Heat pump enthalpy increasing device and control method, device, system and storage medium thereof

Abstract

The application discloses a heat pump enthalpy increasing device and a control method, device, system and storage medium thereof. The heat pump enthalpy increasing device comprises a heat pump assembly, a solar heat collecting assembly and an economizer. The heat pump assembly comprises a first heat exchanger, a second heat exchanger, a compressor, a first throttling device and a refrigerant pipeline. The solar heat collecting assembly comprises a refrigerant branch, a solar heat collecting device arranged in the refrigerant branch and a bypass flow path. The economizer has a first flow channel and a second flow channel. The first flow channel is arranged in the refrigerant pipeline and is connected in series between the first heat exchanger and the first throttling device. A first end of the refrigerant branch is connected to the refrigerant pipeline between the first flow channel and the first heat exchanger. A second end of the refrigerant branch is connected to a first end of the second flow channel. A second end of the second flow channel is connected to a gas supplementing port of the compressor. The bypass flow path is connected between two ends of the refrigerant branch. The reliability of heat supply can be effectively improved on the basis of meeting energy saving.

Description

Technical Field

[0001] This application relates to the field of energy conservation, and in particular to a heat pump enthalpy-enhancing device and its control method, apparatus, system and storage medium. Background Technology

[0002] A heat pump, generally referring to an air-source heat pump, can convert low-grade heat energy (such as the heat contained in the air) that cannot be directly used into high-grade heat energy that can be used, thereby achieving the purpose of energy saving.

[0003] Related technologies have already included electronic devices such as heat pump air conditioners and heat pump water heaters. For example... Figure 1 As shown, a heat pump water heater includes an evaporator and a compressor located outdoors, and a water tank located indoors. The portion of the refrigerant piping coiled around the outer wall of the water tank forms a condenser, and the refrigerant piping connects the evaporator and the compressor. A throttling device (such as a capillary tube) is installed between the condenser and the evaporator in the refrigerant piping. The evaporator absorbs heat from the air and transfers it to the water tank via the refrigerant piping to heat the water inside. Because the heat source is outdoor air, heat loss is severe in low-temperature and high-humidity environments, affecting the system's heat absorption and resulting in poor hot water performance, often failing to meet heating demands.

[0004] Considering that solar energy is a clean energy source, it can extract heat energy from sunlight and provide it to heat pump components, that is, use solar energy to increase the enthalpy of heat pump components. However, related technologies often set the solar collector and the air source heat exchanger in series on the refrigerant pipeline. This does not fully consider the pressure drop loss of the refrigerant flowing through the solar collector, which causes the heat pump components to consume power to overcome the pressure drop loss. Moreover, this series connection will cause the refrigerant of the heat pump components to be in a gas-liquid two-phase state when it reaches the air source heat exchanger after passing through the solar collector, so that some of the refrigerant cannot exert its effective heat absorption capacity, resulting in an unsatisfactory enthalpy increase effect of the heat pump components. Summary of the Invention

[0005] In view of this, embodiments of this application provide a heat pump enthalpy-enhancing device and its control method, apparatus, system and storage medium, which aim to effectively improve the enthalpy-enhancing effect of heat pump components while meeting energy-saving requirements.

[0006] The technical solution of this application embodiment is implemented as follows:

[0007] In a first aspect, embodiments of this application provide a heat pump enthalpy-increasing device, comprising:

[0008] A heat pump assembly, comprising: a first heat exchanger, a second heat exchanger, a compressor, a first throttling device, and a refrigerant pipeline, wherein the refrigerant pipeline is sequentially connected to the compressor, the first heat exchanger, the first throttling device, and the second heat exchanger;

[0009] A solar thermal collector module for converting at least solar energy into thermal energy, the solar thermal collector module including a refrigerant branch, a solar thermal collector device disposed in the refrigerant branch, and a bypass flow path;

[0010] An economizer, the economizer having a first flow channel and a second flow channel;

[0011] The first flow channel is disposed in the refrigerant pipeline and is connected in series between the first heat exchanger and the first throttling device. The first end of the refrigerant branch is connected to the refrigerant pipeline between the first flow channel and the first heat exchanger. The second end of the refrigerant branch is connected to the first end of the second flow channel. The second end of the second flow channel is connected to the gas injection port of the compressor. The bypass flow path is connected between the two ends of the refrigerant branch.

[0012] In some embodiments, the solar thermal collector module further includes:

[0013] The second throttling device is installed on the refrigerant branch, and the bypass flow path and the solar collector are both connected in series with the second throttling device.

[0014] In some implementations, the solar collector module further includes a first control valve and a second control valve. The first control valve is disposed in the refrigerant branch, and the second control valve is disposed in the bypass flow path. The flow path containing the first control valve and the solar collector is connected in parallel with the flow path containing the second control valve.

[0015] Secondly, embodiments of this application provide a control method for the heat pump enthalpy-increasing device described in the first aspect of this application, comprising:

[0016] Obtain the intensity level of sunlight;

[0017] The target operating mode of the heat pump enthalpy-enhancing equipment is determined based on the light intensity level.

[0018] The heat pump enthalpy-enhancing device is controlled to operate in the target working mode.

[0019] In some implementations, determining the target operating mode of the heat pump enthalpy-enhancing device based on the light intensity level includes:

[0020] If the light intensity level is the first level, then the target working mode is determined to be the first working mode;

[0021] If the light intensity level is level two, then the target working mode is determined to be the current working mode;

[0022] If the light intensity level is level three, then the target working mode is determined to be the second working mode;

[0023] Wherein, the light intensity of the first level > the light intensity of the second level > the light intensity of the third level; in the first working mode, the flow path of the solar collector is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer; in the second working mode, the bypass flow path is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the economizer.

[0024] In some implementations, controlling the heat pump enthalpy-enhancing device to operate in the first operating mode includes:

[0025] Connect the flow path of the solar thermal collector and obtain the first temperature value and the second temperature value;

[0026] If the first temperature value is less than or equal to the second temperature value, the economizer is determined to be in an overheating condition, and the bypass flow path is opened.

[0027] If the first temperature value is greater than the second temperature value, the economizer is determined to be in a subcooled condition, and the refrigerant flow rate in the refrigerant branch is adjusted based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and the set parameter threshold.

[0028] Wherein, the first temperature value is the temperature value of the refrigerant at the inlet side of the first flow channel, and the second temperature value is the temperature value of the refrigerant at the outlet side of the first flow channel.

[0029] In some implementations, the parameter value is the refrigerant temperature value at the outlet side of the second flow channel, and adjusting the refrigerant flow rate in the refrigerant branch based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and a set parameter threshold includes:

[0030] If the refrigerant temperature value is greater than the set temperature threshold, then reduce the refrigerant flow rate in the refrigerant branch;

[0031] If the refrigerant temperature value is less than the set temperature threshold, then increase the refrigerant flow rate in the refrigerant branch;

[0032] If the refrigerant temperature value is equal to the set temperature threshold, then the refrigerant flow rate in the refrigerant branch is maintained.

[0033] Thirdly, embodiments of this application provide a control device for the heat pump enthalpy-increasing equipment described in the first aspect of this application, comprising:

[0034] The acquisition module is used to acquire the intensity level of sunlight.

[0035] The determination module is used to determine the target operating mode of the heat pump enthalpy-enhancing equipment based on the light intensity level;

[0036] The control module is used to control the heat pump enthalpy-enhancing equipment to operate in the target working mode.

[0037] Fourthly, embodiments of this application provide a control device for the heat pump enthalpy-enhancing device described in the first aspect of this application, comprising: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor, when running the computer program, executes the steps of the method described in the second aspect of this application.

[0038] Fifthly, embodiments of this application provide a heat pump enthalpy enhancement system, including the heat pump enthalpy enhancement device described in the first aspect of embodiments of this application and the control device described in the fourth aspect of embodiments of this application.

[0039] In a sixth aspect, embodiments of this application provide a storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the second aspect of embodiments of this application.

[0040] The technical solution provided in this application embodiment includes a heat pump enthalpy-increasing device comprising: a heat pump assembly, a solar collector assembly, and an economizer. The heat pump assembly includes: a first heat exchanger, a second heat exchanger, a compressor, a first throttling device, and refrigerant piping. The refrigerant piping is sequentially connected to the compressor, the first heat exchanger, the first throttling device, and the second heat exchanger. The solar collector assembly includes a refrigerant branch, a solar collector device disposed within the refrigerant branch, and a bypass flow path. The economizer has a first flow channel and a second flow channel. The first flow channel is disposed within the refrigerant piping and is connected in series between the first heat exchanger and the first throttling device. A first end of the refrigerant branch is connected to the refrigerant piping between the first flow channel and the first heat exchanger. A second end of the refrigerant branch is connected to the first end of the second flow channel. The second end of the second flow channel is connected to the compressor's gas inlet. The bypass flow path is connected between the two ends of the refrigerant branch. Thus, the enthalpy of the compressor can be increased based on the solar collector device and / or the economizer, thereby effectively improving the reliability of heating while meeting energy-saving requirements. Attached Figure Description

[0041] Figure 1 This is a structural schematic diagram of a heat pump water heater in related technologies;

[0042] Figure 2 This is a schematic diagram of the structure of a heat pump enthalpy-enhancing device according to an embodiment of this application;

[0043] Figure 3 This is a schematic diagram illustrating the principle of the heat pump enthalpy-enhancing device operating in the first working mode according to an embodiment of this application;

[0044] Figure 4 This is a schematic diagram illustrating the principle of the heat pump enthalpy-enhancing device operating in the second working mode according to an embodiment of this application;

[0045] Figure 5 This is a schematic flowchart of the control method for the heat pump enthalpy-enhancing device according to an embodiment of this application;

[0046] Figure 6 This is a logical diagram illustrating the determination of the target operating mode of the heat pump enthalpy-enhancing device in an application example of this application.

[0047] Figure 7 This is a logic diagram illustrating the control of a heat pump enthalpy-enhancing device in its first operating mode, as shown in an application example of this application.

[0048] Figure 8 This is a schematic diagram of the control device of the heat pump enthalpy-increasing equipment according to an embodiment of this application;

[0049] Figure 9 This is a schematic diagram of the control device of the heat pump enthalpy-increasing device according to an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Compressor; 2. Four-way valve; 3. Second heat exchanger;

[0052] 4. First throttling device; 5. Economizer; 51. First flow channel; 52. Second flow channel;

[0053] 6. Solar thermal collector; 7. First control valve; 8. Second control valve; 9. Second throttling device;

[0054] 10. Refrigerant piping; 11. Refrigerant branch lines;

[0055] 11A, First shared conduit; 11B, Second shared conduit;

[0056] 12. First shut-off valve; 13. Second shut-off valve;

[0057] 14. First heat exchanger; 15. Heating terminal; 16. Power system;

[0058] 17. First temperature sensor; 18. Second temperature sensor;

[0059] 19. Third temperature sensor; 20. Bypass flow path;

[0060] 801. Acquisition Module; 802. Determination Module; 803. Control Module;

[0061] 901. Processor; 902. Memory; 903. User interface; 904. Bus system. Detailed Implementation

[0062] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0064] This application provides a heat pump enthalpy-enhancing device, which includes: a heat pump assembly, a solar collector assembly, and an economizer. For example... Figure 2 As shown, the heat pump assembly includes: a first heat exchanger 14, a second heat exchanger 3, a compressor 1, a first throttling device 4, and a refrigerant pipeline 10, wherein the refrigerant pipeline 10 is sequentially connected to the compressor 1, the first heat exchanger 14, the first throttling device 4, and the second heat exchanger 3. The solar collector assembly is used to convert at least solar energy into thermal energy, and includes a refrigerant branch 11, a solar collector 6 disposed in the refrigerant branch 11, and a bypass flow path 20; the economizer 5 has a first flow channel 51 and a second flow channel 52. The first flow channel 51 is installed in the refrigerant pipeline 10 and is connected in series between the first heat exchanger 14 and the first throttling device 4. The first end of the refrigerant branch 11 is connected in the refrigerant pipeline 10 between the first flow channel 51 and the first heat exchanger 14. The second end of the refrigerant branch 11 is connected to the first end of the second flow channel 52. The second end of the second flow channel 52 is connected to the gas injection port of the compressor 1. The bypass flow channel 20 is connected between the two ends of the refrigerant branch 11.

[0065] For example, the solar thermal collector 6 can be a solar thermal collector panel or a solar photovoltaic heating panel.

[0066] It should be noted that the aforementioned solar collector plate is also known as a PT (Photo Thermal) plate, which has the function of absorbing solar energy and converting it into heat energy. The heat collection form of the PT plate can be flat plate heat collection, vacuum tube heat collection, concentrating heat collection, heat exchange tube heat collection, etc., and the embodiments of this application do not limit it in this way.

[0067] It should be noted that the aforementioned solar photovoltaic heating panel, also known as a PVT (Photovoltaic Thermal) panel, is a component combining a photovoltaic panel and a collector panel, possessing the functions of photovoltaic power generation and waste heat utilization. For example, a PVT panel can be laminated from a PT (Polymer Transformer) panel and a photovoltaic panel. It is understood that the output end of the photovoltaic panel of the PVT panel can be electrically connected to the power system 16 to output electrical energy converted from solar energy to the power system 16. For example, the power system 16 may include equipment such as an inverter, a distribution cabinet, and a battery.

[0068] The economizer 5 in this embodiment has a first flow channel 51 for refrigerant heat release and a second flow channel 52 for refrigerant heat absorption. Exemplarily, the economizer 5 can be a phase change heat exchanger, which stores a phase change heat storage medium and forms the aforementioned first flow channel 51 for refrigerant heat release and second flow channel 52 for refrigerant heat absorption. When the refrigerant on the refrigerant pipe 10 flows through the first flow channel 51, it can release heat to the phase change heat storage medium. When the refrigerant on the refrigerant branch 11 flows through the second flow channel 52, it can absorb heat from the phase change heat storage medium. It is understood that during operation, when the temperature of the heat source is higher than the temperature of the heat load, the economizer 5 absorbs and stores heat, and when the temperature of the heat source is lower than the temperature of the heat load, the economizer 5 releases heat. The phase change heat storage medium can be an organic phase change material, a molten salt phase change heat storage material, an alloy phase change heat storage material, etc., and this embodiment does not limit this.

[0069] Understandably, the refrigerant (e.g., Freon) compressed by compressor 1 can flow to the first heat exchanger 14 after passing through the four-way valve 2. For example, if the first heat exchanger 14 is a hot water storage tank, the refrigerant pipeline 10 can release heat to the tap water in the hot water storage tank by winding around the outer or inner wall of the tank. The refrigerant after releasing heat condenses into liquid refrigerant. The liquid refrigerant continues to release heat through the first flow channel 51 of the economizer 5, and then becomes a low-temperature, low-pressure two-phase fluid after being depressurized by the first throttling device 4 (e.g., throttling capillary tube, thermostatic expansion valve, or electronic expansion valve). This two-phase fluid can flow through the second heat exchanger 3 to absorb heat, for example, by absorbing heat from the outdoor air source. The refrigerant after absorbing heat is once again introduced into the air inlet of compressor 1 through the four-way valve 2 to enter the next cycle. In addition, the refrigerant that is diverted from the refrigerant pipeline 10 through the refrigerant branch 11 can flow back to the air inlet of compressor 1 through the solar collector 6 and / or the bypass flow path 20. In this way, the enthalpy of the compressor 1 can be increased based on the solar thermal collector 6 and / or the economizer 5, thereby effectively improving the reliability of heating while meeting energy-saving requirements.

[0070] It should be noted that enthalpy is a state function in thermodynamics representing the energy of a material system, commonly denoted by the symbol H. Numerically, it equals the system's internal energy U plus the product of pressure p and volume V, i.e., H = U + pV. The change in enthalpy is a measure of the heat absorbed by the system in an isobaric reversible process; the increase in enthalpy represents the increase in thermal energy and expansion force of the system.

[0071] It is understood that the heat pump enthalpy-enhancing device of this application, based on the above-mentioned refrigerant branch 11 and bypass flow path 20, effectively solves the heating demand problem caused by the intermittent nature of solar energy during the day and night, as well as the problem of increased power consumption caused by increased system resistance due to the series system. In addition, since the enthalpy enhancement of the solar collector 6 and the enthalpy enhancement of the economizer 5 are combined, the enthalpy enhancement of the solar heat source and the enthalpy enhancement of the air source are decomposed into two ports, which solves the problem that the solar energy and air energy cannot be rationally utilized due to the influence of the refrigerant state. Furthermore, since the area of ​​the solar collector 6 required for gas replenishment enthalpy enhancement is much smaller than the area of ​​the solar collector 6 required for independent heating effect, the heating capacity and energy efficiency are improved, as well as the effect of delaying frost formation is achieved, thereby enhancing the application value of the solar collector 6 combined with the air source heat pump product in the home environment under low temperature conditions.

[0072] The first heat exchanger 14 in this embodiment can be a hot water storage tank, a shell-and-tube heat exchanger, a plate heat exchanger, or an indoor air conditioning unit.

[0073] In one application example, the first heat exchanger 14 can be a hot water storage tank. When the refrigerant in the refrigerant pipeline 10 flows through the hot water storage tank, it can heat the water in the hot water storage tank, thereby realizing the recovery and utilization of heat energy.

[0074] In one application example, the first heat exchanger 14 can be an indoor air conditioning unit. When the refrigerant in the refrigerant pipe 10 flows through the indoor air conditioning unit, it can release heat, thereby increasing the indoor ambient temperature.

[0075] In one application example, the first heat exchanger 14 may be a plate heat exchanger. Exemplarily, the plate heat exchanger may supply heat to other heating terminals 15, such as at least one of underfloor heating, radiators, and pool heat exchange piping.

[0076] In some embodiments, the solar collector 6 and the bypass flow path 20 have a first common pipe 11A (i.e., a common portion of the refrigerant branch 11) on the side adjacent to the refrigerant pipe 10. The heat pump assembly further includes a second throttling device 9 disposed on the first common pipe 11A for throttling the diverted refrigerant. Exemplarily, the second throttling device 9 can be an electronic expansion valve, which can regulate the refrigerant flow rate on the refrigerant branch 11.

[0077] For example, the solar collector 6 and the bypass flow path 20 can share the second common pipe 11B (i.e. the common part of the refrigerant branch 11) that introduces the refrigerant into the second flow channel 52 and returns it to the air inlet of the compressor 1, and a temperature sensor for detecting the temperature of the gaseous refrigerant can be provided on the second common pipe 11B.

[0078] In some embodiments, the heat pump assembly further includes: a first control valve 7 disposed on the flow path of the solar collector 6; and / or a second control valve 8 disposed on the bypass flow path 20. Exemplarily, both the first control valve 7 and the second control valve 8 are solenoid valves.

[0079] For example, the second heat exchanger 3 can be an outdoor heat exchanger. To improve the heat exchange efficiency of the second heat exchanger 3, a fan can be installed at the second heat exchanger 3.

[0080] For example, such as Figure 2 As shown, the heat pump enthalpy-increasing device may also be equipped with temperature sensors, including at least one of the following: a first temperature sensor 17 for detecting the temperature value at the inlet side of the first flow channel 51, a second temperature sensor 18 for detecting the temperature value at the outlet side of the first flow channel 51, and a third temperature sensor 19 for detecting the temperature value at the outlet side of the second flow channel 52. For example, the first temperature sensor 17 is located at the inlet side of the first flow channel 51, the second temperature sensor 18 is located at the outlet side of the first flow channel 51, and the third temperature sensor 19 is located on the aforementioned second common pipe 11B and downstream of the outlet of the second flow channel 52.

[0081] For example, to facilitate the installation of the heat pump assembly in this application embodiment, shut-off valves can be respectively installed on the refrigerant pipeline 10 at the inlet and outlet sides of the first heat exchanger 14. For example, Figure 2 As shown, a first shut-off valve 12 and a second shut-off valve 13 can be installed on the refrigerant line 10. After the heat pump assembly is installed in place, both the first shut-off valve 12 and the second shut-off valve 13 are in the normally open state.

[0082] It should be noted that the operating modes of the heat pump enthalpy-increasing device in this application embodiment include: a first operating mode and a second operating mode. In the first operating mode, the flow path of the solar collector 6 is opened, and the refrigerant increases the enthalpy of the compressor 1 based on the heat energy of the solar collector 6 and the economizer 5; in the second operating mode, the bypass flow path 20 is opened, and the refrigerant increases the enthalpy of the compressor 1 based on the heat energy of the economizer 5.

[0083] For example, such as Figure 3As shown, when there is sufficient sunlight, the refrigerant from compressor 1 is compressed and then passes through four-way valve 2, second shut-off valve 13, first heat exchanger 14 and first shut-off valve 12. At this time, it is divided into two paths. The main path passes through the first flow channel 51 of economizer 5 to release heat and subcool, passes through the first throttling device 4 to throttle, and enters the second heat exchanger 3 to evaporate and absorb heat. The low-temperature and low-pressure gaseous refrigerant returns to the suction port of compressor 1 after passing through four-way valve 2. The other path is refrigerant branch 11. The refrigerant after being diverted from the main path passes through the second throttling device 9 to throttle, then passes through the first control valve 7, and enters the solar collector 6 (such as a PVT panel) to absorb heat and evaporate. It then passes through the second flow channel 52 of economizer 5 to further absorb heat, ensuring no liquid return. The saturated gaseous refrigerant that comes out enters the gas injection port of compressor 1 to increase enthalpy.

[0084] For example, such as Figure 4 As shown, when there is no light or insufficient light, the refrigerant from compressor 1 is compressed and then passes through four-way valve 2, second shut-off valve 13, first heat exchanger 14 and first shut-off valve 12. At this time, it is divided into two paths. The main path passes through the first flow channel 51 of economizer 5 to release heat and subcool, passes through the first throttling device 4 to throttle, and enters the second heat exchanger 3 to evaporate and absorb heat. The low-temperature and low-pressure gaseous refrigerant returns to the suction port of compressor 1 after passing through four-way valve 2. The other path is refrigerant branch 11. The refrigerant after being diverted from the main path passes through the second throttling device 9 to throttle, then passes through the second control valve 8, and enters the second flow channel 52 of economizer 5 to absorb heat and evaporate. The saturated gaseous refrigerant that comes out enters the gas injection port of compressor 1 to increase enthalpy.

[0085] This application also provides a control method for the aforementioned heat pump enthalpy-enhancing device, which can be applied to control equipment, such as... Figure 5 As shown, the control method includes:

[0086] Step 501: Obtain the sunlight intensity level.

[0087] Step 502: Determine the target operating mode of the heat pump enthalpy-enhancing device based on the light intensity level.

[0088] Step 503: Control the heat pump enthalpy-enhancing device to operate in the target working mode.

[0089] It is understood that the control device in this application embodiment can intelligently determine the target working mode of the heat pump enthalpy-enhancing device based on the acquired light intensity level, and then intelligently adjust the operating state of the heat pump enthalpy-enhancing device, that is, intelligently select the enthalpy-enhancing method of the heat pump component. This solves the problem that solar energy and air energy cannot be rationally utilized due to the influence of refrigerant state. Furthermore, because the area of ​​the solar collector required for gas replenishment enthalpy enhancement is much smaller than the area of ​​the solar collector required for independent heating effect, it achieves the effect of improving heating capacity and energy efficiency as well as delaying frost formation, thereby enhancing the application value of solar collector combined with air source heat pump products in low-temperature conditions in the home environment.

[0090] For example, determining the target operating mode of the heat pump enthalpy-enhancing device based on the light intensity level includes:

[0091] If the light intensity level is the first level, then the target working mode is determined to be the first working mode;

[0092] If the light intensity level is level two, then the target working mode is determined to be the current working mode;

[0093] If the light intensity level is level three, then the target working mode is determined to be the second working mode;

[0094] Wherein, the light intensity of the first level > the light intensity of the second level > the light intensity of the third level; in the first working mode, the flow path of the solar collector is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer; in the second working mode, the bypass flow path is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the economizer.

[0095] It should be noted that the first level mentioned above can be understood as the sunlight intensity meeting the working conditions of the solar thermal collector, the third level mentioned above can be understood as the sunlight intensity not meeting the working conditions of the solar thermal collector, and the second level mentioned above is the transition range between the first and third levels.

[0096] In some embodiments, obtaining the sunlight intensity level includes at least one of the following:

[0097] The light intensity level is determined based on the acquired light intensity value;

[0098] The light intensity level is determined based on the temperature difference between the sun-facing and shaded sides of the solar photovoltaic heating panel.

[0099] In one application example, a radiation meter can be placed near the solar thermal collector to detect the light intensity value. In this way, the control device can determine the current light intensity level by comparing the light intensity value detected by the radiation meter with a set threshold.

[0100] In another application example, considering the high cost and large size of the radiometer, a fourth temperature sensor for detecting temperature can be installed on the sun-facing side of the solar collector, and a fifth temperature sensor for detecting temperature can be installed on the shaded side. This allows the current light intensity level to be determined based on the temperature difference between the sun-facing and shaded sides. For example, the decision to determine the light intensity level can be based on the current time. If the current time falls within a specified time period, such as 6:00 to 19:00, the control device acquires the sun-facing temperature T1 detected by the fourth temperature sensor and the shaded side temperature T2 detected by the fifth temperature sensor. If |T1-T2| < a℃, the photovoltaic power generation effect is considered insignificant, and the current light intensity level is determined to be level three; if T1-T2 > a℃, the light intensity is considered sufficient, and the current light intensity level is determined to be level one; if T1-T2 = a℃, the current light intensity level is determined to be level two. Where 'a' is the set temperature difference threshold, which can be a specific value or a range of values, and can be reasonably determined based on experimental data.

[0101] In some embodiments, controlling the heat pump enthalpy-enhancing device to operate in the first operating mode includes:

[0102] Connect the flow path of the solar thermal collector and obtain the first temperature value and the second temperature value;

[0103] If the first temperature value is less than or equal to the second temperature value, the economizer is determined to be in an overheating condition, and the bypass flow path is opened.

[0104] If the first temperature value is greater than the second temperature value, the economizer is determined to be in a subcooled condition, and the refrigerant flow rate in the refrigerant branch is adjusted based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and the set parameter threshold.

[0105] Wherein, the first temperature value is the temperature value of the refrigerant at the inlet side of the first flow channel, and the second temperature value is the temperature value of the refrigerant at the outlet side of the first flow channel.

[0106] It should be noted that if the economizer is in an overheating condition, the refrigerant in the main circuit cannot release heat when flowing through the first flow channel, making it difficult for the refrigerant in the branch circuit to effectively absorb heat when flowing through the second flow channel. This leads to a risk of liquid return for the compressor due to the enthalpy-increasing refrigerant. Therefore, a bypass flow path can be opened, for example, by controlling the second control valve to open, so that at least part of the refrigerant in the refrigerant branch circuit does not flow through the solar collector, alleviating the overheating phenomenon of the economizer and meeting the compressor's operational reliability requirements. It should be noted that at this time, both the bypass flow path and the flow path containing the solar collector can be opened simultaneously, or only the bypass flow path can be opened while the flow path containing the solar collector is closed.

[0107] It should be noted that if the economizer is not in an overheated condition, i.e., in an undercooled condition, the refrigerant flow rate in the refrigerant branch needs to be further adjusted so that the injection enthalpy pressure at the compressor's gas inlet meets the set requirements.

[0108] In practical applications, when the heat pump enthalpy-enhancing equipment operates in the first working mode, the constantly changing intensity of external sunlight causes the heat collection of the solar collector to vary with the light intensity. This results in inconsistent gaseous refrigerant states at the outlet of the second flow channel, ultimately leading to variations in the actual injection enthalpy pressure and even unsuccessful gas replenishment. In this embodiment, the control device can adjust the refrigerant flow rate in the refrigerant branch based on the parameter value characterizing the injection enthalpy pressure at the compressor's gas replenishment port and a set parameter threshold. For example, it can adjust the opening of the aforementioned second throttling device to ensure that the injection enthalpy pressure meets the set requirements.

[0109] Here, the parameter value characterizing the injection enthalpy pressure of the compressor's air inlet can be a pressure value detected by a pressure sensor or a temperature value detected by a temperature sensor.

[0110] For example, the parameter value is the refrigerant temperature value at the outlet side of the second flow channel, and the adjustment of the refrigerant flow rate in the refrigerant branch based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and a set parameter threshold includes:

[0111] If the refrigerant temperature value is greater than the set temperature threshold, then reduce the refrigerant flow rate in the refrigerant branch;

[0112] If the refrigerant temperature value is less than the set temperature threshold, then increase the refrigerant flow rate in the refrigerant branch;

[0113] If the refrigerant temperature value is equal to the set temperature threshold, then the refrigerant flow rate in the refrigerant branch is maintained.

[0114] The set temperature threshold can be reasonably determined based on experimental data. For example, the reasonable gas injection pressure value of the enthalpy-increasing compressor can be determined based on experimental data, set as P0, and P0 can be converted into the corresponding temperature threshold T0. The temperature threshold T0 can be a certain value or a range of values. This application embodiment does not limit this.

[0115] The control method of this application embodiment will be illustrated below with an application example:

[0116] In this application example, the heat pump enthalpy-enhancing device is as follows: Figure 2 As shown, the aforementioned second throttling device is an electronic expansion valve, which can adjust the refrigerant flow rate of the refrigerant branch based on the opening degree of the electronic expansion valve. The light intensity threshold Lx0 is used as the threshold for classifying light intensity levels, and the temperature threshold T0 is the saturation temperature value corresponding to the reasonable gas injection pressure value.

[0117] In this application example, the target operating mode of the heat pump enthalpy-enhancing device is determined based on the light intensity level, as follows: Figure 6 As shown, it includes:

[0118] Step 601: Obtain the current light intensity value Lx.

[0119] Here, the control device can obtain the current light intensity value Lx based on the detection value of the light intensity sensor.

[0120] Step 602: Determine the relationship between the light intensity value Lx and the light intensity threshold Lx0.

[0121] Understandably, if the light intensity value Lx > the light intensity threshold Lx0, the light intensity level is determined to be the first level, and step 603 is executed; if the light intensity value Lx = the light intensity threshold Lx0, the light intensity level is determined to be the second level, and step 604 is executed; if the light intensity value Lx < the light intensity threshold Lx0, the light intensity level is determined to be the third level, and step 605 is executed.

[0122] Step 603: Run in the first working mode.

[0123] Here, the first control valve is turned on and the second control valve is turned off, that is, the flow path where the solar collector is located is turned on and the bypass flow path is turned off. The refrigerant can increase the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer.

[0124] Step 604: Maintain the current working mode.

[0125] Step 605: Run in the second working mode.

[0126] Here, the first control valve is closed and the second control valve is open, meaning the flow path of the solar collector is closed and the bypass flow path is open, allowing the refrigerant to increase the enthalpy of the compressor based on the thermal energy of the economizer.

[0127] It should be noted that the heat pump enthalpy enhancement equipment can default to the second working mode mentioned above when it is started up.

[0128] In this application example, the heat pump enthalpy-enhancing device is controlled to operate in the first operating mode, such as... Figure 7 As shown, it includes:

[0129] Step 701: Run in the first working mode.

[0130] Here, when the light intensity level is determined to be the first level, the control device can control the first control valve to open and the second control valve to close, so that the heat pump enthalpy-increasing device operates in the first working mode. At this time, the refrigerant can increase the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer.

[0131] Step 702: Obtain the first temperature value t1 and the second temperature value t2.

[0132] Here, the control device can obtain a first temperature value t1 based on the temperature value detected by the first temperature sensor, and obtain a second temperature value t2 based on the temperature value detected by the second temperature sensor, that is, obtain the temperature value of the refrigerant at the inlet side of the first flow channel and the temperature value of the refrigerant at the outlet side of the first flow channel.

[0133] Step 703: Determine the temperature difference between the first temperature value t1 and the second temperature value t2. If the first temperature value t1 ≤ the second temperature value t2, then proceed to step 704; if the first temperature value t1 > the second temperature value t2, then proceed to step 705.

[0134] Step 704: Determine that the economizer is in an overheating condition and open the bypass flow path.

[0135] Here, if the economizer is in an overheating condition, the refrigerant in the main circuit cannot release heat when flowing through the first flow channel, making it difficult for the refrigerant in the branch circuit to effectively absorb heat when flowing through the second flow channel. This leads to a risk of liquid return for the compressor due to the enthalpy-increasing refrigerant. Therefore, a bypass flow path can be opened, for example, by controlling the second control valve to open, so that at least part of the refrigerant in the refrigerant branch circuit does not flow through the solar collector, alleviating the overheating phenomenon of the economizer and meeting the compressor's operational reliability requirements. It should be noted that at this time, both the bypass flow path and the flow path containing the solar collector can be opened simultaneously, or only the bypass flow path can be opened while the flow path containing the solar collector is closed. After executing step 704, return to step 703 until the economizer is in an undercooling condition, and then execute step 705.

[0136] Step 705: Determine that the economizer is in an undercooled condition, and determine the relationship between the third temperature value t3 and the temperature threshold T0.

[0137] Here, when the economizer is in subcooled operation, it is necessary to further adjust the refrigerant flow rate in the flow path of the solar collector based on the relationship between the third temperature value t3 and the temperature threshold T0, so that the injection enthalpy pressure at the compressor's gas inlet meets the set requirements. Specifically, if the third temperature value t3 > the temperature threshold T0, then step 706 is executed; if the third temperature value t3 = the temperature threshold T0, then step 707 is executed; if the third temperature value t3 < the temperature threshold T0, then step 708 is executed.

[0138] Step 706: Reduce the opening of the electronic expansion valve to decrease the refrigerant flow in the refrigerant branch.

[0139] Step 707: Maintain the opening of the electronic expansion valve to maintain the refrigerant flow in the refrigerant branch.

[0140] Step 708: Increase the opening of the electronic expansion valve to increase the refrigerant flow rate in the refrigerant branch.

[0141] To implement the method of the embodiments of this application, the embodiments of this application also provide a control device for a heat pump enthalpy-enhancing device. The control device for the heat pump enthalpy-enhancing device corresponds to the control method of the heat pump enthalpy-enhancing device described above. The steps in the embodiments of the control method of the heat pump enthalpy-enhancing device described above are also fully applicable to the control device embodiment of the heat pump enthalpy-enhancing device.

[0142] like Figure 8 As shown, the control device for the heat pump enthalpy enhancement equipment includes: an acquisition module 801, a determination module 802, and a control module 803. The acquisition module 801 is used to acquire the sunlight intensity level; the determination module 802 is used to determine the target operating mode of the heat pump enthalpy enhancement equipment based on the sunlight intensity level; and the control module 803 is used to control the heat pump enthalpy enhancement equipment to operate in the target operating mode.

[0143] In some embodiments, the determining module 802 is specifically used for:

[0144] If the light intensity level is the first level, then the target working mode is determined to be the first working mode;

[0145] If the light intensity level is level two, then the target working mode is determined to be the current working mode;

[0146] If the light intensity level is level three, then the target working mode is determined to be the second working mode;

[0147] Wherein, the light intensity of the first level > the light intensity of the second level > the light intensity of the third level; in the first working mode, the flow path of the solar collector is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer; in the second working mode, the bypass flow path is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the economizer.

[0148] In some embodiments, the control module 803 controls the heat pump enthalpy-enhancing device to operate in the first operating mode, including:

[0149] Connect the flow path of the solar thermal collector and obtain the first temperature value and the second temperature value;

[0150] If the first temperature value is less than or equal to the second temperature value, the economizer is determined to be in an overheating condition, and the bypass flow path is opened.

[0151] If the first temperature value is greater than the second temperature value, the economizer is determined to be in a subcooled condition, and the refrigerant flow rate in the refrigerant branch is adjusted based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and the set parameter threshold.

[0152] Wherein, the first temperature value is the temperature value of the refrigerant at the inlet side of the first flow channel, and the second temperature value is the temperature value of the refrigerant at the outlet side of the first flow channel.

[0153] In some embodiments, the parameter value is the refrigerant temperature value at the outlet side of the second flow channel. The control module 803 adjusts the refrigerant flow rate in the refrigerant branch based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and a set parameter threshold, including:

[0154] If the refrigerant temperature value is greater than the set temperature threshold, then reduce the refrigerant flow rate in the refrigerant branch;

[0155] If the refrigerant temperature value is less than the set temperature threshold, then increase the refrigerant flow rate in the refrigerant branch;

[0156] If the refrigerant temperature value is equal to the set temperature threshold, then the refrigerant flow rate in the refrigerant branch is maintained.

[0157] In practical applications, the acquisition module 801, the determination module 802, and the control module 803 can be implemented by the processor of the control device. Of course, the processor needs to run the computer program in memory to implement its functions.

[0158] It should be noted that the control device for the heat pump enthalpy-enhancing equipment provided in the above embodiments is only illustrated by the division of the above-described program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. Furthermore, the control device for the heat pump enthalpy-enhancing equipment provided in the above embodiments and the control method embodiments for the heat pump enthalpy-enhancing equipment belong to the same concept, and their specific implementation process is detailed in the method embodiments, which will not be repeated here.

[0159] Based on the hardware implementation of the above program modules, and in order to implement the method of the embodiments of this application, the embodiments of this application also provide a control device for a heat pump enthalpy-increasing device. Figure 9 This diagram only shows an exemplary structure of the control unit for the heat pump enthalpy-enhancing device, and not the entire structure. Implementation can be carried out as needed. Figure 9 The structure shown may be part or all of the structure.

[0160] like Figure 9 As shown in the embodiment of this application, the control device for a heat pump enthalpy-enhancing device includes at least one processor 901, a memory 902, and a user interface 903. The various components in the control device 900 of the heat pump enthalpy-enhancing device are coupled together via a bus system 904. It can be understood that the bus system 904 is used to realize communication between these components. In addition to a data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 9 The general designated all buses as Bus System 904.

[0161] The user interface 903 may include a monitor, keyboard, mouse, trackball, click wheel, buttons, touchpad, or touch screen.

[0162] The memory 902 in this embodiment is used to store various types of data to support the operation of the control device of the heat pump enthalpy-enhancing device. Examples of such data include any computer program used to operate on the control device of the heat pump enthalpy-enhancing device.

[0163] The control method for the heat pump enthalpy-enhancing device disclosed in this application embodiment can be applied to, or implemented by, the processor 901. The processor 901 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the control method for the heat pump enthalpy-enhancing device can be completed by the integrated logic circuitry in the hardware of the processor 901 or by instructions in software form. The processor 901 described above can be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 901 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in memory 902. The processor 901 reads the information in memory 902 and, in conjunction with its hardware, completes the steps of the control method for the heat pump enthalpy-increasing device provided in the embodiments of this application.

[0164] In an exemplary embodiment, the control device of the heat pump enthalpy-enhancing device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0165] It is understood that memory 902 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0166] This application also provides a heat pump enthalpy enhancement system, including a heat pump enthalpy enhancement device and a control device according to this application embodiment. The control device can determine the target operating mode of the heat pump enthalpy enhancement device based on the acquired light intensity level, and control the heat pump enthalpy enhancement device to operate in the target operating mode. It should be noted that the configuration of the heat pump enthalpy enhancement device can be referred to the foregoing description, and the control logic of the control device can be referred to the foregoing description, and will not be repeated here.

[0167] For example, the heat pump enthalpy increase may include sensors, such as at least one of the following: a first temperature sensor for detecting the temperature value at the inlet side of the first flow channel, a second temperature sensor for detecting the temperature value at the outlet side of the first flow channel, and a third temperature sensor for detecting the temperature value at the outlet side of the second flow channel.

[0168] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory 902 that stores a computer program. The computer program can be executed by a processor 901 of a control device to complete the steps described in the method of this application embodiment. The computer-readable storage medium can be a ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0169] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0170] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0171] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A heat pump enthalpy-increasing device, characterized in that, include: A heat pump assembly, comprising: a first heat exchanger, a second heat exchanger, a compressor, a first throttling device, and a refrigerant pipeline, wherein the refrigerant pipeline is sequentially connected to the compressor, the first heat exchanger, the first throttling device, and the second heat exchanger; A solar thermal collector module for converting at least solar energy into thermal energy, the solar thermal collector module including a refrigerant branch, a solar thermal collector device disposed in the refrigerant branch, and a bypass flow path; An economizer, the economizer having a first flow channel and a second flow channel; The first flow channel is disposed in the refrigerant pipeline and is connected in series between the first heat exchanger and the first throttling device. The first end of the refrigerant branch is connected to the refrigerant pipeline between the first flow channel and the first heat exchanger. The second end of the refrigerant branch is connected to the first end of the second flow channel. The second end of the second flow channel is connected to the gas injection port of the compressor. The bypass flow path is connected between the two ends of the refrigerant branch. The refrigerant compressed by the compressor flows to the first heat exchanger through a preset four-way valve to exchange heat and form condensed liquid refrigerant. The liquid refrigerant enters the first flow channel through the refrigerant pipeline to release heat. After releasing heat, the liquid refrigerant is depressurized by the first throttling device and becomes a low-temperature, low-pressure two-phase fluid. The low-temperature, low-pressure two-phase fluid flows through the second heat exchanger to absorb heat from the outdoor air source. After absorbing heat, the low-temperature, low-pressure two-phase fluid flows to the air inlet of the compressor through the preset four-way valve. The refrigerant that is diverted from the refrigerant pipeline through the refrigerant branch flows back to the second flow channel through the solar collector and / or the bypass flow path to absorb heat and evaporate. The evaporated gaseous refrigerant flows to the air inlet of the compressor.

2. The heat pump enthalpy-increasing device according to claim 1, characterized in that, The solar thermal collector module also includes: The second throttling device is installed on the refrigerant branch, and the bypass flow path and the solar collector are both connected in series with the second throttling device.

3. The heat pump enthalpy-increasing device according to claim 1, characterized in that, The solar thermal collector module also includes a first control valve and a second control valve. The first control valve is located in the refrigerant branch, and the second control valve is located in the bypass flow path. The flow path containing the first control valve and the solar thermal collector is connected in parallel with the flow path containing the second control valve.

4. A control method for a heat pump enthalpy-enhancing device as described in any one of claims 1 to 3, characterized in that, include: Obtain the intensity level of sunlight; The target operating mode of the heat pump enthalpy-enhancing equipment is determined based on the light intensity level. The heat pump enthalpy-enhancing device is controlled to operate in the target working mode.

5. The method according to claim 4, characterized in that, Determining the target operating mode of the heat pump enthalpy-enhancing equipment based on the light intensity level includes: If the light intensity level is the first level, then the target working mode is determined to be the first working mode; If the light intensity level is level two, then the target working mode is determined to be the current working mode; If the light intensity level is level three, then the target working mode is determined to be the second working mode; Wherein, the light intensity of the first level > the light intensity of the second level > the light intensity of the third level; in the first working mode, the flow path of the solar collector is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the solar collector and the heat energy of the economizer; in the second working mode, the bypass flow path is opened, and the refrigerant increases the enthalpy of the compressor based on the heat energy of the economizer.

6. The method according to claim 5, characterized in that, Controlling the heat pump enthalpy-enhancing device to operate in the first working mode includes: Connect the flow path of the solar thermal collector and obtain the first temperature value and the second temperature value; If the first temperature value is less than or equal to the second temperature value, the economizer is determined to be in an overheating condition, and the bypass flow path is opened. If the first temperature value is greater than the second temperature value, the economizer is determined to be in a subcooled condition, and the refrigerant flow rate in the refrigerant branch is adjusted based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and the set parameter threshold. Wherein, the first temperature value is the temperature value of the refrigerant at the inlet side of the first flow channel, and the second temperature value is the temperature value of the refrigerant at the outlet side of the first flow channel.

7. The method according to claim 6, characterized in that, The parameter value is the refrigerant temperature value at the outlet side of the second flow channel. Adjusting the refrigerant flow rate in the refrigerant branch based on the parameter value characterizing the injection enthalpy pressure of the compressor's gas inlet and a set parameter threshold includes: If the refrigerant temperature value is greater than the set temperature threshold, then reduce the refrigerant flow rate in the refrigerant branch; If the refrigerant temperature value is less than the set temperature threshold, then increase the refrigerant flow rate in the refrigerant branch; If the refrigerant temperature value is equal to the set temperature threshold, then the refrigerant flow rate in the refrigerant branch is maintained.

8. A control device for a heat pump enthalpy-increasing device as described in any one of claims 1 to 3, characterized in that, include: The acquisition module is used to acquire the intensity level of sunlight. The determination module is used to determine the target operating mode of the heat pump enthalpy-enhancing equipment based on the light intensity level; The control module is used to control the heat pump enthalpy-enhancing equipment to operate in the target working mode.

9. A control device for a heat pump enthalpy-increasing device as described in any one of claims 1 to 3, characterized in that, include: A processor and memory for storing computer programs that can run on the processor, wherein, The processor, when running a computer program, performs the steps of the method according to any one of claims 4 to 7.

10. A heat collection system, characterized in that, It includes the heat pump enthalpy-enhancing device as described in any one of claims 1 to 3 and the control device as described in claim 9.

11. A storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 4 to 7.

Images