Control method of an environmental conditioning system, environmental conditioning system and storage medium

Abstract

This application discloses a control method, an environmental control system, and a storage medium for an environmental control system, relating to the field of electrical technology. The environmental control system includes a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes indoor terminal equipment. The heat pump device is heat-exchange connected to a first heat exchange section in the refrigerant circulation loop, and the gas device is heat-exchange connected to the refrigerant circulation loop. The method includes: obtaining a first refrigerant temperature of the first heat exchange section; determining a first target refrigerant temperature corresponding to the gas device based on the first refrigerant temperature and a system target refrigerant temperature of the environmental control system; and controlling the environmental control system to adjust the heating capacity of the gas device based on the first target refrigerant temperature. This application aims to meet heating demands, improve the reliability of the heat pump during heating operation in the system, and save overall system energy costs.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to control methods for environmental control systems, environmental control systems, and storage media. Background Technology

[0002] In the process of regulating the indoor environment, many environmental control systems use a combination of heat pumps and gas appliances as dual heat sources to provide heating at the indoor terminals in refrigerant flow paths such as water circuits. Each has its own advantages and disadvantages as a heat source. Gas appliances heat up much faster than heat pumps, but the gas cost for gas appliances is higher than the electricity cost for heat pumps.

[0003] Currently, in systems that combine gas-fired equipment and heat pump equipment as heat sources, the output of the gas-fired equipment is too small to meet the heating demand, while the output is too large, which causes the water temperature in the flow path to rise too quickly, resulting in reliability issues for the heat pump and excessively high system energy costs. Summary of the Invention

[0004] The main objective of this application is to provide a control method, an environmental control system, and a storage medium for an environmental control system, which aims to meet heating demand, improve the reliability of heat pump operation in the system, and save overall system energy costs.

[0005] To achieve the above objectives, this application proposes a control method for an environmental control system. The environmental control system includes a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes indoor terminal equipment. The heat pump device is heat-exchange connected to a first heat exchange section in the refrigerant circulation loop, and the gas device is heat-exchange connected to the refrigerant circulation loop. The method includes:

[0006] Obtain the temperature of the first refrigerant in the first heat exchange section;

[0007] The first target refrigerant temperature corresponding to the gas equipment is determined based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system.

[0008] The environmental control system adjusts the heat supply of the gas equipment based on the first target refrigerant temperature.

[0009] In one embodiment, the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system includes:

[0010] The reference target refrigerant temperature required for the supplemental heating of the gas equipment is determined based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system.

[0011] The first target refrigerant temperature is obtained by reducing the reference target refrigerant temperature according to the target correction value.

[0012] In one embodiment, the system target refrigerant temperature is a target value of the refrigerant temperature at a target location on the refrigerant circulation loop. After the step of controlling the environmental conditioning system to adjust the heating capacity of the gas equipment based on the first target refrigerant temperature, the system further includes:

[0013] Adjust the first target refrigerant temperature according to the first actual refrigerant temperature at the target location to obtain the second target refrigerant temperature corresponding to the gas equipment;

[0014] The environmental control system adjusts the heat exchange capacity of the gas equipment based on the second target refrigerant temperature.

[0015] In one embodiment, the step of adjusting the first target refrigerant temperature based on the first actual refrigerant temperature at the target location to obtain the second target refrigerant temperature corresponding to the gas equipment includes:

[0016] The first target refrigerant temperature is adjusted based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature and / or the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment, thereby obtaining the second target refrigerant temperature corresponding to the gas equipment.

[0017] In one embodiment, the step of adjusting the first target refrigerant temperature based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature to obtain the second target refrigerant temperature corresponding to the gas equipment includes:

[0018] When the first temperature difference is less than the first preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature.

[0019] If the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is determined to be the second target refrigerant temperature.

[0020] When the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is reduced to obtain the second target refrigerant temperature.

[0021] Wherein, the first preset temperature difference is less than the second preset temperature difference.

[0022] In one embodiment, the step of adjusting the first target refrigerant temperature based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature to obtain the second target refrigerant temperature corresponding to the gas equipment includes:

[0023] If the first temperature difference is less than the first preset temperature difference, the first target refrigerant temperature is corrected according to the first correction coefficient to obtain the second target refrigerant temperature;

[0024] When the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is corrected according to the second correction coefficient to obtain the second target refrigerant temperature.

[0025] When the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is corrected according to the third correction coefficient to obtain the second target refrigerant temperature.

[0026] Wherein, the first preset temperature difference is less than the second preset temperature difference, the second target refrigerant temperature corresponding to the first correction coefficient is greater than the second target refrigerant temperature corresponding to the second correction coefficient, and the second target refrigerant temperature corresponding to the second correction coefficient is greater than the second target refrigerant temperature corresponding to the third correction coefficient.

[0027] In one embodiment, the step of adjusting the first target refrigerant temperature based on a second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment, to obtain the second target refrigerant temperature corresponding to the gas equipment, includes:

[0028] When the second temperature difference is less than the third preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature.

[0029] If the second temperature difference is greater than or equal to the third preset temperature difference and less than the fourth preset temperature difference, the first target refrigerant temperature is determined to be the second target refrigerant temperature.

[0030] When the second temperature difference is greater than or equal to the fourth preset temperature difference, the first target refrigerant temperature is reduced to obtain the second target refrigerant temperature.

[0031] The third preset temperature difference is less than the fourth preset temperature difference.

[0032] In one embodiment, the step of adjusting the first target refrigerant temperature based on a first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature, and a second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature of the target location at the previous moment, to obtain the second target refrigerant temperature corresponding to the gas equipment includes:

[0033] If the first temperature difference is less than the first preset temperature difference, or if the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, or if the first temperature difference is greater than or equal to the second preset temperature difference, the step of adjusting the first target refrigerant temperature based on the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature of the target position at the previous moment, and obtaining the second target refrigerant temperature corresponding to the gas equipment, is executed.

[0034] In one embodiment, before the step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a first temperature adjustment value based on the first temperature difference value;

[0035] The step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: increasing the first target refrigerant temperature according to the first temperature adjustment value to obtain the second target refrigerant temperature;

[0036] And / or, before the step of reducing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a second temperature adjustment value based on the first temperature difference value;

[0037] The step of reducing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: reducing the first target refrigerant temperature according to the second temperature adjustment value to obtain the second target refrigerant temperature.

[0038] In one embodiment, after determining the reference target refrigerant temperature required for supplemental heating of the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system, the method further includes:

[0039] When the heat pump equipment meets the defrosting conditions, the environmental control system is controlled to adjust the heat supply of the gas equipment according to the benchmark target refrigerant temperature.

[0040] If the heat pump equipment does not meet the defrosting conditions, the step of reducing the reference target refrigerant temperature according to the preset correction value to obtain the first target refrigerant temperature is performed.

[0041] In one embodiment, the system target refrigerant temperature is the target value of the refrigerant temperature at a target location in the refrigerant circulation loop. Before the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system, the method further includes:

[0042] If the actual refrigerant temperature at the target location is less than or equal to the target refrigerant temperature of the system, the environmental control system is controlled to start the gas equipment for heating.

[0043] In one embodiment, the step of controlling the environmental conditioning system to start the gas-fired equipment for heating when the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature includes:

[0044] When the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature, and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to a sixth preset temperature difference, the environmental control system is controlled to start the gas equipment for heating; or,

[0045] When the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to the seventh preset temperature difference, the environmental control system is controlled to start the heating of the gas equipment.

[0046] In one embodiment, before the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system, the method further includes:

[0047] When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the step of controlling the environmental conditioning system to start the gas equipment to supply heat is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to the sixth preset temperature difference.

[0048] When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is greater than a fifth preset temperature difference, the step of controlling the environmental conditioning system to start the heating of the gas equipment is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to a seventh preset temperature difference.

[0049] In one embodiment, before the step of controlling the environmental conditioning system to start the gas equipment for heating when the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature, the method further includes:

[0050] The environmental control system adjusts the heat supply of the heat pump equipment based on the fourth target refrigerant temperature of the heat pump equipment.

[0051] In one embodiment, the step of controlling the environmental conditioning system to adjust the heat supply of the heat pump device according to the fourth target refrigerant temperature of the heat pump device includes:

[0052] When the temperature difference between the actual refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the environmental control system is controlled to operate in order to increase the heat supply of the heat pump equipment.

[0053] If the temperature difference between the actual refrigerant temperature in the first heat exchange section and the fourth target refrigerant temperature is greater than the fifth preset temperature difference, the environmental control system is controlled to reduce the heat supply of the heat pump equipment.

[0054] In addition, to achieve the above objectives, this application also proposes an environmental control system, which includes a control device, a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes an indoor terminal device. The heat pump device is heat-exchange connected to a first heat exchange section in the refrigerant circulation loop, and the gas device is heat-exchange connected to the refrigerant circulation loop.

[0055] The heat pump equipment, the gas equipment, and the refrigerant circulation loop are all connected to the control device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer program is configured to implement the steps of the control method for the environmental conditioning system as described above.

[0056] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the control method of the environmental control system as described above.

[0057] One or more technical solutions proposed in this application have at least the following technical effects: the first target refrigerant temperature for controlling the heating capacity of the gas equipment is not an independently set temperature, but is determined by combining the refrigerant temperature of the first heat exchange section of the heat exchange connection of the heat pump equipment and the system target refrigerant temperature. This helps to ensure that the heating capacity of the gas equipment meets the system's heating demand without being too large, and avoids the refrigerant temperature of the first heat exchange section being too high. This effectively ensures the stability of the heat pump equipment during heating operation, and helps to fully utilize the heating performance of the heat pump equipment to reduce gas costs, thereby meeting the heating demand and improving the reliability of the heat pump during heating operation in the system and saving the overall energy cost of the system. Attached Figure Description

[0058] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0059] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a schematic diagram of the system structure of an embodiment of the environmental control system of this application;

[0061] Figure 2 This is a schematic diagram of the system structure of another embodiment of the environmental control system of this application;

[0062] Figure 3 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the control method of the environmental regulation system in the embodiments of this application;

[0063] Figure 4 A flowchart illustrating the control method of the environmental control system of this application (Example 1);

[0064] Figure 5 A flowchart illustrating the control method of the environmental control system of this application in Embodiment 2;

[0065] Figure 6 This is a flowchart illustrating the control method of the environmental control system in Embodiment 3 of this application.

[0066] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0067] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0068] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0069] The main solution of this application embodiment is: a control method based on an environmental control system, the environmental control system including a heat pump device, a gas device, and a refrigerant circulation loop, the refrigerant circulation loop including an indoor terminal device, the heat pump device being heat-exchange connected to a first heat exchange section in the refrigerant circulation loop, the gas device being heat-exchange connected to the refrigerant circulation loop, the method including: obtaining a first refrigerant temperature of the first heat exchange section; determining a first target refrigerant temperature corresponding to the gas device based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system; and controlling the environmental control system to adjust the heat supply of the gas device based on the first target refrigerant temperature.

[0070] In this embodiment, for ease of description, the environmental control system will be used as the implementing entity for the following description.

[0071] In related technologies, in systems where gas equipment and heat pump equipment are combined as heat sources, if the output of the gas equipment is too small when heating, it cannot meet the heating demand, while if the output is too large, it will cause the water temperature in the flow path to rise too quickly, resulting in reliability problems of the heat pump and excessively high system energy costs.

[0072] This application provides the above-mentioned solution, in which the first target refrigerant temperature for controlling the heating capacity of the gas equipment is not an independently set temperature, but is determined by combining the refrigerant temperature of the first heat exchange section of the heat exchange connection of the heat pump equipment and the system target refrigerant temperature. This helps to ensure that the heating capacity of the gas equipment meets the system's heating demand without being too large, and avoids the refrigerant temperature of the first heat exchange section being too high. This effectively ensures the stability of the heat pump equipment during heating operation, and also helps to fully utilize the heating performance of the heat pump equipment to reduce gas costs, thereby meeting the heating demand, improving the reliability of the heat pump heating operation in the system, and saving the overall energy cost of the system.

[0073] In this embodiment of the invention, reference is made to Figures 1 to 2The environmental control system includes indoor terminal devices 400, which are installed in an indoor space to regulate the air. In this embodiment, the indoor terminal device 400 includes a convection heat exchange device 41 and / or a radiant terminal device 42. The number of indoor terminal devices 400 can be one or more, and more than one indoor terminal device 400 can be installed in different indoor spaces. When the number of indoor terminal devices 400 is more than one, more than one convection terminal device and more than one radiant terminal device 42 are connected in parallel.

[0074] The convection heat exchange device 41 includes a heat exchanger and a corresponding fan. The fan can drive the air in its environment to exchange heat with the heat exchanger, such as a fan coil unit or a ducted air conditioner.

[0075] The radiant terminal device 42 may include radiators, underfloor heating, etc.

[0076] The environmental control system may also include energy supply equipment, which provides energy for the indoor terminal equipment 400 to regulate the indoor environment.

[0077] In this embodiment, the energy supply equipment includes a heat pump device 200 and a gas device 300. The heat pump device 200 provides energy to the indoor terminal device 400 through refrigerant circulation, and the gas device 300 provides heat to the indoor terminal device 400 by burning gas. The gas device 300 may include a gas water heater or a gas wall-hung boiler, etc.

[0078] The environmental control system also includes a refrigerant circulation loop, a radiant terminal device 42 and / or a convective heat exchange device 41 located in the refrigerant circulation loop, and a heat pump device 200 and / or a gas device 300 connected to the refrigerant circulation loop for heat exchange.

[0079] The refrigerant circulation loop is filled with refrigerant, which circulates within the loop to provide energy to the radiant terminal device 42 and / or the convective heat exchange device 41. In this embodiment, the refrigerant is water. In other embodiments, the refrigerant may also be an aqueous solution of sodium chloride or calcium chloride salt, or an aqueous solution of an organic compound such as ethylene glycol or glycerol, etc.

[0080] A heat exchange module 500 can be installed in the refrigerant circulation loop. The refrigerant can circulate between the heat exchange module 500 and the indoor terminal device 400. The heat pump device 200 and / or the gas device 300 can supply energy to the heat exchange module 500 to regulate the indoor space energy supply for the indoor terminal device 400. The gas device 300 and / or the gas device 301 can be directly connected to the heat exchange module 500 for heat exchange, or the gas device 300 and / or the gas device 302 can be connected to the heat exchange module 500 for heat exchange through a circulation branch.

[0081] A fluid drive module can be installed in the refrigerant circulation loop to drive the flow of refrigerant in the loop.

[0082] When there are more than one indoor terminal device 400, a fluid regulation module 600 can be provided in the refrigerant circulation loop. The fluid regulation module 600 can be used to control the flow of refrigerant from the heat exchange module 500 into or stop the flow into each indoor terminal device 400. The fluid regulation module 600 can also be used to control the flow rate of refrigerant from the heat exchange module 500 into each indoor terminal device 400. In this embodiment, the fluid regulation module 600 includes at least two sub-regulation modules, each corresponding to one of the indoor terminal devices 400. The sub-regulation modules are configured to control the flow of refrigerant from the heat exchange module 500 into or stop the flow into the corresponding indoor terminal device 400. When the sub-regulation module is open, the refrigerant from the heat exchange module 500 is allowed to flow into the corresponding indoor terminal device 400; when the sub-regulation module is closed, the refrigerant from the heat exchange module 500 stops flowing into the corresponding indoor terminal device 400. In this embodiment, the fluid regulation module 600 is a manifold, and the sub-regulation modules are the water distribution valves in the manifold.

[0083] The heat pump device 200 includes a refrigerant circulation loop, which includes a compressor and a first heat exchanger, a throttling device, and a second heat exchanger connected in sequence.

[0084] In one implementation, the compressor's discharge port, second heat exchanger, throttling device, first heat exchanger, and compressor return port are sequentially connected. When the compressor is turned on, the refrigerant discharged by the compressor flows sequentially through the second heat exchanger, throttling device, and first heat exchanger before returning to the compressor. The second heat exchanger is in a condensing state, and the first heat exchanger is in an evaporating state.

[0085] In another implementation, the refrigerant circulation loop also includes a reversing assembly. The compressor's discharge port, return port, first heat exchanger, and second heat exchanger are all connected to the reversing assembly. The reversing assembly has a first operating state and a second operating state: When the reversing assembly is in the first operating state, the compressor's discharge port is connected to the second heat exchanger and the compressor's return port is connected to the first heat exchanger. When the compressor is turned on, the refrigerant discharged by the compressor flows sequentially through the second heat exchanger, the throttling device, and the first heat exchanger before returning to the compressor. The second heat exchanger is in a condensing state, and the first heat exchanger is in an evaporating state. When the reversing assembly is in the second operating state, the compressor's discharge port is connected to the first heat exchanger and the compressor's return port is connected to the second heat exchanger. When the compressor is turned on, the refrigerant discharged by the compressor flows sequentially through the first heat exchanger, the throttling device, and the second heat exchanger before returning to the compressor. The first heat exchanger is in a condensing state, and the second heat exchanger is in an evaporating state.

[0086] In this embodiment, both the radiant terminal device 42 and the convection heat exchange device 41 are located in the refrigerant circulation loop. The gas equipment 300 and the heat pump equipment 200 are both connected to the refrigerant circulation loop for heat exchange, so as to regulate the energy supply of the indoor space for the radiant terminal device 42 and the convection heat exchange device 41. When there is more than one radiant terminal device 42, the more than one radiant terminal device 42 can be connected in parallel; when there is more than one convection heat exchange device 41, the more than one convection heat exchange device 41 can be connected in parallel.

[0087] When the heat pump device 200 and / or the gas device 300 are turned on, the temperature of the refrigerant in the heat exchange module 500 in the refrigerant circulation loop can be adjusted. The heat carried by the refrigerant flowing out of the heat exchange module 500 can provide energy to the space where the radiant terminal device 42 and / or the convection heat exchange device 41 are located. The refrigerant flowing out of the radiant terminal device 42 and / or the convection heat exchange device 41 can flow back to the heat exchange module 500 to readjust the temperature.

[0088] In the first embodiment of the environmental control system, referring to Figure 1 The refrigerant circulation loop includes a third loop, a fourth loop, and a fifth loop. The second heat exchanger in the heat pump device 200 is connected to the third loop for heat exchange, and the gas device 300 is connected to the fourth loop for heat exchange. The radiant terminal device 42, the convection heat exchange device 41, and the heat exchange module 500 are all located in the fifth loop. Both the third and fourth loops are connected to the heat exchange module 500 for heat exchange. The corresponding heat exchange sections in the second and third loops can be integrated into the hydraulic module 800 for heat exchange. The aforementioned fluid drive module may include fluid pumps respectively installed in the third, fourth, and fifth loops.

[0089] In this embodiment, the heat exchange module 500 may include a coupling tank, a buffer tank, or a water pipe assembly, etc. The third and / or fourth loops may be connected to the heat exchange module 500, allowing the refrigerants in the third, fourth, and fifth loops to mix and exchange heat within the heat exchange module 500. The third and / or fourth loops are connected to the heat exchange module 500 via different flow paths, and the refrigerants in the third and / or fourth loops do not mix during heat exchange.

[0090] In the second embodiment of the environmental control system, referring to Figure 2The refrigerant circulation loop includes a sixth loop and a seventh loop. The radiant terminal device 42, the convection heat exchange device 41, and the heat exchange module 500 are all located in the sixth loop. The gas equipment 300 is connected to the seventh loop for heat exchange. The heat exchange module 500 includes a first heat exchange module and a second heat exchange module. The first heat exchange module is connected to the second heat exchanger in the heat pump device 200, and the second heat exchange module is connected to the seventh loop for heat exchange. The second heat exchanger and the first heat exchange module can be integrated into the hydraulic module 800 for heat exchange. The aforementioned fluid drive module may include fluid pumps respectively located in the sixth and seventh loops.

[0091] In this embodiment, the second heat exchange module may include a coupling tank, a buffer tank, or a water pipe assembly, etc. The seventh loop may be connected to the second heat exchange module, so that the refrigerant in the sixth and seventh loops can mix and exchange heat in the second heat exchange module; the seventh loop and the second heat exchange module may also be connected through different flow paths for heat exchange, and the refrigerant in the seventh loop and the second heat exchange module does not mix during the heat exchange process.

[0092] Based on the above-mentioned environmental control system, the operating modes of the environmental control system include at least the following:

[0093] In the first temperature control mode, at least one of the following is activated: the heat pump device 200 is in heating mode (the compressor's exhaust port is connected to the second heat exchanger) and the gas device 300 is activated. The fan in the convection heat exchange device 41 is activated, the sub-regulation module corresponding to the radiant terminal device 42 is activated, and the sub-regulation module corresponding to the convection heat exchange device 41 is activated. Both the convection heat exchange device 41 and the radiant terminal device 42 release heat to their respective spaces.

[0094] In the second temperature control mode, at least one of the following is activated: the heat pump device 200 operates in heating mode (the compressor's exhaust port is connected to the second heat exchanger) and the gas device 300. The fan in the convection heat exchange device 41 is turned off, the sub-regulation module corresponding to the radiant terminal device 42 is turned on, the sub-regulation module corresponding to the convection heat exchange device 41 is turned off, the convection heat exchange device 41 stops heat exchange, and the radiant terminal device 42 releases heat to its space.

[0095] In the third temperature control mode, at least one of the following is activated: the heat pump device 200 operates in heating mode (the compressor's exhaust port is connected to the second heat exchanger and the compressor's return port is connected to the first heat exchanger) and the gas device 300. The fan in the convection heat exchange device 41 is activated, the sub-regulation module corresponding to the radiant terminal device 42 is deactivated, the sub-regulation module corresponding to the convection heat exchange device 41 is activated, the convection heat exchange device 41 releases heat to its space, and the radiant terminal device 42 stops heat exchange.

[0096] In defrosting mode, the heat pump equipment 200 operates in defrosting mode (the compressor's exhaust port is connected to the first heat exchanger and the compressor's return port is connected to the second heat exchanger). When the fan in the convection heat exchange device 41 is turned on and the corresponding sub-regulation module is turned on, the convection heat exchange device 41 can release heat to its space. When the fan in the convection heat exchange device 41 is turned off and the corresponding sub-regulation module is turned off, the convection heat exchange device 41 can stop heat exchange. When the sub-regulation module corresponding to the radiant terminal device 42 is turned on, the radiant terminal device 42 releases heat to its space. When the sub-regulation module corresponding to the radiant terminal device 42 is turned off, the radiant terminal device 42 stops heat exchange. The heating capacity of the gas equipment 300 is greater than or equal to the cooling capacity released by the second heat exchanger. When at least one of the convection heat exchanger 41 and the radiant terminal device 42 is in a heat release state, the heating capacity of the gas equipment 300 is greater than the cooling capacity released by the second heat exchanger. When both the convection heat exchanger 41 and the radiant terminal device 42 stop heat exchange, the heating capacity of the gas equipment 300 may be greater than or equal to the cooling capacity released by the second heat exchanger.

[0097] In one feasible implementation, refer to Figures 1 to 2 The heat pump device 200 (such as an outdoor unit and / or a hydraulic module 800) can communicate with the gas appliance 300, the gas appliance 300 can communicate with the fluid regulating module 600, and the convection heat exchange device 41 can communicate with the gas appliance 300. When the heat pump device 200 includes an outdoor unit, the aforementioned first heat exchanger, throttling device, and compressor can be located in the outdoor unit.

[0098] Each indoor space regulated by the environmental control system can be equipped with a wired controller 700. The convection heat exchange device 41 and the sub-controller module can be bound and communicated with the wired controller 700 in a one-to-one correspondence. The wired controller 700 can control at least one of the following: the sub-controller module, the fluid pump, the gas equipment 300, the total target refrigerant temperature, the set temperature of the indoor space, etc.

[0099] Reference Figure 3 The environmental control system also includes an environmental detection module 01, which can be used to detect environmental parameters of the environment in which the environmental control system is located (e.g., at least one of the following: ambient temperature, ambient humidity, ambient enthalpy, ambient dew point temperature). The environmental detection module 01 may include an indoor detection module and / or an outdoor detection module. The indoor detection module may be located in the indoor space regulated by the environmental control system (e.g., on the wired controller 700 or the return air vent of the convection heat exchange device 41), and the outdoor detection module may be located in the outdoor environment where the environmental control system is located.

[0100] Reference Figure 3The environmental control system may also include a temperature detection module 02. The temperature detection module 02 can be used in the refrigerant circulation loop to detect and control the required refrigerant temperature. For example, the temperature detection module 02 may be set in at least one of the following locations: the liquid outlet of the heat exchange module 500, the liquid return port of the heat exchange module 500, the liquid outlet of the gas equipment 300, the liquid return port of the gas equipment 300, the liquid outlet of the hydraulic module 800, the liquid return port of the hydraulic module 800, the main liquid supply port of the fluid regulation module 600, the main liquid return port of the fluid regulation module 600, etc.

[0101] Reference Figure 3 The environmental control system also includes a control device 100. The aforementioned heat pump equipment 200, gas equipment 300, convection heat exchange device 41, environmental detection module 01, temperature detection module 02, and refrigerant circulation loop (such as fluid regulation module 600, fluid drive module, etc.) are all connected to the control device 100.

[0102] The control device 100 includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor 1001, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, the instructions being executed by the at least one processor 1001 to enable the at least one processor 1001 to execute the control method of the environmental regulation system in the following embodiment.

[0103] The following is for reference. Figure 3 The diagram illustrates a structural schematic of a control device 100 suitable for implementing embodiments of this application. The environmental control system in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 3 The control device 100 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0104] like Figure 3As shown, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the control unit 100 with various systems is shown in the figure, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0105] Specifically, according to the embodiments disclosed in this application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the control method of the environmental control system of the embodiments disclosed in this application.

[0106] The environmental control system provided in this application, employing the control method of the environmental control system in the following embodiments, can solve the technical problems of meeting heating demand, improving the reliability of heat pump heating operation in the system, and saving overall system energy costs. Compared with the prior art, the beneficial effects of the environmental control system provided in this application are the same as the beneficial effects of the control method of the environmental control system provided in the following embodiments, and other technical features of this environmental control system are the same as those disclosed in the method of the following embodiments, and will not be repeated here.

[0107] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or environmental control system capable of performing the above functions. The following description uses an environmental control system as an example to illustrate this embodiment and the subsequent embodiments.

[0108] Based on this, embodiments of this application provide a control method for an environmental control system, referring to... Figure 4 , Figure 4 This is a flowchart illustrating the first embodiment of the control method for the environmental control system of this application.

[0109] In this embodiment, the environmental control system includes a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes indoor terminal equipment. The heat pump device is heat-exchange connected to a first heat exchange section in the refrigerant circulation loop, and the gas device is heat-exchange connected to the refrigerant circulation loop. The first heat exchange section may be a module within the aforementioned hydraulic module that exchanges heat with a second heat exchanger. The control method of the environmental control system includes steps S10 to S30:

[0110] Step S10: Obtain the first refrigerant temperature of the first heat exchange section;

[0111] In this embodiment, when the preset function is enabled, the environmental control system is in a supplementary energy mode (e.g., a supplementary heating mode), and step S10 is executed in the supplementary energy mode. The preset function is enabled or disabled in response to user commands. The supplementary energy mode is configured to cooperate between the convective heat exchange device and the radiant terminal device to meet the temperature comfort requirements of the target space.

[0112] During the process of obtaining the temperature of the first refrigerant, the heat pump equipment can be in heating mode or stop heating.

[0113] The first refrigerant temperature may include at least one of the following: the return temperature of the first heat exchange section, the refrigerant temperature inside the first heat exchange section, and the outlet temperature of the first heat exchange section.

[0114] In this embodiment, the first refrigerant temperature is the currently detected temperature of the first heat exchange section. In other embodiments, the first refrigerant temperature may also be the target refrigerant temperature of the first heat exchange section.

[0115] Step S20: Determine the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system;

[0116] The system target refrigerant temperature represents the total heating demand of the environmental control system. The system target refrigerant temperature is the target value of the refrigerant temperature at a target location on the refrigerant circulation loop. The system target refrigerant temperature can be a user-set temperature or a temperature obtained by correcting a user-set temperature.

[0117] The target refrigerant temperature of the system can be one of the following parameters: the target refrigerant temperature in the heat exchange module (e.g., buffer tank or coupling tank), the target outlet temperature of the heat exchange module (e.g., buffer tank or coupling tank or hydraulic module), the target return temperature of the aforementioned heat exchange module (e.g., buffer tank or coupling tank or hydraulic module), the target outlet temperature of the fluid conditioning module, the target return temperature of the fluid conditioning module, etc.

[0118] In one implementation, a first heat of heat corresponding to a first refrigerant temperature is determined, a target total heat of heat corresponding to a system target refrigerant temperature is determined, and the first target refrigerant temperature is determined based on the target total heat of heat and the first heat of heat. In another implementation, a temperature difference between the system target refrigerant temperature and the first refrigerant temperature is determined, and the first target refrigerant temperature is determined based on the temperature difference.

[0119] Among them, the first target refrigerant temperature is lower than the system target refrigerant temperature.

[0120] Step S30: Adjust the heating capacity of the gas equipment by controlling the environmental conditioning system according to the first target refrigerant temperature.

[0121] If the gas equipment is connected to the second heat exchange section in the refrigerant circulation loop, the environmental control system can be controlled to adjust the heat supply of the gas equipment according to the temperature difference or relationship between the actual refrigerant temperature of the second heat exchange section and the first target refrigerant temperature. Based on this, the actual refrigerant temperature of the second heat exchange section can reach the first target refrigerant temperature.

[0122] Increasing the heat supply of gas equipment can be achieved by at least one of the following: increasing the opening of the gas proportional valve, increasing the air circulation volume (increasing the fan speed), increasing the number of burner ignitions, increasing the flow rate of the refrigerant that exchanges heat with the gas equipment, turning on the gas equipment, etc.

[0123] Methods to reduce the heat supply of gas appliances may include at least one of the following: reducing the opening of the gas proportional valve, reducing the air circulation volume (increasing the fan speed), reducing the number of burner ignitions, reducing the flow rate of the refrigerant that exchanges heat with the gas appliances, shutting down the gas appliances, etc.

[0124] Before, after, or during step S30, the heat supply of the heat pump equipment can be adjusted by the environmental conditioning system that controls the target refrigerant temperature corresponding to the heat pump equipment.

[0125] This embodiment provides a control method for an environmental control system. The first target refrigerant temperature for controlling the heating output of the gas equipment is not an independently set temperature, but is determined by combining the refrigerant temperature of the first heat exchange section of the heat pump equipment and the system's target refrigerant temperature. This helps ensure that the heating output of the gas equipment meets the system's heating demand without being excessive. It also helps to ensure the stability of the heat pump equipment's heating operation when the refrigerant temperature of the first heat exchange section is too high. Furthermore, it helps to fully utilize the heating performance of the heat pump equipment, reduce gas costs, thereby meeting the heating demand, improving the reliability of the heat pump's heating operation in the system, and saving overall system energy costs.

[0126] Based on any of the above embodiments, in the second embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, refer to... Figure 5 Step S20 includes steps S21 to S22:

[0127] Step S21: Determine the reference target refrigerant temperature required for the supplementary heating of the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system;

[0128] The benchmark target refrigerant temperature is the target heat required to adjust the refrigerant temperature in the refrigerant circulation loop to the system target refrigerant temperature during the heat pump equipment's heating operation. This requires the refrigerant in the second heat exchange section to reach the target temperature.

[0129] In this embodiment, the first heat capacity corresponding to the heat pump device is determined based on the first refrigerant temperature, the system target heat capacity is determined based on the system target refrigerant temperature, the system target heat capacity and the first heat capacity are used to determine the target heat capacity required to supplement the gas equipment, and the reference target refrigerant temperature is determined based on the target heat capacity. In other embodiments, the reference target refrigerant temperature can also be determined based on the temperature difference between the system target refrigerant temperature and the first refrigerant temperature, and the flow rate difference between the heat exchange flow rate corresponding to the heat pump device and the heat exchange flow rate corresponding to the gas equipment.

[0130] Step S22: Reduce the reference target refrigerant temperature according to the target correction value to obtain the first target refrigerant temperature.

[0131] The target correction value may include a target correction percentage or a target correction magnitude. When the target correction value is a target correction percentage, the product of the target correction percentage and the reference target refrigerant temperature is taken as the first target refrigerant temperature; when the target correction value is a target correction magnitude, the difference between the reference target refrigerant temperature and the target correction magnitude is taken as the first target refrigerant temperature.

[0132] The target correction value can be a preset fixed value, such as 50%, and 50% of the reference target refrigerant temperature can be used as the first target refrigerant temperature. In other embodiments, the target correction value can also be determined according to the actual operation of the environmental control system. For example, the target correction value can be determined according to the temperature difference between the first refrigerant temperature and the target refrigerant temperature of the first heat exchange section.

[0133] In this embodiment, by means of the above method, the gas equipment outputs heat with a lower heat supply than the required heat supplementation, which helps to further avoid excessive output of the gas equipment, effectively improve the operational reliability of the heat pump equipment and save energy costs.

[0134] Based on any of the above embodiments, in the third embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 6 After step S30, steps S40 to S50 are also included:

[0135] Step S40: Adjust the first target refrigerant temperature according to the first actual refrigerant temperature at the target location to obtain the second target refrigerant temperature corresponding to the gas equipment;

[0136] The first actual refrigerant temperature is the current refrigerant temperature at the target location.

[0137] In this embodiment, the first target refrigerant temperature is adjusted based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature and / or the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature of the target location at the previous moment, thereby obtaining the second target refrigerant temperature corresponding to the gas equipment.

[0138] In one implementation, when the first temperature difference is less than a first preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature; when the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is determined as the second target refrigerant temperature; when the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is decreased to obtain the second target refrigerant temperature; wherein the first preset temperature difference is less than the second preset temperature difference. In this embodiment, the first preset temperature difference is less than 0, and the second preset temperature difference is greater than 0. The temperature adjustment value during the process of decreasing or increasing the first target refrigerant temperature can be a preset fixed value, or it can be determined according to the actual operating conditions of the environmental control system. For example, the temperature adjustment value can be determined based on the temperature difference between the current refrigerant temperature of the first heat exchanger and the target refrigerant temperature of the heat pump equipment, and the temperature difference between the current refrigerant temperature of the first heat exchanger and the upper limit refrigerant temperature allowed by the reliability of the heat pump equipment.

[0139] In another implementation, when the first temperature difference is less than a first preset temperature difference, the first target refrigerant temperature is corrected according to a first correction coefficient to obtain a second target refrigerant temperature; when the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is corrected according to a second correction coefficient to obtain a second target refrigerant temperature; when the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is corrected according to a third correction coefficient to obtain a second target refrigerant temperature; wherein the first preset temperature difference is less than the second preset temperature difference, the second target refrigerant temperature corresponding to the first correction coefficient is greater than the second target refrigerant temperature corresponding to the second correction coefficient, and the second target refrigerant temperature corresponding to the second correction coefficient is greater than the second target refrigerant temperature corresponding to the third correction coefficient. In this embodiment, the first preset temperature difference is less than 0, and the second preset temperature difference is greater than 0. In this embodiment, the second target refrigerant temperature obtained corresponding to the first correction coefficient is greater than the first target refrigerant temperature, the second target refrigerant temperature obtained corresponding to the second correction coefficient is the first target refrigerant temperature, and the second target refrigerant temperature obtained corresponding to the third correction coefficient is the first target refrigerant temperature less than the first target refrigerant temperature.

[0140] In another implementation, when the second temperature difference is less than the third preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature; when the second temperature difference is greater than or equal to the third preset temperature difference and less than the fourth preset temperature difference, the first target refrigerant temperature is determined as the second target refrigerant temperature; when the second temperature difference is greater than or equal to the fourth preset temperature difference, the first target refrigerant temperature is decreased to obtain the second target refrigerant temperature; wherein the third preset temperature difference is less than the fourth preset temperature difference. The second temperature difference accurately reflects the refrigerant temperature change in the refrigerant circulation loop. In this embodiment, the third preset temperature difference is less than 0, and the fourth preset temperature difference is greater than 0. The temperature adjustment value during the process of decreasing or increasing the first target refrigerant temperature can be a preset fixed value, or the value can be determined according to the actual operation of the environmental control system.

[0141] Specifically, the step of adjusting the first target refrigerant temperature based on the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment can be performed when the first temperature difference is less than the first preset temperature difference, or when the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, or when the first temperature difference is greater than or equal to the second preset temperature difference, to obtain the second target refrigerant temperature corresponding to the gas equipment.

[0142] In the process of adjusting the first target refrigerant temperature according to the second temperature difference value to obtain the second target refrigerant temperature corresponding to the gas equipment, before the step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a first temperature adjustment value based on the first temperature difference value; the step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: increasing the first target refrigerant temperature according to the first temperature adjustment value to obtain the second target refrigerant temperature; and / or, before the step of decreasing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a second temperature adjustment value based on the first temperature difference value; the step of decreasing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: decreasing the first target refrigerant temperature according to the second temperature adjustment value to obtain the second target refrigerant temperature. In this embodiment, the first temperature adjustment value is negatively correlated with the first temperature difference value, and the second temperature adjustment value is positively correlated with the first temperature difference value. Based on this, it is beneficial to further improve the heating comfort of the system while ensuring the reliable operation of the heat pump equipment and saving system energy costs.

[0143] Step S50: Adjust the heat exchange capacity of the gas equipment by controlling the environmental conditioning system according to the second target refrigerant temperature.

[0144] The environmental control system adjusts the heat supply of the gas equipment based on the temperature difference or relationship between the actual refrigerant temperature of the second heat exchange section and the second target refrigerant temperature. Based on this, the actual refrigerant temperature of the second heat exchange section can reach the second target refrigerant temperature.

[0145] Increasing the heat supply of gas equipment can be achieved by at least one of the following: increasing the opening of the gas proportional valve, increasing the air circulation volume (increasing the fan speed), increasing the number of burner ignitions, increasing the flow rate of the refrigerant that exchanges heat with the gas equipment, turning on the gas equipment, etc.

[0146] Methods to reduce the heat supply of gas appliances may include at least one of the following: reducing the opening of the gas proportional valve, reducing the air circulation volume (increasing the fan speed), reducing the number of burner ignitions, reducing the flow rate of the refrigerant that exchanges heat with the gas appliances, shutting down the gas appliances, etc.

[0147] After step S50, you can return to execute step S10 or step S40.

[0148] In this embodiment, the above method facilitates the initial output of a lower heat supply than the required heat supply when the gas equipment has a high heat supply demand. Then, it gradually increases the output to the required heat supply based on the actual temperature of the system. This avoids excessive heat supply from the gas equipment, which could lead to a rapid increase in system temperature. As a result, the reliability of the heat pump equipment is improved, the heating performance of the heat pump equipment is maximized, gas usage is minimized, and system energy efficiency is improved and energy costs are saved.

[0149] In other embodiments, the first target refrigerant temperature can be adjusted according to the temperature range in which the first actual refrigerant temperature is located to obtain the second target refrigerant temperature.

[0150] Furthermore, based on any of the above embodiments, in this embodiment, after determining the reference target refrigerant temperature required for supplemental heating of the gas equipment according to the first refrigerant temperature and the system target refrigerant temperature of the environmental control system, the method further includes:

[0151] When the heat pump equipment meets the defrosting conditions, the environmental control system is controlled to adjust the heat supply of the gas equipment according to the benchmark target refrigerant temperature.

[0152] If the heat pump equipment does not meet the defrosting conditions, the process of reducing the reference target refrigerant temperature according to a preset correction value is performed to obtain the first target refrigerant temperature.

[0153] In this embodiment, meeting the defrosting conditions indicates that the first heat exchanger has a defrosting requirement. During the defrosting process of the heat pump equipment, the first heat exchanger is in a heat release state and the second heat exchanger is in an evaporation state.

[0154] In this embodiment, the environmental control system is controlled to adjust the heat supply of the gas equipment based on the reference target refrigerant temperature or the first target refrigerant temperature.

[0155] In this embodiment, since the heat pump equipment can provide normal heating when there is no defrosting requirement, limiting the heat supply of the gas equipment when the actual refrigerant temperature of the system has not reached the required level helps ensure reliable operation of the heat pump equipment under normal heating conditions. When the heat pump equipment has a defrosting requirement, the heat supply of the gas equipment is not limited, allowing for a large heat output. This provides heat for both indoor heating and defrosting simultaneously, meeting indoor heating needs while improving defrosting efficiency.

[0156] Based on any of the above embodiments, in this embodiment, the target refrigerant temperature of the system is the target value of the refrigerant temperature at the target location in the refrigerant circulation loop. Before step S20, the method further includes:

[0157] If the actual refrigerant temperature at the target location is less than or equal to the target refrigerant temperature of the system, the environmental control system is controlled to start the gas equipment for heating.

[0158] The temperature of the first refrigerant can be obtained before the gas equipment is started to provide heat, after the gas equipment is started, or when the gas equipment is started.

[0159] After the gas-fired equipment starts supplying heat, and after obtaining the reference refrigerant temperature, the heating capacity of the gas-fired equipment can be adjusted by controlling the environmental conditioning system based on the reference target refrigerant temperature or the first target refrigerant temperature, depending on whether the heat pump equipment meets the defrosting conditions.

[0160] In this embodiment, when the actual refrigerant temperature at the target location is lower than the system's target refrigerant temperature, the gas equipment starts supplying heat, which helps to ensure that the system's heating demand is met.

[0161] In one feasible implementation, the step of controlling the environmental control system to start the gas equipment for heating when the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature includes: controlling the environmental control system to start the gas equipment for heating when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to a sixth preset temperature difference; or, controlling the environmental control system to start the gas equipment for heating when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to a seventh preset temperature difference.

[0162] In this embodiment, both the sixth preset temperature difference and the seventh preset temperature difference are less than 0, and the sixth preset temperature difference is less than the seventh preset temperature difference.

[0163] The fourth target refrigerant temperature is the target value of the refrigerant temperature in the first heat exchange section of the heat pump equipment, which is connected in the refrigerant circulation loop. The fourth target refrigerant temperature is the maximum target refrigerant temperature allowed for efficient heating by the heat pump equipment. The fourth target refrigerant temperature may include at least one of the following: the target outlet temperature of the first heat exchange section, the target return temperature of the first heat exchange section, or the target refrigerant temperature within the first heat exchange section.

[0164] In this embodiment, the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature accurately reflects the deviation between the heat pump equipment's heating supply and the heating demand. When this temperature difference is less than or equal to the sixth preset temperature difference, it indicates that the gas equipment has a high heat demand and the heat pump equipment has insufficient heat. At this time, the gas equipment is activated for heat compensation, thereby enabling the system to quickly and accurately reach the target refrigerant temperature while ensuring system energy efficiency through the cooperation of the heat pump equipment and the gas equipment. In addition, the temperature difference between the first actual refrigerant temperature and the fourth target refrigerant temperature accurately reflects the deviation between the actual refrigerant temperature in the refrigerant circulation loop under the current heat pump equipment regulation and the target temperature that can be achieved under the heat pump equipment regulation. When the system's actual refrigerant temperature has not reached the system target refrigerant temperature, the system's actual refrigerant temperature is much lower than the heat pump equipment's target refrigerant temperature, indicating that the current output of the heat pump equipment cannot adjust the system's refrigerant temperature to the system target refrigerant temperature, and the demand for supplementary heat from the gas equipment is large. At this time, the gas equipment is activated for heating, which is beneficial to ensuring the improvement of the system's heating efficiency.

[0165] In this embodiment, when the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is greater than the sixth preset temperature difference, or when the third actual refrigerant temperature is greater than the system target refrigerant temperature, or when the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature is greater than the seventh preset temperature difference, the environmental control system is controlled to stop the gas equipment from supplying heat.

[0166] In one feasible implementation, before the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental conditioning system, the method further includes:

[0167] When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the step of controlling the environmental conditioning system to start the gas equipment to supply heat is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to the sixth preset temperature difference.

[0168] When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is greater than a fifth preset temperature difference, the step of controlling the environmental conditioning system to start the heating of the gas equipment is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to a seventh preset temperature difference.

[0169] The refrigerant temperature of the first heat exchange section can be the same as the aforementioned first refrigerant temperature, or it can be a temperature measured at a different time.

[0170] In this embodiment, when the refrigerant temperature of the first heat exchanger is low, starting the gas equipment when the third actual refrigerant temperature is significantly lower than the system target refrigerant temperature ensures that the gas equipment can fully compensate for heat, enabling the temperature of the refrigerant circulation loop to quickly and accurately reach the system target refrigerant temperature. When the refrigerant temperature of the first heat exchanger is high, when the third actual refrigerant temperature is lower than the system target refrigerant temperature and significantly lower than the fourth target refrigerant temperature, it indicates that the output of the heat pump equipment under high-efficiency heating cannot adjust the system refrigerant temperature to the system target refrigerant temperature, resulting in a large demand for heat replenishment from the gas equipment. In this case, starting the gas equipment for heating helps to ensure the improvement of system energy efficiency and heating efficiency.

[0171] In one feasible implementation, before the step of controlling the environmental conditioning system to start the gas equipment for heating when the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature, the method further includes:

[0172] The environmental control system adjusts the heat supply of the heat pump equipment based on the fourth target refrigerant temperature of the heat pump equipment.

[0173] The fourth target refrigerant temperature is the target value of the refrigerant temperature in the first heat exchange section of the heat pump equipment, which is connected in the refrigerant circulation loop. The fourth target refrigerant temperature is the maximum target refrigerant temperature allowed for efficient heating by the heat pump equipment. The fourth target refrigerant temperature may include at least one of the following: the target outlet temperature of the first heat exchange section, the target return temperature of the first heat exchange section, or the target refrigerant temperature within the first heat exchange section.

[0174] The environmental control system is operated based on the fourth target refrigerant temperature and the actual refrigerant temperature of the first heat exchange section to increase or decrease the heat supply of the heat pump equipment.

[0175] The methods to increase the heat output of a heat pump device may include at least one of the following: increasing the frequency of the compressor, increasing the speed of the fan corresponding to the first heat exchanger and / or the second heat exchanger, increasing the refrigerant flow rate of the first heat exchanger section by the fluid drive module, turning on the heat pump device, etc.

[0176] Methods to reduce the heat output of a heat pump device may include at least one of the following: reducing the compressor frequency, reducing the speed of the fan corresponding to the first heat exchanger and / or the second heat exchanger, reducing the refrigerant flow rate of the first heat exchanger section by the fluid drive module, shutting down the heat pump device, etc.

[0177] In this embodiment, when the preset function is enabled and the compressor in the heat pump device is turned on, the environmental control system adjusts the heat supply of the heat pump device according to the fourth target refrigerant temperature of the heat pump device. During this process, if the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature, the environmental control system is controlled to start the gas equipment for heating. When the compressor in the heat pump device is turned off, the environmental control system is controlled to start the gas equipment for heating if the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature.

[0178] In the process of adjusting the heat supply of the heat pump equipment by controlling the environmental conditioning system according to the reference target refrigerant temperature or the first target refrigerant temperature, the heat supply of the heat pump equipment can be maintained by controlling the environmental conditioning system according to the fourth target refrigerant temperature of the heat pump equipment.

[0179] In this embodiment, by means of the above method, when the heat pump equipment is insufficient to meet the system's heating demand, the gas equipment can start to provide heating. However, after the gas equipment starts to provide heating, it first outputs heat that is lower than the required supplementary heat. This is conducive to the full performance of the heat pump equipment while cooperating with the gas equipment to supplement the heating to meet the heating demand. When the gas equipment starts to provide heating, the heat gradually increases, which is conducive to ensuring that the heating demand is met while improving the operational reliability of the heat pump equipment and saving system energy costs.

[0180] In one feasible implementation, the step of controlling the environmental conditioning system to adjust the heat supply of the heat pump device according to the fourth target refrigerant temperature of the heat pump device includes:

[0181] When the temperature difference between the actual refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the environmental control system is controlled to operate in order to improve the heat supply of the heat pump equipment.

[0182] If the temperature difference between the actual refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is greater than the fifth preset temperature difference, the environmental control system is controlled to reduce the heat supply of the heat pump equipment.

[0183] The actual refrigerant temperature of the first heat exchange section may include at least one of the following: the actual return liquid temperature of the first heat exchange section, the actual outlet liquid temperature of the first heat exchange section, and the actual refrigerant temperature inside the first heat exchange section.

[0184] In the process of increasing the heat output of a heat pump, the compressor frequency of the heat pump can be increased and / or the fan speed of the heat pump can be increased and / or the corresponding fluid pump of the heat pump can be increased based on the first temperature difference value.

[0185] During the process of reducing the heat supply of the heat pump equipment, the compressor of the heat pump equipment is controlled to reduce its frequency and / or the fan of the heat pump equipment is controlled to reduce its speed and / or the corresponding fluid pump of the heat pump equipment is controlled to reduce its speed, or the heat pump equipment is stopped from supplying heat, based on the first temperature difference value.

[0186] When the temperature difference between the refrigerant temperature in the first heat exchange section and the fourth target refrigerant temperature is less than or equal to a fifth preset temperature difference, after controlling the operation of the environmental control system to increase the heating capacity of the heat pump equipment, the following step is executed: when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to a sixth preset temperature difference, the step of controlling the environmental control system to start the gas equipment for heating is performed. Alternatively, after controlling the operation of the environmental control system to increase the heating capacity of the heat pump equipment, if the third actual refrigerant temperature does not meet the above conditions, the environmental control system is controlled to stop the gas equipment from supplying heat.

[0187] When the temperature difference between the refrigerant temperature in the first heat exchange section and the fourth target refrigerant temperature is greater than a fifth preset temperature difference, after controlling the environmental control system to reduce the heat supply of the heat pump equipment, the following step is executed: when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to a seventh preset temperature difference, the step of controlling the environmental control system to start the heating of the gas equipment is performed. Alternatively, after controlling the environmental control system to reduce the heat supply of the heat pump equipment, if the third actual refrigerant temperature does not meet the above conditions, the environmental control system is controlled to stop the gas equipment from supplying heat.

[0188] In this embodiment, the above method ensures that the heat pump equipment can accurately regulate the heating according to the required heat, thereby effectively improving the system's energy efficiency.

[0189] In other embodiments, the heat pump equipment can also be controlled to adjust the heat supply based on the actual refrigerant temperature of the first heat exchange section, the fourth target refrigerant temperature, and the system target refrigerant temperature.

[0190] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the environmental control system of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0191] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the control method of the environmental control system in the above embodiments.

[0192] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0193] The aforementioned computer-readable storage medium may be included in the environmental control system; or it may exist independently and not be assembled into the environmental control system.

[0194] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the environmental control system, cause the environmental control system to perform the following process: acquiring the first refrigerant temperature of the first heat exchange section; determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system; and controlling the environmental control system to adjust the heat supply of the gas equipment based on the first target refrigerant temperature.

[0195] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0196] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the above-described environmental control system. This solves the technical problem of how to meet heating demands, improve the reliability of heat pump operation in the system, and save overall system energy costs. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the control method of the environmental control system provided in the above embodiments, and will not be repeated here.

[0197] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0198] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0199] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method for an environmental control system, characterized in that, The environmental control system includes a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes indoor terminal equipment. The heat pump device is heat-exchange connected to a first heat exchange section in the refrigerant circulation loop. The gas device is heat-exchange connected to the refrigerant circulation loop. The method includes: Obtain the temperature of the first refrigerant in the first heat exchange section; The first target refrigerant temperature corresponding to the gas equipment is determined based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system. The environmental control system adjusts the heat supply of the gas equipment based on the first target refrigerant temperature.

2. The method as described in claim 1, characterized in that, The step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system includes: The reference target refrigerant temperature required for the supplemental heating of the gas equipment is determined based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system. The first target refrigerant temperature is obtained by reducing the reference target refrigerant temperature according to the target correction value.

3. The method as described in claim 2, characterized in that, The system target refrigerant temperature is the target value of the refrigerant temperature at a target location on the refrigerant circulation loop. Following the step of controlling the environmental conditioning system to adjust the heating capacity of the gas equipment based on the first target refrigerant temperature, the system further includes: Adjust the first target refrigerant temperature according to the first actual refrigerant temperature at the target location to obtain the second target refrigerant temperature corresponding to the gas equipment; The environmental conditioning system adjusts the heat exchange capacity of the gas equipment based on the second target refrigerant temperature.

4. The method as described in claim 3, characterized in that, The step of adjusting the first target refrigerant temperature based on the first actual refrigerant temperature at the target location to obtain the second target refrigerant temperature corresponding to the gas equipment includes: The first target refrigerant temperature is adjusted based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature and / or the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment, thereby obtaining the second target refrigerant temperature corresponding to the gas equipment.

5. The method as described in claim 4, characterized in that, The step of adjusting the first target refrigerant temperature based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature to obtain the second target refrigerant temperature corresponding to the gas equipment includes: When the first temperature difference is less than the first preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature. If the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is determined to be the second target refrigerant temperature. When the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is reduced to obtain the second target refrigerant temperature. Wherein, the first preset temperature difference is less than the second preset temperature difference.

6. The method as described in claim 4, characterized in that, The step of adjusting the first target refrigerant temperature based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature to obtain the second target refrigerant temperature corresponding to the gas equipment includes: If the first temperature difference is less than the first preset temperature difference, the first target refrigerant temperature is corrected according to the first correction coefficient to obtain the second target refrigerant temperature; When the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, the first target refrigerant temperature is corrected according to the second correction coefficient to obtain the second target refrigerant temperature. When the first temperature difference is greater than or equal to the second preset temperature difference, the first target refrigerant temperature is corrected according to the third correction coefficient to obtain the second target refrigerant temperature. Wherein, the first preset temperature difference is less than the second preset temperature difference, the second target refrigerant temperature corresponding to the first correction coefficient is greater than the second target refrigerant temperature corresponding to the second correction coefficient, and the second target refrigerant temperature corresponding to the second correction coefficient is greater than the second target refrigerant temperature corresponding to the third correction coefficient.

7. The method as described in claim 4, characterized in that, The step of adjusting the first target refrigerant temperature based on the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment, to obtain the second target refrigerant temperature corresponding to the gas equipment, includes: When the second temperature difference is less than the third preset temperature difference, the first target refrigerant temperature is increased to obtain the second target refrigerant temperature. If the second temperature difference is greater than or equal to the third preset temperature difference and less than the fourth preset temperature difference, the first target refrigerant temperature is determined to be the second target refrigerant temperature. When the second temperature difference is greater than or equal to the fourth preset temperature difference, the first target refrigerant temperature is reduced to obtain the second target refrigerant temperature. The third preset temperature difference is less than the fourth preset temperature difference.

8. The method as described in claim 7, characterized in that, The step of adjusting the first target refrigerant temperature based on the first temperature difference between the first actual refrigerant temperature and the system target refrigerant temperature, and the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature of the target location at the previous moment, to obtain the second target refrigerant temperature corresponding to the gas equipment, includes: If the first temperature difference is less than the first preset temperature difference, or if the first temperature difference is greater than or equal to the first preset temperature difference and less than the second preset temperature difference, or if the first temperature difference is greater than or equal to the second preset temperature difference, the step of adjusting the first target refrigerant temperature based on the second temperature difference between the first actual refrigerant temperature and the second actual refrigerant temperature at the target location at the previous moment, and obtaining the second target refrigerant temperature corresponding to the gas equipment, is executed.

9. The method as described in claim 7, characterized in that, Before the step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a first temperature adjustment value based on the first temperature difference value; The step of increasing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: increasing the first target refrigerant temperature according to the first temperature adjustment value to obtain the second target refrigerant temperature; And / or, before the step of reducing the first target refrigerant temperature to obtain the second target refrigerant temperature, the method further includes: determining a second temperature adjustment value based on the first temperature difference value; The step of reducing the first target refrigerant temperature to obtain the second target refrigerant temperature includes: reducing the first target refrigerant temperature according to the second temperature adjustment value to obtain the second target refrigerant temperature.

10. The method as described in claim 2, characterized in that, After the step of determining the reference target refrigerant temperature required for supplemental heating of the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system, the method further includes: When the heat pump equipment meets the defrosting conditions, the environmental control system is controlled to adjust the heat supply of the gas equipment according to the benchmark target refrigerant temperature. If the heat pump equipment does not meet the defrosting conditions, the step of reducing the reference target refrigerant temperature according to the preset correction value to obtain the first target refrigerant temperature is performed.

11. The method according to any one of claims 1 to 10, characterized in that, The system target refrigerant temperature is the target value of the refrigerant temperature at the target location in the refrigerant circulation loop. Before the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system, the method further includes: If the actual refrigerant temperature at the target location is less than or equal to the target refrigerant temperature of the system, the environmental control system is controlled to start the gas equipment for heating.

12. The method as described in claim 11, characterized in that, When the actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature, the step of controlling the environmental control system to start the gas equipment for heating includes: When the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature, and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to a sixth preset temperature difference, the environmental control system is controlled to start the gas equipment for heating; or, When the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to the seventh preset temperature difference, the environmental control system is controlled to start the heating of the gas equipment.

13. The method as described in claim 12, characterized in that, Before the step of determining the first target refrigerant temperature corresponding to the gas equipment based on the first refrigerant temperature and the system target refrigerant temperature of the environmental control system, the method further includes: When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the step of controlling the environmental conditioning system to start the gas equipment to supply heat is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the system target refrigerant temperature is less than or equal to the sixth preset temperature difference. When the temperature difference between the refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is greater than a fifth preset temperature difference, the step of controlling the environmental conditioning system to start the heating of the gas equipment is executed when the third actual refrigerant temperature is less than or equal to the system target refrigerant temperature and the temperature difference between the third actual refrigerant temperature and the fourth target refrigerant temperature of the heat pump equipment is less than or equal to a seventh preset temperature difference.

14. The method as described in claim 11, characterized in that, Before the step of controlling the environmental conditioning system to start the gas equipment for heating when the third actual refrigerant temperature at the target location is less than or equal to the system target refrigerant temperature, the method further includes: The environmental control system adjusts the heat supply of the heat pump equipment based on the fourth target refrigerant temperature of the heat pump equipment.

15. The method as described in claim 14, characterized in that, The step of controlling the environmental conditioning system to adjust the heat supply of the heat pump equipment according to the fourth target refrigerant temperature of the heat pump equipment includes: When the temperature difference between the actual refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is less than or equal to the fifth preset temperature difference, the environmental control system is controlled to operate in order to improve the heat supply of the heat pump equipment. If the temperature difference between the actual refrigerant temperature of the first heat exchange section and the fourth target refrigerant temperature is greater than the fifth preset temperature difference, the environmental control system is controlled to reduce the heat supply of the heat pump equipment.

16. An environmental control system, characterized in that, The environmental control system includes a control device, a heat pump device, a gas device, and a refrigerant circulation loop. The refrigerant circulation loop includes indoor terminal equipment. The heat pump device is heat-exchange connected to the first heat exchange section in the refrigerant circulation loop, and the gas device is heat-exchange connected to the refrigerant circulation loop. The heat pump device, the gas device, and the refrigerant circulation loop are all connected to the control device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer program is configured to implement the steps of the control method for the environmental control system as described in any one of claims 1 to 15.

17. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method of the environmental control system as described in any one of claims 1 to 15.

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