Refrigeration equipment and adjusting method

Abstract

The invention discloses refrigeration equipment and an adjusting method. The liquid storage device is used for storing or discharging a cooling medium. The detection device is used for detecting state information of a cooling medium in the refrigeration equipment and discharging the cooling medium from the liquid storage device or discharging the cooling medium to the liquid storage device from the refrigeration equipment according to the state information. According to the refrigeration equipment and the adjusting method, due to the fact that the detection device can detect the state information of the cooling medium in the refrigeration equipment to obtain the supercooling degree of the cooling medium in the refrigeration equipment, whether the refrigeration equipment lacks the cooling medium or not is determined, and when the refrigeration equipment lacks the cooling medium, namely, the cooling medium is supercooled, the cooling medium can be adjusted. The cooling medium is discharged from the interior of the liquid storage device for supplement, and when the refrigeration equipment is not lack of the cooling medium, the redundant cooling medium can be discharged to the liquid storage device from the refrigeration equipment, so that the refrigeration equipment is ensured to be in an optimal operation state.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration devices, and more specifically, to a refrigeration device and an adjustment method. Background Art

[0002] At present, conventional air source heat pump units require different amounts of refrigerant circulation during cooling and heating operations. Generally, a larger amount of refrigerant is required during cooling operation, while a smaller amount of refrigerant is required during heating operation. Since the refrigerant charge in the system is a fixed value, a liquid receiver is required to store excess refrigerant during heating.

[0003] However, since conventional liquid receivers are generally set on the high-pressure side, when the unit is running refrigeration, the liquid receiver generally only stores about 20% of the refrigerant. This will cause the supercooled refrigerant coming down from the air-side condenser to exchange heat with the saturated refrigerant in the liquid receiver, causing the economizer outlet temperature to increase, reducing the subcooling degree before throttling, and causing the unit's cooling capacity and performance loss. Summary of the invention

[0004] Embodiments of the present application provide a refrigeration device and an adjustment method.

[0005] The refrigeration device provided in the embodiment of the present application includes a liquid storage device and a detection device. The liquid storage device is used to store or discharge a cooling medium. The state information of the cooling medium in the refrigeration device is detected, and the cooling medium is discharged from the liquid storage device according to the state information, or the cooling medium is discharged from the refrigeration device to the liquid storage device.

[0006] The adjustment method provided in the embodiment of the present application includes detecting the status information of the cooling medium in the refrigeration equipment; according to the status information, discharging the cooling medium from the liquid storage device of the refrigeration equipment, or discharging the cooling medium from the refrigeration equipment to the liquid storage device.

[0007] In the refrigeration equipment and adjustment method of the present application, since the detection device can detect the status information of the cooling medium in the refrigeration equipment to learn the supercooling degree of the cooling medium in the refrigeration equipment, it is determined whether there is a lack of cooling medium in the refrigeration equipment. When there is a lack of cooling medium in the refrigeration equipment, that is, when the cooling medium is supercooled, the cooling medium is discharged from the liquid storage device for replenishment. When there is no lack of cooling medium in the refrigeration equipment, excess cooling medium can be discharged from the refrigeration equipment to the liquid storage device, thereby ensuring that the refrigeration equipment is in the best operating state.

[0008] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 is a schematic diagram of the structure of a refrigeration device in certain embodiments of the present application;

[0011] Figure 2 yes Figure 1 A schematic structural diagram of a liquid storage device of a refrigeration equipment shown;

[0012] Figure 3 is a schematic diagram of the structure of the refrigeration equipment in the embodiment of the present application;

[0013] Figure 4 is a schematic diagram of the structure of the refrigeration equipment in the embodiment of the present application;

[0014] Figure 5 yes Figure 4 A schematic diagram of the structure of a four-way valve of a refrigeration equipment shown;

[0015] Figure 6 is a schematic flow chart of a regulation method in certain embodiments of the present application;

[0016] Figure 7 It is a schematic flow chart of the adjustment method in certain embodiments of the present application.

[0017] Description of main component symbols:

[0018] Refrigeration equipment 100; liquid storage device 10, cylinder 11, air outlet 101, liquid storage pipeline 12, liquid discharge pipeline 13, liquid level switch 14; detection device 20; compressor 30, first air inlet 31, first air outlet 32, air supply port 33; first heat exchanger 40; economizer 50, first air port 51, second air port 52, third air port 53, fourth air port 54; second heat exchanger 60, second air inlet 61, second air outlet 62; first solenoid valve 71, second solenoid valve 72, third solenoid valve 73; a first electronic expansion valve 81, a second electronic expansion valve 82; a separator 90; a four-way valve 110, a first opening 111, a second opening 112, a third opening 113, a fourth opening 114; a first drying filter 120; a second drying filter 130; a ball valve 140; a first one-way valve 151, a second one-way valve 152, a third one-way valve 153, a fourth one-way valve 154, a fifth one-way valve 155, a sixth one-way valve 156; a first throttling orifice 160; a second throttling orifice 170. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0020] In the description of the embodiments of the present application, it is worth mentioning that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present application, "multiple" means two or more, unless otherwise clearly defined.

[0021] In the description of the implementation methods of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the implementation methods of the present application can be understood according to specific circumstances.

[0022] In the embodiments of the present application, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] The disclosure below provides many different embodiments or examples to realize different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. The embodiments of the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. The embodiments of the present application provide various specific processes and examples of materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0024] See also Figure 1 and Figure 2 The refrigeration device 100 provided in the embodiment of the present application includes a liquid storage device 10 and a detection device 20. The liquid storage device 10 is used to store or discharge a cooling medium. The detection device 20 is used to detect the state information of the cooling medium in the refrigeration device 100, and discharge the cooling medium from the liquid storage device 10 according to the state information, or discharge the cooling medium from the refrigeration device 100 to the liquid storage device 10.

[0025] In the refrigeration equipment 100 of the present application, since the detection device 20 can detect the status information of the cooling medium in the refrigeration equipment 100 and learn the supercooling degree of the cooling medium in the refrigeration equipment 100, it is determined whether there is a lack of cooling medium in the refrigeration equipment 100. When there is a lack of cooling medium in the refrigeration equipment 100, that is, when the cooling medium is supercooled, the cooling medium is discharged from the liquid storage device 10 for replenishment. When there is no lack of cooling medium in the refrigeration equipment 100, the excess cooling medium can be discharged from the refrigeration equipment 100 to the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0026] The present application is further described in detail below in conjunction with the accompanying drawings.

[0027] See also Figure 1 The refrigeration device 100 includes a liquid storage device 10 and a detection device 20. The liquid storage device 10 is used to store or discharge a cooling medium. The detection device 20 is used to detect the state information of the cooling medium in the refrigeration device 100, and discharge the cooling medium from the liquid storage device 10 according to the state information, or discharge the cooling medium from the refrigeration device 100 to the liquid storage device 10.

[0028] Please combine Figure 2 The liquid storage device 10 includes a cylinder 11, a liquid storage pipeline 12, a liquid discharge pipeline 13 and a liquid level switch 14. The liquid storage pipeline 12, the liquid discharge pipeline 13 and the liquid level switch 14 are at least partially located inside the cylinder 11. It can be understood that at least part of the liquid storage pipeline 12, the liquid discharge pipeline 13 and the liquid level switch 14 are located outside the cylinder 11.

[0029] The cylinder 11 is used to store cooling medium. It can be understood that the cylinder 11 can discharge the cooling medium in the pipeline of the refrigeration device 100 to the oil collecting tank 102 of the cylinder 11 through the liquid storage pipeline 12; the cooling medium stored in the cylinder 11 can also be discharged to the pipeline of the refrigeration device 100 through the liquid discharge pipeline 13 to replenish the cooling medium of the refrigeration device 100. In this way, it can be ensured that the cooling medium in the refrigeration device 100 is in the optimal supercooling range, thereby ensuring that the refrigeration device 100 can operate in the best state to ensure the performance of the refrigeration device 100.

[0030] The cylinder 11 is formed with an air outlet 101, which extends in a direction away from the cylinder 11. The air outlet 101 is connected to the compressor 30 of the refrigeration device 100, so that the compressor 30 can absorb the gaseous cooling medium inside the liquid storage device 10, change the pressure inside the liquid storage device 10, and complete the replenishment of the cooling medium in the compressor 30.

[0031] The liquid storage pipeline 12 includes two opposite ends, one end of which extends into the cylinder 11 and is located in the oil collecting tank of the cylinder 11, and the other end extends out of the cylinder 11 and is connected to the pipeline of the refrigeration equipment 100 to store the cooling medium in the refrigeration equipment 100 inside the cylinder 11.

[0032] Similarly, the liquid discharge pipeline 13 includes two opposite ends, one end of which extends into the cylinder 11, and the other end extends out of the cylinder 11, and is connected to the pipeline of the refrigeration device 100 to discharge the cooling medium in the cylinder 11 to the refrigeration device 100. It should be noted that the connection position of the liquid storage pipeline 12 and the refrigeration device 100 is different from the connection position of the liquid discharge pipeline 13 and the refrigeration device 100.

[0033] The liquid level switch 14 also includes a relative brightness, one end of which extends into the cylinder 11 and the other end extends out of the cylinder 11. The liquid level switch 14 can be used to detect the capacity of the cooling medium in the cylinder 11.

[0034] Specifically, the liquid level switch 14 can obtain the height of the cooling medium in the cylinder 11 by extending one end into the cylinder 11, thereby determining the capacity of the cooling medium in the cylinder 11. When the capacity of the cooling medium in the cylinder 11 reaches a predetermined height, the passage between the liquid storage device 10 and the compressor 30 of the refrigeration equipment 100 is cut off, thereby preventing the liquid cooling mechanism from being sucked into the compressor 30 and avoiding the problem of wet compression.

[0035] Please continue reading Figure 1 The refrigeration device 100 may include a compressor 30 , a first heat exchanger 40 , an economizer 50 and a second heat exchanger 60 .

[0036] The compressor 30 is used to compress the cooling medium. The compressor 30 includes a first air intake port 31, a first exhaust port 32 and an air supply port 33. The first air intake port 31 is connected to the second heat exchanger 60, and the first exhaust port 32 is connected to the first heat exchanger 40. The air supply port 33 is connected to the economizer 50.

[0037] The first air receiving port 31 is used to receive the cooling medium after the heat exchange through the first heat exchanger 40 or the second heat exchanger 60, so as to compress the cooling medium cyclically. The first exhaust port 32 is used to discharge the compressed cooling medium to the first heat exchanger 40 or the second heat exchanger 60. The air supply port 33 is used to receive the gaseous cooling medium after being supercooled and evaporated and absorbed heat through the economizer 50.

[0038] The first heat exchanger 40 is used to receive the cooling medium discharged through the first exhaust port 32 and perform heat exchange with the external environment. For example, when the refrigeration device 100 is in the cooling mode, the first heat exchanger 40 can be used as a condenser to release the heat of the cooling medium to the environment. For another example, when the refrigeration device 100 is in the heating mode, the first heat exchanger 40 can be used as an evaporator to absorb heat from the environment, thereby performing heat exchange on the cooling medium.

[0039] The economizer 50 is used to perform supercooling on the cooling medium. The detection device 20 is located between the economizer 50 and the first heat exchanger 40, and is used to detect the state information (pressure and temperature) of the cooling medium before entering the economizer 50, so as to calculate the supercooling degree of the current cooling medium, and determine whether the refrigeration equipment lacks cooling medium or has excess cooling medium according to the supercooling degree, so as to determine whether the liquid storage device 10 discharges cooling medium or stores cooling medium.

[0040] The second heat exchanger 60 contains a pipe storing water therein, and the second heat exchanger 60 can condense or evaporate the cooling medium to achieve heat exchange with water, thereby cooling or heating the water, that is, realizing the cooling or heating function of the refrigeration device 100.

[0041] The second heat exchanger 60 includes a second air inlet 61 and a second exhaust port 62. The second air inlet 61 is in communication with the economizer 50, and is used to receive the cooling medium after being overcooled by the economizer 50, or to discharge the cooling medium to the economizer 50. The second exhaust port 62 is in communication with the first air inlet 31, and is used to discharge the cooling medium after heat exchange with water to the first air inlet 31, or to receive the cooling medium compressed by the compressor 30.

[0042] The liquid storage pipeline 12 connects the first heat exchanger 40 and the second heat exchanger 60 to store the cooling medium discharged from the first heat exchanger 40 or the second heat exchanger 60. The liquid discharge pipeline 13 connects between the economizer 50 and the second heat exchanger 60 to further supplement the cooling medium after passing through the economizer 50.

[0043] The working process of the refrigeration device 100 is further explained below:

[0044] When the refrigeration device 100 is in the cooling mode, the first heat exchanger 40 acts as a condenser to release the heat of the cooling medium, and the second heat exchanger 60 acts as an evaporator to evaporate the cooling medium entering the second heat exchanger 60 to achieve cooling of the water.

[0045] Specifically, see Figure 1 , Figure 1 Indicates the flow direction of the cooling medium in the refrigeration mode. After the compressor 30 compresses the cooling medium, it is first discharged into the first heat exchanger 40 through the first exhaust port 32 for heat release, then passed through the economizer 50 for supercooling, and then enters the second heat exchanger 60 through the second air intake port 61 for evaporation and heat absorption to achieve water cooling, and finally discharged into the compressor 30 through the second exhaust port 62 and the first air intake port 31 for compression to achieve the circulation of the cooling medium.

[0046] When the refrigeration device 100 is in the heating mode, the first heat exchanger 40 acts as an evaporator to absorb heat, and the second heat exchanger 60 acts as a condenser to condense the cooling medium to achieve heating of the water.

[0047] Specifically, see Figure 3 , Figure 3 Indicates the flow direction of the cooling medium in the heating mode. After the compressor 30 compresses the cooling medium, it is first discharged into the second heat exchanger 60 through the first exhaust port 32 and the second exhaust port 62 for condensation to achieve water heating, and then enters the economizer 50 through the second air intake port 61 for supercooling, and then enters the first heat exchanger 40 to absorb heat, and finally enters the compressor 30 through the first air intake port 31 for compression to achieve the circulation of the cooling medium.

[0048] When the refrigeration device 100 is in the heating mode, there is also a defrost mode. When the refrigeration device 100 is in the defrost mode, it means that the frost layer of the first heat exchanger 40 needs to be melted first. At this time, the first heat exchanger 40 acts as a condenser and the second heat exchanger 60 acts as an evaporator.

[0049] Specifically, see Figure 4 , Figure 4The flow direction of the cooling medium in the defrost mode is indicated. After the compressor 30 compresses the cooling medium, it first enters the first heat exchanger 40 through the first exhaust port 32 for cooling and condensation to melt the frost layer of the first heat exchanger 40. The condensed cooling medium then enters the economizer 50 for supercooling, and then enters the second heat exchanger 60 through the second air inlet 61 for evaporation to achieve water heating, and finally enters the compressor 30 through the second exhaust port 62 and the first air inlet 31 for compression to achieve the circulation of the cooling medium.

[0050] Please also read Figures 1 to 4 The refrigeration device 100 further includes a first solenoid valve 71, a second solenoid valve 72 and a third solenoid valve 73. The first solenoid valve 71, the second solenoid valve 72 and the third solenoid valve 73 are respectively located at different positions of the refrigeration device 100.

[0051] Specifically, the first solenoid valve 71 connects the first heat exchanger 40, the liquid storage pipeline 12 and the second air inlet 61, and controls whether the cooling medium discharged through the first heat exchanger 40 can flow to the liquid storage pipeline 12 and finally enter the liquid storage device 10, and controls whether the cooling medium discharged through the second air inlet 61 can flow to the liquid storage pipeline 12 and finally enter the liquid storage device 10.

[0052] The second solenoid valve 72 is connected to the drain pipe 13 and the second air inlet 61, and controls whether the liquid storage device 10 can converge with the cooling medium that has been supercooled by the economizer 50 and finally enter the second heat exchanger 60, and controls whether the cooling medium discharged from the drain pipe 13 can converge with the cooling medium discharged from the second heat exchanger 60.

[0053] The third solenoid valve 73 connects the air outlet 101 of the cylinder 11 and the first air inlet 31 to control whether the compressor 30 can absorb the gaseous cooling medium inside the liquid storage device 10 and finally enter the compressor 30 .

[0054] Specifically, the refrigeration device 100 includes a cooling mode, a heating mode, a defrosting mode and a stop state.

[0055] See also Figure 1 When the refrigeration device 100 is in the refrigeration mode, the detection device 20 can detect the subcooling degree of the cooling medium before entering the economizer 50, that is, the status information (the subcooling degree is determined by pressure and temperature), and determine that the refrigeration device 100 lacks cooling medium when the status information is less than or equal to the first preset threshold.

[0056] In this way, the refrigeration equipment 100 can open the second solenoid valve 72 so that the liquid storage device 10 can discharge the cooling medium through the drain pipe 13 and merge it with the cooling medium after being supercooled by the economizer 50 to replenish the cooling medium. The refrigeration equipment 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the cooling medium inside the liquid storage device 10 through the air outlet 101 and the first air intake port 31 to replenish the cooling medium. The refrigeration equipment 100 can also open the second solenoid valve 72 and the third solenoid valve 73 at the same time so that the liquid storage device 10 can replenish the cooling medium through the drain pipe 13 and the air outlet 101 at the same time, thereby ensuring that the refrigeration equipment 100 is in the best working state.

[0057] Preferably, when the refrigeration device 100 is in the refrigeration mode and the status information is less than or equal to the first preset threshold, such as the degree of supercooling is less than the preset temperature, such as less than or equal to 5°C, the refrigeration device 100 may first open the second solenoid valve 72 to replenish the cooling medium of the refrigeration device 100 through the drainage device, and continue to detect whether the status information is less than or equal to the first preset threshold. If after running for a period of time (such as 10 minutes), the status information is still less than or equal to the first preset threshold, the refrigeration device 100 may open the third solenoid valve 73 again to enable the compressor 30 to absorb the gaseous cooling medium in the liquid storage device 10 into the interior of the compressor 30 through the air outlet 101 and the first air inlet 31 to further replenish the cooling medium.

[0058] When the refrigeration device 100 is in the refrigeration mode, if the detection device 20 detects that the state information is greater than a second preset threshold, such as greater than 6° C., it can be determined that there is excess cooling medium in the refrigeration device 100 .

[0059] In this way, the refrigeration equipment 100 can open the first solenoid valve 71 so that part of the cooling medium discharged from the first heat exchanger 40 can enter the cylinder 11 through the liquid storage pipeline 12, and discharge the excess cooling medium in the refrigeration equipment 100 into the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0060] See also Figure 3 When the refrigeration device 100 is in the heating mode, the detection device 20 can detect the subcooling degree of the cooling medium before entering the economizer 50, that is, the status information (the subcooling degree is determined by pressure and temperature), and determine that the refrigeration device 100 lacks cooling medium when the status information is less than or equal to the third preset threshold.

[0061] In this way, the refrigeration equipment 100 can open the second solenoid valve 72 so that the liquid storage device 10 can discharge the cooling medium through the discharge pipe 13 and merge with the cooling medium discharged by the second heat exchanger 60 to replenish the cooling medium. The refrigeration equipment 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the cooling medium inside the liquid storage device 10 through the air outlet 101 and the first air intake port 31 to replenish the cooling medium. The refrigeration equipment 100 can also open the second solenoid valve 72 and the third solenoid valve 73 at the same time, so that the liquid storage device 10 can replenish the cooling medium through the discharge pipe 13 and the air outlet 101 at the same time, thereby ensuring that the refrigeration equipment 100 is in the best working state.

[0062] Preferably, when the refrigeration device 100 is in the heating mode and the status information is less than or equal to the third preset threshold, such as the degree of supercooling is less than the preset temperature, such as less than or equal to 3°C, the refrigeration device 100 may first open the second solenoid valve 72 to replenish the cooling medium of the refrigeration device 100 through the drainage device, and continue to detect whether the status information is less than or equal to the third preset threshold. If after running for a period of time (such as 10 minutes), the status information is still less than or equal to the third preset threshold, the refrigeration device 100 may open the third solenoid valve 73 again, so that the compressor 30 can absorb the gaseous cooling medium in the liquid storage device 10 into the interior of the compressor 30 through the air outlet 101 and the first air inlet 31, so as to further replenish the cooling medium.

[0063] When the refrigeration device 100 is in the heating mode, if the detection device 20 detects that the state information is greater than a fourth preset threshold, such as greater than 4° C., it can be determined that there is excess cooling medium in the refrigeration device 100 .

[0064] In this way, the refrigeration equipment 100 can open the first solenoid valve 71 so that part of the cooling medium discharged from the second heat exchanger 60 can enter the cylinder 11 through the liquid storage pipeline 12, and discharge the excess cooling medium in the refrigeration equipment 100 into the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0065] See also Figure 3 When the refrigeration equipment 100 is in the defrost mode, the detection device 20 can detect the pressure of the cooling medium before entering the economizer 50, that is, the status information, and when the status information is greater than or equal to the fifth preset threshold, it is determined that there is too much cooling medium in the first heat exchanger 40 and drainage is required.

[0066] The refrigeration device 100 can open the first solenoid valve 71 so that the liquid storage device 10 can discharge excess cooling medium into the liquid storage device 10 through the liquid storage pipeline 12. The refrigeration device 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the gaseous cooling medium in the liquid storage device 10 into the compressor 30 through the first air inlet 31 and the air outlet 101, so that the liquid storage device 10 can store more liquid cooling medium.

[0067] Preferably, when the refrigeration device 100 is in the defrost mode, and the state information is greater than or equal to the fifth preset threshold value, such as when the pressure is greater than or equal to the preset pressure, the refrigeration device 100 simultaneously opens the first solenoid valve 71 and the third solenoid valve 73, so that the liquid storage device 10 can pass through the liquid storage pipeline 12 and the air outlet 101, and at the same time, the excess cooling medium in the first heat exchanger 40 is discharged into the liquid storage device 10, so as to prevent the excess liquid cooling medium in the first heat exchanger 40 from entering the compressor 30 through the first air inlet 31 after the defrost mode ends and when switching to the heating mode, so as to cause liquid hammer, thereby ensuring the stability of the refrigeration device 100. Among them, the first preset threshold value, the second preset threshold value, the third preset threshold value, the fourth preset threshold value and the fifth preset threshold value are different.

[0068] Furthermore, when the refrigeration equipment 100 is in the defrost mode, if the liquid level switch 14 detects that the capacity of the cooling medium in the liquid storage device 10 reaches a predetermined capacity, the refrigeration equipment 100 needs to close the third solenoid valve 73 to prevent the compressor 30 from sucking in liquid cooling medium into the compressor 30 through the first air inlet 31 and the air outlet 101, causing wet compression, thereby ensuring the stability of the refrigeration equipment 100.

[0069] When the refrigeration equipment 100 is in a stopped state, the refrigeration equipment 100 can open the first solenoid valve 71 to collect the cooling medium in the refrigeration equipment 100 into the liquid storage device 10. The refrigeration equipment 100 can also open the third solenoid valve 73 to collect the gaseous cooling medium in the liquid storage device 10 into the compressor 30. The refrigeration equipment 100 can also open the first solenoid valve 71 and the third solenoid valve 73 at the same time to collect the gaseous cooling medium in the refrigeration equipment 100 into the compressor 30, and collect the liquid cooling medium into the liquid storage device 10, thereby completing the centralized collection of the cooling medium when the refrigeration equipment 100 is shut down, thereby preventing the cooling medium from causing frozen pipes to the first heat exchanger 40 and the second heat exchanger 60, so as to ensure the stability of the refrigeration equipment 100.

[0070] In addition, when the refrigeration equipment 100 is in a stopped state, if the liquid level switch 14 detects that the capacity of the cooling medium in the liquid storage device 10 reaches a predetermined capacity, the refrigeration equipment 100 needs to close the third solenoid valve 73 to prevent the liquid cooling medium in the liquid storage device 10 from entering the compressor 30, causing the internal pressure of the liquid storage device 10 to be low, resulting in a low pressure alarm when the refrigeration equipment 100 is working, thereby ensuring the stability of the refrigeration equipment 100.

[0071] Please also read Figures 1 to 4 The refrigeration device 100 also includes a first electronic expansion valve 81 and a second electronic expansion valve 82 .

[0072] Specifically, the economizer 50 includes a first gas port 51 , a second gas port 52 , a third gas port 53 , and a fourth gas port 54 .

[0073] The first air port 51 is in communication with the first heat exchanger 40 and the second air receiving port 61. In cooling mode, the first air port 51 is used to receive the cooling medium discharged from the first heat exchanger 40; in heating mode, the first air port 51 is used to receive the cooling medium discharged from the second heat exchanger 60.

[0074] The second air port 52 is connected to the air supply port 33 of the compressor 30, the first electronic expansion valve 81 is connected to the third air port 53 and the fourth air port 54, and the second electronic expansion valve 82 is connected to the fourth air port 54, the second air receiving port 61 and the first heat exchanger 40. In the cooling mode, the cooling medium is supercooled by the economizer 50 and then discharged to the second air receiving port 61 through the fourth air port 54 and the second electronic expansion valve 82 to enter the second heat exchanger 60. In the heating mode, the cooling medium is supercooled by the economizer 50 and then discharged to the first heat exchanger 40 through the fourth air port 54 and the second electronic expansion valve 82.

[0075] More specifically, after the cooling medium enters the economizer 50 through the first air port 51 and is supercooled, part of the supercooled cooling medium can enter the first electronic expansion valve 81 through the third air port 53, and re-enter the economizer 50 through the fourth air port 54 to evaporate and absorb heat, and the cooling medium after complete evaporation enters the air supply port 33 of the compressor 30 through the second air port 52. In addition, the main part of the supercooled cooling medium can be discharged into the second electronic expansion valve 82 through the fourth air port 54 for pressure reduction and throttling.

[0076] In the refrigeration mode, the cooling medium after pressure reduction and throttling can enter the second heat exchanger 60 through the second air inlet 61 for evaporation to complete the cooling of the water. Finally, the completely evaporated cooling medium enters the compressor 30 through the first air inlet 31 for compression to complete the refrigeration cycle.

[0077] In the heating mode, the reduced-pressure and throttled cooling medium can be discharged into the first heat exchanger 40 for evaporation and heat absorption to dissipate the cold to the environment. Finally, the completely evaporated cooling medium enters the compressor 30 through the first air inlet 31 for compression to complete the heating cycle.

[0078] In the defrost mode, the reduced-pressure and throttled cooling medium can be discharged into the second heat exchanger 60 for evaporation and heat absorption, and finally the completely evaporated cooling medium enters the compressor 30 through the first air inlet 31 for compression to complete the defrost cycle.

[0079] Please also read Figures 1 to 5 The refrigeration equipment 100 may also include a separator 90, a four-way valve 110, a first drying filter 120, a second drying filter 130, a ball valve 140, a first one-way valve 151, a second one-way valve 152, a third one-way valve 153, a fourth one-way valve 154, a fifth one-way valve 155 and a sixth one-way valve 156, a first throttling orifice plate 160 and a second throttling orifice plate 170.

[0080] The separator 90 is disposed between the compressor 30 and the four-way valve 110 , and is used to separate the cooling medium discharged through the first exhaust port 32 , so as to filter the lubricating oil contained in the gaseous cooling medium.

[0081] The four-way valve 110 includes a first opening 111, a second opening 112, a third opening 113 and a fourth opening 114 which are interconnected. The four-way valve 110 can change the flow direction of the cooling medium by being energized or de-energized.

[0082] Specifically, the first opening 111 is connected to the separator 90 , the second opening 112 is connected to the first heat exchanger 40 , the third opening 113 is connected to the first air receiving port 31 , and the fourth opening 114 is connected to the second air exhaust port 62 .

[0083] In the refrigeration mode, after compressing the cooling medium, the compressor 30 is discharged into the separator 90 through the first exhaust port 32 for separation, enters the four-way valve 110 through the first opening 111, and finally flows to the first heat exchanger 40 through the first opening 112. The cooling medium after evaporation in the second heat exchanger 60 can enter the four-way valve 110 through the second exhaust port 62 and the fourth opening 114, and enter the compressor 30 through the third opening 113 and the first air inlet 31 to complete the refrigeration cycle.

[0084] In the heating mode, after compressing the cooling medium, the compressor 30 is discharged into the separator 90 through the first exhaust port 32 for separation, enters the four-way valve 110 through the first opening 111, and finally flows to the second heat exchanger 60 through the fourth opening 114. The cooling medium that evaporates and absorbs heat in the first heat exchanger 40 can enter the four-way valve 110 through the second opening 112, and then enter the compressor 30 through the third opening 113 and the first air inlet 31 to complete the heating cycle.

[0085] In the defrost mode, after compressing the cooling medium, the compressor 30 is discharged into the separator 90 through the first exhaust port 32 for separation, enters the four-way valve 110 through the first opening 111, and finally flows to the first heat exchanger 40 through the second opening 112. The cooling medium after evaporation through the second heat exchanger 60 can enter the four-way valve 110 through the second exhaust port 62 and the fourth opening 114, and enter the compressor 30 through the third opening 113 and the first air inlet 31 to complete the defrost cycle.

[0086] The first drying filter 120 is connected to the first heat exchanger 40, the second heat exchanger 60 and the first air port 51 respectively. The first drying subcooler is used to dry the cooling medium and filter impurities in the cooling medium. It can be understood that the cooling medium discharged from the first heat exchanger 40 or the second heat exchanger 60 passes through the first drying filter 120 and enters the economizer 50 through the first air port 51.

[0087] The second dry subcooler is connected to the separator 90 and the third opening 113. The second dry subcooler is used to dry the cooling medium and filter impurities in the cooling medium. After the compressor 30 discharges the cooling medium to the separator 90 through the first exhaust port 32, the cooling medium can also first enter the second dry filter 130 to dry and filter the cooling medium, and then enter the four-way valve 110 through the third opening 113, and then enter the first heat exchanger 40 through the second opening 112, or enter the second heat exchanger 60 through the fourth opening 114 and the second exhaust port 62.

[0088] The ball valve 140 is connected to the first heat exchanger 40, the second heat exchanger 60 and the first filter dryer 120 respectively. The ball valve 140 is a valve that can be closed manually. The cooling medium discharged from the first heat exchanger 40 or the second heat exchanger 60 first passes through the ball valve 140, then passes through the first filter dryer 120, and finally enters the economizer 50.

[0089] The first one-way valve 151 connects the second electronic expansion valve 82 and the first heat exchanger 40, which ensures that the cooling medium after pressure reduction and throttling by the second electronic expansion valve 82 can enter the first heat exchanger 40 through the first one-way valve 151. However, in the cooling mode, the cooling medium discharged from the first heat exchanger 40 cannot flow toward the second electronic expansion valve 82 through the first one-way valve 151, so as to prevent the cooling medium from flowing directly to the second heat exchanger 60 without being overcooled by the economizer 50, thereby ensuring the performance of the refrigeration equipment 100.

[0090] The second one-way valve 152 connects the first heat exchanger 40 and the ball valve 140, which ensures that the cooling medium after passing through the first heat exchanger 40 can flow to the ball valve 140 through the second one-way valve 152, and then enter the economizer 50 for supercooling through the first dry supercooler. However, in the heating mode, the cooling medium discharged from the second heat exchanger 60 cannot flow directly into the first heat exchanger 40 through the second one-way valve 152, so as to prevent the cooling medium from flowing directly to the first heat exchanger 40 without being supercooled by the economizer 50, thereby ensuring the performance of the refrigeration equipment 100.

[0091] The third one-way valve 153 connects the second air inlet 61 and the ball valve 140, which ensures that the cooling medium discharged from the second air inlet 61 can flow to the ball valve 140, and then pass through the first dry subcooler to enter the economizer 50 for subcooling. However, in the cooling mode, the cooling medium discharged from the first heat exchanger 40 cannot flow directly into the second heat exchanger 60 through the third one-way valve 153, so as to prevent the cooling medium from flowing directly to the second heat exchanger 60 without being subcooled by the economizer 50, thereby ensuring the performance of the refrigeration equipment 100.

[0092] The fourth check valve 154 connects the second electronic expansion valve 82 and the second air receiving port 61, and ensures that the cooling medium after the pressure reduction and throttling by the second electronic expansion valve 82 can flow into the second heat exchanger 60 through the fourth check valve 154. However, in the heating mode, the cooling medium discharged from the second heat exchanger 60 cannot flow directly into the second electronic expansion valve 82 through the fourth check valve 154, so as to prevent the cooling medium from flowing directly into the economizer 50 without being dried and filtered by the first drying filter 120 and detected by the detection device 20, so as to ensure the accurate control of the flow rate of the cooling medium in the refrigeration equipment 100, so as to ensure the performance of the refrigeration equipment 100.

[0093] The fifth one-way valve 155 connects the second opening 112 and the air supply port 33, which ensures that the cooling medium after evaporation and heat absorption by the first electronic expansion valve 81 and the economizer 50 can flow into the compressor 30 through the fifth one-way valve 155 and the air supply port 33, but prevents the cooling medium in the compressor 30 from directly entering the economizer 50 through the air supply port 33 and the second opening 112.

[0094] The sixth one-way valve 156 is connected to the second solenoid valve 72, which ensures that the liquid storage device 10 discharges the cooling medium to between the second electronic expansion valve 82 and the fourth one-way valve 154 through the discharge pipe 13 and the second solenoid valve 72, but stops the cooling medium from directly entering the liquid storage device 10 through the second solenoid valve 72 and the discharge pipe 13, so as to prevent the cooling medium from being insufficient in the refrigeration equipment 100 and ensure the performance of the refrigeration equipment 100.

[0095] The first throttling orifice 160 is arranged between the third electronic expansion valve and the first air intake port 31, and the second throttling orifice 170 is arranged between the second drying filter 130 and the third opening 113. The first throttling orifice 160 and the second throttling orifice 170 can reduce the pressure and throttle the cooling medium to prevent excessive pressure in the compressor 30 and the four-way valve 110.

[0096] Please combine Figure 1 and Figure 6 , the embodiment of the present application provides a regulation method, the regulation method comprising:

[0097] Step 01: Detecting status information of the cooling medium in the refrigeration device 100;

[0098] Step 02 : Discharge the cooling medium from the liquid storage device 10 of the refrigeration device 100 , or discharge the cooling medium from the refrigeration device 100 to the liquid storage device 10 according to the status information.

[0099] In the adjustment method of the embodiment of the present application, since the status information of the cooling medium in the refrigeration equipment 100 can be detected to learn the supercooling degree of the cooling medium in the refrigeration equipment 100, it is determined whether there is a lack of cooling medium in the refrigeration equipment 100. When there is a lack of cooling medium in the refrigeration equipment 100, that is, when the cooling medium is supercooled, the cooling medium is discharged from the liquid storage device 10 for replenishment. When there is no lack of cooling medium in the refrigeration equipment 100, excess cooling medium can be discharged from the refrigeration equipment 100 to the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0100] Specifically, the refrigeration device 100 includes a liquid storage device 10 and a detection device 20. The detection device 20 can detect the state information of the cooling medium in the refrigeration device 100, and determine whether to discharge the cooling medium from the liquid storage device 10 of the refrigeration device 100 to supplement the cooling medium in the pipeline of the refrigeration device 100, or to discharge the cooling medium from the refrigeration device 100 to the liquid storage device 10 to discharge the excess cooling medium in the pipeline of the refrigeration device 100 to the liquid storage device 10 for storage, so as to ensure that the refrigeration device 100 is in the best operating state.

[0101] Please combine Figures 1 to 7In some embodiments, the state information includes pressure and temperature. Step 02: discharging cooling medium from the liquid storage device 10 of the refrigeration device 100 or discharging cooling medium from the refrigeration device 100 to the liquid storage device 10 according to the state information, including:

[0102] Step 021: Calculate the subcooling degree of the cooling medium according to the pressure and temperature;

[0103] Step 022 : When the degree of supercooling meets a preset condition, the cooling medium is discharged from the liquid storage device 10 to the pipeline of the refrigeration equipment 100 and / or the compressor 30 of the refrigeration equipment 100 , or the cooling medium is discharged from the pipeline to the liquid storage device 10 .

[0104] Specifically, the detection device 20 can detect the pressure and temperature of the cooling medium in the refrigeration device 100 to obtain the temperature of the cooling medium at the saturated pressure and the temperature at the current pressure, thereby calculating the supercooling degree of the cooling medium. When the supercooling degree is small, it means that the cooling medium is insufficient in the refrigeration device 100 and the cooling medium needs to be supplemented. When the supercooling degree is large, it means that there is too much cooling medium in the refrigeration device 100 and the excess cooling medium needs to be discharged to the liquid storage device 10.

[0105] Therefore, when the degree of supercooling satisfies the preset conditions, such as when the degree of supercooling is low, the cooling medium can be discharged from the liquid storage device 10 to the pipeline of the refrigeration equipment 100, and / or the cooling medium can be discharged to the first air inlet 31 of the compressor 30 through the air outlet 101 of the liquid storage device 10 to replenish the cooling medium. For another example, when the degree of supercooling is high, the cooling medium can be discharged from the pipeline to the liquid storage device 10, that is, in the cooling mode, the cooling medium discharged from the first heat exchanger 40 passes through the second one-way valve 152 and the first solenoid valve 71, and is discharged into the liquid storage device 10 through the liquid storage pipeline 12. In the heating mode, the cooling medium discharged from the second heat exchanger 60 through the second air inlet 61 passes through the third one-way valve 153 and the first solenoid valve 71, and is discharged into the liquid storage device 10 through the liquid storage pipeline 12.

[0106] The refrigeration device 100 includes a cooling mode, a heating mode, a defrosting mode and a stop state. The preset condition may include a first preset condition and a second preset condition. The first preset condition includes a first preset threshold value and a second preset threshold value, and the first preset condition corresponds to the cooling mode. The second preset condition includes a third preset threshold value and a fourth preset threshold value, and the second preset condition corresponds to the heating mode.

[0107] When the refrigeration device 100 is in the refrigeration mode and the degree of supercooling is less than or equal to the first preset threshold, it is determined that the refrigeration device 100 lacks cooling medium.

[0108] In this way, the refrigeration equipment 100 can open the second solenoid valve 72 so that the liquid storage device 10 can discharge the cooling medium through the discharge pipeline 13 and merge with the cooling medium after the pressure reduction and throttling by the second electronic expansion valve 82 to replenish the cooling medium. The refrigeration equipment 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the gaseous cooling medium inside the liquid storage device 10 through the air outlet 101 and the first air intake port 31 to replenish the cooling medium. The refrigeration equipment 100 can also open the second solenoid valve 72 and the third solenoid valve 73 at the same time so that the liquid storage device 10 can replenish the cooling medium through the discharge pipeline 13 and the air outlet 101 at the same time, thereby ensuring that the refrigeration equipment 100 is in the best working state.

[0109] Preferably, when the refrigeration device 100 is in the refrigeration mode and the supercooling degree is less than or equal to a first preset threshold value, such as the supercooling degree is less than a preset temperature, such as less than or equal to 5°C, the refrigeration device 100 may first open the second solenoid valve 72 to replenish the cooling medium of the refrigeration device 100 through the liquid discharge device, and continuously detect whether the status information is less than or equal to the first preset threshold value. If after running for a period of time (such as 10 minutes), the status information is still less than or equal to the first preset threshold value, the refrigeration device 100 may open the third solenoid valve 73 again to enable the compressor 30 to absorb the gaseous cooling medium in the liquid storage device 10 into the interior of the compressor 30 through the air outlet 101 and the first air inlet 31 to further replenish the cooling medium.

[0110] When the refrigeration device 100 is in the refrigeration mode and the degree of supercooling is greater than a second preset threshold, such as greater than 6° C., it can be determined that there is excess cooling medium in the refrigeration device 100 .

[0111] In this way, the refrigeration equipment 100 can open the first solenoid valve 71 so that part of the cooling medium discharged from the first heat exchanger 40 can enter the cylinder 11 through the liquid storage pipeline 12, and discharge the excess cooling medium in the refrigeration equipment 100 into the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0112] When the refrigeration device 100 is in the heating mode and the supercooling degree is less than or equal to the third preset threshold, it is determined that the refrigeration device 100 lacks the cooling medium.

[0113] In this way, the refrigeration equipment 100 can open the second solenoid valve 72 so that the liquid storage device 10 can discharge the cooling medium through the discharge pipeline 13 and merge with the cooling medium after the pressure reduction and throttling by the second electronic expansion valve 82 to replenish the cooling medium. The refrigeration equipment 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the cooling medium inside the liquid storage device 10 through the air outlet 101 and the first air intake port 31 to replenish the cooling medium. The refrigeration equipment 100 can also open the second solenoid valve 72 and the third solenoid valve 73 at the same time so that the liquid storage device 10 can replenish the cooling medium through the discharge pipeline 13 and the air outlet 101 at the same time, thereby ensuring that the refrigeration equipment 100 is in the best working state.

[0114] Preferably, when the refrigeration device 100 is in the heating mode and the supercooling degree is less than or equal to the third preset threshold value, such as the supercooling degree is less than the preset temperature, such as less than or equal to 3°C, the refrigeration device 100 may first open the second solenoid valve 72 to replenish the cooling medium of the refrigeration device 100 through the drainage device, and continuously detect whether the status information is less than or equal to the third preset threshold value. If after running for a period of time (such as 10 minutes), the status information is still less than or equal to the third preset threshold value, the refrigeration device 100 may open the third solenoid valve 73 again to enable the compressor 30 to absorb the gaseous cooling medium in the liquid storage device 10 into the interior of the compressor 30 through the air outlet 101 and the first air inlet 31 to further replenish the cooling medium.

[0115] When the refrigeration device 100 is in the heating mode and the supercooling degree is greater than a fourth preset threshold, such as greater than 4° C., it can be determined that there is excess cooling medium in the refrigeration device 100 .

[0116] In this way, the refrigeration equipment 100 can open the first solenoid valve 71 so that part of the cooling medium discharged from the second heat exchanger 60 can enter the cylinder 11 through the liquid storage pipeline 12, and discharge the excess cooling medium in the refrigeration equipment 100 into the liquid storage device 10, thereby ensuring that the refrigeration equipment 100 is in the best operating state.

[0117] When the refrigeration equipment 100 is in the defrost mode, the detection device 20 can detect the pressure of the cooling medium before entering the economizer 50, that is, the status information, and when the pressure is greater than or equal to the fifth preset threshold, it is determined that there is too much cooling medium in the first heat exchanger 40 and drainage is required.

[0118] The refrigeration device 100 can open the first solenoid valve 71 so that the liquid storage device 10 can discharge excess cooling medium into the liquid storage device 10 through the liquid storage pipeline 12. The refrigeration device 100 can also open the third solenoid valve 73 so that the compressor 30 can absorb the gaseous cooling medium in the liquid storage device 10 into the compressor 30 through the first air inlet 31 and the air outlet 101, so that the liquid storage device 10 can store more liquid cooling medium.

[0119] Preferably, when the refrigeration equipment 100 is in the defrost mode and the pressure is greater than or equal to the fifth preset threshold value, such as when the pressure is greater than or equal to the preset pressure, the refrigeration equipment 100 simultaneously opens the first solenoid valve 71 and the third solenoid valve 73 to allow the liquid storage device 10 to pass through the liquid storage pipeline 12 and the air outlet 101, and at the same time, discharges excess cooling medium in the first heat exchanger 40 into the liquid storage device 10 to prevent excess liquid cooling medium in the first heat exchanger 40 from entering the compressor 30 through the first air inlet 31 when switching to the heating mode after the defrost mode ends, causing liquid hammer, thereby ensuring the stability of the refrigeration equipment 100.

[0120] Furthermore, when the refrigeration equipment 100 is in the defrost mode, if the liquid level switch 14 detects that the capacity of the cooling medium in the liquid storage device 10 reaches a predetermined capacity, the refrigeration equipment 100 needs to close the third solenoid valve 73, that is, stop discharging the cooling medium to the compressor 30, so as to prevent the compressor 30 from sucking in liquid cooling medium into the compressor 30 through the first air inlet 31 and the air outlet 101, causing wet compression, thereby ensuring the stability of the refrigeration equipment 100.

[0121] When the refrigeration equipment 100 is in a stopped state, the refrigeration equipment 100 can open the first solenoid valve 71 to collect the cooling medium in the refrigeration equipment 100 into the liquid storage device 10. The refrigeration equipment 100 can also open the third solenoid valve 73 to collect the gaseous cooling medium in the liquid storage device 10 into the compressor 30. The refrigeration equipment 100 can also open the first solenoid valve 71 and the third solenoid valve 73 at the same time to collect the gaseous cooling medium in the refrigeration equipment 100 into the compressor 30, and collect the liquid cooling medium into the liquid storage device 10, thereby completing the centralized collection of the cooling medium when the refrigeration equipment 100 is shut down, thereby preventing the cooling medium from causing frozen pipes to the first heat exchanger 40 and the second heat exchanger 60, so as to ensure the stability of the refrigeration equipment 100.

[0122] In addition, when the refrigeration equipment 100 is in a stopped state, if the liquid level switch 14 detects that the capacity of the cooling medium in the liquid storage device 10 reaches a predetermined capacity, the refrigeration equipment 100 needs to close the third solenoid valve 73, that is, stop discharging the cooling medium to the compressor 30, so as to prevent the liquid cooling medium in the liquid storage device 10 from entering the interior of the compressor 30, causing the internal pressure of the liquid storage device 10 to be low, resulting in a low pressure alarm problem when the refrigeration equipment 100 is working, thereby ensuring the stability of the refrigeration equipment 100.

[0123] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0124] It is worth mentioning that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" and "second" may explicitly or implicitly include at least one feature. In the description of this application, the meaning of "multiple" is at least two, two in one embodiment, three, unless otherwise clearly defined.

[0125] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that: include: A liquid storage device, the liquid storage device is used to store or discharge cooling medium; A detection device is used to detect the status information of the cooling medium in the refrigeration device, and discharge the cooling medium from the liquid storage device according to the status information, or discharge the cooling medium from the refrigeration device to the liquid storage device.

2. The refrigeration equipment according to claim 1, characterized in that: The liquid storage device comprises: A cylinder, the cylinder being used to store the cooling medium; a liquid storage pipeline, wherein at least a portion of the liquid storage pipeline is located in the cylinder and is used to discharge the cooling medium into the cylinder; a liquid discharge pipeline, wherein at least a portion of the liquid discharge pipeline is located in the cylinder, and the liquid discharge pipeline is used to discharge the cooling medium in the cylinder; A liquid level switch, wherein the liquid level switch is at least partially located in the cylinder, and the liquid level switch is used to detect the capacity of the cooling medium in the cylinder.

3. The refrigeration equipment according to claim 2, characterized in that: The refrigeration equipment also includes: A compressor, the compressor comprising a first air intake port and a first air exhaust port; a first heat exchanger, the first heat exchanger being in communication with the first exhaust port; an economizer, the first heat exchanger being in communication with the economizer, the detection device being located between the economizer and the first heat exchanger; and The second heat exchanger includes a second air intake port and a second exhaust port, the second air intake port is connected to the economizer, the second exhaust port is connected to the first air intake port, the liquid storage pipeline connects the first heat exchanger and the second heat exchanger, and the liquid discharge pipeline is connected between the economizer and the second heat exchanger.

4. The refrigeration equipment according to claim 3, characterized in that: The cylinder is formed with an air outlet, and the air outlet extends in a direction away from the cylinder. The refrigeration equipment also includes a first solenoid valve, a second solenoid valve and a third solenoid valve. The first solenoid valve is connected to the first heat exchanger, the liquid storage pipeline and the second air inlet, the second solenoid valve is connected to the discharge pipeline and the second air inlet, and the third solenoid valve is connected to the air outlet and the first air inlet.

5. The refrigeration equipment according to claim 4, characterized in that: When the refrigeration device is in a refrigeration mode and the state information is less than or equal to a first preset threshold, the second solenoid valve and / or the third solenoid valve is opened; When the refrigeration device is in the refrigeration mode and the state information is greater than a second preset threshold, the first solenoid valve is opened; When the refrigeration device is in a heating mode and the state information is less than or equal to a third preset threshold, the second solenoid valve and / or the third solenoid valve is opened; When the refrigeration device is in the heating mode and the state information is greater than a fourth preset threshold, the first solenoid valve is opened; When the refrigeration device is in defrost mode and the state information is greater than or equal to a fifth preset threshold, the first solenoid valve and / or the third solenoid valve is opened; When the refrigeration device is in the defrost mode and the capacity reaches a preset capacity, the third solenoid valve is closed; When the refrigeration device is in a stopped state, the first solenoid valve and / or the third solenoid valve is opened; When the refrigeration equipment is in the stopped state and the capacity reaches the preset capacity, the third solenoid valve is closed.

6. The refrigeration device according to claim 4, characterized in that: The compressor also includes an air supply port, and the economizer includes a first air port, a second air port, a third air port and a fourth air port, the first air port is connected to the first heat exchanger and the second air receiving port, the second air port is connected to the air supply port, and the refrigeration equipment also includes a first electronic expansion valve and a second electronic expansion valve, the first electronic expansion valve is connected to the third air port and the fourth air port respectively, the second electronic expansion valve is connected to the fourth air port and the second air receiving port, and the second electronic expansion valve is also connected to the fourth air port and the first heat exchanger.

7. The refrigeration device according to claim 6, characterized in that: The refrigeration equipment also includes a separator, a four-way valve, a first drying filter, a second drying filter and a ball valve. The four-way valve includes a first opening, a second opening, a third opening and a fourth opening which are interconnected, the first opening is connected to the separator, the second opening is connected to the first heat exchanger, the third opening is connected to the first air receiving port, and the fourth opening is connected to the second air exhaust port; the first drying filter is respectively connected to the first heat exchanger, the second heat exchanger and the first air port, and the detection device is arranged between the first drying filter and the first air port; the second drying filter is connected to the separator and the third opening; the ball valve is respectively connected to the first heat exchanger, the second heat exchanger and the first drying filter.

8. The refrigeration device according to claim 7, characterized in that: The refrigeration equipment also includes a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a fifth one-way valve and a sixth one-way valve. The first one-way valve is connected to the second electronic expansion valve and the first heat exchanger, the second one-way valve is connected to the first heat exchanger and the ball valve, the third one-way valve is connected to the second air intake port and the ball valve, the fourth one-way valve is connected to the second electronic expansion valve and the second air intake port, the fifth one-way valve is connected to the second air port and the air supply port, and the sixth one-way valve is connected to the second solenoid valve to discharge the cooling medium between the second electronic expansion valve and the fourth one-way valve.

9. The refrigeration device according to claim 7, characterized in that: The refrigeration device further includes a first throttling orifice plate and a second throttling orifice plate, wherein the first throttling orifice plate is disposed between the third electronic expansion valve and the first air receiving port, and the second throttling orifice plate is disposed between the second drying filter and the third opening.

10. A method of regulation, characterized in that: include: Detecting status information of cooling medium in refrigeration equipment; According to the state information, the cooling medium is discharged from the liquid storage device of the refrigeration equipment, or the cooling medium is discharged from the refrigeration equipment to the liquid storage device.

11. The adjustment method according to claim 10, characterized in that: The state information includes pressure and temperature, and discharging the cooling medium from a liquid storage device of a refrigeration device or discharging the cooling medium from the refrigeration device to the liquid storage device according to the state information includes: Calculating the degree of subcooling of the cooling medium according to the pressure and temperature; When the degree of supercooling meets a preset condition, the cooling medium is discharged from the liquid storage device to a pipeline of a refrigeration device and / or a compressor of a refrigeration device, or the cooling medium is discharged from the pipeline to the liquid storage device.

12. The adjustment method according to claim 11, characterized in that: The refrigeration device includes a refrigeration mode, the preset condition includes a first preset condition, the first preset condition includes a first preset threshold and a second preset threshold, and when the supercooling degree satisfies the preset condition, discharging the cooling medium from the liquid storage device to a pipeline of the refrigeration device and / or a compressor of the refrigeration device, or discharging the cooling medium from the pipeline to the liquid storage device, comprises: When the refrigeration device is in the refrigeration mode and the degree of supercooling is less than or equal to the first preset threshold, discharging the cooling medium from the liquid storage device to the pipeline and / or the compressor; When the refrigeration device is in a refrigeration mode and the degree of supercooling is greater than the second preset threshold, the cooling medium is discharged from the pipeline to the liquid storage device.

13. The adjustment method according to claim 11, characterized in that: The refrigeration device includes a heating mode, the preset condition includes a second preset condition, the second preset condition includes a third preset threshold value and a fourth preset threshold value, and when the supercooling degree satisfies the preset condition, discharging the cooling medium from the liquid storage device to a pipeline of the refrigeration device and / or a compressor of the refrigeration device, or discharging the cooling medium from the pipeline to the liquid storage device, comprises: When the refrigeration device is in a heating mode and the degree of supercooling is less than or equal to the third preset threshold, discharging the cooling medium from the liquid storage device to the pipeline and / or the compressor; When the refrigeration device is in a heating mode and the degree of supercooling is less than or equal to the fourth preset threshold, the cooling medium is discharged from the pipeline to the liquid storage device.

14. The adjustment method according to claim 11, characterized in that: The refrigeration device further includes a defrost mode, and the adjustment method further includes: When the refrigeration device is in the defrost mode and the pressure is greater than or equal to a fifth preset threshold, discharging the cooling medium from the liquid storage device to the pipeline and / or the compressor; When the refrigeration equipment is in the defrost mode and the capacity of the cooling medium stored in the liquid storage device is greater than or equal to a predetermined capacity, the cooling medium is stopped from being discharged to the compressor.

15. The adjustment method according to claim 11, characterized in that: The adjustment method further comprises: When the refrigeration equipment is in a stopped state, discharging the cooling medium from the liquid storage device to the pipeline and / or the compressor; When the refrigeration equipment is in the stopped state and the capacity of the cooling medium stored in the liquid storage device is greater than or equal to a predetermined capacity, the cooling medium is stopped from being discharged to the compressor.

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