CN117045114A - Liquid treatment apparatus and control method for liquid treatment apparatus - Google Patents

Abstract

The present invention provides a liquid processing apparatus and a control method thereof, the liquid processing apparatus including: a heater; the water-cooling heat exchanger comprises a first waterway and a second waterway which exchange heat with each other, and the second waterway is connected with the outlet of the heater; a liquid supply assembly; a parameter monitoring device comprising a first temperature detection device for detecting the temperature of the liquid in the liquid supply assembly and/or at the inlet of the first waterway; the shunt control device comprises an inlet, a first shunt branch and a second shunt branch, wherein the inlet is connected with an outlet of the second waterway, and the shunt control device is used for controlling the on-off of the inlet and the two branches according to parameters of the monitoring device; the phase change device is connected with the second shunt branch and can exchange heat with the liquid flowing out of the second shunt branch. According to the scheme, heat exchange can be performed through the water-cooling heat exchanger when the heat exchange requirement is not large, and the water outlet temperature is corrected through the phase change device when the heat exchange requirement is large, so that the control accuracy of the water outlet temperature can be improved, and the fluctuation of the water outlet temperature is reduced.

Description

Liquid treatment apparatus and control method for liquid treatment apparatus

Technical Field

The present invention relates to the field of household appliances, and more particularly, to a liquid treatment apparatus and a control method of the liquid treatment apparatus.

Background

In daily life, people have a habit of drinking cool and white. The existing technology can quickly heat hot water, but the difficulty of quickly cooling boiling water to drinkable water is high. The implementation modes of the existing scheme are as follows: 1. the user needs water of a certain degree to heat the water to water of a certain degree; the scheme can not thoroughly sterilize the water, and has health hidden trouble. 2. Cooling the boiling water by using a tubular heat exchanger; the scheme needs longer pipeline, and has high cost and large volume. According to experience and research data, water at about 50 ℃ is the most suitable temperature for people to drink.

Therefore, how to propose a liquid treatment device which has a simple structure and a small volume, can quickly cool boiled water to a proper drinking area, has a safe and nontoxic cooling mode, and is widely and easily obtained from phase-change heat-insulating materials becomes a technical problem to be solved at present.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

It is therefore an object of the present invention to provide a liquid treatment apparatus.

Another object of the present invention is to provide a control method of a liquid treatment apparatus.

To achieve the above object, according to a first aspect of the present invention, there is provided a liquid treatment apparatus comprising: a heater capable of heating the flowing liquid; the water-cooling heat exchanger comprises a first waterway, a second waterway and a heat exchange part, the heat exchange part is arranged between the first waterway and the second waterway, the first waterway and the second waterway exchange heat through the heat exchange part, and the second waterway is connected with an outlet of the heater; a liquid supply assembly; the parameter monitoring device is used for monitoring parameters of the liquid treatment device and comprises a first temperature detection device, a second temperature detection device and a third temperature detection device, wherein the first temperature detection device is arranged corresponding to the outlet of the liquid supply assembly and/or the inlet of the first waterway and is used for detecting the temperature of liquid in the liquid supply assembly and/or the temperature of the liquid at the inlet of the first waterway; the shunt control device comprises a shunt control device inlet, a first shunt branch and a second shunt branch, wherein the first shunt branch and the second shunt branch can be communicated with and disconnected from the shunt control device inlet, the shunt control device inlet is connected with an outlet of the second waterway, and the shunt control device is connected with the parameter monitoring device and used for controlling the on-off between the inlet of the shunt control device and the first shunt branch and the second shunt branch according to the parameter of the parameter monitoring device. The phase change device is connected with the second shunt branch and can perform heat exchange treatment on liquid flowing out of the second shunt branch.

According to the technical scheme of the application, the liquid treatment device comprises: the device comprises a liquid supply assembly, a heater, a water-cooled heat exchanger, a shunt control device, a parameter monitoring device and a phase change device. The liquid supply assembly is used as a supply source of liquid such as water to supply the liquid such as water to the heater or the water-cooled heat exchanger. The water-cooling heat exchanger comprises a first waterway, a second waterway and a heat exchange part, and the second waterway is connected with an outlet of the heater. The phase change device is connected with the outlet of the second waterway, the phase change device comprises a phase change material, when the liquid in the second waterway passes through the phase change device, the phase change material can exchange heat with the liquid in the second waterway, and then the effect of cooling or cooling the liquid in the second waterway is achieved. The parameter monitoring device comprises a first temperature detection device, the first temperature detection device is used for detecting the temperature of the liquid supply or the inlet of the first waterway, the diversion is carried out according to the temperature value, if the temperature in the liquid supply is too high, the temperature is required to pass through the phase change device, so that the low heat exchange efficiency of the water-cooling heat exchanger caused by the too high temperature of the liquid supply can be supplemented, the overall heat exchange efficiency of the liquid device is improved, the fluctuation is small, and the accuracy of temperature control is improved. Of course, the parameter monitoring device can also be used for monitoring other parameters such as temperature, water outlet flow, duration and the like, so that whether secondary cooling of the liquid in the second waterway is needed can be judged according to the monitored other parameters and the combination of the liquid supply temperature. That is, the influence of the liquid supply temperature is preferentially considered when judging the flow direction of the water subjected to heat exchange by the water-cooled heat exchanger after passing through the diversion control device. Not just the temperature of the heater outlet. This is because the water-cooled heat exchanger is greatly affected by the temperature of the liquid flowing into the liquid supply assembly outlet or the first water path, that is, the temperature of the liquid in the liquid supply assembly outlet or the first water path will directly affect the heat exchange effect of the water-cooled heat exchanger, or will directly determine the temperature of the heat exchanged liquid flowing out of the second water path. Therefore, when determining whether to start the heat exchange of the phase change device, the temperature of the outlet of the liquid supply assembly and/or the inlet of the first waterway is prioritized, so that the temperature can be controlled more accurately.

When the liquid supply temperature is greater than or equal to a first threshold value, an inlet of the diversion control device is controlled to be communicated with the second diversion branch so as to reduce the temperature through the phase change device. Further, the first threshold is 30 ℃ to 37 ℃.

In this embodiment, the first threshold should be less than 37 ℃ and equal to or greater than 30 ℃. Because the water-cooling heat exchanger adopts the liquid flowing out of the liquid supply assembly to exchange heat the liquid flowing out of the heater, and the temperature flowing out of the heater is the boiled water with the temperature of 100 ℃, the temperature detected by the temperature detection device directly influences the heat exchange effect of the water-cooling heat exchanger. If the first threshold is set to 35 ℃, when the temperature detected by the temperature detecting device is higher than the first threshold of 35 ℃, the temperature of the liquid flowing out of the second waterway after heat exchange is predicted to be higher, and direct drinking cannot be met, so that the liquid in the second waterway needs to flow into the second shunt branch and then flow into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature.

In addition, the liquid treatment device provided by the application can form a double heat exchange device through the water-cooling heat exchanger and the phase change device, and can quickly cool boiling liquid to a required temperature. Compared with the cooling mode of only setting the water-cooling heat exchanger, the cooling mode directly reduces the temperature to 45 ℃ and needs longer heat exchange pipelines, the water-cooling heat exchanger and the phase change device are arranged in the application, so that the heat exchange requirement of the water-cooling heat exchanger is reduced, the pipeline of the water-cooling heat exchanger can be shortened, the water-cooling heat exchanger with lower efficiency is selected, the volume of the water-cooling heat exchanger can be reduced, the cost of the water-cooling heat exchanger is reduced, and the whole volume of a product is smaller, and the cost is lower. Meanwhile, the temperature of the water is controlled through the phase change material, so that the temperature of the water outlet is kept near the phase change temperature, the water outlet temperature is further controllable, and when the water-cooled heat exchanger is independently used, the heat exchange temperature of the water-cooled heat exchanger has a certain deviation due to the fact that the influence of the ambient temperature on the liquid temperature is large, and therefore the water outlet temperature of the single water-cooled heat exchanger is not quite stable. Meanwhile, the single water-cooling heat exchange module is limited by the structural size and efficiency, boiled water cannot be cooled to below 50 ℃, and the outlet water temperature can be further reduced to be lower than 50 ℃ through an additional phase change device, so that the outlet water temperature of the device is more beneficial to people to drink. In addition, the boiling water and the normal temperature water temperature difference is large before the water convection heat exchange, so that the water cooling heat exchange efficiency is high; the phase change device utilizes the characteristic that the phase change temperature of the phase change material is constant, and the efficiency of heat exchange at low temperature difference is higher than that of the water-cooling heat exchanger, so that the water-cooling heat exchanger is arranged in front, and the cooling efficiency can be further improved by the combination of the phase change device arranged behind. And further, can confirm the heat exchange efficiency of water-cooling heat exchanger based on temperature etc. before the water-cooling heat exchanger through setting up parameter detection device and reposition of redundant personnel controlling means, so can confirm whether the hot water after the water-cooling heat transfer needs further to carry out the secondary cooling through phase change device based on the heat exchange efficiency of water-cooling heat exchanger, just so can reduce the influence of liquid supply temperature, make the liquid temperature of output more controllable, stable, avoid because liquid supply temperature is too low, and lead to boiled water or drink to be excessively cooled down, also can avoid leading to the cooling deficiency because the heat exchange efficiency of water-cooling heat exchanger is too low that liquid supply temperature is higher, and then lead to unable output user required temperature.

The device can be applied to a discontinuous drinking water system, and can rapidly cool boiled water in a heat storage and environmental heat dissipation mode by using the phase change material, and the device has the characteristics of no extra energy consumption, simple structure, high efficiency, reusability and the like in the cooling process, and has very good market application prospect and value.

The phase-change cooling module has the characteristic of quickly absorbing a large amount of heat energy at constant temperature, the heat of high-temperature hot water can be quickly stored in the phase-change material component, the temperature of the phase-change material is not higher than a phase-change temperature point, and further the continuous proceeding of the heat exchange process is ensured until the temperature of the hot water is balanced with the temperature of the phase-change material. The phase change material is solid-liquid phase change material, the phase change temperature is between 40 ℃ and 45 ℃, such as paraffin composite phase change material, synthetic salt material and the like.

In the above technical solution, the parameter monitoring device includes: and the second temperature detection device is used for detecting the liquid temperature at the outlet of the second waterway and/or the liquid temperature at the inlet of the diversion control device and/or the inlet temperature of the heater.

In this technical scheme, parameter monitoring device includes second temperature-detecting device, and the temperature setting that second temperature-detecting device can monitor as required is in corresponding position. For example, the water cooling device can be arranged at the inlet of the diversion control device and/or the outlet of the second waterway so as to detect the temperature of the water cooling heat exchanger after heat exchange. For another example, the device can be arranged at the inlet of the heater to detect the temperature of the inlet of the heater, so as to judge the fluctuation of the temperature of the feed liquid or the efficiency of the water-cooled heat exchanger. The water outlet temperature or fluctuation of the water outlet temperature of the water-cooled heat exchanger can be prejudged by detecting the inlet temperature of the heater, if the inlet temperature of the heater is higher, the temperature reduction efficiency of the water-cooled heat exchanger is prejudged at the moment, and the stability and the accuracy of the water outlet temperature of the liquid treatment device are guaranteed by shunting to the phase change device, so that the full utilization of the efficiency of the water-cooled heat exchanger and the phase change device is realized. Specifically, when the second temperature detection device detects that the temperature is lower, the boiled water can be cooled to a temperature suitable for drinking only through the water-cooling heat exchanger, and the hot water after heat exchange of the cold heat exchanger is directly output through the first split-flow branch, so that excessive cooling is avoided. When the second temperature detecting device detects that the temperature is higher, the boiled water cannot be cooled to the temperature suitable for drinking only by the water-cooling heat exchanger. Therefore, the diversion control device can be controlled to enable the phase change device to be connected into the waterway, so that liquid subjected to heat exchange through the water-cooling heat exchanger flows into the second diversion branch from the second waterway to enter the phase change device, and the effect of performing secondary cooling on the liquid in the second diversion branch is achieved.

In the above technical solution, the second temperature detecting device is configured to detect a liquid temperature at an outlet of the second waterway, and/or a liquid temperature at an inlet of the shunt control device; the shunt control device is connected with the second temperature detection device and can control the shunt control device to be communicated with the second shunt branch when the temperature detected by the second temperature detection device is greater than or equal to a second threshold value, such as a second temperature value or a second preset temperature range, and control the shunt control device to be disconnected with the second shunt branch when the temperature detected by the second temperature detection device is less than the second temperature value or less than the second preset temperature range.

In this technical scheme, shunt control device links with second temperature detection device to control the return circuit conduction in shunt control device according to the temperature. The second temperature detection device is arranged at the outlet of the second waterway and/or the inlet of the diversion control device, and is used for monitoring the cooling effect of the heat exchanger, if the temperature of the liquid at the outlet of the second waterway and/or the temperature of the liquid at the inlet of the diversion control device is too high, the heat exchange effect of the heat exchanger is poor, so that the temperature of water coming out of the second waterway is relatively high or the temperature fluctuation is relatively large, and at the moment, the controller can control the inlet of the diversion control device to be communicated with the second diversion branch, so that the liquid in the second waterway flows into the second diversion branch and then flows into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature. On the contrary, if the temperature of the liquid at the outlet of the second waterway and/or the temperature of the liquid at the inlet of the shunt control device is not too high, the heat exchange effect of the heat exchanger is better, so that the temperature of the water coming out of the second waterway is lower, or the temperature fluctuation is smaller, and at the moment, the controller can control the inlet of the shunt control device to be communicated with the first shunt branch, so that the liquid in the second waterway is directly discharged without passing through the phase change device.

Further, the second temperature value is 50 ℃ or higher and 60 ℃ or lower.

In the technical scheme, the second preset temperature range is less than 60 ℃ and more than or equal to 50 ℃. Because the water-cooling heat exchanger adopts the liquid flowing out of the liquid supply assembly to exchange heat the liquid flowing out of the heater, and the temperature flowing out of the heater is the boiled water with the temperature of 100 ℃, the temperature detected by the second temperature detecting device directly influences the heat exchange effect of the water-cooling heat exchanger. If the first preset threshold is set to 50 ℃, when the temperature of the liquid detected by the second temperature detecting device is higher than the first preset threshold by 50 ℃, the temperature of the liquid flowing out of the second waterway after heat exchange is higher, and direct drinking cannot be met, so that the liquid in the second waterway needs to flow into the second shunt branch and then flow into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature. When the temperature of the liquid detected by the second temperature detection device is lower than the first preset threshold value by 50 ℃, the water-cooling heat exchanger can exchange heat of the liquid flowing out of the second waterway to an appropriate temperature, so that a user can drink the liquid directly.

In the above technical solution, the second temperature detecting device is configured to detect a temperature of an outlet of the second waterway or a liquid temperature W2 of an inlet of the shunt control device, and when W2 is greater than or equal to a preset temperature threshold, control the inlet of the shunt control device to be communicated with the second shunt branch; the outlet water set temperature of the liquid treatment device is W0, when the absolute value of W2-W0 is larger than or equal to a third temperature value or a third preset temperature range, the inlet of the diversion control device is communicated with the second diversion branch, and when the absolute value of W2-W0 is smaller than the third temperature value or the third preset temperature range, the inlet of the diversion control device is disconnected with the second diversion branch; or the shunt control device is used for controlling the inlet of the shunt control device to be communicated with the second shunt branch when the temperature W2 detected by the second temperature detection device is larger than or equal to a fourth temperature value or a fourth preset temperature range, and controlling the inlet of the shunt control device to be disconnected with the second shunt branch when the temperature W2 detected by the second temperature detection device is smaller than the fourth temperature value or the fourth preset temperature range.

In this technical scheme, whether heat exchange is performed through the phase change device can be determined based on the temperature of the outlet of the second waterway or the liquid temperature W2 of the inlet of the shunt control device. That is, the second temperature detecting device is used for judging whether the temperature of the second waterway outlet or the inlet of the diversion control device is too high, and if so, the second waterway outlet or the inlet of the diversion control device needs to pass through the phase change device. Too low does not pass through the phase change device. For example, when the water outlet set temperature of the liquid treatment device is W0 and |w2-w0| is greater than or equal to a third temperature value or a third preset temperature range, the set temperature is greatly different from the temperature after the first heat exchange, so that the water is required to undergo phase change heat exchange, otherwise, the water is directly discharged without undergoing phase change heat exchange. Of course, the fourth temperature value or the fourth preset temperature range may also be set to determine whether the temperature W2 at the outlet of the second waterway or the inlet of the shunt control device is too high, so as to determine whether the second waterway or the inlet of the shunt control device needs to pass through the phase change device. Further, the third temperature value is 4 ℃, 5 ℃ or 7 ℃. Because the difference threshold value of the I W2-W0I is smaller than 7 ℃, the water outlet temperature reaches the preset water outlet temperature fluctuation range at the moment, the phase change module is not required to be cooled for the second time, the multiplexing of the phase change material is promoted, the utilization efficiency of the phase change material is improved, and the technical effects of cooling and stabilizing the phase change device are ensured. In another aspect, when the temperature of the liquid in the second waterway and/or the temperature of the liquid at the inlet of the diversion control device is greater than or equal to a fifth threshold, for example, a fifth temperature value or a fifth preset temperature range, it is indicated that the temperature of the liquid flowing out of the second waterway after the first heat exchange is higher and cannot satisfy the direct drinking, so that the liquid in the second waterway needs to flow into the second diversion branch and then flow into the phase change device to perform the secondary cooling of the liquid.

Wherein the fifth temperature value or the fifth preset temperature range is more than or equal to 50 ℃ and less than or equal to 60 ℃. Because the water-cooling heat exchanger adopts the liquid flowing out of the liquid supply assembly to exchange heat the liquid flowing out of the heater, and the temperature flowing out of the heater is the boiled water with the temperature of 100 ℃, the temperature detected by the second temperature detecting device directly influences the heat exchange effect of the water-cooling heat exchanger. If the fifth temperature value is set to 50 ℃, when the temperature of the liquid detected by the second temperature detecting device is higher than the fifth temperature value by 50 ℃, the temperature of the liquid flowing out of the second waterway after heat exchange is higher, and direct drinking cannot be satisfied, so that the liquid in the second waterway needs to flow into the second branch circuit and then flow into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature. When the temperature of the liquid detected by the second temperature detection device is lower than the fifth temperature value by 50 ℃, the water-cooling heat exchanger can exchange heat of the liquid flowing out of the second waterway to a proper temperature, so that a user can drink the liquid directly.

In the above technical solution, the parameter monitoring device further includes: the duration detection device is used for detecting the continuous working duration of the water-cooled heat exchanger and/or the continuous working duration of the phase change device and/or detecting the intermittent duration T3 of water outlet of the liquid treatment device within a first preset duration; the counting device is used for calculating the times N1 of the inlet temperature of the heater being greater than or equal to a second threshold value in a first preset time period, calculating the continuous times N2 of the inlet temperature of the heater being greater than or equal to the second threshold value in a second preset time period, calculating the liquid temperature of the outlet of the second waterway in a third preset time period, and/or the times N3 of the inlet temperature of the diversion control device being greater than or equal to the third threshold value in a fourth preset time period, and/or the continuous times N4 of the outlet of the second waterway in the liquid temperature of the inlet of the diversion control device being greater than or equal to the third threshold value, and/or the discontinuous time period of water outlet of the liquid treatment device in a tenth preset time period and/or an eleventh preset time period, and/or the times N5 of the third discontinuous time period T6 of water outlet in the twelfth preset time period being less than or equal to a third target time period, and/or the times N6 of the continuous times of the water outlet of the liquid treatment device in the thirteenth preset time period being less than or equal to the fourth target time period; the flow detection device is used for detecting the water yield of the liquid treatment device; the shunt control device is specifically configured to control on-off between an inlet of the shunt control device and the first shunt branch and the second shunt branch according to parameters monitored by at least one of the second temperature detection device, the duration detection device, the counting device and the flow detection device when the temperature detected by the first temperature detection device is less than a first threshold.

In the technical scheme, the parameter monitoring device further comprises a duration detection device, a flow detection device, a timing device and the like, and is used for monitoring duration, flow, times and the like. The device can monitor whether the phase change device is required to perform secondary heat exchange in a continuous working time of the water-cooled heat exchanger, water yield of the water outlet within a certain time, or intermittent time of intermittent water yielding of the water outlet within a certain time and the like. Of course, it is also possible to combine the temperature and the parameter monitored by the second monitoring device together to determine whether the phase change device is required to perform the secondary heat exchange. That is, the judging mode of whether the phase change device is required to perform secondary heat exchange is various, and the phase change device can be set according to actual needs. For example, in a certain time, the sum of times that the interruption time length of water outlet of the water outlet is smaller than a threshold value in a certain time is larger than a preset value; or the sum of the continuous times that the interruption time length is smaller than the threshold value is larger than a preset value, the phase change device is considered to be required to perform secondary heat exchange.

The total heat exchange power of the liquid treatment device is P, the heat exchange power of the water-cooling heat exchanger is P1, the heat exchange power of the phase change device is P2, and P1= (0.5-0.7) P and/or P2= (0.1-0.4) P. I.e. the proportion of the allocated power P1 of the water-cooled heat exchanger to the total power P is 0.5-0.7. The proportion of the power P2 distributed by the phase change device to the total power P is 0.1-0.4. Further, the power duty cycle of the phase change device is 0.2-0.31. And through the cooperation of the power ratio of the two, the high temperature difference of the water-cooling heat exchanger can be fully utilized, the efficiency of water-cooling heat exchange is improved, and meanwhile, the high heat exchange efficiency of the phase change device can be fully utilized when the temperature difference is low. Through the optimal configuration of the power, higher cooling efficiency can be realized. Meanwhile, the power distribution makes full use of the heat exchange efficiency of the water-cooled heat exchanger and the phase change device, namely the heat exchange efficiency of the water-cooled heat exchanger and the phase change device, and enables the water outlet flow of the liquid treatment device to keep higher flow in unit time; thirdly, the volumes of the water-cooling heat exchanger and the phase change device can be matched, because the water-cooling heat exchanger needs a larger volume if the water-cooling heat exchanger is provided with higher power to achieve higher heat exchange efficiency, and the phase change device with a larger volume is provided with smaller power; if the phase change device is provided with higher power to achieve higher heat exchange efficiency, a larger volume is required, and if the power of the phase change device is lower, a water-cooled heat exchanger with a larger volume is required. The liquid treatment device has the advantages that the whole volume of the liquid treatment device is increased, the miniaturization of the device is not utilized, the power phase of the liquid treatment device and the power phase of the liquid treatment device are adapted, the volume phase of the liquid treatment device and the power phase of the liquid treatment device are adapted, the whole heat exchange efficiency of the liquid treatment device can be ensured, the accurate control of the temperature is realized, the fluctuation of the temperature is reduced, the volume of the liquid treatment device can be ensured not to be too large, the table top is convenient to place, the excessive space is not occupied, and the user experience is improved.

Further, the temperature difference between the inlet temperature and the outlet temperature of the water-cooled heat exchanger is less than or equal to 55 ℃ and more than or equal to 40 ℃. Further, the temperature difference between the inlet temperature and the outlet temperature of the phase change device is 20 ℃ or less and 10 ℃ or more. The arrangement can limit the power of each heat exchanger through the temperature control of the outlet and the inlet of the two heat exchangers, so that the heat exchange efficiency of the two heat exchangers can be limited, and the power distribution between the water-cooled heat exchanger and the phase change device is realized. Therefore, the precision of the phase change device for temperature regulation can be improved, the size of the phase change device is reduced, and the miniaturization of the liquid treatment device is facilitated. In addition, the water-cooling heat exchanger and the phase-change device can realize maximum efficiency, and the water-cooling heat exchanger and the phase-change device can cooperate with each other to improve the accuracy of the water outlet temperature of the liquid treatment device and the heat exchange efficiency of the water-cooling heat exchanger and the phase-change device. The temperature difference of the water-cooling heat exchanger is set to be between 40 and 55 ℃, so that the realization of the efficiency of the water-cooling heat exchanger is ensured, the temperature difference of the phase change device is set to be between 10 and 20 ℃, the temperature can be further corrected in a small range on the basis of ensuring the full realization of the efficiency of the water-cooling heat exchanger, the temperature difference range is small at the moment, the fluctuation of the corrected temperature can be reduced, and meanwhile, the efficiency of the phase change device can be fully realized.

Further, the outlet water temperature of the phase change device is more than or equal to 30 ℃ and less than or equal to 50 ℃. Further, the outlet water temperature of the phase change device is more than or equal to 40 ℃ and less than or equal to 50 ℃.

Further, the liquid treatment device comprises a water outlet component, and the water outlet flow rate of the water outlet component is less than or equal to 7.5g/s. The heating requirement can be limited by the arrangement, the heating efficiency is ensured, so that the cooperation of the phase change device and the water-cooling heat exchanger can meet the heat exchange requirement, the temperature fluctuation can be reduced, and the accurate control of the temperature is realized.

Further, the phase change temperature of the phase change material in the phase change device and the water outlet temperature of the second waterway have a preset temperature difference. The water discharged from the second waterway can induce the phase change of the phase change material through the preset temperature difference, so that the phase change material can be subjected to the phase change, and the temperature of the water output from the second waterway is controlled.

Further, the absolute value of the preset temperature difference is 20 ℃ or less, or the absolute value of the preset temperature difference is 10 ℃ or less. The arrangement can improve the utilization rate of the phase change material, reduce the power consumption of the phase change device, improve the heating efficiency, improve the temperature stabilizing effect of the phase change device, reduce the volume of the phase change device and promote the miniaturization of the whole structure. Of course, the arrangement can also avoid overlarge temperature difference, so that the phase change device cannot meet corresponding heat exchange requirements, and the situation that the phase change device cannot work due to overlarge temperature difference can also be avoided. Therefore, the heat exchange effect is ensured, the high flow rate and the continuous stability of the outlet water temperature are ensured, and the experience of a user is further improved.

In any of the above technical solutions, in a preset period of time, the temperature change value of the outlet water temperature of the second waterway is a, and in the preset period of time, the temperature change value of the outlet water temperature of the phase change device is b, a-b >1.5 ℃. Further, a-b >3 ℃, i.e. when both the heat exchanger and the phase change device have deviations in the outlet water temperature, the outlet water temperature deviation of the heat exchanger should be larger. That is, in the same time period, the temperature change value of the outlet water temperature of the second waterway is a value larger than the temperature change value b of the outlet water temperature of the phase change device, that is, the outlet water temperature of the second waterway fluctuates more, and the outlet water temperature of the first heat exchange period fluctuates less.

In the technical scheme, a-b is higher than 1.5 ℃, and further, a-b is higher than 3 ℃, so that on one hand, the power consumption of the phase change material is reduced, the power effect of the heating module can be ensured, and the heating efficiency is improved; on the other hand, the utilization rate of the phase change material can be improved, and the temperature stabilizing effect of the phase change device is improved; finally, the volume of the phase change device is reduced, and the miniaturization of the whole structure is promoted.

Further, the total heat exchange amount of the phase change device is more than or equal to 25KJ. The heat exchange efficiency of the phase change device can be ensured by the arrangement, and the temperature fluctuation is reduced, so that the accurate control of the temperature is realized. The total heat exchange amount is more than or equal to 25KJ, so that the phase change device has the function of stabilizing the temperature.

Further, the phase change device comprises a phase change material, the phase change material comprises paraffin, and the content of the phase change material is more than or equal to 110g. The heat exchange efficiency of the phase change device can be ensured by the arrangement, and the temperature fluctuation is reduced, so that the accurate control of the temperature is realized. The content of the phase change material is more than or equal to 110g, so that the phase change device has the function of stabilizing the temperature.

According to the application, the optimal heat exchange interval of the water-cooled heat exchanger is the interval of cooling boiled water at 100 ℃ to 45-60 ℃. The heat exchange efficiency is lower below the temperature interval, and the water convection heat exchange has a great cost advantage above the temperature interval. And the phase change device can exchange heat at the tail end, so that the heat exchange efficiency is improved.

Further, the absolute value of the difference between the outlet water temperature of the phase change device and the target temperature is smaller than a preset temperature value, and the preset temperature value is larger than or equal to 0 ℃ and smaller than or equal to 7 ℃.

In the technical scheme, the absolute value of the difference between the outlet water temperature of the phase change device and the target temperature is smaller than a preset temperature value, the preset temperature value is larger than or equal to 0 ℃ and smaller than or equal to 7 ℃, namely, the difference between the temperature of the outlet water after temperature control of the phase change device and the ideal temperature is smaller than 7 ℃, so that the stability of the outlet water temperature is improved. The arrangement ensures that the temperature fluctuation of the output water of the phase-change device is moderate and is overlarge, thereby controlling the temperature fluctuation, avoiding overlarge temperature fluctuation, reducing the higher requirement on the phase-change device caused by overlarge precision requirement and reducing the cost of the phase-change device. The outlet water temperature may be higher than the target temperature or lower than the target temperature. The target temperature is the desired temperature that the phase change device is required to output, which is related to the target temperature of the water that the user desires. For example, in general, the liquid treatment apparatus presets a target outlet temperature, for example, the liquid treatment apparatus sets several temperature steps for a user to select, so as to determine a target temperature of water flowing out from a water outlet of the liquid treatment apparatus, after the user selects a corresponding temperature step, the target outlet temperature is determined, and after the target outlet temperature is determined, the target temperature of the phase change apparatus is determined correspondingly.

In general, the maximum heating power of a conventional small-sized household electrical appliance is 2300W, and 7.35g/s of pure water can be heated from room temperature of 25 ℃ to boiling. In order to ensure that all the effluent is boiled for sterilization, the maximum flow of the liquid treatment device is not more than 7.5g/s; the actual outlet water temperature is 50-60 ℃ when the heat exchange power of the water-cooling heat exchanger in the fluctuation range of room temperature is 1540-1240W. The phase change device can cool the temperature of 55+/-5 ℃ to 40+/-3 ℃, and the heat exchange power of the phase change device is 210W-710W.

The temperature in the liquid supply tank is high, so that the efficiency of the heat exchange part of the water-cooling heat exchanger is low, the phase change device needs to provide higher cooling efficiency, and the consumption of phase change materials is faster; the heat exchange power is 700W, so that normal drinking habit is met, continuous water outlet is needed to be carried out for not less than 35 seconds, and the total heat exchange amount of the phase change material is not less than 25kJ; the phase change material with the temperature of 40 ℃ is usually phase change paraffin wax, and the heat storage density is about 200J/g-240J/g, so the total filling amount is not less than 110g.

The water outlet temperature of the water cooling module is higher than the temperature of the phase change material, so that the phase change material is consumed as little as possible on the premise that the phase change material can generate phase change, and the cooling effect for a longer time is realized.

Further, the split control device comprises a split valve, and the split valve is a three-way valve.

In this technical scheme, shunt control device is including the shunt valve, and the shunt valve sets up to the three-way valve, and the three-way valve is connected second water route and first reposition of redundant personnel branch road, second reposition of redundant personnel branch road respectively.

In the above technical scheme, the outlet of the first waterway is connected with the inlet of the heater, and the liquid flowing through the first waterway enters the heater to be heated and then enters the second waterway.

In this embodiment, the outlet of the first waterway is connected to the inlet of the heater. That is, the water of the first water path after heat exchange with the heated liquid is directly input into the heater, heated by the heater and output. Through this kind of setting, can carry out reuse to the hot water in the first water route to this has avoided the waste of heat, has improved the heating efficiency of whole product. Meanwhile, the first waterway can be directly connected with liquid supply devices such as a liquid supply pipe, a liquid supply box and the like, so that the liquid supply devices, the first waterway and the heater are connected in series.

Further, the inlet of the heater is connected only to the first waterway, i.e. the water in the heater is all from the first waterway. In another aspect, the inlet of the heater is connected to the first waterway and the liquid supply device simultaneously, i.e., two branches are provided for supplying water to the heater simultaneously.

In the above technical solution, the phase change device further includes: a housing; the phase change channel is arranged in the shell or wound outside the shell and is connected with the outlet of the second waterway; the phase change material is arranged in the shell, and the phase change channel can exchange heat with liquid in the phase change channel during phase change; the phase-change channel and the second waterway are of an integrated structure, or the phase-change channel and the second waterway can be detachably connected, and the phase-change channel and the shell can be detachably connected, or the phase-change channel and the shell are assembled into an integrated structure.

In this technical solution, the phase change device comprises a housing, a phase change material and a phase change channel. The phase change channel can be arranged in the shell, and is in an integral structure or a detachable structure with the shell. The phase change channel may alternatively be a tube wound around the outside of the housing. Further, the phase change channel and the second waterway may be connected to form a pipe, and at this time, the phase change material and the housing are assembled to be a whole. Of course, the phase change channel and the second waterway may also be detachably connected. That is, in the present application, the phase change channel may be integrally formed with the phase change material and the housing, and the phase change channel may be independent of the phase change material and the housing. When the phase change channel exists independently, the phase change channel and the second waterway can be connected into an integrated structure or a split structure. I.e. the structure of the phase change device, can be arranged in a variety of ways according to the actual needs. But most preferably the housing, phase change material and phase change channel are assembled as a unit and then detachably connected to the second waterway. Further, the liquid treatment apparatus further comprises a liquid supply device for supplying water.

The phase change device comprises a phase change channel and a phase change heat storage component formed by phase change materials. The phase change channel has a row-type or pipe-type structure, can effectively increase water flow formation, prolong heat exchange time, realize rapid cooling of boiled water, and can reach 40 ℃ at the minimum.

Further, the liquid supply assembly includes: the outlet of the liquid supply channel is connected with the inlet of the heater and the cooling pipeline. The inlet of the liquid supply channel is connected with an external water source, or the liquid supply device further comprises a liquid supply box, and the inlet of the liquid supply channel is connected with the liquid supply box. Wherein, temperature detecting device sets up on the confession liquid case, or temperature detecting device sets up on the confession liquid passageway.

In this technical scheme, the liquid supply subassembly includes liquid supply case and feed liquor passageway, and the export of feed liquor passageway is connected with the entry of heater, and wherein, the export of feed liquor passageway links to each other with the entry of heater, can be that the feed liquor passageway is direct to supply water for the heater, also can be that the feed liquor passageway is supplied water for the heater through first water route. The liquid supply channel can also be connected with the first waterway to supply water for the first waterway. Wherein the temperature detection device is arranged on the liquid supply box or the liquid supply channel. This kind of setting provides the water guarantee through the confession liquid passageway for the product.

The inlet of the liquid supply channel can be directly connected with a water pipe and the like in the home of a user, and the structure of the product can be simplified without specially arranging a liquid supply box, but the product is needed to be used close to the water pipe. Meanwhile, a liquid supply tank can be arranged in the liquid treatment device, and at the moment, water can be stably supplied through the liquid supply tank, so that the installation position of a product is more flexible and convenient.

Further, the liquid treatment apparatus further includes: the pump body is arranged on the liquid supply channel.

In this solution, the liquid treatment device comprises a pump body. The pump body is arranged on the liquid supply channel, the start and stop of the liquid supply channel can be controlled through the pump body, and the flow of the supplied liquid can be controlled, so that the cooling effect and the water yield of the water-cooling heat exchanger are guaranteed.

In the above technical scheme, the liquid treatment device further comprises a boiling water channel, and the outlet of the heater is connected with the boiling water channel and the phase change device in parallel.

In this solution, the liquid treatment apparatus further comprises a boiling water channel. The boiling water channel and the phase change device are connected in parallel with the outlet of the heater. The water heated by the heater can be output through the boiling water channel, so that the product can obtain the boiling water directly heated by the heater when outputting the warm water suitable for direct drinking by a user, and the user can conveniently make tea, brew coffee and the like.

In the above technical scheme, the liquid storage tank is connected with at least one of the outlet of the boiling water channel, the outlet of the first diversion branch and the outlet of the phase change device, so as to collect the liquid output by the outlet of the boiling water channel and/or the outlet of the first diversion branch and/or the outlet of the phase change device.

In this technical scheme, liquid processing apparatus still includes the liquid reserve tank, and the liquid reserve tank can collect the liquid that cools off after heating. The liquid storage tank can be connected with one or more of the heater, the second waterway and the phase change device, so that water output by one or more of the boiling water channel, the first diversion branch and the phase change device can be collected. On the one hand, the water with different temperatures can be mixed in the liquid storage tank and then output through the liquid storage tank, so that the effect of further temperature adjustment is achieved. For example, the liquid storage tank is connected to the outlet of the boiling water channel, so that the hot water can be directly discharged. The liquid storage tank is connected to the first diversion branch and the outlet of the boiling water channel, and when the ambient temperature is low, the liquid output by the outlet of the heater and the outlet of the second waterway can be neutralized so as to adjust the liquid with the required temperature. Or the liquid storage tank is connected to the outlet of the phase change device, so that water cooled to the temperature required by a user can be output. Meanwhile, the instant heating device in the prior art is small in water yield and easy to branch, so that the user experience is very poor. However, after the liquid storage tank is arranged, the liquid can be stored first, and the liquid is uniformly discharged after a certain amount of liquid is reached, so that the waiting time of a user is reduced, water outlet bifurcation is avoided, and the user experience is improved.

Further, a control switch is arranged on any connecting channel among the liquid storage tank, the boiling water channel, the first shunt branch and the phase change device, and the on-off of the corresponding connecting channel can be controlled through the control switch, so that in the actual process, the connection condition of the liquid storage tank, the boiling water channel, the first shunt branch and the phase change device can be controlled through the on-off of the control switch.

Further, the liquid treatment device also comprises a water outlet component, and the water outlet component is connected with an outlet of the liquid storage tank.

In this technical scheme, when being provided with the liquid reserve tank, go out the water subassembly and connect at the liquid reserve tank, go out the water subassembly and directly discharge the liquid in the liquid reserve tank.

In the above technical scheme, the water-cooled heat exchanger comprises a tubular heat exchange structure or a row type heat exchange structure. The concrete structure of the water-cooling heat exchanger can be set according to the needs, and the tubular heat exchange structure and the row type heat exchange structure are common and easy to purchase, so that the cost can be reduced. In the above technical solution, the heater includes an instant heater and a non-instant heater.

In the technical scheme, the heater can be an instant heating type heater or a non-instant heating type heater, and the instant heating type heater can rapidly heat liquid to boiling so as to achieve the effect of instant heating and instant drinking. The instant heating type heater is not required to be provided with a water cooling heat exchanger which can flow liquid into the water cooling heat exchanger after being heated to boiling, and the instant heating type heater can not achieve instant drinking, but can also enable the output liquid temperature to be suitable for people to drink. In particular arrangements, the heater may be configured to be instant, or not instant, as desired. Wherein, the instant heating type heater can be a thick mode heating tube or a PTC tube.

Further, the first waterway and the second waterway are metal pipelines.

In the technical scheme, the first waterway and the second waterway are metal pipelines. Through the good heat conductivity of metal, guaranteed the heat exchange efficiency between first water route and the second water route, guaranteed then that liquid processing apparatus can be according to the default temperature with liquid discharge.

In another technical scheme, the first waterway and the second waterway both comprise a metal part and a nonmetal part, and the parts of the first waterway and the second waterway, which are contacted with the heat exchange part through the metal part and are not contacted with the heat exchange part, are nonmetal parts.

In this aspect, the first waterway includes a metal portion and a nonmetal portion, and the second waterway includes a metal portion and a nonmetal portion. The metal part is used for contacting with the heat exchange part, the heat exchange efficiency between the first waterway and the second waterway is guaranteed through good heat conductivity of the metal part, and meanwhile, the surface of the first waterway and the surface of the second waterway, which is not contacted with the water-cooling heat exchanger, are set to be nonmetal parts, so that the liquid temperature can be prevented from being influenced by room temperature. Thereby ensuring that the liquid treatment device can discharge liquid according to the preset temperature. For example, plastic can be used as the nonmetal part, and the plastic has poor heat conduction capability, can effectively prevent the temperature of liquid from being influenced by room temperature, and has low cost and good toughness, thereby being beneficial to the installation and maintenance of equipment.

In the above technical scheme, the liquid processing device further comprises a heat dissipation device, which is arranged corresponding to the phase change device and used for dissipating heat of the phase change device.

In this technical scheme, liquid processing apparatus still includes heat abstractor, and heat abstractor dispels the heat for phase change device, and then has guaranteed that phase change device can guarantee all the time at the same temperature for phase change material can remain all the time can absorb heat or can give off thermal state, so that phase change material's consumption as far as possible is little, realizes the cooling effect of longer time.

Further, the heat dissipation device comprises one or more of an air cooling heat dissipation device, a heat dissipation fin and a water cooling heat dissipation device.

Because the air cooling heat dissipation device, the heat dissipation fins and the water cooling heat dissipation device are common, the purchasing and the installation are convenient, and the product cost can be reduced.

In the above technical solution, the liquid treatment device includes at least one of an instant heating container, a water dispenser, and a beverage machine.

A second aspect of the present invention provides a method for controlling a liquid treatment apparatus, for use in the liquid treatment apparatus provided in any one of the first aspect. The control method comprises the following steps: and acquiring the temperature detected by the first temperature detection device, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value so as to reduce the temperature through the phase change device.

According to the control method of the liquid treatment device provided by the application, the on-off between the inlet of the diversion control device and the first diversion branch and the second diversion branch can be controlled based on the liquid supply temperature. The liquid supply temperature can be used for determining whether the liquid subjected to heat exchange of the water-cooled heat exchanger needs to be subjected to secondary heat exchange through the phase change device. Generally, when the liquid supply temperature is greater than the first threshold value, the liquid supply temperature is higher, so that the heat exchange requirement is larger, and the secondary heat exchange is needed through the phase change device, so that the low heat exchange efficiency of the water-cooling heat exchanger caused by the overhigh liquid supply temperature can be supplemented, the overall heat exchange efficiency of the liquid device is improved, the fluctuation is small, and the accuracy of temperature control is improved. Otherwise, the heat exchange requirement is not large, and at this time, the flow direction of the water flow needs to be further judged according to the subsequent conditions.

Further, the first threshold is 30 ℃ to 37 ℃.

In this embodiment, the first threshold should be less than 37 ℃ and equal to or greater than 30 ℃. Because the water-cooling heat exchanger adopts the liquid flowing out of the liquid supply assembly to exchange heat the liquid flowing out of the heater, and the temperature flowing out of the heater is the boiled water with the temperature of 100 ℃, the temperature detected by the temperature detection device directly influences the heat exchange effect of the water-cooling heat exchanger. If the first threshold is set to 35 ℃, when the temperature detected by the temperature detecting device is higher than the first threshold of 35 ℃, the temperature of the liquid flowing out of the second waterway after heat exchange is higher, and direct drinking cannot be met, so that the liquid in the second waterway needs to flow into the second shunt branch and then flow into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the inlet temperature of the heater, and when the inlet temperature of the heater is larger than or equal to a second threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device; or calculating the times N1 that the inlet temperature of the heater is greater than or equal to a second threshold value within a first preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N1 are greater than the first preset times so as to cool through the phase change device; or calculating the continuous times N2 of which the inlet temperature of the heater is greater than or equal to a second threshold value within a second preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N2 are greater than the second preset times so as to cool through the phase change device.

In this technical scheme, when the inlet temperature of the heater is higher than the second threshold value, it is indicated that the inlet temperature of the heater is too high, and the heat exchange effect of the heat exchanger can be generally considered to be poor, so that the temperature prediction of water coming out of the second waterway is relatively high, or the temperature fluctuation is relatively large, and therefore, at this time, the inlet of the diversion control device can be controlled to be conducted with the second diversion branch, so that the liquid in the second waterway flows into the second diversion branch, flows into the phase change device, and is cooled for the second time, so that the liquid is discharged after reaching the proper temperature. Further, in order to avoid erroneous judgment, when the liquid supply temperature is low, the number of times N1 that the inlet temperature is equal to or greater than the second threshold value in the first preset time period or the number of times N2 that the inlet temperature is equal to or greater than the second threshold value in the second preset time period may be further calculated, and if the number of times N1 or the number of times N2 is greater than the specified threshold value, it is indicated that the inlet temperature of the heater is actually too high, rather than a sporadic phenomenon, so that the phase change device is required to perform secondary heat exchange. If the number of times N1 or the number of times N2 is smaller than the predetermined threshold value, it is indicated that the inlet temperature of the heater is not excessively high continuously but is a sporadic phenomenon, so that the phase change device is not required to perform the secondary heat exchange. According to the arrangement, the heat exchange efficiency of the water-cooling heat exchanger is doubly judged through the inlet temperature of the heater and the frequency of the higher inlet temperature, so that the control accuracy of the temperature is ensured.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the liquid temperature of an outlet of the second waterway and/or the liquid temperature of an inlet of the shunt control device, and when the liquid temperature of the outlet of the second waterway and/or the liquid temperature of the inlet of the shunt control device is larger than or equal to a third threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device; or calculating the liquid temperature of the outlet of the second waterway and/or the frequency N3 of the liquid temperature of the inlet of the shunt control device being greater than or equal to a third threshold value within a third preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the frequency N3 is greater than the third preset frequency so as to reduce the temperature through the phase change device; or calculating the liquid temperature of the outlet of the second waterway and/or the continuous times N4 of which the liquid temperature of the inlet of the shunt control device is greater than or equal to a third threshold value within a fourth preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N4 are greater than the fourth preset times so as to reduce the temperature through the phase change device.

In the technical scheme, when the temperature of the liquid supply is lower, the temperature of the liquid after heat exchange of the heat exchanger can be further judged, and if the temperature of the liquid output after heat exchange of the heat exchanger is higher, the heat exchange efficiency of the water-cooling heat exchanger is reduced, so that the phase change device is required to be further cooled. Of course, the number of times or the number of times of continuous reading of the temperature of the liquid output after heat exchange of the heat exchanger in a certain time can be counted to determine whether the heat exchange efficiency of the water-cooled heat exchanger is reduced, and if the number of times or the number of times of continuous reading of the temperature of the liquid output after heat exchange of the heat exchanger is high, the heat exchange efficiency of the water-cooled heat exchanger is reduced, so that the phase change device is required to be further cooled.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, the continuous working time length T1 of the water-cooled heat exchanger is obtained, and when the T1 is larger than or equal to a fifth preset time length, an inlet of the shunt control device is controlled to be communicated with the second shunt branch so as to cool through the phase change device; and when T1 is smaller than a fifth preset time period, controlling the inlet of the shunt control device to be communicated with the first shunt branch.

In the technical scheme, when the liquid supply temperature is lower, the continuous working time length T1 of the water-cooling heat exchanger can be further acquired, and if the working time length of the water-cooling heat exchanger is longer, the heat exchange efficiency of the water-cooling heat exchanger can be reduced, so that the heat exchange efficiency of the water-cooling heat exchanger can be predicted to be reduced indeed due to long-time working, and the secondary heat exchange can be started at the moment. On the contrary, if the working time of the water-cooled heat exchanger is relatively short, the working efficiency of the water-cooled heat exchanger is generally considered not to be too low, so that the temperature is considered to be too high as an occasional phenomenon, and the phase change device is not required to be introduced for secondary heat exchange. According to the arrangement, the heat exchange efficiency of the water-cooling heat exchanger is doubly judged through the inlet temperature of the heater and the working time of the water-cooling heat exchanger, so that the control accuracy of the temperature is ensured.

In the above technical solution, the control method further includes: and when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, acquiring continuous working time length T2 of the phase change device, and when the T2 is greater than or equal to a sixth preset time length, radiating the heat of the phase change device.

In the technical scheme, when the liquid supply temperature is too high, the continuous working time length T2 of the phase change device can be further judged, if the working time length of the phase change device is too long, the multiplexing of the phase change material is not facilitated, and therefore the heat dissipation device can be started to conduct auxiliary heat dissipation, and the multiplexing of the phase change material is improved.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, the continuous working time length T3 of the phase change device is obtained, and when the T3 is larger than or equal to a seventh preset time length, the phase change device is subjected to heat dissipation, or an inlet of the shunt control device is controlled to be communicated with the first shunt branch.

In the technical scheme, when the working time of the phase change device is too long and the phase change material is unfavorable for multiplexing, the heat dissipation device is started to conduct auxiliary heat dissipation, and the multiplexing of the phase change material is improved.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the water yield A1 of the liquid treatment device in an eighth preset time period, and when the water yield A1 is larger than or equal to the first preset water yield, controlling the inlet of the diversion control device to be communicated with the second diversion branch so as to cool the phase change device; when the water yield A1 is smaller than the preset water yield, the inlet of the diversion control device is controlled to be communicated with the first diversion branch.

In the technical scheme, the fact that the water yield of the liquid device is more in a certain period of time is monitored, that is, the machine is in a continuous use state, the heat exchange efficiency of the water-cooled heat exchanger is predicted to be reduced, and in order to ensure the accuracy and precision of the temperature of the water discharged by the liquid device, the liquid is distributed to the phase change device, so that the efficiency utilization is maximized, and the stability and precision of the temperature of the water discharged by the liquid device are ensured.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, the water yield A2 of the liquid treatment device in a ninth preset time period is obtained, and when the water yield A2 is greater than or equal to a second preset water yield, the phase change device is subjected to heat dissipation.

In the technical scheme, the temperature detected by the first temperature detection device is greater than or equal to the first threshold value, heat exchange is performed through the phase change device at the moment, and if the water yield is found to be large at the moment, the reusability of the phase change device is low, so that the heat dissipation device can be started for assisting in heat dissipation, and the reusability of the phase change device is improved.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, calculating a first interruption time T4 of water outlet of the liquid treatment device in a tenth preset time, and when T4 is less than or equal to a first target time, radiating heat of the phase change device.

In the technical scheme, the first interruption time length of the water outlet in the fifth preset time length is obtained, the times N3 that the first interruption time length is smaller than the first target time length are calculated, if N3 is larger than the third preset times, the longer interruption time length is indicated to be more times, the water outlet is indicated to be slower, the lower heat exchange efficiency is indirectly reflected, and therefore the phase change device can be introduced to perform secondary heat exchange. Otherwise, the heat exchange efficiency is higher, and the phase change device is not required to be introduced for secondary heat exchange. This kind of setting carries out dual judgement through the time length of interruption of temperature and play water, has further ensured the demand of heat exchange efficiency for the accuse temperature is more accurate.

In the technical scheme, the temperature detected by the first temperature detection device is greater than or equal to the first threshold value, heat exchange is performed through the phase change device at the moment, if the interruption time of the water yield is found to be smaller at the moment, the phase change device is always in operation, and the heat dissipation device can be started to assist in heat dissipation so as to avoid the lower reusability of the phase change device, so that the reusability of the phase change device is improved, and the phenomenon of reduced efficiency of the phase change material caused by overlong working time of the phase change device is avoided.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, calculating a second interruption time T5 of water outlet of the liquid treatment device in an eleventh preset time, and controlling an inlet of the shunt control device to be communicated with a second shunt branch when T5 is larger than or equal to a second target time so as to cool through the phase change device, and when T5 is smaller than the second target time, radiating the phase change device.

In the technical scheme, the temperature detected by the first temperature detection device is smaller than or equal to a first threshold value, if the time of detecting that the interruption time of the water is smaller than the target time is too long, the time for pre-judging the multiplexing of the phase change materials in the phase change device is smaller, the use of the phase change device is reduced, and the power can be distributed to the water-cooling heat exchanger, so that the cooling effect is ensured on one hand, and the multiplexing of the phase change materials is facilitated on the other hand.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, the times N5 of third interruption time T6 of water outlet in the twelfth preset time period is less than or equal to a third target time period are calculated, and when the times N5 are greater than the third threshold value, an inlet of the shunt control device is controlled to be communicated with the first shunt branch, or the heat dissipation device is controlled to conduct heat dissipation on the phase change device.

In the technical scheme, the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, heat exchange is performed through the phase change device at the moment, if the time for detecting that the interruption time of water is less than the target time is excessive at the moment, the time for pre-judging the multiplexing of the phase change material in the phase change device is less at the moment, the use of the phase change device is reduced at the moment, the power can be distributed to the water-cooling heat exchanger, the cooling effect is guaranteed on one hand, and the multiplexing of the phase change material is facilitated on the other hand.

In the above technical solution, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, calculating the sum N6 of continuous times that the fourth interruption time T7 of water discharged by the liquid treatment device in the thirteenth preset time is less than or equal to a fourth target time, and when N6 is greater than the fourth threshold value, controlling the inlet of the diversion control device to be communicated with the first diversion branch, or controlling the heat dissipation device to dissipate heat of the phase change device.

In the technical scheme, the interruption time of water is judged, so that the efficiency utilization condition of the phase change device is prejudged, and when the interruption time is long, the efficiency of the phase change device can be utilized to the greatest extent, the service efficiency of the phase change device is improved, and the cooling effect is improved; when the interruption time is shorter, the phase change material reusability in the phase change device can be predicted to be poorer, and the heat dissipation device is started to dissipate heat of the phase change device, so that the use efficiency of the phase change device is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a liquid treatment apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a liquid treatment apparatus according to another embodiment of the present application;

FIG. 3 is a schematic view of a water-cooled heat exchanger of a liquid treatment apparatus according to an embodiment of the present application;

FIG. 4 is a schematic view of a liquid supply assembly of a liquid handling apparatus according to an embodiment of the present application;

fig. 5 is a flow chart of a control method of a liquid processing apparatus according to an embodiment of the present application.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 4 is:

the water heater comprises a heater body 1, a water-cooled heat exchanger 2, a first water channel 22, a second water channel 24, a heat exchange part 26, a phase change device 3, a liquid supply assembly 4, a liquid supply tank 42, a liquid supply channel 44, a pump body 46, a first temperature detection device 5, a water outlet assembly 6, a boiling water channel 7, a split control device 8, a first split branch 82, a second split branch 84 and a liquid storage tank 9.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

The liquid treatment apparatus provided by the present invention is described below with reference to fig. 1 to 4.

Example 1

As shown in fig. 1 to 4, an embodiment of a first aspect of the present invention provides a liquid treatment apparatus including: the device comprises a liquid supply assembly 4, a heater 1, a water-cooled heat exchanger 2, a shunt control device 8, a parameter monitoring device and a phase change device 3. The structure of the liquid supply assembly 4 is shown in fig. 4. The heater 1 is capable of heating a liquid flowing therethrough. The water-cooled heat exchanger 2 includes a first water channel 22, a second water channel 24, and a heat exchange portion 26, the heat exchange portion 26 is disposed between the first water channel 22 and the second water channel 24, the first water channel 22 and the second water channel 24 exchange heat through the heat exchange portion 26, and the second water channel 24 is connected to an outlet of the heater 1. The parameter monitoring device is used for monitoring parameters of the liquid treatment device, and the parameter monitoring device comprises a first temperature detecting device 5 (as shown in fig. 1 and 4), and is arranged corresponding to the outlet of the liquid supply assembly and/or the inlet of the first waterway, and is used for detecting the liquid temperature in the liquid supply assembly 4 and/or the liquid temperature of the inlet of the first waterway 22. The shunt control device 8 comprises an inlet of the shunt control device 8, a first shunt branch 82 and a second shunt branch 84, wherein the first shunt branch 82 and the second shunt branch 84 can be communicated with and disconnected from the inlet of the shunt control device 8, the inlet of the shunt control device 8 is connected with an outlet of the second waterway 24, and the shunt control device 8 is connected with the parameter monitoring device and is used for controlling the on-off between the inlet of the shunt control device and the first shunt branch 82 and the second shunt branch 84 according to the parameters of the parameter monitoring device. The phase change device 3 is connected to the second shunt branch 84, and is capable of performing heat exchange treatment on the liquid flowing out of the second shunt branch 84.

According to the technical scheme of the application, the liquid treatment device comprises: the device comprises a liquid supply assembly 4, a heater 1, a water-cooled heat exchanger 2, a shunt control device 8, a parameter monitoring device and a phase change device 3. The liquid supply unit 4 is used as a supply source of liquid such as water to supply the required liquid such as water to the heater 1 or the water-cooled heat exchanger 2. The water-cooled heat exchanger 2 includes a first water passage 22, a second water passage 24, and a heat exchanging portion 26, and the second water passage 24 is connected to an outlet of the heater 1. The phase change device 3 is connected with the outlet of the second waterway 24, the phase change device 3 comprises a phase change material, and when the liquid in the second waterway 24 passes through the phase change device 3, the phase change material exchanges heat with the liquid in the second waterway 24, so that the cooling or the cooling of the liquid in the second waterway 24 is realized. The parameter monitoring device includes a first temperature detecting device 5, where the first temperature detecting device 5 detects the temperature of the inlet of the liquid supply or the first waterway 22, and performs the shunt selection according to the temperature value, if the temperature in the liquid supply is too high, the parameter monitoring device must pass through the phase change device 3, so that the purpose is to supplement the low heat exchange efficiency of the water-cooled heat exchanger 2 caused by the too high temperature of the liquid supply, thereby improving the overall heat exchange efficiency of the liquid device, realizing small fluctuation and improving the accuracy of temperature control. Of course, the parameter monitoring device may also be used to monitor other parameters such as temperature, water flow, and duration, so as to determine whether to need to perform secondary cooling on the liquid in the second waterway 24 according to the monitored other parameters and in combination with the liquid supply temperature. That is, the present application preferably considers the influence of the liquid supply temperature when determining the flow direction of the water after heat exchange by the water-cooled heat exchanger 2 through the diversion control apparatus 8. Not just the temperature at the outlet of the heater 1. This is because the water-cooled heat exchanger 2 is greatly affected by the temperature of the liquid flowing into the outlet of the liquid supply assembly 4 or the first water path 22, that is, the temperature of the liquid in the outlet of the liquid supply assembly 4 or the first water path 22 will directly affect the heat exchanging effect of the water-cooled heat exchanger 2, or will directly determine the temperature of the heat exchanged liquid flowing out of the second water path 24. Therefore, the temperature of the outlet of the liquid supply assembly 4 and/or the inlet of the first waterway 22 is prioritized when determining whether to enable the heat exchange of the phase change device 3, so that the temperature can be controlled more accurately.

When the liquid supply temperature is greater than or equal to the first threshold value, the inlet of the diversion control apparatus 8 is controlled to be communicated with the second diversion branch 84 so as to cool through the phase change apparatus 3. Further, the first threshold is 30 ℃ to 37 ℃.

In this embodiment, the first threshold should be less than 37 ℃ and equal to or greater than 30 ℃. Because the water-cooled heat exchanger 2 adopts the liquid flowing out of the liquid supply assembly 4 to exchange heat the liquid flowing out of the heater 1, and the temperature flowing out of the heater 1 is the boiled water with the temperature of 100 ℃, the temperature detected by the temperature detection device directly influences the heat exchange effect of the water-cooled heat exchanger 2. If the first threshold is set to 35 ℃, when the temperature detected by the temperature detecting device is higher than the first threshold of 35 ℃, the temperature of the liquid flowing out of the second waterway 24 after heat exchange is predicted to be higher, and direct drinking cannot be satisfied, therefore, the liquid in the second waterway 24 needs to flow into the second shunt branch 84 and then into the phase change device 3, and the liquid is cooled for the second time, so that the liquid is discharged after reaching the proper temperature.

In addition, the liquid treatment device provided by the application can form a double heat exchange device through the water-cooling heat exchanger 2 and the phase change device 3, and can quickly cool boiled liquid to a required temperature. Compared with the cooling mode of only arranging the water-cooling heat exchanger 2, the cooling mode of the water-cooling heat exchanger 2 is directly reduced to 45 ℃ and needs longer heat exchange pipelines, and the heat exchange requirement of the water-cooling heat exchanger 2 is reduced by arranging the water-cooling heat exchanger 2 and the phase change device 3, so that the pipeline of the water-cooling heat exchanger 2 can be shortened, the water-cooling heat exchanger 2 with lower efficiency is selected, the volume of the water-cooling heat exchanger 2 can be reduced, the cost of the water-cooling heat exchanger 2 is reduced, and the whole volume of a product is smaller and the cost is lower. Meanwhile, the temperature is controlled through the phase change material, so that the temperature of the discharged water is kept near the phase change temperature, and the temperature of the discharged water is further controllable, and when the water-cooled heat exchanger 2 is independently used, the heat exchange temperature of the water-cooled heat exchanger 2 has a certain deviation due to the fact that the influence of the ambient temperature on the liquid temperature is large, and therefore the temperature of the discharged water of the single water-cooled heat exchanger 2 is not quite stable. Meanwhile, the single water-cooling heat exchange module is limited by the structural size and efficiency, boiled water cannot be cooled to below 50 ℃, and the outlet water temperature can be further reduced to be lower than 50 ℃ through the additional phase change device 3, so that the outlet water temperature of the device is more beneficial to people to drink. In addition, the boiling water and the normal temperature water temperature difference is large before the water convection heat exchange, so that the water cooling heat exchange efficiency is high; the phase change device 3 uses the characteristic that the phase change temperature of the phase change material is constant, and the efficiency of heat exchange at low temperature difference is higher than that of the water-cooled heat exchanger 2, so that the water-cooled heat exchanger 2 is arranged in front, and the temperature reduction efficiency can be further improved by the combination of the phase change device 3 arranged behind. And further, through setting up parameter detection device and reposition of redundant personnel controlling means 8 can confirm the heat exchange efficiency of water-cooling heat exchanger 2 based on temperature etc. before the water-cooling heat exchanger 2, so can confirm whether the hot water after the water-cooling heat transfer needs further to carry out the secondary cooling through phase change device 3 based on the heat exchange efficiency of water-cooling heat exchanger 2, just so can reduce the influence of liquid supply temperature, make the liquid temperature of output more controllable, stable, avoid because the liquid supply temperature is too low, and lead to boiled water or drink to be excessively cooled, also can avoid leading to the cooling inadequately because the heat exchange efficiency of water-cooling heat exchanger 2 is too low that the liquid supply temperature is higher, and then lead to unable output user required temperature.

The device can be applied to a discontinuous drinking water system, and can rapidly cool boiled water in a heat storage and environmental heat dissipation mode by using the phase change material, and the device has the characteristics of no extra energy consumption, simple structure, high efficiency, reusability and the like in the cooling process, and has very good market application prospect and value.

The phase-change cooling module has the characteristic of quickly absorbing a large amount of heat energy at constant temperature, the heat of high-temperature hot water can be quickly stored in the phase-change material component, the temperature of the phase-change material is not higher than a phase-change temperature point, and further the continuous proceeding of the heat exchange process is ensured until the temperature of the hot water is balanced with the temperature of the phase-change material. The phase change material is solid-liquid phase change material, the phase change temperature is between 40 ℃ and 45 ℃, such as paraffin composite phase change material, synthetic salt material and the like.

In the above technical solution, the parameter monitoring device includes: second temperature detecting means (not shown) for detecting the temperature of the liquid at the outlet of the second waterway, and/or the temperature of the liquid at the inlet of the shunt control means, and/or the temperature of the inlet of the heater.

In this technical scheme, parameter monitoring device includes second temperature-detecting device, and the temperature setting that second temperature-detecting device can monitor as required is in corresponding position. For example, the temperature after heat exchange of the water-cooled heat exchanger 2 can be detected by being arranged at the inlet of the diversion control device 8 and/or the outlet of the second waterway 24. For another example, the device can be arranged at the inlet of the heater 1 to detect the temperature of the inlet of the heater 1, so as to judge the fluctuation of the inlet liquid temperature or the efficiency of the water-cooled heat exchanger 2. By detecting the inlet temperature of the heater 1, the outlet water temperature of the water-cooled heat exchanger 2 or fluctuation of the outlet water temperature can be prejudged, if the inlet temperature of the heater 1 is higher, the cooling efficiency of the water-cooled heat exchanger 2 is prejudged to be lower at the moment, and the water outlet water temperature stability and precision of the liquid treatment device are guaranteed by shunting to the phase change device 3, and the full utilization of the efficiency of the water-cooled heat exchanger 2 and the phase change device 3 is realized. Specifically, when the second temperature detecting device detects that the temperature is low, the boiled water can be cooled to a temperature suitable for drinking only through the water-cooled heat exchanger 2, and the hot water after heat exchange of the cold heat exchanger is directly output through the first split branch 82, so that excessive cooling is avoided. When the second temperature detecting device detects that the temperature is higher, the boiled water cannot be cooled to a temperature suitable for drinking only by the water-cooling heat exchanger 2. Therefore, the diversion control device 8 can be controlled to enable the phase-change device 3 to be connected into the waterway, so that the liquid subjected to heat exchange by the water-cooling heat exchanger 2 flows into the second diversion branch 84 from the second waterway 24 and enters the phase-change device 3, and the liquid in the second diversion branch 84 is subjected to secondary cooling.

In the above-mentioned technical solution, the second temperature detecting device is used for the liquid temperature at the outlet of the second waterway 24, and/or the liquid temperature at the inlet of the diversion control device 8; the shunt control device 8 is connected to the second temperature detecting device, and can control the inlet of the shunt control device 8 to be connected to the second shunt branch 84 when the temperature detected by the second temperature detecting device is greater than or equal to a second threshold, such as a second temperature value or a second preset temperature range, and control the inlet of the shunt control device 8 to be disconnected from the second shunt branch 84 when the temperature detected by the second temperature detecting device is less than the second temperature value or less than the second preset temperature range.

In this embodiment, the shunt control device 8 is connected to the second temperature detection device to control the conduction of the circuit inside the shunt control device 8 according to the temperature. The second temperature detecting device is disposed at the outlet of the second water path 24, and/or the inlet of the diversion control device 8 is used for monitoring the cooling effect of the heat exchanger, if the temperature of the liquid at the outlet of the second water path 24, and/or the temperature of the liquid at the inlet of the diversion control device 8 is too high, this indicates that the heat exchanging effect of the heat exchanger is poor, so that the temperature of the water coming out of the second water path 24 will be relatively high, or the temperature fluctuation will be relatively large, so that at this time, the controller can control the inlet of the diversion control device 8 to be conducted with the second diversion branch 84, so that the liquid in the second water path 24 flows into the second diversion branch 84, and then flows into the phase change device 3, so that the liquid is cooled for the second time, and is discharged after reaching the proper temperature. Conversely, if the temperature of the liquid at the outlet of the second water path 24 and/or the temperature of the liquid at the inlet of the diversion control apparatus 8 is not too high, the heat exchange effect of the heat exchanger is better, so that the temperature of the water coming out of the second water path 24 is lower, or the temperature fluctuation is smaller, and therefore, the controller can control the inlet of the diversion control apparatus 8 to be in communication with the first diversion branch 82, so that the liquid in the second water path 24 is directly discharged without passing through the phase change apparatus 3.

Further, the second temperature value is 50 ℃ or higher and 60 ℃ or lower.

In the technical scheme, the second preset temperature range is less than 60 ℃ and more than or equal to 50 ℃. Because the water-cooled heat exchanger 2 uses the liquid flowing out of the liquid supply assembly 4 to exchange heat the liquid flowing out of the heater 1, and the temperature flowing out of the heater 1 is always boiled water at 100 ℃, the temperature detected by the second temperature detecting device directly influences the heat exchange effect of the water-cooled heat exchanger 2. If the first preset threshold is set to 50 ℃, when the temperature of the liquid detected by the second temperature detecting device is higher than the first preset threshold of 50 ℃, it is indicated that the temperature of the liquid flowing out of the second waterway 24 after heat exchange is higher, and direct drinking cannot be satisfied, so that the liquid in the second waterway 24 needs to flow into the second shunt branch 84 and then into the phase-change device 3, and the liquid is cooled for the second time, so that the liquid is discharged after reaching the proper temperature. When the temperature of the liquid detected by the second temperature detecting device is lower than the first preset threshold value by 50 ℃, the water-cooled heat exchanger 2 can exchange heat of the liquid flowing out of the second waterway 24 to an appropriate temperature, so that the user can drink the liquid directly.

In the above technical solution, the second temperature detecting device is configured to detect a temperature of an outlet of the second waterway 24 or a liquid temperature W2 of an inlet of the shunt control device, and when W2 is greater than or equal to a preset temperature threshold, control the inlet of the shunt control device to be communicated with the second shunt branch; the outlet water setting temperature of the liquid treatment device is W0, when the absolute value of W2-W0 is larger than or equal to a third temperature value or a third preset temperature range, the inlet of the diversion control device 8 is communicated with the second diversion branch 84, and when the absolute value of W2-W0 is smaller than the third temperature value or the third preset temperature range, the inlet of the diversion control device 8 is disconnected with the second diversion branch 84; or the shunt control device 8 is configured to control the inlet of the shunt control device 8 to be connected to the second shunt branch 84 when the temperature W2 detected by the second temperature detection device is greater than or equal to a fourth temperature value or a fourth preset temperature range, and to control the inlet of the shunt control device 8 to be disconnected from the second shunt branch 84 when the temperature W2 detected by the second temperature detection device is less than the fourth temperature value or the fourth preset temperature range.

In this embodiment, it is possible to determine whether or not to perform heat exchange through the phase change device 3 based on the liquid temperature W2 at the inlet of the diversion control device at the outlet of the second waterway 24. That is, the second temperature detecting means is used for judging whether the temperature of the outlet of the second waterway 24 or the inlet of the diversion control means is too high, and if so, the phase change means 3 is needed to pass through. Too low does not pass through the phase change means 3. For example, when the water outlet set temperature of the liquid treatment device is W0 and |w2-w0| is greater than or equal to a third temperature value or a third preset temperature range, the set temperature is greatly different from the temperature after the first heat exchange, so that the water is required to undergo phase change heat exchange, otherwise, the water is directly discharged without undergoing phase change heat exchange. Of course, a fourth temperature value or a fourth preset temperature range may be set to determine whether the temperature W2 at the outlet of the second waterway 24 or the inlet of the shunt control device is too high, thereby determining whether it is required to pass through the phase change device 3. Further, the third temperature value is 4 ℃, 5 ℃ or 7 ℃. Because the difference threshold value of the I W2-W0I is smaller than 7 ℃, the water outlet temperature reaches the preset water outlet temperature fluctuation range at the moment, the phase change module is not required to be cooled for the second time, the multiplexing of the phase change material is promoted, the utilization efficiency of the phase change material is improved, and the technical effects of cooling and stabilizing the temperature of the phase change device 3 are ensured. In another aspect, when the temperature of the liquid in the second water path 24 and/or the temperature of the liquid at the inlet of the diversion control apparatus 8 is greater than or equal to a fifth threshold, such as a fifth temperature value or a fifth preset temperature range, it is indicated that the temperature of the liquid flowing out of the second water path 24 after the first heat exchange is higher and cannot satisfy the direct drinking, so that the liquid in the second water path 24 needs to flow into the second diversion branch 84 and then into the phase change device 3 to perform the secondary cooling of the liquid.

Wherein the fifth temperature value or the fifth preset temperature range is more than or equal to 50 ℃ and less than or equal to 60 ℃. Because the water-cooled heat exchanger 2 uses the liquid flowing out of the liquid supply assembly 4 to exchange heat the liquid flowing out of the heater 1, and the temperature flowing out of the heater 1 is always boiled water at 100 ℃, the temperature detected by the second temperature detecting device directly influences the heat exchange effect of the water-cooled heat exchanger 2. If the fifth temperature value is set to 50 ℃, when the temperature of the liquid detected by the second temperature detecting device is higher than the fifth temperature value by 50 ℃, it is indicated that the temperature of the liquid flowing out of the second waterway 24 after heat exchange is higher, and direct drinking cannot be satisfied, so that the liquid in the second waterway 24 needs to flow into the second shunt branch 84 and then into the phase-change device 3, and the liquid is cooled for the second time, so that the liquid is discharged after reaching the proper temperature. When the temperature of the liquid detected by the second temperature detecting device is lower than the fifth temperature value by 50 ℃, the water-cooled heat exchanger 2 can exchange heat of the liquid flowing out of the second waterway 24 to an appropriate temperature, so that the liquid can be directly drunk by a user.

In the above technical solution, the parameter monitoring device further includes: the duration detection device is used for detecting the continuous working duration of the water-cooled heat exchanger 2 and/or the continuous working duration of the phase change device 3 and/or detecting the intermittent duration T3 of water outlet of the liquid treatment device within a first preset duration; counting means for counting the number of times N1 of the first preset time period in which the inlet temperature of the heater 1 is equal to or higher than the second threshold value, for counting the number of consecutive times N2 of the second preset time period in which the inlet temperature of the heater 1 is equal to or higher than the second threshold value, for counting the number of times N3 of the outlet liquid temperature of the second waterway 24, and/or the number of times N3 of the inlet liquid temperature of the shunt control means 8 is equal to or higher than the third threshold value, for counting the number of times in the fourth preset time period in which the outlet liquid temperature of the second waterway 24, and/or the number of consecutive times N4 of the inlet liquid temperature of the shunt control means 8 is equal to or higher than the third threshold value, and/or the number of times N6 of consecutive times of the outlet water of the liquid treatment means in the tenth preset time period and/or the eleventh preset time period in which the third duration T6 of outlet water in the twelfth preset time period is equal to or lower than the third target time period, and/or counting the number of times N6 of consecutive times of the outlet water of the liquid treatment means in the thirteenth preset time period in which the fourth duration T7 of outlet water of the water is equal to or lower than the fourth target time period; the flow detection device is used for detecting the water yield of the liquid treatment device; the shunt control device 8 is specifically configured to control on-off between the inlet of the shunt control device 8 and the first shunt branch 82 and the second shunt branch 84 according to parameters monitored by at least one of the second temperature detection device, the duration detection device, the counting device, and the flow detection device when the temperature detected by the first temperature detection device 5 is less than the first threshold.

In the technical scheme, the parameter monitoring device further comprises a duration detection device, a flow detection device, a timing device and the like, and is used for monitoring duration, flow, times and the like. The device can monitor whether the phase change device 3 is required to perform secondary heat exchange in a continuous working time of the water-cooled heat exchanger 2, water yield of the water outlet within a certain time, or water interruption time of the water outlet for interrupting water yielding within a certain time and the like. Of course, it is also possible to combine the temperature and the parameter monitored by the second monitoring device together to determine whether the phase change device 3 is required to perform the secondary heat exchange. That is, the judging mode of whether the phase change device 3 needs to perform the secondary heat exchange is various, and the method can be set according to actual needs. For example, in a certain time, the sum of times that the interruption time length of water outlet of the water outlet is smaller than a threshold value in a certain time is larger than a preset value; or the sum of the continuous times of which the interruption time length is smaller than the threshold value is larger than the preset value, the phase change device 3 is considered to be required to perform secondary heat exchange.

Wherein the total heat exchange power of the liquid treatment device is P, the heat exchange power of the water-cooled heat exchanger 2 is P1, the heat exchange power of the phase change device 3 is P2, P1= (0.5-0.7) P, and/or P2= (0.1-0.4) P. I.e. the proportion of the allocated power P1 of the water-cooled heat exchanger 2 to the total power P is 0.5-0.7. The proportion of the power P2 allocated by the phase change means 3 to the total power P is 0.1-0.4. Further, the power duty cycle of the phase change device 3 is 0.2-0.31. And through the cooperation of the power ratio of the two, the high temperature difference of the water-cooling heat exchanger 2 can be fully utilized, the efficiency of water-cooling heat exchange is improved, and meanwhile, the high heat exchange efficiency of the phase change device 3 can be fully utilized when the temperature difference is low. Through the optimal configuration of the power, higher cooling efficiency can be realized. Meanwhile, the power distribution makes full use of the heat exchange efficiency of the water-cooling heat exchanger 2 and the phase change device 3, namely the heat exchange efficiency of the water-cooling heat exchanger and the phase change device 3, and enables the water outlet flow of the liquid treatment device to keep higher flow in unit time; thirdly, the volumes of the water-cooling heat exchanger 2 and the phase change device 3 can be matched, because the water-cooling heat exchanger 2 needs a larger volume if the water-cooling heat exchanger is provided with higher power to achieve higher heat exchange efficiency, and the phase change device 3 with a larger volume is provided with smaller power; if the phase change device 3 is set with higher power to achieve higher heat exchange efficiency, a larger volume is required, and if the power of the phase change device 3 is lower, a larger volume of the water-cooled heat exchanger 2 is required. The liquid treatment device has the advantages that the whole volume of the liquid treatment device is increased, the miniaturization of the device is not utilized, the power phase of the liquid treatment device and the power phase of the liquid treatment device are adapted, the volume phase of the liquid treatment device and the power phase of the liquid treatment device are adapted, the whole heat exchange efficiency of the liquid treatment device can be ensured, the accurate control of the temperature is realized, the fluctuation of the temperature is reduced, the volume of the liquid treatment device can be ensured not to be too large, the table top is convenient to place, the excessive space is not occupied, and the user experience is improved.

Further, the temperature difference between the inlet temperature and the outlet temperature of the water-cooled heat exchanger 2 is not less than 55 ℃ and not less than 40 ℃. Further, the temperature difference between the inlet temperature and the outlet temperature of the phase change device 3 is 20 ℃ or less and 10 ℃ or more. This arrangement enables the power of the respective heat exchanger to be defined by temperature control of the outlet and inlet of the two heat exchangers, whereby the heat exchange efficiency of the two heat exchangers can be defined, thereby achieving a power split between the water-cooled heat exchanger 2 and the phase change device 3. Thus, the accuracy of the phase change device 3 for temperature control can be improved, and the size of the phase change device 3 can be reduced, contributing to miniaturization of the liquid processing apparatus. In addition, the arrangement is also favorable for the cooperative temperature control function between the water-cooling heat exchanger 2 and the phase-change device 3, improves the accuracy of the water outlet temperature of the liquid treatment device, and improves the cooperative cooperation of the heat exchange efficiency of the water-cooling heat exchanger 2 and the phase-change device 3, and the water-cooling heat exchanger 2 and the phase-change device 3 can achieve the maximization of efficiency. The temperature difference of the water-cooling heat exchanger 2 is set to be between 40 and 55 ℃, so that the realization of the efficiency of the water-cooling heat exchanger 2 is ensured, the temperature difference of the phase change device 3 is set to be between 10 and 20 ℃, the small-range correction of the temperature can be further performed on the basis of ensuring the full realization of the efficiency of the water-cooling heat exchanger 2, the temperature difference range is small at the moment, the fluctuation of the corrected temperature can be reduced, and meanwhile, the efficiency of the phase change device 3 can be fully realized.

Further, the outlet water temperature of the phase change device 3 is more than or equal to 30 ℃ and less than or equal to 50 ℃. Further, the outlet water temperature of the phase change device 3 is more than or equal to 40 ℃ and less than or equal to 50 ℃.

Further, the liquid treatment device comprises a water outlet assembly 6, and the water outlet flow rate of the water outlet assembly 6 is less than or equal to 7.5g/s. The arrangement can limit heating requirements and ensure heating efficiency, so that the cooperation of the phase change device 3 and the water-cooling heat exchanger 2 can meet heat exchange requirements, and temperature fluctuation can be reduced, so that accurate control of temperature is realized.

Further, the phase change temperature of the phase change material in the phase change device 3 has a preset difference between the phase change temperature of the phase change material and the water outlet temperature of the second waterway 24. The water discharged from the second waterway 24 can induce the phase change of the phase change material by the preset temperature difference, so that the phase change material can be subjected to the phase change, and the control of the temperature of the water output from the second waterway 24 is completed.

Further, the absolute value of the preset temperature difference is 20 ℃ or less, or the absolute value of the preset temperature difference is 10 ℃ or less. The arrangement can improve the utilization rate of the phase change material, reduce the power consumption of the phase change device 3, improve the heating efficiency, improve the temperature stabilizing effect of the phase change device 3, reduce the volume of the phase change device 3 and promote the miniaturization of the whole structure. Of course, this arrangement can also avoid too large a temperature difference, which results in that the phase change device 3 cannot meet the corresponding heat exchange requirement, and also avoid too low a temperature, which cannot cause phase change, so that the phase change device 3 does not work. Therefore, the heat exchange effect is ensured, the high flow rate and the continuous stability of the outlet water temperature are ensured, and the experience of a user is further improved.

In any of the above-mentioned embodiments, in the preset period, the temperature variation value of the outlet water temperature of the second water path 24 is a, and in the preset period, the temperature variation value of the outlet water temperature of the phase change device 3 is b, a-b >1.5 ℃. Further, a-b >3 ℃, i.e. when both the heat exchanger and the phase change device 3 have deviations in the outlet water temperature, the deviation in the outlet water temperature of the heat exchanger should be larger. That is, in the same period of time, the temperature variation value a of the outlet water temperature of the second water path 24 is larger than the temperature variation value b of the outlet water temperature of the phase change device 3, that is, the outlet water temperature of the second water path 24 fluctuates more, and the outlet water temperature of the first heat exchange period fluctuates less.

In the technical scheme, a-b is higher than 1.5 ℃, and further, a-b is higher than 3 ℃, so that on one hand, the power consumption of the phase change material is reduced, the power effect of the heating module can be ensured, and the heating efficiency is improved; on the other hand, the utilization rate of the phase change material can be improved, and the temperature stabilizing effect of the phase change device 3 can be improved; finally, the volume of the phase change device 3 is reduced, and the miniaturization of the whole structure is promoted.

Further, the total heat exchange amount of the phase change device 3 is 25KJ or more. The arrangement can ensure the heat exchange efficiency of the phase change device 3, reduce temperature fluctuation and realize accurate control of temperature. The total heat exchange amount is more than or equal to 25KJ, so that the phase change device 3 has the function of stabilizing the temperature.

Further, the phase change device 3 includes a phase change material including paraffin, and the content of the phase change material is 110g or more. The arrangement can ensure the heat exchange efficiency of the phase change device 3, reduce temperature fluctuation and realize accurate control of temperature. The content of the phase change material being equal to or higher than 110g ensures that the phase change device 3 has a temperature stabilizing effect.

According to the application, the optimal heat exchange interval of the water-cooled heat exchanger 2 is the interval of cooling boiled water at 100 ℃ to 45-60 ℃. The heat exchange efficiency is lower below the temperature interval, and the water convection heat exchange has a great cost advantage above the temperature interval. And the phase change device 3 can exchange heat at the tail end, so that the heat exchange efficiency is improved.

Further, the absolute value of the difference between the water outlet temperature of the phase change device 3 and the target temperature is smaller than a preset temperature value, and the preset temperature value is larger than or equal to 0 ℃ and smaller than or equal to 7 ℃.

In the technical scheme, the absolute value of the difference between the water outlet temperature of the phase change device 3 and the target temperature is smaller than a preset temperature value, the preset temperature value is larger than or equal to 0 ℃ and smaller than or equal to 7 ℃, namely, the difference between the temperature of the output water after temperature control of the phase change device 3 and the ideal temperature is smaller than 7 ℃, so that the stability of the water outlet temperature is improved. The arrangement ensures that the temperature fluctuation of the output water of the phase change device 3 is moderate and is overlarge, thereby controlling the temperature fluctuation, avoiding overlarge temperature fluctuation, reducing the higher requirement on the phase change device 3 caused by overlarge precision requirement and reducing the cost of the phase change device 3. The outlet water temperature may be higher than the target temperature or lower than the target temperature. The target temperature is the desired temperature that needs to be output by the phase change device 3, which is related to the target temperature of the water that the user desires. For example, in general, the liquid treatment apparatus presets a target outlet temperature, for example, the liquid treatment apparatus sets several temperature steps for a user to select, so as to determine the target temperature of water flowing out from the outlet of the liquid treatment apparatus, after the user selects the corresponding temperature step, the target outlet temperature is determined, and after the target outlet temperature is determined, the target temperature of the phase change apparatus 3 is correspondingly determined.

In general, the maximum heating power of a conventional small-sized household electrical appliance is 2300W, and 7.35g/s of pure water can be heated from room temperature of 25 ℃ to boiling. In order to ensure that all the effluent is boiled for sterilization, the maximum flow of the liquid treatment device is not more than 7.5g/s; the actual outlet water temperature is 50-60 ℃ when the heat exchange power of the water-cooling heat exchanger 2 in the fluctuation range of room temperature is 1540-1240W. The phase change device 3 can cool the temperature of 55+/-5 ℃ to 40+/-3 ℃, and the heat exchange power of the phase change device 3 is 210W-710W.

The temperature in the liquid supply tank 42 is high, so that the efficiency of the heat exchange portion 26 of the water-cooled heat exchanger 2 is low, the phase change device 3 needs to provide higher cooling efficiency, and the consumption of the phase change material is faster; the heat exchange power is 700W, so that normal drinking habit is met, continuous water outlet is needed to be carried out for not less than 35 seconds, and the total heat exchange amount of the phase change material is not less than 25kJ; the phase change material with the temperature of 40 ℃ is usually phase change paraffin wax, and the heat storage density is about 200J/g-240J/g, so the total filling amount is not less than 110g. The water outlet temperature of the water cooling module is higher than the temperature of the phase change material, so that the phase change material is consumed as little as possible on the premise that the phase change material can generate phase change, and the cooling effect for a longer time is realized.

Example two

As shown in fig. 1 and 4, a second embodiment of the first aspect of the present application provides a liquid processing apparatus, including: the liquid supply assembly 4, the heater 1, the water-cooled heat exchanger 2, the shunt control device 8 and the phase change device. Wherein the heater 1 is capable of heating a liquid flowing therethrough; the water-cooled heat exchanger 2 comprises a first water channel 22, a second water channel 24 and a heat exchange part 26, wherein the heat exchange part 26 is arranged between the first water channel 22 and the second water channel 24, the first water channel 22 and the second water channel 24 exchange heat through the heat exchange part 26, and the second water channel 24 is connected with an outlet of the heater 1; the diversion control device 8 comprises a diversion control device inlet and a first diversion branch 82 and a second diversion branch 84 which can be communicated with and disconnected from the diversion control device inlet, and the diversion control device inlet is connected with the outlet of the second waterway 24; a first temperature detecting device 5, disposed corresponding to the outlet of the liquid supply assembly 4 and/or the inlet of the first water channel 22, for detecting the temperature of the outlet of the liquid supply assembly 4 and/or the inlet of the first water channel 22; the phase change device 3, the phase change device 3 is connected with the second branch 84, and can perform heat exchange treatment on the liquid flowing out of the second branch 84.

According to an embodiment of the present application, there is provided a liquid treatment apparatus including: the liquid supply assembly 4, the heater 1, the water-cooled heat exchanger 2, the shunt control device 8, the first temperature detection device 5 and the phase change device 3. The liquid supply unit 4 is used as a supply source of liquid such as water to supply the required liquid such as water to the heater 1 or the water-cooled heat exchanger 2. The water-cooled heat exchanger 2 includes a first water passage 22, a second water passage 24, and a heat exchanging portion 26, and the second water passage 24 is connected to an outlet of the heater 1. The phase change device 3 is connected with the outlet of the second waterway 24, the phase change device 3 comprises a phase change material, and when the liquid in the second waterway 24 passes through the phase change device 3, the phase change material exchanges heat with the liquid in the second waterway 24, so that the cooling or the cooling of the liquid in the second waterway 24 is realized. The first temperature detecting device 5 can obtain the temperature of the liquid flowing into the first water channel 22, and since the water-cooled heat exchanger 2 is greatly affected by the temperature of the liquid flowing into the first water channel 22, that is, the temperature of the liquid in the first water channel 22 will directly affect the heat exchange effect of the water-cooled heat exchanger 2, or will directly determine the temperature of the heat exchanged liquid flowing out of the second water channel 24. Therefore, the first temperature detection device 5 is provided to determine the water channel flow direction of the water-cooled heat exchanger 2. Specifically, when the first temperature detecting device 5 detects that the temperature is low, the boiled water can be cooled to a temperature suitable for drinking only through the water-cooled heat exchanger 2, and the hot water after heat exchange of the cold heat exchanger is directly output through the first split branch 82, so that excessive cooling is avoided. When the first temperature detecting means 5 detects a higher temperature, the boiled water cannot be cooled to a temperature suitable for drinking only by the water-cooled heat exchanger 2. Therefore, the diversion control device 8 can be controlled to enable the phase-change device 3 to be connected into the waterway, so that the liquid subjected to heat exchange by the water-cooling heat exchanger 2 flows into the second diversion branch 84 from the second waterway 24 and enters the phase-change device 3, and the liquid in the second diversion branch 84 is subjected to secondary cooling. The arrangement can form a double heat exchange device through the water-cooling heat exchanger 2 and the phase change device 3, and can quickly cool boiling liquid to a required temperature. Compared with the cooling mode of only arranging the water-cooling heat exchanger 2, the cooling mode of the water-cooling heat exchanger 2 is directly reduced to 45 ℃ and needs longer heat exchange pipelines, and the heat exchange requirement of the water-cooling heat exchanger 2 is reduced by arranging the water-cooling heat exchanger 2 and the phase change device 3, so that the pipeline of the water-cooling heat exchanger 2 can be shortened, the water-cooling heat exchanger 2 with lower efficiency is selected, the volume of the water-cooling heat exchanger 2 can be reduced, the cost of the water-cooling heat exchanger 2 is reduced, and the whole volume of a product is smaller and the cost is lower. Meanwhile, the temperature is controlled through the phase change material, so that the temperature of the discharged water is kept near the phase change temperature, and the temperature of the discharged water is further controllable, and when the water-cooled heat exchanger 2 is independently used, the heat exchange temperature of the water-cooled heat exchanger 2 has a certain deviation due to the fact that the influence of the ambient temperature on the liquid temperature is large, and therefore the temperature of the discharged water of the single water-cooled heat exchanger 2 is not quite stable. Meanwhile, the single water-cooling heat exchange module is limited by the structural size and efficiency, boiled water cannot be cooled to below 50 ℃, and the outlet water temperature can be further reduced to be lower than 50 ℃ through the additional phase change device 3, so that the outlet water temperature of the device is more beneficial to people to drink. In addition, the boiling water and the normal temperature water temperature difference is large before the water convection heat exchange, so that the water cooling heat exchange efficiency is high; the phase change device 3 uses the characteristic that the phase change temperature of the phase change material is constant, and the efficiency of heat exchange at low temperature difference is higher than that of the water-cooled heat exchanger 2, so that the water-cooled heat exchanger 2 is arranged in front, and the temperature reduction efficiency can be further improved by the combination of the phase change device 3 arranged behind. And further, through setting up first temperature-detecting device 5 and reposition of redundant personnel controlling means 8 can confirm the heat exchange efficiency of water-cooling heat exchanger 2 based on the temperature before the water-cooling heat exchanger 2, so can confirm whether the hot water after the water-cooling heat transfer needs further to carry out the secondary cooling through phase change device 3 based on the heat exchange efficiency of water-cooling heat exchanger 2, just so can reduce the influence of feed liquid temperature, make the liquid temperature of output more controllable, stable, avoid because feed liquid temperature is too low, and lead to boiled water or drink to be excessively cooled, also can avoid leading to the cooling inadequately because the heat exchange efficiency of water-cooling heat exchanger 2 is too low that the feed liquid temperature is higher, and then lead to unable output the required temperature of user.

The device can be applied to a discontinuous drinking water system, and can rapidly cool boiled water in a heat storage and environmental heat dissipation mode by using the phase change material, and the device has the characteristics of no extra energy consumption, simple structure, high efficiency, reusability and the like in the cooling process, and has very good market application prospect and value.

The phase-change cooling module has the characteristic of quickly absorbing a large amount of heat energy at constant temperature, the heat of high-temperature hot water can be quickly stored in the phase-change material component, the temperature of the phase-change material is not higher than a phase-change temperature point, and further the continuous proceeding of the heat exchange process is ensured until the temperature of the hot water is balanced with the temperature of the phase-change material. The phase change material is solid-liquid phase change material, the phase change temperature is between 40 ℃ and 45 ℃, such as paraffin composite phase change material, synthetic salt material and the like.

In general, the maximum heating power of a conventional small-sized household electrical appliance is 2300W, and 7.35g/s of pure water can be heated from room temperature of 25 ℃ to boiling. In order to ensure that all the effluent is boiled for sterilization, the maximum flow of the liquid treatment device is not more than 7.5g/s; the actual outlet water temperature is 50-60 ℃ when the heat exchange power of the water-cooling heat exchanger 2 in the fluctuation range of room temperature is 1540-1240W. The phase change device 3 can cool the temperature of 55+/-5 ℃ to 40+/-3 ℃, and the heat exchange power of the phase change device 3 is 210W-710W.

The temperature in the liquid supply tank 42 is high, so that the efficiency of the heat exchange portion 26 of the water-cooled heat exchanger 2 is low, the phase change device 3 needs to provide higher cooling efficiency, and the consumption of the phase change material is faster; if the heat exchange power is 700W, the normal drinking habit is met, and continuous water outlet is needed to be carried out for not less than 35 seconds, the total heat exchange amount of the phase change material is not less than 25kJ; the phase change material with the temperature of 40 ℃ is usually phase change paraffin wax, the heat storage density is about 200J/g-240J/g, and the total filling amount is not less than 110g.

The water outlet temperature of the water cooling module is higher than the temperature of the phase change material, so that the phase change material is consumed as little as possible on the premise that the phase change material can generate phase change, and the cooling effect for a longer time is realized.

According to the application, the optimal heat exchange interval of the water-cooled heat exchanger 2 is the interval of cooling boiled water at 100 ℃ to 45-60 ℃. The heat exchange efficiency is lower below the temperature interval, and the water convection heat exchange has a great cost advantage above the temperature interval. And the phase change device 3 can exchange heat at the tail end, so that the heat exchange efficiency is improved.

Further, as shown in fig. 1, the split control device 8 includes a split valve, which is a three-way valve.

In this embodiment, the diversion control apparatus 8 includes a diversion valve, which is configured as a three-way valve, and the three-way valve connects the second waterway 24 with the first diversion branch 82 and the second diversion branch 84, respectively.

In the above embodiment, the outlet of the first water path 22 is connected to the inlet of the heater 1, and the liquid flowing through the first water path 22 enters the heater 1 to be heated and then enters the second water path 24.

In this embodiment, the outlet of the first waterway 22 is connected to the inlet of the heater 1. That is, the water of the first water path 22, which exchanges heat with the heated liquid, is directly supplied to the heater 1, and then heated by the heater 1 and then outputted. Through this kind of setting, can carry out reuse to the hot water in the first water route 22 to this has avoided the waste of heat, has improved the heating efficiency of whole product. Meanwhile, the first water path 22 can be directly connected with the liquid supply devices such as the liquid supply pipe, the liquid supply tank 42 and the like, so that the liquid supply device, the first water path 22 and the heater 1 are connected in series.

Further, as shown in fig. 1 and 3, the inlet of the heater 1 is connected to only the first water path 22, that is, the water in the heater 1 is entirely from the first water path 22. In another embodiment, the inlet of the heater 1 is connected to the first water path 22 and the liquid supply device simultaneously, i.e. two branches can supply water to the heater 1 simultaneously.

In the above embodiment, as shown in fig. 1 and 2, the phase change device 3 further includes: a housing; the phase change channel is arranged in the shell or wound outside the shell and is connected with the outlet of the second waterway 24; the phase change material is arranged in the shell, and the phase change channel can exchange heat with liquid in the phase change channel during phase change; the phase-change channel and the second waterway 24 are of an integral structure, or the phase-change channel and the second waterway 24 can be detachably connected, the phase-change channel and the shell can be detachably connected, or the phase-change channel and the shell are assembled into an integral structure.

In this embodiment, the phase change device 3 comprises a housing, a phase change material and a phase change channel. The phase change channel can be arranged in the shell, and is in an integral structure or a detachable structure with the shell. The phase change channel may alternatively be a tube wound around the outside of the housing. Further, the phase change channel and the second waterway 24 may be connected to form a pipe, and the phase change material and the housing are assembled to be a single body. Of course, the phase change channel and the second waterway 24 may be detachably connected. That is, in the present application, the phase change channel may be integrally formed with the phase change material and the housing, and the phase change channel may be independent of the phase change material and the housing. And when the phase change channel exists independently, it may be connected with the second waterway 24 to form a unitary structure or a split structure. I.e. the structure of the phase change device 3, can be arranged in a wide variety of ways according to the actual needs. But most preferably the housing, phase change material and phase change channel are assembled as a unit and then removably connected to the second waterway 24. Further, the liquid treatment apparatus further comprises a liquid supply device for supplying water.

The phase change device 3 comprises a phase change channel and a phase change heat storage component formed by phase change materials. The phase change channel has a row-type or pipe-type structure, can effectively increase water flow formation, prolong heat exchange time, realize rapid cooling of boiled water, and can reach 40 ℃ at the minimum.

Further, as shown in fig. 1 and 2, the liquid supply assembly 4 includes: a liquid supply tank 42 and a liquid supply channel 44, wherein the outlet of the liquid supply channel 44 is connected with the inlet of the heater 1 and the cooling pipeline; wherein, the inlet of the liquid supply channel 44 is connected with an external water source, or the liquid supply device also comprises a liquid supply box 42, and the inlet of the liquid supply channel 44 is connected with the liquid supply box 42.

In this embodiment, the liquid supply assembly 4 includes a liquid supply tank 42 and a liquid supply channel 44, where an outlet of the liquid supply channel 44 is connected to an inlet of the heater 1, and the outlet of the liquid supply channel 44 is connected to the inlet of the heater 1, and may supply water to the heater 1 directly through the liquid supply channel 44 or supply water to the heater 1 through the first waterway 22 through the liquid supply channel 44. And the liquid supply channel 44 can also be connected with the first waterway 22 to supply water to the first waterway 22. This arrangement provides water assurance for the product through the liquid supply channel 44.

The inlet of the liquid supply channel 44 can be directly connected with a water pipe at home of a user, and the structure of the product can be simplified without specially arranging the liquid supply box 42, but the product needs to be used close to the water pipe. Meanwhile, the liquid supply tank 42 can be arranged in the liquid treatment device, and at the moment, water can be stably supplied through the liquid supply tank 42, so that the installation position of a product is more flexible and convenient.

Further, as shown in fig. 1 and 2, the liquid processing apparatus further includes: a pump body 46 is provided on the liquid supply passage 44.

In this embodiment, the liquid handling device includes a pump body 46. The pump body 46 is arranged on the liquid supply channel 44, and the start and stop of the liquid supply channel 44 and the flow of the supplied liquid can be controlled through the pump body 46, so that the cooling effect and the water yield of the water-cooled heat exchanger 2 are ensured.

In the above-described embodiment, as shown in fig. 1 and 2, the liquid treatment apparatus further includes a liquid reservoir 9. The liquid storage tank 9 is connected with the outlet of the heater 1 and/or the outlet of the second waterway 24 and/or the outlet of the phase change device 3 to collect the liquid output from the outlet of the heater 1 and/or the outlet of the second waterway 24 and/or the outlet of the phase change device 3.

In this embodiment, the liquid treatment apparatus further comprises a liquid storage tank 9, and the liquid storage tank 9 is capable of collecting the liquid cooled after heating. And the liquid storage tank 9 may be connected to one or more of the heater 1, the second waterway 24, and the phase change device 3, so that water output from one or more of the heater 1, the second waterway 24, and the phase change device 3 may be collected. On the one hand, the liquid storage tank 9 can mix water with different temperatures in the liquid storage tank 9 and then output the mixed water, so that the effect of further temperature adjustment is achieved. For example, the liquid storage tank 9 is connected to the outlet of the heater 1, and can directly discharge the hot water. The liquid storage tank 9 is connected to the outlet of the second water path 24 and the outlet of the heater 1, so that the liquid output from the outlet of the heater 1 and the outlet of the second water path 24 can be neutralized when the ambient temperature is low, and the liquid with the required temperature can be adjusted. Or the liquid storage tank 9 is connected to the outlet of the phase change device 3, so that the water with the temperature required by the user after double cooling can be output. Meanwhile, the instant heating device in the prior art is small in water yield and easy to branch, so that the user experience is very poor. However, after the liquid storage tank 9 is arranged, the liquid can be stored first, and the liquid is uniformly discharged after a certain amount of liquid is reached, so that the waiting time of a user is reduced, the water outlet bifurcation is avoided, and the user experience is improved.

Further, a control switch is arranged on any connecting channel of the liquid storage tank 9 and the heater 1, the second waterway 24 and the phase change device 3, and the on-off of the corresponding connecting channel can be controlled through the control switch, so that in the actual process, the connection condition of the liquid storage tank 9 and the heater 1, the second waterway 24 and the phase change device 3 can be controlled through the on-off of the control switch.

Further, the liquid treatment apparatus further comprises a water outlet assembly 6. The water outlet assembly 6 is connected with an outlet of at least one of the liquid storage tank 9, the second waterway 24 and the phase change device 3.

In this embodiment, when a reservoir 9 is provided, the water outlet assembly 6 is connected to the reservoir 9. The water outlet assembly 6 directly discharges the liquid in the liquid storage tank 9. When the liquid storage tank 9 is not arranged, the water outlet assembly 6 is connected with the outlet of the second waterway 24, the liquid passing through the water-cooled heat exchanger 2 can be discharged from the water outlet assembly 6, and when the water outlet assembly 6 is connected with the outlet of the phase change device 3, the liquid which exchanges heat with the water-cooled heat exchanger 2 and is stable in temperature through the phase change device 3 can be discharged. In the actual process, the connection position of the water outlet assembly 6 can be set according to the requirement so as to output water with different temperatures.

In another embodiment, the water outlet assembly 6 may be connected to the liquid storage tank 9, the second water channel 24 and the phase-change device 3, and the water outlet assembly 6 and the liquid storage tank 9, the second water channel 24 and the phase-change device 3 may be connected by controlling the connection relationship between the water outlet assembly 6 and the liquid storage tank 9, and the second water channel 24 and the phase-change device 3, so as to control the water outlet temperature of the water outlet assembly 6.

In the above embodiment, the water-cooled heat exchanger 2 includes a tube heat exchange structure or a row heat exchange structure. The specific structure of the water-cooling heat exchanger 2 can be set according to the needs, and the tubular heat exchange structure and the row type heat exchange structure are common and easy to purchase, so that the cost can be reduced. In the above embodiment, the heater 1 includes the instant heater 1 and the non-instant heater.

In the above embodiment, the heater 1 is an instant heater. The instant heating type heater can rapidly heat liquid to boiling, and achieves the effect of instant heating and instant drinking. Wherein the instant heating heater 1 may be a thick mode heating tube or a PTC tube.

In the above embodiment, the first water path 22 and the second water path 24 each include the metal portion and the nonmetal portion, and the portions of the first water path 22 and the second water path 24 that contact the heat exchanging portion 26 through the metal portion and the heat exchanging portion 26 are nonmetal portions.

In this embodiment, the first waterway 22 includes a metallic portion and a non-metallic portion. The second waterway 24 includes a metal portion and a nonmetal portion. The metal part is used for contacting with the heat exchange part 26, and the heat exchange efficiency between the first water channel 22 and the second water channel 24 is guaranteed through good heat conductivity of the metal part, and meanwhile, the surface, which is not contacted with the water-cooled heat exchanger 2, of the first water channel 22 and the second water channel 24 is set to be a nonmetal part, so that the liquid temperature can be prevented from being influenced by the room temperature, and the liquid treatment device is further guaranteed to discharge the liquid according to the preset temperature. For example, plastic can be used as the nonmetal part, and the plastic has poor heat conduction capability, can effectively prevent the temperature of liquid from being influenced by room temperature, and has low cost and good toughness, thereby being beneficial to the installation and maintenance of equipment.

In the above embodiment, the liquid processing apparatus further includes a heat dissipation device disposed corresponding to the phase change device 3 for dissipating heat from the phase change device 3.

In this embodiment, the liquid processing apparatus further includes a heat dissipating device that dissipates heat for the phase change device 3, and further ensures that the phase change device 3 can always be ensured at the same temperature, so that the phase change material can always maintain a state that can absorb heat or can release heat, and thus the apparatus can be continuously used. Of course, when the liquid treatment apparatus is not required to be used continuously, the heat sink may not be provided.

Further, the heat dissipation device comprises one or more of an air cooling heat dissipation device, a heat dissipation fin and a water cooling heat dissipation device. Because the air cooling heat dissipation device, the heat dissipation fins and the water cooling heat dissipation device are common, the purchasing and the installation are convenient, and the product cost can be reduced.

In the above embodiment, the liquid treatment apparatus includes at least one of an instant heating container, a water dispenser, and a drink machine.

In the above embodiment, by setting the preset temperature range to be 42-48 ℃, which is the temperature most suitable for people to drink, and controlling the phase change temperature of the phase change material to be 42-46 ℃, when the liquid in the second waterway 24 passes through the phase change device 3, the phase change material can undergo solid-liquid phase change to exchange heat from the liquid in the second waterway 24, so that the temperature of the liquid passing through the phase change device 3 can be kept within the preset temperature range, and the temperature of the liquid discharged from the second waterway can be controlled to be 46-60 ℃ by the water-cooled heat exchanger. The system can be applied to a discontinuous drinking water system, and can rapidly cool boiled water in a mode of heat storage by using a phase change material and environmental heat dissipation, and the system has the characteristics of no need of extra energy consumption in the cooling process, simple structure, high efficiency, reusability and the like, and has very good market application prospect and value.

Example III

As shown in fig. 2 and 3, a third embodiment of the present invention provides a liquid treatment apparatus including a boiling water passageway 7, comprising: a liquid supply assembly 4, a heater 1, a water-cooled heat exchanger 2, a diversion control device 8, a phase change device 3 and a boiling water channel 7. Wherein the heater 1 is capable of heating the liquid flowing therethrough; the water-cooled heat exchanger 2 comprises a first water channel 22, a second water channel 24 and a heat exchange part 26, wherein the heat exchange part 26 is arranged between the first water channel 22 and the second water channel 24, the first water channel 22 and the second water channel 24 exchange heat through the heat exchange part 26, and the second water channel 24 is connected with an outlet of the heater 1; the diversion control device 8 comprises a diversion control device inlet and a first diversion branch 82 and a second diversion branch 84 which can be communicated with and disconnected from the diversion control device inlet, and the diversion control device inlet is connected with the outlet of the second waterway 24; a first temperature detecting device 5, disposed corresponding to the outlet of the liquid supply assembly 4 and/or the inlet of the first water channel 22, for detecting the temperature of the outlet of the liquid supply assembly 4 and/or the inlet of the first water channel 22; the phase change device 3, the phase change device 3 is connected with the second branch 84, and can perform heat exchange treatment on the liquid flowing out of the second branch 84. The liquid treatment device also comprises a boiling water channel 7, and the outlet of the heater 1 is connected with the boiling water channel 7 and the phase change device 3 in parallel.

According to an embodiment of the present application, there is provided a liquid treatment apparatus including: the liquid supply assembly 4, the heater 1, the water-cooled heat exchanger 2, the shunt control device 8, the first temperature detection device 5 and the phase change device 3. The liquid supply unit 4 is used as a supply source of liquid such as water to supply the required liquid such as water to the heater 1 or the water-cooled heat exchanger 2. The water-cooled heat exchanger 2 includes a first water passage 22, a second water passage 24, and a heat exchanging portion 26, and the second water passage 24 is connected to an outlet of the heater 1. The phase change device 3 is connected with the outlet of the second waterway 24, the phase change device 3 comprises a phase change material, and when the liquid in the second waterway 24 passes through the phase change device 3, the phase change material exchanges heat with the liquid in the second waterway 24, so that the cooling or the cooling of the liquid in the second waterway 24 is realized. The first temperature detecting device 5 can obtain the temperature of the liquid flowing into the first water channel 22, and since the water-cooled heat exchanger 2 is greatly affected by the temperature of the liquid flowing into the first water channel 22, that is, the temperature of the liquid in the first water channel 22 will directly affect the heat exchange effect of the water-cooled heat exchanger 2, or will directly determine the temperature of the heat exchanged liquid flowing out of the second water channel 24. Therefore, the first temperature detection device 5 is provided to determine the water channel flow direction of the water-cooled heat exchanger 2. Specifically, when the first temperature detecting device 5 detects that the temperature is low, the boiled water can be cooled to a temperature suitable for drinking only through the water-cooled heat exchanger 2, and the hot water after heat exchange of the cold heat exchanger is directly output through the first split branch 82, so that excessive cooling is avoided. When the first temperature detecting means 5 detects a higher temperature, the boiled water cannot be cooled to a temperature suitable for drinking only by the water-cooled heat exchanger 2. Therefore, the diversion control device 8 can be controlled to enable the phase-change device 3 to be connected into the waterway, so that the liquid subjected to heat exchange by the water-cooling heat exchanger 2 flows into the second diversion branch 84 from the second waterway 24 and enters the phase-change device 3, and the liquid in the second diversion branch 84 is subjected to secondary cooling. The arrangement can form a double heat exchange device through the water-cooling heat exchanger 2 and the phase change device 3, and can quickly cool boiling liquid to a required temperature. Compared with the cooling mode of only arranging the water-cooling heat exchanger 2, the cooling mode of the water-cooling heat exchanger 2 is directly reduced to 45 ℃ and needs longer heat exchange pipelines, and the heat exchange requirement of the water-cooling heat exchanger 2 is reduced by arranging the water-cooling heat exchanger 2 and the phase change device 3, so that the pipeline of the water-cooling heat exchanger 2 can be shortened, the water-cooling heat exchanger 2 with lower efficiency is selected, the volume of the water-cooling heat exchanger 2 can be reduced, the cost of the water-cooling heat exchanger 2 is reduced, and the whole volume of a product is smaller and the cost is lower. Meanwhile, the temperature is controlled through the phase change material, so that the temperature of the discharged water is kept near the phase change temperature, and the temperature of the discharged water is further controllable, and when the water-cooled heat exchanger 2 is independently used, the heat exchange temperature of the water-cooled heat exchanger 2 has a certain deviation due to the fact that the influence of the ambient temperature on the liquid temperature is large, and therefore the temperature of the discharged water of the single water-cooled heat exchanger 2 is not quite stable. Meanwhile, the single water-cooling heat exchange module is limited by the structural size and efficiency, boiled water cannot be cooled to below 50 ℃, and the outlet water temperature can be further reduced to be lower than 50 ℃ through the additional phase change device 3, so that the outlet water temperature of the device is more beneficial to people to drink. In addition, the boiling water and the normal temperature water temperature difference is large before the water convection heat exchange, so that the water cooling heat exchange efficiency is high; the phase change device 3 uses the characteristic that the phase change temperature of the phase change material is constant, and the efficiency of heat exchange at low temperature difference is higher than that of the water-cooled heat exchanger 2, so that the water-cooled heat exchanger 2 is arranged in front, and the temperature reduction efficiency can be further improved by the combination of the phase change device 3 arranged behind. And further, through setting up first temperature-detecting device 5 and reposition of redundant personnel controlling means 8 can confirm the heat exchange efficiency of water-cooling heat exchanger 2 based on the temperature before the water-cooling heat exchanger 2, so can confirm whether the hot water after the water-cooling heat transfer needs further to carry out the secondary cooling through phase change device 3 based on the heat exchange efficiency of water-cooling heat exchanger 2, just so can reduce the influence of feed liquid temperature, make the liquid temperature of output more controllable, stable, avoid because feed liquid temperature is too low, and lead to boiled water or drink to be excessively cooled, also can avoid leading to the cooling inadequately because the heat exchange efficiency of water-cooling heat exchanger 2 is too low that the feed liquid temperature is higher, and then lead to unable output the required temperature of user. While the boiling water channel 7 and the phase change means 3 are connected in parallel with the outlet of the heater 1. The water heated by the heater 1 can be output through the boiling water channel 7, so that the product can obtain the boiling water directly heated by the heater 1 while outputting the warm water suitable for direct drinking by a user, and the user can conveniently make tea, brew coffee and the like.

Other structures of the liquid treatment apparatus in this embodiment are substantially the same as those of the second embodiment, and will not be described herein.

An embodiment of a second aspect of the present invention provides a method for controlling a liquid treatment apparatus, for use with the liquid treatment apparatus provided in any one of the embodiments of the first aspect. The structure of the liquid treatment apparatus is shown in fig. 1 to 4. The control method is as shown in fig. 5, and includes:

s502, acquiring the temperature detected by the first temperature detection device;

s504, when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device.

According to the control method of the liquid treatment device provided by the application, the on-off between the inlet of the diversion control device and the first diversion branch and the second diversion branch can be controlled based on the liquid supply temperature. The liquid supply temperature can be used for determining whether the liquid subjected to heat exchange of the water-cooled heat exchanger needs to be subjected to secondary heat exchange through the phase change device. Generally, when the liquid supply temperature is greater than the first threshold value, the liquid supply temperature is higher, so that the heat exchange requirement is larger, and the secondary heat exchange is needed through the phase change device, so that the low heat exchange efficiency of the water-cooling heat exchanger caused by the overhigh liquid supply temperature can be supplemented, the overall heat exchange efficiency of the liquid device is improved, the fluctuation is small, and the accuracy of temperature control is improved. Otherwise, the heat exchange requirement is not large, and at this time, the flow direction of the water flow needs to be further judged according to the subsequent conditions.

Further, the first threshold is 30 ℃ to 37 ℃.

In this embodiment, the first threshold should be less than 37 ℃ and equal to or greater than 30 ℃. Because the water-cooling heat exchanger adopts the liquid flowing out of the liquid supply assembly to exchange heat the liquid flowing out of the heater, and the temperature flowing out of the heater is the boiled water with the temperature of 100 ℃, the temperature detected by the temperature detection device directly influences the heat exchange effect of the water-cooling heat exchanger. If the first threshold is set to 35 ℃, when the temperature detected by the temperature detecting device is higher than the first threshold of 35 ℃, the temperature of the liquid flowing out of the second waterway after heat exchange is higher, and direct drinking cannot be met, so that the liquid in the second waterway needs to flow into the second shunt branch and then flow into the phase change device, the liquid is cooled for the second time, and the liquid is discharged after reaching the proper temperature.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the inlet temperature of the heater, and when the inlet temperature of the heater is larger than or equal to a second threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device; or calculating the times N1 that the inlet temperature of the heater is greater than or equal to a second threshold value within a first preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N1 are greater than the first preset times so as to cool through the phase change device; or calculating the continuous times N2 of which the inlet temperature of the heater is greater than or equal to a second threshold value within a second preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N2 are greater than the second preset times so as to cool through the phase change device.

In this embodiment, when the inlet temperature of the heater is higher than the second threshold, it is indicated that the inlet temperature of the heater is too high, and therefore, the heat exchange effect of the heat exchanger is generally considered to be poor, so that the temperature of the water coming out of the second water path is predicted to be relatively high, or the temperature fluctuation is relatively large, and therefore, at this time, the inlet of the diversion control device can be controlled to be conducted with the second diversion branch, so that the liquid in the second water path flows into the second diversion branch, and then flows into the phase change device, and the liquid is cooled for the second time, so that the liquid is discharged after reaching the proper temperature. Further, in order to avoid erroneous judgment, when the liquid supply temperature is low, the number of times N1 that the inlet temperature is equal to or greater than the second threshold value in the first preset time period or the number of times N2 that the inlet temperature is equal to or greater than the second threshold value in the second preset time period may be further calculated, and if the number of times N1 or the number of times N2 is greater than the specified threshold value, it is indicated that the inlet temperature of the heater is actually too high, rather than a sporadic phenomenon, so that the phase change device is required to perform secondary heat exchange. If the number of times N1 or the number of times N2 is smaller than the predetermined threshold value, it is indicated that the inlet temperature of the heater is not excessively high continuously but is a sporadic phenomenon, so that the phase change device is not required to perform the secondary heat exchange. According to the arrangement, the heat exchange efficiency of the water-cooling heat exchanger is doubly judged through the inlet temperature of the heater and the frequency of the higher inlet temperature, so that the control accuracy of the temperature is ensured.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the liquid temperature of an outlet of the second waterway and/or the liquid temperature of an inlet of the shunt control device, and when the liquid temperature of the outlet of the second waterway and/or the liquid temperature of the inlet of the shunt control device is larger than or equal to a third threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device; or calculating the liquid temperature of the outlet of the second waterway and/or the frequency N3 of the liquid temperature of the inlet of the shunt control device being greater than or equal to a third threshold value within a third preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the frequency N3 is greater than the third preset frequency so as to reduce the temperature through the phase change device; or calculating the liquid temperature of the outlet of the second waterway and/or the continuous times N4 of which the liquid temperature of the inlet of the shunt control device is greater than or equal to a third threshold value within a fourth preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N4 are greater than the fourth preset times so as to reduce the temperature through the phase change device.

In this embodiment, when the temperature of the liquid supply is low, the temperature after heat exchange of the heat exchanger can be further determined, and if the temperature of the liquid output after heat exchange of the heat exchanger is high, this indicates that the heat exchange efficiency of the water-cooled heat exchanger is reduced, so that the phase change device needs to be further cooled. Of course, the number of times or the number of times of continuous reading of the temperature of the liquid output after heat exchange of the heat exchanger in a certain time can be counted to determine whether the heat exchange efficiency of the water-cooled heat exchanger is reduced, and if the number of times or the number of times of continuous reading of the temperature of the liquid output after heat exchange of the heat exchanger is high, the heat exchange efficiency of the water-cooled heat exchanger is reduced, so that the phase change device is required to be further cooled.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, the continuous working time length T1 of the water-cooled heat exchanger is obtained, and when the T1 is larger than or equal to a fifth preset time length, an inlet of the shunt control device is controlled to be communicated with the second shunt branch so as to cool through the phase change device; and when T1 is smaller than a fifth preset time period, controlling the inlet of the shunt control device to be communicated with the first shunt branch.

In this embodiment, when the liquid supply temperature is low, the continuous operation time period T1 of the water-cooled heat exchanger may be further obtained, and if the operation time period of the water-cooled heat exchanger is relatively long, the heat exchange efficiency of the water-cooled heat exchanger may be reduced, so it may be predicted that the heat exchange efficiency of the water-cooled heat exchanger is actually reduced due to long-time operation, and at this time, the secondary heat exchange may be started. On the contrary, if the working time of the water-cooled heat exchanger is relatively short, the working efficiency of the water-cooled heat exchanger is generally considered not to be too low, so that the temperature is considered to be too high as an occasional phenomenon, and the phase change device is not required to be introduced for secondary heat exchange. According to the arrangement, the heat exchange efficiency of the water-cooling heat exchanger is doubly judged through the inlet temperature of the heater and the working time of the water-cooling heat exchanger, so that the control accuracy of the temperature is ensured.

In the above embodiment, the control method further includes: and when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, acquiring continuous working time length T2 of the phase change device, and when the T2 is greater than or equal to a sixth preset time length, radiating the heat of the phase change device.

In this embodiment, when the liquid supply temperature is too high, the continuous working time period T2 of the phase change device may be further determined, and if the working time period of the phase change device is too long, the phase change material multiplexing is not facilitated, so that the heat dissipation device may be started to perform auxiliary heat dissipation, and the phase change material multiplexing is improved.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, the continuous working time length T3 of the phase change device is obtained, and when the T3 is larger than or equal to a seventh preset time length, the phase change device is subjected to heat dissipation, or an inlet of the shunt control device is controlled to be communicated with the first shunt branch.

In the embodiment, when the working time of the phase change device is too long and the phase change material is unfavorable for multiplexing, the heat dissipation device is started to conduct auxiliary heat dissipation, and the multiplexing of the phase change material is improved.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the water yield A1 of the liquid treatment device in an eighth preset time period, and when the water yield A1 is larger than or equal to the first preset water yield, controlling the inlet of the diversion control device to be communicated with the second diversion branch so as to cool the phase change device; when the water yield A1 is smaller than the preset water yield, the inlet of the diversion control device is controlled to be communicated with the first diversion branch.

In the embodiment, the fact that the water yield of the liquid device is more in a certain period of time is monitored, that is, the machine is in a continuous use state, the heat exchange efficiency of the water-cooled heat exchanger is predicted to be reduced, and in order to ensure the accuracy and precision of the temperature of the water discharged by the liquid device, the liquid is distributed to the phase change device, so that the efficiency utilization is maximized, and the stability and precision of the temperature of the water discharged by the liquid device are ensured.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, the water yield A2 of the liquid treatment device in a ninth preset time period is obtained, and when the water yield A2 is greater than or equal to a second preset water yield, the phase change device is subjected to heat dissipation.

In this embodiment, the temperature detected by the first temperature detecting device is greater than or equal to the first threshold, and heat exchange is performed by the phase change device at this time, and if the water yield is found to be large at this time, the reusability of the phase change device is low, so that the heat dissipation device can be started to assist in heat dissipation, and the reusability of the phase change device is improved.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, calculating a first interruption time T4 of water outlet of the liquid treatment device in a tenth preset time, and when T4 is less than or equal to a first target time, radiating heat of the phase change device.

In this embodiment, a first interruption time length of water outlet within a fifth preset time length is obtained, and the number of times N3 that the first interruption time length is smaller than a first target time length is calculated, if N3 is greater than a third preset time length, it is indicated that the interruption time length is longer and the number of times is more, it is indicated that water outlet is slower, so that the heat exchange efficiency is also indirectly reflected to be lower, and therefore, the phase change device can be introduced to perform secondary heat exchange. Otherwise, the heat exchange efficiency is higher, and the phase change device is not required to be introduced for secondary heat exchange. This kind of setting carries out dual judgement through the time length of interruption of temperature and play water, has further ensured the demand of heat exchange efficiency for the accuse temperature is more accurate.

In this embodiment, the temperature detected by the first temperature detecting device is greater than or equal to the first threshold, and heat exchange is performed by the phase change device at this time, if the interruption time of the water yield is found to be smaller at this time, the phase change device is always working, so that the heat dissipation device can be started to assist in heat dissipation to avoid the lower reusability of the phase change device, and the reusability of the phase change device is improved, so that the phenomenon of reduced efficiency of the phase change material caused by overlong working time of the phase change device is avoided.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is smaller than a first threshold value, calculating a second interruption time T5 of water outlet of the liquid treatment device in an eleventh preset time, and controlling an inlet of the shunt control device to be communicated with a second shunt branch when T5 is larger than or equal to a second target time so as to cool through the phase change device, and when T5 is smaller than the second target time, radiating the phase change device.

In this embodiment, the temperature detected by the first temperature detecting device is less than or equal to the first threshold, if at this time, the number of times that the interruption duration of the water is less than the target duration is detected to be excessive, at this time, the multiplexing time of the phase change material in the phase change device is predicted to be less, at this time, the use of the phase change device is reduced, and the power can be distributed to the water-cooled heat exchanger, so that on one hand, the cooling effect is ensured, and on the other hand, the multiplexing of the phase change material is facilitated.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, the times N5 of third interruption time T6 of water outlet in the twelfth preset time period is less than or equal to a third target time period are calculated, and when the times N5 are greater than the third threshold value, an inlet of the shunt control device is controlled to be communicated with the first shunt branch, or the heat dissipation device is controlled to conduct heat dissipation on the phase change device.

In this embodiment, the temperature detected by the first temperature detecting device is greater than or equal to the first threshold, and heat exchange is performed by the phase change device at this time, if at this time, the number of times that the interruption time of the water is less than the target time is detected is excessive, at this time, the multiplexing time of the phase change material in the phase change device is predicted to be less, at this time, the use of the phase change device is reduced, and the power can be distributed to the water-cooled heat exchanger, so that on one hand, the cooling effect is ensured, and on the other hand, the multiplexing of the phase change material is facilitated.

In the above embodiment, the control method further includes: when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, calculating the sum N6 of continuous times that the fourth interruption time T7 of water discharged by the liquid treatment device in the thirteenth preset time is less than or equal to a fourth target time, and when N6 is greater than the fourth threshold value, controlling the inlet of the diversion control device to be communicated with the first diversion branch, or controlling the heat dissipation device to dissipate heat of the phase change device.

In the embodiment, the interruption time of the water is judged, so that the efficiency utilization condition of the phase change device is prejudged, and when the interruption time is long, the efficiency of the phase change device can be utilized to the greatest extent, the use efficiency of the phase change device is improved, and the cooling effect is improved; when the interruption time is shorter, the phase change material reusability in the phase change device can be predicted to be poorer, and the heat dissipation device is started to dissipate heat of the phase change device, so that the use efficiency of the phase change device is improved.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. A liquid treatment apparatus, comprising:

a heater capable of heating the flowing liquid;

the water-cooling heat exchanger comprises a first waterway, a second waterway and a heat exchange part, wherein the heat exchange part is arranged between the first waterway and the second waterway, the first waterway and the second waterway exchange heat through the heat exchange part, and the second waterway is connected with an outlet of the heater;

A liquid supply assembly;

the parameter monitoring device is used for monitoring parameters of the liquid treatment device and comprises a first temperature detection device, a second temperature detection device and a third temperature detection device, wherein the first temperature detection device is arranged corresponding to an outlet of the liquid supply assembly and/or an inlet of the first waterway and is used for detecting the temperature of liquid in the liquid supply assembly and/or the temperature of liquid at the inlet of the first waterway;

the shunt control device comprises a shunt control device inlet, a first shunt branch and a second shunt branch, wherein the first shunt branch and the second shunt branch can be communicated with and disconnected from the shunt control device inlet, the shunt control device inlet is connected with an outlet of the second waterway, and the shunt control device is connected with the parameter monitoring device and is used for controlling the on-off between the shunt control device inlet and the first shunt branch and the second shunt branch according to the parameter of the parameter monitoring device;

the phase change device is connected with the second shunt branch and can perform heat exchange treatment on liquid flowing out of the second shunt branch.

2. A liquid treatment apparatus according to claim 1, wherein,

and when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device.

3. The liquid treatment apparatus according to claim 2, wherein the parameter monitoring apparatus further comprises:

the second temperature detection device is used for detecting the liquid temperature of the outlet of the second waterway and/or the liquid temperature of the inlet of the diversion control device and/or the inlet temperature of the heater;

the duration detection device is used for detecting the continuous working duration of the water-cooled heat exchanger and/or the continuous working duration of the phase change device and/or detecting the intermittent duration T3 of water outlet of the liquid treatment device within a first preset duration;

counting means for counting the number of times N1 that the inlet temperature of the heater is equal to or higher than a second threshold value in a first preset time period, for counting the number of consecutive times N2 that the inlet temperature of the heater is equal to or higher than the second threshold value in a second preset time period, for counting the number of times N3 that the outlet liquid temperature of the second waterway is equal to or higher than a third threshold value in a third preset time period, for counting the number of times N3 that the inlet liquid temperature of the shunt control means is equal to or higher than a third threshold value in a fourth preset time period, for counting the number of consecutive times N4 that the outlet liquid temperature of the second waterway is equal to or higher than the third threshold value in a tenth preset time period and/or the number of times N6 that the outlet liquid treatment means is equal to or lower than a third target time period in an eleventh preset time period, and/or counting the number of times N6 that the outlet liquid treatment means is equal to or lower than a fourth target time period in a thirteenth preset time period in a fourth preset time period;

A flow rate detection device for detecting the water yield of the liquid treatment device;

the shunt control device is specifically configured to control on-off between an inlet of the shunt control device and the first shunt branch and the second shunt branch according to parameters monitored by at least one of the second temperature detection device, the duration detection device, the counting device, and the flow detection device when the temperature detected by the first temperature detection device is less than the first threshold.

4. The liquid treatment apparatus according to claim 1, wherein an outlet of the first water passage is connected to an inlet of the heater, and the liquid flowing through the first water passage enters the heater to be heated and then enters the second water passage.

5. The liquid treatment apparatus according to claim 1, wherein the phase change apparatus further comprises:

a housing;

the phase change channel is arranged in the shell or wound outside the shell and is connected with the outlet of the second waterway;

the phase change material is arranged in the shell and can exchange heat with the liquid in the phase change channel during phase change;

The phase-change channel and the second waterway are of an integrated structure, or the phase-change channel and the second waterway can be detachably connected; and/or

The phase change channel and the shell can be detachably connected, or the phase change channel and the shell are assembled into an integrated structure.

6. The liquid treatment apparatus of claim 1, wherein the liquid supply assembly comprises:

a liquid supply tank;

the inlet of the liquid supply channel is connected with the outlet of the liquid supply box;

the outlet of the liquid supply channel is connected with the inlet of the heater and/or the first waterway;

wherein, temperature detection device sets up on the confession liquid case, perhaps temperature detection device sets up on the confession liquid passageway.

7. The liquid treatment apparatus according to claim 1, further comprising:

and the outlet of the heater is connected with the boiling water channel and the second waterway in parallel.

8. The liquid treatment apparatus according to claim 7, further comprising:

and the liquid storage tank is connected with at least one of the outlet of the boiling water channel, the outlet of the first diversion branch and the outlet of the phase change device so as to collect liquid output by the outlet of the boiling water channel and/or the outlet of the first diversion branch and/or the outlet of the phase change device.

9. The liquid treatment apparatus according to claim 8, further comprising:

and the water outlet assembly is connected with the outlet of the liquid storage tank.

10. The liquid treatment apparatus according to any one of claims 1 to 9, wherein,

the first waterway and the second waterway are metal pipelines; and/or

The first waterway and the second waterway comprise a metal part and a nonmetal part, the first waterway and the second waterway exchange heat through the metal part and the heat exchange part, and the part of the first waterway and the second waterway, which is not contacted with the heat exchange part, is the nonmetal part.

11. The liquid treatment apparatus according to any one of claims 1 to 9, characterized by further comprising:

and the heat dissipation device is arranged corresponding to the phase change device and is used for dissipating heat of the phase change device.

12. A control method for a liquid treatment apparatus according to any one of claims 1 to 11, comprising:

and acquiring the temperature detected by the first temperature detection device, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the temperature detected by the first temperature detection device is greater than or equal to a first threshold value so as to reduce the temperature through the phase change device.

13. A control method of a liquid treatment apparatus according to claim 12, wherein,

the first threshold is greater than or equal to 30 ℃ and less than or equal to 37 ℃.

14. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring the inlet temperature of the heater, and when the inlet temperature of the heater is larger than or equal to a second threshold value, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device; or (b)

Calculating the times N1 of the inlet temperature of the heater being greater than or equal to a second threshold value within a first preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N1 are greater than a first preset time period so as to reduce the temperature through the phase change device; or (b)

And calculating continuous times N2 of which the inlet temperature of the heater is greater than or equal to the second threshold value within a second preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N2 are greater than the second preset times so as to reduce the temperature through the phase change device.

15. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detecting device is smaller than the first threshold value, the liquid temperature at the outlet of the second waterway and/or the liquid temperature at the inlet of the diversion control device are obtained,

when the liquid temperature at the outlet of the second waterway and/or the liquid temperature at the inlet of the diversion control device is greater than or equal to a third threshold value, controlling the inlet of the diversion control device to be communicated with the second diversion branch so as to reduce the temperature through the phase change device; or (b)

Calculating the liquid temperature of an outlet of the second waterway and/or the frequency N3 of the liquid temperature of an inlet of the diversion control device being greater than or equal to a third threshold value within a third preset time period, and controlling the inlet of the diversion control device to be communicated with the second diversion branch when the frequency N3 is greater than the third preset frequency so as to reduce the temperature through the phase change device; or (b)

And calculating the liquid temperature of the outlet of the second waterway and/or the continuous times N4 of which the liquid temperature of the inlet of the shunt control device is greater than or equal to the third threshold value within a fourth preset time period, and controlling the inlet of the shunt control device to be communicated with the second shunt branch when the times N4 are greater than the fourth preset times so as to reduce the temperature through the phase change device.

16. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detection device is smaller than a first threshold value, acquiring continuous working time length T1 of the water-cooled heat exchanger, and when T1 is larger than or equal to a fifth preset time length, controlling an inlet of the shunt control device to be communicated with the second shunt branch so as to reduce the temperature through the phase change device;

and when the T1 is smaller than the fifth preset time period, controlling an inlet of the shunt control device to be communicated with the first shunt branch.

17. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detection device is greater than or equal to the first threshold value, acquiring continuous working time length T2 of the phase change device, and when the T2 is greater than or equal to a sixth preset time length, radiating the heat of the phase change device;

and when the temperature detected by the first temperature detection device is smaller than the first threshold value, acquiring continuous working time length T3 of the phase change device, and when the T3 is larger than or equal to a seventh preset time length, radiating the phase change device, or controlling an inlet of the shunt control device to be communicated with the first shunt branch.

18. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detection device is smaller than the first threshold value, acquiring the water yield A1 of the liquid treatment device in an eighth preset time period, and when the water yield A1 is larger than or equal to a first preset water yield, controlling the inlet of the shunt control device to be communicated with the second shunt branch so as to cool the phase change device;

when the water yield A1 is smaller than the preset water yield, controlling an inlet of the diversion control device to be communicated with the first diversion branch;

and when the temperature detected by the first temperature detection device is greater than or equal to the first threshold value, acquiring the water yield A2 of the liquid treatment device in a ninth preset time period, and radiating the phase change device when the water yield A2 is greater than or equal to a second preset water yield.

19. The control method of a liquid processing apparatus according to claim 12, characterized by further comprising:

when the temperature detected by the first temperature detection device is greater than or equal to the first threshold value, calculating a first interruption time T4 of water outlet of the liquid treatment device in a tenth preset time period, and when the T4 is less than or equal to a first target time period, radiating heat of the phase change device;

When the temperature detected by the first temperature detection device is smaller than the first threshold value, calculating a second interruption time T5 of water outlet of the liquid treatment device in an eleventh preset time, controlling an inlet of the shunt control device to be communicated with the second shunt branch when T5 is larger than or equal to a second target time so as to cool through the phase change device, and radiating heat of the phase change device when T5 is smaller than the second target time; or alternatively

Calculating the times N5 that the third interruption time T6 of the water outlet in the twelfth preset time is smaller than or equal to a third target time, and controlling an inlet of the shunt control device to be communicated with the first shunt branch or controlling a heat dissipation device to dissipate heat of the phase change device when the N5 is larger than a third threshold value; or alternatively

Calculating the sum N6 of continuous times of the fourth interruption time T7 of the water outlet of the liquid treatment device in the thirteenth preset time period is smaller than or equal to the fourth target time period, and controlling the inlet of the diversion control device to be communicated with the first diversion branch or controlling the heat dissipation device to dissipate heat of the phase change device when the N6 is larger than a fourth threshold value.