Control method, device and equipment of water heater system and storage medium

Abstract

The application discloses a kind of control method, device, equipment and storage medium of water heater system, water heater system includes water heater, water storage tank, first water pump, heat exchanger, the method includes: obtaining waste water inlet temperature value and the water storage temperature value of water storage tank;If it is judged that waste water inlet temperature value is greater than water storage temperature value or preset waste water temperature value, then control first water pump opens, to heat the water storage in water storage tank by heat exchanger, heated water storage is transmitted to water heater.The application increases a heat exchanger at sewage outlet before waste water is discharged into sewer, when it is judged that waste water inlet temperature value is greater than water storage temperature value in water storage tank or preset waste water temperature value, control first water pump opens, heat the water storage of water storage tank by heat exchanger, heated water storage is transmitted to water heater.To make water heater heat warm water, realized that waste water heat is used again, improve energy utilization, achieve the purpose of energy saving and emission reduction.

Description

Technical Field

[0001] This invention relates to the field of water heater system control technology, and in particular to a control method, device, equipment and storage medium for a water heater system. Background Technology

[0002] When people use hot water to shower or wash their face, the water still contains a lot of heat. Directly discharging this heated water into the sewer will result in energy loss.

[0003] In addition, hot water that is too hot can damage the drain pipes when discharged into the sewer, leading to safety hazards such as water pipe leaks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the direct discharge of used wastewater containing heat into the sewer will cause heat loss in the wastewater, and to provide a control method, device, equipment and storage medium for a water heater system.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] The first aspect of the present invention provides a control method for a water heater system, the water heater system including a water heater, a storage tank, and a first water pump, the water heater system further including a heat exchanger, the control method comprising:

[0007] Obtain the wastewater inlet temperature value at the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank;

[0008] If the wastewater inlet temperature is greater than the storage water temperature or the preset wastewater temperature, the first water pump is controlled to start so as to heat the water in the storage tank through the heat exchanger and then transfer the heated water to the water heater through the storage tank.

[0009] Preferably, the water heater system further includes a second water pump and a wastewater tank, the wastewater tank including a solenoid valve, and the control method further includes:

[0010] Obtain the wastewater outlet temperature value;

[0011] If the wastewater outlet temperature is greater than the storage water temperature or the preset wastewater temperature, then the second water pump is turned on and the solenoid valve is turned off to control the wastewater in the wastewater tank to circulate in the heat exchanger.

[0012] Preferably, the control method further includes:

[0013] If it is determined that the wastewater inlet temperature is not greater than the storage water temperature or the preset wastewater temperature, then the first water pump is controlled to shut down.

[0014] Preferably, the control method further includes:

[0015] If it is determined that the wastewater outlet temperature is not greater than the storage water temperature or the preset wastewater temperature, then the second water pump is shut down and the solenoid valve is opened.

[0016] A second aspect of the present invention provides a control device for a water heater system, the water heater system including a water heater, a water storage tank and a first water pump, the water heater system further including a heat exchanger, and the control device including a first acquisition module, a first judgment module and a first control module;

[0017] The first acquisition module is used to acquire the wastewater inlet temperature value of the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank.

[0018] The first judgment module is used to determine whether the wastewater inlet temperature is greater than the water storage temperature or the preset wastewater temperature. If so, the first control module is invoked.

[0019] The first control module is used to control the first water pump to start, so as to heat the water stored in the water storage tank through the heat exchanger, and then transfer the heated water to the water heater through the water storage tank.

[0020] Preferably, the water heater system further includes a second water pump and a wastewater tank, the wastewater tank including an electromagnetic valve, and the control device further includes a second acquisition module, a second judgment module and a second control module;

[0021] The second acquisition module is used to acquire the wastewater outlet temperature value of the sewage outlet;

[0022] The second judgment module is used to determine whether the wastewater effluent temperature value is greater than the water storage temperature value or the preset wastewater temperature value. If so, the second control module is invoked.

[0023] The second control module is used to control the second water pump to start and the solenoid valve to close, so as to control the wastewater in the wastewater tank to circulate in the heat exchanger.

[0024] Preferably, the control device further includes:

[0025] The first control module is further configured to control the first water pump to shut down if it is determined that the wastewater inlet temperature is not greater than the storage water temperature or the preset wastewater temperature.

[0026] Preferably, the control device further includes:

[0027] The second control module is further configured to control the second water pump to shut down and the solenoid valve to open if it is determined that the wastewater outlet temperature is not greater than the storage water temperature or the preset wastewater temperature.

[0028] A third aspect of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and for running on the processor, wherein the processor executes the computer program to implement the control method of the water heater system as described in the first aspect.

[0029] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for a water heater system as described in the first aspect.

[0030] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0031] The positive and progressive effects of this invention are as follows:

[0032] This invention adds a heat exchanger at the sewage outlet before the wastewater enters the sewer system. When the influent wastewater temperature is determined to be higher than the water temperature in the storage tank or a preset wastewater temperature, the first water pump is activated. This heat exchanger heats the water in the storage tank, and the heated water is then transferred to a water heater. The water heater then heats the water, thus reusing the heat from the wastewater, improving energy efficiency, and achieving energy conservation and emission reduction. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the water heater system in Embodiments 1 and 2 of the present invention.

[0034] Figure 2 This is a first flowchart of the control method for the water heater system according to Embodiment 1 of the present invention.

[0035] Figure 3 This is a second flowchart of the control method for the water heater system according to Embodiment 1 of the present invention.

[0036] Figure 4 This is a schematic diagram of the control device of the water heater system in Embodiment 2 of the present invention.

[0037] Figure 5 This is a schematic diagram of the electronic device used to implement the control method for a water heater system according to Embodiment 3 of the present invention. Detailed Implementation

[0038] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0039] Example 1

[0040] This embodiment provides a control method for a water heater system, such as... Figure 1 As shown, the water heater system includes a water heater 1, a water storage tank 2, a first water pump 3, and a heat exchanger 4, as follows: Figure 2 As shown, the control method includes:

[0041] Step 101: Obtain the wastewater inlet temperature value of the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank;

[0042] In this embodiment, as Figure 1 As shown, a first temperature sensor 11 is installed at the wastewater inlet of the drain outlet connected to the heat exchanger to detect the wastewater inlet temperature; a second temperature sensor 12 is installed at the water storage tank to detect the water storage temperature in the water storage tank.

[0043] It should be noted that the wastewater discharged into the drain outlet can be wastewater containing heat after the user takes a shower through the water heater, or it can be external wastewater containing heat, such as wastewater containing heat after washing dishes.

[0044] Step 102: Determine whether the wastewater inlet temperature is greater than the storage temperature or the preset wastewater temperature. If yes, proceed to step 103; otherwise, proceed to step 104.

[0045] In this embodiment, the preset wastewater temperature value is set according to the actual situation. For example, when the drain pipe material of the sewage outlet is PVC pipe, and the temperature resistance of PVC pipe is usually around 60 degrees, the preset wastewater temperature value can be set to 60 degrees, or it can be set to other values ​​within the temperature resistance range of PVC pipe. No specific limitation is made here.

[0046] Step 103: Control the first water pump to start, so as to heat the water in the storage tank through the heat exchanger, and then transfer the heated water to the water heater through the storage tank.

[0047] Step 104: Control the first water pump to shut down.

[0048] In the specific implementation process, a heat exchanger is added at the wastewater inlet of the sewage outlet before the wastewater is discharged into the sewer. The heat exchanger contains multiple thin plates with gaps between them. The wastewater, containing heat, flows into the gaps between the plates of the heat exchanger before being discharged into the sewer, allowing the heat to be collected from the wastewater. A first temperature sensor detects the wastewater inlet temperature at the sewage outlet; a second temperature sensor detects the water temperature in the storage tank. The system determines whether the wastewater inlet temperature is greater than the storage tank temperature or greater than... When the preset wastewater temperature value (e.g., 60 degrees Celsius) is reached, the first water pump is activated, allowing cold water from the storage tank to flow into the gaps between the fins of the heat exchanger. The heat from the wastewater, collected by the heat exchanger, heats the cold water flowing from the storage tank. This heated water is then transferred to the water heater, which heats the water. Since the wastewater originates from the water heater and some heat is consumed during bathing, the water temperature in the storage tank will not be higher than the water heater's set temperature, but it is higher than the initial inlet water temperature. Therefore, during subsequent heating, the water heater's power consumption decreases due to the reduced temperature difference between the set temperature and the inlet water, thus achieving energy saving and emission reduction.

[0049] As an optional implementation method, such as Figure 1 As shown, the water heater system also includes a second water pump 5 and a wastewater tank 6. The wastewater tank 6 includes a solenoid valve 61, such as... Figure 3 As shown, the control method also includes:

[0050] Step 201: Obtain the wastewater outlet temperature value;

[0051] In this embodiment, as Figure 1 As shown, a third temperature sensor 13 is installed at the wastewater outlet to detect the temperature of the wastewater at the outlet.

[0052] It should be noted that the wastewater outlet of the heat exchanger is connected to the wastewater tank;

[0053] In addition, the solenoid valves of wastewater tanks are usually normally open solenoid valves.

[0054] Step 202: Determine whether the wastewater effluent temperature is greater than the storage water temperature or the preset wastewater temperature. If yes, proceed to step 203; otherwise, proceed to step 204.

[0055] Step 203: Control the second water pump to start and close the solenoid valve to control the wastewater in the wastewater tank to circulate in the heat exchanger.

[0056] Step 204: Control the second water pump to shut down and open the solenoid valve.

[0057] In the specific implementation process, before the wastewater flows out of the outlet through the heat exchanger, the temperature of the wastewater after heat collection by the heat exchanger is detected by a third temperature sensor. If the temperature of the wastewater after heat collection by the heat exchanger is greater than the temperature of the water in the storage tank or greater than the preset wastewater temperature (e.g., the preset wastewater temperature is 60 degrees Celsius), it indicates that the temperature of the wastewater after heat collection by the heat exchanger is still relatively high. To prevent the wastewater from being discharged into the sewer and scalding it, the second water pump is turned on and the solenoid valve is closed. This allows the wastewater, still carrying heat after heat collection by the heat exchanger, to flow back into the heat exchanger and circulate again, collecting heat from the wastewater to reuse the heat. This process continues until the detected wastewater outlet temperature is no greater than the storage temperature or the preset wastewater temperature. At this point, the second water pump is turned off and the solenoid valve is opened, allowing the cooled wastewater after heat collection to be discharged into the sewer from the wastewater outlet, thus protecting the sewer.

[0058] This embodiment adds a heat exchanger at the sewage outlet before the wastewater enters the sewer. When the inlet temperature of the wastewater is determined to be higher than the temperature of the water in the storage tank or a preset wastewater temperature, the first water pump is activated to heat the water in the storage tank via the heat exchanger. The heated water is then transferred to the water heater, allowing the water heater to heat warm water. This reuse of heat from the wastewater improves energy efficiency and achieves the goals of energy conservation and emission reduction.

[0059] Example 2

[0060] This embodiment provides a control device for a water heater system, such as... Figure 1 As shown, the water heater system includes a water heater 1, a water storage tank 2, a first water pump 3, and a heat exchanger 4, as follows: Figure 4 As shown, the control device includes a first acquisition module 21, a first judgment module 22, and a first control module 23;

[0061] The first acquisition module 21 is used to acquire the wastewater inlet temperature value of the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank.

[0062] In this embodiment, as Figure 1 As shown, a first temperature sensor 11 is installed at the wastewater inlet of the drain outlet connected to the heat exchanger to detect the wastewater inlet temperature; a second temperature sensor 12 is installed at the water storage tank to detect the water storage temperature in the water storage tank.

[0063] It should be noted that the wastewater discharged into the drain outlet can be wastewater containing heat after the user takes a shower through the water heater, or it can be external wastewater containing heat, such as wastewater containing heat after washing dishes.

[0064] The first judgment module 22 is used to determine whether the wastewater inlet temperature is greater than the storage temperature or the preset wastewater temperature. If so, the first control module 23 is called.

[0065] In this embodiment, the preset wastewater temperature value is set according to the actual situation. For example, when the drain pipe material of the sewage outlet is PVC pipe, and the temperature resistance of PVC pipe is usually around 60 degrees, the preset wastewater temperature value can be set to 60 degrees, or it can be set to other values ​​within the temperature resistance range of PVC pipe. No specific limitation is made here.

[0066] The first control module 23 is used to control the first water pump to start, so as to heat the water in the storage tank through the heat exchanger and transfer the heated water to the water heater through the storage tank.

[0067] As an optional implementation, the first control module 23 is also used to control the first water pump to shut down if it is determined that the wastewater inlet temperature is not greater than the storage water temperature or the preset wastewater temperature.

[0068] In the specific implementation process, a heat exchanger is added at the wastewater inlet of the sewage outlet before the wastewater is discharged into the sewer. The heat exchanger contains multiple thin plates with gaps between them. The wastewater, containing heat, flows into the gaps between the plates of the heat exchanger before being discharged into the sewer, allowing the heat to be collected from the wastewater. A first temperature sensor detects the wastewater inlet temperature at the sewage outlet; a second temperature sensor detects the water temperature in the storage tank. The system determines whether the wastewater inlet temperature is greater than the storage tank temperature or greater than... When the preset wastewater temperature value (e.g., 60 degrees Celsius) is reached, the first water pump is activated, allowing cold water from the storage tank to flow into the gaps between the fins of the heat exchanger. The heat from the wastewater, collected by the heat exchanger, heats the cold water flowing from the storage tank. This heated water is then transferred to the water heater, which heats the water. Since the wastewater originates from the water heater and some heat is consumed during bathing, the water temperature in the storage tank will not be higher than the water heater's set temperature, but it is higher than the initial inlet water temperature. Therefore, during subsequent heating, the water heater's power consumption decreases due to the reduced temperature difference between the set temperature and the inlet water, thus achieving energy saving and emission reduction.

[0069] As an optional implementation method, such as Figure 1 As shown, the water heater system also includes a second water pump 5 and a wastewater tank 6. The wastewater tank 6 includes a solenoid valve 61, such as... Figure 4 As shown, the control device also includes a second acquisition module 24, a second judgment module 25, and a second control module 26;

[0070] The second acquisition module 24 is used to acquire the wastewater outlet temperature value;

[0071] In this embodiment, as Figure 1 As shown, a third temperature sensor 13 is installed at the wastewater outlet to detect the temperature of the wastewater at the outlet.

[0072] It should be noted that the wastewater outlet of the heat exchanger is connected to the wastewater tank;

[0073] In addition, the solenoid valves of wastewater tanks are usually normally open solenoid valves.

[0074] The second judgment module 25 is used to determine whether the wastewater outlet temperature value is greater than the storage water temperature value or the preset wastewater temperature value. If so, the second control module 26 is called.

[0075] The second control module 26 is used to control the second water pump to start and the solenoid valve to close, so as to control the wastewater in the wastewater tank to circulate in the heat exchanger.

[0076] As an optional implementation, the second control module 26 is also used to control the second water pump to shut down and open the solenoid valve if it is determined that the wastewater outlet temperature value is not greater than the storage water temperature value or the preset wastewater temperature value.

[0077] In the specific implementation process, before the wastewater flows out of the outlet through the heat exchanger, the temperature of the wastewater after heat collection by the heat exchanger is detected by a third temperature sensor. If the temperature of the wastewater after heat collection by the heat exchanger is greater than the temperature of the water in the storage tank or greater than the preset wastewater temperature (e.g., the preset wastewater temperature is 60 degrees Celsius), it indicates that the temperature of the wastewater after heat collection by the heat exchanger is still relatively high. To prevent the wastewater from being discharged into the sewer and scalding it, the second water pump is turned on and the solenoid valve is closed. This allows the wastewater, still carrying heat after heat collection by the heat exchanger, to flow back into the heat exchanger and circulate again, collecting heat from the wastewater to reuse the heat. This process continues until the detected wastewater outlet temperature is no greater than the storage temperature or the preset wastewater temperature. At this point, the second water pump is turned off and the solenoid valve is opened, allowing the cooled wastewater after heat collection to be discharged into the sewer from the wastewater outlet, thus protecting the sewer.

[0078] This embodiment adds a heat exchanger at the sewage outlet before the wastewater enters the sewer. When the inlet temperature of the wastewater is determined to be higher than the temperature of the water in the storage tank or a preset wastewater temperature, the first water pump is activated to heat the water in the storage tank via the heat exchanger. The heated water is then transferred to the water heater, allowing the water heater to heat warm water. This reuse of heat from the wastewater improves energy efficiency and achieves the goals of energy conservation and emission reduction.

[0079] Example 3

[0080] Figure 5 This is a schematic diagram of an electronic device provided in Embodiment 3 of the present invention. The electronic device includes a memory, a processor, and a computer program stored in the memory and used to run on the processor. When the processor executes the program, it implements the control method of the water heater system in Embodiment 1. Figure 5 The electronic device 30 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0081] like Figure 5 As shown, the electronic device 30 can be manifested as a general-purpose computing device, such as a server device. The components of the electronic device 30 may include, but are not limited to: at least one processor 31, at least one memory 32, and a bus 33 connecting different system components (including memory 32 and processor 31).

[0082] Bus 33 includes a data bus, an address bus, and a control bus.

[0083] The memory 32 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0084] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0085] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the control method of the water heater system in Embodiment 1 of the present invention.

[0086] Electronic device 30 can also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). This communication can be performed via input / output (I / O) interface 35. Furthermore, the model-generating device 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 36. Figure 5 As shown, network adapter 36 communicates with other modules of the model-generated device 30 via bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0087] It should be noted that although several units / modules or sub-units / modules of the electronic device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0088] Example 4

[0089] This embodiment provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method for the water heater system provided in Embodiment 1.

[0090] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0091] In a possible implementation, the present invention can also be implemented as a program product comprising program code, which, when the program product is run on a terminal device, causes the terminal device to execute the control method for implementing the water heater system described in Embodiment 1.

[0092] The program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0093] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A control method for a water heater system, the water heater system comprising a water heater, a water storage tank, and a first water pump, characterized in that, The water heater system further includes a heat exchanger, and the control method includes: Obtain the wastewater inlet temperature value at the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank; Determine whether the wastewater inlet temperature is greater than the storage water temperature or the preset wastewater temperature. If so, control the first water pump to start so as to heat the water in the storage tank through the heat exchanger and transfer the heated water to the water heater through the storage tank. The water heater system also includes a second water pump and a wastewater tank. The wastewater tank includes a solenoid valve, which is a normally open solenoid valve. The control method further includes: Obtain the wastewater outlet temperature value; If the wastewater outlet temperature is greater than the storage water temperature or the preset wastewater temperature, the second water pump is turned on and the solenoid valve is closed to control the wastewater in the wastewater tank to circulate in the heat exchanger. Controlling the wastewater in the wastewater tank to circulate in the heat exchanger means controlling the heated wastewater that has collected heat in the heat exchanger to circulate back into the heat exchanger, where it is again subjected to heat collection. The control method further includes: If it is determined that the inlet temperature of the wastewater is not greater than the storage temperature or the preset wastewater temperature, then the first water pump is controlled to shut down.

2. The control method for a water heater system as described in claim 1, characterized in that, The control method further includes: If it is determined that the wastewater outlet temperature is not greater than the storage water temperature or the preset wastewater temperature, then the second water pump is shut down and the solenoid valve is opened.

3. A control device for a water heater system, the water heater system comprising a water heater, a water storage tank, and a first water pump, characterized in that, The water heater system also includes a heat exchanger, and the control device includes a first acquisition module, a first judgment module, and a first control module; The first acquisition module is used to acquire the wastewater inlet temperature value of the drain outlet connected to the heat exchanger and the water storage temperature value in the water storage tank. The first judgment module is used to determine whether the wastewater inlet temperature is greater than the water storage temperature or the preset wastewater temperature. If so, the first control module is invoked. The first control module is used to control the first water pump to start, so as to heat the water stored in the water storage tank through the heat exchanger, and transfer the heated water to the water heater through the water storage tank; The water heater system also includes a second water pump and a wastewater tank. The wastewater tank includes an electromagnetic valve, which is a normally open electromagnetic valve. The control device also includes a second acquisition module, a second judgment module, and a second control module. The second acquisition module is used to acquire the wastewater outlet temperature value of the sewage outlet; The second judgment module is used to determine whether the wastewater effluent temperature value is greater than the water storage temperature value or the preset wastewater temperature value. If so, the second control module is invoked. The second control module is used to control the second water pump to start and the solenoid valve to control the wastewater in the wastewater tank to circulate in the heat exchanger; the control of the wastewater in the wastewater tank to circulate in the heat exchanger means controlling the wastewater with heat that has been collected by the heat exchanger to circulate back into the heat exchanger, and then collecting heat from the wastewater with heat again through the heat exchanger. The control device further includes: The first control module is further configured to control the first water pump to shut down if it is determined that the wastewater inlet temperature is not greater than the storage water temperature or the preset wastewater temperature.

4. The control device for the water heater system as described in claim 3, characterized in that, The control device further includes: The second control module is further configured to control the second water pump to shut down and the solenoid valve to open if it is determined that the wastewater outlet temperature is not greater than the storage water temperature or the preset wastewater temperature.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and for running on the processor, characterized in that, When the processor executes the computer program, it implements the control method for the water heater system as described in any one of claims 1-2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method of the water heater system as described in any one of claims 1-2.

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