Control method of environment adjusting system, environment adjusting system and storage medium

Abstract

The invention discloses a control method of an environment adjusting system, the environment adjusting system and a storage medium. In the environment adjusting system, a secondary refrigerant branch is connected with a liquid supply module in a heat exchange mode, a first secondary refrigerant circulation loop of the heat pump system and a second secondary refrigerant circulation loop of the gas system are both connected with a first heat exchange device, and a fluid adjusting assembly can adjust the amount of secondary refrigerant flowing to the secondary refrigerant branch and / or indoor end equipment from the first heat exchange device. The method comprises the steps that demand information including the heating demand state of a liquid supply module and / or indoor end equipment is obtained; controlling the fluid adjusting assembly to operate according to the demand information; when the heat pump system operates in the heating mode, state parameters of the heat pump system are obtained; and when the state parameters meet the preset condition that the heat supply amount of the heat pump system is insufficient, the gas system is controlled to start a heat supplementing mode to supplement heat to the heat pump system. The invention aims to meet the requirements of indoor heating comfort and liquid supply heating and improve the energy-saving and low-carbon effects at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental regulation systems, and in particular to a control method of an environmental regulation system, an environmental regulation system and a storage medium. Background Art

[0002] 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 the dual heat source system regulating the indoor environment, 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 inability to effectively utilize the energy-saving and low-carbon capabilities of the air source heat pump, wastes fuel energy, and the system cannot meet the liquid supply needs such as domestic water. Summary of the invention

[0003] The main purpose of the present invention is to provide a control method for an environmental regulation system, an environmental regulation system and a storage medium, aiming to ensure that the system can take into account both indoor heating comfort and liquid heating requirements while improving energy-saving and low-carbon effects.

[0004] To achieve the above-mentioned object, the present invention provides a control method for an environmental conditioning system, the environmental conditioning system comprising a first heat exchange device, a heat pump system, a gas system and a liquid supply module, the heat pump system comprising a first refrigerant circulation loop, the first refrigerant circulation loop comprising a heat pump temperature control device, an indoor terminal device, a refrigerant branch and a fluid regulating component, the refrigerant branch is heat exchange connected with the liquid supply module, 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 fluid regulating component is used to adjust the amount of refrigerant flowing out of the first heat exchange device to the refrigerant branch and / or the indoor terminal device, the control method of the environmental conditioning system comprises the following steps:

[0005] Acquiring demand information, wherein the demand information includes a heating demand state of the liquid supply module and / or the indoor terminal device;

[0006] Controlling the operation of the fluid regulating component according to the demand information;

[0007] When the heat pump system operates in a heating mode, obtaining state parameters of the heat pump system;

[0008] When the state parameter satisfies a preset condition that the heat pump system is insufficiently supplying heat, the gas system is controlled to start a heat supplement mode to supplement heat for the heat pump system.

[0009] Optionally, the step of controlling the operation of the fluid regulating component according to the demand information includes:

[0010] When the liquid supply module has a heating demand, the fluid regulating assembly is controlled to operate in a first operating state so that the outlet of the first heat exchange device is connected to the refrigerant branch;

[0011] When the liquid supply module has no heating demand, the fluid regulating assembly is controlled to operate in a second operating state so that the outlet of the first heat exchange device is communicated with the indoor terminal equipment.

[0012] Optionally, the second coolant circulation loop includes a gas heating device, and after the step of controlling the gas system to start a heat supplement mode to supplement heat for the heat pump system, the step further includes:

[0013] Acquiring a second liquid temperature of the liquid supply module;

[0014] determining a first target operating temperature of the gas heating device according to the second liquid temperature;

[0015] The gas heating device is controlled to operate according to the first target operating temperature.

[0016] Optionally, the step of determining the first target operating temperature of the gas heating device according to the second liquid temperature includes:

[0017] Determine a first temperature difference between a set temperature of the liquid supply module and a temperature of the second liquid, and determine a first correction coefficient according to the second temperature difference in the liquid supply module;

[0018] Correct the first temperature difference value according to the first correction coefficient to obtain a first temperature correction value;

[0019] The set temperature of the liquid supply module is increased according to the first temperature correction value and the heat transfer temperature difference value of the gas heating device to obtain the first target operating temperature.

[0020] Optionally, the second coolant circulation loop includes a gas heating device, and after the step of controlling the gas system to start a heat supplement mode to supplement heat for the heat pump system, the step further includes:

[0021] Acquire a second liquid inlet temperature of the indoor terminal device;

[0022] determining a second target operating temperature of the gas heating device according to the second liquid inlet temperature;

[0023] The gas heating device is controlled to operate according to the second target operating temperature.

[0024] Optionally, the step of determining the second target operating temperature of the gas heating device according to the second liquid inlet temperature includes:

[0025] Determine a third temperature difference between a second set temperature of the indoor terminal device and the second liquid inlet temperature, and determine a second correction coefficient according to a fourth temperature difference in the indoor terminal device;

[0026] Correct the third temperature difference value according to the second correction coefficient to obtain a second temperature correction value;

[0027] The second set temperature is corrected according to the second temperature correction value and the heat transfer temperature difference value of the gas heating device to obtain the second target operating temperature.

[0028] Optionally, after the step of controlling the gas system to start a heat supplement mode to supplement heat for the heat pump system, the step further includes:

[0029] When the fluid regulating assembly operates in the first operating state, obtaining a third liquid temperature of the liquid supply module;

[0030] When the third liquid temperature is greater than or equal to the set temperature of the liquid supply module, controlling the gas system to stop the supplementary heat mode;

[0031] Wherein, in the first operating state, the outlet of the first heat exchange device is connected to the refrigerant branch.

[0032] Optionally, after the step of controlling the gas system to stop the supplementary heat mode, the method further includes:

[0033] Controlling the fluid regulating assembly to operate in a second operating state, and controlling the environmental regulating system to operate according to the heat exchange demand of the indoor terminal device;

[0034] Wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal equipment.

[0035] Optionally, after the step of controlling the gas system to start a heat supplement mode to supplement heat for the heat pump system, the step further includes:

[0036] When the fluid regulating component operates in a second operating state, obtaining a second liquid inlet temperature of the indoor terminal device;

[0037] When the second liquid inlet temperature is greater than or equal to the set temperature of the indoor terminal device, controlling the gas system to stop the supplementary heating mode;

[0038] Wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal equipment.

[0039] Optionally, when the liquid supply module has a heating demand, the state parameter includes the ambient temperature and the first liquid temperature of the liquid supply module, and the preset condition includes at least one of the following conditions:

[0040] The ambient temperature is less than or equal to a first preset temperature;

[0041] A temperature difference between a set temperature of the liquid supply module and the first liquid temperature is greater than or equal to a first preset value.

[0042] Optionally, when the liquid supply module has no heating demand and the indoor terminal device has a heating demand, the state parameter includes the ambient temperature and the first liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0043] The ambient temperature is less than or equal to a second preset temperature;

[0044] The temperature difference between the set temperature of the indoor terminal device and the first liquid inlet temperature is greater than or equal to a second preset value.

[0045] Optionally, when the heat pump system operates in a heating mode, before the step of obtaining the state parameters of the heat pump system, the step further includes:

[0046] When the liquid supply module has a heating demand and the indoor terminal device does not have a heating demand, controlling the heat pump system to operate in a heating mode;

[0047] When the liquid supply module has a heating demand and the indoor terminal device has a heating demand, controlling the heat pump system to operate in a heating mode;

[0048] When the liquid supply module has no heating demand and the indoor terminal device has heating demand, controlling the heat pump system to operate in a heating mode;

[0049] When neither the liquid supply module nor the indoor terminal device has a heating demand, the process returns to the step of obtaining the demand information.

[0050] In addition, in order to achieve the above-mentioned purpose, the present application also proposes an environmental conditioning system, which includes a control device, a first heat exchange device, a heat pump system, a gas system and a liquid supply module, the heat pump system includes a first refrigerant circulation loop, the first refrigerant circulation loop includes a heat pump temperature control device, an indoor terminal device, a refrigerant branch and a fluid regulating component, the refrigerant branch is connected to the liquid supply module for heat exchange, 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, and the fluid regulating component is used for the amount of refrigerant flowing out of the first heat exchange device to the refrigerant branch and / or the indoor terminal device;

[0051] 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 executable on the processor, wherein the control program for the environmental conditioning system implements the steps of the control method for the environmental conditioning system as described in any one of the above items when executed by the processor.

[0052] In addition, in order to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a control program of an environmental control system is stored. When the control program of the environmental control system is executed by a processor, the steps of the control method of the environmental control system as described in any of the above items are implemented.

[0053] The present invention proposes a control method for an environmental conditioning system, in which a refrigerant circulation loop heat exchange connection is respectively arranged in a heat pump system and a gas system in the environmental conditioning system, and the operation of the fluid regulating component is adjusted according to the heating demand of the liquid supply module and / or the indoor terminal equipment, so that the energy of the heat pump temperature regulating device can be provided to the liquid supply module and / or the indoor terminal equipment according to the demand. On this basis, when the heat pump system is running in a heating mode and it is determined by the state parameters that the heat supply is insufficient, the gas system is controlled to start the supplementary heating mode to supplement the heat for the heat pump system, so as to ensure that the environmental conditioning system has sufficient heat to meet the corresponding heating demand regardless of the indoor heating demand or the liquid supply heating demand. In this process, the gas system will only be used when the heat pump system is insufficient in heat, so as to effectively reduce the use of gas resources and ensure that the utilization rate of the energy-saving and low-carbon capacity of the heat pump system is effectively improved, so as to ensure that the system takes into account both the indoor heating comfort and the liquid supply heating demand while improving the energy-saving and low-carbon effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic diagram of the structure and flow direction of the secondary coolant of an embodiment of the environmental conditioning system of the present invention;

[0055] Figure 2A schematic diagram of the structure and flow direction of the brine of another embodiment of the environmental conditioning system of the present invention;

[0056] Figure 3 A schematic diagram of the structure and flow direction of the brine of another embodiment of the environmental conditioning system of the present invention;

[0057] Figure 4 A schematic diagram of the hardware structure involved in the operation of an embodiment of the environment adjustment system of the present invention;

[0058] Figure 5 A schematic flow chart of an embodiment of a control method for an environmental conditioning system of the present invention;

[0059] Figure 6 A flow chart of another embodiment of a control method for an environmental conditioning system of the present invention;

[0060] Figure 7 A schematic flow chart of another embodiment of the control method of the environment adjustment system of the present invention;

[0061] Figure 8 The figure is a flow chart of another embodiment of the control method of the environmental conditioning system of the present invention.

[0062] Description of Figure Numbers:

[0063] Label name Label name 1 Heat Pump System 3 The first heat exchange device 11 Heat pump temperature control device 33 Mixing chamber 12 Indoor terminal equipment 4 Liquid supply module 13 First fluid pump 41 Liquid inlet pipe 14 First fluid regulating assembly 42 Liquid outlet pipe 15 Refrigerant branch 43 The second heat exchange device 16 Convection heat exchange device 431 Second cavity 2 Gas system 432 Second coil 21 Gas Heating Device 8 Host 22 Second fluid pump 9 Integrated modules

[0064] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0065] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0066] The present invention provides an environment adjustment system.

[0067] In the embodiment of the present invention, refer to Figures 1 to 4 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, 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 first heat exchange device 3.

[0068] The coolant filled in the first coolant circulation loop and the second coolant circulation loop is water. In other embodiments, the first coolant circulation loop and / or the second coolant circulation loop are also other types of coolants, such as sodium chloride or calcium chloride salt solution, or an aqueous solution of an organic compound such as ethylene glycol or glycerol, etc.

[0069] The heat pump temperature control device 11 is a device for adjusting the temperature of the refrigerant using the energy output by the heat pump unit. The heat pump temperature control device 11 can be used for heat exchange connection with the heat exchange part that releases cold or heat in the heat pump unit. When the heat pump system 1 is turned on, when the heat pump temperature control device 11 is in the heating state, the temperature of the refrigerant in the first refrigerant circulation loop can be increased; when the heat pump temperature control device 11 is in the cooling state, the temperature of the refrigerant in the first refrigerant circulation loop can be reduced.

[0070] 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, and the like.

[0071] The number of indoor terminal devices 12 may be one or more than one, and more than one indoor terminal devices 12 may be respectively arranged in different indoor spaces, and the types of indoor terminal devices 12 in different indoor spaces may be the same or different. When the number of indoor terminal devices 12 is more than one, the refrigerant flow path where the heat pump temperature regulating device 11 and the first heat exchange device 3 are located is defined as the main path, and more than one indoor terminal devices 12 may be connected to the main path through the manifold 7 or the hydraulic balance distributor to realize the control of the on-off of the flow paths of each terminal device.

[0072] 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.

[0073] In this 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 among the heat pump temperature control device 11, the first heat exchange device 3 and the indoor terminal equipment 12.

[0074] In some embodiments, the heat pump temperature control device 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 temperature control device 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 temperature control device 11 are connected in sequence, and the brine in the first brine circulation loop may circulate between the heat pump temperature control device 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, and the more than one sub-loops are heat exchange connected, and the more than one sub-loops include a first sub-loop and a second sub-loop. The heat pump temperature control device 11 may be provided in the first sub-loop, and the indoor terminal device 12 may be provided in the second sub-loop. The first sub-loop and the second sub-loop may be directly heat exchange connected or heat exchange connected through other sub-loops.

[0075] The gas heating device 21 has a refrigerant 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 refrigerant in the second refrigerant circulation loop can circulate between the gas heating device 21 and the first heat exchange device 3. The refrigerant heated by the gas heating device 21 can flow into the first heat exchange device 3 to exchange heat with the first circulation loop, and the refrigerant after heat exchange can flow back to the gas heating device 21 to exchange heat again.

[0076] Based on the above settings, the operating states of the environmental control system include but are not limited to the following:

[0077] In the first state, the heat pump system 1 operates in a cooling mode, and the gas system 2 is turned off. The heat pump temperature control device 11 is in a cooling state and 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.

[0078] 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 heating mode 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.

[0079] In the third state, the heat pump system 1 runs 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 supplemented 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 supplemented 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 the gas at the same time, and use it to increase the temperature of the indoor space.

[0080] The technical solution of the present invention 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 provides heat to the indoor terminal device 12 through the circulating refrigerant, when the heat is insufficient, 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, the heat can be supplemented for 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 ensure the comfort of indoor heating while improving the energy-saving and low-carbon effect. In addition, in addition to indoor heating, it can also meet the indoor cooling needs to effectively improve indoor comfort.

[0081] Furthermore, 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. When the second fluid pump 22 is turned on, it can drive the refrigerant to circulate in the second refrigerant circulation loop.

[0082] Furthermore, in one embodiment, the first heat exchange device 3 includes a first cavity and a first coil arranged in the first cavity, the first coil 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.

[0083] In this embodiment, the first heat exchange device 3 is specifically an inner coil water tank.

[0084] The first cavity has a first inlet and a first outlet, and 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. Based on this, the refrigerant flowing out of the heat pump thermostat 11 can flow into the first cavity to exchange heat with the first coil, and the refrigerant after heat exchange can flow into the indoor terminal device 12 for heat exchange, and the refrigerant after heat exchange in the indoor terminal device 12 flows back to the heat pump thermostat 11 for re-temperature adjustment.

[0085] The first coil has a second inlet and a second outlet, and the gas heating device 21 has a refrigerant flow path, one end of the refrigerant flow path is connected to the second inlet of the first heat exchange device 3, and the other end of the refrigerant flow path is connected to the second outlet of the first heat exchange device 3. Based on this, the refrigerant heated by the gas heating device 21 can flow into the first coil to exchange heat with the refrigerant in the first cavity, and the refrigerant after heat exchange can flow back to the gas heating device 21 for reheating.

[0086] In this 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.

[0087] 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, and the gas heating device 21 is connected to the first cavity.

[0088] Further, in one embodiment, referring to Figures 1 to 3 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 equipment 12 and the gas heating device 21 are both connected to the liquid mixing chamber 33 .

[0089] In this embodiment, the first heat exchange device 3 is specifically a coupling tank.

[0090] In this embodiment, through the setting 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.

[0091] Further, in one embodiment, referring to Figures 1 to 3 The environmental conditioning system further includes a liquid supply module 4, and the liquid supply module 4 is heat exchange connected to the first refrigerant circulation loop or the second refrigerant circulation loop.

[0092] In this 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.

[0093] 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 can be used to increase the temperature of the liquid in the liquid supply module 4 in addition to being used to increase the temperature of the space where the indoor terminal device 12 is located. When the heat pump system 1 operates in the cooling mode, the coldness of the refrigerant in the first refrigerant circulation gourd can be used to reduce the temperature of the liquid in the liquid supply module 4 in addition to being used to reduce the temperature of the space where the indoor terminal device 12 is located.

[0094] 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.

[0095] In this embodiment, through the above method, the environmental adjustment system can not only adjust the indoor environmental temperature, but also meet the user's liquid supply needs.

[0096] Further, in one embodiment, referring to Figures 1 to 3 The first refrigerant flow path further includes a first fluid regulating component 14 and a refrigerant branch 15, the liquid supply module 4 is connected to the refrigerant branch 15 for heat exchange, the refrigerant branch 15 and the indoor terminal device 12 are both connected to the heat pump temperature regulating device 11, and the heat pump temperature regulating device 11 is connected to the inlet of the first heat exchange device 3;

[0097] 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.

[0098] In one implementation of this embodiment, the first fluid regulating component 14 is a fluid switching component, which 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 component 14 can be a three-way valve, and the three-way valve has 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, and 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 component 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.

[0099] In another implementation of this embodiment, the first fluid regulating component 14 may be a fluid proportional valve, which can 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 .

[0100] 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 .

[0101] In this embodiment, through the above-mentioned method, when the heat pump system 1 starts the heating mode and the gas system 2 starts the supplementary heating mode, it can be realized that when the liquid in the liquid supply module 4 needs to be heated, the heat provided by the heat pump system 1 and the heat provided by the gas system 2 can be used for heating at the same time, so as to effectively improve the heating efficiency of the liquid supply module 4 and improve the energy-saving and low-carbon effect. When the heat pump system 1 starts the cooling mode and the gas system 2 stops the non-heating mode, it can be realized that the liquid in the liquid supply module 4 can be cooled in addition to heating to meet the diverse liquid supply needs of users.

[0102] In other embodiments, the refrigerant branch 15 may also be connected in parallel with the heat pump temperature control device 11 or the first heat exchange device 3 .

[0103] Further, in one embodiment, referring to Figures 1 to 3 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 .

[0104] In this embodiment, the brine loaded in the first brine circulation loop and the liquid in the liquid supply module 4 are the same liquid, for example, both are water. In other embodiments, the brine loaded in the first brine circulation loop and the liquid in the liquid supply module 4 may also be different liquids, for example, the first brine circulation loop contains an ethanol solution and the liquid supply module 4 contains water.

[0105] In one implementation of this embodiment, the second heat exchange device 43 includes a second cavity 431 and a second coil 432 disposed in the second cavity 431, the brine branch 15 includes the second coil 432, and the liquid inlet pipe 41 and the liquid outlet pipe 42 are both 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 in the second cavity 431, and the liquid flowing into the liquid inlet pipe 41 can flow into the second cavity 431 to absorb the energy in the brine in the second coil 432 and then flow out from the liquid outlet pipe 42 for use by the user.

[0106] In another implementation of this embodiment, 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.

[0107] Furthermore, 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.

[0108] The refrigerant circulation circuit is filled with refrigerant, such as fluorine.

[0109] 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.

[0110] In one embodiment, the exhaust port of the compressor, the first heat exchange part, the throttling device, the second heat exchange part and the return air port of the compressor are connected in sequence. When the compressor is turned on, the heat pump system 1 is in a heating mode, and the refrigerant discharged from the compressor flows through the first heat exchange part, the throttling device, and the second heat exchange part in sequence before flowing back to the compressor. The first heat exchange part is in a condensing state, and the second heat exchange part is in an evaporating state.

[0111] In another embodiment, the refrigerant circulation loop further includes a reversing component, and the exhaust port of the compressor, the return air port of the compressor, the first heat exchange part, and the second heat exchange part are all connected to the reversing component. The reversing component has a first position state and a second position state, and the exhaust port corresponding to the first position state is connected to the first heat exchange part, and the return air port is connected to the second heat exchange part; the exhaust port corresponding to the second position state is connected to the second heat exchange part, and the return air port is connected to the first heat exchange part. In this embodiment, when the compressor is turned on, the reversing component operates in the first position state, the heat pump system 1 is in the heating mode, and the refrigerant discharged from the compressor flows through the first heat exchange part, the throttling device, and the second heat exchange part in sequence and then flows back to the compressor, the first heat exchange part is in the condensing state, and the second heat exchange part is in the evaporating state. When the compressor is turned on, the reversing component operates in the second position state, the heat pump system 1 is in the cooling mode, and the refrigerant discharged from the compressor flows through the second heat exchange part, the throttling device, and the first heat exchange part in sequence and then flows back to the compressor, the first heat exchange part is in the evaporating state, and the second heat exchange part is in the condensing state.

[0112] In this embodiment, through the above arrangement, the energy in the refrigerant can be applied to the environment regulation 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.

[0113] 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.

[0114] Further, in one embodiment, referring to Figures 2 to 3 The refrigerant circulation loop also includes a convection heat exchange device 16.

[0115] In this embodiment, the convection heat exchange device 16 includes a duct machine or the like.

[0116] The number of the convection heat exchange device 16 may be one or more than one. More than one convection heat exchange device 16 may be connected in parallel. The convection heat exchange device 16 may be arranged in an indoor space, and different convection heat exchange devices 16 may be arranged in different indoor spaces. The convection heat exchange device 16 and the indoor terminal device 12 may be arranged in the same indoor space.

[0117] In one implementation, the convective heat exchange device 16 is connected in parallel with the first heat exchange part. In another implementation, the convective heat exchange device 16 may also be the second heat exchange part mentioned above.

[0118] In this embodiment, a convection heat exchange device 16 is also provided in the refrigerant circulation loop, which is conducive to increasing the diversity of indoor space temperature regulation methods. Among them, when the convection heat exchange device 16 is the above-mentioned second heat exchange part, the environmental regulation system is turned on, the convection heat exchange device 16 is in an evaporation state and the first heat exchange part is in a condensation state, when the first fluid pump 13 on the first refrigerant circulation loop is turned off, the convection heat exchange device 16 can be used for indoor space cooling when it is turned on; when the first fluid pump 13 on the first refrigerant circulation loop is turned on, the indoor terminal device 12 can be used for heating the indoor space when the convection heat exchange device 16 is turned off, thereby realizing cooling and heating of the indoor space through different terminals.

[0119] Furthermore, in one embodiment, Figures 1 to 3 , 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;

[0120] 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.

[0121] In this embodiment, the host 8 may be located in an outdoor environment.

[0122] The convection heat exchange device 16 is disposed 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 disposed inside the main unit 8.

[0123] The integrated module 9 can be produced independently as a hydraulic module.

[0124] In this 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 to improve the quality of components, so as to effectively improve the stability of system operation.

[0125] Furthermore, in one embodiment, the heat pump system 1 includes at least two hosts 8. Based on this, it is beneficial to improve the output capacity of the environmental conditioning system, so as to provide more indoor terminal devices 12 with energy for regulating the indoor environment or provide more energy for regulating the indoor environment for the indoor terminal devices 12, thereby further improving the comfort of indoor environmental conditioning.

[0126] Further, in one embodiment, referring to Figure 4The environment adjustment system further includes an environment detection module 01 connected to the control device 100. The environment detection module 01 is arranged in the environment where the environment adjustment system is located to detect the environment temperature. In this embodiment, the environment detection module 01 is arranged in the outdoor environment to detect the outdoor environment temperature.

[0127] Further, in one embodiment, referring to Figure 4 The environment conditioning system further includes a first liquid temperature sensor 02 connected to the control device 100. The first liquid temperature sensor 02 is disposed at the inlet side of the indoor terminal device 12 to detect the inlet liquid temperature of the indoor terminal device 12.

[0128] Further, in one embodiment, referring to Figure 4 The environment adjustment system further includes a second temperature sensor 03 connected to the control device 100. The second temperature sensor 03 is disposed in the liquid supply module 4 (eg, in the second cavity mentioned above) to detect the liquid temperature of the liquid supply module 4.

[0129] In the embodiment of the present invention, refer to Figure 4 The control device 100 of the environmental conditioning system includes: a processor 1001, such as a CPU, a memory 1002, and a timer 1003. Among them, these components are connected and communicated through a communication bus. The memory 1002 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0130] Those skilled in the art will understand that Figure 4 The device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0131] like Figure 4 As shown, the memory 1002 as a computer storage medium may include a control program of the environmental conditioning system.

[0132] exist Figure 4 In the device shown, the processor 1001 can be used to call the control program of the environmental adjustment system stored in the memory 1002 and execute the relevant step operations of the control method of the environmental adjustment system in the following embodiments.

[0133] An embodiment of the present invention further provides a control method for an environmental adjustment system, which is applied to the above environmental adjustment system.

[0134] Reference Figure 5, an embodiment of a control method of the environment adjustment system of the present application is proposed. In this embodiment, the control method of the environment adjustment system includes:

[0135] Step S10, obtaining demand information, wherein the demand information indicates the heating demand state of the liquid supply module and / or the indoor terminal device;

[0136] The demand information may include whether the liquid supply module has a heating demand, and / or whether the indoor terminal device has a heating demand, and / or the relationship between the heating demand of the liquid supply module and the heating demand of the indoor terminal device.

[0137] The demand information can be determined by obtaining user instructions, or can be determined based on the monitoring status of the liquid supply module and the monitoring status of the environment where the indoor terminal device is located.

[0138] When the heat pump system is in a stopped state, or when the heat pump system is operating in a heating mode, or when the heat pump system is operating in a cooling mode, step S10 is performed.

[0139] Step S20, controlling the fluid regulating component to operate according to the demand information;

[0140] The fluid regulating assembly here is specifically the first fluid regulating assembly mentioned above.

[0141] The fluid regulating component can be used to select the target flow path for the refrigerant to flow into between the indoor terminal device and the heat exchange branch, or the fluid regulating component can be used to adjust the ratio of the refrigerant flowing into the indoor terminal device and the refrigerant branch.

[0142] Different demand information corresponds to different operation control parameters of the fluid regulating components.

[0143] In one implementation, a target operating state of the fluid regulating component is selected between the first operating state and the second operating state according to demand information, and the fluid regulating component is controlled to operate in the target state. The refrigerant corresponding to the first operating state flows into the refrigerant branch and is prohibited from flowing into the indoor terminal device, and the refrigerant corresponding to the second operating state flows into the indoor terminal device and is prohibited from flowing into the heat exchange branch.

[0144] In another implementation, a first refrigerant flow rate flowing into the indoor terminal device and a second refrigerant flow rate flowing into the refrigerant branch are determined according to demand information, and the operation of the fluid regulating component is controlled according to the first refrigerant flow rate and the second refrigerant flow rate.

[0145] Step S30, when the heat pump system operates in a heating mode, obtaining state parameters of the heat pump system;

[0146] When the heat pump system is in heating mode, the heat pump temperature regulating device is in a temperature-raising state, and the temperature of the refrigerant flowing through the heat pump temperature regulating device 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 temperature regulating device, the first heat exchange device and the indoor terminal equipment.

[0147] When the indoor terminal device has a heating demand, the state parameter may include a first operating state parameter of the indoor terminal device itself and / or a first environmental parameter of the environment where the indoor terminal device is located. The first operating state parameter may include at least one of the following parameters: the inlet temperature of the indoor terminal device, the surface temperature of the indoor terminal device, the outlet temperature of the indoor terminal device, etc. The first environmental parameter includes at least one of the following parameters: indoor ambient temperature, outdoor ambient temperature, indoor temperature change value, etc.

[0148] When the liquid supply module has a heating demand, the state parameter may include a second operating state parameter of the liquid supply module itself and / or a second environmental parameter of the environment where the liquid supply module is located. The second operating state parameter may include at least one of the following parameters: the internal temperature of the liquid supply module, the inlet and outlet temperature difference of the liquid supply module, etc. The second environmental parameter includes at least one of the following parameters: indoor ambient temperature, outdoor ambient temperature, indoor temperature change value, etc.

[0149] Step S40, when the state parameter satisfies the preset condition that the heat pump system is insufficient in heat supply, the gas system is controlled to start a supplementary heat mode to supplement heat for the heat pump system.

[0150] Insufficient heat supply of the heat pump system means that the heat currently provided by the heat pump system does not reach the target heat required to meet the liquid supply demand and / or indoor heating demand.

[0151] 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.

[0152] 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 the heat exchange can flow into the indoor terminal equipment and / or the refrigerant branch to meet the indoor heating demand and / or the heating demand of the liquid supply module.

[0153] In this 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.

[0154] During the process of starting the supplementary heating mode, the gas heating device can operate at a fixed heating power, or it can be controlled to operate at a control parameter determined by the actual state parameters of the environmental regulation system. The second fluid pump can operate at a fixed speed, or it can be controlled to operate at a speed determined by the actual state parameters of the environmental regulation system (e.g., the state parameters of the indoor terminal equipment and / or the device in the liquid supply module that currently has a heating demand, etc.).

[0155] Furthermore, after step S40, the process may return to step S10.

[0156] A control method for an environmental conditioning system proposed in an embodiment of the present invention is adapted to adjust the operation of a fluid regulating component according to the heating demand of a liquid supply module and / or an indoor terminal device, thereby achieving that the energy of a heat pump temperature regulating device can be provided to the liquid supply module and / or the indoor terminal device according to demand. On this basis, when the heat pump system is running in a heating mode and it is determined through state parameters that the heat supply is insufficient, the gas system is controlled to start a supplementary heating mode to supplement heat for the heat pump system, thereby ensuring that the environmental conditioning system has sufficient heat to meet the corresponding heating demand regardless of whether it has indoor heating demand or liquid supply heating demand. In this process, the gas system is only used when the heat pump system is insufficient in heat, so as to effectively reduce the use of gas resources and ensure that the utilization rate of the energy-saving and low-carbon capacity of the heat pump system is effectively improved, thereby ensuring that the system takes into account both indoor heating comfort and liquid supply heating demand while improving energy-saving and low-carbon effects.

[0157] Further, in one embodiment, when the liquid supply module has a heating demand, the state parameter includes the ambient temperature and the first liquid temperature of the liquid supply module, and the preset condition includes at least one of the following conditions:

[0158] The ambient temperature is less than or equal to a first preset temperature;

[0159] A temperature difference between a set temperature of the liquid supply module and the first liquid temperature is greater than or equal to a first preset value.

[0160] The first liquid temperature is the liquid temperature of the target area in the liquid supply module, and the target area is the area in the liquid supply module that exchanges heat with the coolant branch. In this embodiment, the liquid supply module includes the above-mentioned second heat exchange device, and the target area is the above-mentioned second cavity. In other embodiments, the first liquid temperature can also be the liquid inlet temperature or liquid outlet temperature of the liquid supply module.

[0161] In this embodiment, the ambient temperature is the outdoor ambient temperature. In other embodiments, the ambient temperature may also be the indoor ambient temperature.

[0162] The set temperature of the liquid supply module is specifically a preset target value of the outlet water temperature of the liquid supply module.

[0163] The temperature difference value here is a calculation result obtained by subtracting the first liquid temperature from the set temperature of the liquid supply module.

[0164] In this embodiment, when the ambient temperature is too low and / or the first liquid temperature is much lower than the set temperature of the liquid supply module, it indicates that the heat pump system alone does not provide enough heat for the liquid supply module and cannot meet the liquid supply demand. At this time, the heating mode of the gas system is promptly turned on to supplement heat for the heat pump system through the gas system, so as to effectively improve the heating efficiency of the liquid supply module.

[0165] Further, in one embodiment, when the liquid supply module does not have a heating demand and the indoor terminal device has a heating demand, the state parameter includes the ambient temperature and the first liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0166] The ambient temperature is less than or equal to a second preset temperature;

[0167] The temperature difference between the set temperature of the indoor terminal device and the first liquid inlet temperature is greater than or equal to a second preset value.

[0168] In this embodiment, the ambient temperature is the outdoor ambient temperature. In other embodiments, the ambient temperature may also be the indoor ambient temperature.

[0169] The set temperature of the indoor terminal device is specifically a pre-set target value of the liquid inlet temperature when the indoor terminal device meets the indoor heating comfort.

[0170] The temperature difference here is the calculated result of subtracting the first liquid inlet temperature from the set temperature of the indoor terminal device.

[0171] In this embodiment, when the ambient temperature is too low and / or the inlet temperature of the indoor terminal device is much lower than the set temperature, it indicates that the heat pump system alone does not provide enough heat for the indoor terminal device and cannot meet the indoor heating comfort. At this time, the heating supplement mode of the gas system is promptly turned on to supplement heat for the heat pump system through the gas system, so as to effectively improve the indoor heating comfort.

[0172] Further, based on the above embodiment, another embodiment of the control method of the environmental adjustment system of the present application is proposed. Figure 6 , the step S20 comprises:

[0173] Step S21, when the liquid supply module has a heating demand, controlling the fluid regulating assembly to operate in a first operating state so that the outlet of the first heat exchange device is connected to the refrigerant branch;

[0174] Step S22: When the liquid supply module has no heating demand, the fluid regulating assembly is controlled to operate in a second operating state so that the outlet of the first heat exchange device is connected to the indoor terminal device.

[0175] Here, the liquid supply module has a heating demand, which includes at least one of the following situations: the liquid supply module has a heating demand and the indoor terminal device has a heating demand, the liquid supply module has a heating demand and the indoor terminal device has a cooling demand, the liquid supply module has a heating demand and the indoor terminal device does not have a heat exchange demand, and so on.

[0176] Here, the liquid supply module has no heating demand, which includes at least one of the following situations: the liquid supply module has no heating demand and the indoor terminal device has a heating demand, the liquid supply module has no heating demand and the indoor terminal device has a cooling demand, the liquid supply module has no heating demand and the indoor terminal device has no heat exchange demand, and so on.

[0177] In this embodiment, the fluid regulating component is a three-way valve, which has a first valve position and a second valve position. The first valve position corresponds to the first heat exchange device being connected to the indoor terminal equipment, and the first heat exchange device being blocked from the refrigerant branch, and the second valve position corresponds to the first heat exchange device being connected to the refrigerant branch, and the first heat exchange device being blocked from the indoor terminal equipment.

[0178] In this embodiment, through the above method, it can be ensured that when the liquid supply module has a heating demand, the liquid supply demand can be met first, and when the liquid supply module does not have a heating demand, the indoor cooling or heating demand can be met, thereby achieving an effective balance between the instant heating demand of the liquid supply and the indoor comfort.

[0179] In other embodiments, the fluid regulating component may include a first control valve provided in the branch where the indoor terminal device is located and a second control valve provided in the refrigerant branch. When the liquid supply module has a heating demand, the first control valve is closed and the second control valve is opened; when the liquid supply module does not have a heating demand, the first control valve is opened and the second control valve is closed.

[0180] Furthermore, in this embodiment, after step S40, it also includes: when the fluid regulating component is operating in the first operating state, obtaining the third liquid temperature of the liquid supply module; when the third liquid temperature is greater than or equal to the set temperature of the liquid supply module, controlling the gas system to stop the heat supplement mode; wherein, in the first operating state, the outlet of the first heat exchange device is connected to the refrigerant branch.

[0181] The third liquid temperature is the liquid temperature of the target area in the liquid supply module, and the target area is the area in the liquid supply module that exchanges heat with the coolant branch. In this embodiment, the liquid supply module includes the above-mentioned second heat exchange device, and the target area is the above-mentioned second cavity. In other embodiments, the third liquid temperature can also be the liquid inlet temperature or liquid outlet temperature of the liquid supply module.

[0182] In this embodiment, stopping the supplementary heat mode includes shutting down the gas heating device in the gas system and shutting down the second fluid pump. Alternatively, when the gas system further includes a liquid supply module, during the process of stopping the supplementary heat mode, when the liquid supply module has a liquid supply heating demand, the gas heating device can remain turned on, but the second fluid pump can be shut down.

[0183] In this embodiment, the third liquid temperature is greater than or equal to the set temperature of the liquid supply module, indicating that the heat input by the liquid supply module has met the heating demand of its liquid supply. At this time, the gas system stops the heat supplement mode, thereby avoiding the liquid supply temperature of the liquid supply module from being too high, accurately meeting the liquid supply demand while reducing unnecessary fuel consumption of the gas system, so as to further achieve energy conservation and emission reduction.

[0184] Furthermore, in this embodiment, when the third liquid temperature is greater than or equal to the set temperature of the liquid supply module, after the step of controlling the gas system to stop the supplementary heat mode, it also includes: controlling the fluid regulating component to operate in a second operating state, and controlling the operation of the environmental conditioning system according to the heat exchange demand of the indoor terminal device; wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal device.

[0185] When the indoor terminal equipment has a cooling demand, the heat pump system is controlled to operate in the cooling mode; when the indoor terminal equipment has a heating demand, the heat pump system is controlled to operate in the heating mode, or the heat pump system is controlled to operate in the heating mode and the gas system is controlled to operate in the supplementary heating mode.

[0186] In this embodiment, the heat of the environmental conditioning system first meets the heat demand of the liquid supply module and then meets the temperature regulation demand of the indoor environment, thereby achieving an effective balance between the heat demand of the liquid supply module and the comfort of the indoor environment.

[0187] Furthermore, in this embodiment, after step S40, it also includes: when the fluid regulating component is operating in the second operating state, obtaining the second liquid inlet temperature of the indoor terminal device; when the second liquid inlet temperature is greater than or equal to the set temperature of the indoor terminal device, controlling the gas system to stop the supplementary heat mode; wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal device.

[0188] In this embodiment, stopping the supplementary heat mode includes shutting down the gas heating device in the gas system and shutting down the second fluid pump. Alternatively, when the gas system further includes a liquid supply module, during the process of stopping the supplementary heat mode, when the liquid supply module has a liquid supply heating demand, the gas heating device can remain turned on, but the second fluid pump can be shut down.

[0189] In this embodiment, the liquid inlet temperature of the indoor terminal device is greater than or equal to the set temperature of the indoor terminal device, indicating that the heat input by the indoor terminal device has met its indoor heating comfort needs. At this time, the gas system stops the heating supplement mode, thereby avoiding the liquid supply temperature of the indoor terminal device being too high, accurately meeting the indoor heating comfort while reducing unnecessary fuel consumption of the gas system, so as to further achieve energy conservation and emission reduction.

[0190] Further, based on any of the above embodiments, another embodiment of the control method of the environmental conditioning system of the present application is proposed. In this embodiment, the second coolant circulation loop includes a gas heating device, referring to Figure 7 , when the state parameter satisfies the preset condition that the heat pump system is insufficient in heat supply, after the step of controlling the gas system to start the heat supplement mode to supplement heat to the heat pump system, it also includes:

[0191] Step S41, obtaining the second liquid temperature of the liquid supply module;

[0192] The second liquid temperature is the liquid temperature of the target area in the liquid supply module, and the target area is the area in the liquid supply module that exchanges heat with the coolant branch. In this embodiment, the liquid supply module includes the above-mentioned second heat exchange device, and the target area is the above-mentioned second cavity. In other embodiments, the second liquid temperature can also be the liquid inlet temperature or liquid outlet temperature of the liquid supply module.

[0193] Step S42, determining a first target operating temperature of the gas heating device according to the second liquid temperature;

[0194] In this embodiment, the first target operating temperature is a target value of the liquid outlet temperature of the gas heating device.

[0195] Different second liquid temperatures correspond to different first target operating temperatures. Specifically, a correspondence between the second liquid temperature and the first target operating temperature can be established in advance. The correspondence can include a mapping relationship, a calculation formula, etc. Based on the correspondence, the first target operating temperature corresponding to the current second liquid temperature can be determined. For example, the temperature range in which the second liquid temperature is located can be determined, and the first target operating temperature can be determined based on the temperature range; for another example, the second liquid temperature can be substituted into a preset relationship to calculate the first target operating temperature; for another example, the second liquid temperature can be queried in a mapping table to match the first target operating temperature.

[0196] Step S43: controlling the operation of the gas heating device according to the first target operating temperature.

[0197] In one implementation, the first target operating temperature may be substituted into a formula or a table to obtain a heating control parameter of the gas heating device, and the operation of the gas heating device may be controlled according to the heating control parameter.

[0198] In another implementation, the actual operating temperature of the gas heating device can be obtained, and the heating control parameters of the gas heating device can be determined based on the size relationship, difference or ratio between the actual operating temperature and the first target operating temperature, and the operation of the gas heating device can be controlled according to the determined heating control parameters.

[0199] For example, when the actual working temperature is greater than the first target working temperature, the gas heating device can be controlled to reduce the heating power; when the actual working temperature is less than the first target working temperature, the gas heating device can be controlled to increase the heating power.

[0200] For another example, the temperature difference between the actual working temperature and the first target working 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.

[0201] In this embodiment, the target operating temperature of the gas heating device is determined according to the liquid temperature of the liquid supply module, which helps to ensure that the gas heating device can supplement sufficient heat for the heat pump system to meet the heating demand of the liquid supply module.

[0202] Furthermore, in one embodiment, step S42 includes: determining a first temperature difference between the set temperature of the liquid supply module and the second liquid temperature, and determining a first correction coefficient according to the second temperature difference in the liquid supply module; correcting the first temperature difference according to the first correction coefficient to obtain a first temperature correction value; increasing the set temperature of the liquid supply module according to the first temperature correction value and the heat transfer temperature difference of the gas heating device to obtain the first target operating temperature.

[0203] The first temperature difference value is specifically a calculation result obtained by subtracting the second liquid temperature from the set temperature of the liquid supply module.

[0204] The second temperature difference here is specifically the temperature difference of the liquid at different positions in the target area in the liquid supply module, and the target area is the area in the liquid supply module that exchanges heat with the refrigerant branch. In the present embodiment, the liquid supply module includes the above-mentioned second heat exchange device, and the target area is the above-mentioned second cavity. Due to the heat stratification, the temperatures at different positions in the target area are different. Based on this, the temperatures corresponding to at least two sub-positions in the target area can be obtained, and the second temperature difference here is determined according to the difference between at least two temperatures. In the present embodiment, the target area is the above-mentioned second cavity, and the upper liquid temperature in the second cavity and the lower liquid temperature in the second cavity can be obtained, and the temperature difference between the upper liquid temperature and the lower liquid temperature is used as the second temperature difference here. In other embodiments, the temperature difference between the inlet temperature and the outlet temperature of the liquid supply module can also be used as the second temperature difference.

[0205] Different second temperature difference values ​​correspond to different first correction coefficients, and the first correction coefficient is positively correlated with the second temperature difference value.

[0206] In this embodiment, the first temperature correction value is less than or equal to the first temperature difference value. In one implementation, the product of the first correction coefficient and the first temperature difference value is used as the first temperature correction value, wherein the value range of the first correction coefficient is [0,1]. In another implementation, the difference between the first temperature difference value and the first correction coefficient can also be used as the first temperature correction value.

[0207] The heat transfer temperature difference value is specifically the deviation value between the target operating temperature of the gas heating device and the actual operating temperature achieved. The heat transfer temperature difference value may be a preset fixed parameter, or the heat transfer temperature difference value may be determined according to the environmental parameters of the environment in which the gas heating device is located, the gas type of the gas heating device, and the start-up time of the gas heating device.

[0208] In this embodiment, the sum of the first temperature correction value, the heat transfer temperature difference value and the set temperature of the liquid supply module is used as the first target operating temperature. In other embodiments, the amplification ratio is also determined according to the first temperature correction value and the heat transfer temperature difference value, and the product of the amplification ratio and the set temperature of the liquid supply module is used as the first target operating temperature.

[0209] For better understanding, the relationship between the above parameters and the first target operating temperature is explained in combination with a formula below: Trs=Tks+△Tr+k2*(Tks-Tk), wherein Trs is the first target operating temperature, Tks is the set temperature of the liquid supply module, △Tr is the heat transfer temperature difference, k2 is the first correction coefficient, (Tks-Tk) is the first temperature difference, and k2*(Tks-Tk) is the first temperature correction value.

[0210] In this embodiment, determining the first target operating temperature in the above manner is conducive to ensuring that the first target operating temperature is not too high or too low, thereby accurately meeting the heating demand of the liquid supply module while improving energy conservation and emission reduction effects.

[0211] Further, based on any of the above embodiments, another embodiment of the control method of the environmental conditioning system of the present application is proposed. In this embodiment, the second coolant circulation loop includes a gas heating device, referring to Figure 8 , after step S40, further comprising:

[0212] Step S44, obtaining a second liquid inlet temperature of the indoor terminal device;

[0213] The second liquid inlet temperature is specifically the refrigerant temperature in the liquid inlet side pipeline of the indoor terminal device. In the present embodiment, it is the temperature of the refrigerant flowing out of the first outlet of the first heat exchange device.

[0214] Step S45, determining a second target operating temperature of the gas heating device according to the second liquid inlet temperature;

[0215] In this embodiment, the second target operating temperature is a target value of the liquid outlet temperature of the gas heating device.

[0216] Different second liquid temperatures correspond to different second target operating temperatures. Specifically, a correspondence between the second liquid temperature and the second target operating temperature can be established in advance. The correspondence can include a mapping relationship, a calculation formula, etc. Based on the correspondence, the second target operating temperature corresponding to the current second liquid temperature can be determined. For example, the temperature range in which the second liquid temperature is located can be determined, and the second target operating temperature can be determined based on the temperature range; for another example, the second liquid temperature can be substituted into a preset relationship to calculate the second target operating temperature; for another example, the second liquid temperature can be queried in a mapping table to match the second target operating temperature.

[0217] Step S46: controlling the operation of the gas heating device according to the second target operating temperature.

[0218] In one implementation, the second target operating temperature may be substituted into a formula or a table to obtain a heating control parameter of the gas heating device, and the operation of the gas heating device may be controlled according to the heating control parameter.

[0219] In another implementation, the actual operating temperature of the gas heating device can be obtained, and the heating control parameters of the gas heating device can be determined based on the size relationship, difference or ratio between the actual operating temperature and the second target operating temperature, and the operation of the gas heating device can be controlled according to the determined heating control parameters.

[0220] For example, when the actual operating temperature is greater than the second target operating temperature, the gas heating device can be controlled to reduce the heating power; when the actual operating temperature is less than the second target operating temperature, the gas heating device can be controlled to increase the heating power.

[0221] For another example, the temperature difference between the actual working temperature and the second target working 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.

[0222] In this embodiment, the target operating temperature of the gas heating device is determined according to the liquid inlet temperature of the indoor terminal device, which is conducive to ensuring that the gas heating device can supplement sufficient heat for the heat pump system to meet the indoor heating comfort demand.

[0223] Furthermore, in one embodiment, the step of determining the second target operating temperature of the gas heating device based on the second liquid inlet temperature includes: determining a third temperature difference between the second set temperature of the indoor terminal device and the second liquid inlet temperature, and determining a second correction coefficient based on a fourth temperature difference in the indoor terminal device; correcting the third temperature difference based on the second correction coefficient to obtain a second temperature correction value; and correcting the second set temperature based on the second temperature correction value and the heat transfer temperature difference of the gas heating device to obtain the second target operating temperature.

[0224] The third temperature difference value is specifically a calculation result obtained by subtracting the second liquid temperature from the set temperature of the liquid supply module.

[0225] The fourth temperature difference here is specifically the liquid temperature difference at different positions in the indoor terminal device. Since the temperatures at different positions in the heat stratification target area are different, based on this, the temperatures corresponding to at least two sub-positions in the indoor terminal device can be obtained, and the fourth temperature difference here can be determined according to the difference between the at least two temperatures. For example, the temperature difference between the inlet temperature and the outlet temperature of the indoor terminal device can be used as the fourth temperature difference.

[0226] Different fourth temperature difference values ​​correspond to different second correction coefficients, and the second correction coefficient is positively correlated with the fourth temperature difference value.

[0227] In this embodiment, the second temperature correction value is less than or equal to the third temperature difference value. In one implementation, the product of the second correction coefficient and the third temperature difference value is used as the second temperature correction value, wherein the value range of the second correction coefficient is [0,1]. In another implementation, the difference between the third temperature difference value and the second correction coefficient can also be used as the first temperature correction value.

[0228] The heat transfer temperature difference value is specifically the deviation value between the target operating temperature of the gas heating device and the actual operating temperature achieved. The heat transfer temperature difference value may be a preset fixed parameter, or the heat transfer temperature difference value may be determined according to the environmental parameters of the environment in which the gas heating device is located, the gas type of the gas heating device, and the start-up time of the gas heating device.

[0229] In this embodiment, the sum of the second temperature correction value, the heat transfer temperature difference value and the set temperature of the indoor terminal device is used as the second target operating temperature. In other embodiments, the amplification ratio is also determined according to the second temperature correction value and the heat transfer temperature difference value, and the product of the amplification ratio and the set temperature of the indoor terminal device is used as the second target operating temperature.

[0230] For better understanding, the relationship between the above parameters and the second target operating temperature is explained in combination with a formula below: Trs=Ts+△Tr+k1*(Ts-T1), wherein Trs is the second target operating temperature, Ts is the set temperature of the indoor terminal equipment, △Tr is the heat transfer temperature difference, k1 is the second correction coefficient, (Ts-T1) is the third temperature difference, and k1*(Ts-T1) is the second temperature correction value.

[0231] In this embodiment, determining the second target operating temperature in the above manner is conducive to ensuring that the second target operating temperature is not too high or too low, thereby accurately meeting the indoor heating demand while improving energy conservation and emission reduction effects.

[0232] Further, based on any of the above embodiments, after step S10 and before step S30, it also includes: when the liquid supply module has a heating demand and the indoor terminal device does not have a heating demand, controlling the heat pump system to operate in a heating mode; when the liquid supply module has a heating demand and the indoor terminal device has a heating demand, controlling the heat pump system to operate in a heating mode; when the liquid supply module does not have a heating demand and the indoor terminal device has a heating demand, controlling the heat pump system to operate in a heating mode; when both the liquid supply module and the indoor terminal device have no heating demand, returning to execute the step of obtaining the demand information of the liquid supply module.

[0233] Here, the indoor terminal device having no heating demand may include that the indoor terminal device has a cooling demand or has no heat exchange demand.

[0234] In this embodiment, when the liquid supply module has a heating demand, even if the indoor terminal equipment does not have a heating demand, the heat pump system operates in heating mode, which is conducive to ensuring that the instant heating demand of the liquid supply module is met; when the liquid supply module has no heating demand, it operates according to the demand of the indoor terminal equipment, thereby achieving an effective balance between the instant heating demand of the liquid supply and the indoor heating demand.

[0235] In addition, an embodiment of the present invention further 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.

[0236] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0237] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0238] 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 a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention 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 a terminal device (which can be a mobile phone, a computer, a server, an environmental conditioning system, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0239] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A control method for an environmental conditioning system, characterized in that: The environmental conditioning system comprises a first heat exchange device, a heat pump system, a gas system and a liquid supply module, the heat pump system comprises a first refrigerant circulation loop, the first refrigerant circulation loop comprises a heat pump temperature control device, an indoor terminal device, a refrigerant branch and a fluid regulating component, the refrigerant branch is heat exchange connected with the liquid supply module, the gas system comprises a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected with the first heat exchange device, the fluid regulating component is used to adjust the amount of refrigerant flowing out of the first heat exchange device to the refrigerant branch and / or the indoor terminal device, the control method of the environmental conditioning system comprises the following steps: Acquiring demand information, wherein the demand information includes a heating demand state of the liquid supply module and / or the indoor terminal device; Controlling the operation of the fluid regulating component according to the demand information; When the heat pump system operates in a heating mode, obtaining state parameters of the heat pump system; When the state parameter satisfies a preset condition that the heat pump system is insufficiently supplying heat, the gas system is controlled to start a heat supplement mode to supplement heat for the heat pump system.

2. The control method of the environmental conditioning system according to claim 1, characterized in that: The step of controlling the operation of the fluid regulating component according to the demand information comprises: When the liquid supply module has a heating demand, the fluid regulating assembly is controlled to operate in a first operating state so that the outlet of the first heat exchange device is connected to the refrigerant branch; When the liquid supply module has no heating demand, the fluid regulating assembly is controlled to operate in a second operating state so that the outlet of the first heat exchange device is communicated with the indoor terminal equipment.

3. The control method of the environmental conditioning system according to claim 1, characterized in that: The second refrigerant circulation loop includes a gas heating device, and after the step of controlling the gas system to start a heat supplement mode to supplement heat to the heat pump system, the step further includes: Acquiring a second liquid temperature of the liquid supply module; determining a first target operating temperature of the gas heating device according to the second liquid temperature; The gas heating device is controlled to operate according to the first target operating temperature.

4. The control method of the environmental conditioning system according to claim 3, characterized in that: The step of determining the first target operating temperature of the gas heating device according to the second liquid temperature comprises: Determine a first temperature difference between a set temperature of the liquid supply module and a temperature of the second liquid, and determine a first correction coefficient according to the second temperature difference in the liquid supply module; Correct the first temperature difference value according to the first correction coefficient to obtain a first temperature correction value; The set temperature of the liquid supply module is increased according to the first temperature correction value and the heat transfer temperature difference value of the gas heating device to obtain the first target operating temperature.

5. The control method of the environmental conditioning system according to claim 1, characterized in that: The second refrigerant circulation loop includes a gas heating device, and after the step of controlling the gas system to start a heat supplement mode to supplement heat to the heat pump system, the step further includes: Acquire a second liquid inlet temperature of the indoor terminal device; determining a second target operating temperature of the gas heating device according to the second liquid inlet temperature; The gas heating device is controlled to operate according to the second target operating temperature.

6. The control method of the environmental conditioning system according to claim 5, characterized in that: The step of determining the second target operating temperature of the gas heating device according to the second liquid inlet temperature comprises: Determine a third temperature difference between a second set temperature of the indoor terminal device and the second liquid inlet temperature, and determine a second correction coefficient according to a fourth temperature difference in the indoor terminal device; Correct the third temperature difference value according to the second correction coefficient to obtain a second temperature correction value; The second set temperature is corrected according to the second temperature correction value and the heat transfer temperature difference value of the gas heating device to obtain the second target operating temperature.

7. The control method of the environmental conditioning system according to claim 1, characterized in that: After the step of controlling the gas system to start the heat supplement mode to supplement heat to the heat pump system, the method further includes: When the fluid regulating assembly operates in the first operating state, obtaining a third liquid temperature of the liquid supply module; When the third liquid temperature is greater than or equal to the set temperature of the liquid supply module, controlling the gas system to stop the supplementary heat mode; Wherein, in the first operating state, the outlet of the first heat exchange device is connected to the refrigerant branch.

8. The control method of the environmental conditioning system according to claim 7, characterized in that: After the step of controlling the gas system to stop the supplementary heat mode, the method further includes: Controlling the fluid regulating assembly to operate in a second operating state, and controlling the environmental regulating system to operate according to the heat exchange demand of the indoor terminal device; Wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal equipment.

9. The control method of the environmental conditioning system according to claim 1, characterized in that: After the step of controlling the gas system to start the heat supplement mode to supplement heat to the heat pump system, the method further includes: When the fluid regulating component operates in a second operating state, obtaining a second liquid inlet temperature of the indoor terminal device; When the second liquid inlet temperature is greater than or equal to the set temperature of the indoor terminal device, controlling the gas system to stop the supplementary heating mode; Wherein, in the second operating state, the outlet of the first heat exchange device is connected to the indoor terminal equipment.

10. The control method of the environment adjustment system according to claim 1, characterized in that: When the liquid supply module has a heating demand, the state parameter includes the ambient temperature and the first liquid temperature of the liquid supply module, and the preset condition includes at least one of the following conditions: The ambient temperature is less than or equal to a first preset temperature; A temperature difference between a set temperature of the liquid supply module and the first liquid temperature is greater than or equal to a first preset value.

11. The control method of the environment adjustment system according to claim 1, characterized in that: When the liquid supply module does not have a heating demand and the indoor terminal device has a heating demand, the state parameter includes the ambient temperature and the first liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions: The ambient temperature is less than or equal to a second preset temperature; The temperature difference between the set temperature of the indoor terminal device and the first liquid inlet temperature is greater than or equal to a second preset value.

12. The control method of the environmental conditioning system according to any one of claims 1 to 11, characterized in that: When the heat pump system operates in a heating mode, before the step of obtaining the state parameters of the heat pump system, the step further includes: When the liquid supply module has a heating demand and the indoor terminal device does not have a heating demand, controlling the heat pump system to operate in a heating mode; When the liquid supply module has a heating demand and the indoor terminal device has a heating demand, controlling the heat pump system to operate in a heating mode; When the liquid supply module has no heating demand and the indoor terminal device has heating demand, controlling the heat pump system to operate in a heating mode; When neither the liquid supply module nor the indoor terminal device has a heating demand, the process returns to the step of obtaining the demand information.

13. An environmental conditioning system, characterized in that: The environmental conditioning system comprises a control device, a first heat exchange device, a heat pump system, a gas system and a liquid supply module, the heat pump system comprises a first refrigerant circulation loop, the first refrigerant circulation loop comprises a heat pump temperature control device, an indoor terminal device, a refrigerant branch and a fluid regulating component, the refrigerant branch is connected to the liquid supply module for heat exchange, 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, and the fluid regulating component is used for the amount of refrigerant flowing out of the first heat exchange device to the refrigerant branch and / or the indoor terminal device; 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 of the environmental conditioning system stored in the memory and executable on the processor, wherein the control program of the environmental conditioning system, when executed by the processor, implements the steps of the control method of the environmental conditioning system as described in any one of claims 1 to 12.

14. A storage medium, characterized in that: 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 12 are implemented.

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