Multi-zone heating method, system, and storage medium

Abstract

The present application relates to the technical field of heat pump system, and discloses a multi-region heating method, system and storage medium.The method comprises the following steps: after receiving a heating instruction, determining a target heating region based on the heating instruction, and controlling a heat pump unit to obtain a heat source in the environment to heat water in a buffer water tank; when the water temperature in the buffer water tank reaches a first temperature threshold of the target heating region, controlling a heating device in the target heating region to drive the water in the buffer water tank to flow to the target heating region; detecting the ambient temperature in the target heating region and the water temperature in the buffer water tank; when the ambient temperature and / or the water temperature reaches a target temperature of the target heating region, stopping the heat pump unit from heating the water in the buffer water tank, and controlling the working parameters of the heating device in the target heating region according to a preset control strategy to continue driving the water.The present application solves the problem that the existing heating method has excessively high or low temperature, and cannot balance comfort and energy saving.

Description

Technical Field

[0001] This invention relates to the field of heat pump system technology, and in particular to a multi-zone heating method, system and storage medium. Background Technology

[0002] Currently, heat pumps typically need to be connected to multiple indoor heating devices. The required water temperature varies depending on the heating device to maintain indoor comfort. For example, underfloor heating requires a heat pump water temperature between 30 and 35°C, fan coil units require 40 to 45°C, and radiant radiators require 47 to 55°C. Furthermore, the energy efficiency of the heat pump varies depending on the outlet water temperature; generally, the energy efficiency for producing low-temperature hot water is higher than that for producing high-temperature hot water. When multiple different types of heating devices are located in different spaces within the same system, minimizing the heat pump's power consumption while meeting the heating needs of each space requires different controls for the heat pump based on the operating status of each device.

[0003] Existing solutions do not consider the differences in water temperature requirements of different heating devices. They all use the heat source with the highest temperature for heating. If the temperature in each area becomes uncomfortable, the heat pump is turned off directly. However, this method cannot achieve constant temperature control, and the frequent start-up of the heat pump results in high energy consumption and lower overall system energy efficiency. It cannot balance comfort and energy saving. Summary of the Invention

[0004] The main objective of this invention is to solve the problem that existing single heat pump multi-zone heating schemes fail to automatically adjust the temperature based on the heat source and the heating status of each zone, resulting in excessively high or low temperatures and an inability to balance comfort and energy efficiency.

[0005] The first aspect of this invention provides a multi-zone heating method applied to a heat pump heating system. The heat pump heating system includes a heat pump unit, a buffer tank, and at least two heating devices, each installed in a corresponding heating zone. Each heating device includes at least a water pump and a heat dissipation device. The multi-zone heating method includes:

[0006] Upon receiving a heating command, the target heating area is determined based on the heating command, and the heat pump unit is controlled to obtain heat sources in the environment to heat the water in the buffer tank.

[0007] When the water temperature in the buffer tank reaches the first temperature threshold of the target heating area, the heating device in the target heating area is controlled to drive the water in the buffer tank to flow to the target heating area.

[0008] Detect the ambient temperature in the target heating area and the water temperature in the buffer tank;

[0009] When the ambient temperature and / or the water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating device in the target heating area are controlled according to the preset control strategy to continue driving the water.

[0010] Optionally, in a first implementation of the first aspect of the present invention, if the number of target heating areas is at least two, when the water temperature in the buffer tank reaches a first temperature threshold of the target heating area, controlling the water pump in the heating device in the target heating area to drive the water in the buffer tank to flow to the target heating area includes:

[0011] Detect whether the water temperature in the buffer tank reaches the lowest target temperature in at least two target heating zones;

[0012] If the minimum target temperature is reached, the water pump in the heating device in the target heating area corresponding to the minimum target temperature is controlled to drive the water in the buffer tank to flow to the target heating area corresponding to the minimum target temperature.

[0013] Detect whether the water temperature in the buffer tank reaches the second lowest target temperature in at least two target heating zones, wherein the second lowest target temperature is greater than the lowest target temperature;

[0014] If the second lowest target temperature is reached, the water pump in the heating device in the target heating area corresponding to the lowest target temperature is controlled to mix the water in the buffer tank with the return water and then flow to the target heating area corresponding to the lowest target temperature. The water pump in the heating device in the remaining target heating areas is also controlled to drive the water in the buffer tank to flow to the remaining target heating areas.

[0015] Optionally, in a second implementation of the first aspect of the invention, after detecting that the water temperature in the buffer tank has reached the lowest target temperature in at least two target heating zones, the method further includes:

[0016] The water pumps in the heating devices of the at least two target heating areas are controlled to drive the water in the buffer tank to flow to the corresponding target heating areas.

[0017] Optionally, in a third implementation of the first aspect of the present invention, the heating device controlling the heating area corresponding to the lowest target temperature mixes the water in the buffer tank with the return water and then flows it to the target heating area corresponding to the lowest target temperature, comprising:

[0018] Start the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature;

[0019] Determine the return water temperature in the buffer tank, and calculate the mixing ratio of inlet and return water in the three-way valve based on the second lowest target temperature, the lowest target temperature, and the return water temperature;

[0020] Based on the mixing ratio, the opening degree of each valve in the three-way valve is controlled by a PID algorithm, and the mixed water is driven by a water pump on the heating device to flow to the target heating area corresponding to the lowest target temperature.

[0021] Optionally, in a fourth implementation of the first aspect of the present invention, the step of controlling the operating parameters of the heating device in the target heating area to continue driving water according to a preset control strategy includes:

[0022] Obtain the real-time temperature in the target heating area;

[0023] Calculate the temperature difference between the real-time temperature and the target temperature;

[0024] The operating frequency correction value corresponding to the temperature difference value is retrieved from the preset parameter control table, wherein the parameter control table is a correspondence table between the temperature difference value and the frequency;

[0025] The actual operating frequency of the water pump in the heating device is adjusted based on the operating frequency correction value to drive the water in the buffer tank.

[0026] Optionally, in a fifth implementation of the first aspect of the present invention, after controlling the operating parameters of the heating device in the target heating area according to a preset control strategy to continue driving the water, the method further includes:

[0027] The inlet water temperature in the target heating area is detected, and the inlet water temperature is compared with a preset limit temperature value;

[0028] If the inlet water temperature is not less than the limit temperature value and continues for a preset time, the heating device in the target heating area will stop driving the water and a prompt message will be generated to notify the heat pump heating system to be maintained.

[0029] Optionally, in a sixth implementation of the first aspect of the present invention, after controlling the operating parameters of the heating device in the target heating area according to a preset control strategy to continue driving the water, the method further includes:

[0030] Obtain the location information of the target heating area, and determine the temperature monitoring time range based on the location information;

[0031] Within the specified temperature monitoring time range, monitor the actual ambient temperature of the target heating area;

[0032] If the actual ambient temperature does not reach the target temperature, then output heating fault information for the target heating area.

[0033] A second aspect of the present invention provides a heat pump heating system, characterized in that the heat pump heating system comprises: a heat pump unit, a buffer water tank, at least two heating devices, and a control device, each heating device being installed on a corresponding heating area, each heating device comprising at least a water pump and a heat dissipation device, and the control device comprising:

[0034] The heating module is used to determine the target heating area based on the heating command after receiving the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer water tank.

[0035] The drive module is used to control the water pump in the heating device in the target heating area to drive the water in the buffer tank to flow to the target heating area when the water temperature in the buffer tank reaches the first temperature threshold of the target heating area.

[0036] The detection module is used to detect the ambient temperature in the target heating area and the water temperature in the buffer tank;

[0037] The control module is used to stop the heat pump unit from heating the water in the buffer tank when the ambient temperature and / or the water temperature reaches the target temperature of the target heating area, and to control the operating parameters of the heating device in the target heating area to continue driving the water according to a preset control strategy.

[0038] Optionally, in a first implementation of the second aspect of the present invention, the driving module includes:

[0039] The first detection unit is used to detect whether the water temperature in the buffer tank reaches the lowest target temperature in at least two target heating areas when there are at least two target heating areas.

[0040] The first driving unit is used to control the water pump in the heating device in the target heating area corresponding to the minimum target temperature to drive the water in the buffer water tank to flow to the target heating area corresponding to the minimum target temperature when the minimum target temperature is detected to be reached.

[0041] The second detection unit is used to detect whether the water temperature in the buffer tank reaches the second lowest target temperature in at least two target heating areas, wherein the second lowest target temperature is greater than the lowest target temperature.

[0042] The second drive unit is configured to, upon detecting that the second lowest target temperature has been reached, control the water pump in the heating device in the target heating area corresponding to the lowest target temperature to mix the water in the buffer water tank with the return water and then flow it to the target heating area corresponding to the lowest target temperature, and control the water pump in the heating device in the remaining target heating areas to drive the water in the buffer water tank to flow to the remaining target heating areas.

[0043] Optionally, in a second implementation of the second aspect of the present invention, the first driving unit is further configured to: control the water pumps in the heating devices in the at least two target heating areas to drive the water in the buffer tank to flow to the corresponding target heating areas respectively.

[0044] Optionally, in a third implementation of the second aspect of the present invention, the second driving unit is specifically used for:

[0045] Start the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature;

[0046] Determine the return water temperature in the buffer tank, and calculate the mixing ratio of inlet and return water in the three-way valve based on the second lowest target temperature, the lowest target temperature, and the return water temperature;

[0047] Based on the mixing ratio, the opening degree of each valve in the three-way valve is controlled by a PID algorithm, and the mixed water is driven by a water pump on the heating device to flow to the target heating area corresponding to the lowest target temperature.

[0048] Optionally, in a fourth implementation of the second aspect of the present invention, the control module includes:

[0049] The acquisition unit is used to acquire the real-time temperature of the target heating area;

[0050] A calculation unit is used to calculate the temperature difference between the real-time temperature and the target temperature;

[0051] The query unit is used to query the operating frequency correction value corresponding to the temperature difference value from a preset parameter control table, wherein the parameter control table is a correspondence table between temperature difference value and frequency;

[0052] The adjustment unit is used to adjust the actual operating frequency of the water pump in the heating device based on the operating frequency correction value, so as to drive the water in the buffer tank.

[0053] Optionally, in a fifth implementation of the second aspect of the present invention, the heat pump heating system further includes a first monitoring module, which is specifically used for:

[0054] The inlet water temperature in the target heating area is detected, and the inlet water temperature is compared with a preset limit temperature value;

[0055] If the inlet water temperature is not less than the limit temperature value and continues for a preset time, the heating device in the target heating area will stop driving the water and a prompt message will be generated to notify the heat pump heating system to be maintained.

[0056] Optionally, in a sixth implementation of the second aspect of the present invention, the heat pump heating system further includes a second monitoring module, which is specifically used for:

[0057] Obtain the location information of the target heating area, and determine the temperature monitoring time range based on the location information;

[0058] Within the specified temperature monitoring time range, monitor the actual ambient temperature of the target heating area;

[0059] If the actual ambient temperature does not reach the target temperature, then output heating fault information for the target heating area.

[0060] A third aspect of the present invention provides a heat pump heating system, comprising: a memory and at least one processor, wherein the memory stores instructions, and the memory and the at least one processor are interconnected via a circuit; the at least one processor invokes the instructions in the memory to cause the heat pump heating system to perform the steps of the above-described multi-zone heating method.

[0061] A fourth aspect of the present invention provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the steps of the multi-zone heating method described above.

[0062] The beneficial effects achieved by this application are:

[0063] By implementing the above-mentioned solution, after determining the target heating area based on the heating command, the heat pump unit is controlled to exchange heat sources in the environment to heat the water in the buffer tank. When the water temperature reaches the first temperature threshold, the heating devices in the target heating area are controlled to drive the water in the buffer tank for heating. During the heating process, the ambient temperature in the target heating area and the water temperature in the buffer tank are monitored in real time. When the ambient temperature and / or the water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating devices in the target heating area are controlled according to the preset control strategy to continue driving the water. By setting up a buffer tank to control the inflow and outflow of water and heating in the target heating area, unified water supply is achieved. At the same time, by monitoring the real-time temperature in the target heating area during the heating process and using the preset control strategy to control the operating parameters of the corresponding heating devices, this method not only achieves zoned heating detection, avoiding excessively high or low temperatures, but also achieves energy consumption control of the heating devices in each zone, enabling the entire heat pump heating system to balance comfort and energy efficiency. Attached Figure Description

[0064] Figure 1 This is a schematic diagram of the first embodiment of the multi-zone heating method in this invention;

[0065] Figure 2 This is a schematic diagram of a second embodiment of the multi-zone heating method in this invention;

[0066] Figure 3 This is a schematic diagram of the third embodiment of the multi-zone heating method in this invention;

[0067] Figure 4 This is a design drawing of a heat pump heating system in an embodiment of the present invention;

[0068] Figure 5 This is a schematic diagram of one embodiment of the heat pump heating system in this invention;

[0069] Figure 6 This is a schematic diagram of another embodiment of the heat pump heating system in this invention;

[0070] Figure 7 This is a schematic diagram of another embodiment of the heat pump heating system in this invention. Detailed Implementation

[0071] This invention provides a multi-zone heating method, system, and storage medium. By setting up buffer water tanks and control strategies, it achieves unified heating of multiple zones of heating water and energy-saving operation after the heating reaches the target temperature of the target heating zone. This ensures user comfort, reduces system energy consumption, and achieves continuous heating.

[0072] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” or “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0073] For ease of understanding, the specific process of the embodiments of the present invention is described below. Please refer to [link / reference]. Figure 1 The first embodiment of the multi-zone heating method in this invention is applied to a heat pump heating system. The heat pump heating system includes a heat pump unit, a buffer water tank, and at least two heating devices, each of which is installed in a corresponding heating zone. The method includes the following steps:

[0074] 101. Upon receiving a heating command, determine the target heating area based on the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer tank.

[0075] It is understood that the executing entity of this invention can be a control device in a heat pump heating system, or it can be a terminal or a server; no specific limitation is made here. This embodiment of the invention will be described using a control device in a heat pump heating system as an example.

[0076] In this embodiment, users can trigger heating through the operation interface of the APP, PC, or even the control device in each heating area. After detecting the heating trigger, the target heating area that caused the trigger is determined, and then the heat pump unit in the system is started to heat the water in the buffer water tank.

[0077] In practical applications, the water in the buffer tank can be heated either by a heating device installed in the buffer tank or by a heat pump unit drawing water from the buffer tank into the heating pipes of the heat pump unit, absorbing heat from the environment to heat the water, and then returning it to the buffer tank.

[0078] Furthermore, while heating the water in the buffer tank, the temperature of the heated water in the buffer tank is monitored in real time by a temperature detection device. The device determines whether the water temperature in the buffer tank has reached the first temperature threshold of the target heating area. If it has, step 102 is executed; otherwise, heating of the water in the buffer tank continues. In practical applications, this first temperature threshold can be a pre-set minimum heating temperature or a target temperature within the target heating area.

[0079] 102. When the water temperature in the buffer tank reaches the first temperature threshold of the target heating area, control the water pump in the heating device in the target heating area to drive the water in the buffer tank to flow to the target heating area.

[0080] In this embodiment, the heating device includes a water pump, a temperature detection unit, radiators, and heat dissipation pipes. The heating device is driven by the water pump when pumping water into the buffer tank. The target heating area can be one or more. When there is only one target heating area, a first temperature threshold is set as the target temperature within that area. Upon reaching the target temperature, the heating device in the target heating area is activated to divert water from the buffer tank to the target heating area. The heating device can be a water pump located either within the target heating area or within the buffer tank.

[0081] In this embodiment, if there are more than two target heating areas, the first temperature threshold can be set to the lowest temperature among all target heating areas. When the water temperature is detected to reach the lowest temperature, the heating device in the corresponding target heating area is activated to divert water, and the water temperature in the buffer tank is continuously monitored. When the water temperature reaches the target temperature of the next target heating area, the corresponding heating device is activated to divert water. At the same time, in order to avoid the temperature of the target heating area corresponding to the lowest temperature being too high, it is also necessary to activate its corresponding heating device to adjust the temperature of the water flowing into the target heating area corresponding to the low temperature. After adjusting to the lowest temperature, the water is introduced into the target heating area.

[0082] Alternatively, after reaching the minimum temperature, heating can be provided to all target heating areas simultaneously. When the target temperature of the next target heating area is reached, the corresponding heating device can be activated to divert the water. In order to prevent the temperature of the target heating area corresponding to the minimum temperature from being too high, the corresponding heating device also needs to be activated to adjust the temperature of the water flowing into the target heating area corresponding to the low temperature. After adjusting to the minimum temperature, the water is introduced into the target heating area.

[0083] 103. Detect the ambient temperature in the target heating area and the water temperature in the buffer tank;

[0084] In this step, after the water in the buffer tank is diverted to the target heating area, the temperature in each target heating area and the water temperature in the buffer tank are monitored in real time. If either of them meets the condition, step 104 is executed; otherwise, the heating device and the buffer tank are kept heated.

[0085] In practical applications, the specific steps involve detecting whether the ambient temperature in the target heating area has reached the corresponding target temperature, and whether the water temperature in the buffer tank has reached the compensated target temperature. The compensated target temperature is greater than the target temperature by a preset difference, which is calculated using a formula for calculating the heat loss generated during the water diversion process. Different target heating areas correspond to different heat losses.

[0086] 104. When the ambient temperature and / or water temperature reach the target temperature of the target heating area, stop the heat pump unit from heating the water in the buffer tank, and continue to drive the water by controlling the operating parameters of the heating device in the target heating area according to the preset control strategy.

[0087] In this step, when the ambient temperature reaches the target temperature, the heat pump unit stops heating the water in the buffer tank. Of course, this stop can be understood as a short-term stop, or as stopping the operation at the rated frequency and switching to another frequency to continue operating. This can ensure that the water temperature in the buffer tank remains constant, while also reducing power consumption.

[0088] Furthermore, when the water temperature reaches the target temperature, the system detects whether the water temperature has reached the compensation target temperature based on the heat consumption of the water flow. If so, the heat pump unit is stopped, and the stopping process is the same as described above.

[0089] Furthermore, when the ambient temperature and water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating device in the target heating area are controlled according to the preset control strategy to continue driving the water.

[0090] In this embodiment, the control strategy is a setting table for the operating frequency of the heating device. By detecting the real-time temperature of the target heating area after reaching the target temperature, the corresponding operating frequency is selected from the setting table for operation.

[0091] In this embodiment of the invention, a buffer water tank is set up to control the inflow and outflow of water in the target heating area and to heat it, thereby achieving unified water supply. At the same time, by detecting the real-time temperature in the target heating area during the heating process, the operating parameters of the corresponding heating device are controlled by a preset control strategy. This method not only realizes the heating detection of zones and avoids excessively high or low temperatures, but also realizes the energy consumption control of the devices in each zone, so that the entire heat pump heating system can take into account both comfort and energy saving.

[0092] Please see Figure 2 The second embodiment of the multi-zone heating method in this invention is based on... Figure 4 The proposed heat pump heating system includes a heat pump unit, a buffer tank, heating devices, and heating zones. Taking two heating zones as an example, these are zone 1 (radiators) and zone 2 (underfloor heating). Based on the above system structure, this multi-zone heating method includes the following steps:

[0093] 201. Upon receiving a heating command, determine the target heating area based on the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer tank.

[0094] In this step, the heat pump unit, while running, uses refrigerant to obtain heat from the air and produces hot water. The hot water flows through pump 3 to a buffer tank, where it is heated by internal coils. The buffer tank is connected to the heat pump unit via inlet and outlet pipes, forming a heating circuit. The buffer tank is also connected to area 1 and area 2 via water pipes. In one embodiment, area 1 is a radiant heating area, and area 2 is a floor heating area. Radiant heating has higher radiant heat dissipation and thermal conductivity. Furthermore, because users' feet may contact the floor, the radiant heating area generally requires a higher temperature than the floor heating area.

[0095] 202. Check whether the water temperature in the buffer tank has reached the lowest target temperature in at least two target heating zones;

[0096] In this embodiment, a user in area 1 or area 2 sends a heating demand command to the heat pump unit via a wired controller, and the heat pump unit obtains the target ambient temperature T of area 1 or area 2. 目标 The heat pump unit heats the buffer tank, raising the temperature T of the hot water in the expansion tank. 目标 +△T 预设差值。 △T 预设差值 To compensate for temperature loss during the flow of hot water in the pipes when the hot water from the buffer tank is delivered to the radiators / underfloor heating systems in Zone 1 or Zone 2, the water in the buffer tank is then transported to the radiators / underfloor heating systems in Zone 1 or Zone 2 by water pump 1 or water pump 2, and reaches T... 目标。

[0097] 203. If the minimum target temperature is reached, the water pump in the heating device in the target heating area corresponding to the minimum target temperature will drive the water in the buffer tank to flow to the target heating area corresponding to the minimum target temperature.

[0098] In this embodiment, the heating device includes a water pump and radiators. Zone 1 is equipped with a water pump 1, radiators, and inlet / outlet pipes connecting a buffer water tank and the radiators, forming a radiator heating circuit. The water pump 1 drives hot water from the buffer water tank to flow to the radiators, heating the environment of Zone 1 through heat exchange between the radiators and the air. Furthermore, a blower is also installed on the radiators (i.e., Zone 1) to enhance heat exchange between the air and the radiators, resulting in a more uniform temperature rise within Zone 1.

[0099] Zone 2 is equipped with a water pump 2, a floor heating system, and inlet and outlet water pipes connecting the floor heating system and radiators, forming a floor heating circuit. The floor heating system consists of heating pipes installed under the floor slab, coiled within Zone 2. The heating pipes provide heat to the environment of Zone 2 through radiation. The radiator heating circuit is equipped with a water pump 2, which drives hot water from a buffer tank to flow to the heating pipes of the floor heating system, providing heat to the environment of Zone 2 through radiation.

[0100] 204. Check whether the water temperature in the buffer tank has reached the second lowest target temperature in at least two target heating zones;

[0101] In this step, the second lowest target temperature is greater than the lowest target temperature; wherein, both area 1 and area 2 are equipped with thermostats, which can be used to obtain the current indoor temperature of area 1 and area 2, and the user can adjust the target temperature of area 1 and area 2 according to the thermostats.

[0102] The heat pump unit is equipped with a wired controller. The thermostat and the wired controller communicate via RS485. Through RS485, the thermostats in each area are connected to the heat pump unit. In other embodiments, they can also communicate wirelessly to form a local area network to transmit temperature signals. For example, the thermostats and the heat pump unit form a network, and the heat pump unit can read the current temperature, target temperature, start / stop status information of the area.

[0103] In other embodiments, zone 1 or zone 2 does not have a temperature sensor directly connected to the zone from the heat pump unit, such as the zone water supply temperature, i.e., the current temperature of the zone; the zone water supply temperature setting value and the zone room temperature setting value are set on the wired controller of the heat pump unit.

[0104] 205. If the second lowest target temperature is reached, the water pump in the heating device in the target heating area corresponding to the lowest target temperature will be controlled to mix the water in the buffer tank with the return water and then flow to the target heating area corresponding to the lowest target temperature.

[0105] In this step, the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature is activated;

[0106] Determine the return water temperature in the buffer tank, and calculate the mixing ratio of inlet and return water in the three-way valve based on the second lowest target temperature, the lowest target temperature, and the return water temperature;

[0107] Based on the mixing ratio, the opening degree of each valve in the three-way valve is controlled by a PID algorithm, and the mixed water is driven by a water pump on the heating device to flow to the target heating area corresponding to the lowest target temperature.

[0108] In practical applications, the outlet water temperature (with the valve opening at the outlet end being 100%), the return water temperature and the return water valve opening at the return water end in Zone 2, and the inlet water temperature and the inlet water valve opening at the inlet end have the following relationships:

[0109] T 出水温度 =T 进水温度 *a+T 回水温度 *b, where a+b=1, a is the opening degree of the inlet valve, and b is the opening degree of the return valve;

[0110] For example, in one embodiment, region 2's T 出水温度 At 30℃, T 进水温度 At 35℃, T 回水温度 At 18℃, a is b is

[0111] The outlet water temperature can be adjusted by regulating the opening of the inlet valve and the outlet valve.

[0112] Furthermore, the opening degrees of the inlet and outlet valves are not necessarily related by a+b=1; the valve openings can be adjusted using a PID algorithm. Based on the above embodiment, when the outlet water temperature is too low, the opening degree of the inlet valve can be increased; for example, 'a' can be... When the outlet water temperature approaches the target outlet water temperature, reduce the opening of the inlet valve; for example, valve a can be adjusted back. By using PID control, when the outlet water temperature is low, the opening of the inlet valve is increased, which helps Zone 2 to quickly reach the target outlet water temperature. When the difference between the outlet water temperature and the target outlet water temperature is small, the opening of the inlet valve is decreased to prevent the outlet water temperature of Zone 2 from exceeding the target outlet water temperature, thereby improving the user experience.

[0113] 206. Control the water pumps in the heating devices in the remaining target heating areas to drive the water in the buffer tank to flow to the remaining target heating areas.

[0114] Following this step, the water temperature in the buffer tank is continuously monitored. When the water temperature reaches the next lower temperature, the water in the target heating areas at the lowest and second-lowest temperatures is mixed. The mixing ratio is calculated based on the above method. The remaining target heating areas are then monitored.

[0115] For example, if there are four target heating areas, the heating devices are controlled sequentially according to the target temperatures in the four target heating areas. After the first target temperature of the first target heating area is reached, heating is turned on in all four target heating areas. After the second target temperature of the second target heating area is reached, mixed heating is turned on in the first target heating area, and the other three are heated normally. After the third target temperature is reached, mixed heating is turned on in the first and second target heating areas, and normal heating is turned on in the third and fourth heating areas. After the fourth target temperature is reached, mixed heating is turned on in the first, second and third target heating areas, and normal heating is turned on in the fourth heating area.

[0116] 207. Detect the ambient temperature in the target heating area and the water temperature in the buffer tank;

[0117] 208. When the ambient temperature and / or water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating device in the target heating area are controlled according to the preset control strategy to continue driving the water.

[0118] In this step, controlling the operating parameters of the heating device in the target heating area according to a preset control strategy to continue driving the water includes:

[0119] Obtain the real-time temperature in the target heating area;

[0120] Calculate the temperature difference between the real-time temperature and the target temperature;

[0121] The operating frequency correction value corresponding to the temperature difference value is retrieved from the preset parameter control table, wherein the parameter control table is a correspondence table between the temperature difference value and the frequency;

[0122] The actual operating frequency of the water pump in the heating device is adjusted based on the operating frequency correction value to drive the water in the buffer tank.

[0123] In practical applications, the heating method for Zone 1 is: directly supplying T1 to the radiators. 目标水温 (50℃), waiting for the real-time indoor ambient temperature T1 实时环温 The water pump stops working when the target temperature is reached.

[0124] In this embodiment, to reduce pump energy consumption, a variable frequency pump can be used, and ΔT1 can be set. 预设差值 For example, 2℃, T1 实时环温 Reaching 28℃, the difference in user experience between two degrees is not significant; the water pump frequency can be reduced by setting a lower setting. T1 实时环温 When the temperature reaches 28℃, the pump frequency is 80% of the rated frequency, T1 实时环温 When the temperature reaches 29℃, the pump frequency is 60% of the rated frequency. (T1) 实时环温 Upon reaching 29.5℃, the water pump's frequency is 40% of its rated frequency. Furthermore, a correspondence table between temperature difference and frequency can be established. When the target temperature is reached, the main unit sends the actual operating frequency to the water pump. The actual operating frequency of the variable frequency pump = rated variable frequency * operating frequency correction value. Specific frequency correction parameters are detailed in Table 1 below.

[0125]

[0126] Table 1

[0127] △t=t 目标环温 -t 实际环温 (Ambient temperature here refers to indoor temperature)

[0128] Heating method for Zone 2: Hot water from the buffer tank is supplied to Zone 2 through the inlet pipe. The three-way valve is opened, and the temperature of the outlet water of the three-way valve is adjusted to reach T2 by regulating the opening degree of the inlet and outlet valves of the three-way valve. 目标水温 (33℃). This can be understood as the water temperature returning through the three-way valve being lower, which is low-temperature water. By controlling the temperature of the fluid after the high-temperature water enters and mixes with the low-temperature fluid, the temperature of the mixed fluid is made to be the preset water temperature of the heating device connected to the mixing zone.

[0129] In this embodiment of the invention, after determining the target heating area based on a heating command, the heat pump unit is controlled to exchange heat sources in the environment to heat the water in the buffer tank. When the water reaches a first temperature threshold, the heating devices in the target heating area are controlled to drive the water in the buffer tank for heating. During the heating process, the ambient temperature in the target heating area and the water temperature in the buffer tank are monitored in real time. When the ambient temperature and / or the water temperature reaches the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating devices in the target heating area are controlled according to a preset control strategy to continue driving the water. By setting up a buffer tank to control the inflow and outflow of water and heating in the target heating area, unified water supply is achieved. At the same time, by monitoring the real-time temperature in the target heating area during the heating process and using a preset control strategy to control the operating parameters of the corresponding heating devices, this method not only achieves zoned heating detection, avoiding excessively high or low temperatures, but also achieves energy consumption control of devices in each zone, enabling the entire heat pump heating system to balance comfort and energy efficiency.

[0130] Please see Figure 3 The third embodiment of the multi-zone heating method in this invention includes:

[0131] 301. Upon receiving a heating command, determine the target heating area based on the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer tank.

[0132] 302. When the water temperature in the buffer tank reaches the first temperature threshold of the target heating area, control the water pump in the heating device in the target heating area to drive the water in the buffer tank to flow to the target heating area.

[0133] In this step, if the number of target heating areas is at least two, it is detected whether the water temperature in the buffer tank reaches the lowest target temperature among the at least two target heating areas;

[0134] If the minimum target temperature is reached, the heating devices in the at least two target heating areas are controlled to drive the water in the buffer tank to flow to the corresponding target heating areas.

[0135] Detect whether the water temperature in the buffer tank reaches the second lowest target temperature in at least two target heating zones, wherein the second lowest target temperature is greater than the lowest target temperature;

[0136] If the second lowest target temperature is reached, the heating device in the target heating area corresponding to the lowest target temperature is controlled to mix the water in the buffer tank with the return water and then flow to the target heating area corresponding to the lowest target temperature. The heating device in the remaining target heating areas is also controlled to drive the water in the buffer tank to flow to the remaining target heating areas.

[0137] Wherein, the heating device controlling the target heating area corresponding to the lowest target temperature mixes the water in the buffer tank with the return water and then flows it to the target heating area corresponding to the lowest target temperature, including:

[0138] Start the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature;

[0139] Determine the return water temperature in the buffer tank, and calculate the mixing ratio of inlet and return water in the three-way valve based on the second lowest target temperature, the lowest target temperature, and the return water temperature;

[0140] Based on the mixing ratio, the opening degree of each valve in the three-way valve is controlled by a PID algorithm, and the mixed water is driven by a water pump on the heating device to flow to the target heating area corresponding to the lowest target temperature.

[0141] 303. Detect the ambient temperature in the target heating area and the water temperature in the buffer tank;

[0142] 304. When the ambient temperature and / or water temperature reach the target temperature of the target heating area, stop the heat pump unit from heating the water in the buffer tank, and control the working parameters of the heating device in the target heating area to continue driving the water according to the preset control strategy.

[0143] In this step, the real-time temperature in the target heating area is obtained; the temperature difference between the real-time temperature and the target temperature is calculated; the operating frequency correction value corresponding to the temperature difference is queried from a preset parameter control table, wherein the parameter control table is a correspondence table between temperature difference and frequency; and the actual operating frequency of the water pump in the heating device is adjusted based on the operating frequency correction value to drive the water in the buffer tank.

[0144] In this embodiment, when heating multiple target heating areas separately, it is divided into individual heating mode and zone heating mode. The following is based on... Figure 4 The following explanation will be based on two target heating areas.

[0145] 1) Individual heating mode, Zone 1 heating mode or Zone 2 heating mode

[0146] Users in Zone 1 or Zone 2 send heating demand commands to the heat pump unit via wired controllers. The heat pump unit then obtains the target ambient temperature T for Zone 1 or Zone 2. 目标 The heat pump unit heats the buffer tank, raising the temperature T of the hot water in the expansion tank. 目标 +△T 预设差值。 △T 预设差值To compensate for temperature loss during the flow of hot water in the pipes when the hot water from the buffer tank is delivered to the radiators / underfloor heating systems in Zone 1 or Zone 2, the water in the buffer tank is then transported to the radiators / underfloor heating systems in Zone 1 or Zone 2 by water pump 1 or water pump 2, and reaches T... 目标。

[0147] Furthermore, when the hot water temperature in the buffer tank reaches T... 目标 +△T 预设差值 When the heat pump unit stops working, it prevents the heat pump unit from continuously heating the hot water in the heat buffer tank, thus avoiding the actual heating temperature in Zone 1 exceeding the user-set T. 目标 The user experience is poor. On the other hand, when the hot water temperature in the buffer tank reaches T... 目标 +△T 预设差值 When the heat pump unit stops working, it saves energy consumption.

[0148] The buffer water tank prevents the heat pump unit from directly supplying heat to Zone 1 or Zone 2, when the actual heating temperature does not reach T. 目标 When this happens, the heat pump unit will start frequently, shortening its lifespan and increasing energy consumption.

[0149] Furthermore, as mentioned above, the heating temperature of Zone 1 is higher than that of Zone 2. Therefore, if Zone 1 is being heated, when Zone 1 has reached the target temperature and the heat pump unit has stopped, the water in the buffer tank can still be used to heat Zone 2 if Zone 2 also needs heating.

[0150] 2) Zone / Multi-zone heating mode: Zone 1 and Zone 2 heating

[0151] In the following scheme, T1 目标 Taking a higher target temperature as an example, we will describe a zone control scheme.

[0152] Users in Zone 1 and Zone 2 send heating demand commands to the heat pump unit via wired controllers. The heat pump unit then obtains the target ambient temperature T1 for either Zone 1 or Zone 2. 目标环温 (30℃) and T2 目标环温 (25℃), and determine the target influent temperature T1 to achieve the target ambient temperature. 目标水温 (50℃) and T2 目标水温 (33℃), determine the highest inlet water temperature T1 目标水温 (50℃)+△T 缓冲水箱预设差值 (2℃), which is the water tank temperature of 52℃.

[0153] After receiving the heating demand command and confirming the target maximum temperature, the heat pump unit heats the buffer water tank. When the temperature of the buffer water tank reaches T2... 目标水温At 33℃, water pump 2 can be started simultaneously to heat area 2, avoiding the need to wait for the buffer tank temperature to reach 52℃ before heating areas 1 and 2. While heating the buffer tank, heating area 2 (the area with lower temperature requirements) is also provided, reducing the user's waiting time for heating and improving the user experience.

[0154] Furthermore, in other embodiments, to avoid the buffer tank heating up too slowly when heating zone 2 simultaneously, resulting in an excessively long waiting time for heating in zone 1, users can choose to prioritize heating the buffer tank to 52°C. Once the target temperature is reached, heating can then be provided to both zones 1 and 2 simultaneously.

[0155] Heating method for Zone 1: Direct supply of T1 heat to radiators 目标水温 (50℃), waiting for the real-time indoor ambient temperature T1 实时环温 The water pump stops working when the target temperature is reached.

[0156] 306. Detect the inlet water temperature in the target heating area and compare the inlet water temperature with the preset limit temperature value;

[0157] 307. If the inlet water temperature is not lower than the limit temperature value and continues for a preset time, the heating device in the target heating area will stop driving the water and generate a prompt message to notify the heat pump heating system to be maintained.

[0158] In the above embodiment, to prevent the underfloor heating temperature from becoming too high and causing damage to the pipes or base plate, when the inlet water temperature of Zone 2 exceeds a certain temperature (e.g., 75°C) and reaches a preset time period (e.g., 5 minutes), the three-way valve and water pump 2 are shut off, the heating supply to Zone 2 is stopped, and the user is reminded to check if the unit has malfunctioned, or if the outlet water temperature can no longer be adjusted by the return water temperature, and Zone 2 needs to be allowed to cool down naturally to avoid the heating temperature of Zone 2 becoming too high. Because the heat dissipation area of ​​underfloor heating is large, if a high water temperature enters, it can easily cause the temperature of Zone 2 to rise beyond the preset temperature, making people in Zone 2 feel stuffy.

[0159] Furthermore, the heating mode of Zone 1, Zone 2, or both Zone 1 and Zone 2 is determined when the following conditions are met.

[0160] When the outdoor temperature is higher than 22℃+3℃, hot water will no longer be supplied to Zone 1 and Zone 2 in heating mode.

[0161] When the ambient temperature is below 22℃+1, the demand from Region 1 and Region 2 can be used to determine the temperature.

[0162] Similarly, to reduce water pump energy consumption, a variable frequency pump can be used, and a preset difference value ΔT can be set to adjust the pump frequency according to the temperature difference. The specific method is the same as the method for region 1, and will not be described again here.

[0163] In this embodiment, after controlling the operating parameters of the heating device in the target heating area according to the preset control strategy to continue driving the water, the method further includes:

[0164] Obtain the location information of the target heating area, and determine the temperature monitoring time range based on the location information;

[0165] Within the specified temperature monitoring time range, monitor the actual ambient temperature of the target heating area;

[0166] If the actual ambient temperature does not reach the target temperature, then output heating fault information for the target heating area.

[0167] In practical applications, when Zone 1 and Zone 2 are on different floors, the outlet water temperature is often constrained by factors such as pipe design, resulting in heat loss. The water that loses heat through the pipes often fails to reach the target outlet water temperature. Therefore, a time-based judgment logic is added to the existing zoned heating system.

[0168] Step 1: Obtain floor information for Zone 1 and Zone 2;

[0169] The host can import building information, including building floor information, through the user, or via an app or server, and obtain the floor difference.

[0170] Step 2: Obtain the actual ambient temperature within the preset time range;

[0171] If it is determined that they are on different floors, continue to obtain the real-time ambient temperature of target area 1 and area 2 within the preset time range, and obtain the target ambient temperature reached by area 1 and area 2 within the first preset time range. If the real-time ambient temperature is lower than the target ambient temperature, it is determined that heat loss has occurred, and the difference between the real-time temperature and the target ambient temperature is obtained.

[0172] Step 3: Increase the unit's heating temperature and increase the temperature of the buffer water tank;

[0173] Obtain the target ambient temperature and the difference between the target and actual ambient temperatures, and increase the unit's heating temperature to T based on the original target heating temperature. 实时温度和目标环境温度的差值 +△T 预设差值。 △T 预设差值 The preset values ​​vary depending on the floor. See Table 2 below for details.

[0174] 1 5℃ 2 8℃ 3 10℃

[0175] Table 2

[0176] Different floor levels result in varying heat loss during hot water delivery; therefore, different values ​​(ΔT) are set based on these floor differences. 预设差值 It takes into account temperature differences caused by floor variations. It quickly meets users' temperature needs, avoiding situations where the unit's heating temperature is too low, resulting in a slow temperature rise.

[0177] Furthermore, to avoid maintaining the heating temperature at a high preset temperature, which would lead to excessively high heating and unnecessary energy consumption, the outlet water temperature is continuously measured within the second preset time period. When the outlet water temperature approaches the preset temperature, ΔT is reduced according to the settings in Table 3. 预设差值 This lowers the unit's heating temperature and reduces energy consumption. In other embodiments, the frequency of the water pumps can also be adjusted, such as reducing the frequency of water pump 1 or water pump 2, to further reduce the inflow of water to the area, thereby adjusting the outlet water temperature of the area.

[0178] 5 3℃ 3 2℃ 1 1℃

[0179] Table 3

[0180] By considering T 实时温度和目标环境温度的差值 In addition to the floor difference, the outlet water temperature of the heat pump unit is further determined to reach the preset temperature required by the user, so as to avoid a poor user experience when the user uses the heating equipment.

[0181] In summary, by implementing the methods provided above, the following effects were achieved:

[0182] 1) By setting up a buffer water tank, the heating area is prevented from directly obtaining heat from the buffer water tank, thus avoiding repeated starts of the heat pump unit and extending its service life.

[0183] 2) By setting a target temperature difference, the pump frequency can be reduced, further reducing pump energy consumption and improving unit energy efficiency.

[0184] 3) By adjusting the valve opening of the three-way valve, the outlet water temperature can be precisely adjusted, improving the user experience.

[0185] Furthermore, to enhance the utilization rate of the buffer water tank, it can also be connected to domestic hot water, such as bathroom water, so as to make full use of the residual heat of the buffer water tank.

[0186] The multi-zone heating method in the embodiments of the present invention has been described above. The heat pump heating system in the embodiments of the present invention is described below. Please refer to [link / reference]. Figure 5One embodiment of the heat pump heating system in this invention includes: a heat pump unit 501, a buffer water tank 502, at least two heating devices 503, and a control device 504. Each heating device 503 is installed in a corresponding heating area. Each heating device includes at least a water pump and a heat dissipation device. The control device 504 includes:

[0187] Heating module 5041 is used to determine the target heating area based on the heating command after receiving the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer water tank.

[0188] The drive module 5042 is used to control the water pump in the heating device in the target heating area to drive the water in the buffer water tank to flow to the target heating area when the water temperature in the buffer water tank reaches the first temperature threshold of the target heating area.

[0189] Detection module 5043 is used to detect the ambient temperature in the target heating area and the water temperature in the buffer water tank;

[0190] The control module 5044 is used to stop the heat pump unit from heating the water in the buffer tank when the ambient temperature and / or the water temperature reaches the target temperature of the target heating area, and to control the operating parameters of the heating device in the target heating area to continue driving the water according to a preset control strategy.

[0191] In this embodiment of the invention, a buffer water tank is set up to control the inflow and outflow of water in the target heating area and to heat it, thereby achieving unified water supply. At the same time, by detecting the real-time temperature in the target heating area during the heating process, the operating parameters of the corresponding heating device are controlled by a preset control strategy. This method not only realizes the heating detection of zones and avoids excessively high or low temperatures, but also realizes the energy consumption control of the devices in each zone, so that the entire heat pump heating system can take into account both comfort and energy saving.

[0192] Please see Figure 6 Another embodiment of the heat pump heating system in this invention includes: a heat pump unit 501, a buffer water tank 502, at least two heating devices 503, and a control device 504. Each heating device 503 is installed in a corresponding heating area. Each heating device includes at least a water pump and a heat dissipation device. The control device 504 includes:

[0193] Heating module 5041 is used to determine the target heating area based on the heating command after receiving the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer water tank.

[0194] The drive module 5042 is used to control the water pump in the heating device in the target heating area to drive the water in the buffer water tank to flow to the target heating area when the water temperature in the buffer water tank reaches the first temperature threshold of the target heating area.

[0195] Detection module 5043 is used to detect the ambient temperature in the target heating area and the water temperature in the buffer water tank;

[0196] The control module 5044 is used to stop the heat pump unit from heating the water in the buffer tank when the ambient temperature and / or the water temperature reaches the target temperature of the target heating area, and to control the operating parameters of the heating device in the target heating area to continue driving the water according to a preset control strategy.

[0197] In this embodiment, the driving module 5042 includes:

[0198] The first detection unit 50421 is used to detect whether the water temperature in the buffer tank reaches the lowest target temperature in at least two target heating areas when the number of target heating areas is at least two.

[0199] The first drive unit 50422 is used to control the water pump in the heating device in the target heating area corresponding to the minimum target temperature to drive the water in the buffer water tank to flow to the target heating area corresponding to the minimum target temperature when the minimum target temperature is detected to be reached.

[0200] The second detection unit 50423 is used to detect whether the water temperature in the buffer tank reaches the second lowest target temperature in at least two target heating areas, wherein the second lowest target temperature is greater than the lowest target temperature.

[0201] The second drive unit 50424 is used to, upon detecting that the second lowest target temperature has been reached, control the water pump in the heating device in the target heating area corresponding to the lowest target temperature to mix the water in the buffer water tank with the return water and then flow it to the target heating area corresponding to the lowest target temperature, and control the water pump in the heating device in the remaining target heating areas to drive the water in the buffer water tank to flow to the remaining target heating areas.

[0202] In this embodiment, the first driving unit 50422 is further configured to: control the heating devices in the at least two target heating areas to drive the water in the buffer tank to flow to the corresponding target heating areas respectively.

[0203] In this embodiment, the second driving unit 50424 is specifically used for:

[0204] Start the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature;

[0205] Determine the return water temperature in the buffer tank, and calculate the mixing ratio of inlet and return water in the three-way valve based on the second lowest target temperature, the lowest target temperature, and the return water temperature;

[0206] Based on the mixing ratio, the opening degree of each valve in the three-way valve is controlled by a PID algorithm, and the mixed water is driven by a water pump on the heating device to flow to the target heating area corresponding to the lowest target temperature.

[0207] In this embodiment, the control module 5044 includes:

[0208] Acquisition unit 50441 is used to acquire the real-time temperature of the target heating area;

[0209] Calculation unit 50442 is used to calculate the temperature difference between the real-time temperature and the target temperature;

[0210] The query unit 50443 is used to query the operating frequency correction value corresponding to the temperature difference value from a preset parameter control table, wherein the parameter control table is a correspondence table between temperature difference value and frequency.

[0211] The adjustment unit 50444 is used to adjust the actual operating frequency of the water pump in the heating device based on the operating frequency correction value, so as to drive the water in the buffer tank.

[0212] In this embodiment, the heat pump heating system further includes a first monitoring module 5045, which is specifically used for:

[0213] The inlet water temperature in the target heating area is detected, and the inlet water temperature is compared with a preset limit temperature value;

[0214] If the inlet water temperature is not less than the limit temperature value and continues for a preset time, the heating device in the target heating area will stop driving the water and a prompt message will be generated to notify the heat pump heating system to be maintained.

[0215] In this embodiment, the heat pump heating system further includes a second monitoring module 5046, which is specifically used for:

[0216] Obtain the location information of the target heating area, and determine the temperature monitoring time range based on the location information;

[0217] Within the specified temperature monitoring time range, monitor the actual ambient temperature of the target heating area;

[0218] If the actual ambient temperature does not reach the target temperature, then output heating fault information for the target heating area.

[0219] In this embodiment of the invention, after determining the target heating area based on a heating command, the heat pump unit is controlled to exchange heat sources in the environment to heat the water in the buffer tank. When the water reaches a first temperature threshold, the heating devices in the target heating area are controlled to drive the water in the buffer tank for heating. During the heating process, the ambient temperature in the target heating area and the water temperature in the buffer tank are monitored in real time. When the ambient temperature and / or the water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank, and the operating parameters of the heating devices in the target heating area are controlled according to a preset control strategy to continue driving the water. This method not only achieves zoned heating detection, avoiding excessively high or low temperatures, but also achieves energy consumption control of the devices in each zone, enabling the entire heat pump heating system to balance comfort and energy efficiency.

[0220] above Figure 5 and Figure 6 The heat pump heating system in this embodiment of the invention will be described in detail from the perspective of modular functional entities. The heat pump heating system in this embodiment of the invention will be described in detail from the perspective of hardware processing.

[0221] Figure 7 This is a schematic diagram of a heat pump heating system 700 provided in an embodiment of the present invention. The heat pump heating system 700 can vary significantly due to different configurations or performance characteristics. It may include one or more central processing units (CPUs) 710 (e.g., one or more processors) and a memory 720, and one or more storage media 730 (e.g., one or more mass storage devices) for storing application programs 733 or data 732. The memory 720 and storage media 730 can be temporary or persistent storage. The program stored in the storage media 730 may include one or more modules (not shown in the diagram), each module may include a series of instruction operations on the express sorting equipment 700. Furthermore, the processor 710 may be configured to communicate with the storage media 730 and execute the series of instruction operations in the storage media 730 on the heat pump heating system 700.

[0222] The heat pump heating system 700 may also include one or more power supplies 740, one or more wired or wireless network interfaces 750, one or more input / output interfaces 760, and / or one or more operating systems 731, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD, etc. Those skilled in the art will understand that... Figure 7The heat pump heating system structure shown does not constitute a limitation on the heat pump heating system, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0223] The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, wherein the computer-readable storage medium stores instructions that, when executed on a computer, cause the computer to perform the steps of the multi-zone heating method.

[0224] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system, device, or unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0225] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0226] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-zone heating method applied to a heat pump heating system, characterized in that, The heat pump heating system includes a heat pump unit, a buffer water tank, and at least two heating devices, each installed in a corresponding heating area. Each heating device includes at least a water pump and a heat dissipation device. The multi-zone heating method includes: Upon receiving a heating command, the target heating area is determined based on the heating command, and the heat pump unit is controlled to obtain heat sources in the environment to heat the water in the buffer tank. If there are at least two target heating areas, the system detects whether the water temperature in the buffer tank reaches the lowest target temperature among the at least two target heating areas. If the lowest target temperature is reached, the system controls the water pump in the heating device in the target heating area corresponding to the lowest target temperature to drive the water in the buffer tank to flow to the target heating area corresponding to the lowest target temperature. The system also detects whether the water temperature in the buffer tank reaches the second lowest target temperature among the at least two target heating areas, where the second lowest target temperature is greater than the lowest target temperature. If the second lowest target temperature is reached, the system activates the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature. The system determines the return water temperature in the buffer tank and, based on the second lowest target temperature, the lowest target temperature, and the return water temperature, uses a PID algorithm to control the opening of each valve in the three-way valve to mix the water in the buffer tank with the return water and then flow to the target heating area corresponding to the lowest target temperature. Additionally, the system controls the water pump in the heating device in the remaining target heating areas to drive the water in the buffer tank to flow to the remaining target heating areas. Detect the ambient temperature in the target heating area and the water temperature in the buffer tank; When the ambient temperature and / or the water temperature reach the target temperature of the target heating area, the heat pump unit stops heating the water in the buffer tank and obtains the real-time temperature in the target heating area; the temperature difference between the real-time temperature and the target temperature is calculated; the operating frequency correction value corresponding to the temperature difference is retrieved from a preset parameter control table, wherein the parameter control table is a correspondence table between temperature difference and frequency; the actual operating frequency of the water pump in the heating device is adjusted based on the operating frequency correction value to drive the water in the buffer tank; Obtain the location information of the target heating area and determine the temperature monitoring time range based on the location information; within the temperature monitoring time range, monitor the actual ambient temperature of the target heating area; if the actual ambient temperature does not reach the target temperature, output heating fault information of the target heating area.

2. The multi-zone heating method according to claim 1, characterized in that, After detecting that the water temperature in the buffer tank reaches the lowest target temperature in at least two target heating zones, the method further includes: The water pumps in the heating devices of the at least two target heating areas are controlled to drive the water in the buffer tank to flow to the corresponding target heating areas.

3. The multi-zone heating method according to claim 1 or 2, characterized in that, After adjusting the actual operating frequency of the water pump in the heating device based on the operating frequency correction value to drive the water in the buffer tank, the process further includes: The inlet water temperature in the target heating area is detected, and the inlet water temperature is compared with a preset limit temperature value; If the inlet water temperature is not less than the limit temperature value and continues for a preset time, the heating device in the target heating area will stop driving the water and a prompt message will be generated to notify the heat pump heating system to be maintained.

4. A heat pump heating system, characterized in that, The heat pump heating system includes: a heat pump unit, a buffer water tank, at least two heating devices, and a control device. Each heating device is installed in a corresponding heating area. Each heating device includes at least a water pump and a heat dissipation device. The control device includes: The heating module is used to determine the target heating area based on the heating command after receiving the heating command, and control the heat pump unit to obtain heat sources in the environment to heat the water in the buffer water tank. The drive module is configured to: detect whether the water temperature in the buffer tank reaches the lowest target temperature among the at least two target heating areas when the number of target heating areas is at least two; if the lowest target temperature is reached, control the water pump in the heating device in the target heating area corresponding to the lowest target temperature to drive the water in the buffer tank to flow to the target heating area corresponding to the lowest target temperature; detect whether the water temperature in the buffer tank reaches the second lowest target temperature among the at least two target heating areas, wherein the second lowest target temperature is greater than the lowest target temperature; if the second lowest target temperature is reached, activate the three-way valve on the heating device in the target heating area corresponding to the lowest target temperature; determine the return water temperature in the buffer tank, and based on the second lowest target temperature, the lowest target temperature, and the return water temperature, use a PID algorithm to control the opening degree of each valve in the three-way valve to mix the water in the buffer tank with the return water and flow to the target heating area corresponding to the lowest target temperature; and control the water pump in the heating device in the remaining target heating areas to drive the water in the buffer tank to flow to the remaining target heating areas. The detection module is used to detect the ambient temperature in the target heating area and the water temperature in the buffer tank; The control module is configured to: stop the heat pump unit from heating the water in the buffer tank when the ambient temperature and / or the water temperature reaches the target temperature of the target heating area; obtain the real-time temperature in the target heating area; calculate the temperature difference between the real-time temperature and the target temperature; query the operating frequency correction value corresponding to the temperature difference from a preset parameter control table, wherein the parameter control table is a correspondence table between temperature difference and frequency; and adjust the actual operating frequency of the water pump in the heating device based on the operating frequency correction value to drive the water in the buffer tank. The second monitoring module is used to acquire the location information of the target heating area and determine the temperature monitoring time range based on the location information; within the temperature monitoring time range, it monitors the actual ambient temperature of the target heating area; if the actual ambient temperature does not reach the target temperature, it outputs heating fault information of the target heating area.

5. A heat pump heating system, characterized in that, The heat pump heating system includes: a memory and at least one processor, wherein the memory stores instructions, and the memory and the at least one processor are interconnected via a line; The at least one processor invokes the instructions in the memory to cause the heat pump heating system to perform the steps of the multi-zone heating method as described in any one of claims 1-3.

6. A computer-readable storage medium storing a computer program thereon, characterized in that, When the computer program is executed by the processor, it implements the various steps of the multi-zone heating method as described in any one of claims 1-3.

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