CN114680622B - Water supply system, water supply control method of water supply system and water dispenser - Google Patents

Water supply system, water supply control method of water supply system and water dispenser Download PDF

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Publication number
CN114680622B
CN114680622B CN202210461783.8A CN202210461783A CN114680622B CN 114680622 B CN114680622 B CN 114680622B CN 202210461783 A CN202210461783 A CN 202210461783A CN 114680622 B CN114680622 B CN 114680622B
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China
Prior art keywords
water
water supply
temperature
water outlet
heat exchange
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CN114680622A (en
Inventor
张量
周曌
李友铃
李文灿
宁贵勇
董小虎
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202210461783.8A priority Critical patent/CN114680622B/en
Publication of CN114680622A publication Critical patent/CN114680622A/en
Priority to PCT/CN2022/140961 priority patent/WO2023207157A1/en
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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
    • 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
    • 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
    • A47J31/4403—Constructional details
    • 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

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Temperature (AREA)

Abstract

The application relates to a water supply system, a control method of the water supply system and a water dispenser. The water supply system includes: a water supply device; the water inlet end of the heating device is connected with the water outlet end of the water supply device; the controller is electrically connected with the heating device and used for controlling the heating device to heat the water supply to a target heating temperature; the hot fluid water inlet end of the heat exchange device is connected with the water outlet of the heating device, and the hot fluid water outlet end of the heat exchange device is connected to the water supply system outlet; the cooling water inlet end of the heat exchange device is connected with the water outlet end of the water supply device, and the cooling water outlet end is connected with the water inlet end of the heating device; and cooling the heated water supply to the target water outlet temperature through the heat exchange device. The water supply system can improve water supply efficiency.

Description

Water supply system, water supply control method of water supply system and water dispenser
Technical Field
The application relates to the technical field of water equipment, in particular to a water supply system, a control method of the water supply system and a water dispenser.
Background
With the development of water equipment technology, various water supply equipment is commercially available to meet the demands of users, wherein the water supply equipment comprises a table type water purifying machine, when users have the demands of water, the water can be heated to boiling temperature and then cooled to the user demand temperature, so that the habit of drinking after the users boiled water and naturally cooled to the preference temperature is met.
However, the current table-type water purifying and drinking machine has a longer time from heating normal-temperature water to boiling temperature and then reducing the boiling temperature to the required temperature, which finally results in incapability of providing required water for users in time.
Disclosure of Invention
In view of the above, it is desirable to provide a water supply system, a water supply control method of the water supply system, and a water dispenser capable of improving water supply efficiency.
In a first aspect, the present application provides a water supply system comprising:
a water supply device;
the water inlet end of the heating device is connected with the water outlet end of the water supply device;
the controller is electrically connected with the heating device and used for controlling the heating device to heat the water supply to a target heating temperature;
the hot fluid water inlet end of the heat exchange device is connected with the water outlet of the heating device, and the hot fluid water outlet end of the heat exchange device is connected to the water supply system outlet; the cooling water inlet end of the heat exchange device is connected with the water outlet end of the water supply device, and the cooling water outlet end is connected with the water inlet end of the heating device; and cooling the heated water supply to the target water outlet temperature through the heat exchange device.
In one embodiment, the water supply system comprises a regulating valve arranged at the water outlet end of the water supply device, the regulating valve is respectively connected with the water inlet end of the heating device and the cooling water inlet end of the heat exchange device, and the regulating valve regulates the flow ratio of the water inlet of the heating device to the water inlet of the heat exchange device;
The controller is electrically connected with the regulating valve and the water supply device, and the controller regulates the flow ratio according to the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system so as to enable the cooled water outlet temperature output by the heat exchange device to be matched with the target water outlet temperature.
In one embodiment, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system is proportional to the flow ratio of the water inlet of the heating device to the water inlet of the heat exchange device.
In one embodiment, the temperature difference and the flow ratio are in a mapping relationship, and the controller determines the flow ratio corresponding to the temperature difference according to the mapping relationship.
In one embodiment, the water supply system further comprises a water supply pump arranged on the water outlet end of the water supply device, the water supply pump is electrically connected with the controller, and the controller determines the initial water supply flow of the water supply pump according to the maximum power of the heating device, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system, and the thermal conversion efficiency of the heating device.
In one embodiment, the water supply system further comprises a first temperature sensing bulb, wherein the first temperature sensing bulb is arranged at the water outlet of the water supply system or the water outlet of the heating device; the first temperature sensing bulb is electrically connected with the controller, and the controller adjusts the initial water supply flow of the water supply pump according to a first temperature value detected by the first temperature sensing bulb so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature.
In one embodiment, the first temperature value detected by the first bulb is proportional to an initial water supply flow rate of the water supply pump.
In one embodiment, the water supply system further comprises a second temperature sensing bulb arranged at the water outlet end of the water supply device, the second temperature sensing bulb is electrically connected with the controller, and the controller determines the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system according to the second temperature value detected by the second temperature sensing bulb.
In one embodiment, the water supply device comprises a raw water tank, a raw water pump, a purifying filter element, a waste water electromagnetic valve and a purifying water tank;
the raw water outlet end of the raw water tank is connected with the raw water pump, the raw water pump is connected with the purification filter element, the purification filter element is connected with the water purification tank and the waste water electromagnetic valve, and the waste water electromagnetic valve is connected with the waste water inlet of the raw water tank;
The controller is electrically connected with the raw water pump, the purifying filter element and the wastewater electromagnetic valve.
In one embodiment, the water supply system further comprises a two-channel solenoid valve; the double-channel electromagnetic valve is electrically connected with the controller;
the water outlet of the heating device is connected with the hot fluid water inlet end of the heat exchange device through one end of the double-channel electromagnetic valve, and the water outlet of the heating device is connected with the water supply system outlet through the other end of the double-channel electromagnetic valve.
In a second aspect, the present application also provides a water supply control method applied to a water supply system, the water supply control method of the water supply system including: obtaining a target water outlet temperature corresponding to the water outlet instruction; responding to the water outlet instruction, providing water for the heating device based on the water supply device, and providing cooling water for the heat exchange device; and controlling the heating device to heat the water supply to a target heating temperature, performing heat exchange on the heated water supply through the heat exchange device, and cooling to the target water outlet temperature.
In one embodiment, the method further comprises: acquiring the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system; and controlling the flow ratio of the regulating valve according to the temperature difference so as to enable the cooled outlet water temperature output by the heat exchange device to be matched with the target outlet water temperature.
In one embodiment, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system is proportional to the flow ratio of the water inlet of the heating device to the water inlet of the heat exchange device.
In one embodiment, the temperature difference and the flow ratio are in a mapping relationship; according to the temperature difference, controlling the flow ratio of the regulating valve, comprising: and determining the flow ratio of the regulating valve based on the mapping relation between the temperature difference and the flow ratio.
In one embodiment, the method further comprises: obtaining the maximum power of the heating device, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system and the heat conversion efficiency of the heat exchange device; and determining an initial water supply flow rate of the water supply pump based on the maximum power, the outlet water temperature, the temperature difference and the heat conversion efficiency.
In one embodiment, the method further comprises: acquiring a first temperature value detected by a first temperature sensing bulb; and according to the first temperature value, adjusting the initial water supply flow of the water supply pump to enable the cooled water outlet temperature output by the heat exchange device to be matched with the target water outlet temperature.
In one embodiment, the first temperature value detected by the first bulb is proportional to an initial water supply flow rate of the water supply pump.
In a third aspect, the present application further provides a water dispenser, including the above water supply system.
According to the water supply system, the water supply control method of the water supply system and the water dispenser, after the heating device heats water supply, the heated water is sent to the hot fluid water inlet end of the heat exchange device, and is cooled to the target water outlet temperature through heat exchange for a user to use, if the water supply is heated to boiling, the water is cooled to warm water through heat exchange, and cool white meeting requirements is provided for the user. On the other hand, the cooling water of the heat exchange device rises in temperature in the heat exchange process and is sent to the heating device for heating, that is, the water to be heated entering the heating device comprises normal-temperature water supply and cooling water participating in heat exchange, and the cooling water are mixed, so that the temperature of the water to be heated of the heating device is increased, the heating device can be heated to the target heating temperature with lower power, the efficiency is improved, and the waiting time is reduced.
Drawings
FIG. 1 is a block diagram of a water supply system in one embodiment;
FIG. 2 is a schematic diagram of a heat exchange device according to one embodiment;
FIG. 3 is a block diagram of a water supply system in one embodiment;
FIG. 4 is a block diagram of a water supply system in one embodiment;
FIG. 5 is a schematic diagram of a water supply system in one embodiment;
FIG. 6 is a schematic diagram of a water supply system in one embodiment;
FIG. 7 is a schematic diagram of a water supply system in one embodiment;
FIG. 8 is a flow chart of a method of controlling water supply to a water supply system according to one embodiment;
fig. 9 is an internal structural diagram of an electronic device in one embodiment.
Reference numerals illustrate: 100-a water supply device; 101-a heating device; 102-a controller; 103-heat exchange means; 104-a water inlet end of the heating device; 105-the water outlet end of the water supply device; 106, a water outlet of the heating device; 107-a hot fluid inlet end; 108-a water supply outlet; 109-cooling water inlet end; 110-cooling water outlet end; 111-a hot fluid outlet end; 202-a regulating valve; 302-a water supply pump; 501-a raw water tank; 502-a raw water self-priming pump; 503 purifying the filter element; 504-a clean water tank; 505-waste water solenoid valve; 506-a second bulb; 507-micropump; 508-a regulating valve; 509-a heat exchanger; 510-a two-channel electromagnetic valve; 511-a heating tube; 512-a first bulb; 513-a second inlet; 514-a first outlet; a second outlet 515; 516-first inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Meanwhile, the term used in the present specification includes any and all combinations of the items listed in association.
In one embodiment, a water supply system is provided that is suitable for use in a water purifier, water dispenser, or the like. As shown in fig. 1, the water supply system includes:
the water supply device 100, the water supply device 100 is connected with raw water, wherein the raw water can be added into the water supply device 100 in an automatic or artificial mode, the water supply device 100 can process the raw water to obtain normal-temperature purified water, so that normal-temperature purified water required by drinking can be provided for the heating device 101 and the heat exchange device 103, and the specific structure of the water supply device 100 can be corresponding to all different water qualities according to different raw water qualities. Specifically, when the raw water is drinking water quality, the water supply device 100 may be a non-purifying system, and when the raw water is non-drinking water quality, the water supply device 100 may also have a corresponding purifying system, and the raw water is purified by the purifying system, thereby satisfying the drinking standard.
The heating device 101, the water inlet end 104 of the heating device 101 is connected with the water outlet end 105 of the water supply device 100.
The heating device 101 may be a device for heating water, specifically, the heating device 101 may be a heating element with adjustable power, and the heating element may be a PTC (Positive Temperature Coefficient ) heating element, a rare earth thick film heating element, a metal heating tube, or the like, and heats and boils the purified water contacting the heating element by heating. The heating power of the heating element is controlled and regulated by the controller 102 according to the detected parameter (such as the temperature difference between the water outlet of the water supply device and the target heating temperature), and boiled purified water is input into the hot fluid water inlet end 107 of the heat exchange device 103 through the water outlet 106 of the heating device 101 by a pipeline, so that the boiled purified water can be cooled by the purified water in the heat exchange device 103.
The water flowing into the heating element for heating and boiling may be normal temperature water directly flowing out from the water outlet 105 of the water supply device 100, the water flowing into the heating element for heating and boiling may be water directly flowing out from the cooling water outlet 110 of the heat exchange device 103 and participating in heat exchange, the water flowing into the heating element for heating and boiling may be water mixed with normal temperature water flowing out from the water outlet 105 of the water supply device 100 and water flowing out from the cooling water outlet 110 of the heat exchange device 103 and participating in heat exchange.
And a controller 102 electrically connected to the heating device 101 and the water supply device 100, and controlling the heating device 101 to heat the water supply to a target heating temperature.
The controller 102 may adopt a control motherboard, and devices such as a CPU (Central Processing Unit ), an MCU (Micro Control Unit, micro control unit) and the like may be disposed on the control motherboard.
The target heating temperature refers to a temperature to be reached after the purified water is heated by the heating device 101, wherein the target heating temperature may be set according to a boiling temperature of the water, and in general, the target heating temperature is set to be above 90 °, and the target heating temperature is set to be 100 ° in the embodiment of the present application.
The heat exchange device 103, the hot fluid water inlet end 107 of the heat exchange device 103 is connected with the water outlet 106 of the heating device 101, and the hot fluid water outlet end 111 is connected with the water supply system outlet 108; the cooling water inlet end 109 of the heat exchange device 103 is connected with the water outlet end 105 of the water supply device, and the cooling water outlet end 110 is connected with the water inlet end 104 of the heating device 101; the heated water supply is cooled to a target water outlet temperature by the heat exchange device 103.
The heat exchange device 103 includes a cooling water inlet end 109, a cooling water outlet end 110, a hot fluid inlet end 107, and a hot fluid outlet end 111, and specifically, the heat exchange device may be a device adopting a heat exchange structure such as a heat exchanger.
The target water outlet temperature refers to a water temperature required by a user, specifically, the user can set the target water outlet temperature through an interaction device according to own requirements, the interaction device can send the target water outlet temperature to the controller 102 for storage, and the interaction device can be a key circuit or a touch screen. The user can also send the target water outlet temperature to the controller 102 for storage through terminal equipment such as a mobile phone and a remote controller, and after the target water outlet temperature is set, the user can also send a water taking signal to the controller 102 through the terminal equipment, and the controller 102 starts to execute water preparation operation after receiving the water taking signal.
In one embodiment, the heat exchange device 103 is a double-pipe heat exchange structure, as shown in fig. 2, which is a schematic structural diagram of the heat exchange device 103, a heat exchange metal inner pipe is arranged in the heat exchange device 103, the heat exchange metal inner pipe has a corrugated turbulence shape for enhancing the heat exchange effect, the metal inner pipe is placed in a curved path of the heat exchange device 103, on one hand, after normal-temperature purified water flowing out from the water outlet end 105 of the water supply device 100 is split, a part of the normal-temperature purified water flows into the cooling water inlet end 109 of the heat exchange device 103, normal-temperature purified water entering from the cooling water inlet end 109 flows into a curved path of the heat exchange device 103, flows on the outer wall of the heat exchange metal inner pipe, and finally flows out from the cooling water outlet end 110 of the heat exchange device 103. On the other hand, the water heated by the heating device 101 is sent to the hot fluid water inlet end 107 of the heat exchange device 103, and enters the metal inner tube, wherein the metal inner tube has a corrugated turbulent flow shape for enhancing the heat exchange effect, the heat exchange water enters the curve from the hot fluid water inlet end 107 and flows on the outer wall of the heat exchange metal inner tube, the boiling purified water is output by the hot fluid water outlet end 111 of the heat exchange device 103 for drinking by a user after heat exchange and temperature reduction, and the warmed heat exchange water is output by the cooling water outlet end 110 of the heat exchange device 103, mixed with the normal-temperature purified water output by the water outlet end 105 of the water supply device 100 and then output to the heating device 101 for reheating. Therefore, the heat exchange device 103 not only can cool the boiled water flowing into the heating device 101, so that the heat exchange effect can be achieved to obtain the target water outlet temperature, but also can improve the temperature of the water to be heated of the heating device by mixing, so that the heating device 101 can be heated to the target heating temperature with lower power, the efficiency is improved, and the waiting time is reduced.
Above-mentioned water supply system, heating device heats the back to supplying water, and the hot fluid water inlet of heat exchange device is sent to the water of heating device, cools down to target play water temperature through the heat exchange and supplies the user to use, if can heat supplying water to boiling, the rethread heat exchange cooling is warm water, provides the cool white opening that accords with the demand for the user. On the other hand, the cooling water of the heat exchange device rises in temperature in the heat exchange process and is sent to the heating device for heating, that is, the water to be heated entering the heating device comprises normal-temperature water supply and cooling water participating in heat exchange, and the cooling water are mixed, so that the temperature of the water to be heated of the heating device is increased, the heating device can be heated to the target heating temperature with lower power, the efficiency is improved, and the waiting time is reduced.
In one embodiment, referring to fig. 3, a block diagram of a water supply system in an embodiment is shown in fig. 3, where the water supply system in the embodiment further includes a regulating valve 202 disposed at the water outlet end 105 of the water supply device 100, where the regulating valve 202 is connected to the water inlet end 104 of the heating device 101 and the cooling water inlet end 109 of the heat exchange device 103, respectively, on the basis of the water supply system shown in fig. 1. The controller 102 is electrically connected to the regulator valve 202. The regulating valve 202 regulates the flow ratio of the inlet water of the heating device 101 to the inlet water of the heat exchanging device 103.
The regulating valve 202 may split normal-temperature purified water flowing out from the water outlet end of the water supply device, and after the normal-temperature purified water is split by the regulating valve 202, a part of the normal-temperature purified water directly flows to the heating device 101, and a part of the normal-temperature purified water flows into the heat exchange device 103.
The flow rate ratio refers to a ratio of a flow rate of the normal-temperature purified water flowing into the heating device 101 to a flow rate of the normal-temperature purified water flowing into the heat exchange device 103, and specifically, a positive flow rate ratio relationship may be set when the normal-temperature purified water flowing into the heating device 101 is more than the normal-temperature purified water flowing into the heat exchange device 103, and a negative flow rate ratio relationship may be set when the normal-temperature purified water flowing into the heating device 101 is less than the normal-temperature purified water flowing into the heat exchange device 103.
The adjusting valve 202 may include a plurality of gears, each of the different gears may be used for splitting the normal-temperature purified water flowing out of the water outlet end of the water supply device 100 according to different ratios, the different gears may correspond to the flow ratio, that is, the flow ratio may be adjusted by the adjusting valve 202, where the gears of the adjusting valve 202 may be set according to actual requirements, the gears of the adjusting valve 202 and the corresponding relationship with the flow ratio may be adjusted according to actual conditions, for example, the gears of the adjusting valve 202 are 1 gear, the corresponding flow ratio of the normal-temperature purified water entering the heating device 101 to the normal-temperature purified water entering the heat exchange device 103 may be 0.7:0.3, the gears of the adjusting valve 202 are 2 gears, the corresponding flow ratio may be 0.8:0.2, optionally, the corresponding flow ratio may be 1 gear of the adjusting valve 202, the corresponding flow ratio may be 7:3, the gears of the adjusting valve 202 may be 2 gears, and the corresponding flow ratio may be 0.6:0.4.
The controller 102 may adjust the flow ratio by adjusting a valve according to a temperature difference between the outlet water temperature of the water supply device 100 and a target outlet water temperature of the water supply system. Specifically, a second temperature sensing bulb may be disposed at the water outlet of the water supply device 100, where the second temperature sensing bulb may monitor the temperature of the water outlet of the water supply device 100 in real time to obtain a second temperature value (i.e. the outlet water temperature of the water supply device), and send the monitored second temperature value to the controller 102, where the controller 102 may calculate a temperature difference between the second temperature value and the outlet water temperature according to the obtained second temperature value and the target outlet water temperature set by the user, for example, the second temperature value monitored by the second temperature sensing bulb is 25 ℃, and the target outlet water temperature set by the user is 55 ℃, and then may calculate a temperature difference between the outlet water temperature of the water supply device 100 and the target outlet water temperature of the water supply system is 30 ℃. After the temperature difference is calculated, the gear of the regulating valve can be determined according to the temperature difference, so that the flow ratio is regulated, and the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature.
In one embodiment, the adjusting valve 202 may include a gear 1, a gear 2, a gear 3, and a gear 4, where the gear of the adjusting valve may correspond to a flow ratio, specifically, the gear 1 may indicate that normal-temperature purified water flowing out from the water outlet end of the water supply device flows into the heat exchange device, and at this time, a flow ratio of the water inlet of the heating device 101 and the water inlet of the heat exchange device 103 may be 0:1, gear 4 may indicate that the normal-temperature purified water flowing out from the water outlet end of the water supply device 100 flows into the heating device 101, and at this time, the flow ratio of the water inlet of the heating device 101 to the water inlet of the heat exchange device 103 may be 1:0, gear 2 may indicate that the normal temperature purified water flowing out from the water outlet end of the water supply device flows into the heating device 101 and partially flows into the heat exchange device 103, and at this time, the flow ratio of the inlet water of the heating device 101 to the inlet water of the heat exchange device 103 may be 0.2:0.8, gear 3 may represent that the normal temperature purified water flowing out from the water outlet end of the water supply device flows into the heating device 101 and partially flows into the heat exchange device 103, and at this time, the flow ratio of the inlet water of the heating device 101 to the inlet water of the heat exchange device 103 may be 0.6:0.4.
In one embodiment, the regulator valve 202 may include gear 1, gear 2, gear 3, and gear 4, and may be adjusted to achieve a multi-temperature-zone water supply function of the water supply system. Specifically, the water outlet temperature of the water supply device 100 may be set to be constant, and when the target water outlet temperature is changed, the corresponding temperature difference is also different. When the user demand temperature is 40 ℃ (40 ℃ may refer to the lowest temperature section water, wherein the lowest temperature section water may be set according to the actual situation), the gear 1 may be corresponding, and at this time, the flow ratio of the water inlet of the heating device 101 to the water inlet of the heat exchange device 103 may be 0:1, at this time, the normal-temperature purified water flowing out from the water outlet end of the water supply device 100 flows into the heat exchange device 103 entirely, and then flows out from the heat exchange device 103 to the heating device 101 for heating, and the hot water heated by the heating device 101 enters the heat exchange device 103 for heat exchange, and since the normal-temperature purified water flowing out from the water outlet end 105 of the water supply device 100 flows into the heat exchange device 103 entirely, the normal-temperature purified water for heat exchange of boiling water in the heat exchange device 103 increases correspondingly, and the user demand temperature can be obtained quickly at 40 ℃. When the user demand temperature is above 90 ℃, the gear corresponding to the regulating valve may be gear 4, and at this time, the flow ratio of the inlet water of the heating device 101 to the inlet water of the heat exchange device 103 may be 1:0, at this time, the normal-temperature purified water flowing out from the water outlet end of the water supply device 100 flows into the heating device 101, and after the normal-temperature purified water flowing out from the water outlet end of the water supply device 100 flows into the heating device 101, the water heated to boiling output by the heating device 101 can be output to a user without heat exchange, and the water can be used by the user, and the gear 2 and the gear 3 respectively correspond to the temperature difference between the water outlet temperature of the water supply device 100 and the target water outlet temperature of the water supply system, so that the water supply system can realize the function of multiple temperature sections through the regulating valve 202.
As can be seen from the above embodiments, the temperature difference between the outlet water temperature of the water supply device 100 and the target outlet water temperature of the water supply system is proportional to the flow ratio of the inlet water of the heating device to the inlet water of the heat exchange device.
Specifically, when the outlet water temperature of the water supply device 100 is fixed, the larger the difference between the outlet water temperature of the water supply device 100 and the target outlet water temperature of the water supply system is, the higher the target outlet water temperature is, the more normal-temperature purified water entering the heating device 101 will be than normal-temperature purified water entering the heat exchange device 103 to a certain extent, so that the flow ratio of the inlet water of the heating device and the inlet water of the heat exchange device is in direct proportion. Thus, when the required target outlet water temperature is higher, the required target outlet water temperature can be obtained more quickly by adjusting the flow rate of the purified water entering the heating device 101 and the heat exchange device 103.
In one embodiment, the temperature difference and the flow ratio are in a mapping relationship, and the controller determines the flow ratio corresponding to the temperature difference according to the mapping relationship. Wherein, there is a mapping relationship between the temperature difference and the flow ratio, that is, the temperature difference and the flow ratio are in one-to-one correspondence, for example, when the temperature difference is 30 ℃, the flow ratio may be 0.6:0.4, the flow ratio may be 0.8 when the temperature difference is 50 °:0.2, so, since the flow ratio corresponds to the gear of the regulating valve 202, after determining the temperature difference, the controller 102 can determine the flow ratio, and further adjust the gear of the regulating valve 202 to realize the diversion of the purified water flow entering the heating device 101 and the heat exchange device 103.
In one embodiment, referring to fig. 4, a block diagram of a water supply system in one embodiment is shown in fig. 4, and the water supply system further includes a water supply pump 302 disposed on a water outlet end of the water supply device, where the water supply pump 302 is electrically connected to the controller 102, and the controller 102 determines an initial water supply flow rate of the water supply pump according to a maximum power of the heating device 101, a temperature difference between a water outlet temperature of the water supply device 100 and a target water outlet temperature of the water supply system, and a thermal conversion efficiency of the heating device 103, as shown in fig. 3.
The maximum power of the heating device 101 may be the maximum work that the heating device 101 can do in a unit time, and in the process of determining the initial water supply flow of the water supply pump, the greater the power, the greater the corresponding initial water supply flow, the shorter the waiting time for the user to take water, and the better the user experience.
The heat conversion efficiency of the heating device 101 refers to the efficiency of converting electric energy into heat energy, and the heat conversion efficiency may be selected to have a corresponding value according to the actual heat generating structure constituting the heating device 101. The initial water supply flow rate of the water supply pump means an initial purified water flow rate discharged from the water supply pump.
After the maximum power of the heating device 101, the temperature difference between the outlet water temperature of the water supply device 100 and the target outlet water temperature of the water supply system, and the heat conversion efficiency of the heating device 103 are obtained, the controller 102 may determine the initial water supply flow rate of the water supply pump.
In one embodiment, the formula for determining the initial water supply flow rate of the water supply pump may be as follows: 4187× (t) 2 -t 1 )×v＝p×η；
Wherein 4187 represents the specific heat capacity of water, t 2 Indicating the target outlet water temperature t 1 Indicating the outlet water temperature of the water supply device, t 2 -t 1 The temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system is represented by p, the maximum power of the heating device is represented by eta, the heat conversion efficiency is represented by eta, and v is the calculated voltage of the water supply pump, and the calculated voltage has a corresponding relation with the initial water supply flow.
In one embodiment, the water supply system further includes a first temperature sensing bulb, the first temperature sensing bulb is disposed at the water outlet of the water supply system, and the controller 102 adjusts the initial water supply flow of the water supply pump according to the first temperature value detected by the first temperature sensing bulb, so that the cooled outlet water temperature output by the heat exchange device is matched with the target outlet water temperature.
The first temperature sensing bulb is arranged at the water outlet of the water supply system, so that the first water temperature (namely, the water temperature of the water outlet of the water supply system) can be monitored, and if the water temperature of the water outlet of the water supply system is not matched with the target water outlet temperature, if the water temperature is larger than the target water outlet temperature or smaller than the target water outlet temperature, the initial water supply flow of the water supply pump can be regulated, so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature. Therefore, the water outlet temperature reaches the user requirement through the adjustment of the initial water supply flow of the water supply pump.
If the water temperature of the water outlet of the water supply system is higher than the target water outlet temperature, the voltage of the water supply pump can be increased, so that the initial water supply flow is increased, the water flow flowing through the heating device is increased, and correspondingly, the temperature of the water flowing out of the heating device is reduced, so that the water temperature of the water outlet of the water supply system is reduced, and when the water outlet temperature is lower than the target water outlet temperature, the voltage of the water supply pump can be reduced, the initial water supply flow is reduced, and the water temperature of the water outlet of the water supply system is increased.
In one embodiment, the first temperature sensing bulb may be further disposed at a water outlet of the heating device, and the controller adjusts an initial water supply flow of the water supply pump according to the first water temperature (i.e., a water temperature of the water outlet of the heating device) so that the cooled water outlet temperature output by the heat exchange device matches with the target water outlet temperature.
If the water temperature of the water outlet of the heating device is higher than the water outlet temperature of the heating device, the voltage of the water supply pump can be increased, so that the initial water supply flow rate is increased, the water flow flowing through the heating device is increased, and correspondingly, the temperature of the water flowing out of the heating device is reduced, and when the water temperature of the water outlet of the heating device or the water temperature of the water outlet of the water supply system is lower than the target water outlet temperature, the voltage of the water supply pump can be reduced, so that the initial water supply flow rate of the water supply pump is reduced, and the temperature of the water flowing out of the heating device is increased.
In one embodiment, the temperature value detected by the first bulb is proportional to the initial water supply flow rate of the water supply pump. Therefore, when the detected water temperature of the water outlet of the heating device or the water temperature of the water outlet of the water supply system is larger than the target water outlet temperature, the initial water supply flow of the water supply pump needs to be increased, and when the detected water temperature of the water outlet of the heating device or the water temperature of the water outlet of the water supply system is smaller than the target water outlet temperature, the initial water supply flow of the water supply pump needs to be reduced, so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature. Therefore, the water outlet precision of the water supply system outlet can be ensured, and the user experience is improved.
In one embodiment, the water supply device comprises a raw water tank, a raw water pump, a purifying filter element, a waste water electromagnetic valve and a purifying water tank; the raw water outlet end of the raw water tank is connected with the raw water pump, the raw water pump is connected with the purification filter element, the purification filter element is connected with the water purification tank and the waste water electromagnetic valve, and the waste water electromagnetic valve is connected with the waste water inlet of the raw water tank; the controller is electrically connected with the raw water pump, the purifying filter element and the wastewater electromagnetic valve.
The specific structure of the purifying filter element is not unique, and the purifying filter element can have a single or combined form of a pretreatment module and a deep treatment module. The pretreatment realizes preliminary filtration of removing pollutants such as sediment, rust, residual chlorine and the like from water, and can be in a primary filter element, active carbon filter element combination or composite form. The purifying filter element can be a PP cotton filter element or an ultrafiltration filter element, and the active carbon filter element can be a granular active carbon, a carbon fiber or a carbon rod filter element. The advanced treatment module realizes the advanced filtration of removing toxic and harmful substances such as heavy metals, microorganisms and the like from water, and can be one or a combination of a plurality of ultrafiltration, nanofiltration or reverse osmosis filtration modules. Specifically, in one embodiment, the purifying filter element is a multiple composite filter element, has pretreatment purifying and deep purifying functions, and purified water meets the drinking standard.
In one embodiment, the water supply system further comprises a two-channel solenoid valve; the double-channel electromagnetic valve is electrically connected with the controller;
the water outlet of the heating device is connected with the hot fluid water inlet end of the heat exchange device through one end of the double-channel electromagnetic valve, and the water outlet of the heating device is connected with the water supply system outlet through the other end of the double-channel electromagnetic valve.
The two-channel electromagnetic valve can be respectively connected with the hot fluid water inlet end of the heat exchange device and the water outlet of the heating device, the two-channel electromagnetic valve can comprise two gears, namely a gear 1 and a gear 2, when the two-channel electromagnetic valve is positioned in the gear 1, the channel of the hot fluid water inlet end of the heat exchange device is opened, the channel connected with the outlet of the water supply system is closed, at the moment, the water flowing out of the water outlet of the heating device flows into the heat exchange device to exchange heat, when the two-channel electromagnetic valve is positioned in the gear 2, the channel of the hot fluid water inlet end of the heat exchange device is closed, the channel connected with the outlet of the water supply system is opened, and at the moment, the water flowing out of the water outlet of the heating device is directly connected with the outlet of the water supply system, so that different water taking demands of users can be adapted. Through setting up binary channels solenoid valve, can make water supply system more nimble in the structure, can adapt to user's water supply demand from a plurality of angles.
In one embodiment, as shown in fig. 5, a schematic structural diagram of the water supply system in one embodiment is shown:
the water supply system in this embodiment includes a water supply device 100, a micropump 507, a regulating valve 508, a heat exchanger 509, a two-channel electromagnetic valve 510, a heating tube 511, a first thermal bulb 512 disposed at a water outlet of the water supply system, and a second thermal bulb 506 disposed at a water outlet end of the water supply device 100, wherein the water supply device 100 includes a raw water tank 501, a raw water self-priming pump 502, a purifying filter element 503, a purified water tank 504, and a waste water electromagnetic valve 505, and the heat exchanger 509 includes a first inlet 516, a second inlet 513, a first outlet 514, and a second outlet 515.
Raw water is stored in the raw water tank 501, and can be automatically or artificially added into the raw water tank 501, a water outlet of the raw water tank 501 is connected with a water inlet of a raw water self-priming pump 502, and a water outlet of the raw water self-priming pump 502 is connected with a water inlet of a purifying filter element 503; wherein, purifying filter element can be multiple compound filter element, have preliminary treatment purification and deep purification function, make the water after purifying satisfy the standard of drinking, purifying filter element 503 has water purification export and waste water export, the water inlet of filter element water purification exit linkage water purification case 504, water purification case 504 has certain volume and can deposit the purified water of making, satisfy the user and not influenced by filter element water making state and can stabilize the demand of intaking, the water inlet of filter element waste water exit linkage waste water control valve 505, waste water control valve 505 has the operation and washes two kinds of states, waste water control valve 505 delivery port connection waste water tank water inlet.
The water outlet of the clean water tank 504 is connected with the water inlet of the micropump 507, the water outlet of the micropump is respectively connected with the first inlet 516 of the heat exchanger 509 and the inlet of the regulating valve 508, the outlet of the heating tube 511 is connected with the second inlet 513 of the heat exchanger 509 through the two-channel electromagnetic valve 510 on one hand, and is connected with the water supply outlet 516 through the two-channel electromagnetic valve 510 on the other hand, wherein boiling water in the heating tube 511 can flow into the heat exchanger 509 from the second inlet 513 of the heat exchanger 509 for heat exchange after flowing into the heat exchanger 509, the boiling water after heat exchange flows out from the second outlet 515 of the heat exchanger 509 to the water supply outlet 516, and the boiling water in the heating tube 511 can also flow out directly to the water supply outlet 516 through the effect of the two-channel electromagnetic valve 510.
When the boiling water in the heating pipe 511 flows into the heat exchanger 509 from the second inlet 513 of the heat exchanger 509 by the action of the two-way electromagnetic valve, the normal-temperature purified water flowing in from the first inlet 516 of the heat exchanger 509 absorbs heat during the heat exchange, and flows out from the first outlet 514 of the heat exchanger 509 after absorbing energy, and flows into the inlet of the heating pipe 511 after being mixed with the normal-temperature purified water flowing out from the outlet of the regulating valve 508 after flowing out.
The control flow of the water purification system shown in fig. 5 is as follows:
when the user takes 55 ℃ (t) 2 ) When the water supply device is in cool-white state, the tail end is in cool-white state signal transmission, if the liquid level detected by the liquid level sensor of the raw water tank 501 is higher than the low liquid level, the water stored in the raw water tank 501 is enough to supply water to a user, and a second temperature value (outlet temperature of the water supply device) detected by the second temperature sensing bag 506 at the water outlet end of the water supply device 100 is obtained, wherein the outlet temperature of the water supply device is 25 ℃ (t) 1 ) According to the temperature difference of 30 ℃ (delta t) 1 ＝55℃-t 1 ) The output flow rate of the micropump was calculated to be 0.81L/min (Q 1 ) The heating tube is heated according to 30 ℃ (delta t) 1 ) The power is synchronously regulated, the water temperature of the water outlet of the water supply system is ensured to be 55 ℃, the water temperature of the water outlet of the heating tube is ensured to be 100 ℃, the gear of the double-channel electromagnetic valve is regulated, so that the water flowing out of the heating tube flows into the heat exchanger, namely the water inlet temperature (the water outlet temperature of boiled water, namely the heating temperature) of the heat exchanger is 100 ℃, and specifically, the boiled water at 100 ℃ enters the heat exchanger at the flow rate of 0.81L/min (Q1).
At the same time, the regulating valve 508 is used for regulating the water taking temperature t according to the user 2 The gear is switched to a fixed separation ratio with a split ratio of 0.8, namely normal temperature purified water with a flow of 0.65L/min (Q) 2 ) Into the first inlet of the heat exchange heat exchanger, heating and mixing with 0.16L/min (Q) 1 -Q 2 ) Mixing with purified water at 70deg.C at 0.81L/min (Q) 1 ) Hot water is heated to 100deg.C by heating tube 511, and enters heat exchanger 509 to heat with water of 0.65L/min (Q 2 )25℃(t 1 ) After the convection heat exchange of the purified water, the purified water is output to have a constant temperature of 55 ℃ of 0.81L/min (Q 1 ) Cool and white.
In the water taking process, the measured temperature of a first temperature sensing bulb at the outlet of the water supply system is obtained in real time, and if the measured first temperature value (the water outlet temperature of the water supply system) of the first temperature sensing bulb is inconsistent with the target water taking temperature, the Q is continuously corrected and regulated 1 Ensuring that the measured temperature of the water outlet nozzle is finally the target water taking temperature t 2 Specifically, if the water temperature of the water outlet of the water supply system is greater than the target water temperature, the voltage of the micro pump can be increased, so that the output flow of the micro pump is increased, and the water flow flowing through the heating device is increasedAnd correspondingly, the temperature of water flowing out of the heating device is reduced, so that the water temperature of the water outlet of the water supply system is further reduced, when the water outlet temperature is smaller than the target water outlet temperature, the voltage of the micro pump can be reduced, the output flow of the micro pump is reduced, and the water temperature of the water outlet of the water supply system is further increased.
When the water taking temperature of a user is higher than 90 ℃, the diversion proportion of the regulating valve can be regulated, so that normal-temperature purified water flowing out of the micropump does not flow through the heat exchanger and totally flows into the heating pipe, and water of the heating pipe directly flows out to the outlet of the water supply system by regulating the double-channel electromagnetic valve.
On the basis of the embodiment shown in fig. 5, as shown in fig. 6, a schematic structural diagram of a water supply system in another embodiment is shown:
the embodiment includes a first bulb 512, where the first bulb 512 is disposed at an outlet of the heating tube.
When the user takes 55 ℃ (t) 2 ) When the water supply device is in cool white state, the tail end is in cool white state, the signal transmission is carried out, the liquid level sensor of the raw water tank 501 detects that the liquid level is higher than the low liquid level, the water stored in the raw water tank is enough to supply water to a user, and the second temperature value (the outlet temperature of the water supply device) detected by the second temperature sensing bag at the water outlet end of the water supply device is 25 ℃ (t) 1 ) According to the temperature difference of 30 ℃ (delta t) 1 ＝55℃-t 1 ) Calculating the corresponding flow output by the clean water pump to be 0.81L/min (Q 1 ) The heating element is controlled by 30 deg.C (delta t) 1 ) The power is synchronously regulated to ensure that the water temperature of the water discharged from the whole machine is 55 ℃, the water temperature of the water discharged from the heating tube is 100 ℃, the gear of the two-channel electromagnetic valve is regulated to ensure that the water discharged from the heating tube flows into the heat exchanger, namely the water temperature of the water discharged from the heat exchanger (the water temperature of the water discharged from the heating tube, namely the heating temperature) is 100 ℃, and the water at 100 ℃ is 0.81L/min (Q 1 ) The flow enters the heat exchanger.
Meanwhile, the regulating valve is used for regulating the speed t according to the water taking temperature 2 Switching to a fixed separation ratio with a split ratio of 0.8, i.e. normal temperature purified water with a flow of 0.65L/min (Q 2 ) Enters the first inlet of the heat exchange heat exchanger, and is heated to be 0.16L/min(Q 1 -Q 2 ) Mixing with purified water at 70deg.C at 0.81L/min (Q) 1 ) Hot water is heated to 100deg.C by a heater, and enters a heat exchanger to exchange with 0.65L/min (Q 2 )25℃(t 1 ) After the convection heat exchange of the purified water, the purified water outputs a constant temperature of 55 ℃ of 0.81L/min (Q) 1 )(t 1 ) Cool and white.
In the water taking process, a first temperature value of a first temperature sensing bulb at the outlet of the heating tube is obtained in real time, and if the first temperature value (namely the outlet temperature of the heating tube) is not equal to 100 ℃, Q is continuously corrected and regulated 1 The measured temperature of the heating element is ensured to be 100 ℃.
Specifically, if the outlet temperature of the heating tube is greater than 100 ℃, the voltage of the water supply pump can be increased, so that the output flow of the micro pump is increased, the water flow flowing through the heating tube is increased, and correspondingly, the temperature of the water flowing out of the heating tube is reduced, so that the water temperature of the water outlet of the water supply system is further reduced, and when the outlet temperature of the heating tube is less than 100 ℃, the voltage of the water supply pump can be reduced, the output flow of the micro pump is reduced, and the water temperature of the water outlet of the water supply system is further increased.
On the basis of the above embodiment, as shown in fig. 7, a schematic structural diagram of a water supply system in another embodiment is shown: the water supply system in this embodiment is not provided with a two-channel solenoid valve.
When the user takes 55 ℃ (t) 2 ) When the water heater is in cool white state, the tail end is in cool white state for signal transmission, the liquid level sensor of the raw water tank 501 detects that the liquid level is higher than the low liquid level, and the water stored in the raw water tank is enough for supplying water to a user, and the purified water temperature detected by the second temperature sensing bulb is obtained, wherein the purified water temperature is 25 ℃ (t) 1 ) According to the temperature difference of 30 ℃ (delta t) 1 ＝55℃-t 1 ) Calculating and regulating the output corresponding flow of the water purifying pump by an algorithm to be 0.81L/min (Q 1 ) The heating element is controlled by 30 deg.C (delta t) 1 ) The power is synchronously regulated to ensure that the water temperature of the water discharged from the whole machine is 55 ℃ and the water temperature of the water discharged from the heating tube is 100 ℃, and the water supply system of the embodiment does not comprise a double-channel electromagnetic valve, so that the water discharged from the heating body directly flows into the heat exchanger, namely the water inlet temperature (boiled water outlet temperature, namely the heating temperature) of the heat exchanger is 100 ℃, specifically, 100 ℃ boiled water at 0.81L/min (Q 1 ) The flow enters the heat exchanger.
Meanwhile, the regulating valve is used for regulating the speed t according to the water taking temperature 2 Switching to a fixed separation ratio with a split ratio of 0.8, i.e. normal temperature purified water with a flow of 0.65L/min (Q 2 ) Into the first inlet of the heat exchange heat exchanger, heating and mixing with 0.16L/min (Q) 1 -Q 2 ) Mixing with purified water at 70deg.C at 0.81L/min (Q) 1 ) Hot water is heated to 100 ℃ by a heating pipe, enters a heat exchanger, and enters a heat exchanger after being heated to 0.65L/min (Q 2 )25℃(t 1 ) After the convection heat exchange of the purified water, the purified water outputs a constant temperature of 55 ℃ of 0.81L/min (Q) 1 ) Cool and white.
In one embodiment, as shown in fig. 8, the present application further provides a water supply control method of the water supply system, wherein the descriptions of the water supply device, the heat exchange device and the controller related to the water supply control method of the water supply system are detailed in the descriptions of the water supply device, the heat exchange device and the controller. Taking the controller 102 in fig. 1 as an example, the method is applied to the following steps:
step 802, obtaining a target outlet water temperature corresponding to the outlet water instruction.
The water outlet instruction can be that when a user has a water taking requirement, a target water outlet temperature is set through the interaction device, the interaction device sends the water outlet instruction to the controller, wherein the water outlet instruction can carry the target water outlet temperature, and the interaction device can be a key circuit or a touch screen and the like. The user can also send the target outlet water temperature to the controller for storage in the form of instructions through terminal equipment such as a mobile phone, a remote controller and the like.
Step 804, responding to the water outlet instruction, providing water for the heating device based on the water supply device, and providing cooling water for the heat exchange device.
The controller responds to the water outlet instruction and controls the water supply device to supply water for the heating device and supply cooling water for the heat exchange device. The water output by the water supply device can partially enter the heating device, and the other part of the water can enter the heat exchange device, so that the heating device can heat the water output by the water supply device, and the cooling water in the heat exchange device can cool the heated water.
Step 806, controlling the heating device to heat the water supply to the target heating temperature, performing heat exchange on the heated water supply through the heat exchange device, and cooling to the target water outlet temperature.
The heat exchange refers to a process of exchanging heat by two kinds of water with different temperatures, wherein water with relatively low temperature can release heat, and water with relatively low temperature can absorb heat. The controller can control the heating device to heat the water supply to the target heating temperature, and the hot water heated to the target heating temperature enters the heat exchange device to exchange heat and is cooled to the target water outlet temperature.
In the water supply control method of the water supply system, after the water supply is heated by the heating device, the heated water is sent to the hot fluid water inlet end of the heat exchange device, the temperature of the cooling water of the heat exchange device rises in the heat exchange process, and the water is sent to the heating device for heating, namely, the water to be heated entering the heating device comprises normal-temperature water supply and the cooling water participating in heat exchange, and the water to be heated and the cooling water are mixed, so that the temperature of the water to be heated of the heating device is increased, the heating device can be heated to the target heating temperature with lower power, the efficiency is improved, and the heating power consumption is reduced.
In one embodiment, the method further comprises: acquiring the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system; and controlling the flow ratio of the regulating valve according to the temperature difference so as to enable the cooled outlet water temperature output by the heat exchange device to be matched with the target outlet water temperature. The temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system is in direct proportion to the flow ratio of the inlet water of the heating device to the inlet water of the cooling water.
The temperature difference between the water outlet temperature and the target water outlet temperature of the water supply system can be determined by acquiring the water outlet temperature arranged at the water supply device, and after the temperature difference is determined, the flow ratio of the regulating valve is controlled according to the temperature difference, so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature. Specifically, there is a mapping relationship between the temperature difference and the flow ratio, that is, the temperature difference and the flow ratio are in one-to-one correspondence, for example, when the temperature difference is 30 °, the flow ratio may be 0.6:0.4, and when the temperature difference is 50 °, the flow ratio may be 0.8:0.2, so, since the flow ratio corresponds to the gear of the regulating valve 202, after determining the temperature difference, the controller may determine the flow ratio, and further adjust the gear of the regulating valve 202, so as to realize the diversion of the purified water flow entering the heating device 101 and the heat exchange device 103.
In one embodiment, the method further comprises: obtaining the maximum power of the heating device, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system and the heat conversion efficiency of the heat exchange device; and determining an initial water supply flow rate of the water supply pump based on the maximum power, the temperature difference and the heat conversion efficiency.
Wherein, the following formula is shown:
4187*(t 2 -t 1 )*V＝p*η
wherein 4187 is the specific heat capacity of water, t 2 Indicating the outlet water temperature of the water supply device, t 1 The target outlet water temperature of the water supply system is represented, p represents the maximum power, eta represents the heat conversion efficiency, and V can represent the voltage of the micro pump, and the voltage has a corresponding relation with the initial water supply flow, so that after the V is determined, the initial water supply flow can be determined.
In one embodiment, the method further comprises: acquiring a first temperature value detected by a first temperature sensing bulb; and according to the first temperature value, adjusting the initial water supply flow of the water supply pump to enable the cooled water outlet temperature output by the heat exchange device to be matched with the target water outlet temperature. The first temperature value detected by the first temperature sensing bulb is in direct proportion to the initial water supply flow of the water supply pump.
When the detected water temperature of the water outlet of the heating device or the water temperature of the water outlet of the water supply system is larger than the target water outlet temperature, the initial water supply flow of the water supply pump needs to be increased in proportion, and when the detected water temperature of the water outlet of the heating device or the water temperature of the water outlet of the water supply system is smaller than the target water outlet temperature, the initial water supply flow of the water supply pump needs to be reduced, so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature. Therefore, the water outlet precision of the water supply system outlet can be ensured, and the user experience is improved.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
In one embodiment, an electronic device is provided, which may be a terminal, and an internal structure diagram thereof may be as shown in fig. 9. The electronic device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the electronic device is used for conducting wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by the processor, implements a water supply control method for a water supply system. The display screen of the electronic equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the electronic equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 9 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the electronic device to which the present application is applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided that includes a memory having a computer program stored therein and a processor that when executing the computer program performs the steps of the water supply control method of the water supply system described above.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, implements the steps of the water supply control method of the water supply system described above.
In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of the water supply control method of a water supply system described above.
It should be noted that, user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (18)

1. A water supply system, comprising:
a water supply device;
the water inlet end of the heating device is connected with the water outlet end of the water supply device;
the controller is electrically connected with the heating device and used for controlling the heating device to heat the water supply to a target heating temperature;
the hot fluid water inlet end of the heat exchange device is connected with the water outlet of the heating device, and the hot fluid water outlet end of the heat exchange device is connected to the water supply system outlet; the cooling water inlet end of the heat exchange device is connected with the water outlet end of the water supply device, and the cooling water outlet end is connected with the water inlet end of the heating device; the heated water supply is cooled to the target water outlet temperature through the heat exchange device, and the cooled water after heat exchange and normal-temperature water supply output by the water outlet end of the water supply device are fused at the water inlet end of the heating device and input into the heating device for reheating;
The regulating valve is respectively connected with the water inlet end of the heating device and the cooling water inlet end of the heat exchange device, and is used for regulating the flow ratio of the water inlet flowing into the heating device to the cooling water inlet flowing into the heat exchange device after the water outlet of the water outlet end of the water supply device is split;
the controller is electrically connected with the regulating valve and the water supply device, and the controller regulates the flow ratio according to the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system so as to enable the cooled water outlet temperature output by the heat exchange device to be matched with the target water outlet temperature.
2. The water supply system of claim 1, wherein a temperature difference between a water outlet temperature of the water supply device and a target water outlet temperature of the water supply system is proportional to a flow ratio of water inlet of the heating device and water inlet of the heat exchange device.
3. The water supply system according to claim 1 or 2, wherein the temperature difference and the flow ratio are in a mapping relationship, and the controller determines the flow ratio corresponding to the temperature difference according to the mapping relationship.
4. The water supply system of claim 1, further comprising a water supply pump disposed on a water outlet end of the water supply device, the regulator valve being connected between the water supply pump, the heat exchange device, and the heating device;
the controller is electrically connected with the water supply pump, and is used for determining the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system, determining the output flow of the water supply pump according to the temperature difference, controlling the heating power of the heating device to enable the water outlet temperature of the heating device to be the boiling water temperature, enabling the water outlet temperature of the water supply system to be the target water outlet temperature, and simultaneously controlling the gear of the regulating valve to be switched to the gear of the flow ratio corresponding to the temperature difference, so that the water outlet temperature of the output flow heated by the heating device after the water outlet temperature is reduced by the heat exchange device is matched with the target water outlet temperature.
5. The water supply system according to any one of claims 1 to 2, further comprising a water supply pump disposed on a water outlet end of the water supply device, the water supply pump being electrically connected to the controller, the controller determining an initial water supply flow rate of the water supply pump based on a maximum power of the heating device, a temperature difference between a water outlet temperature of the water supply device and a target water outlet temperature of the water supply system, and a thermal conversion efficiency of the heating device.
6. The water supply system of claim 5, further comprising a first bulb disposed at a water outlet of the water supply system or a water outlet of the heating device; the first temperature sensing bulb is electrically connected with the controller, and the controller adjusts the initial water supply flow of the water supply pump according to a first temperature value detected by the first temperature sensing bulb so that the cooled water outlet temperature output by the heat exchange device is matched with the target water outlet temperature.
7. The water supply system of claim 6, wherein the first temperature value sensed by the first bulb is proportional to an initial water supply flow rate of the water supply pump.
8. The water supply system of claim 5, further comprising a second bulb disposed at the water outlet end of the water supply device, the second bulb being electrically connected to the controller, the controller determining a temperature difference between the water outlet temperature of the water supply device and a target outlet temperature of the water supply system based on a second temperature value detected by the second bulb.
9. The water supply system of claim 1, wherein the water supply device comprises a raw water tank, a raw water pump, a purification filter element, a wastewater solenoid valve, and a purified water tank;
The raw water outlet end of the raw water tank is connected with the raw water pump, the raw water pump is connected with the purification filter element, the purification filter element is connected with the water purification tank and the waste water electromagnetic valve, and the waste water electromagnetic valve is connected with the waste water inlet of the raw water tank;
the controller is electrically connected with the raw water pump, the purifying filter element and the wastewater electromagnetic valve.
10. The water supply of claim 1, further comprising a two-channel solenoid valve; the double-channel electromagnetic valve is electrically connected with the controller;
the water outlet of the heating device is connected with the hot fluid water inlet end of the heat exchange device through one end of the double-channel electromagnetic valve, and the water outlet of the heating device is connected with the water supply system outlet through the other end of the double-channel electromagnetic valve.
11. A water supply control method applied to the water supply system according to any one of claims 5 to 8, comprising:
obtaining a target water outlet temperature corresponding to the water outlet instruction;
responding to the water outlet instruction, providing water for the heating device based on the water supply device, and providing cooling water for the heat exchange device;
controlling the heating device to heat the water supply to a target heating temperature, performing heat exchange on the heated water supply through the heat exchange device, cooling to a target water outlet temperature, and mixing the cooled water subjected to heat exchange with the water supply before the heating device to obtain water to be heated entering the heating device;
Acquiring the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system;
and controlling the flow ratio of the regulating valve according to the temperature difference so as to enable the cooled outlet water temperature output by the heat exchange device to be matched with the target outlet water temperature.
12. The water supply control method of a water supply system according to claim 11, wherein a difference between a water outlet temperature of the water supply device and a target water outlet temperature of the water supply system is proportional to a flow ratio of water inlet of the heating device and water inlet of the heat exchanging device.
13. The water supply control method of a water supply system according to claim 11, wherein the temperature difference and the flow rate ratio are in a mapping relationship;
according to the temperature difference, controlling the flow ratio of the regulating valve, comprising:
and determining the flow ratio of the regulating valve based on the mapping relation between the temperature difference and the flow ratio.
14. A water supply control method of a water supply system according to claim 11 or 12, characterized in that the method further comprises:
obtaining the maximum power of the heating device, the temperature difference between the water outlet temperature of the water supply device and the target water outlet temperature of the water supply system and the heat conversion efficiency of the heating device;
And determining an initial water supply flow rate of the water supply pump based on the maximum power, the outlet water temperature, the temperature difference and the heat conversion efficiency.
15. The water supply control method of a water supply system according to claim 14, wherein the method further comprises:
acquiring a first temperature value detected by a first temperature sensing bulb;
and according to the first temperature value, adjusting the initial water supply flow of the water supply pump to enable the cooled water outlet temperature output by the heat exchange device to be matched with the target water outlet temperature.
16. The water supply control method of claim 15, wherein the first temperature value detected by the first bulb is proportional to an initial water supply flow rate of the water supply pump.
17. A water dispenser comprising the water supply system of any one of claims 1-10.
18. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 11-16 when the computer program is executed.
CN202210461783.8A 2022-04-28 2022-04-28 Water supply system, water supply control method of water supply system and water dispenser Active CN114680622B (en)

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