Refrigerant adjusting device based on electromagnetic valve

Abstract

The utility model provides a refrigerant adjusting device based on an electromagnetic valve, and relates to the technical field of refrigeration and fluid control. The device comprises a liquid storage tank, a four-way electromagnetic reversing valve and a transmission pipeline. The liquid storage tank is used for storing refrigerants, and the four-way electromagnetic directional valve is arranged on the liquid storage tank and comprises an internal circulation electromagnetic directional valve and a full circulation electromagnetic directional valve. The liquid storage tank is communicated with an external refrigerating device through the conveying pipeline, and circulating conveying of refrigerants is achieved. The internal circulation electromagnetic directional valve controls circulation of refrigerants in the liquid storage tank, and the full circulation electromagnetic directional valve controls circulation of the refrigerants between the liquid storage tank and the external refrigerating device. By accurately controlling the on-off state of the electromagnetic directional valve, the device effectively solves the problem of explosion of the gun line liquid cooling pipe caused by backflow of high-pressure liquid in the liquid storage tank after the refrigeration system is shut down, improves the safety and stability of the refrigeration system, and ensures the normal operation of the system.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration and fluid control technical field, specifically, relate to a refrigerant adjusting device based on solenoid valve. BACKGROUND

[0002] With the continuous development of industrial technology, especially in the refrigeration and air conditioning industry, the stability, safety and energy efficiency ratio of the equipment are increasingly improved. As a key component in the refrigeration system, the performance of the gun line liquid cooling pipe directly affects the operation efficiency and safety of the whole system. However, the plastic material liquid cooling pipe commonly used in the industry has relatively weak pressure resistance, and often faces the risk of explosion when the high-pressure liquid backflows after shutdown, which not only affects the normal operation of the equipment, but also may cause safety hazards, becoming an important factor restricting the further development of the industry.

[0003] In order to solve the problem of insufficient pressure resistance of gun line liquid cooling pipe, the traditional technology mainly adopts a series of methods to enhance the strength of materials or improve the structure design. For example, by using higher strength plastic material or composite material to manufacture liquid cooling pipe, the pressure resistance performance is improved. In addition, some technologies optimize the structure design of liquid cooling pipe, such as increasing the wall thickness or using special shape, to enhance its pressure bearing capacity. However, these methods, although to some extent, alleviate the problem, but not fundamentally solve the problem of insufficient pressure resistance and potential safety risk caused by high-pressure liquid backflow after shutdown.

[0004] In summary, how to solve the technical problem of gun line liquid cooling pipe explosion caused by high-pressure liquid backflow of liquid storage tank after shutdown of refrigeration system is an urgent problem to be solved. Utility model content

[0005] The main purpose of the utility model is to provide a refrigerant adjusting device based on solenoid valve, to at least solve the technical problem of gun line liquid cooling pipe explosion caused by high-pressure liquid backflow of liquid storage tank after shutdown of refrigeration system, so as to effectively prevent the explosion risk caused by high-pressure liquid backflow of liquid storage tank after shutdown, and significantly improve the safety and stability of the whole refrigeration system.

[0006] In order to achieve the above purpose, the utility model provides a refrigerant adjusting device based on solenoid valve, which comprises:

[0007] Liquid storage tank, the liquid storage tank is used for storing refrigerant;

[0008] Four-way electromagnetic reversing valve, the four-way electromagnetic reversing valve is arranged on the liquid storage tank, and the four-way electromagnetic reversing valve comprises: inner circulation electromagnetic reversing valve and full circulation electromagnetic reversing valve;

[0009] A transmission pipeline, the liquid storage tank is connected with an external refrigeration device through the four-way electromagnetic reversing valve and the transmission pipeline to make the refrigerant stored in the liquid storage tank circulated to the external refrigeration device through the four-way electromagnetic reversing valve;

[0010] The inner circulation electromagnetic reversing valve is connected with the liquid storage tank through a transmission pipeline, and the full circulation electromagnetic reversing valve is connected with the external refrigeration device, the liquid storage tank and the four-way electromagnetic reversing valve through a transmission pipeline; the inner circulation electromagnetic reversing valve is used to make the refrigerant flow in the liquid storage tank and the full circulation electromagnetic reversing valve through the transmission pipeline by closing the inner circulation electromagnetic reversing valve and opening the full circulation electromagnetic reversing valve, and the full circulation electromagnetic reversing valve is used to make the refrigerant flow between the external refrigeration device, the liquid storage tank and the inner circulation electromagnetic reversing valve through the transmission pipeline by closing the full circulation electromagnetic reversing valve and opening the inner circulation electromagnetic reversing valve.

[0011] Further, the adjusting device further comprises a bracket, the bracket is fixedly installed on the liquid storage tank, and the four-way electromagnetic reversing valve is fixedly installed on the bracket, so that the liquid storage tank and the four-way electromagnetic reversing valve are fixedly connected.

[0012] Further, the transmission pipeline comprises:

[0013] A first transmission pipeline and a second transmission pipeline, one end of the first transmission pipeline and the second transmission pipeline is communicated with the four-way electromagnetic reversing valve, and the other end of the first transmission pipeline and the second transmission pipeline is communicated with two preset holes on the liquid storage tank respectively;

[0014] A third transmission pipeline, one end of the third transmission pipeline is communicated with a condenser of the external refrigeration device to input the refrigerant, and the other end of the third transmission pipeline is communicated with the four-way electromagnetic reversing valve;

[0015] A fourth transmission pipeline, one end of the fourth transmission pipeline is communicated with an electronic expansion valve of the external refrigeration device to output the refrigerant, and the other end of the fourth transmission pipeline is communicated with the four-way electromagnetic reversing valve.

[0016] Further, the inner circulation electromagnetic reversing valve comprises:

[0017] A first electromagnetic reversing valve, the first electromagnetic reversing valve is communicated with the corresponding preset hole on the liquid storage tank through the first transmission pipeline;

[0018] A second electromagnetic reversing valve, which is communicated with a corresponding preset hole on the liquid storage tank through the second transmission pipeline so as to make the refrigerant flow in the liquid storage tank and the four-way electromagnetic reversing valve by closing the first electromagnetic reversing valve and the second electromagnetic reversing valve and opening the full-cycle electromagnetic reversing valve.

[0019] Further, the full-cycle electromagnetic reversing valve comprises:

[0020] A third electromagnetic reversing valve, which is communicated with a condenser of the external refrigeration device through the third transmission pipeline to input the refrigerant;

[0021] A fourth electromagnetic reversing valve, which is communicated with an electronic expansion valve of the external refrigeration device through the fourth transmission pipeline so as to make the refrigerant flow between the external refrigeration device, the liquid storage tank and the four-way electromagnetic reversing valve by closing the third electromagnetic reversing valve and the fourth electromagnetic reversing valve and opening the internal-cycle electromagnetic reversing valve.

[0022] The utility model provides a refrigerant adjusting device based on electromagnetic valve, and the device comprises a liquid storage tank, a four-way electromagnetic reversing valve and a transmission pipeline. The liquid storage tank is used for storing refrigerant and is the core component of the device. The four-way electromagnetic reversing valve is arranged on the liquid storage tank, and the four-way electromagnetic reversing valve comprises an internal-cycle electromagnetic reversing valve and a full-cycle electromagnetic reversing valve and is used for controlling the flow direction of refrigerant. The transmission pipeline connects the liquid storage tank, the four-way electromagnetic reversing valve and an external refrigeration device to realize the circulating delivery of refrigerant. The internal-cycle electromagnetic reversing valve is connected with the liquid storage tank through the transmission pipeline and is used for controlling the circulation of refrigerant in the liquid storage tank. The full-cycle electromagnetic reversing valve is connected with the external refrigeration device, the liquid storage tank and the four-way electromagnetic reversing valve and controls the circulation of refrigerant between the liquid storage tank and the external refrigeration device. By accurately controlling the on-off state of the two electromagnetic reversing valves, the device can effectively prevent the risk of explosion caused by the backflow of high-pressure liquid in the liquid storage tank after the refrigeration system stops and significantly improves the safety and stability of the refrigeration system. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the present application, and together with the description of the present application, serve to explain the present application. In the drawings:

[0024] Figure 1 is a schematic view of a refrigerant adjusting device based on an electromagnetic valve according to an embodiment of the present application;

[0025] Figure 2 is a connection schematic view of a four-way electromagnetic reversing valve in a refrigerant adjusting device based on an electromagnetic valve according to an embodiment of the present application;

[0026] 10, liquid storage tank; 20, support; 30, four-way electromagnetic reversing valve; 31, internal circulation electromagnetic reversing valve; 311, first electromagnetic reversing valve; 312, second electromagnetic reversing valve; 32, full circulation electromagnetic reversing valve; 321, third electromagnetic reversing valve; 322, fourth electromagnetic reversing valve; 40, transmission pipeline; 41, first transmission pipeline; 42, second transmission pipeline; 43, third transmission pipeline; 44, fourth transmission pipeline. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] According to the refrigerant adjusting device based on the electromagnetic valve provided in the embodiment of the present application, as shown in the figure, the present application provides a refrigerant adjusting device based on the electromagnetic valve, which comprises a liquid storage tank 10, a four-way electromagnetic reversing valve 30 and a transmission pipeline 40. Figure 1 The liquid storage tank 10 is used for storing refrigerant, and the four-way electromagnetic reversing valve 30 is arranged on the liquid storage tank 10. The four-way electromagnetic reversing valve 30 comprises an internal circulation electromagnetic reversing valve 31 and a full circulation electromagnetic reversing valve 32. The liquid storage tank 10 is connected with an external refrigeration device through the four-way electromagnetic reversing valve 30 and the transmission pipeline 40, so that the refrigerant stored in the liquid storage tank 10 is circulated and delivered to the external refrigeration device through the four-way electromagnetic reversing valve 30. The internal circulation electromagnetic reversing valve 31 is connected with the liquid storage tank 10 through the transmission pipeline 40, and the full circulation electromagnetic reversing valve 32 is connected with the external refrigeration device, the liquid storage tank 10 and the four-way electromagnetic reversing valve 30 through the transmission pipeline 40. The internal circulation electromagnetic reversing valve 31 is used to make the refrigerant flow in the liquid storage tank 10 and the full circulation electromagnetic reversing valve 32 through closing the internal circulation electromagnetic reversing valve 31 and opening the full circulation electromagnetic reversing valve 32, and the full circulation electromagnetic reversing valve 32 is used to make the refrigerant flow between the external refrigeration device, the liquid storage tank 10 and the internal circulation electromagnetic reversing valve 31 through closing the full circulation electromagnetic reversing valve 32 and opening the internal circulation electromagnetic reversing valve 31. The following is a detailed description of the above components and their connection modes:

[0029] The refrigerant adjusting device based on the electromagnetic valve comprises a liquid storage tank 10, a four-way electromagnetic reversing valve 30 and a transmission pipeline 40. The liquid storage tank 10 is used for storing refrigerant, and its structure is a sealed container with sufficient strength and corrosion resistance to ensure long-term storage of refrigerant.

[0030] The four-way electromagnetic reversing valve 30 is arranged on the liquid storage tank 10 and includes an internal circulation electromagnetic reversing valve 31 and a full circulation electromagnetic reversing valve 32. Both of the electromagnetic reversing valves are existing electromagnetic valve products and have reliable switching and sealing performance. The internal circulation electromagnetic reversing valve 31 is directly connected with the liquid storage tank 10 through the transmission pipeline 40 and is used to control the circulation of the refrigerant in the liquid storage tank 10. The full circulation electromagnetic reversing valve 32 is connected with the external refrigeration device, the liquid storage tank 10 and other parts of the four-way electromagnetic reversing valve 30 through the transmission pipeline 40 and is used to control the circulation of the refrigerant between the liquid storage tank 10 and the external refrigeration device.

[0031] The transmission pipeline 40 is a corrosion-resistant and high-strength pipeline and is used to connect the liquid storage tank 10, the four-way electromagnetic reversing valve 30 and the external refrigeration device, thereby ensuring the smooth delivery of the refrigerant.

[0032] In specific work, when the refrigerant needs to be circulated in the liquid storage tank 10, the outlet channel of the internal circulation electromagnetic reversing valve 31 is closed, the channel of the full circulation electromagnetic reversing valve 32 connected with the liquid storage tank 10 is opened, and the refrigerant flows between the liquid storage tank 10 and the full circulation electromagnetic reversing valve 32 through the transmission pipeline 40. When the refrigerant needs to be circulated between the liquid storage tank 10 and the external refrigeration device, the channel of the full circulation electromagnetic reversing valve 32 connected with the liquid storage tank 10 is closed, the channel of the internal circulation electromagnetic reversing valve 31 connected with the external refrigeration device is opened, and the refrigerant flows between the external refrigeration device, the liquid storage tank 10 and the internal circulation electromagnetic reversing valve 31 through the transmission pipeline 40.

[0033] Through the above structure and working principle, the refrigerant adjusting device based on the electromagnetic valve can effectively prevent the risk of explosion caused by the backflow of high-pressure liquid in the liquid storage tank 10 after the refrigeration system stops, thereby improving the safety and stability of the refrigeration system.

[0034] Specifically, the adjusting device further includes a bracket 20, the bracket 20 is fixedly installed on the liquid storage tank 10, the four-way electromagnetic reversing valve 30 is fixedly installed on the bracket 20, and the bracket 20 is used to fixedly connect the liquid storage tank 10 and the four-way electromagnetic reversing valve 30. Specifically, the bracket 20 is fixedly installed on the liquid storage tank 10 and is connected with the liquid storage tank 10 through welding, bolt connection or other fastening methods to ensure the stability between the bracket 20 and the liquid storage tank 10. The four-way electromagnetic reversing valve 30 is fixedly installed on the bracket 20 and is also connected with the bracket 20 through welding, bolt connection or other fastening methods to ensure the firm connection between the four-way electromagnetic reversing valve 30 and the bracket 20. The bracket 20 can effectively fixedly connect the liquid storage tank 10 and the four-way electromagnetic reversing valve 30 together to form an integrated adjusting device structure.

[0035] Specifically, the transmission pipeline 40 includes: a first transmission pipeline 41 and a second transmission pipeline 42, a third transmission pipeline 43, a fourth transmission pipeline 44, one end of the first transmission pipeline 41 and the second transmission pipeline 42 are in communication with the four-way electromagnetic reversing valve 30, the other end of the first transmission pipeline 41 and the second transmission pipeline 42 are in communication with two pre-set channels on the liquid storage tank 10 respectively; one end of the third transmission pipeline 43 is in communication with the condenser of the external refrigeration device to input the refrigerant, the other end of the third transmission pipeline 43 is in communication with the four-way electromagnetic reversing valve 30; one end of the fourth transmission pipeline 44 is in communication with the electronic expansion valve of the external refrigeration device to output the refrigerant, the other end of the fourth transmission pipeline 44 is in communication with the four-way electromagnetic reversing valve 30. Specifically, the transmission pipeline 40 includes a first transmission pipeline 41, a second transmission pipeline 42, a third transmission pipeline 43 and a fourth transmission pipeline 44. These transmission pipelines realize the efficient circulation of the refrigerant in the system through precise connection mode.

[0036] One end of the first transmission pipeline 41 and the second transmission pipeline 42 are in communication with the four-way electromagnetic reversing valve 30. This connection mode ensures that the four-way electromagnetic reversing valve 30 can guide the refrigerant to the liquid storage tank 10 or extract the refrigerant from the liquid storage tank 10 as needed. Specifically, the other end of the first transmission pipeline 41 and the second transmission pipeline 42 are in communication with two pre-set channels on the liquid storage tank 10 respectively. These two pre-set channels are carefully designed to ensure the uniform distribution and efficient flow of the refrigerant in the liquid storage tank 10.

[0037] One end of the third transmission pipeline 43 is in communication with the condenser of the external refrigeration device to introduce the refrigerant from the condenser into the system. The condenser is a key component in the external refrigeration device, which is responsible for cooling and liquefying the high-temperature and high-pressure gaseous refrigerant. The other end of the third transmission pipeline 43 is in communication with the four-way electromagnetic reversing valve 30, so that the refrigerant treated by the condenser can be guided to other parts of the system through the four-way electromagnetic reversing valve 30.

[0038] One end of the fourth transmission pipeline 44 is in communication with the electronic expansion valve of the external refrigeration device to output the refrigerant from the system to the electronic expansion valve. The electronic expansion valve is another key component in the external refrigeration device, which is responsible for adjusting the flow and pressure of the refrigerant to ensure the stable operation of the refrigeration system. The other end of the fourth transmission pipeline 44 is also in communication with the four-way electromagnetic reversing valve 30, so that the refrigerant in the system can be guided to the electronic expansion valve through the four-way electromagnetic reversing valve 30 for further adjustment and treatment. In summary, the adjustment device provided in this embodiment realizes the smooth flow of the refrigerant between the liquid storage tank 10 and the external refrigeration device through the precisely designed transmission pipeline 40. This design not only improves the operating efficiency of the refrigeration system, but also ensures the stability and reliability of the system.

[0039] Specifically, as shown in Figure 1 and Figure 2 The inner circulation electromagnetic reversing valve 31 includes a first electromagnetic reversing valve 311 and a second electromagnetic reversing valve 312. These two electromagnetic reversing valves are connected to the preset holes in the liquid storage tank 10 through specific transmission pipelines, achieving precise control of the refrigerant flow path. Specifically, the first electromagnetic reversing valve 311 is connected to the corresponding preset hole in the liquid storage tank 10 through the first transmission pipeline 41. This connection ensures that when the first electromagnetic reversing valve 311 is open, the refrigerant can flow smoothly from the liquid storage tank 10 and enter the first electromagnetic reversing valve 311 through the first transmission pipeline 41, and then flow to other parts of the system according to the control instructions. Similarly, the second electromagnetic reversing valve 312 is connected to another corresponding preset hole in the liquid storage tank 10 through the second transmission pipeline 42. When the second electromagnetic reversing valve 312 is open, the refrigerant can also flow from the liquid storage tank 10 and enter the second electromagnetic reversing valve 312 through the second transmission pipeline 42, achieving control of another flow path. Importantly, the embodiment also provides a switching mechanism between inner circulation and outer circulation. When it is necessary to achieve inner circulation of the refrigerant in the liquid storage tank 10 and the four-way electromagnetic reversing valve 30, the first electromagnetic reversing valve 311 and the second electromagnetic reversing valve 312 can be closed, and the full circulation electromagnetic reversing valve 32 can be opened. In this way, the refrigerant can form a closed loop flow between the liquid storage tank 10 and the four-way electromagnetic reversing valve 30, meeting the specific system requirements. In summary, the adjustment device provided by the embodiment achieves flexible control of the refrigerant between the liquid storage tank 10 and the four-way electromagnetic reversing valve 30 through the precisely designed inner circulation electromagnetic reversing valve 31 and its connection method. This design not only improves the flexibility and reliability of the system, but also provides more possibilities for the circulation management of the refrigerant.

[0040] Specifically, the full-cycle electromagnetic reversing valve 32 includes a third electromagnetic reversing valve 321 and a fourth electromagnetic reversing valve 322. The third electromagnetic reversing valve 321 is connected to the condenser of the external refrigeration device through the third transmission pipeline 43 to input the refrigerant. The fourth electromagnetic reversing valve 322 is connected to the electronic expansion valve of the external refrigeration device through the fourth transmission pipeline 44, so that by closing the third electromagnetic reversing valve 321 and the fourth electromagnetic reversing valve 322 and opening the internal circulation electromagnetic reversing valve 31, the refrigerant flows between the external refrigeration device, the liquid storage tank 10 and the four-way electromagnetic reversing valve 30. It can be understood that the full-cycle electromagnetic reversing valve 32 specifically includes the third electromagnetic reversing valve 321 and the fourth electromagnetic reversing valve 322, which are responsible for the input and output control of the refrigerant and the external refrigeration device, respectively. Specifically, the third electromagnetic reversing valve 321 is directly connected to the condenser of the external refrigeration device through the third transmission pipeline 43. This connection ensures that when the third electromagnetic reversing valve 321 is opened, the refrigerant can flow smoothly from the condenser into the conditioning device, thereby participating in the circulation process of the system. As the core component of the external refrigeration device, the condenser is responsible for cooling and liquefying the high-temperature and high-pressure gaseous refrigerant, providing necessary refrigerant supply for the stable operation of the system. Similarly, the fourth electromagnetic reversing valve 322 is directly connected to the electronic expansion valve of the external refrigeration device through the fourth transmission pipeline 44. As another key component in the refrigeration system, the electronic expansion valve is responsible for adjusting the flow and pressure of the refrigerant to ensure efficient operation of the system. When the fourth electromagnetic reversing valve 322 is opened, the refrigerant processed by the system circulation can flow out through the electronic expansion valve, and then return to the external refrigeration device for further refrigeration processing. It is worth noting that the embodiment also provides a flexible switching mechanism between internal circulation and external circulation. When full circulation of the refrigerant between the external refrigeration device, the liquid storage tank 10 and the four-way electromagnetic reversing valve 30 is required, the third electromagnetic reversing valve 321 and the fourth electromagnetic reversing valve 322 can be closed, and the internal circulation electromagnetic reversing valve 31 (i.e. the first electromagnetic reversing valve 311 and the second electromagnetic reversing valve 312) can be opened. In this way, the refrigerant can form a closed loop between these components to meet the specific system requirements. In summary, the conditioning device provided by the embodiment realizes flexible circulation control of the refrigerant between the external refrigeration device, the liquid storage tank 10 and the four-way electromagnetic reversing valve 30 through the full-cycle electromagnetic reversing valve 32 and its connection mode. This design not only improves the flexibility and reliability of the system, but also provides more possibilities for the circulation management of the refrigerant.

[0041] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coolant adjusting device based on a solenoid valve, characterized by, The adjusting device comprises: a liquid storage tank (10) for storing refrigerant; a four-way electromagnetic reversing valve (30) provided on the liquid storage tank (10), the four-way electromagnetic reversing valve (30) comprising an inner circulation electromagnetic reversing valve (31) and a full circulation electromagnetic reversing valve (32); a transmission pipeline (40) for connecting the liquid storage tank (10) with an external refrigeration device through the four-way electromagnetic reversing valve (30) and the transmission pipeline (40) so that the refrigerant stored in the liquid storage tank (10) is circulated to the external refrigeration device through the four-way electromagnetic reversing valve (30); wherein the inner circulation electromagnetic reversing valve (31) is connected with the liquid storage tank (10) through the transmission pipeline (40), the full circulation electromagnetic reversing valve (32) is connected with the external refrigeration device, the liquid storage tank (10) and the four-way electromagnetic reversing valve (30) through the transmission pipeline (40), the inner circulation electromagnetic reversing valve (31) is used to make the refrigerant flow in the liquid storage tank (10) and the full circulation electromagnetic reversing valve (32) through the transmission pipeline (40) by closing the inner circulation electromagnetic reversing valve (31) and opening the full circulation electromagnetic reversing valve (32), and the full circulation electromagnetic reversing valve (32) is used to make the refrigerant flow between the external refrigeration device, the liquid storage tank (10) and the inner circulation electromagnetic reversing valve (31) through the transmission pipeline (40) by closing the full circulation electromagnetic reversing valve (32) and opening the inner circulation electromagnetic reversing valve (31).

2. The electromagnetic valve-based refrigerant adjusting device according to claim 1, characterized by The adjusting device further comprises a bracket (20) fixedly installed on the liquid storage tank (10), the four-way electromagnetic reversing valve (30) is fixedly installed on the bracket (20), and the bracket (20) is used to fixedly connect the liquid storage tank (10) and the four-way electromagnetic reversing valve (30).

3. The electromagnetic valve-based refrigerant adjusting device according to claim 1, characterized by The transmission pipeline (40) comprises: a first transmission pipeline (41) and a second transmission pipeline (42), one end of each of the first transmission pipeline (41) and the second transmission pipeline (42) is communicated with the four-way electromagnetic reversing valve (30), and the other end of each of the first transmission pipeline (41) and the second transmission pipeline (42) is communicated with two preset holes on the liquid storage tank (10); a third transmission pipeline (43), one end of the third transmission pipeline (43) is communicated with a condenser of the external refrigeration device to input the refrigerant, and the other end of the third transmission pipeline (43) is communicated with the four-way electromagnetic reversing valve (30); a fourth transmission pipeline (44), one end of the fourth transmission pipeline (44) is communicated with an electronic expansion valve of the external refrigeration device to output the refrigerant, and the other end of the fourth transmission pipeline (44) is communicated with the four-way electromagnetic reversing valve (30).

4. The electromagnetic valve-based refrigerant adjusting device according to claim 3, characterized by The inner circulation electromagnetic reversing valve (31) comprises: a first electromagnetic reversing valve (311) communicated with the corresponding preset hole on the liquid storage tank (10) through the first transmission pipeline (41); A second electromagnetic directional control valve (312) is communicated with a corresponding preset hole on the liquid storage tank (10) through the second transmission pipeline (42) so as to make the refrigerant flow in the liquid storage tank (10) and the four-way electromagnetic directional control valve (30) by closing the first electromagnetic directional control valve (311) and the second electromagnetic directional control valve (312) and opening the full cycle electromagnetic directional control valve (32).

5. The electromagnetic valve-based refrigerant adjusting device according to claim 3, characterized by The full cycle electromagnetic directional control valve (32) comprises: A third electromagnetic directional control valve (321) is communicated with a condenser of the external refrigeration device through the third transmission pipeline (43) to input the refrigerant; A fourth electromagnetic directional control valve (322) is communicated with an electronic expansion valve of the external refrigeration device through the fourth transmission pipeline (44) so as to make the refrigerant flow between the external refrigeration device, the liquid storage tank (10) and the four-way electromagnetic directional control valve (30) by closing the third electromagnetic directional control valve (321) and the fourth electromagnetic directional control valve (322) and opening the inner cycle electromagnetic directional control valve (31).

Images