Control method for environment conditioning system, environment conditioning system, and storage medium

Abstract

Provided are a control method for an environment conditioning system, an environment conditioning system, and a storage medium. The environment conditioning system comprises: a first heat exchange apparatus (3), a heat pump system (1) and a gas system (2). The heat pump system (1) comprises a first secondary refrigerant circulation loop, and the gas system (2) comprises a second secondary refrigerant circulation loop, wherein both the first secondary refrigerant circulation loop and the second secondary refrigerant circulation loop are connected to the first heat exchange apparatus (3), the first secondary refrigerant circulation loop comprises a heat pump temperature adjustment apparatus (11) and an indoor tail-end device (12), and the second secondary refrigerant circulation loop comprises a gas heating apparatus (21). The method comprises: when a heat pump system (1) is in a heating mode, and when a state parameter indicating whether the current heat amount of an indoor terminal device (12) reaches a target heat amount meets a preset condition, controlling a gas system (2) to start a supplementary heating mode, so as to supplement heat for the heat pump system (1) by means of a gas heating apparatus (21), wherein the preset condition indicates that the current heat amount does not reach the target heat amount.

Description

Control method of environmental regulation system, environmental regulation system and storage medium

[0001] Related applications

[0002] This application claims priority to Chinese patent applications No. 202311426769.5 and No. 202322927941.7 filed on October 30, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of environmental regulation systems, and in particular to a control method for an environmental regulation system, an environmental regulation system, and a storage medium. Background Art

[0004] At present, many indoor heating systems use more than one heat source to provide heat. Some systems use air source heat pumps and gas heat sources. In the process of regulating the indoor environment with a dual heat source system, the air source heat pump and the gas heat source operate independently of each other. When the heat provided by the air source heat pump cannot meet the indoor heating needs, it will switch to the gas heat source to provide heat. This results in the air source heat pump's energy-saving and low-carbon capabilities being unable to be effectively utilized, wasting fuel energy.

[0005] Summary of the Invention

[0006] The main purpose of this application is to provide a control method for an environmental regulation system, an environmental regulation system and a storage medium, aiming to ensure indoor heating comfort while improving energy saving and low carbon effects.

[0007] To achieve the above-mentioned objectives, the present application provides a control method for an environmental conditioning system, the environmental conditioning system comprising a first heat exchange device, a heat pump system, and a gas system, the heat pump system comprising a first refrigerant circulation loop, the gas system comprising a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop both being connected to the first heat exchange device, the first refrigerant circulation loop comprising a heat pump temperature control device and an indoor terminal device, the second refrigerant circulation loop comprising a gas heating device, the control method for the environmental conditioning system comprising the following steps:

[0008] When the heat pump system is in a heating mode, obtaining a state parameter, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat; and

[0009] When the state parameter meets the preset condition, the gas system is controlled to start the heating mode to supplement the heat for the heat pump system through the gas heating device;

[0010] The preset condition indicates that the current heat does not reach the target heat.

[0011] In one embodiment, the state parameter includes the ambient temperature and the liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0012] The ambient temperature is less than or equal to the preset ambient temperature;

[0013] The temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature is greater than the first preset temperature difference, or the temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature is greater than the first preset temperature difference and lasts for a preset time.

[0014] In one embodiment, after the step of controlling the gas system to start a supplementary heat mode to supplement heat for the heat pump system through the gas heating device when the state parameter meets a preset condition, the method further includes:

[0015] Obtaining the liquid inlet temperature of the indoor terminal device, the first liquid outlet temperature of the heat pump temperature regulating device, and the second liquid outlet temperature of the gas heating device;

[0016] Determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature; and

[0017] The operation of the gas heating device is controlled according to the second liquid outlet temperature and the target liquid outlet temperature.

[0018] In one embodiment, the step of determining the target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature includes:

[0019] Determining the temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature; and

[0020] The first liquid outlet temperature is increased according to the temperature difference to obtain the target liquid outlet temperature.

[0021] In one embodiment, the step of increasing the first liquid outlet temperature according to the temperature difference to obtain the target liquid outlet temperature includes:

[0022] determining a first relationship value between a first rated heating amount of the heat pump system and a second rated heating amount of the gas system;

[0023] Correcting the temperature difference value according to the first relationship value to obtain a first temperature adjustment value; and

[0024] The first liquid outlet temperature is increased according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0025] In one embodiment, the first brine circulation circuit includes a first fluid pump, the second brine circulation circuit includes a second fluid pump, and the step of increasing the first liquid outlet temperature according to the temperature difference to obtain the target liquid outlet temperature includes:

[0026] determining a second relationship value between the operating flow rate of the first fluid pump and the operating flow rate of the second fluid pump;

[0027] Correcting the temperature difference value according to the second relationship value to obtain a second temperature adjustment value; and

[0028] The first liquid outlet temperature is increased according to the second temperature adjustment value to obtain the target liquid outlet temperature.

[0029] In one embodiment, after the step of controlling the gas system to start a supplementary heat mode to supplement heat for the heat pump system through the gas heating device when the state parameter meets a preset condition, the method further includes:

[0030] When the temperature difference between the liquid inlet temperature of the indoor terminal device and the set temperature of the indoor terminal device is greater than or equal to a second preset temperature difference, the gas system is controlled to stop the supplementary heat mode.

[0031] In one embodiment, the control method of the environmental conditioning system further includes:

[0032] When the heat pump system is in the cooling mode, the gas system is controlled to stop the supplementary heating mode.

[0033] In one embodiment, the first refrigerant circulation loop further includes a first fluid pump. When the heat pump system is in a heating mode, the step of obtaining the state parameter includes:

[0034] When the heat pump system is in a heating mode, the first fluid pump is controlled to start and the state parameter is obtained.

[0035] In addition, to achieve the above-mentioned objectives, the present application further proposes an environmental conditioning system, comprising a control device, a first heat exchange device, a heat pump system, and a gas system, wherein the heat pump system comprises a first refrigerant circulation loop, the gas system comprises a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop comprises a heat pump temperature control device and an indoor terminal device, and the second refrigerant circulation loop comprises a gas heating device;

[0036] The heat pump system and the gas system are both connected to the control device, which includes: a memory, a processor, and a control program for the environmental conditioning system stored in the memory and runnable on the processor. When the control program for the environmental conditioning system is executed by the processor, the steps of the control method for the environmental conditioning system as described in any one of the above items are implemented.

[0037] In addition, in order to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a control program of the environmental control system is stored. When the control program of the environmental control system is executed by the processor, the steps of the control method of the environmental control system as described in any of the above items are implemented.

[0038] The present application proposes a control method for an environmental conditioning system, in which a heat exchange connection is provided in a heat pump system and a gas system respectively. When the heat pump system is in heating mode, the heat released by the heat pump temperature control device can be used for heating the indoor terminal equipment. When it is determined through state parameters that the current heat of the indoor terminal equipment has not reached the target heat, the gas system starts the heat supplement mode, and the refrigerant heated by the gas heating device can supplement the heat of the refrigerant in the first refrigerant circulation loop through heat exchange when flowing through the first heat exchange device. Compared with the method of directly switching to the gas heat source, the combined use of the heat of the two heat sources can ensure that sufficient heat is provided for indoor heating while increasing the use time of the heat pump system and reducing the use time of the gas system, thereby ensuring that the energy-saving and low-carbon capacity utilization rate of the heat pump system is effectively improved, so as to ensure the comfort of indoor heating while improving the energy-saving and low-carbon effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic diagram showing the structure and brine flow direction of an embodiment of the present application's environmental conditioning system when a liquid supply module is connected to a second brine circulation loop;

[0040] FIG2 is a schematic diagram of the structure and brine flow direction of another embodiment of the environmental conditioning system of the present application when the liquid supply module is connected to the second brine circulation loop;

[0041] FIG3 is a schematic diagram of the structure and brine flow direction of another embodiment of the environmental conditioning system of the present application when the liquid supply module is connected to the second brine circulation loop;

[0042] FIG4 is a schematic diagram of the structure and brine flow direction of an embodiment of the present application's environmental conditioning system when the liquid supply module is connected to the first brine circulation loop;

[0043] FIG5 is a schematic diagram of the structure and brine flow direction of another embodiment of the environmental conditioning system of the present application when the liquid supply module is connected to the first brine circulation loop;

[0044] FIG6 is a schematic diagram showing the structure and brine flow direction of another embodiment of the environmental conditioning system of the present application when the liquid supply module is connected to the first brine circulation loop;

[0045] FIG7 is a schematic diagram of the structure and brine flow direction of an embodiment of the environmental conditioning system of the present application when the liquid supply module is connected to the gas heating device and the first brine circulation loop;

[0046] FIG8 is a schematic diagram of the structure and brine flow direction of an embodiment of the present application's environmental conditioning system when the liquid supply module is heat-exchange connected to the heat exchange branch in the second brine circulation loop;

[0047] FIG9 is a schematic diagram of the structure and brine flow direction of another embodiment of the environmental conditioning system of the present application when the liquid supply module is heat-exchange connected to the heat exchange branch in the second brine circulation loop;

[0048] FIG10 is a schematic diagram of the structure and brine flow direction of another embodiment of the present application's environmental conditioning system when the liquid supply module is heat-exchange connected to the heat exchange branch in the second brine circulation loop;

[0049] FIG11 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental control system of the present application;

[0050] FIG12 is a flow chart of an embodiment of a control method for an environmental regulation system of the present application;

[0051] FIG13 is a flow chart of another embodiment of a control method for an environmental conditioning system of the present application;

[0052] FIG14 is a flow chart of another embodiment of a control method for an environmental conditioning system of the present application.

[0053] Description of Figure Numbers:

[0054] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0055] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0056] The present application proposes an environmental regulation system.

[0057] In one embodiment of the present application, referring to Figures 1 to 11, the environmental conditioning system includes a control device 100, a first heat exchange device 3, a heat pump system 1, and a gas system 2. The heat pump system 1 and the gas system 2 are both connected to the control device 100. The heat pump system 1 includes a first refrigerant circulation loop, which includes a heat pump temperature control device 11 and an indoor terminal device 12. The gas system 2 includes a second refrigerant circulation loop, which includes a gas heating device 21. The pipeline between the heat pump temperature control device 11 and the indoor terminal device 12, as well as the gas heating device 21, are both connected to the first heat exchange device 3.

[0058] The brine filled in the first brine circulation loop and the second brine circulation loop is water. In other embodiments, the first brine circulation loop and / or the second brine circulation loop may also be filled with other types of brine, such as a sodium chloride or calcium chloride saline solution, or an aqueous solution of an organic compound such as ethylene glycol or glycerol, etc.

[0059] The heat pump thermostat 11 utilizes the energy output from the heat pump unit to regulate the refrigerant temperature. It can be connected to a heat exchange component within the heat pump unit that releases cooling or heat. When the heat pump system 1 is turned on and in the heating mode, the heat pump thermostat 11 increases the refrigerant temperature in the first refrigerant circulation loop. When in the cooling mode, the heat pump thermostat 11 decreases the refrigerant temperature in the first refrigerant circulation loop.

[0060] The indoor terminal device 12 is used to adjust the energy output by the flowing refrigerant. The indoor terminal device 12 includes a convection heat exchange device or a radiation heat exchange device. For example, the indoor terminal device 12 may include a fan coil unit, a heat sink, a floor heater, etc.

[0061] The number of indoor terminal devices 12 can be one or more. The multiple indoor terminal devices 12 can be located in different indoor spaces, and the types of indoor terminal devices 12 in different indoor spaces can be the same or different. When there are more than one indoor terminal device 12, the brine flow path where the heat pump temperature control device 11 and the first heat exchange device 3 are located is defined as the main flow path. The multiple indoor terminal devices 12 can be connected to the main flow path via a manifold 7 or a hydraulic balancing distributor to achieve on-off control of the flow paths of each terminal device.

[0062] The gas heating device 21 can be a device that heats the liquid flowing through it by burning gas. The gas heating device 21 can be a gas water heater or a gas wall-mounted boiler.

[0063] In one embodiment, the heat pump temperature control device 11, the first heat exchange device 3 and the indoor terminal equipment 12 are connected in sequence. Specifically, the outlet of the heat pump temperature control device 11, the first inlet of the first heat exchange device 3, the first outlet of the first heat exchange device 3, the inlet of the indoor terminal equipment 12, the outlet of the indoor terminal equipment 12 and the inlet of the heat pump temperature control device 11 are connected in sequence, and the refrigerant in the first refrigerant circulation loop can circulate between the heat pump temperature control device 11, the first heat exchange device 3 and the indoor terminal equipment 12.

[0064] In some embodiments, the heat pump thermostat 11, the indoor terminal device 12, and the first heat exchange device 3 may also be connected in sequence. Specifically, the outlet of the heat pump thermostat 11, the inlet of the indoor terminal device 12, the outlet of the indoor terminal device 12, the first inlet of the first heat exchange device 3, the first outlet of the first heat exchange device 3, and the inlet of the heat pump thermostat 11 are connected in sequence. The brine in the first brine circulation loop may circulate between the heat pump thermostat 11, the first heat exchange device 3, and the indoor terminal device 12. In other embodiments, the first brine circulation loop may include more than one sub-loop, the more than one sub-loops being heat-exchange connected, the more than one sub-loops including a first sub-loop and a second sub-loop, the heat pump thermostat 11 may be provided in the first sub-loop, the indoor terminal device 12 may be provided in the second sub-loop, and the first sub-loop and the second sub-loop may be directly heat-exchange connected or heat-exchange connected through other sub-loops.

[0065] The gas heating device 21 has a brine flow path, one end of which is connected to the second inlet of the first heat exchange device 3, and the other end of which is connected to the second outlet of the first heat exchange device 3. The brine in the second brine circulation loop can circulate between the gas heating device 21 and the first heat exchange device 3. The brine heated by the gas heating device 21 can flow into the first heat exchange device 3 to exchange heat with the first circulation loop. After heat exchange, the brine can flow back to the gas heating device 21 for further heat exchange.

[0066] Based on the above settings, the operating states of the environmental control system include but are not limited to the following:

[0067] In the first state, the heat pump system 1 operates in cooling mode, and the gas system 2 is turned off. The heat pump temperature control device 11 is in cooling mode, which can reduce the temperature of the refrigerant flowing through it. The low-temperature refrigerant can flow into the indoor terminal device 12 and be released into the indoor space to reduce the temperature of the indoor space.

[0068] In the second state, the heat pump system 1 operates in heating mode and the gas system 2 is turned off. The heat pump temperature control device 11 is in the heating state and can increase the temperature of the refrigerant flowing through it. The high-temperature refrigerant can flow into the indoor terminal device 12 and be released into the indoor space to increase the temperature of the indoor space.

[0069] In the third state, the heat pump system 1 operates in heating mode and the gas system 2 starts in supplementary heat mode. The gas heating device 21 is turned on to increase the temperature of the refrigerant. When the high-temperature refrigerant flows into the first heat exchange device 3, heat can be added to the first refrigerant circulation loop. The refrigerant circulating between the heat pump temperature control device 11 and the indoor terminal equipment 12 can absorb the heat added by the gas in the second refrigerant circulation loop when it flows through the first heat exchange device 3. Based on this, the indoor terminal equipment 12 can obtain heat provided by the heat pump and gas at the same time, and use it to increase the temperature of the indoor space.

[0070] The technical solution of the present application is to respectively set a first refrigerant circulation loop and a second refrigerant circulation loop in the heat pump system 1 and the gas system 2 of the environmental conditioning system. When the heat pump temperature control device 11 in the first refrigerant circulation loop is insufficient in the process of supplying heat to the indoor terminal device 12 through the circulating refrigerant, the refrigerant in the second refrigerant circulation loop can be heated by turning on the gas heating device 21. When the refrigerant in the second refrigerant circulation loop flows into the first heat exchange device 3, heat can be added to the heat pump system 1 through heat exchange. Compared with the method of directly switching to the gas heat source, the combined use of the heat of the two heat sources can ensure that sufficient heat is provided for indoor heating while increasing the use time of the heat pump system 1 and reducing the use time of the gas system 2, thereby ensuring that the energy-saving and low-carbon capacity utilization rate of the heat pump system 1 is effectively improved, so as to achieve the goal of ensuring indoor heating comfort while improving energy-saving and low-carbon effects. In addition, in addition to indoor heating, it can also meet indoor cooling needs to effectively improve indoor comfort.

[0071] In one embodiment, a first fluid pump 13 is provided in the first refrigerant circulation loop, and / or a second fluid pump 22 is provided in the second refrigerant circulation loop. When the first fluid pump 13 is turned on, it can drive the refrigerant to circulate in the first refrigerant circulation loop, and when the second fluid pump 22 is turned on, it can drive the refrigerant to circulate in the second refrigerant circulation loop.

[0072] In one embodiment, referring to Figures 1 to 3, the first heat exchange device 3 includes a first cavity 31 and a first coil 32 provided in the first cavity 31, the first coil 32 is connected to the gas heating device 21, and the pipeline between the heat pump temperature control device 11 and the indoor terminal equipment 12 is connected to the first cavity 31.

[0073] In one embodiment, the first heat exchange device 3 is specifically an inner coil water tank.

[0074] The first cavity 31 has a first inlet and a first outlet. The outlet of the heat pump thermostat 11, the first inlet of the first heat exchange device 3, the first outlet of the first heat exchange device 3, the inlet of the indoor terminal device 12, the outlet of the indoor terminal device 12, and the inlet of the heat pump thermostat 11 are sequentially connected. Therefore, the refrigerant flowing out of the heat pump thermostat 11 can flow into the first cavity 31 to exchange heat with the first coil 32. After heat exchange, the refrigerant can flow into the indoor terminal device 12 for further heat exchange. After heat exchange, the refrigerant in the indoor terminal device 12 flows back to the heat pump thermostat 11 for re-temperature adjustment.

[0075] The first coil 32 has a second inlet and a second outlet. The gas heating device 21 has a brine flow path, one end of which is connected to the second inlet of the first heat exchange device 3, and the other end of which is connected to the second outlet of the first heat exchange device 3. Therefore, the brine heated by the gas heating device 21 can flow into the first coil 32 to exchange heat with the brine in the first cavity 31. After the heat exchange, the brine can flow back to the gas heating device 21 to be reheated.

[0076] In one embodiment, through the above-mentioned method, sufficient heat exchange can be achieved between the first refrigerant circulation loop and the second refrigerant circulation loop, and the heat output by the gas heating device 21 can be fully and quickly added to the heat pump system 1 to provide heat for the indoor terminal equipment 12, so as to effectively improve the heat exchange efficiency between the gas system 2 and the heat pump system 1, and effectively improve the heating comfort of the indoor space.

[0077] In other embodiments, the pipeline between the heat pump temperature control device 11 and the indoor terminal equipment 12 may also be connected to the first coil 32 , and the gas heating device 21 is connected to the first cavity 31 .

[0078] In one embodiment, referring to Figures 4 to 6 and Figures 8 to 10, the first heat exchange device 3 includes a liquid mixing chamber 33, and the pipeline between the heat pump temperature control device 11 and the indoor terminal device 12 and the gas heating device 21 are both connected to the liquid mixing chamber 33.

[0079] In one embodiment, the first heat exchange device 3 is specifically a coupling tank.

[0080] In one embodiment, through the provision of the first heat exchange device 3, the refrigerant in the heat pump system 1 and the refrigerant in the gas system 2 can be fully mixed in the mixing chamber 33, so as to effectively improve the heat exchange efficiency between the gas system 2 and the heat pump system 1, thereby effectively improving the heating comfort of the indoor space.

[0081] In one embodiment, referring to FIG. 1 to FIG. 10 , the environmental conditioning system further includes a liquid supply module 4 , and the liquid supply module 4 is connected to the first brine circulation loop or the second brine circulation loop for heat exchange.

[0082] In one embodiment, the liquid supply module 4 is specifically a module for providing domestic water. In other embodiments, the liquid supply module 4 can also be a module for providing other fluids that require temperature regulation.

[0083] The pipeline between the heat pump temperature control device 11 and the first heat exchange device 3, and / or the pipeline between the first heat exchange device 3 and the indoor terminal device 12, and / or the pipeline between the indoor terminal device 12 and the heat pump temperature control device 11 can be connected to the liquid supply module 4 for heat exchange. When the heat pump system 1 operates in the heating mode, the heat of the refrigerant in the first refrigerant circulation loop is used not only to increase the temperature of the space where the indoor terminal device 12 is located, but also to increase the temperature of the liquid in the liquid supply module 4. When the heat pump system 1 operates in the cooling mode, the cooling capacity of the refrigerant in the first refrigerant circulation loop is used not only to reduce the temperature of the space where the indoor terminal device 12 is located, but also to reduce the temperature of the liquid in the liquid supply module 4.

[0084] The pipeline between the gas heating device 21 and the first heat exchange device 3 and / or the gas heating device 21 can be connected to the liquid supply module 4 for heat exchange. When the gas heating device 21 is turned on, the heat released by it can be used to increase the temperature of the liquid in the liquid supply module 4.

[0085] In one embodiment, through the above method, the environmental conditioning system can not only adjust the indoor environmental temperature, but also meet the user's liquid supply needs.

[0086] In one embodiment, referring to Figures 1 to 3, the liquid supply module 4 includes a liquid inlet pipeline 41 and a liquid outlet pipeline 42, the gas heating device 21 has a liquid inlet and a liquid outlet, the first pipeline between the liquid inlet and the first heat exchange device 3 is connected to the liquid inlet pipeline 41, and the second pipeline between the liquid outlet and the first heat exchange device 3 is connected to the liquid outlet pipeline 42.

[0087] It should be noted that the brine in the second brine circulation loop and the liquid in the liquid supply module 4 are of the same type.

[0088] In addition to heating the refrigerant after heat exchange with the first heat exchange device 3, the gas heating device 21 can also be used to heat the liquid that needs to be adjusted in temperature by flowing into the gas heating device 21 from the liquid inlet pipe 41. A portion of the liquid heated by the gas heating device 21 can flow out from the liquid outlet pipe 42 to meet the user's liquid supply needs, and another portion of the liquid heated by the gas heating device 21 can flow into the first heat exchange device 3 to supplement heat for the heat pump system 1.

[0089] In one embodiment, through the above method, the gas heating device 21 can meet the instant heating demand of the liquid supply module 4 and supplement its heat when the heat provided by the heat pump system 1 is insufficient, so as to ensure indoor heating comfort while improving energy saving and low carbon effects.

[0090] In one embodiment, referring to Figures 1 to 3, the connection position between the liquid inlet pipeline 41 and the first pipeline is defined as a first position, and a first one-way valve 51 is provided between the first position and the first heat exchange device 3. The first one-way valve 51 is configured to conduct one-way flow from the first heat exchange device 3 to the first position.

[0091] Under the one-way shut-off action of the first one-way valve 51, the refrigerant flowing out of the first heat exchange device 3 is allowed to flow into the gas heating device 21, and the liquid flowing into the liquid inlet pipe 41 is prohibited from flowing into the first heat exchange device 3, but all flows into the gas heating device 21 for heating. On the one hand, it can avoid the liquid flowing into the liquid inlet pipe 41 flowing into the first heat exchange device 3 and affecting the heat supply to the heat pump system 1. On the other hand, it can enable the liquid flowing into the liquid inlet pipe 41 to quickly flow into the gas heating device 21 for heating, thereby effectively further improving the indoor heating comfort while satisfying the improvement of the heating efficiency of the liquid provided in the liquid supply module 4.

[0092] In one embodiment, referring to FIG. 1 to FIG. 3 , the liquid inlet pipeline 41 is provided with a second one-way valve 52 , and the second one-way valve 52 is configured to be one-way from the inlet of the liquid inlet pipeline 41 to the outlet of the liquid inlet pipeline 41 .

[0093] Through the one-way shut-off function of the second one-way valve 52, the liquid flowing into the liquid inlet pipe 41 is allowed to flow into the second refrigerant circulation loop, and the liquid in the second refrigerant circulation loop is prohibited from flowing out of the liquid inlet pipe 41, thereby avoiding heat loss in the second refrigerant circulation loop, thereby meeting the liquid supply demand while ensuring indoor heating comfort.

[0094] In one embodiment, referring to Figures 4 to 6, the first brine flow path further includes a first fluid regulating assembly 14 and a brine branch 15. The liquid supply module 4 is connected to the brine branch 15 for heat exchange. The brine branch 15 and the indoor terminal device 12 are both connected to the heat pump temperature control device 11. The heat pump temperature control device 11 is connected to the inlet of the first heat exchange device 3.

[0095] The indoor terminal device 12, the refrigerant branch 15 and the outlet of the first heat exchange device 3 are all connected to the first fluid regulating component 14, and the first fluid regulating component 14 is used to regulate the amount of refrigerant flowing out of the first heat exchange device 3 to the refrigerant branch 15 and / or the indoor terminal device 12.

[0096] In one implementation of the present application, the first fluid regulating assembly 14 is a fluid switching assembly that can switch the flow direction of the refrigerant flowing out of the first heat exchange device 3 between the brine branch 15 and the indoor terminal device 12. For example, the first fluid regulating assembly 14 can be a three-way valve having a first valve position and a second valve position. The first valve position corresponds to the first heat exchange device 3 being connected to the indoor terminal device 12 and the first heat exchange device 3 being blocked from the brine branch 15. The second valve position corresponds to the first heat exchange device 3 being connected to the brine branch 15 and the first heat exchange device 3 being blocked from the indoor terminal device 12. For another example, the first fluid regulating assembly 14 may include a first control valve provided in the branch where the indoor terminal device 12 is located and a second control valve provided in the brine branch 15.

[0097] In another embodiment of the present application, the first fluid regulating assembly 14 may be a fluid proportional valve, which may adjust the ratio of the refrigerant flowing from the first heat exchange device 3 into the refrigerant branch 15 and the refrigerant in the indoor terminal equipment 12 .

[0098] Under the regulation of the first fluid regulating component 14 , the refrigerant flowing out of the first heat exchange device 3 can partially or completely flow through the refrigerant branch 15 to exchange heat with the liquid supply module 4 , and the liquid in the liquid supply module 4 can absorb the heat in the refrigerant branch 15 .

[0099] In one embodiment, through the above approach, when heat pump system 1 is in heating mode and gas system 2 is in supplemental heating mode, the liquid in liquid supply module 4 can be heated using both the heat provided by heat pump system 1 and the heat provided by gas system 2. This effectively improves the heating efficiency of liquid supply module 4 while also enhancing energy conservation and low-carbon efficiency. When heat pump system 1 is in cooling mode and gas system 2 is in non-heating mode, the liquid in liquid supply module 4 can be cooled in addition to heating, thus meeting the diverse liquid supply needs of users.

[0100] In other embodiments, the brine branch 15 may also be connected in parallel with the heat pump temperature control device 11 or the first heat exchange device 3 .

[0101] In one embodiment, referring to Figures 4 to 6, the liquid supply module 4 includes a second heat exchange device 43, a liquid inlet pipeline 41 and a liquid outlet pipeline 42, and the refrigerant branch 15, the liquid inlet pipeline 41 and the liquid outlet pipeline 42 are all connected to the second heat exchange device 43.

[0102] In one embodiment, the brine in the first brine circulation loop and the liquid in the liquid supply module 4 are the same liquid, for example, water. In other embodiments, the brine in the first brine circulation loop and the liquid in the liquid supply module 4 may be different liquids, for example, an ethanol solution in the first brine circulation loop and water in the liquid supply module 4.

[0103] In one implementation of the present application, the second heat exchange device 43 includes a second cavity 431 and a second coil 432 disposed within the second cavity 431. The brine branch 15 includes the second coil 432, and both the liquid inlet pipe 41 and the liquid outlet pipe 42 are in communication with the second cavity 431. The brine flowing out of the first heat exchange device 3 can flow into the second coil 432 to exchange heat with the liquid within the second cavity 431. Liquid flowing into the liquid inlet pipe 41 can flow into the second cavity 431, absorb energy from the brine in the second coil 432, and then flow out of the liquid outlet pipe 42 for user use.

[0104] In another implementation of the present application, the second heat exchange device 43 includes a mixing chamber, and the liquid supply module 4 and the refrigerant branch 15 are both connected to the mixing chamber. The liquids in the liquid supply module 4 and the refrigerant branch 15 can be fully mixed and exchanged for heat in the mixing chamber. When the liquid supply module 4 has a liquid supply demand, the liquid in the mixing chamber can flow out for user use.

[0105] In one embodiment, referring to Figure 7, a first refrigerant flow path and a second refrigerant flow path are set in the gas heating device 21, and the liquid supply module 4 includes a liquid inlet pipeline 41 and a liquid outlet pipeline 42. The liquid inlet pipeline 41, the first refrigerant flow path and the liquid outlet pipeline 42 are connected in sequence, and both ends of the second refrigerant flow path are connected to the first heat exchange device 3.

[0106] The outlet of the second brine flow path is communicated with the second inlet of the first heat exchange device 3 , and the inlet of the second brine flow path is communicated with the second outlet of the first heat exchange device 3 .

[0107] The first brine flow path and the second brine flow path are isolated from each other.

[0108] When the gas heating device 21 is turned on, the brine in the first brine flow path and the brine in the second brine flow path can be heated simultaneously.

[0109] In one embodiment, through the above arrangement, the gas heating device 21 can meet the instant heating demand of the liquid supply module 4 while providing supplementary heat to the heat pump system 1, thereby meeting the liquid supply demand while improving indoor heating comfort.

[0110] In one embodiment, referring to FIG. 7 , the liquid inlet pipe 41 is in communication with the first coolant circulation loop.

[0111] In the first refrigerant circulation loop, the first heat exchange device 3, or the pipeline between the first heat exchange device 3 and the heat pump temperature control device 11, or the pipeline between the first heat exchange device 3 and the indoor terminal equipment 12, or the pipeline between the indoor terminal equipment 12 and the heat pump temperature control device 11 can be connected to the liquid inlet pipeline 41.

[0112] In one embodiment, a water supply valve is provided on the pipeline between the liquid inlet pipeline 41 and the first refrigerant circulation loop. The water supply valve can be used to control the water supply from the liquid inlet pipeline 41 to the first refrigerant circulation loop or stop the water supply.

[0113] In one embodiment, the liquid inlet pipe 41 is connected to the first refrigerant circulation loop, which can achieve effective liquid replenishment of the first refrigerant circulation loop, avoiding insufficient refrigerant in the first refrigerant circulation loop resulting in poor heat exchange efficiency of the indoor terminal device 12 and even affecting the system operation reliability, thereby further improving indoor comfort while protecting the system.

[0114] In one embodiment, referring to FIG. 7 , a buffer container 6 is provided in the pipeline between the inlet of the heat pump temperature regulating device 11 and the outlet of the indoor terminal device 12 , and the liquid inlet pipeline 41 is in communication with the buffer container 6 .

[0115] The buffer container 6 can be used to contain the brine and its energy. In one embodiment, the buffer container 6 is a buffer water tank.

[0116] In one embodiment, a buffer container 6 is provided between the indoor terminal device 12 and the heat pump temperature control device 11, and the liquid inlet pipeline 41 is connected to the buffer container 6, which is conducive to achieving liquid replenishment while improving the stability of the refrigerant temperature flowing into the heat pump temperature control device 11, thereby meeting the indoor temperature control requirements while effectively improving the stability of the operation of the heat pump system 1.

[0117] In one embodiment, referring to FIG8 to FIG10 , the second coolant circulation loop further includes a heat exchange branch 23 and a second fluid regulating assembly 24 , the gas heating device 21 is connected in parallel with the heat exchange branch 23 , and the liquid supply module 4 is connected to the heat exchange branch 23 for heat exchange;

[0118] The liquid outlet of the first heat exchange device 3, the gas heating device 21 and the heat exchange branch 23 are all connected to the second fluid regulating component 24, and the second fluid regulating component 24 is used to regulate the refrigerant flow rate flowing from the liquid outlet into the heat exchange branch 23 and the first heat exchange device 3 respectively.

[0119] In one implementation of the present application, the second fluid regulating assembly 24 includes a three-way valve. The three-way valve has a third and fourth valve positions. The third valve position corresponds to a liquid outlet that communicates with the first heat exchange device 3 and blocks the liquid outlet from the heat exchange branch 23. The second valve position corresponds to a liquid outlet that communicates with the heat exchange branch 23 and blocks the liquid outlet from the first heat exchange device 3. By switching the valve position of the three-way valve, the flow direction of the refrigerant outflowing from the gas heating device 21 can be switched.

[0120] In another implementation of the present application, the second fluid component may include a proportional regulating valve, which can adjust the ratio of the refrigerant flowing from the liquid outlet into the heat exchange branch 23 and the refrigerant in the first heat exchange device 3.

[0121] In another implementation of the present application, the second fluid regulating component 24 may include a third control valve arranged in the heat exchange branch 23 and a fourth control valve arranged between the liquid outlet and the first heat exchange device 3. The fourth control valve is located between the heat exchange branch 23 and the first heat exchange device 3. The flow direction of the refrigerant outflowing from the gas heating device 21 is switched by opening and closing the third control valve and the fourth control valve.

[0122] In one embodiment, through the above method, the gas heating device 21 can adapt to the heat supply demand of the heat pump system 1 and the liquid supply demand of the liquid supply module 4 to distribute the heat it provides, thereby effectively balancing the liquid supply demand and the comfort of the indoor section.

[0123] In one embodiment, the heat pump system 1 further includes a refrigerant circulation loop, and the refrigerant circulation loop is connected to the heat pump temperature control device 11 for heat exchange.

[0124] The refrigerant circulation circuit is filled with refrigerant, such as fluorine.

[0125] The refrigerant circulation circuit specifically includes a compressor, a first heat exchange part, a throttling device and a second heat exchange part. The first heat exchange part, the throttling device and the second heat exchange part are connected in sequence. The first heat exchange part and the second heat exchange part are respectively connected to the exhaust port of the compressor and the return air port of the compressor. The first heat exchange part is connected to the heat pump temperature control device 11 for heat exchange.

[0126] In one embodiment, the compressor exhaust port, the first heat exchange unit, the throttling device, the second heat exchange unit, and the compressor return port are sequentially connected. When the compressor is turned on, the heat pump system 1 is in heating mode. The refrigerant discharged from the compressor flows through the first heat exchange unit, the throttling device, the second heat exchange unit, and then returns to the compressor. The first heat exchange unit is in a condensing state, and the second heat exchange unit is in an evaporating state.

[0127] In another embodiment, the refrigerant circulation circuit further includes a reversing assembly, and the compressor exhaust port, the compressor return port, the first heat exchange unit, and the second heat exchange unit are all connected to the reversing assembly. The reversing assembly has a first operating state and a second operating state. The first operating state corresponds to the exhaust port communicating with the first heat exchange unit and the return port communicating with the second heat exchange unit; the second operating state corresponds to the exhaust port communicating with the second heat exchange unit and the return port communicating with the first heat exchange unit. In one embodiment, when the compressor is turned on, the reversing assembly operates in the first operating state, and the heat pump system 1 is in heating mode. The refrigerant discharged from the compressor flows through the first heat exchange unit, the throttling device, and the second heat exchange unit in sequence before returning to the compressor. The first heat exchange unit is in a condensing state, and the second heat exchange unit is in an evaporating state. When the compressor is turned on, the reversing assembly operates in the second operating state, and the heat pump system 1 is in cooling mode. The refrigerant discharged from the compressor flows through the second heat exchange unit, the throttling device, and the first heat exchange unit in sequence before returning to the compressor. The first heat exchange unit is in an evaporating state, and the second heat exchange unit is in a condensing state.

[0128] In one embodiment, through the above arrangement, the energy in the refrigerant can be applied to the environment of the space where the indoor terminal device 12 is located through heat exchange between the refrigerant circulation loop and the heat pump temperature control device 11.

[0129] In other embodiments, the heat pump system 1 may further include a third refrigerant circulation loop, the third refrigerant circulation loop is heat-exchange connected to the refrigerant circulation loop, and the heat pump temperature control device 11 is heat-exchange connected to the third refrigerant circulation loop.

[0130] In one embodiment, referring to FIG. 2 to FIG. 3 , FIG. 5 to FIG. 6 , and FIG. 9 to FIG. 10 , the refrigerant circulation loop further includes a convection heat exchange device 16 .

[0131] In one embodiment, the convection heat exchange device 16 includes an air duct unit or the like.

[0132] The number of convection heat exchange devices 16 can be one or more. More than one convection heat exchange device 16 can be connected in parallel. The convection heat exchange device 16 can be installed in an indoor space, and different convection heat exchange devices 16 can be installed in different indoor spaces. The convection heat exchange device 16 and the indoor terminal device 12 can be installed in the same indoor space.

[0133] In one implementation, the convective heat exchange device 16 is connected in parallel with the first heat exchange portion. In another implementation, the convective heat exchange device 16 may also be the second heat exchange portion mentioned above.

[0134] In one embodiment, a convection heat exchange device 16 is also provided in the refrigerant circulation loop, thereby facilitating a variety of indoor space temperature control methods. Specifically, when the convection heat exchange device 16 serves as the aforementioned second heat exchange portion, the environmental conditioning system is on, the convection heat exchange device 16 is in an evaporating state, and the first heat exchange portion is in a condensing state. When the first fluid pump 13 of the first brine circulation loop is off, the convection heat exchange device 16 can be turned on to cool the indoor space. When the first fluid pump 13 of the first brine circulation loop is on, the convection heat exchange device 16 can be turned off, and the indoor terminal device 12 can be used to heat the indoor space, thereby achieving both cooling and heating of the indoor space through different terminals.

[0135] In one embodiment, as shown in FIG1 to FIG10 , the heat pump system 1 further includes a host 8 , the first coolant circulation loop further includes a first fluid pump 13 , and the refrigerant circulation loop further includes a compressor; the integrated module 9 includes the heat pump temperature control device 11 and the fluid pump;

[0136] The compressor and the integrated module 9 are both arranged in the host 8; or, the compressor is arranged in the host 8, and the integrated module 9 is arranged outside the host 8.

[0137] In one embodiment, the host 8 may be located in an outdoor environment.

[0138] The convection heat exchange device 16 is provided outside the main unit 8. When a second heat exchange unit is included in addition to the convection heat exchange device 16 and the first heat exchange unit, the second heat exchange unit may be provided inside the main unit 8.

[0139] The integrated module 9 can be produced independently as a hydraulic module.

[0140] In one embodiment, when the integrated module 9 and the compressor are both inside the host 8, it is beneficial to improve the convenience of installation; when the compressor is inside the host 8 and the integrated module 9 is outside the host 8, the host 8 and the integrated module 9 can be produced by different professional manufacturers respectively, thereby improving the quality of components and effectively improving the stability of system operation.

[0141] In one embodiment, the heat pump system 1 includes at least two main units 8. This helps improve the output capacity of the environmental conditioning system, thereby facilitating the provision of energy for regulating the indoor environment to more indoor terminal devices 12 or providing more energy for regulating the indoor environment to the indoor terminal devices 12, thereby further improving the comfort of indoor environmental conditioning.

[0142] In one embodiment, referring to FIG11 , the environment control system further includes an environment detection module 01 connected to the control device 100. The environment detection module 01 is disposed in the environment where the environment control system is located to detect the ambient temperature. In one embodiment, the environment detection module 01 is disposed in an outdoor environment to detect the outdoor ambient temperature.

[0143] 11 , the environment conditioning system further includes a first temperature sensor 02 connected to the control device 100 . The first temperature sensor 02 is provided at the inlet side of the indoor terminal device 12 to detect the inlet liquid temperature of the indoor terminal device 12 .

[0144] 11 , the environment control system further includes a second temperature sensor 03 connected to the control device 100 . The second temperature sensor 03 is provided at the outlet side of the heat pump temperature control device 11 to detect the outlet temperature of the heat pump temperature control device 11 .

[0145] 11 , the environment conditioning system further includes a third temperature sensor 04 connected to the control device 100 . The third temperature sensor 04 is provided at the liquid outlet side of the gas heating device 21 to detect the liquid outlet temperature of the gas heating device 21 .

[0146] In one embodiment of the present application, referring to FIG11 , a control device 100 for an environmental conditioning system includes a processor 1001, such as a CPU, a memory 1002, and a timer 1003. These components communicate with each other via a communication bus. Memory 1002 can be a high-speed RAM memory or a non-volatile memory, such as a disk drive. Memory 1002 can also be a storage device independent of processor 1001.

[0147] Those skilled in the art will understand that the device structure shown in FIG11 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

[0148] As shown in FIG. 11 , the memory 1002 as a computer storage medium may include a control program of the environmental conditioning system.

[0149] In the device shown in FIG11 , the processor 1001 can be used to call the control program of the environmental conditioning system stored in the memory 1002 and execute the relevant steps of the control method of the environmental conditioning system in the following embodiments.

[0150] The present application also provides a control method for an environmental regulation system, which is applied to the above-mentioned environmental regulation system.

[0151] 12 , an embodiment of a control method for an environmental control system of the present application is provided. The control method for an environmental control system includes:

[0152] Step S10, when the heat pump system is in heating mode, obtaining a state parameter, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat;

[0153] When the heat pump system is in heating mode, the heat pump thermostat is in a heating state, and the temperature of the refrigerant flowing through the heat pump thermostat increases. When the heating mode is turned on, the first fluid pump is turned on to drive the refrigerant to circulate between the heat pump thermostat, the first heat exchange device, and the indoor terminal equipment.

[0154] The status parameters may include operating status parameters of the indoor terminal device itself and / or environmental parameters of the environment in which the indoor terminal device resides. The operating status parameters may include at least one of the following parameters: the inlet liquid temperature of the indoor terminal device, the surface temperature of the indoor terminal device, the outlet liquid temperature of the indoor terminal device, etc. The environmental parameters may include at least one of the following parameters: the indoor ambient temperature, the outdoor ambient temperature, the indoor temperature change value, etc.

[0155] The target heat is specifically the target value of the heat output required by the indoor terminal device to meet the heating demand of the indoor environment where the indoor terminal device is located.

[0156] Step S20, when the state parameter meets the preset condition, controlling the gas system to start the heating mode to supplement heat for the heat pump system through the gas heating device; wherein the preset condition indicates that the current heat does not reach the target heat.

[0157] The preset condition may be a target parameter range that the state parameter needs to reach, or a target quantity relationship or size relationship that needs to be satisfied between the state parameter and the preset parameter.

[0158] When the gas system is turned on in the supplementary heating mode, the gas heating device can heat the refrigerant in the second refrigerant circulation loop. The heated refrigerant can flow into the first heat exchange device to exchange heat with the refrigerant flowing back from the first refrigerant circulation. The refrigerant after heat exchange can flow into the indoor terminal equipment and be released into the indoor space to increase the temperature of the indoor space.

[0159] In one embodiment, starting the supplementary heat mode of the gas system includes starting the gas heating device. Wherein, when the gas system further includes a second fluid pump, starting the supplementary heat mode of the gas system includes starting the gas heating device and starting the second fluid pump.

[0160] During supplemental heating mode, the gas heating device can operate at a fixed heating power or under control of control parameters determined by the actual state parameters of the environmental control system. The second fluid pump can operate at a fixed speed or under control of a speed determined by the actual state parameters of the environmental control system.

[0161] The present application proposes a control method for an environmental conditioning system, in which a heat exchange connection is provided in a heat pump system and a gas system respectively. When the heat pump system is in heating mode, the heat released by the heat pump temperature control device can be used for heating the indoor terminal equipment. When it is determined through state parameters that the current heat of the indoor terminal equipment has not reached the target heat, the gas system starts the heat supplement mode, and the refrigerant heated by the gas heating device can supplement the heat of the refrigerant in the first refrigerant circulation loop through heat exchange when flowing through the first heat exchange device. Compared with the method of directly switching to the gas heat source, the combined use of the heat of the two heat sources can ensure that sufficient heat is provided for indoor heating while increasing the use time of the heat pump system and reducing the use time of the gas system, thereby ensuring that the energy-saving and low-carbon capacity utilization rate of the heat pump system is effectively improved, so as to ensure the comfort of indoor heating while improving the energy-saving and low-carbon effect.

[0162] Among them, when the state parameters do not meet the preset conditions, the gas system can be controlled to stop the heating mode to avoid excessive heat in the indoor terminal equipment, so as to effectively meet the indoor heating comfort.

[0163] In one embodiment, the state parameter includes the ambient temperature and the liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0164] The ambient temperature is less than or equal to the preset ambient temperature;

[0165] The temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature is greater than the first preset temperature difference, or the temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature is greater than the first preset temperature difference and lasts for a preset time.

[0166] In one embodiment, the ambient temperature is an outdoor ambient temperature. In other embodiments, the ambient temperature may also be an indoor ambient temperature.

[0167] The set temperature of the indoor terminal device is specifically a preset target temperature that the indoor environment where the indoor terminal device is located needs to reach.

[0168] The temperature difference here is the calculated result of subtracting the inlet liquid temperature from the set temperature.

[0169] The first preset temperature difference value ranges from [-15, 5], and the preset time length ranges from [30min, 60min].

[0170] In one embodiment, when the ambient temperature is too low and / or the temperature difference between the set temperature and the inlet liquid temperature is too large, it indicates that the heat pump system alone does not provide enough heat for the indoor terminal equipment and cannot meet the indoor heating comfort. At this time, the heating supplement mode of the gas system is turned on in time to supplement the heat pump system with heat through the gas system, so as to effectively improve the indoor heating comfort.

[0171] Based on the above embodiment, another embodiment of the control method of the environmental control system of the present application is proposed. Referring to FIG13 , after step S20, the method further includes:

[0172] Step S30, obtaining the liquid inlet temperature of the indoor terminal device, the first liquid outlet temperature of the heat pump temperature control device, and the second liquid outlet temperature of the gas heating device;

[0173] The liquid inlet temperature is specifically the temperature of the refrigerant flowing into the indoor terminal device. In one embodiment, it is also the temperature of the refrigerant flowing out of the first outlet of the first heat exchange device.

[0174] The first liquid outlet temperature is specifically the temperature of the refrigerant flowing out after being regulated by the heat pump temperature regulating device. In one embodiment, it is also the temperature of the refrigerant flowing into the first inlet of the first heat exchange device.

[0175] The second liquid outlet temperature is specifically the temperature of the refrigerant after being heated by the gas heating device. In one embodiment, it is also the temperature of the refrigerant flowing from the gas heating device into the first heat exchange device.

[0176] Step S40, determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature;

[0177] Different liquid inlet temperatures and different first liquid outlet temperatures correspond to different target liquid outlet temperatures.

[0178] In one embodiment, the correspondence between the liquid inlet temperature, the first liquid outlet temperature and the target liquid outlet temperature can be pre-set. The correspondence may include a calculation formula, a mapping relationship, etc. Based on the correspondence, the target liquid outlet temperature corresponding to the current liquid inlet temperature and the first liquid outlet temperature can be determined.

[0179] In another embodiment, a temperature adjustment value may be determined according to the liquid inlet temperature and the first liquid outlet temperature, and the reference liquid outlet temperature may be adjusted according to the temperature adjustment value to obtain the target liquid outlet temperature.

[0180] Step S50: Controlling the operation of the gas heating device according to the second liquid outlet temperature and the target liquid outlet temperature.

[0181] The heating control parameters of the gas heating device are determined according to the size relationship, difference or ratio between the second liquid outlet temperature and the target liquid outlet temperature, and the operation of the gas heating device is controlled according to the determined heating control parameters.

[0182] For example, when the second liquid outlet temperature is greater than the target liquid outlet temperature, the gas heating device can be controlled to reduce the heating power; when the second liquid outlet temperature is less than the target liquid outlet temperature, the gas heating device can be controlled to increase the heating power.

[0183] For another example, the temperature difference between the second liquid outlet temperature and the target liquid outlet temperature is determined, a power adjustment value of the heating power is determined according to the temperature difference, and the heating power of the gas heating device is increased or decreased according to the power adjustment value.

[0184] In one embodiment, the liquid inlet temperature and the first liquid outlet temperature can accurately reflect the heat supplemented by the gas system. Therefore, determining the target liquid outlet temperature based on the liquid inlet temperature and the first liquid outlet temperature is beneficial to improving the accuracy of the gas system's heat supplement to the heat pump system, avoiding excessive or insufficient heat supplementation, achieving energy saving and low carbon while ensuring indoor heating comfort.

[0185] In one embodiment, the temperature difference between the set temperature of the indoor terminal device and the liquid inlet temperature is determined; the first liquid outlet temperature is increased according to the temperature difference to obtain the target liquid outlet temperature.

[0186] A temperature correction value is determined based on the temperature difference, and the sum of the temperature correction value and the first liquid outlet temperature is used as the target liquid outlet temperature. Alternatively, the product of the temperature correction value and the first liquid outlet temperature can be used as the target liquid outlet temperature.

[0187] Specifically, a correspondence between the temperature difference and the temperature correction value can be pre-established. The correspondence can include a mapping relationship, a calculation formula, or the like. Based on this correspondence, the temperature correction value corresponding to the current temperature difference can be determined. Alternatively, the indoor temperature of the indoor environment where the indoor terminal device is located, the first ambient temperature of the environment where the first heat exchange device is located, and the refrigerant temperature difference between the second inlet and the second outlet of the first heat exchange device can be obtained. Based on the indoor temperature, the first ambient temperature, and the refrigerant temperature difference, a target correspondence between the temperature difference and the temperature correction value can be obtained. Based on the target correspondence, the temperature correction value corresponding to the current temperature difference can be determined.

[0188] In one embodiment, the temperature difference value can accurately reflect the deviation between the current input heat and the required heat of the indoor terminal device. Therefore, increasing the first liquid outlet temperature based on the temperature difference value to obtain the target liquid outlet temperature is conducive to further improving the accuracy of heat supplementation in the gas system, so as to further achieve energy saving and low carbon and indoor heating comfort. Effective improvement of the effect.

[0189] In one embodiment, the step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature includes: determining a first relationship value between a first rated heating capacity of the heat pump system and a second rated heating capacity of the gas system; correcting the temperature difference value according to the first relationship value to obtain a first temperature adjustment value; and increasing the first liquid outlet temperature according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0190] The first rated heating capacity is the nominal heating capacity of the heat pump system. The second rated heating capacity is the nominal heating capacity of the gas heating device. Both the first and second rated heating capacities are pre-set fixed values.

[0191] In one embodiment, the first relational value is the ratio of the first rated heating amount to the second rated heating amount. In other embodiments, the first relational value may also be the difference between the first rated heating amount and the second rated heating amount.

[0192] The product of the first relation value and the temperature difference value is used as the first temperature adjustment value, and the sum of the first temperature adjustment value and the first liquid outlet temperature is used as the target liquid outlet temperature.

[0193] In one embodiment, since the supplementary heat of the wall-mounted boiler should be equal to the heat to be increased by the heat pump water supply, the first relationship value between the first rated heating amount and the second rated heating amount and the temperature difference value are combined to increase the first liquid outlet temperature to obtain the target liquid outlet temperature, which is conducive to further improving the accuracy of the target liquid outlet temperature and ensuring that when the gas heating device is controlled to operate according to the target liquid outlet temperature, the heat supplemented by the gas system to the heat pump system can accurately meet the comfort of indoor heating.

[0194] In one embodiment, the first refrigerant circulation circuit includes a first fluid pump, and the second refrigerant circulation circuit includes a second fluid pump. The step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature includes: determining a second relationship value between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump; correcting the temperature difference value according to the second relationship value to obtain a second temperature adjustment value; and increasing the first liquid outlet temperature according to the second temperature adjustment value to obtain the target liquid outlet temperature.

[0195] In one embodiment, the second relationship value is the ratio of the working flow rate of the first fluid pump to the working flow rate of the second fluid pump. In other embodiments, the second relationship value may also be the difference between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump.

[0196] The product of the second relation value and the temperature difference value is used as the second temperature adjustment value, and the sum of the second temperature adjustment value and the first liquid outlet temperature is used as the target liquid outlet temperature.

[0197] In one embodiment, since the supplementary heat of the wall-mounted boiler should be equal to the heat to be increased by the heat pump water supply, the target liquid outlet temperature is obtained by increasing the first liquid outlet temperature in combination with the second relationship value between the working flow of the first fluid pump and the working flow of the second fluid pump and the temperature difference value, which is conducive to further improving the accuracy of the target liquid outlet temperature and ensuring that when the gas heating device is controlled to operate according to the target liquid outlet temperature, the heat supplemented by the gas system to the heat pump system can accurately meet the comfort of indoor heating.

[0198] When the working flow rate of at least one of the first fluid pump and the second fluid pump is adjustable, the temperature difference can be corrected by the second relationship value obtained here to obtain the second temperature adjustment value, and the first liquid outlet temperature can be increased according to the second temperature adjustment value to obtain the target liquid outlet temperature; when the working flow rates of the first fluid pump and the second fluid pump are both fixed, the temperature difference can be corrected by the first relationship value obtained above to obtain the first temperature adjustment value, and the first liquid outlet temperature can be increased according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0199] Based on any of the above embodiments, another embodiment of the control method of the environmental control system of the present application is proposed. Referring to FIG14 , after step S20, the method further includes:

[0200] Step S60: When the temperature difference between the liquid inlet temperature of the indoor terminal device and the set temperature of the indoor terminal device is greater than or equal to a second preset temperature difference, the gas system is controlled to stop the supplementary heat mode.

[0201] The second preset temperature difference value here is a value greater than 0. The value range of the second preset temperature value is [2, 5].

[0202] When the temperature difference between the inlet temperature of the indoor terminal device and the set temperature is greater than or equal to the second preset temperature difference, it indicates that the inlet temperature of the indoor terminal device is already higher than the set temperature by a large margin, and the indoor terminal device has sufficient heat to meet the indoor heating needs. At this time, the gas heating device in the gas system can be turned off and the second fluid pump can be turned off.

[0203] Among them, when the gas system also includes a liquid supply module, during the process of stopping the supplementary heat mode, when the liquid supply module has a liquid heating demand, the gas heating device can remain in the open state, and the second fluid pump can be turned off.

[0204] It should be noted that, when step S20 further includes steps S30 to S50, step S60 here can be executed after step S50.

[0205] In one embodiment, the above method can be used to stop the supplementary heating mode in time when the indoor heating comfort has been effectively met. On the one hand, it can avoid the excessive temperature of the indoor terminal equipment affecting the indoor comfort. On the other hand, it can effectively reduce the fuel used by the gas system in regulating the indoor environment, thereby ensuring indoor comfort while further improving energy conservation and emission reduction effects.

[0206] Based on any of the above embodiments, another embodiment of the control method of the environmental conditioning system of the present application is proposed. The control method of the environmental conditioning system further includes: when the heat pump system is in the cooling mode, controlling the gas system to stop the supplementary heating mode.

[0207] In one embodiment, the stop supplementary heat mode includes shutting down the gas heating device in the gas system and shutting down the second fluid pump.

[0208] In other embodiments, when the gas system further includes a liquid supply module, when the supplementary heating mode is stopped and the liquid supply module has a liquid heating demand, the gas heating device may remain on, but the second fluid pump may be turned off.

[0209] In one embodiment, the above-mentioned method can ensure that the indoor terminal equipment can meet both indoor cooling and heating needs, thereby further improving the comfort of the indoor space.

[0210] Based on any of the above embodiments, the first refrigerant circulation loop also includes a first fluid pump. When the heat pump system is in heating mode, the step of obtaining the state parameters includes: when the heat pump system is in heating mode, controlling the first fluid pump to turn on and obtaining the state parameters.

[0211] In one embodiment, when the first fluid pump is driven to start, the state parameters of the brine are detected during the process of circulating the brine in the first brine circulation loop.

[0212] Based on this, it is helpful to improve the accurate judgment of whether the heat of indoor terminal equipment is sufficient, thereby ensuring the accuracy of gas system heat supplement regulation, thereby further improving energy conservation and emission reduction effects while meeting indoor comfort.

[0213] In addition, the present application also proposes a storage medium on which a control program of an environmental conditioning system is stored. When the control program of the environmental conditioning system is executed by a processor, the relevant steps of any embodiment of the control method of the environmental conditioning system are implemented.

[0214] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0215] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0216] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, environmental control system, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

[0217] The above are merely optional embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method for an environmental conditioning system, wherein: The environmental conditioning system comprises a first heat exchange device, a heat pump system and a gas system, the heat pump system comprises a first refrigerant circulation loop, the gas system comprises a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop comprises a heat pump temperature control device and an indoor terminal device, the second refrigerant circulation loop comprises a gas heating device, and the control method of the environmental conditioning system comprises the following steps: When the heat pump system is in a heating mode, obtaining a state parameter, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat; and When the state parameter meets the preset condition, the gas system is controlled to start the heating mode, so as to supplement the heat for the heat pump system through the gas heating device; The preset condition indicates that the current heat does not reach the target heat.

2. The control method of the environmental conditioning system according to claim 1, wherein: The state parameters include the ambient temperature and the liquid inlet temperature of the indoor terminal device, and the preset conditions include at least one of the following conditions: The ambient temperature is less than or equal to the preset ambient temperature; The temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference, or the temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference and lasts for a preset time.

3. The control method of the environmental conditioning system according to claim 1, wherein: After the step of controlling the gas system to start a supplementary heat mode when the state parameter meets a preset condition so as to supplement heat for the heat pump system through the gas heating device, the control method of the environmental conditioning system further includes: Obtaining the liquid inlet temperature of the indoor terminal device, the first liquid outlet temperature of the heat pump temperature regulating device, and the second liquid outlet temperature of the gas heating device; Determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature; and The operation of the gas heating device is controlled according to the second liquid outlet temperature and the target liquid outlet temperature.

4. The control method of the environmental conditioning system according to claim 3, wherein: The step of determining the target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature comprises: Determining the temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature; and The first liquid outlet temperature is increased according to the temperature difference value to obtain the target liquid outlet temperature.

5. The control method of the environmental conditioning system according to claim 4, wherein: The step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature comprises: Determine a first relationship value between a first rated heating capacity of the heat pump system and a second rated heating capacity of the gas system; Correcting the temperature difference value according to the first relationship value to obtain a first temperature adjustment value; and The first liquid outlet temperature is increased according to the first temperature adjustment value to obtain the target liquid outlet temperature.

6. The control method of the environment conditioning system according to claim 4, wherein: The first brine circulation loop includes a first fluid pump, the second brine circulation loop includes a second fluid pump, and the step of increasing the first liquid outlet temperature according to the temperature difference to obtain the target liquid outlet temperature includes: determining a second relationship value between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump; Correcting the temperature difference value according to the second relationship value to obtain a second temperature adjustment value; and The first liquid outlet temperature is increased according to the second temperature adjustment value to obtain the target liquid outlet temperature.

7. The control method of the environmental conditioning system according to any one of claims 1 to 6, wherein: After the step of controlling the gas system to start a supplementary heat mode when the state parameter meets a preset condition so as to supplement heat for the heat pump system through the gas heating device, the control method of the environmental conditioning system further includes: When the temperature difference between the liquid inlet temperature of the indoor terminal device and the set temperature of the indoor terminal device is greater than or equal to a second preset temperature difference, the gas system is controlled to stop the supplementary heat mode.

8. The control method of the environmental conditioning system according to any one of claims 1 to 6, wherein: The control method of the environmental conditioning system also includes: When the heat pump system is in the cooling mode, the gas system is controlled to stop the supplementary heating mode.

9. The control method of the environmental conditioning system according to any one of claims 1 to 6, wherein: The first refrigerant circulation loop further includes a first fluid pump. When the heat pump system is in a heating mode, the step of obtaining a state parameter includes: When the heat pump system is in a heating mode, the first fluid pump is controlled to start and the state parameter is obtained.

10. An environmental conditioning system, wherein: The environmental conditioning system includes a control device, a first heat exchange device, a heat pump system and a gas system, the heat pump system includes a first refrigerant circulation loop, the gas system includes a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop includes a heat pump temperature control device and an indoor terminal device, and the second refrigerant circulation loop includes a gas heating device; The heat pump system and the gas system are both connected to the control device, and the control device includes: a memory, a processor, and a storage device stored in the storage device. A control program of an environmental conditioning system is provided on the processor and can be run on the processor, and when the control program of the environmental conditioning system is executed by the processor, the steps of the control method of the environmental conditioning system as described in any one of claims 1 to 9 are implemented.

11. A storage medium, wherein: The storage medium stores a control program of the environmental conditioning system, and when the control program of the environmental conditioning system is executed by the processor, the steps of the control method of the environmental conditioning system according to any one of claims 1 to 9 are implemented.

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