CN110301827B - Water outlet control method of food processor - Google Patents
Water outlet control method of food processor Download PDFInfo
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- CN110301827B CN110301827B CN201910565223.5A CN201910565223A CN110301827B CN 110301827 B CN110301827 B CN 110301827B CN 201910565223 A CN201910565223 A CN 201910565223A CN 110301827 B CN110301827 B CN 110301827B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 356
- 238000000034 method Methods 0.000 title claims abstract description 48
- 235000013305 food Nutrition 0.000 title claims abstract description 22
- 238000005086 pumping Methods 0.000 claims abstract description 123
- 238000010438 heat treatment Methods 0.000 claims abstract description 107
- 239000008236 heating water Substances 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
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- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
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- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/542—Continuous-flow heaters
- A47J31/545—Control or safety devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
Abstract
The embodiment of the invention discloses a water outlet control method of a food processor, wherein the food processor comprises the following steps: the water pump and the flowmeter are arranged on the pipeline, the pipeline comprises an instant heating pipe and is used for heating water flowing through the pipeline, the instant heating pipe is arranged at a water outlet of the pipeline, the flowmeter is arranged between the water pump and the instant heating pipe, and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe; the method comprises the following steps: detecting the water flow in the pipeline in real time through a flowmeter during the water pumping of the water pump; when the detected water flow is smaller than or equal to a preset flow threshold value, detecting the water temperature collected by a temperature sensor; and when the water temperature is greater than or equal to the preset temperature threshold value, adjusting the water pumping speed of the water pump and/or the heating power of the heat pipe to increase the water flow. Through the scheme of the embodiment, false alarm is reduced, and the water outlet temperature is ensured.
Description
Technical Field
The embodiment of the invention relates to a household appliance control technology, in particular to a water outlet control method of a food processor.
Background
The existing part of food processing machines, such as a soybean milk machine, increases the instant drinking function by additionally arranging a water path, adopts instant heating direct hot water, is used for making soybean milk on the one hand, saves the time required by heating normal-temperature water, and simultaneously, if needing direct drinking, the instant drinking water is discharged through the additionally arranged water path.
In order to ensure that hot water can be discharged in time, the heating pipe is preheated firstly, after the heating pipe is preheated to a certain degree, water is pumped from the water tank to the pipeline, the preheating time is preheated according to the water temperature of the water inlet of the heating pipe and the set target temperature, namely the lower the water temperature of the water inlet, the longer the preheating time, the higher the water temperature of the water inlet, the shorter the preheating time, and the flow control is carried out according to the set target temperature, after the preheating is finished, normal-temperature water is pumped from the water pump to realize instant water discharge and participate in the subsequent pulping process, but if the water temperature of the water inlet is low and the set target water temperature is higher, the long-time preheating is carried out, and the flow rate control is relatively lower, the preheating is finished under the working condition, if water is pumped from the water pump and enters the heating pipeline, the water temperature is increased to generate a large amount of steam, as shown in figure 1 (point A is an inlet of the heating pipe, point B is the temperature sensor in the heating tube, point C is the export of heating tube), especially when point C is in the state of closing out water, the pressure increase of point A, if there is remaining water in the pipeline, then the pressure of point A will further increase, so steam in the pipeline can produce reverse atmospheric pressure, reverse effort can probably make the water in the water pump pipeline can not effectively pump out to just lead to the flowmeter to detect the water yield and become invalid, the system will produce the wrong report police this moment, influence user's slurrying experience.
Disclosure of Invention
The embodiment of the invention provides a water outlet control method of a food processor, which can reduce false alarms and ensure the water outlet temperature.
To achieve the object of the embodiments of the present invention, the embodiments of the present invention provide a water outlet control method for a food processor, the food processor including: the water pump and the flowmeter are arranged on the pipeline, the pipeline comprises an instant heating pipe and is used for heating water flowing through the pipeline, the instant heating pipe is arranged at a water outlet of the pipeline, the flowmeter is arranged between the water pump and the instant heating pipe, and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe; the method comprises the following steps:
detecting the water flow in the pipeline in real time through the flowmeter during the water pumping of the water pump;
when the detected water flow is smaller than or equal to a preset flow threshold value, detecting the water temperature collected by the temperature sensor;
and when the water temperature is greater than or equal to a preset temperature threshold value, adjusting the water pumping speed of the water pump and/or the heating power of the heat pipe to increase the water flow.
In an exemplary embodiment of the present invention, the adjusting of the pumping speed of the water pump may include: and increasing the water pumping speed of the water pump by a first preset speed so as to adjust the water pumping speed from the current first water pumping speed to a second water pumping speed, and keeping the second water pumping speed for a first preset time.
In an exemplary embodiment of the present invention, the method may further include: after the second water pumping speed is kept for the first preset duration, if the current water flow is detected to be still smaller than or equal to the flow threshold, the water pumping speed of the water pump is increased by a second preset speed, so that the water pumping speed is adjusted to a third water pumping speed from the second water pumping speed, and the third water pumping speed is kept for a second preset duration.
In an exemplary embodiment of the present invention, the method may further include: and after keeping the third water pumping speed for a second preset time, if the current water flow is detected to be still less than or equal to the flow threshold value, stopping water pumping and carrying out fault alarm.
In an exemplary embodiment of the present invention, the method may further include: and if the current water flow is detected to be larger than the flow threshold value, adjusting the water pumping speed back to the first water pumping speed.
In an exemplary embodiment of the present invention, the first preset speed and the second preset speed may be both 15% to 30% of the first pumping speed;
the first preset duration and the second preset duration both can satisfy: 3-5 seconds.
In an exemplary embodiment of the present invention, adjusting the heating power of the heat pipe may include: and reducing the heating power of the instant heat pipe by a first preset power so as to adjust the heating power from the current first heating power to a second heating power.
In an exemplary embodiment of the present invention, the method may further include: and increasing the water pumping time of the water pump.
In an exemplary embodiment of the present invention, the second heating power is 0, and the method may further include:
after the heating power is adjusted to be 0 to close the instant heat pipe, closing the water pump and waiting for a third preset time;
after the third preset time, controlling the water pump to pump water at the initial water pumping speed for a fourth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
when the water flow is detected to be smaller than or equal to the flow threshold, controlling the water pump to continue to pump water at the initial water pumping speed, and controlling the instant heat pipe to start heating at the first heating power; when the water flow is detected to be larger than the flow threshold, closing the water pump and waiting for a fifth preset time; after the fifth preset time, controlling the water pump to pump water at the initial water pumping speed for a sixth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
and when the waiting processing times reach a preset time threshold value and the water flow is still detected to be larger than the flow threshold value, performing fault alarm.
In an exemplary embodiment of the present invention, the second heating power is less than or equal to 50% of the first heating power; the water pumping time of the water pump is more than or equal to twice of the initial water pumping time.
The beneficial effects of the embodiment of the invention can include:
1. the food processor of the embodiment of the invention comprises: the water pump and the flowmeter are arranged on the pipeline, the pipeline comprises an instant heating pipe and is used for heating water flowing through the pipeline, the instant heating pipe is arranged at a water outlet of the pipeline, the flowmeter is arranged between the water pump and the instant heating pipe, and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe; the method comprises the following steps: detecting the water flow in the pipeline in real time through the flowmeter during the water pumping of the water pump; when the detected water flow is smaller than or equal to a preset flow threshold value, detecting the water temperature collected by the temperature sensor; and when the water temperature is greater than or equal to a preset temperature threshold value, adjusting the water pumping speed of the water pump and/or the heating power of the heat pipe to increase the water flow. Through the scheme of the embodiment, whether the steam in the current pipeline is too much or not can be judged by combining the water flow and the water temperature, so that reasonable treatment measures are taken when the steam is too much, false alarm is reduced, and the outlet water temperature is ensured.
2. The adjusting of the water pumping speed of the water pump according to the embodiment of the present invention may include: and increasing the water pumping speed of the water pump by a first preset speed so as to adjust the water pumping speed from the current first water pumping speed to a second water pumping speed, and keeping the second water pumping speed for a first preset time. Through this embodiment scheme, promote the velocity of flow of pump, and then the power of drawing water of elevator pump, because preheat the steam that produces, lead to the pipeline internal pressure grow, the power of drawing water of pump is not enough to go into the pipeline with the water pump in the water tank and gets into when the heat pipe promptly, through the elevator pump speed, improves the power of drawing water of pump for the pressure that produces in the pipeline is offset to the power of drawing water of water pump, and then can normal pumping.
3. The method of the embodiment of the present invention may further include: after the second water pumping speed is kept for the first preset duration, if the current water flow is detected to be still smaller than or equal to the flow threshold, the water pumping speed of the water pump is increased by a second preset speed, so that the water pumping speed is adjusted to a third water pumping speed from the second water pumping speed, and the third water pumping speed is kept for a second preset duration. Through the scheme of the embodiment, the effectiveness of the scheme is ensured through twice pump speed promotion, and false alarm is further avoided.
4. The method of the embodiment of the present invention may further include: and after keeping the third water pumping speed for a second preset time, if the current water flow is detected to be still less than or equal to the flow threshold value, stopping water pumping and carrying out fault alarm. Through the scheme of the embodiment, the fault can be detected in time, and damage to the food processor caused by continuous water pumping is avoided.
5. The method of the embodiment of the present invention may further include: and if the current water flow is detected to be larger than the flow threshold value, adjusting the water pumping speed back to the first water pumping speed. Through the embodiment scheme, the power consumption can be reduced on the basis of ensuring the flow rate of the pumping water.
6. Adjusting the heating power of the heat pipe according to the embodiment of the present invention may include: and reducing the heating power of the instant heat pipe by first preset power so as to adjust the heating power from the current first heating power to second heating power, and keeping the second heating power for a third preset time. Through this embodiment scheme, through the reduction of heating power, further reduce the production of steam in the pipeline, be favorable to the unobstructed pump water of water pump.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the application do not constitute a limitation of the embodiments of the invention.
FIG. 1 is a schematic view of a conventional heating tube;
FIG. 2 is a schematic diagram of an instant hot water supply system of a food processor according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for controlling water output of a food processor according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a method for controlling water output of a food processor according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Example one
An embodiment of the present invention provides a water outlet control method for a food processor, as shown in fig. 2, the food processor may include: the water pump and the flowmeter are arranged on the pipeline, the pipeline comprises an instant heating pipe and is used for heating water flowing through the pipeline, the instant heating pipe is arranged at a water outlet of the pipeline, the flowmeter is arranged between the water pump and the instant heating pipe, and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe; as shown in fig. 3, the method may include S101-S103:
s101, detecting the water flow in the pipeline in real time through the flowmeter during the water pumping period of the water pump;
s102, when the water flow is detected to be smaller than or equal to a preset flow threshold value, detecting the water temperature collected by the temperature sensor;
s103, when the water temperature is larger than or equal to a preset temperature threshold value, adjusting the water pumping speed of the water pump and/or the heating power of the heat pipe to increase the water flow.
It is known that in the existing heating scheme of the heat pipe, if water is pumped from a water pump and enters a heating pipeline, a large amount of steam is generated due to increase of water temperature, particularly, when a point C shown in fig. 1 is in a state of closing water outlet, pressure at a point a is increased, and if residual water exists in the pipeline, pressure at the point a is further increased, so that steam in the pipeline generates reverse air pressure, reverse acting force can possibly cause water in the pipeline of the water pump to be not effectively pumped out, thereby causing failure of water detection of a flow meter, and a false alarm can be generated by a system at the moment, so that pulping experience of a user is influenced.
In an exemplary embodiment of the present invention, based on the above problems, when hot water is produced, water flow rate can be detected in real time in the process of pumping water by the water pump, and in combination with detecting water temperature (because a large amount of steam is rapidly generated only when the water temperature reaches a certain temperature, and when the water temperature is low, the amount of steam is small, so that too large back pressure is not caused, and thus water flow is not easily blocked), when the flow rate is not detected by the flow meter, and when the water temperature is high, the water pumping speed of the water pump can be increased and/or the heating power of the heat pipe can be reduced.
In an exemplary embodiment of the present invention, in the implementation of the above scheme, the water flow rate may be detected first, the water temperature may be detected first, or both the water flow rate and the water temperature are detected simultaneously, and when both the detection results satisfy the above conditions (the water flow rate is less than or equal to the preset flow threshold, and the water temperature is greater than or equal to the preset temperature threshold), it is determined that the water flow compensation is currently caused by too much steam, so that the pumping water speed and/or the heating power may be adaptively adjusted.
In an exemplary embodiment of the present invention, if it is detected that the water flow is less than or equal to the preset flow threshold, but the water temperature is less than the preset temperature threshold, the water temperature may be detected multiple times to prevent false detection, and if the multiple detection results indicate that the water temperature is less than the preset temperature threshold, it may be determined that there is a possibility of a water pump failure or a water outlet blockage, and at this time, a failure alarm may be performed.
In an exemplary embodiment of the invention, if it is detected that the water flow is greater than the preset flow threshold, indicating that the current water flow is unblocked, the water temperature may never be detected, and the instant water processing process is continuously performed according to the current or preset water pumping speed and heating power.
In the exemplary embodiment of the invention, through the scheme of the embodiment, whether the steam in the current pipeline is too much can be judged by combining the water flow and the water temperature, so that reasonable treatment measures are taken when the steam is too much is judged, false alarms are reduced, and the outlet water temperature is ensured.
Example two
The embodiment is based on the first embodiment, and as shown in fig. 4, a specific embodiment scheme for adjusting the water pumping speed of the water pump is provided.
In an exemplary embodiment of the present invention, the adjusting of the pumping speed of the water pump may include: and increasing the water pumping speed of the water pump by a first preset speed so as to adjust the water pumping speed from the current first water pumping speed to a second water pumping speed, and keeping the second water pumping speed for a first preset time.
In an exemplary embodiment of the invention, when the flow signal is not detected by the flow meter during the process of making hot water, the water pump pumps water, the flow rate of the water pump is increased from a first water pumping speed V1 to a second water pumping speed V2(V2> V1, V2< Vmax), wherein Vmax is the rated water pumping speed of the water pump, and meanwhile, the heat pipe can be controlled to heat at the initially set heating power Wa.
In an exemplary embodiment of the present invention, the first preset speed may be 15% -30% of the first pumping speed; for example, 20%.
In an exemplary embodiment of the invention, pump speed V2 (and subsequent pump speed V3), the single magnitude of increase is less than sufficient to produce a large pumping force, and possibly less than water; the single amplitude of improvement is great, and great flow can make the temperature decline fast, and hot-water temperature just can not reach the temperature of settlement promptly, influences user experience. Therefore, the pumping speed is increased by 15-30% in a single time, the pumping force of the water pump can be ensured, and the temperature of the discharged water can not fluctuate greatly.
In an exemplary embodiment of the present invention, the first preset time period may satisfy: 3-5 seconds.
In the exemplary embodiment of the present invention, if the operation time (e.g., the first preset time) Ta of the water pump after the pump speed is increased is too long, if the water tank is in a water-out state, the longer the heating time with the original heating power is, the temperature generated by dry heating may cause the temperature control device at A, C two points to operate. If Ta is too small, it will not be conducive to reliable detection of the flow meter. Therefore, by limiting the time length of Ta, even a time length accumulated for a plurality of times (for example, class plus the second preset time length in the subsequent scheme) can guarantee that the temperature control device at A, C two points can not be operated, and the reliable detection of the flowmeter is guaranteed.
In the exemplary embodiment of the present invention, as can be seen from the above analysis, the current pump speed (first pump speed) V1 can be increased by 20%, resulting in the second pump speed V2, i.e., V2 is 1.2V1, and operated at the pump speed of V2 for Ta seconds.
In an exemplary embodiment of the present invention, the method may further include: after the second water pumping speed is kept for the first preset duration, if the current water flow is detected to be still smaller than or equal to the flow threshold, the water pumping speed of the water pump is increased by a second preset speed, so that the water pumping speed is adjusted to a third water pumping speed from the second water pumping speed, and the third water pumping speed is kept for a second preset duration.
In an exemplary embodiment of the present invention, the method may further include: and if the current water flow is detected to be larger than the flow threshold value, adjusting the water pumping speed back to the first water pumping speed.
In an exemplary embodiment of the invention, after operating at the V2 pump speed for Ta seconds, it may be determined whether the flow meter is able to normally detect flow, and once it is detected that the flow has returned to normal (e.g., the current flow is greater than the flow threshold), the set initial pump speed V1 may be returned.
In an exemplary embodiment of the present invention, the second preset speed may be 15% -30%, for example 20%, of the first pumping speed; the second preset duration may satisfy: 3-5 seconds.
In the exemplary embodiment of the present invention, if the increased pump speed V2 still fails to enable the flow meter to normally detect the flow rate, the pump speed may be further increased by 20%, a third pump speed V3, i.e., V3 ═ 1.4V1, may be obtained, and may operate at the pump speed V1 for Ta seconds (a second preset time period), and once it is detected that the flow rate has returned to normal (e.g., the current water flow rate is greater than the flow rate threshold), may return to the set initial pump speed V1.
In an exemplary embodiment of the present invention, the method may further include: and after keeping the third water pumping speed for a second preset time, if the current water flow is detected to be still less than or equal to the flow threshold value, stopping water pumping and carrying out fault alarm.
In an exemplary embodiment of the invention, if the increased pump speed V3 fails to allow the flow meter to properly detect flow, a malfunction alert may be provided.
In the exemplary embodiment of the present invention, if the pump speed after two (including but not limited to two times, and may be more) pump speed increases still fails to meet the flow meter detection, it may be regarded as a fault, and a fault alarm prompt may be performed to remind the user to add water to the water tank.
EXAMPLE III
The embodiment provides a specific embodiment scheme for adjusting the heating power of the heat pipe on the basis of the first embodiment or the second embodiment.
In an exemplary embodiment of the present invention, adjusting the heating power of the heat pipe may include: the heating power of the instant heat pipe is reduced by a first preset power W1 to adjust the heating power from the current first heating power to a second heating power W2.
In the exemplary embodiment of the invention, in the process of manufacturing hot water and pumping water by the water pump, when the flow meter cannot detect the flow, the heating power of the heat pipe can be reduced, and the water pump can be synchronously and continuously performed.
In an exemplary embodiment of the present invention, when the flow meter cannot detect the flow rate, the heating power (first heating power) W1 of the heat pipe may be reduced. At this time, the water pump may be controlled to pump water at the initial pump speed, that is, the first pump speed V1, or the flow rate of the flow meter may be detected during the pump speed of V2 — 1.2V1 for Tb seconds, and once the flow rate is detected, the water pump may be returned to the set pump speed (first pump speed) V1; otherwise, fault alarm prompt can be carried out.
In an exemplary embodiment of the present invention, the method may further include: and increasing the water pumping time of the water pump.
In exemplary embodiments of the present invention, Tb may be greater than or equal to Ta.
In the exemplary embodiment of the invention, the generation of steam in the pipeline is further reduced through the reduction of the heating power, the smooth pumping of the water pump is facilitated, meanwhile, if the heating is continuously carried out at the current heating power, the steam in the pipeline is possibly further aggravated, but the instant heating pipe cannot be continuously heated by anhydrous dry heating, otherwise, the temperature control device can be operated at a higher temperature, so that in the process of pumping water, if the flow is detected, the next step is carried out, and if the flow cannot be detected continuously in Tb seconds, the fault alarm prompt can be carried out.
Example four
This embodiment is based on the third embodiment, and shows a selected embodiment of the definition of the second heating power W2 and the water pumping operation time Tb.
In an exemplary embodiment of the invention, the second heating power W2 is less than or equal to 50% of the first heating power W1; and the water pumping time Tb of the water pump is more than or equal to twice of the time of the initial water pumping Ta.
In an exemplary embodiment of the invention, W2 ≦ W1 × 50% may be taken. Not considering the heating loss of the heat pipe, Tb ≧ 2 × Ta can be obtained by approximating W1 × Ta to W2 × Tb.
In the exemplary embodiment of the present invention, in order to avoid that the heating is continued with the original heating power W1, the generation of steam in the pipeline may be increased, and if the reduction amplitude is small, the effect of reducing the pressure in the pipeline may not be achieved, so that W2 ≦ W1 × 50% may be adopted, and by increasing the operation time of the water pump, for example, to Tb, the probability that the flow rate is detected by the flow meter is increased, and the probability that dry burning of the heating pipe occurs is further reduced.
Example four
This embodiment is based on the second or third embodiment, and shows the embodiment scheme of turning off the heating first, then waiting for the time T, and pumping water at intervals.
In an exemplary embodiment of the present invention, the second heating power is 0, and the method may further include:
after the heating power is adjusted to be 0 to close the instant heat pipe, closing the water pump and waiting for a third preset time;
after the third preset time, controlling the water pump to pump water at the initial water pumping speed for a fourth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
when the water flow is detected to be smaller than or equal to the flow threshold, controlling the water pump to continue to pump water at the initial water pumping speed, and controlling the instant heat pipe to start heating at the first heating power; when the water flow is detected to be larger than the flow threshold, closing the water pump and waiting for a fifth preset time; after the fifth preset time, controlling the water pump to pump water at the initial water pumping speed for a sixth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
and when the waiting processing times reach a preset time threshold value and the water flow is still detected to be larger than the flow threshold value, performing fault alarm.
In an exemplary embodiment of the present invention, when the flow meter cannot detect the flow rate, the heat pipe may be turned off (i.e., the second heating power is set to 0), the heating is stopped, the water pumping is stopped, and then the waiting is performed for a time period T (i.e., a third preset time period), where T may be selected from 3 to 5s, for example, 5s is selected.
In an exemplary embodiment of the present invention, after the waiting time period T, the water pump may be controlled to monitor the flow rate of the flow meter at an initial water pumping speed (the first water pumping speed V1) or at an increased water pumping speed, for example, the second water pumping speed V2 for 3-5s (a fourth preset time period), while recording that 1 waiting time has elapsed for treatment, and if a flow rate is detected during the water pumping, proceeding to the next step; if the flow cannot be detected, continuing to wait for a fifth preset time duration, for example, the time duration may still be the time duration T, and T may be selected to be 5 s; the flow rate is continuously detected, 1 waiting treatment is recorded, and once the flow rate is detected in the process, the set pump speed V1 (namely the initial pump speed, or the first pump speed) is recovered. And continuously recording for a plurality of times, for example 3 times of waiting treatment, and if water is not detected, performing fault alarm prompt.
In the exemplary embodiment of the invention, when the flow is not detected, the heating is turned off, the pressure generated by steam in the pipeline is reduced to the maximum extent, meanwhile, the pressure in the pipeline is released as soon as possible in a natural normal temperature cooling mode, and when water is pumped again, the water pumping capacity can be recovered as soon as possible. In order to ensure a certain outlet water temperature, the waiting time is not longer, otherwise, after waiting for a long period of time, the outlet water temperature cannot be adjusted in the process of pumping water again, and the integral outlet water temperature is reduced.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (10)
1. A method of controlling water output of a food processor, the food processor comprising: the water pump and the flowmeter are arranged on the pipeline, the pipeline comprises an instant heating pipe and is used for heating water flowing through the pipeline, the instant heating pipe is arranged at a water outlet of the pipeline, the flowmeter is arranged between the water pump and the instant heating pipe, and the temperature sensor is arranged in the instant heating pipe and is used for collecting the water temperature in the instant heating pipe; the method comprises the following steps:
detecting the water flow in the pipeline in real time through the flowmeter during the water pumping of the water pump;
when the detected water flow is smaller than or equal to a preset flow threshold value, detecting the water temperature collected by the temperature sensor;
and when the water temperature is greater than or equal to a preset temperature threshold value, adjusting the water pumping speed of the water pump and the heating power of the instant heat pipe to increase the water flow.
2. The method of claim 1, wherein the adjusting the pumping speed of the pump comprises: and increasing the water pumping speed of the water pump by a first preset speed so as to adjust the water pumping speed from the current first water pumping speed to a second water pumping speed, and keeping the second water pumping speed for a first preset time.
3. The method of controlling water output of a food processor of claim 2, further comprising: after the second water pumping speed is kept for the first preset duration, if the current water flow is detected to be still smaller than or equal to the flow threshold, the water pumping speed of the water pump is increased by a second preset speed, so that the water pumping speed is adjusted to a third water pumping speed from the second water pumping speed, and the third water pumping speed is kept for a second preset duration.
4. The method of controlling water output of a food processor of claim 3, further comprising: and after keeping the third water pumping speed for a second preset time, if the current water flow is detected to be still less than or equal to the flow threshold value, stopping water pumping and carrying out fault alarm.
5. The method of controlling water output of a food processor as claimed in claim 3 or 4, further comprising: and if the current water flow is detected to be larger than the flow threshold value, adjusting the water pumping speed back to the first water pumping speed.
6. The method of claim 4, wherein the first predetermined speed and the second predetermined speed are both 15% to 30% of the first pumping speed;
the first preset duration and the second preset duration both satisfy: 3-5 seconds.
7. The method of any one of claims 1-4, wherein adjusting the heating power of the instant tube comprises: and reducing the heating power of the instant heat pipe by a first preset power so as to adjust the heating power from the current first heating power to a second heating power.
8. The method of controlling water output of a food processor of claim 7, further comprising: and increasing the water pumping time of the water pump.
9. The method of claim 7, wherein the second heating power is 0, the method further comprising:
after the heating power is adjusted to be 0 to close the instant heat pipe, closing the water pump and waiting for a third preset time;
after the third preset time, controlling the water pump to pump water at the initial water pumping speed for a fourth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
when the water flow is detected to be smaller than or equal to the flow threshold, controlling the water pump to continue to pump water at the initial water pumping speed, and controlling the instant heat pipe to start heating at the first heating power; when the water flow is detected to be larger than the flow threshold, closing the water pump and waiting for a fifth preset time; after the fifth preset time, controlling the water pump to pump water at the initial water pumping speed for a sixth preset time, detecting the water flow in real time through the flowmeter, and adding 1 to the waiting treatment times;
and when the waiting processing times reach a preset time threshold value and the water flow is still detected to be larger than the flow threshold value, performing fault alarm.
10. The method of claim 8, wherein the second heating power is less than or equal to 50% of the first heating power;
the water pumping time of the water pump is more than or equal to twice of the initial water pumping time.
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| CN113273900A (en) * | 2020-02-20 | 2021-08-20 | 九阳股份有限公司 | Control method of food processing machine |
| CN112303927B (en) * | 2020-10-30 | 2022-08-05 | 纯米科技(上海)股份有限公司 | Water outlet temperature adjusting method and device |
| CN116965685A (en) * | 2022-04-29 | 2023-10-31 | 佛山市顺德区美的饮水机制造有限公司 | Instant heating water dispenser, water outlet temperature control method and device thereof and storage medium |
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