CN219156698U - Instant heating type water purifier - Google Patents

Abstract

The utility model discloses an instant heating type water purifier, which belongs to the technical field of water purification and comprises a variable-frequency booster pump, an RO filter element and a controller, wherein the variable-frequency booster pump is electrically connected with the controller, a pure water outlet of the RO filter element is connected with a cold water output pipe and an instant hot water output pipe, the instant hot water output pipe is provided with a variable-frequency heating mechanism, a first temperature sensor and a first flowmeter are arranged in front of the variable-frequency heating mechanism, a second temperature sensor is arranged behind the variable-frequency heating mechanism, and the variable-frequency heating mechanism, the first temperature sensor, the second temperature sensor and the first flowmeter are electrically connected with the controller. The instant heating type water purifier is characterized in that a variable frequency heating mechanism is arranged, a first temperature sensor and a flow sensor are arranged in front of the variable frequency heating mechanism, a second temperature sensor is arranged behind the variable frequency heating mechanism, and the power of the variable frequency heating mechanism is adjusted through monitoring the water temperature and the flow before and after heating, so that the purpose of keeping the temperature of the outputted hot water constant is achieved.

Description

Instant heating type water purifier

Technical Field

The utility model relates to the technical field of water purifiers, in particular to an instant heating type water purifier.

Background

The existing water purifier with hot water output is generally two, one water purifier is provided with a hot water storage tank, can heat and store hot water, can release a large amount of hot water at one time, and has a constant temperature of the hot water, but the water purifier has a large volume, and in order to ensure the water temperature of the hot water, the water purifier is repeatedly heated, so that the energy consumption is high, and the old hot water is easy to form after repeated heating. The other type is instant heating, a hot water storage tank is not generally arranged, when a user takes water, the instant heating is performed, no old hot water is generated, but because the instant heating is limited in power, the hot water output is limited, so that a booster pump is repeatedly started and stopped, the water output is unstable, meanwhile, the water temperature is unstable, and finally, the user experience is reduced.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide an instant heating type water purifier, which aims to solve the defect of unstable temperature of hot water output by the existing instant heating type water purifier.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an instant heating type water purifier, includes frequency conversion booster pump, RO filter core, controller, frequency conversion booster pump and controller electric connection, the pure water exit linkage of RO filter core has cold water output tube and instant heating output tube, wherein, instant heating output tube is equipped with frequency conversion heating mechanism, be equipped with first temperature sensor and first flowmeter before the frequency conversion heating mechanism, be equipped with second temperature sensor behind the frequency conversion heating mechanism, first temperature sensor, second temperature sensor and first flowmeter all with controller electric connection.

In the instant heating type water purifier, a pipeline connected with the pure water outlet is also provided with a high-pressure water flow switch, and the high-pressure water flow switch is electrically connected with the controller and can transmit different signals to the controller according to the water pressure and water flow condition of the pure water outlet.

In the instant heating type water purifier, a brushless variable frequency pump is further arranged between the first temperature sensor and the first flowmeter, and the brushless variable frequency pump is electrically connected with the controller.

In the instant heating type water purifier, a zero pressure valve is further arranged in front of the brushless variable frequency pump.

In the instant heating type water purifier, a first water quality sensor is further arranged in front of the variable-frequency booster pump, a second water quality sensor is further arranged behind the high-pressure water flow switch, and the first water quality sensor and the second water quality sensor are electrically connected with the controller.

In the instant heating type water purifier, a proportional control valve is further arranged between the RO filter element and the high-pressure water flow switch, one output pipeline of the proportional control valve is communicated with the input end of the variable-frequency booster pump, and the proportional control valve is electrically connected with the controller.

In the instant heating type water purifier, a front filter element is further arranged in front of the variable-frequency booster pump.

In the instant heating type water purifier, a rear filter element is further arranged behind the high-pressure water flow switch, and the output end of the rear filter element is respectively communicated with the cold water output pipe and the instant hot water output pipe.

The beneficial effects are that:

the utility model provides an instant heating type water purifier, which is characterized in that a variable frequency heating mechanism is arranged, a first temperature sensor and a flow sensor are arranged in front of the variable frequency heating mechanism, a second temperature sensor is arranged behind the variable frequency heating mechanism, and the power of the variable frequency heating mechanism is adjusted through monitoring the water temperature and flow before and after heating, so that the aim of keeping the temperature of the outputted hot water constant is fulfilled.

Drawings

Fig. 1 is a schematic diagram of a structure of an instant water purifier according to the present utility model.

Fig. 2 is a schematic structural view of the high-pressure water flow switch.

Fig. 3 is a schematic diagram of a structure of the instant water purifier.

Fig. 4 is a schematic diagram III of the structure of the instant water purifier.

Fig. 5 is a schematic diagram of the structure of the instant water purifier.

The drawings are marked: the device comprises a 1-variable-frequency booster pump, a 2-RO filter element, a 3-water inlet pipeline, a 4-pure water output pipeline, a 5-concentrated water discharge pipeline, a 6-water inlet electromagnetic valve, a 7-cold water output pipe, an 8-namely hot water output pipe, a 9-cold water electromagnetic valve, a 10-water pump, an 11-heating mechanism, a 12-concentrated water electromagnetic valve, a 13-first temperature sensor, a 14-first flowmeter, a 15-second temperature sensor, a 16-high-pressure water flow switch, a 17-water pressure sensing part, a 18-water flow sensing part, a 19-proportion regulating valve, a 20-zero pressure valve, a 21-first water quality sensor, a 22-second water quality sensor, a 23-front filter element and a 24-rear filter element.

Detailed Description

The utility model provides an instant heating type water purifier, which is further described in detail below with reference to the accompanying drawings and examples in order to make the purposes, technical schemes and effects of the utility model clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present preferred embodiment provides an instant heating water purifier, the water purifier includes a variable frequency booster pump 1 and an RO filter core 2 which are communicated through a pipeline, and further includes a water inlet pipeline 3 which is communicated with an input end of the variable frequency booster pump 1, a pure water output pipeline 4 which is communicated with a pure water outlet of the RO filter core 2, and a concentrated water discharge pipeline 5 which is communicated with a concentrated water outlet of the RO filter core 2, wherein the water inlet pipeline 3 is further provided with a water inlet electromagnetic valve 6, the pure water output pipeline 4 is connected with a cold water output pipe 7 and an instant hot water output pipe 8, the cold water output pipe 7 is provided with a cold water electromagnetic valve 9, the instant hot water output pipe 8 is provided with a variable frequency heating mechanism 11, the concentrated water discharge pipeline 5 is provided with a concentrated water electromagnetic valve 12, the water purifier is further provided with a controller (not shown in the figure), and the variable frequency booster pump 1, the water inlet electromagnetic valve 6, the cold water electromagnetic valve 9, the concentrated water electromagnetic valve 12 and the variable frequency heating mechanism 11 are all electrically connected with the controller, and the operation and closing of the variable frequency heating mechanism can be controlled by the controller.

The variable frequency heating mechanism 11 is provided with a first temperature sensor 13 and a first flowmeter 14 in front, the variable frequency heating mechanism 11 is provided with a second temperature sensor 15 in back, and the first temperature sensor 13, the second temperature sensor 15 and the first flowmeter 14 are all electrically connected with the controller. When the variable-frequency heating device works, the first temperature sensor 13 and the second temperature sensor 15 can acquire the water temperature before and after the variable-frequency heating mechanism 11 and transmit the water temperature information to the controller; the first flowmeter 14 can acquire the flow rate of the variable frequency heating mechanism 11 and transmit the flow rate to the controller. The controller calculates and adjusts the power of the variable frequency heating mechanism 11 according to the flow and the water temperature before and after the variable frequency heating mechanism 11 so as to make the temperature of the outputted hot water constant. The instant heating type water purifier can synchronously adjust the power of the heating mechanism when the flow rate is changed or the water temperature before heating is changed, so that the output water temperature is ensured to be constant, and the user experience is improved.

However, because of the instant heating, the water output by the hot water is smaller, especially only hot water is output, and when no cold water is output, the variable-frequency booster pump 1 can be started and stopped frequently, so that the hot water output by the variable-frequency booster pump is unstable, and the output hot water is unstable, so that the controller can repeatedly adjust the power of the variable-frequency heating mechanism 11, and a stable water temperature can be obtained. However, frequent adjustment of the power of the variable frequency heating mechanism 11 still affects fluctuation of the water outlet temperature. In a preferred embodiment, as shown in fig. 2, the pure water output pipeline 4 is further provided with a high-pressure water flow switch 16, and the high-pressure water flow switch 16 is electrically connected with the controller, and can send different signals to the controller according to the water pressure and the water flow condition in the pure water output pipeline, so that the controller can send different control signals to the variable-frequency booster pump conveniently, and frequent start and stop of the pure water output pipeline when the pure water output quantity is small can be avoided.

Specifically, as shown in fig. 2, the high-pressure water flow switch 16 includes a water pressure sensing portion 17 and a water flow sensing portion 18, where the water pressure sensing portion 17 and the water flow sensing portion 18 are electrically connected to the controller and can trigger different signals to the controller when the water pressure and the water flow state are different. For example, when the pure water output pipe outputs pure water and the pure water output quantity is equal to the water yield of the RO filter core 2, the water pressure sensing part 17 is disconnected from the controller, the water flow sensing part 18 is in a closed state with the controller, and the controller sends out a control signal for starting the variable-frequency booster pump 1 and operating at rated power according to the connected state; when pure water is output in the pure water output pipeline, but the pure water output quantity is smaller than the rated water yield of the variable-frequency booster pump 1, the water pressure in the pure water output pipeline 4 is gradually increased, so that the water pressure sensing part is communicated with the controller, and meanwhile, the water flow sensing part is also communicated with the controller due to the pure water output, so that the controller sends a control signal for reducing the power of the variable-frequency booster pump, and the amount of the power reduction of the variable-frequency booster pump is calculated according to the flow obtained by the flowmeter; when the pure water output amount in the pure water output line is zero, the water flow sensing portion 18 is disconnected from the controller, and the water pressure in the pure water delivery line is large, at this time, the controller sends out a control signal to turn off the variable-frequency booster pump 1.

Therefore, by arranging the high-pressure water flow switch 16, the phenomenon that the variable-frequency booster pump 1 is frequently started and stopped when the pure water output quantity of the instant heating type water purifier is small can be avoided, the pure water output quantity is stable, the situation that the variable-frequency heating mechanism 11 needs to continuously adjust power due to the unstable pure water output quantity can be avoided, the hot water output quantity and the temperature are stable, and the service life of the variable-frequency booster pump is prolonged.

In some embodiments, as shown in fig. 1, a brushless variable frequency pump 10 is further disposed between the first temperature sensor 13 and the first flowmeter 14, and the brushless variable frequency pump 10 is electrically connected to the controller, for controlling the amount of hot water output. In the specific implementation process, when the water intake of the hot water is large, the power of the variable-frequency heating mechanism 11 cannot meet the heating amount requirement, so that the temperature during hot water output cannot reach the set value. At this time, the controller adjusts the variable frequency booster pump 1 according to the water temperature information obtained by the second temperature sensor 15 (sometimes, the power of the variable frequency booster pump 1 is already maximum, but the temperature of the outputted hot water still cannot reach the set value), and simultaneously reduces the power of the brushless variable frequency pump 10 to reduce the water yield, thereby achieving the purpose of ensuring the constant temperature of the outputted hot water.

In one embodiment, as shown in fig. 1, a zero-pressure valve 20 is further disposed in front of the brushless variable frequency pump 10, and the zero-pressure valve 20 can adjust pure water flowing to the brushless variable frequency pump 10 to a zero-pressure state, so that the control of pure water delivery by the brushless variable frequency pump 10 is more accurate, and the control of the power of the variable frequency heating mechanism 11 and the temperature of hot water output are facilitated.

Because the purifying capacity of the RO filter element 2 is related to water quality, when the water quality is good, the pressure required by the water to permeate the reverse osmosis membrane is small, so that the power of the booster pump is small, and when the water quality is poor, the pressure required by the water to permeate the reverse osmosis membrane is large, so that the power of the booster pump is large. In order to adjust the power of the booster pump to adapt to the pure water output, in one embodiment, as shown in fig. 3, a first water quality sensor 21 is further disposed in front of the variable-frequency booster pump 1, and a second water quality sensor 22 is further disposed behind the high-pressure water flow switch 16, where the first water quality sensor 21 and the second water quality sensor 22 are electrically connected to the controller. The water quality before purification can be known in real time through the first water quality sensor 21, and when the water quality is poor, the controller increases the power of the booster pump, and when the water quality is small, the power of the booster pump is reduced to obtain stable pure water output. And through the second water quality sensor 22, the TDS value of purified or pure water can be checked in real time, so that the controller can adjust the frequency of the booster pump according to the water quality before and after purification, and the pure water quality is ensured while the pure water yield is ensured.

However, when the water source quality is poor, although the stability of the pure water output can be ensured by increasing the power of the variable-frequency booster pump 1, when the pressure of the variable-frequency booster pump 1 is too large, the service lives of the RO filter element 2 and the variable-frequency booster pump 1 can be reduced, and the backwashing frequency of the RO filter element 2 can be increased. In this regard, in an embodiment, the front filter element 23 is further disposed in front of the variable-frequency booster pump 1, where the front filter element 23 may be a filter element, as shown in fig. 3, or may be a plurality of filter elements connected in series, as shown in fig. 4, a composite filter element and a carbon limiting filter element connected in series, where the plurality of filter elements connected in series have a better filtering effect. By arranging the pre-filter element 23, large-particle solid impurities in the source water can be removed, the quality of the source water is improved, and the frequency of the variable-frequency booster pump 1 and the backwashing frequency of the RO filter element 2 are further reduced.

In a preferred embodiment, as shown in fig. 3 and 4, the high-pressure water flow switch 16 is further provided with a rear filter element 24, the rear filter element 24 is an activated carbon filter element, the output ends of the rear filter element 24 are respectively communicated with the cold water output pipe 7 and the hot water output pipe 8, and the purification effect of the rear filter element 24 can make the quality of pure water higher, so as to meet the requirement of users on higher water quality.

The instant heating type water purifier with the structure is easy to cause that the water quality of the first cup of water does not reach the standard when the water is not used for a long time and the water stops working for a long time, so that the user experience is reduced. In this regard, in one embodiment, as shown in fig. 5, a proportional control valve 19 is further disposed between the RO filter element 2 and the high-pressure water flow switch 16, the proportional control valve 19 is provided with a water inlet end, which is communicated with the pure water outlet of the RO filter element 2, and two output ports are further provided, wherein the first output port is communicated with the pure water output pipeline 4, the second output port is communicated with the input end of the variable-frequency booster pump 1 through a pipeline, and the proportional control valve 19 is electrically connected with the controller. In the specific implementation process, when the water purifier is not used for a long time and is stopped for a long time and does not work, the proportional control valve 19 can close the first output port and enable the generated pure water to return to the input end of the variable-frequency booster pump 1 along the second output port, so that the pure water is filtered again, and unqualified first cup of water is avoided. And when the water reaches the standard after the operation is carried out for a certain time, the second output port is closed, the first output port is communicated, and pure water generated by the RO filter element 2 can be normally output.

In summary, according to the instant water purifier disclosed by the utility model, the power of the variable-frequency heating mechanism is adjusted by arranging the variable-frequency heating mechanism, arranging the first temperature sensor and the flow sensor in front of the variable-frequency heating mechanism and arranging the second temperature sensor behind the variable-frequency heating mechanism, and the purpose of keeping the temperature of hot water outlet constant is achieved by monitoring the water temperature and the flow before and after heating.

It should be noted that, in the description of the embodiments of the present utility model, the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "left", "right", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.

Claims (8)

1. The utility model provides an instant heating type water purifier, includes frequency conversion booster pump, RO filter core, controller, frequency conversion booster pump and controller electric connection, the pure water exit linkage of RO filter core has cold water output tube and instant heating output tube, its characterized in that, instant heating output tube is equipped with frequency conversion heating mechanism, be equipped with first temperature sensor and first flowmeter before the frequency conversion heating mechanism, be equipped with second temperature sensor behind the frequency conversion heating mechanism, first temperature sensor, second temperature sensor and first flowmeter all with controller electric connection.

2. The instant heating type water purifier according to claim 1, wherein a high-pressure water flow switch is further arranged on a pipeline connected with the pure water outlet, and the high-pressure water flow switch is electrically connected with the controller and can transmit different signals to the controller according to the water pressure and water flow condition of the pure water outlet.

3. The instant heating water purifier of claim 2, wherein a brushless variable frequency pump is further disposed between the first temperature sensor and the first flowmeter, and the brushless variable frequency pump is electrically connected to the controller.

4. An instant heating water purifier according to claim 3, wherein a zero pressure valve is further provided in front of the brushless variable frequency pump.

5. The instant heating type water purifier according to claim 3, wherein a first water quality sensor is further arranged in front of the variable-frequency booster pump, a second water quality sensor is further arranged behind the high-pressure water flow switch, and the first water quality sensor and the second water quality sensor are electrically connected with the controller.

6. The instant heating water purifier of claim 5, wherein a proportional control valve is further arranged between the RO filter element and the high-pressure water flow switch, one of the output pipelines of the proportional control valve is communicated with the input end of the variable-frequency booster pump, and the proportional control valve is electrically connected with the controller.

7. The instant heating water purifier of claim 6, wherein a pre-filter element is further arranged in front of the variable-frequency booster pump.

8. The instant heating water purifier of claim 6, wherein a post filter element is further arranged behind the high-pressure water flow switch, and the output end of the post filter element is respectively communicated with the cold water output pipe and the instant hot water output pipe.

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