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CN-122015365-A - Integrated dual-medium heat pump temperature control system, method and planting system

CN122015365ACN 122015365 ACN122015365 ACN 122015365ACN-122015365-A

Abstract

The invention provides an integrated dual-medium heat pump temperature control system, an integrated dual-medium heat pump temperature control method and an integrated dual-medium heat pump planting system, which comprise a refrigerant loop, a heat dissipation unit, an outdoor heat exchange module, a first heat exchange medium loop, a second heat exchange medium loop and a valve assembly, wherein the refrigerant loop is arranged in an indoor unit and comprises a compressor, a condenser module, a throttling device and an evaporator module which are sequentially connected, the heat dissipation unit is arranged in the indoor unit and is in heat exchange connection with the condenser module and the evaporator module, the first heat exchange medium loop is in heat exchange connection with the condenser module and the outdoor heat exchange module, the second heat exchange medium loop is in heat exchange connection with the evaporator module and the outdoor heat exchange module, and the valve assembly is used for switching on-off of pipelines inside the condenser module and the evaporator module. According to the invention, the complete refrigerant loop is integrally packaged in advance, so that the leakage risk caused by field installation is avoided, meanwhile, the mode switching is realized by changing the refrigerant flow path, the four-way reversing valve serving as a core fault source is eliminated, the pressure impact during reversing is avoided, and the reliability of long-term operation of the system is greatly improved.

Inventors

  • ZHANG LIN

Assignees

  • 张�林

Dates

Publication Date
20260512
Application Date
20260312

Claims (17)

  1. 1. An integrated dual-medium heat pump temperature control system, comprising: The pre-packaged refrigerant loop (1), wherein the refrigerant loop (1) is integrally arranged in an indoor unit and comprises a compressor (2), a condenser module (3), a throttling device (9) and an evaporator module (13) which are sequentially connected; The heat dissipation unit is arranged in the indoor unit and used for adjusting indoor temperature, and is in heat exchange connection with the condenser module (3) and the evaporator module (13); an outdoor heat exchange module (17); A first heat exchange medium loop (16), wherein the first heat exchange medium loop (16) is in heat exchange connection with the condenser module (3) and the outdoor heat exchange module (17) at the same time; A second heat exchange medium circuit (18), wherein the second heat exchange medium circuit (18) is in heat exchange connection with the evaporator module (13) and the outdoor heat exchange module (17) at the same time; The valve component is used for switching on and off of the internal pipelines of the condenser module (3) and the evaporator module (13) so that the condenser module (3) is in heat exchange connection with the heat radiating unit and the first heat exchange medium loop (16) in an alternative mode, and the evaporator module (13) is in heat exchange connection with the heat radiating unit and the second heat exchange medium loop (18) in an alternative mode.
  2. 2. An integrated dual medium heat pump temperature control system according to claim 1, characterized in that the condenser module (3) is internally provided with: The first heat exchange pipeline (5) is used for being in heat exchange connection with the heat radiating unit, and the second heat exchange pipeline (7) is used for being in heat exchange connection with the first heat exchange medium loop (16).
  3. 3. An integrated dual medium heat pump temperature control system according to claim 2, characterized in that the evaporator module (13) is internally provided with: the third heat exchange line (11) is connected in a heat exchange manner to the heat dissipating unit, and the fourth heat exchange line (14) is connected in a heat exchange manner to the second heat exchange medium circuit (18).
  4. 4. An integrated dual medium heat pump temperature control system according to claim 1, characterized in that the throttling means (9) comprises one capillary tube or at least two capillary tubes of different tube diameters arranged in parallel.
  5. 5. The integrated dual-medium heat pump temperature control system according to claim 4, wherein the throttling device (9) is formed by connecting a thin pipe and a thick pipe in parallel, and is controlled by an electromagnetic valve to realize three throttling gears.
  6. 6. The integrated dual-medium heat pump temperature control system according to claim 4, wherein the throttling device (9) is formed by connecting three capillaries with different diameters in parallel, and is controlled by electromagnetic valve combination to realize seven throttling gears.
  7. 7. An integrated dual medium heat pump temperature control system according to claim 3, characterized in that the heat dissipating unit comprises an energy storing unit, a first heat exchanging pipe (5) of the condenser module (3) and a third heat exchanging pipe (14) of the evaporator module (13) are arranged inside.
  8. 8. The integrated dual-medium heat pump temperature control system of claim 7, wherein the energy storage unit comprises an energy storage water tank having a volume of 10-2000 liters.
  9. 9. The integrated dual-medium heat pump temperature control system of claim 3 wherein the energy storage unit is a phase change energy storage unit comprising a phase change energy storage material.
  10. 10. An integrated dual-medium heat pump temperature control system according to claim 3, wherein antifreeze is circulated in the first heat exchange medium circuit (16) and the second heat exchange medium circuit (18); The first heat exchange medium loop (16) comprises a first antifreeze tank (8), a second heat exchange pipeline (7) of the condenser module (3) is arranged inside the first heat exchange medium loop, the second heat exchange medium pipeline (17) comprises a second antifreeze tank (15), and a fourth heat exchange pipeline (14) of the evaporator module (13) is arranged inside the second heat exchange medium loop.
  11. 11. The integrated dual medium heat pump temperature control system according to claim 10, wherein the second antifreeze tank (15) comprises a metal housing.
  12. 12. An integrated dual-medium heat pump temperature control method for realizing cooling, which is characterized by being applied to the integrated dual-medium heat pump temperature control system as claimed in any one of claims 1-11, comprising the following steps: -controlling a valve assembly to heat said first heat exchange medium circuit (16) in heat exchange relationship with a condenser module (3) to be heated; the outdoor heat exchange module (17) is controlled to be started so as to exchange heat with the outdoor, and the first heat exchange medium loop (16) releases heat to the outdoor; the refrigerant flows out of the condenser module (3) and enters the evaporator module (13) after passing through the throttling device (9), and the valve assembly is controlled to enable the heat radiating unit to exchange heat with the evaporator module (13), so that the indoor unit is cooled; The compressor (2) works to make the refrigerant flow back to the compressor (2) and enter the next cycle.
  13. 13. The integrated dual-medium heat pump temperature control method of claim 12, further comprising the step of dehumidification: after the refrigerant enters the evaporator module (13), controlling the valve assembly to cool a second heat exchange medium box body of the second heat exchange medium loop (18); when the temperature of the second heat exchange medium box body is reduced below the dew point, a ventilation fan outside the second heat exchange medium box body shell is turned on, and moisture in the air is condensed into water when flowing through the second heat exchange medium box body shell, so that the relative humidity of the air is reduced; And when the temperature of the second heat exchange medium box body reaches the temperature corresponding to the set relative humidity, controlling the valve assembly or stopping the operation of the compressor (2), and stopping continuously cooling the second heat exchange medium box body.
  14. 14. An integrated dual-medium heat pump temperature control method for realizing temperature rise, which is characterized by being applied to the integrated dual-medium heat pump temperature control system as claimed in any one of claims 1-11, comprising the following steps: The control valve component is used for enabling the heat radiating unit and the condenser module (3) to exchange heat and be heated, so that the temperature of the heat internal unit is raised, and a refrigerant flows out of the condenser module (3) and enters the evaporator module (13) after passing through the throttling device (9); a control valve assembly, which enables the second heat exchange medium loop (18) to exchange heat with the evaporator module (13) and enables the refrigerant to absorb heat from the second heat exchange medium loop (18); The outdoor heat exchange module (17) is controlled to start so as to exchange heat with the outdoor, and the second heat exchange medium loop (18) absorbs heat to the outdoor; The compressor (2) works to make the refrigerant flow back to the compressor (2) and enter the next cycle.
  15. 15. The integrated dual medium heat pump temperature control method of claim 14, further comprising the step of defrosting: Monitoring the frosting state of the outdoor heat exchange module (17) in a heating mode; And when the outdoor heat exchange module (17) is judged to be frosted, stopping heat exchange between the second heat exchange medium loop (18) and the outdoor heat exchange module (17), controlling the valve assembly to enable the condenser module (3) to exchange heat with the first heat exchange medium loop (16), and circulating to the outdoor heat exchange module (17) so as to heat and defrost the outdoor heat exchange module (17).
  16. 16. The integrated dual-medium heat pump temperature control method of claim 14, further comprising the step of dehumidification: after the refrigerant enters the evaporator module (13), controlling the valve assembly to cool a second heat exchange medium box body of the second heat exchange medium loop (18); when the temperature of the second heat exchange medium box body is reduced below the dew point, the ventilation fan outside the second heat exchange medium box body is turned on, and moisture in the air condenses into water when flowing through the second heat exchange medium box body, so that the relative humidity of the air is reduced.
  17. 17. An indoor planting system is characterized by comprising the integrated dual-medium heat pump temperature control system according to any one of claims 1-11, wherein the heat radiating unit adopts an energy storage water tank.

Description

Integrated dual-medium heat pump temperature control system, method and planting system Technical Field The invention relates to the technical field of heat pumps, in particular to an integrated dual-medium heat pump temperature control system, an integrated dual-medium heat pump temperature control method and an integrated dual-medium heat pump planting system. Background The heat pump system is widely used as an efficient energy transfer device in the fields of air conditioning, heating and the like. The existing split heat pump system generally consists of an outdoor unit and an indoor unit, which are connected through a refrigerant loop. The structure requires a series of complex operations such as wall penetration, welding, vacuumizing, refrigerant filling and the like of the pipeline at the installation site, so that the installation cost is high and the operation must be finished by professionals. More importantly, the welding points and the connecting joints on site are the main hidden hazards of refrigerant leakage, and the long-term operation reliability of the system is seriously affected. In order to simplify the installation, some solutions have also been presented in the prior art, in which the refrigerant circuit is integrated integrally in a single unit, and the energy exchange is carried out with the terminal equipment through a secondary medium such as water. However, these systems still generally rely on conventional four-way reversing valves in achieving switching between cooling and heating modes. The four-way reversing valve is a mechanical moving part with a complex structure, and can generate severe pressure impact when switching the flow direction of the refrigerant, which is easy to damage the valve and a pipeline welding point, shortens the service life of the system, and is another main source of system faults and refrigerant leakage. Furthermore, to accommodate different ambient temperatures and load demands, the prior art generally employs electronic expansion valves in combination with pressure sensors to achieve precise regulation of refrigerant flow, but this results in significant increases in system hardware costs and complexity of control logic. In addition, during heating operation in winter, the surface of the outdoor heat exchanger is easy to frost, and the heat exchange efficiency is seriously affected. The traditional system adopts reverse circulation defrosting, namely, the system is switched to a refrigeration mode briefly, and the outdoor unit is defrosted by using high-temperature refrigerant. The defrosting mode is low in defrosting efficiency and long in time consumption, and can interrupt indoor heat supply, even the indoor temperature is reduced temporarily, and stability of the system and comfort of users are affected. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide an integrated dual-medium heat pump temperature control system, an integrated dual-medium heat pump temperature control method and an integrated dual-medium heat pump planting system. The integrated dual-medium heat pump temperature control system provided by the invention comprises: The pre-packaged refrigerant loop is integrally arranged at indoor temperature and comprises a compressor, a condenser module, a throttling device and an evaporator module which are sequentially connected; The heat dissipation unit is arranged in the indoor unit and used for adjusting the indoor air temperature, and is in heat exchange connection with the condenser module and the evaporator module; An outdoor heat exchange module; The first heat exchange medium loop is in heat exchange connection with the condenser module and the outdoor heat exchange module at the same time; The second heat exchange medium loop is in heat exchange connection with the evaporator module and the outdoor heat exchange module at the same time; the valve component is used for switching on and off of the internal pipelines of the condenser module and the evaporator module, so that the condenser module is in heat exchange connection with the heat radiating unit and the first heat exchange medium loop in an alternative mode, and the evaporator module is in heat exchange connection with the heat radiating unit and the second heat exchange medium loop in an alternative mode. Preferably, the condenser module is internally provided with: The first heat exchange pipeline is used for being in heat exchange connection with the heat radiating unit, and the second heat exchange pipeline is used for being in heat exchange connection with the first heat exchange medium loop. Preferably, the evaporator module is internally provided with: The third heat exchange pipeline is used for being in heat exchange connection with the heat radiating unit, and the fourth heat exchange pipeline is used for being in heat exchange connection with the second heat exchange medium loop. Preferably, the throttling device compr