Multi-section water tank detection device and heat pump unit control method

Abstract

The embodiment of the application discloses a multi-section water tank detection device and a heat pump unit control method. The technical scheme provided by the embodiment of the application arranges a plurality of installation boxes at different heights, installs detector devices such as water level sensors and / or temperature sensors in the installation boxes, installs a processing module in the installation box at the highest position, the processing module can determine the detector devices at the corresponding height according to the input and output interfaces of the received detection information, and feeds back the detection information to a heat pump main control board, the heat pump main control board can determine the water level and the water temperature of the water tank according to the detection information of the detector devices at different heights, thereby accurately controlling the water supplementing and heating time, reducing the system energy consumption, and adjusting the distance between the installation boxes to adjust the height of each detector device, thereby adjusting the water supplementing time according to actual needs, and improving the flexibility of the system water supplementing time adjustment.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of heat pump technology, and in particular to a multi-stage water tank detection device and a heat pump unit control method. Background Art

[0002] When a heat pump is producing hot water, it usually heats the water in a water tank to a certain temperature and then shuts down at a constant temperature. When some of the water is used up, the water tank needs to be replenished with external low-temperature water, causing the overall water temperature to drop and the unit needs to restart heating.

[0003] Different water replenishment methods significantly impact the overall energy efficiency of the unit. Currently, the most commonly used method is the float replenishment method, which uses a float to control a water valve to detect the water level. When the water level falls below a certain height, the float valve opens to replenish water. This water level detection method results in frequent unit startup, resulting in higher energy consumption for the heat pump system. Summary of the Invention

[0004] The embodiments of the present application provide a multi-stage water tank detection device and a heat pump unit control method to accurately detect the water level in the water tank that needs to be replenished, control the water replenishment time according to actual needs, and reduce system energy consumption.

[0005] In a first aspect, an embodiment of the present application provides a multi-stage water tank detection device, comprising a processing module, a mounting box, and a detection device, wherein the detection device comprises a water level sensor and / or a temperature sensor, wherein:

[0006] The plurality of installation boxes are arranged at different heights, the processing module is installed in the installation box at the highest position, and the plurality of detection devices are respectively installed in the installation boxes at different heights;

[0007] The highest installation box is connected to the rest of the installation boxes via internal connecting wires. The highest installation box is also connected to an external connecting wire for electrically connecting to a heat pump main control board. The detection device is electrically connected to the processing module via the internal connecting wires, and the processing module is electrically connected to the external connecting wires.

[0008] The detection device is used to detect the water level and / or temperature of the water tank to generate detection information, and send the detection information to the processing module via the internal connection line. The processing module determines the corresponding detection device based on the input and output interface of the received detection information, and sends the detection information corresponding to each detection device to the heat pump main control board via the external connection line.

[0009] Furthermore, the internal connection line has multiple branch line cores, and each is connected to the input and output interface of the processing module. The internal connection line passes through the installation box in sequence, and the branch line cores are led out at the corresponding detection device to be electrically connected to the detection device.

[0010] Furthermore, a wire take-up device for winding up the internal connecting wires is provided between the installation boxes.

[0011] Furthermore, the internal connecting wires are arranged in a one-to-one correspondence with the detection devices, and the lengths of different internal connecting wires are inconsistent. One end of the internal connecting wire is electrically connected to the input and output interface of the processing module, and the other end is electrically connected to the corresponding detection device.

[0012] Furthermore, a wire take-up device for winding up the internal connecting wire is provided at the internal connecting wire.

[0013] Furthermore, the installation box is sealed by resin sealant.

[0014] In a second aspect, an embodiment of the present application provides a heat pump unit control method based on the multi-stage water tank detection device as described in the first aspect, comprising:

[0015] Determine the switch state of the water level sensor and / or the water temperature of the water tank according to the detection signal output by the multi-stage water tank detection equipment;

[0016] In response to the low and / or middle water level sensors being in an open state, the water supply valve is controlled to open to supply water to the water tank until the high water level sensor reaches a closed state, wherein the high, low and middle water level sensors correspond to the water level sensors at the highest position, the lowest position and the position between the highest and the lowest position in the multi-stage water tank detection device;

[0017] In response to the water temperature in the water tank being lower than the set water temperature and the low water level sensor being closed, the circulating heat pump is controlled to start to heat the water in the water tank until the water temperature in the water tank reaches the set water temperature.

[0018] Furthermore, in response to the low and / or middle water level sensors being in the disconnected switching state, controlling the water supply valve to open to supply water to the water tank until the high water level sensor reaches the closed switching state includes:

[0019] Determine whether the switch state of the low water level sensor is disconnected;

[0020] If the switch state of the low water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0021] If the switch state of the low water level sensor is closed, then determine whether the switch state of the middle water level sensor is open;

[0022] If the switch state of the middle water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0023] If the switch state of the middle water level sensor is closed, determine whether the switch state of the high water level sensor is open;

[0024] If the switch state of the high water level sensor is disconnected, the water supply valve will remain in working state;

[0025] If the switch state of the high water level sensor is closed, the water supply valve is controlled to close.

[0026] Furthermore, in response to the water temperature in the water tank being lower than the set water temperature and the low water level sensor being in a closed state, controlling the circulating heat pump to start so as to heat the water in the water tank until the water temperature in the water tank reaches the set water temperature, the method includes:

[0027] Determine whether the switch state of the low water level sensor is disconnected;

[0028] If the switch state of the low water level sensor is closed, it is determined whether the water temperature in the water tank reaches the set water temperature;

[0029] If the water temperature in the water tank does not reach the set water temperature, the circulating heat pump is controlled to start to heat the water in the water tank;

[0030] If the water temperature in the water tank reaches the set water temperature, the circulating heat pump is controlled to shut down.

[0031] In a third aspect, an embodiment of the present application provides a heat pump unit control device, based on the multi-stage water tank detection device as described in the first aspect, including a detection and analysis module, a water level control module, and a water temperature control module, wherein:

[0032] A detection and analysis module, used to determine the switch state of the water level sensor and / or the water temperature of the water tank based on the detection signal output by the multi-stage water tank detection equipment;

[0033] a water level control module, configured to control the water supply valve to open in response to the disconnected switch state of the low and / or middle water level sensors, so as to replenish water to the water tank until the high water level sensor reaches the closed switch state, the high, low and middle water level sensors corresponding to the highest, lowest and remaining water level sensors;

[0034] The water temperature control module is used to control the circulation heat pump to start in response to the closed switch state of the low water level sensor and the water temperature in the water tank is lower than the set water temperature, so as to heat the water in the water tank until the water temperature in the water tank reaches the set water temperature.

[0035] Furthermore, the water level control module is specifically used to:

[0036] Determine whether the switch state of the low water level sensor is disconnected;

[0037] If the switch state of the low water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0038] If the switch state of the low water level sensor is closed, then determine whether the switch state of the middle water level sensor is open;

[0039] If the switch state of the middle water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0040] If the switch state of the middle water level sensor is closed, determine whether the switch state of the high water level sensor is open;

[0041] If the switch state of the high water level sensor is disconnected, the water supply valve will remain in working state;

[0042] If the switch state of the high water level sensor is closed, the water supply valve is controlled to close.

[0043] Furthermore, the water temperature control module is specifically used to:

[0044] Determine whether the switch state of the low water level sensor is disconnected;

[0045] If the switch state of the low water level sensor is closed, it is determined whether the water temperature in the water tank reaches the set water temperature;

[0046] If the water temperature in the water tank does not reach the set water temperature, the circulating heat pump is controlled to start to heat the water in the water tank;

[0047] If the water temperature in the water tank reaches the set water temperature, the circulating heat pump is controlled to shut down.

[0048] In a fourth aspect, an embodiment of the present application provides a computer device, including: a memory and one or more processors;

[0049] The memory is used to store one or more programs;

[0050] When the one or more programs are executed by the one or more processors, the one or more processors implement the multi-stage water tank detection equipment as described in the second aspect.

[0051] In a fifth aspect, an embodiment of the present application provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute the multi-stage water tank detection device as described in the second aspect.

[0052] The embodiment of the present application arranges multiple installation boxes at different heights, installs detection devices such as water level sensors and / or temperature sensors in the installation boxes, and installs a processing module in the highest installation box. The detection devices in each installation box are electrically connected to the processing module through internal connecting lines, thereby sending a detection signal to the main processing module. The processing module can determine the detection device of the corresponding height based on the input and output interface of the received detection information, and feed back the detection information to the heat pump main control board. The heat pump main control board can determine the water level and water temperature of the water tank based on the detection information of the detection devices at different heights, thereby accurately controlling the water replenishment and heating time, reducing the energy consumption of the system, and can adjust the height of each detection device by adjusting the distance between each installation box, thereby adjusting the water replenishment time according to actual needs, thereby improving the flexibility of adjusting the water replenishment time of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a structural diagram of a multi-stage water tank detection device provided in an embodiment of the present application;

[0054] Figure 2 This is a structural diagram of another multi-stage water tank detection device provided in an embodiment of the present application;

[0055] Figure 3 This is a flow chart of a heat pump unit control method provided in an embodiment of the present application;

[0056] Figure 4 This is a schematic diagram of the installation of the multi-stage water tank detection device provided in an embodiment of the present application in a water tank;

[0057] Figure 5 This is a flow chart of another heat pump unit control method provided in an embodiment of the present application;

[0058] Figure 6 This is a structural diagram of a heat pump unit control device provided in an embodiment of the present application;

[0059] Figure 7 It is a structural diagram of a computer device provided in an embodiment of the present application.

[0060] Figure numerals: 1. processing module; 2. installation box; 3. water level sensor; 4. temperature sensor; 5. internal connecting wire; 6. external connecting wire; 7. wire take-up device. DETAILED DESCRIPTION

[0061] To make the objectives, technical solutions, and advantages of this application more apparent, specific embodiments of this application are described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are intended only to illustrate this application and are not intended to limit this application. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to this application, not all of the content.

[0062] In the description of the embodiments of this application, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] It should be noted that before discussing exemplary embodiments in more detail, some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the various operations (or steps) as sequential processes, many of the operations therein can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the various operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0064] Figure 1 A schematic diagram of the structure of a multi-stage water tank detection device provided in an embodiment of the present application is given. Figure 1 As shown, the multi-stage water tank detection device includes a processing module 1, an installation box 2, and a detection device, wherein multiple installation boxes 2 are provided and arranged at different heights. This embodiment is described using three installation boxes 2 as an example. In other embodiments, the number of installation boxes 2 can be selected according to actual needs.

[0065] Specifically, the installation box 2 provided in this embodiment is made of plastic material, and multiple detection devices are installed in the installation boxes 2 at different heights, where the detection devices include water level sensors 3 and / or temperature sensors 4. The water level sensor 3 or the temperature sensor 4 can be installed in the installation boxes 2 at different heights according to actual needs, or the water level sensor 3 and the temperature sensor 4 can be installed at the same time. This embodiment is described by taking the example of installing the water level sensor 3 and the temperature sensor 4 in each installation box 2 at the same time.

[0066] The water level sensor 3 is a non-contact detection type capacitive water level sensor 3, and the temperature sensor 4 is a thermistor. Optionally, in the same installation box 2, the temperature sensor 4 is arranged below the water level sensor 3, so that when the water level sensor 3 detects that the water tank water level reaches the height of the corresponding installation box 2, the temperature sensor 4 can correctly detect the water temperature of the corresponding height of the water tank.

[0067] Further, the processing module 1 is fixedly installed in the highest installation box 2. The processing module 1 provided in the embodiment can be a single-chip microcomputer, an MCU, or the like. The highest installation box 2 is also connected with an external connection line 6 for electrical connection with a heat pump main control board (for example, connected by clamping, bonding, or the like). The heat pump main control board can be electrically connected with the external connection line 6 through an RS485, UART, I2C, SPI, or the like. The end portion of the external connection line 6 located in the installation box 2 is electrically connected to the processing module 1. The heat pump main control board transmits data to the processing module 1 through the external connection line 6 and provides power supply for the processing module 1. The processing module 1 transmits data to the heat pump main control board according to a corresponding communication protocol.

[0068] The highest installation box 2 is connected with the remaining installation boxes 2 through the internal connection line 5 (for example, connected by clamping, bonding, or the like).

[0069] In the embodiment, the upper and lower adjacent installation boxes 2 are connected through the internal connection line 5. Specifically, except for the lowest installation box 2, the upper and lower ends of the installation box 2 are communicated with the interior of the installation box 2, so that the internal connection line 5 passes through the installation box 2 from the upper and lower ends of the installation box 2 and reaches the next installation box 2. The top end of the lowest installation box 2 is communicated with the interior of the installation box 2, so that the bottom end of the internal connection line 5 penetrates into the interior of the installation box 2.

[0070] The detection devices are electrically connected with the processing module 1 through the internal connection line 5. Specifically, the internal connection line 5 has a plurality of branch wire cores (for example, the plurality of branch wire cores are packaged into the internal connection line 5 or the internal connection line 5 is a flat cable), and each branch wire core is connected to an input / output interface of the processing module 1. The internal connection line 5 passes through the installation boxes 2 in sequence and leads out the branch wire cores at the corresponding detection devices (the water level sensor 3 and / or the temperature sensor 4) to be electrically connected with the detection devices (the number of the branch wire cores led out can be determined according to the wiring needs of the detection devices and the processing module 1). The processing module 1 receives the detection information sent by the detection devices through the branch wire cores and supplies power for the detection devices.

[0071] Optionally, the processing module 1 records the detection device connected to each input / output interface, and can determine the specific detection device that sends the detection information based on the specific input / output interface that receives the detection information.

[0072] Furthermore, a wire take-up device 7 for winding up the internal connecting wire 5 is provided between the upper and lower adjacent installation boxes 2. The wire take-up device 7 is used to wind up or unwind the internal connecting wire 5, thereby adjusting the length of the internal connecting wire 5 between the corresponding two adjacent installation boxes 2, thereby adjusting the distance between adjacent installation boxes 2. Optionally, a wire take-up device 7 is provided on the external connecting wire 6 to wind up the external connecting wire 6, thereby adjusting the height of the highest installation box 2.

[0073] Furthermore, after completing the connection between the detection device, the internal connection line 5, the external connection line 6 and the installation box 2, the installation box 2 is sealed with resin sealant to reduce the situation where the detection device short-circuits due to water entering the installation box 2, thereby affecting the detection effect.

[0074] As mentioned above, by arranging multiple installation boxes 2 at different heights, installing detection devices such as water level sensors 3 and / or temperature sensors 4 in the installation boxes 2, and installing the processing module 1 in the highest installation box 2, the detection devices in each installation box 2 are electrically connected to the processing module 1 through the internal connecting line 5, thereby sending a detection signal to the main processing module 1. The processing module 1 can determine the detection device of the corresponding height based on the input and output interface of the received detection information, and feed back the detection information to the heat pump main control board. The heat pump main control board can determine the water level and water temperature of the water tank based on the detection information of the detection devices at different heights, thereby accurately controlling the water replenishment and heating time, reducing the energy consumption of the system, and can adjust the height of each detection device by adjusting the distance between each installation box 2, thereby adjusting the water replenishment time according to actual needs, thereby improving the flexibility of adjusting the water replenishment time of the system.

[0075] Figure 2 This is a structural diagram of another multi-stage water tank detection device provided in an embodiment of the present application. Figure 2 As shown, the multi-stage water tank detection equipment provided in this embodiment is different from the above-mentioned embodiment in that the internal connecting line 5 is set differently.

[0076] Among them, the internal connecting wires 5 provided in this embodiment are arranged in a one-to-one correspondence with the detection devices, and the lengths of different internal connecting wires 5 are inconsistent. One end of the internal connecting wire 5 is electrically connected to the input and output interface of the processing module 1, and the other end is electrically connected to the corresponding detection device.

[0077] Specifically, the top end of each internal connecting cable 5 passes through the interior of the highest mounting box 2 (i.e., the mounting box 2 for mounting the processing module 1) and is electrically connected to the input and output interfaces of the processing module 1. The bottom end of the internal connecting cable 5 passes through the mounting box 2 for mounting the corresponding detection device and is electrically connected to the corresponding detection device. The internal connecting cable 5 has multiple branch wires, each of which is connected to the processing module 1 and the detection device at its ends. The number of branch wires in each internal connecting cable 5 is determined based on the communication and power supply wiring requirements between the corresponding detection device and the processing module 1.

[0078] Furthermore, a wire take-up device 7 for winding up the internal connecting wire 5 is provided at each internal connecting wire 5 , and the wire take-up device 7 can be used to adjust the length of each internal connecting wire 5 individually to achieve adjustment of the height of each installation box 2 .

[0079] After completing the connection between the detection device, internal connection line 5, external connection line 6 and installation box 2, the installation box 2 is sealed with resin sealant to reduce the situation where the detection device short circuits due to water entering the installation box 2 and affect the detection effect.

[0080] The difference between the multi-stage water tank detection equipment provided in this embodiment and the multi-stage water tank detection equipment provided in the above embodiment when in use is that, in this embodiment, the height adjustment of each installation box 2 is performed independently, the height adjustments between the installation boxes 2 do not interfere with each other, and the detection devices can be distributed at different positions in the water tank by extending the length of the internal connecting line 5, thereby reducing mutual interference between adjacent internal connecting lines 5 or installation boxes 2.

[0081] Figure 3 A flow chart of a heat pump unit control method provided in an embodiment of the present application is given. The heat pump unit control method provided in an embodiment of the present application can be executed by a heat pump unit control device and implemented based on the detection information provided by the multi-stage water tank detection equipment provided in any of the above embodiments. The heat pump unit control method device can be implemented by hardware and / or software and integrated into a computer device (such as a heat pump main control board).

[0082] The following description is made by taking the heat pump unit control method device to perform the heat pump unit control method as an example. Figure 1 , the heat pump unit control method includes:

[0083] S101: Determine the switch state of the water level sensor and / or the water temperature of the water tank according to the detection signal output by the multi-stage water tank detection equipment.

[0084] The heat pump unit control method provided in this embodiment is performed based on the multi-stage water tank detection equipment provided in any of the above embodiments.

[0085] Figure 4A mounting schematic diagram of the multi-section water tank detection device provided by the embodiment of the present application in the water tank is shown in FIG. 1. Figure 4 The multi-section water tank detection device provided by the first embodiment is taken as an example for description. As an example, the multi-section water tank detection device is vertically hoisted into the water tank from the bottom of the water tank, and the height of each mounting box in the water tank is adjusted by the take-up device. The mounting boxes are arranged at different heights in the water tank, so that the detection devices in the mounting boxes detect the water level and / or water temperature at different heights in the water tank and generate corresponding detection signals.

[0086] For example, in the embodiment, three mounting boxes are provided as an example. The detection devices in each mounting box include a water level sensor and a temperature sensor. The highest mounting box is arranged at the upper limit of the water level of the water tank, i.e., when the water level of the water tank reaches the upper limit, the water supply to the water tank needs to be stopped. The lowest mounting box is arranged at the lower limit of the water level of the water tank, i.e., when the water level of the water tank drops below the lower limit, the water needs to be immediately supplied and cannot be heated. The mounting box in the middle is arranged at the pre-set water supply line height, i.e., when the water level of the water tank is lower than the water supply line height, the water needs to be supplied to the water tank.

[0087] After the height adjustment of the mounting boxes is completed, the external connecting line is fixed to the top of the water tank, and the head of the external connecting line is electrically connected to the communication and power supply part of the heat pump main control board, for receiving the detection information uploaded by the processing module and providing power supply to the processing module.

[0088] As an example, the processing module determines the water level sensor and the temperature sensor that send the detection signals according to the input and output interfaces of the received detection signals, and feeds back the detection signals and the corresponding water level sensor and temperature sensor to the heat pump main control board,

[0089] Further, the heat pump main control board determines the water level sensor switch state at each height position in the water tank and the water temperature of the water tank according to the detection signals corresponding to the water level sensors and the temperature sensors at different heights. The water level sensor is a switch type capacitive water level sensor, and the output detection signal of the water level sensor can reflect the switch state thereof, for example, when the water level of the water tank rises to the position of the water level sensor, the water level sensor is switched from the open state to the closed state.

[0090] The water temperature of the water tank can be directly determined from the detection signal output by the temperature sensor at the lowest position, or the water level sensor with the closed switch state is first determined, and the water temperature of the water tank detected by the temperature sensor on the same mounting box is averaged, and the average value is taken as the final water temperature of the water tank. It can be understood that since the temperature sensor is installed inside the mounting box, it does not directly reflect the water temperature of the water tank, and compensation and correction can be made on the basis of the temperature value output by the temperature sensor (for example, 5℃ is added to the output temperature value as the water temperature of the water tank).

[0091] S102: In response to the low and / or middle water level sensors being in the disconnected switching state, controlling the water supply valve to open to supply water to the water tank until the high water level sensor reaches the closed switching state.

[0092] Among them, the high, low and middle water level sensors correspond to the water level sensors at the highest position, the lowest position and the position between the highest and the lowest position in the multi-stage water tank detection equipment.

[0093] Illustratively, the switching status of the water level sensors at each height position is determined according to the above steps, and when the low-level and / or middle-level water level sensors are in the disconnected switching state, and the high-level water level sensor is in the disconnected open-close state, the water supply valve is controlled to open to replenish water to the water tank, and the switching status of the water level sensors at each height position is detected in real time. When the high-level water level sensor reaches the closed switching state, it is considered that the water tank is full of water, and the water supply valve is controlled to close to stop replenishing water to the water tank.

[0094] For example, when the water tank is initially empty, the water level sensors at all three locations are in the disconnected state. The heat pump main control board controls the water supply valve to open, allowing water to be added to the tank through the water supply pipe. When the water level exceeds the lower limit, the low water level sensor switches to the closed state, while the water level sensors at other locations remain in the disconnected state. The heat pump main control board controls the water supply valve to continue opening, replenishing the water tank.

[0095] When the water is replenished to a height exceeding the water replenishment line, the switch state of the middle water level sensor changes to closed, and the high water level sensor remains in the disconnected switch state. The heat pump main control board controls the water replenishment valve to continue to open to replenish water for the water tank.

[0096] When the water level reaches the upper limit, the water level sensors at all three height positions are in the closed switch state. The heat pump main control board controls the water supply valve to close, stopping water supply to the water tank. When the hot water in the water tank is used and the water level drops below the water supply line, the switch states of the middle and high water level sensors change to the open state. The heat pump main control board controls the water supply valve to open, replenishing the water tank until the water level sensors at all three height positions are in the closed switch state.

[0097] S103: In response to the water temperature in the water tank being lower than the set water temperature and the low water level sensor being closed, the circulating heat pump is controlled to start to heat the water in the water tank until the water temperature in the water tank reaches the set water temperature.

[0098] For example, the water tank temperature is determined according to the above steps. When the water tank temperature is lower than the set temperature and the low water level sensor is in the closed state, the heat pump main control board controls the circulating heat pump (including the heat pump main unit and the main unit circulating pump) to turn on and heat the water in the water tank. The water tank temperature is also monitored in real time. When the water tank temperature reaches the set temperature, the circulating heat pump is controlled to turn off and stop heating the water in the water tank.

[0099] For example, when the water tank is initially empty, the water temperature is lower than the set temperature. However, the low water level sensor is in the disconnected state, so the heat pump main control board shuts down the circulating heat pump and waits for the water tank to be refilled. When the water level in the tank reaches the lower limit, the low water level sensor is in the closed state, and the water temperature in the tank is lower than the set temperature, the heat pump main control board turns on the circulating heat pump to heat the water in the tank. The board also monitors the water temperature in the tank in real time, and shuts down the circulating heat pump when the water temperature reaches the set temperature.

[0100] As described above, by arranging multiple installation boxes at different heights, installing detection devices such as water level sensors and / or temperature sensors in the installation boxes, and installing a processing module in the highest installation box, the detection devices in each installation box are electrically connected to the processing module through internal connecting lines, thereby sending a detection signal to the main processing module. The processing module can determine the detection device of the corresponding height based on the input and output interface of the received detection information, and feed back the detection information to the heat pump main control board. The heat pump main control board can determine the water level and water temperature of the water tank based on the detection information of the detection devices at different heights, thereby accurately controlling the water replenishment and heating time, reducing the energy consumption of the system, and can adjust the height of each detection device by adjusting the distance between each installation box, thereby adjusting the water replenishment time according to actual needs, thereby improving the flexibility of adjusting the water replenishment time of the system.

[0101] Based on the above embodiments, Figure 5 This is a flow chart of another heat pump unit control method provided by an embodiment of the present application. This heat pump unit control method is a specific implementation of the above heat pump unit control method. Figure 5 , the heat pump unit control method includes:

[0102] S201: Determine the switch state of the water level sensor and / or the water temperature of the water tank according to the detection signal output by the multi-stage water tank detection equipment.

[0103] S202: Determine whether the switch state of the low water level sensor is disconnected.

[0104] Specifically, it is determined whether the switch state of the low water level sensor is disconnected. If the low water level sensor is disconnected, the process jumps to step S203; otherwise, the process jumps to step S207.

[0105] S203: Control the water supply valve to open to supply water to the water tank.

[0106] Specifically, if the low water level sensor is off, and the water level in the water tank is below the lower limit, the water supply valve is opened to supply water to the water tank through the water supply pipe. After the water supply valve is opened, the process returns to step S201 to obtain the updated water level sensor switch status and / or water tank water temperature.

[0107] S204: Determine whether the water temperature in the water tank reaches the set water temperature.

[0108] Specifically, if the switch state of the low water level sensor is closed, it is further determined whether the water temperature in the water tank has reached the set water temperature. If the water temperature in the water tank has not reached the set water temperature, the process jumps to step S205; if the water temperature in the water tank has reached the set water temperature, the process jumps to step S206.

[0109] S205: Control the circulating heat pump to start, so as to heat the water in the water tank.

[0110] Specifically, if the water temperature in the water tank does not reach the set water temperature, the circulating heat pump is controlled to start to heat the water in the water tank. After starting the circulating heat pump, the process jumps to step S207.

[0111] S206: Control the circulating heat pump to shut down.

[0112] Specifically, if the water temperature in the water tank reaches the set water temperature, the circulating heat pump is controlled to be turned off, and the unit stops heating the water in the water tank. After turning off the circulating heat pump, the process jumps to step S207.

[0113] S207: Determine whether the switch state of the middle water level sensor is disconnected.

[0114] Specifically, it is determined whether the switch state of the middle water level sensor is disconnected. If it is determined that the middle water level sensor is disconnected, the process jumps to step S208; otherwise, the process jumps to step S209.

[0115] S208: Control the water supply valve to open to supply water to the water tank.

[0116] Specifically, if the mid-level sensor is off, indicating the water level in the tank is between the lower limit and the fill line, and the tank needs to be refilled, the refill valve is opened, and the refill pipe is used to refill the tank. After the refill valve is opened, the process returns to step S201 to obtain the updated water level sensor status and / or tank water temperature.

[0117] S209: Determine whether the switch state of the high water level sensor is disconnected.

[0118] Specifically, if the switch state of the middle water level sensor is closed, it is determined whether the switch state of the high water level sensor is disconnected. If it is determined that the high water level sensor is disconnected, jump to step S210; otherwise, jump to step S211.

[0119] S210: Keep the water supply valve in working state.

[0120] Specifically, if the high water level sensor is off, the water level in the water tank may have dropped from the upper limit due to hot water use, and it is not necessary to open the water supply valve for replenishment. Alternatively, the water level may have risen due to the opening of the water supply valve, and it is necessary to continue replenishing the water tank. In this case, the water supply valve may be kept open, closed, or the water tank may continue to be replenished through the water supply pipe. After determining that the water supply valve is maintained in the working state, the process returns to step S201 to obtain the updated water level sensor switch state and / or water tank water temperature.

[0121] S211: Control the water supply valve to close.

[0122] Specifically, if the high water level sensor is closed, the water level in the water tank has reached the upper limit, and the water supply valve is closed to stop supplying water to the water tank. After closing the water supply valve, the process returns to step S201 to obtain the updated water level sensor switch state and / or water tank water temperature.

[0123] By arranging multiple installation boxes at different heights, installing detection devices such as water level sensors and / or temperature sensors within the installation boxes, and installing a processing module in the highest installation box, the detection devices within each installation box are electrically connected to the processing module via internal connecting wires, thereby sending detection signals to the main processing module. The processing module can determine the detection device at the corresponding height based on the input and output interfaces receiving the detection information, and feed the detection information back to the heat pump main control board. The heat pump main control board can determine the water level and water temperature in the water tank based on the detection information from the detection devices at different heights, thereby accurately controlling the water replenishment and heating time, reducing system energy consumption. The height of each detection device can be adjusted by adjusting the distance between the installation boxes, thereby adjusting the water replenishment time according to actual needs, thereby increasing the flexibility of the system water replenishment time adjustment. In addition, the water tank will not be replenished until the water level in the hot water cup in the water tank falls below the water replenishment line height, effectively reducing the energy waste caused by frequent unit startup.

[0124] Figure 6 A schematic diagram of the structure of a heat pump unit control device provided in an embodiment of the present application is given. The heat pump unit control device is implemented based on the multi-stage water tank detection device provided in any of the above embodiments. Figure 6 The heat pump unit control device includes a detection and analysis module 61 , a water level control module 62 and a water temperature control module 63 .

[0125] Among them, the detection and analysis module 61 is used to determine the switch state of the water level sensor and / or the water temperature of the water tank according to the detection signal output by the multi-stage water tank detection equipment; the water level control module 62 is used to respond to the disconnected switch state of the low and / or middle water level sensors, control the water supply valve to open, so as to replenish water to the water tank until the high water level sensor reaches a closed switch state, and the high, low and middle water level sensors correspond to the highest, lowest and other water level sensors; the water temperature control module 63 is used to respond to the closed switch state of the low water level sensor and the water temperature of the water tank is lower than the set water temperature, control the circulation heat pump to open, so as to heat the water in the water tank until the water temperature of the water tank reaches the set water temperature.

[0126] As described above, by arranging multiple installation boxes at different heights, installing detection devices such as water level sensors and / or temperature sensors in the installation boxes, and installing a processing module in the highest installation box, the detection devices in each installation box are electrically connected to the processing module through internal connecting lines, thereby sending a detection signal to the main processing module. The processing module can determine the detection device of the corresponding height based on the input and output interface of the received detection information, and feed back the detection information to the heat pump main control board. The heat pump main control board can determine the water level and water temperature of the water tank based on the detection information of the detection devices at different heights, thereby accurately controlling the water replenishment and heating time, reducing the energy consumption of the system, and can adjust the height of each detection device by adjusting the distance between each installation box, thereby adjusting the water replenishment time according to actual needs, thereby improving the flexibility of adjusting the water replenishment time of the system.

[0127] Furthermore, the water level control module 62 is specifically configured to:

[0128] Determine whether the switch state of the low water level sensor is disconnected;

[0129] If the switch state of the low water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0130] If the switch state of the low water level sensor is closed, then determine whether the switch state of the middle water level sensor is open;

[0131] If the switch state of the middle water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank;

[0132] If the switch state of the middle water level sensor is closed, then determine whether the switch state of the high water level sensor is open;

[0133] If the switch state of the high water level sensor is disconnected, the water supply valve will remain in working state;

[0134] If the switch state of the high water level sensor is closed, the water supply valve is controlled to close.

[0135] Furthermore, the water temperature control module 63 is specifically used to:

[0136] Determine whether the switch state of the low water level sensor is disconnected;

[0137] If the switch state of the low water level sensor is closed, it is determined whether the water temperature in the water tank reaches the set water temperature;

[0138] If the water temperature in the water tank does not reach the set water temperature, the circulating heat pump is controlled to start to heat the water in the water tank;

[0139] If the water temperature in the water tank reaches the set water temperature, the circulating heat pump is controlled to shut down.

[0140] The embodiment of the present application also provides a computer device, which can integrate the heat pump unit control device provided in the embodiment of the present application. Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of the present application. Figure 7 The computer device includes: an input device 73, an output device 74, a memory 72, and one or more processors 71; the memory 72 is used to store one or more programs; when the one or more programs are executed by the one or more processors 71, the one or more processors 71 implement the heat pump unit control method provided in the above embodiment. The input device 73, the output device 74, the memory 72, and the processor 71 can be connected by a bus or other means. Figure 7 The bus connection is taken as an example.

[0141] The memory 72 is a computing device-readable storage medium that can be used to store software programs, computer executable programs, and modules, such as the program instructions / modules corresponding to the heat pump unit control method described in any embodiment of the present application (for example, the detection and analysis module 61, the water level control module 62, and the water temperature control module 63 in the heat pump unit control device). The memory 72 may mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created based on the use of the device, etc. In addition, the memory 72 may include a high-speed random access memory and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 72 may further include a memory remotely located relative to the processor 71, and these remote memories can be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0142] The input device 73 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 74 may include a display device such as a display screen.

[0143] The processor 71 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 72, that is, realizes the above-mentioned heat pump unit control method.

[0144] The heat pump unit control device, equipment and computer provided above can be used to execute the heat pump unit control method provided in any of the above embodiments, and have corresponding functions and beneficial effects.

[0145] An embodiment of the present application also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a heat pump unit control method as provided in the above embodiment, the heat pump unit control method comprising: determining a water level sensor switch state and / or a water tank water temperature according to a detection signal output by a multi-stage water tank detection device; in response to a switch state in which the low and / or middle water level sensors are disconnected, controlling a water replenishment valve to open to replenish water to the water tank until the high water level sensor reaches a closed switch state, the high, low and middle water level sensors corresponding to the water level sensors at the highest position, the lowest position and between the highest and lowest positions in the multi-stage water tank detection device; in response to a switch state in which the water tank water temperature is lower than a set water temperature and the low water level sensor is closed, controlling a circulating heat pump to open to heat the water in the water tank until the water tank water temperature reaches the set water temperature.

[0146] Storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROMs, floppy disks, or tape drives; computer system memory or random access memory, such as DRAM, DDRRAM, SRAM, EDORAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (such as hard disks or optical storage); registers or other similar types of memory elements, etc. Storage media may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a different second computer system that is connected to the first computer system via a network (such as the Internet). The second computer system can provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that can reside in different locations (e.g., in different computer systems connected via a network). The storage medium can store program instructions (e.g., embodied as a computer program) that can be executed by one or more processors.

[0147] Of course, the storage medium containing computer-executable instructions provided in the embodiment of the present application is not limited to the heat pump unit control method described above, and can also execute related operations in the heat pump unit control method provided in any embodiment of the present application.

[0148] The heat pump unit control device, equipment and storage medium provided in the above embodiments can execute the heat pump unit control method provided in any embodiment of the present application. For technical details not described in detail in the above embodiments, please refer to the heat pump unit control method provided in any embodiment of the present application.

[0149] The above are only preferred embodiments of the present application and the technical principles employed. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that are possible for those skilled in the art will not depart from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include more other equivalent embodiments without departing from the concept of the present application. The scope of the present application is determined by the scope of the claims.

Claims

1. A multi-stage water tank detection device, characterized in that: It includes a processing module, a mounting box and a detection device, wherein the detection device includes a water level sensor and / or a temperature sensor, wherein: The plurality of installation boxes are arranged at different heights, the processing module is installed in the installation box at the highest position, and the plurality of detection devices are respectively installed in the installation boxes at different heights; The highest installation box is connected to the rest of the installation boxes via an internal connecting wire. The highest installation box is also connected to an external connecting wire for electrically connecting to a heat pump main control board. The detection device is electrically connected to the processing module via the internal connecting wire. The processing module is electrically connected to the external connecting wire. The internal connecting wires are arranged in a one-to-one correspondence with the detection devices, and the lengths of different internal connecting wires are inconsistent. One end of the internal connecting wire is electrically connected to the input and output interface of the processing module, and the other end is electrically connected to the corresponding detection device. The detection device is used to detect the water level and / or temperature of the water tank to generate detection information, and send the detection information to the processing module via the internal connection line. The processing module determines the corresponding detection device based on the input and output interface of the received detection information, and sends the detection information corresponding to each detection device to the heat pump main control board via the external connection line.

2. The multi-stage water tank detection equipment according to claim 1, characterized in that: The internal connection line has a plurality of branch line cores, each of which is connected to the input and output interface of the processing module. The internal connection line passes through the installation box and leads out branch line cores at locations corresponding to the detection device to be electrically connected to the detection device.

3. The multi-stage water tank detection equipment according to claim 1, characterized in that: A wire take-up device for winding up the internal connecting wire is provided at the internal connecting wire.

4. The multi-stage water tank detection equipment according to claim 1, characterized in that: The installation box is sealed by resin sealant.

5. A heat pump unit control method, based on the multi-stage water tank detection device according to any one of claims 1 to 4, characterized in that: include: Determine the switch state of the water level sensor and / or the water temperature of the water tank according to the detection signal output by the multi-stage water tank detection equipment; In response to the low and / or middle water level sensors being in an open state, the water supply valve is controlled to open to supply water to the water tank until the high water level sensor reaches a closed state, wherein the high, low and middle water level sensors correspond to the water level sensors at the highest position, the lowest position and the position between the highest and the lowest position in the multi-stage water tank detection device; Determine whether the switch state of the low water level sensor is disconnected. If the switch state of the low water level sensor is closed, determine whether the water temperature in the water tank reaches the set water temperature. If the water temperature in the water tank does not reach the set water temperature, control the circulating heat pump to turn on to heat the water in the water tank. If the water temperature in the water tank reaches the set water temperature, control the circulating heat pump to turn off.

6. The heat pump unit control method according to claim 5, characterized in that: The method of controlling the water supply valve to open in response to the low and / or middle water level sensors being disconnected to supply water to the water tank until the high water level sensor reaches a closed state includes: Determine whether the switch state of the low water level sensor is disconnected; If the switch state of the low water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank; If the switch state of the low water level sensor is closed, then determine whether the switch state of the middle water level sensor is open; If the switch state of the middle water level sensor is disconnected, the water supply valve is controlled to open to replenish water to the water tank; If the switch state of the middle water level sensor is closed, then determine whether the switch state of the high water level sensor is open; If the switch state of the high water level sensor is disconnected, the water supply valve will remain in working state; If the switch state of the high water level sensor is closed, the water supply valve is controlled to close.

7. A heat pump unit control device, based on the multi-stage water tank detection device according to any one of claims 1 to 4, characterized in that: It includes a detection and analysis module, a water level control module and a water temperature control module, among which: A detection and analysis module, used to determine the switch state of the water level sensor and / or the water temperature of the water tank based on the detection signal output by the multi-stage water tank detection equipment; a water level control module, configured to control the water supply valve to open in response to the disconnected switch state of the low and / or middle water level sensors, so as to replenish water to the water tank until the high water level sensor reaches the closed switch state, the high, low and middle water level sensors corresponding to the highest, lowest and remaining water level sensors; The water temperature control module is used to determine whether the switch state of the low water level sensor is disconnected. If the switch state of the low water level sensor is closed, it determines whether the water temperature in the water tank reaches the set water temperature. If the water temperature in the water tank does not reach the set water temperature, the circulating heat pump is controlled to turn on to heat the water in the water tank. If the water temperature in the water tank reaches the set water temperature, the circulating heat pump is controlled to turn off.

8. A computer device, characterized in that: include: memory and one or more processors; The memory is used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the heat pump unit control method according to any one of claims 5 to 6.

9. A storage medium containing computer-executable instructions, characterized in that: The computer executable instructions, when executed by a computer processor, are used to execute the heat pump unit control method according to any one of claims 5 to 6.

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