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CN-121977302-A - Refrigerating and heating circulation system with refrigerant pump and compressor

CN121977302ACN 121977302 ACN121977302 ACN 121977302ACN-121977302-A

Abstract

The application relates to the technical field of heat management, and discloses a refrigerating and heating circulating system with a refrigerant pump and a compressor, which comprises a first loop module, a second loop module and a four-way valve, wherein the first loop module is communicated with a condenser, a refrigerant pump and an evaporator through a first pipeline, the first pipeline is provided with a first interface and a second interface, the refrigerant pump is also connected with a bidirectional channel in parallel, the second loop module is communicated with the compressor and a unidirectional channel through a second pipeline, the second pipeline is provided with a third interface and a fourth interface, the compressor is connected with the unidirectional channel in parallel and is communicated between the third interface and the fourth interface, the four-way valve is provided with a second channel and is switched between a first valve position and a second valve position, the first valve position is respectively communicated between the second interface and the third interface and between the fourth interface and the first interface through the two channels, and the second valve position is respectively communicated between the first interface and the third interface and the fourth interface and the second interface through the two channels.

Inventors

  • XIAO QINENG
  • LI BANG
  • XIE CHUNHUI

Assignees

  • 深圳昂湃技术股份有限公司

Dates

Publication Date
20260505
Application Date
20260213

Claims (10)

  1. 1. A refrigerating and heating circulation system with a refrigerant pump and a compressor is characterized in that the system is used for flowing a refrigerant and comprises: The first loop module comprises a first pipeline, a condenser, a refrigerant pump and an evaporator, wherein the first pipeline is provided with a first interface and a second interface, the first pipeline is sequentially communicated with the condenser, the refrigerant pump and the evaporator in the extending direction from the first interface to the second interface, and the refrigerant pump is also connected with a bidirectional channel in parallel; A second loop module including a second pipeline, a compressor and a unidirectional channel, wherein the second pipeline has a third interface and a fourth interface, the compressor is connected in parallel with the unidirectional channel and is communicated between the third interface and the fourth interface, the unidirectional channel only allows the refrigerant to pass from the third interface to the fourth interface, and The four-way valve is provided with two channels and can be switched between a first valve position and a second valve position, wherein the two channels are respectively communicated between the second interface and the third interface and between the fourth interface and the first interface in the first valve position, and the two channels are respectively communicated between the first interface and the third interface and between the fourth interface and the second interface in the second valve position; In the refrigeration mode, the four-way valve is positioned at the first valve position, and the two-way channel is positioned at a conducting state; In the heating mode, the four-way valve is positioned at the second valve position, and the two-way channel is positioned at a conducting state; in the mixing mode, the four-way valve is positioned at the first valve position, the two-way channel is positioned at the closed state, and the refrigerant pump is positioned at the running state.
  2. 2. The refrigeration and heating cycle system with a refrigerant pump and a compressor as set forth in claim 1, wherein a first expansion valve and a second expansion valve are disposed in the first pipe, said first expansion valve is connected in parallel with a first check valve and is connected between said refrigerant pump and said evaporator, said first check valve only allows said refrigerant to flow from said evaporator to said refrigerant pump, and said second expansion valve is connected in parallel with a second check valve and is connected between said condenser and said refrigerant pump, said second check valve only allows said refrigerant to flow from said condenser to said refrigerant pump.
  3. 3. The refrigeration and heating cycle system with a refrigerant pump and a compressor as recited in claim 1, wherein a wind power unit is provided outside said condenser.
  4. 4. A refrigeration and heating cycle system having a refrigerant pump and a compressor as recited in claim 3 wherein said wind unit includes one or more fans.
  5. 5. The refrigeration and heating cycle system with a refrigerant pump and a compressor as recited in any one of claims 1-4, wherein a spray unit is provided outside said condenser.
  6. 6. The refrigeration and heating cycle system with a refrigerant pump and a compressor as set forth in claim 5, wherein said spray unit is one or more pipes and communicates with a plurality of nozzles or nozzle holes for forming a gas-liquid mixed fluid by atomization to assist said condenser in cooling or dropping temperature.
  7. 7. The refrigeration and heating cycle system with a refrigerant pump and a compressor as set forth in claim 1, wherein said refrigerant pump is provided with a check valve for control in a direction of communication to said evaporator.
  8. 8. The refrigeration and heating cycle system with a refrigerant pump and a compressor as recited in claim 1 wherein said evaporator is in communication with a two-way water regulating valve.
  9. 9. The refrigeration and heating cycle system with a refrigerant pump and a compressor as set forth in claim 1, wherein said compressor is provided with a check valve for control in a direction of communication to said fourth port.
  10. 10. The refrigeration and heating cycle system with a refrigerant pump and a compressor as recited in claim 1, wherein said four-way valve is a four-port two-position valve.

Description

Refrigerating and heating circulation system with refrigerant pump and compressor Technical Field The application relates to the technical field of heat management, in particular to a refrigerating and heating circulating system with a refrigerant pump and a compressor. Background The existing refrigeration and heating circulation system adopts a single refrigeration or heating driving mode, and the structure and the operation mode are approximately as follows: In the vapor compression refrigeration system, a compressor is used as a main driving element, a low-pressure gaseous refrigerant is compressed to enable the refrigerant to be in a high-pressure high-temperature state, the refrigerant is subjected to heat release and condensation through a condenser to be in a high-pressure liquid state, and then the refrigerant is subjected to throttling and depressurization through an expansion valve to enable the refrigerant to be in a low-pressure low-temperature state and then enter an evaporator to absorb heat and evaporate, so that the refrigeration cycle is completed. Secondly, a refrigerant pump (fluorine pump) is adopted to push the liquid refrigerant to circulate, so that the refrigerant is conveyed in the system and is matched with a heat exchanger to perform heat exchange. In the existing refrigeration or heating system, the problems of insufficient energy efficiency adjustment elasticity, limited adaptability to different working conditions and the like generally exist, and a system architecture capable of enabling a refrigerant pump to be matched with a compressor through structural configuration and selectively changing a refrigerant circulation path according to operation requirements so as to improve overall refrigeration and heating efficiency and system reliability is lacking. Disclosure of Invention In view of the above technical problems, an object of the present application is to provide a refrigeration and heating cycle system with a refrigerant pump and a compressor, which uses a four-way valve to control two loops to switch the modes of refrigeration and heating functions, and further mix the compressor and the refrigerant pump, thereby integrating multiple functions and modes and having energy-saving measures, so as to achieve the high-efficiency application requiring cooling or heating. In order to achieve the above object, the present application provides a refrigeration and heating cycle system having a refrigerant pump and a compressor for flowing a refrigerant, comprising: The first loop module comprises a first pipeline, a condenser, a refrigerant pump and an evaporator, wherein the first pipeline is provided with a first interface and a second interface, the first pipeline is sequentially communicated with the condenser, the refrigerant pump and the evaporator in the extending direction from the first interface to the second interface, and the refrigerant pump is also connected with a bidirectional channel in parallel; A second loop module including a second pipeline, a compressor and a unidirectional channel, wherein the second pipeline has a third interface and a fourth interface, the compressor is connected in parallel with the unidirectional channel and is communicated between the third interface and the fourth interface, the unidirectional channel only allows the refrigerant to pass from the third interface to the fourth interface, and The four-way valve is provided with two channels and can be switched between a first valve position and a second valve position, wherein the two channels are respectively communicated between the second interface and the third interface and between the fourth interface and the first interface in the first valve position, and the two channels are respectively communicated between the first interface and the third interface and between the fourth interface and the second interface in the second valve position; The four-way valve is in the first valve position and the two-way channel is in a conducting state in a refrigerating mode, the four-way valve is in the second valve position and the two-way channel is in a conducting state in a heating mode, the four-way valve is in the first valve position and the two-way channel is in a closing state in a mixing mode, and the refrigerant pump is in an operating state. In some embodiments, a first expansion valve and a second expansion valve are disposed in the first pipeline, the first expansion valve is connected in parallel with a first check valve and is communicated between the refrigerant pump and the evaporator, the first check valve only allows the refrigerant to flow from the evaporator to the refrigerant pump, the second expansion valve is connected in parallel with a second check valve and is communicated between the condenser and the refrigerant pump, and the second check valve only allows the refrigerant to flow from the condenser to the refrigerant pump. In some embodiments, a wind unit is prov