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. Wherein the environment adjusting system comprises a first heat exchange device, a heat pump system and a fuel gas system, the heat pump system comprises a first secondary refrigerant circulation loop, the fuel gas system comprises a second secondary refrigerant circulation loop, and the first secondary refrigerant circulation loop and the second secondary refrigerant circulation loop are both connected with the first heat exchange device; the first secondary refrigerant circulation loop comprises a heat pump temperature adjusting device and indoor end equipment, the second secondary refrigerant circulation loop comprises a gas heating device, and the method comprises the following steps: when the heat pump system is in a heating mode and a state parameter representing whether the current heat of the indoor end equipment reaches target heat meets a preset condition, starting the gas heating device to heat the indoor end equipment; controlling the fuel gas system to start a heat supplementing mode so as to supplement heat for the heat pump system through the fuel gas heating device; wherein the preset condition shows that the current heat does not reach the target heat. The invention aims to ensure the indoor heating comfort and improve the energy-saving and low-carbon effects.

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 adjusting the indoor environment by the dual heat source system, the air source heat pump and the gas heat source operate independently of each other. When the heat provided by the air source heat pump cannot meet the indoor heating needs, it will switch to the gas heat source to provide heat. This results in the inability to effectively utilize the energy-saving and low-carbon capabilities of the air source heat pump, resulting in a waste of fuel energy. Summary of the invention

[0003] The main purpose of the present invention is to provide a control method of an environmental regulation system, an environmental regulation system and a storage medium, aiming to ensure indoor heating comfort while improving energy saving and low carbon effects.

[0004] To achieve the above 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 and a gas system, the heat pump system comprising a first refrigerant circulation loop, the gas system comprising a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop comprises a heat pump temperature control device and an indoor terminal device, the second refrigerant circulation loop comprises a gas heating device, and the control method for the environmental conditioning system comprises the following steps:

[0005] When the heat pump system is in heating mode, a state parameter is obtained, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat;

[0006] When the state parameter meets the preset condition, the gas system is controlled to start the heating mode, so as to supplement the heat for the heat pump system through the gas heating device;

[0007] The preset condition indicates that the current heat does not reach the target heat.

[0008] Optionally, the state parameter includes the ambient temperature and the liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0009] The ambient temperature is less than or equal to the preset ambient temperature;

[0010] The temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference, or the temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference and lasts for a preset time.

[0011] Optionally, when the state parameter meets a preset condition, after the step of controlling the gas system to start a supplementary heat mode so as to supplement heat for the heat pump system through the gas heating device, the method further includes:

[0012] Obtaining the liquid inlet temperature of the indoor terminal device, the first liquid outlet temperature of the heat pump temperature regulating device, and the second liquid outlet temperature of the gas heating device;

[0013] Determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature;

[0014] The operation of the gas heating device is controlled according to the second liquid outlet temperature and the target liquid outlet temperature.

[0015] Optionally, the step of determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature comprises:

[0016] Determine the temperature difference between the set temperature of the indoor terminal device and the inlet liquid temperature;

[0017] The first liquid outlet temperature is increased according to the temperature difference value to obtain the target liquid outlet temperature.

[0018] Optionally, the step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature includes:

[0019] Determine a first relationship value between a first rated heating capacity of the heat pump system and a second rated heating capacity of the gas system;

[0020] Correcting the temperature difference value according to the first relationship value to obtain a first temperature adjustment value;

[0021] The first liquid outlet temperature is increased according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0022] Optionally, the first brine circulation loop includes a first fluid pump, the second brine circulation loop includes a second fluid pump, and the step of increasing the first liquid outlet temperature according to the temperature difference to obtain the target liquid outlet temperature includes:

[0023] determining a second relationship value between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump;

[0024] Correct the temperature difference value according to the second relationship value to obtain a second temperature adjustment value;

[0025] The first liquid outlet temperature is increased according to the second temperature adjustment value to obtain the target liquid outlet temperature.

[0026] Optionally, when the state parameter meets a preset condition, after the step of controlling the gas system to start a supplementary heat mode so as to supplement heat for the heat pump system through the gas heating device, the method further includes:

[0027] When the temperature difference between the liquid inlet temperature of the indoor terminal device and the set temperature of the indoor terminal device is greater than or equal to a second preset temperature difference, the gas system is controlled to stop the supplementary heat mode.

[0028] Optionally, the control method of the environmental conditioning system further includes:

[0029] When the heat pump system is in the cooling mode, the gas system is controlled to stop the supplementary heating mode.

[0030] Optionally, the first refrigerant circulation loop further includes a first fluid pump, and when the heat pump system is in a heating mode, the step of obtaining the state parameter includes:

[0031] When the heat pump system is in a heating mode, the first fluid pump is controlled to start and the state parameter is obtained.

[0032] In addition, in order to achieve the above-mentioned purpose, the present application also proposes an environmental conditioning system, the environmental conditioning system comprising a control device, a first heat exchange device, a heat pump system and a gas system, the heat pump system comprising a first refrigerant circulation loop, the gas system comprising a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop comprises a heat pump temperature control device and an indoor terminal device, and the second refrigerant circulation loop comprises a gas heating device;

[0033] 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.

[0034] 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.

[0035] The present invention proposes a control method for an environmental conditioning system, in which a heat pump system and a gas system are respectively provided with a refrigerant circulation loop heat exchange connection, when the heat pump system is in a heating mode, the heat released by the heat pump temperature control device can be used for heating indoor terminal equipment, when it is determined through state parameters that the current heat of the indoor terminal equipment has not reached the target heat, the gas system starts a supplementary heat mode, and the refrigerant heated by the gas heating device can supplement the heat of the refrigerant in the first refrigerant circulation loop through heat exchange when flowing through a first heat exchange device. Compared with the method of directly switching to the gas heat source, the combined use of the heat of the two heat sources can ensure that sufficient heat is provided for indoor heating while increasing the use time of the heat pump system and reducing the use time of the gas system, thereby ensuring that the utilization rate of the energy-saving and low-carbon capacity of the heat pump system is effectively improved, so as to ensure the comfort of indoor heating while improving the energy-saving and low-carbon effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure and brine flow direction of an embodiment of the present invention when the liquid supply module is connected to the second brine circulation loop in the environmental conditioning system;

[0037] Figure 2 It is a schematic diagram of the structure and brine flow direction of another embodiment when the liquid supply module is connected to the second brine circulation loop in the environmental conditioning system of the present invention;

[0038] Figure 3 It is a schematic diagram of the structure and brine flow direction of another embodiment when the liquid supply module is connected to the second brine circulation loop in the environmental conditioning system of the present invention;

[0039] Figure 4 A schematic diagram of the structure and brine flow direction of an embodiment of the present invention when the liquid supply module is connected to the first brine circulation loop in the environmental conditioning system;

[0040] Figure 5 It is a schematic diagram of the structure and brine flow direction of another embodiment when the liquid supply module is connected to the first brine circulation loop in the environmental conditioning system of the present invention;

[0041] Figure 6 It is a schematic diagram of the structure and flow direction of the brine in another embodiment when the liquid supply module is connected to the first brine circulation loop in the environmental conditioning system of the present invention;

[0042] Figure 7 It is a schematic diagram of the structure and the flow direction of the brine in an embodiment of the environment conditioning system of the present invention when the liquid supply module is connected to the gas heating device and the first brine circulation loop;

[0043] Figure 8It is a schematic diagram of the structure and brine flow direction of an embodiment of the present invention when the liquid supply module is heat exchange connected with the heat exchange branch in the second brine circulation loop in the environmental conditioning system;

[0044] Fig. 9 It is a schematic diagram of the structure and brine flow direction of another embodiment of the present invention when the liquid supply module is heat exchange connected with the heat exchange branch in the second brine circulation loop in the environmental conditioning system;

[0045] Fig.10 A schematic diagram of the structure and brine flow direction of another embodiment of the present invention when the liquid supply module is heat exchange connected with the heat exchange branch in the second brine circulation loop in the environmental conditioning system;

[0046] Fig.11 A schematic diagram of the hardware structure involved in the operation of an embodiment of the environment adjustment system of the present invention;

[0047] Fig.12 A schematic diagram of a flow chart of an embodiment of a control method of an environmental conditioning system of the present invention;

[0048] Fig.13 A schematic flow chart of another embodiment of a control method for an environmental conditioning system of the present invention;

[0049] Fig.14 This is a flow chart of another embodiment of the control method of the environmental conditioning system of the present invention.

[0050] Description of Figure Numbers:

[0051] Label name Label name 1 Heat Pump System 32 First coil 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 51 First check valve 22 Second fluid pump 52 Second check valve 23 Heat exchange branch 6 Buffer container 24 Second fluid regulating assembly 7 Diversity 3 The first heat exchange device 8 Host 31 First cavity 9 Integrated modules

[0052] 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

[0053] 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.

[0054] The present invention provides an environment adjustment system.

[0055] In the embodiment of the present invention, refer to Figures 1 to 11The 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Based on the above settings, the operating states of the environmental control system include but are not limited to the following:

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] Further, in one embodiment, referring to Figures 1 to 3 The first heat exchange device 3 includes a first cavity 31 and a first coil 32 arranged in the first cavity 31, the first coil 32 is connected to the gas heating device 21, and the pipeline between the heat pump temperature control device 11 and the indoor terminal equipment 12 is connected to the first cavity 31.

[0071] In this embodiment, the first heat exchange device 3 is specifically an inner coil water tank.

[0072] The first cavity 31 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 31 to exchange heat with the first coil 32, 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.

[0073] The first coil 32 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 32 to exchange heat with the refrigerant in the first cavity 31, and the refrigerant after heat exchange can flow back to the gas heating device 21 for reheating.

[0074] 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.

[0075] In other embodiments, the pipeline between the heat pump temperature control device 11 and the indoor terminal equipment 12 may also be connected to the first coil 32 , and the gas heating device 21 is connected to the first cavity 31 .

[0076] Further, in one embodiment, referring to Figures 4 to 6 as well as Figures 8 to 10 The first heat exchange device 3 includes a liquid mixing chamber 33 , and the pipeline between the heat pump temperature control device 11 and the indoor terminal equipment 12 and the gas heating device 21 are both connected to the liquid mixing chamber 33 .

[0077] In this embodiment, the first heat exchange device 3 is specifically a coupling tank.

[0078] 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.

[0079] Further, in one embodiment, referring to Figures 1 to 10The 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] Further, in one embodiment, referring to Figures 1 to 3 The liquid supply module 4 includes a liquid inlet pipeline 41 and a liquid outlet pipeline 42. The gas heating device 21 has a liquid inlet and a liquid outlet. The first pipeline between the liquid inlet and the first heat exchange device 3 is connected to the liquid inlet pipeline 41, and the second pipeline between the liquid outlet and the first heat exchange device 3 is connected to the liquid outlet pipeline 42.

[0085] It should be noted that the brine in the second brine circulation loop and the liquid in the liquid supply module 4 are of the same type.

[0086] In addition to heating the refrigerant after heat exchange with the first heat exchange device 3, the gas heating device 21 can also be used to heat the liquid that needs to be temperature adjusted by flowing into the gas heating device 21 from the liquid inlet pipeline 41. A portion of the liquid heated by the gas heating device 21 can flow out from the liquid outlet pipeline 42 to meet the user's liquid supply needs, and another portion of the liquid heated by the gas heating device 21 can flow into the first heat exchange device 3 to supplement heat for the heat pump system 1.

[0087] In this embodiment, through the above method, the gas heating device 21 can meet the instant heating demand of the liquid supply module 4 and supplement the heat when the heat provided by the heat pump system 1 is insufficient, so as to ensure the indoor heating comfort while improving the energy saving and low carbon effect.

[0088] Further, in one embodiment, referring to Figures 1 to 3 , define the connection position between the liquid inlet pipeline 41 and the first pipeline as the first position, and set a first one-way valve 51 between the first position and the first heat exchange device 3, and the first one-way valve 51 is set to conduct one-way from the first heat exchange device 3 to the first position.

[0089] Under the one-way cut-off effect of the first one-way valve 51, the refrigerant flowing out of the first heat exchange device 3 is allowed to flow into the gas heating device 21, and the liquid flowing into the liquid inlet pipe 41 is prohibited from flowing to the first heat exchange device 3, but all flows into the gas heating device 21 for heating. On the one hand, it can prevent the liquid flowing into the liquid inlet pipe 41 from flowing into the first heat exchange device 3 and affecting the heat supplement to the heat pump system 1. On the other hand, it can enable the liquid flowing into the liquid inlet pipe 41 to quickly flow into the gas heating device 21 for heating, thereby effectively further improving the indoor heating comfort while satisfying the requirement of improving the heating efficiency of the liquid provided in the liquid supply module 4.

[0090] Further, in one embodiment, referring to Figures 1 to 3 The liquid inlet pipeline 41 is provided with a second one-way valve 52 , and the second one-way valve 52 is configured to be one-way from the inlet of the liquid inlet pipeline 41 to the outlet of the liquid inlet pipeline 41 .

[0091] Through the one-way shut-off effect of the second one-way valve 52, the liquid flowing into the liquid inlet pipe 41 is allowed to flow into the second refrigerant circulation loop, and the liquid in the second refrigerant circulation loop is prohibited from flowing out of the liquid inlet pipe 41, thereby avoiding heat loss in the second refrigerant circulation loop, thereby meeting the liquid supply demand while ensuring indoor heating comfort.

[0092] Further, in one embodiment, referring to Figures 4 to 6 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;

[0093] 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.

[0094] 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.

[0095] 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 .

[0096] 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 .

[0097] 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.

[0098] 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 .

[0099] Further, in one embodiment, referring to Figures 4 to 6The 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 .

[0100] 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.

[0101] 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.

[0102] 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.

[0103] Further, in one embodiment, referring to Figure 7 A first refrigerant flow path and a second refrigerant flow path are arranged in the gas heating device 21, and the liquid supply module 4 includes a liquid inlet pipeline 41 and a liquid outlet pipeline 42. The liquid inlet pipeline 41, the first refrigerant flow path and the liquid outlet pipeline 42 are connected in sequence, and both ends of the second refrigerant flow path are connected to the first heat exchange device 3.

[0104] The outlet of the second brine flow path is communicated with the second inlet of the first heat exchange device 3 , and the inlet of the second brine flow path is communicated with the second outlet of the first heat exchange device 3 .

[0105] The first coolant flow path and the second coolant flow path are isolated from each other.

[0106] When the gas heating device 21 is turned on, the refrigerant in the first refrigerant flow path and the refrigerant in the second refrigerant flow path can be heated at the same time.

[0107] In this embodiment, through the above arrangement, the gas heating device 21 can meet the instant heating demand of the liquid supply module 4 and supplement heat to the heat pump system 1, thereby meeting the liquid supply demand and improving indoor heating comfort.

[0108] Further, in one embodiment, referring to Figure 7 The liquid inlet pipeline 41 is connected to the first coolant circulation loop.

[0109] In the first refrigerant circulation loop, the first heat exchange device 3, or the pipeline between the first heat exchange device 3 and the heat pump temperature control device 11, or the pipeline between the first heat exchange device 3 and the indoor terminal equipment 12, or the pipeline between the indoor terminal equipment 12 and the heat pump temperature control device 11 can be connected to the liquid inlet pipeline 41.

[0110] Furthermore, in this embodiment, a water replenishment valve is provided on the pipeline between the liquid inlet pipeline 41 and the first refrigerant circulation loop, and the water replenishment valve can be used to control the liquid inlet pipeline 41 to replenish water to the first refrigerant circulation loop or stop replenishing water.

[0111] In this embodiment, the liquid inlet pipe 41 is connected to the first refrigerant circulation loop, which can realize effective liquid replenishment of the first refrigerant circulation loop, avoiding insufficient refrigerant in the first refrigerant circulation loop resulting in poor heat exchange efficiency of the indoor terminal device 12 and even affecting the system operation reliability, thereby further improving indoor comfort while protecting the system.

[0112] Further, in one embodiment, referring to Figure 7 A buffer container 6 is provided in the pipeline between the inlet of the heat pump temperature regulating device 11 and the outlet of the indoor terminal equipment 12 , and the liquid inlet pipeline 41 is connected to the buffer container 6 .

[0113] The buffer container 6 can be used to contain the coolant and its energy. In this embodiment, the buffer container 6 is a buffer water tank.

[0114] In this embodiment, a buffer container 6 is arranged between the indoor terminal equipment 12 and the heat pump temperature control device 11, and the liquid inlet pipeline 41 is connected to the buffer container 6, which is conducive to achieving liquid replenishment while improving the stability of the refrigerant temperature flowing into the heat pump temperature control device 11, thereby meeting the indoor temperature regulation requirements while effectively improving the stability of the operation of the heat pump system 1.

[0115] Further, in one embodiment, referring to Figures 8 to 10 The second coolant circulation loop further includes a heat exchange branch 23 and a second fluid regulating component 24, the gas heating device 21 is connected in parallel with the heat exchange branch 23, and the liquid supply module 4 is connected with the heat exchange branch 23 for heat exchange;

[0116] The liquid outlet of the first heat exchange device 3, the gas heating device 21 and the heat exchange branch 23 are all connected to the second fluid regulating component 24, and the second fluid regulating component 24 is used to regulate the refrigerant flow rate flowing into the heat exchange branch 23 and the first heat exchange device 3 from the liquid outlet respectively.

[0117] In one implementation of this embodiment, the second fluid regulating component 24 includes a three-way valve. The three-way valve has a third valve position and a fourth valve position. The liquid outlet corresponding to the third valve position is connected to the first heat exchange device 3, and the liquid outlet is blocked from the heat exchange branch 23. The liquid outlet corresponding to the second valve position is connected to the heat exchange branch 23, and the liquid outlet is blocked from the first heat exchange device 3. By switching the valve position of the three-way valve, the flow direction of the refrigerant flowing out of the gas heating device 21 can be switched.

[0118] In another implementation of this embodiment, the second fluid component may include a proportional regulating valve, which can adjust the ratio of the refrigerant flowing from the liquid outlet into the heat exchange branch 23 and the refrigerant in the first heat exchange device 3.

[0119] In another implementation of the present embodiment, the second fluid regulating component 24 may include a third control valve arranged in the heat exchange branch 23 and a fourth control valve arranged between the liquid outlet and the first heat exchange device 3, and the fourth control valve is located between the heat exchange branch 23 and the first heat exchange device 3, and the flow direction of the refrigerant outflowing from the gas heating device 21 is switched by opening and closing the third control valve and the fourth control valve.

[0120] In this embodiment, through the above method, the gas heating device 21 can adapt to the heat supplement demand of the heat pump system 1 and the liquid supply demand of the liquid supply module 4 to distribute the heat it provides, thereby effectively balancing the liquid supply demand and the comfort of the indoor section.

[0121] 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.

[0122] The refrigerant circulation circuit is filled with refrigerant, such as fluorine.

[0123] 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.

[0124] 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.

[0125] In another embodiment, the refrigerant circulation loop further includes a reversing component, and the exhaust port of the compressor, the return 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 operating state and a second operating state, and the exhaust port corresponding to the first operating state is connected to the first heat exchange part, and the return port is connected to the second heat exchange part; the exhaust port corresponding to the second operating state is connected to the second heat exchange part, and the return 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 operating 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 operating 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.

[0126] 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.

[0127] 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.

[0128] Further, in one embodiment, referring to Figures 2 to 3 , Figures 5 and 6 as well as Figures 9 and 10 The refrigerant circulation loop also includes a convection heat exchange device 16.

[0129] In this embodiment, the convection heat exchange device 16 includes a duct machine or the like.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] Furthermore, in one embodiment, Figures 1 to 10 , 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;

[0134] 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.

[0135] In this embodiment, the host 8 may be located in an outdoor environment.

[0136] 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.

[0137] The integrated module 9 can be produced independently as a hydraulic module.

[0138] 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.

[0139] 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.

[0140] Further, in one embodiment, referring to Fig.11 The 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.

[0141] Further, in one embodiment, referring to Fig.11 The environment conditioning system further includes a first temperature sensor 02 connected to the control device 100. The first 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.

[0142] Further, in one embodiment, referring to Fig.11 The environment adjustment system further includes a second temperature sensor 03 connected to the control device 100. The second temperature sensor 03 is disposed at the liquid outlet side of the heat pump temperature adjustment device 11 to detect the liquid outlet temperature of the heat pump temperature adjustment device 11.

[0143] Further, in one embodiment, referring to Fig.11 The environment adjustment system further includes a third temperature sensor 04 connected to the control device 100. The third temperature sensor 04 is disposed at the liquid outlet side of the gas heating device 21 to detect the liquid outlet temperature of the gas heating device 21.

[0144] In the embodiment of the present invention, refer to Fig.11 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.

[0145] Those skilled in the art will understand that Fig.11 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.

[0146] like Fig.11 As shown, the memory 1002 as a computer storage medium may include a control program of the environmental conditioning system.

[0147] exist Fig.11In 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.

[0148] 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.

[0149] Reference Fig.12 , 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:

[0150] Step S10, when the heat pump system is in heating mode, obtaining a state parameter, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat;

[0151] 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.

[0152] The state parameters may include the operating state parameters of the indoor terminal device itself and / or the environmental parameters of the environment in which the indoor terminal device is located. The operating state parameters 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 environmental parameters include at least one of the following parameters: the indoor ambient temperature, the outdoor ambient temperature, the indoor temperature change value, etc.

[0153] The target heat is specifically the target value of the heat output required by the indoor terminal device to meet the heating demand of the indoor environment where the indoor terminal device is located.

[0154] Step S20, when the state parameter meets the preset condition, control the gas system to start the supplementary heat mode to supplement heat for the heat pump system through the gas heating device; wherein the preset condition indicates that the current heat does not reach the target heat.

[0155] 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.

[0156] 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 in from the first refrigerant circulation loop. The refrigerant after the heat exchange can flow into the indoor terminal equipment and be released into the indoor space to increase the temperature of the indoor space.

[0157] 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.

[0158] During 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 parameter 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 parameter of the environmental regulation system.

[0159] A control method for an environmental conditioning system is proposed in an embodiment of the present invention. In the environmental conditioning system, a heat pump system and a gas system are respectively provided with a refrigerant circulation loop heat exchange connection. When the heat pump system is in a heating mode, the heat released by the heat pump temperature control device can be used for heating indoor terminal equipment. When it is determined through state parameters that the current heat of the indoor terminal equipment has not reached the target heat, the gas system starts a supplementary heat mode. The refrigerant heated by the gas heating device can supplement the heat of the refrigerant in the first refrigerant circulation loop through heat exchange when flowing through a first heat exchange device. Compared with the method of directly switching to the gas heat source, the combined use of the heat from the two heat sources can ensure that sufficient heat is provided for indoor heating while increasing the use time of the heat pump system and reducing the use time of the gas system, thereby ensuring that the utilization rate of the energy-saving and low-carbon capacity of the heat pump system is effectively improved, so as to ensure the comfort of indoor heating while improving the energy-saving and low-carbon effect.

[0160] Among them, when the state parameters do not meet the preset conditions, the gas system can be controlled to stop the heating mode to avoid excessive heat in the indoor terminal equipment, so as to effectively meet the indoor heating comfort.

[0161] Further, in one embodiment, the state parameter includes the ambient temperature and the liquid inlet temperature of the indoor terminal device, and the preset condition includes at least one of the following conditions:

[0162] The ambient temperature is less than or equal to the preset ambient temperature;

[0163] The temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference, or the temperature difference between the set temperature of the indoor terminal device and the inlet temperature is greater than the first preset temperature difference and lasts for a preset time.

[0164] In this embodiment, the ambient temperature is the outdoor ambient temperature. In other embodiments, the ambient temperature may also be the indoor ambient temperature.

[0165] The set temperature of the indoor terminal device is specifically a preset target temperature that the indoor environment where the indoor terminal device is located needs to achieve.

[0166] The temperature difference here is the calculated result of subtracting the inlet liquid temperature from the set temperature.

[0167] The value range of the first preset temperature difference is [-15, 5], and the value range of the preset time is [30min, 60min].

[0168] In this embodiment, when the ambient temperature is too low and / or the temperature difference between the set temperature and the inlet temperature is too large, it indicates that the heat pump system alone does not provide enough heat for the indoor terminal equipment and cannot meet the indoor heating comfort. At this time, the heating supplement mode of the gas system is turned on in time to supplement heat for the heat pump system through the gas system, so as to effectively improve the indoor heating comfort.

[0169] Further, based on the above embodiment, another embodiment of the control method of the environmental adjustment system of the present application is proposed. Fig.13 , after step S20, further comprising:

[0170] Step S30, obtaining the liquid inlet temperature of the indoor terminal device, the first liquid outlet temperature of the heat pump temperature regulating device, and the second liquid outlet temperature of the gas heating device;

[0171] The liquid inlet temperature specifically refers to the temperature of the refrigerant flowing into the indoor terminal device. In the present embodiment, it is also the temperature of the refrigerant flowing out of the first outlet of the first heat exchange device.

[0172] The first liquid outlet temperature is specifically the temperature of the refrigerant flowing out after being regulated by the heat pump temperature regulating device. In the present embodiment, it is also the temperature of the refrigerant flowing into the first inlet of the first heat exchange device.

[0173] The second liquid outlet temperature is specifically the temperature of the refrigerant after being heated by the gas heating device. In the present embodiment, it is also the temperature of the refrigerant flowing from the gas heating device into the first heat exchange device.

[0174] Step S40, determining a target liquid outlet temperature of the gas heating device according to the liquid inlet temperature and the first liquid outlet temperature;

[0175] Different liquid inlet temperatures and different first liquid outlet temperatures correspond to different target liquid outlet temperatures.

[0176] In one embodiment, the correspondence between the liquid inlet temperature, the first liquid outlet temperature and the target liquid outlet temperature can be pre-set. The correspondence may include a calculation formula, a mapping relationship, etc. Based on the correspondence, the target liquid outlet temperature corresponding to the current liquid inlet temperature and the first liquid outlet temperature can be determined.

[0177] In another embodiment, a temperature adjustment value may be determined according to the liquid inlet temperature and the first liquid outlet temperature, and the reference liquid outlet temperature may be adjusted according to the temperature adjustment value to obtain the target liquid outlet temperature.

[0178] Step S50: controlling the operation of the gas heating device according to the second liquid outlet temperature and the target liquid outlet temperature.

[0179] The heating control parameters of the gas heating device are determined according to the magnitude relationship, difference or ratio between the second liquid outlet temperature and the target liquid outlet temperature, and the operation of the gas heating device is controlled according to the determined heating control parameters.

[0180] For example, when the second liquid outlet temperature is greater than the target liquid outlet temperature, the gas heating device can be controlled to reduce the heating power; when the second liquid outlet temperature is less than the target liquid outlet temperature, the gas heating device can be controlled to increase the heating power.

[0181] For another example, the temperature difference between the second liquid outlet temperature and the target liquid outlet temperature is determined, a power adjustment value of the heating power is determined according to the temperature difference, and the heating power of the gas heating device is increased or decreased according to the power adjustment value.

[0182] In this embodiment, the liquid inlet temperature and the first liquid outlet temperature can accurately reflect the heat supplemented by the gas system. Therefore, determining the target liquid outlet temperature based on the liquid inlet temperature and the first liquid outlet temperature is beneficial to improving the accuracy of the gas system's heat supplement to the heat pump system, avoiding excessive or insufficient heat supplement, achieving energy saving and low carbon while ensuring indoor heating comfort.

[0183] Furthermore, in this embodiment, the temperature difference between the set temperature of the indoor terminal device and the liquid inlet temperature is determined; the first liquid outlet temperature is increased according to the temperature difference to obtain the target liquid outlet temperature.

[0184] The temperature correction value is determined according to the temperature difference value, and the sum of the temperature correction value and the first liquid outlet temperature is used as the target liquid outlet temperature. Alternatively, the product of the temperature correction value and the first liquid outlet temperature can also be used as the target liquid outlet temperature.

[0185] Specifically, a correspondence between the temperature difference value and the temperature correction value can be established in advance, and the correspondence can include a mapping relationship, a calculation formula, etc., and the temperature correction value corresponding to the current temperature difference value can be determined based on the correspondence. Alternatively, the indoor temperature of the indoor environment where the indoor terminal device is located, the first ambient temperature of the environment where the first heat exchange device is located, and the refrigerant temperature difference between the second inlet and the second outlet of the first heat exchange device can be obtained, and the target correspondence between the temperature difference value and the temperature correction value is obtained according to the indoor temperature, the first ambient temperature, and the refrigerant temperature difference, and the temperature correction value corresponding to the current temperature difference value can be determined based on the target correspondence.

[0186] In this embodiment, the temperature difference value can accurately reflect the deviation between the current input heat and the required heat of the indoor terminal device. Therefore, increasing the first liquid outlet temperature based on the temperature difference value to obtain the target liquid outlet temperature is beneficial to further improve the accuracy of heat supplement in the gas system, so as to further achieve energy saving and low carbon and indoor heating comfort. Effective improvement of the effect.

[0187] Furthermore, in this embodiment, the step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature includes: determining a first relationship value between a first rated heating capacity of the heat pump system and a second rated heating capacity of the gas system; correcting the temperature difference value according to the first relationship value to obtain a first temperature adjustment value; and increasing the first liquid outlet temperature according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0188] The first rated heating capacity is the nominal heating capacity of the heat pump system. The second rated heating capacity is the nominal heating capacity of the gas heating device. Both the first rated heating capacity and the second rated heating capacity are preset fixed values.

[0189] In this embodiment, the first relational value is the ratio of the first rated heating amount to the second rated heating amount. In other embodiments, the first relational value may also be the difference between the first rated heating amount and the second rated heating amount.

[0190] The product of the first relationship value and the temperature difference value is used as the first temperature adjustment value, and the sum of the first temperature adjustment value and the first liquid outlet temperature is used as the target liquid outlet temperature.

[0191] In this embodiment, since the supplementary heat of the wall-mounted boiler should be equal to the heat to be increased by the heat pump water supply, the first liquid outlet temperature is increased by combining the first relationship value between the first rated heating amount and the second rated heating amount and the temperature difference value to obtain the target liquid outlet temperature, which is beneficial to further improve the accuracy of the target liquid outlet temperature and ensure that when the gas heating device is controlled to operate according to the target liquid outlet temperature, the heat supplemented by the gas system to the heat pump system can accurately meet the comfort of indoor heating.

[0192] Furthermore, in the present embodiment, the first refrigerant circulation circuit includes a first fluid pump, and the second refrigerant circulation circuit includes a second fluid pump, and the step of increasing the first liquid outlet temperature according to the temperature difference value to obtain the target liquid outlet temperature includes: determining a second relationship value between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump; correcting the temperature difference value according to the second relationship value to obtain a second temperature adjustment value; and increasing the first liquid outlet temperature according to the second temperature adjustment value to obtain the target liquid outlet temperature.

[0193] In this embodiment, the second relationship value is the ratio of the working flow rate of the first fluid pump to the working flow rate of the second fluid pump. In other embodiments, the second relationship value may also be the difference between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump.

[0194] The product of the second relationship value and the temperature difference value is used as the second temperature adjustment value, and the sum of the second temperature adjustment value and the first liquid outlet temperature is used as the target liquid outlet temperature.

[0195] In this embodiment, since the supplementary heat of the wall-mounted boiler should be equal to the heat to be increased by the heat pump water supply, the first liquid outlet temperature is increased by combining the second relationship value between the working flow rate of the first fluid pump and the working flow rate of the second fluid pump and the temperature difference value to obtain the target liquid outlet temperature, which is beneficial to further improve the accuracy of the target liquid outlet temperature and ensure that when the gas heating device is controlled to operate according to the target liquid outlet temperature, the heat supplemented by the gas system to the heat pump system can accurately meet the comfort of indoor heating.

[0196] Furthermore, when the working flow rate of at least one of the first fluid pump and the second fluid pump is adjustable, the temperature difference can be corrected by the second relationship value obtained here to obtain the second temperature adjustment value, and the first liquid outlet temperature can be increased according to the second temperature adjustment value to obtain the target liquid outlet temperature; when the working flow rates of the first fluid pump and the second fluid pump are both fixed, the temperature difference can be corrected by the first relationship value obtained above to obtain the first temperature adjustment value, and the first liquid outlet temperature can be increased according to the first temperature adjustment value to obtain the target liquid outlet temperature.

[0197] Further, based on any of the above embodiments, another embodiment of the control method of the environmental adjustment system of the present application is proposed. Fig.14 , after step S20, further comprising:

[0198] Step S60: When the temperature difference between the liquid inlet temperature of the indoor terminal device and the set temperature of the indoor terminal device is greater than or equal to a second preset temperature difference, the gas system is controlled to stop the supplementary heating mode.

[0199] The second preset temperature difference value here is a value greater than 0. The value range of the second preset temperature value is [2, 5].

[0200] When the temperature difference between the inlet temperature of the indoor terminal device and the set temperature is greater than or equal to the second preset temperature difference, it indicates that the inlet temperature of the indoor terminal device is already higher than the set temperature by a large margin, and the indoor terminal device has sufficient heat to meet the indoor heating needs. At this time, the gas heating device in the gas system can be turned off, and the second fluid pump can be turned off.

[0201] Among them, when the gas system also includes a liquid supply module, during the process of stopping the supplementary heat mode, when the liquid supply module has a liquid supply heating demand, the gas heating device can remain in the open state, and the second fluid pump is turned off.

[0202] It should be noted that when step S20 further includes steps S30 to S50, step S60 here can be executed after step S50.

[0203] In this embodiment, the above method can be used to stop the supplementary heating mode in time when the indoor heating comfort has been effectively met. On the one hand, it can avoid the excessive temperature of the indoor terminal equipment affecting the indoor comfort. On the other hand, it can effectively reduce the fuel used in the process of adjusting the indoor environment by the gas system, thereby ensuring indoor comfort while further improving the energy conservation and emission reduction effects.

[0204] 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 control method of the environmental conditioning system further includes: when the heat pump system is in the cooling mode, controlling the gas system to stop the supplementary heating mode.

[0205] In this embodiment, the stop supplementary heating mode includes shutting down the gas heating device in the gas system and shutting down the second fluid pump.

[0206] In other embodiments, when the gas system further includes a liquid supply module, when the supplementary heat mode is stopped and the liquid supply module has a liquid heating demand, the gas heating device may remain in the open state, but the second fluid pump may be turned off.

[0207] In this embodiment, through the above-mentioned method, it can be ensured that the indoor terminal equipment can meet the indoor cooling and heating needs at the same time, thereby further improving the comfort of the indoor space.

[0208] Further, based on any of the above embodiments, the first refrigerant circulation loop also includes a first fluid pump, and when the heat pump system is in a heating mode, the step of obtaining the state parameters includes: when the heat pump system is in a heating mode, controlling the first fluid pump to turn on and obtaining the state parameters.

[0209] In this embodiment, when the first fluid pump is turned on and driven, the state parameters of the brine are detected during the circulation of the brine in the first brine circulation loop.

[0210] Based on this, it is helpful to improve the accurate judgment of whether the heat of the indoor terminal equipment is sufficient, so as to ensure the accuracy of the heat supplement adjustment of the gas system, thereby further improving the energy saving and emission reduction effects while meeting the indoor comfort.

[0211] 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.

[0212] 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.

[0213] 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.

[0214] 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 can also be implemented 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, and the computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, including a number of instructions for a terminal device (which can be a mobile phone, computer, server, environmental conditioning system, or network equipment, etc.) to execute the methods described in each embodiment of the present invention.

[0215] 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 and a gas system, the heat pump system comprises a first refrigerant circulation loop, the gas system comprises a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop comprises a heat pump temperature control device and an indoor terminal device, the second refrigerant circulation loop comprises a gas heating device, and the control method of the environmental conditioning system comprises the following steps: When the heat pump system is in heating mode, a state parameter is obtained, wherein the state parameter indicates whether the current heat of the indoor terminal device reaches the target heat; When the state parameter meets the preset condition, the gas system is controlled to start the heating mode, so as to supplement the heat for the heat pump system through the gas heating device; The preset condition indicates that the current heat does not reach the target heat.

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

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

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

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

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

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

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

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

10. An environmental conditioning system, characterized in that: The environmental conditioning system includes a control device, a first heat exchange device, a heat pump system and a gas system, the heat pump system includes a first refrigerant circulation loop, the gas system includes a second refrigerant circulation loop, the first refrigerant circulation loop and the second refrigerant circulation loop are both connected to the first heat exchange device, the first refrigerant circulation loop includes a heat pump temperature control device and an indoor terminal device, and the second refrigerant circulation loop includes a gas heating device; The heat pump system and the gas system are both connected to the control device, 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 9.

11. 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 9 are implemented.

Images