Air conditioner liquid storage tank and air conditioner system

Abstract

The invention belongs to the technical field of air conditioner liquid storage tanks, and discloses an air conditioner liquid storage tank and an air conditioner system. The air conditioner liquid storage tank is located between the condenser and the expansion valve and comprises a tank body, a first pipeline, a second pipeline, a third pipeline and a filtering piece. The tank body is used for storing a refrigerant. The first pipeline is spirally arranged along the outer side wall of the tank body, and an inlet of the first pipeline is communicated with the condenser. The second pipeline is spirally arranged along the inner side wall of the tank body; an inlet of the second pipeline is communicated with an outlet of the first pipeline. The third pipeline is located in the tank body, and an outlet of the third pipeline communicates with the expansion valve. The filtering piece is positioned in the tank body, and two ends are respectively communicated with the outlet of the second pipeline and the inlet of the third pipeline. The liquid storage tank of the air conditioner has a liquefying function, the supercooling degree of a refrigerant can be improved, the purity of the refrigerant is ensured, and the refrigerating efficiency of an air conditioning system is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning liquid storage tank technology, and more particularly to an air conditioning liquid storage tank and an air conditioning system. Background Technology

[0002] Liquid receivers are generally divided into two types: high-pressure liquid receivers and low-pressure liquid receivers. High-pressure liquid receivers are those installed after the condenser and before the expansion valve. In other words, high-pressure liquid receivers are installed on high-pressure liquid pipelines to store condensed high-pressure liquid refrigerant, ensuring a stable liquid supply to the expansion valve. They are commonly found in large commercial air conditioning or cold storage systems (such as screw chillers).

[0003] Typically, the liquid refrigerant condensed by the condenser still contains some gaseous refrigerant. Since the existing high-pressure liquid receiver only has the function of storing liquid, the refrigerant in the high-pressure liquid receiver contains a gaseous portion, resulting in insufficient subcooling of the refrigerant and thus low cooling efficiency of the air conditioning system.

[0004] Therefore, there is an urgent need to propose an air conditioning liquid storage tank and air conditioning system to solve the above problems. Summary of the Invention

[0005] The first objective of this invention is to provide an air conditioning liquid receiver that has a liquefaction function, which can improve the subcooling of the refrigerant, ensure the purity of the refrigerant, and improve the cooling efficiency of the air conditioning system.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] An air conditioning liquid receiver, located between the condenser and the expansion valve, comprises:

[0008] Tank, used to store refrigerant;

[0009] A first pipe is spirally arranged along the outer side wall of the tank, and the inlet of the first pipe is connected to the condenser;

[0010] The second pipe is spirally arranged along the inner side wall of the tank, and the inlet of the second pipe is connected to the outlet of the first pipe;

[0011] A third pipe is located inside the tank, and the outlet of the third pipe is connected to the expansion valve;

[0012] A filter element is located inside the tank, and its two ends are respectively connected to the outlet of the second pipe and the inlet of the third pipe.

[0013] As an optional technical solution for an air conditioning liquid storage tank, the first pipe is spirally arranged from bottom to top, with the inlet of the first pipe located at the bottom of the outer wall of the tank body and the outlet of the first pipe located at the top of the outer wall of the tank body. The second pipe is spirally arranged from top to bottom, with the outlet of the second pipe located at the bottom of the inner wall of the tank body.

[0014] As an optional technical solution for an air conditioning liquid storage tank, the filter element is located at the bottom of the tank body, and the third pipe is located inside the spiral ring of the second pipe.

[0015] As an optional technical solution for an air conditioning liquid storage tank, the air conditioning liquid storage tank further includes a partition plate connected to the inner wall of the tank body, dividing the tank body from bottom to top into a first cavity and a second cavity. The third pipe is located in the first cavity and passes through the partition plate to communicate with the second cavity. The outlet of the second cavity is connected to the expansion valve.

[0016] As an optional technical solution for an air conditioning liquid storage tank, the air conditioning liquid storage tank further includes a first pressure plate, which is embedded in the side wall of the tank body and located at the outlet of the second cavity, for fixing the pipe of the expansion valve.

[0017] As an optional technical solution for an air conditioning liquid storage tank, the air conditioning liquid storage tank further includes a mesh frame, which is located inside the tank and connected to the inner wall of the tank. The second pipe is located on the mesh frame, the filter element is located below the mesh frame, and the third pipe passes through the mesh frame and is connected to the filter element.

[0018] As an optional technical solution for an air conditioning liquid storage tank, the air conditioning liquid storage tank also includes a drying package, which is located inside the tank and within the spiral coil of the second pipe.

[0019] As an optional technical solution for air conditioning liquid storage tanks, the filter element is a filter screen.

[0020] As an optional technical solution for an air conditioning liquid storage tank, the air conditioning liquid storage tank further includes a second pressure plate and a third pressure plate. The second pressure plate and the third pressure plate are both embedded in the side wall of the tank body, and the second pressure plate is used to fix the outlet of the first pipe, and the third pressure plate connects and fixes the outlet of the first pipe and the inlet of the second pipe.

[0021] The second objective of this invention is to provide an air conditioning system with high cooling efficiency.

[0022] To achieve this object, the present invention adopts the following technical solutions:

[0023] An air conditioning system includes a compressor, a condenser, an expansion valve, an evaporator, and an air conditioning liquid receiver tank, wherein the compressor, the condenser, the air conditioning liquid receiver tank, the expansion valve, and the evaporator are connected in sequence.

[0024] The beneficial effects of this invention are:

[0025] The air conditioning liquid receiver provided by this invention is located between the condenser and the expansion valve, and includes a tank body, a first pipe, a second pipe, a third pipe, and a filter element. The inlet of the first pipe is connected to the condenser, the inlet of the second pipe is connected to the outlet of the first pipe, the two ends of the filter element are connected to the outlet of the second pipe and the inlet of the third pipe, respectively, and the outlet of the third pipe is connected to the expansion valve. The refrigerant from the condenser flows sequentially through the first pipe, the second pipe, the filter element, and the third pipe before entering the expansion valve. The first pipe and the second pipe are spirally arranged along the outer and inner walls of the tank body, respectively. The third pipe and the filter element are both located inside the tank body. The refrigerant can be pressurized and liquefied and dissipated through centrifugal force in the first pipe, and then pressurized and liquefied and dissipated through centrifugal force in the second pipe, thereby completely liquefying the gaseous portion of the refrigerant into liquid refrigerant. This gives the air conditioning liquid receiver a liquefaction function, which can further complete the subcooling action of the refrigerant, improve the subcooling degree of the refrigerant, and then filter out impurities through the filter element to ensure the purity of the refrigerant, thereby improving the cooling efficiency of the air conditioning system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the air conditioning liquid storage tank provided in an embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional view of the air conditioning liquid storage tank provided in an embodiment of the present invention.

[0028] In the picture:

[0029] 100. Tank body; 110. First cavity; 120. Second cavity; 200. First pipe; 300. Second pipe; 400. Third pipe; 500. Filter element; 600. Partition; 700. Wire mesh frame. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0034] This embodiment provides an air conditioning liquid receiver tank, which has a liquefaction function, can improve the subcooling of the refrigerant, ensure the purity of the refrigerant, and improve the cooling efficiency of the air conditioning system.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the air conditioner refrigerant receiver is located between the condenser (not shown) and the expansion valve (not shown), and includes a tank body 100, a first pipe 200, a second pipe 300, a third pipe 400, and a filter element 500. The tank body 100 stores refrigerant. The first pipe 200 is spirally arranged along the outer wall of the tank body 100, and its inlet is connected to the condenser. The second pipe 300 is spirally arranged along the inner wall of the tank body 100, and its inlet is connected to the outlet of the first pipe 200. The third pipe 400 is located inside the tank body 100, and its outlet is connected to the expansion valve. The filter element 500 is located inside the tank body 100, and its two ends are connected to the outlet of the second pipe 300 and the inlet of the third pipe 400, respectively.

[0036] Based on the above design, the inlet of the first pipe 200 is connected to the condenser, the inlet of the second pipe 300 is connected to the outlet of the first pipe 200, the two ends of the filter element 500 are connected to the outlet of the second pipe 300 and the inlet of the third pipe 400 respectively, and the outlet of the third pipe 400 is connected to the expansion valve. The refrigerant from the condenser flows through the first pipe 200, the second pipe 300, the filter element 500 and the third pipe 400 in sequence before entering the expansion valve. The first pipe 200 and the second pipe 300 are spirally arranged along the outer and inner walls of the tank 100, respectively. The third pipe 400 and the filter element 500 are both located inside the tank 100. The refrigerant can be pressurized and liquefied and dissipated by centrifugal force in the first pipe 200, and then pressurized and liquefied and dissipated by centrifugal force in the second pipe 300. This process completely liquefies the gaseous portion of the refrigerant into liquid refrigerant, giving the air conditioning liquid storage tank a liquefaction function. This further completes the subcooling action of the refrigerant, increasing the subcooling degree of the refrigerant. Then, impurities are filtered out by the filter element 500 to ensure the purity of the refrigerant, thereby improving the cooling efficiency of the air conditioning system.

[0037] In this embodiment, the first pipe 200 is spirally arranged from bottom to top. The inlet of the first pipe 200 is located at the bottom of the outer wall of the tank 100, and the outlet of the first pipe 200 is located at the top of the outer wall of the tank 100. The second pipe 300 is spirally arranged from top to bottom, and the outlet of the second pipe 300 is located at the bottom of the inner wall of the tank 100. The refrigerant first flows from bottom to top in the first pipe 200, and then flows from top to bottom in the second pipe 300. Finally, the liquid refrigerant flows to the bottom of the tank 100 by its own gravity, so that the refrigerant that has not been liquefied after two centrifugal pressurizations remains in the upper part of the tank 100, preventing the remaining gaseous refrigerant from entering the third pipe 400 and flowing to the expansion valve.

[0038] Furthermore, the filter element 500 is located at the bottom of the tank 100, allowing the filter element 500 to fully contact the liquid refrigerant located at the bottom of the tank 100. Under the pressure of the air conditioning system, the liquid refrigerant is forced through the filter element 500 from the bottom of the third pipe 400 to the top of the third pipe 400, improving the filtration efficiency of the refrigerant. The third pipe 400 is located inside the spiral ring of the second pipe 300, saving space inside the tank 100.

[0039] In this embodiment, the filter element 500 is a filter screen.

[0040] Furthermore, the air conditioning refrigerant tank also includes a partition 600, which is connected to the inner wall of the tank body 100, dividing the tank body 100 into a first chamber 110 and a second chamber 120 from bottom to top. A third pipe 400 is located in the first chamber 110 and passes through the partition 600 to communicate with the second chamber 120. The outlet of the second chamber 120 is connected to the expansion valve. Liquid refrigerant can accumulate in the second chamber 120, ensuring a stable liquid supply to the expansion valve. The partition 600 isolates the first chamber 110 and the second chamber 120, preventing any remaining small amount of gaseous refrigerant from entering the second chamber 120.

[0041] Furthermore, the air conditioning liquid receiver also includes a first pressure plate, which is embedded in the side wall of the tank 100 and located at the outlet of the second cavity 120, for fixing the pipe of the expansion valve so that the liquid refrigerant can leave the tank 100 smoothly.

[0042] Similarly, the air conditioner liquid receiver also includes a second pressure plate and a third pressure plate. Both the second and third pressure plates are embedded in the side wall of the tank body 100. The second pressure plate is used to fix the outlet of the first pipe 200, and the third pressure plate connects and fixes the outlet of the first pipe 200 and the inlet of the second pipe 300. The second pressure plate allows the refrigerant to smoothly enter the second pipe 300 (inside the tank body 100) from the first pipe 200 (outside the tank body 100).

[0043] Optionally, the air conditioning liquid storage tank also includes a mesh frame 700, which is located inside the tank body 100 and connected to the inner wall of the tank body 100. The second pipe 300 is located on the mesh frame 700, the filter element 500 is located below the mesh frame 700, and the third pipe 400 passes through the mesh frame 700 and is connected to the filter element 500. The mesh frame 700 can support the second pipe 300 and fix the filter element 500 and the third pipe 400.

[0044] Optionally, the air conditioning liquid receiver also includes a desiccant (not shown in the figure). The desiccant is located inside the tank 100 and within the spiral coil of the second pipe 300. The desiccant is used to absorb moisture inside the tank 100. The location of the desiccant within the spiral coil of the second pipe 300 saves space and avoids contact with the liquid refrigerant at the bottom of the tank 100, absorbing only the moisture around the second pipe 300.

[0045] This embodiment also provides an air conditioning system with high cooling efficiency.

[0046] Specifically, the air conditioning system includes a compressor (not shown in the figure), a condenser, an expansion valve, an evaporator (not shown in the figure), and the aforementioned air conditioning liquid receiver. The compressor, condenser, air conditioning liquid receiver, expansion valve, and evaporator are connected in sequence. After being compressed by the compressor, the refrigerant enters the condenser for condensation, and then enters the air conditioning liquid receiver through the inlet of the first pipe 200. In the air conditioning liquid receiver, the refrigerant is further liquefied, cooled, and filtered and purified to improve its cooling capacity, thereby improving the cooling efficiency of the entire air conditioning system. Afterward, the refrigerant exits from the outlet of the second chamber 120, enters the expansion valve through a pipe, then enters the evaporator for evaporation, and finally returns to the compressor, in a continuous cycle.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An air conditioning liquid receiver, located between the condenser and the expansion valve, characterized in that, The air conditioning liquid storage tank includes: Tank (100), used for storing refrigerant; A first pipe (200) is spirally arranged along the outer side wall of the tank (100), and the inlet of the first pipe (200) is connected to the condenser; The second pipe (300) is spirally arranged along the inner side wall of the tank (100), and the inlet of the second pipe (300) is connected to the outlet of the first pipe (200); A third pipe (400) is located inside the tank (100), and the outlet of the third pipe (400) is connected to the expansion valve; A filter element (500) is located inside the tank (100) and its two ends are respectively connected to the outlet of the second pipe (300) and the inlet of the third pipe (400).

2. The air conditioning liquid storage tank according to claim 1, characterized in that, The first pipe (200) is spirally arranged from bottom to top. The inlet of the first pipe (200) is located at the bottom of the outer side wall of the tank (100), and the outlet of the first pipe (200) is located at the top of the outer side wall of the tank (100). The second pipe (300) is spirally arranged from top to bottom, and the outlet of the second pipe (300) is located at the bottom of the inner side wall of the tank (100).

3. The air conditioning liquid storage tank according to claim 2, characterized in that, The filter element (500) is located at the bottom of the tank (100), and the third pipe (400) is located inside the spiral ring of the second pipe (300).

4. The air conditioning liquid storage tank according to claim 3, characterized in that, The air conditioning liquid storage tank also includes a partition (600), which is connected to the inner wall of the tank body (100) and divides the tank body (100) into a first cavity (110) and a second cavity (120) from bottom to top. The third pipe (400) is located in the first cavity (110) and passes through the partition (600) to communicate with the second cavity (120). The outlet of the second cavity (120) is connected to the expansion valve.

5. The air conditioning liquid storage tank according to claim 4, characterized in that, The air conditioning liquid storage tank also includes a first pressure plate, which is embedded in the side wall of the tank body (100) and located at the outlet of the second cavity (120) for fixing the pipe of the expansion valve.

6. The air conditioning liquid storage tank according to claim 3, characterized in that, The air conditioning liquid storage tank also includes a mesh frame (700), which is located inside the tank body (100) and connected to the inner wall of the tank body (100). The second pipe (300) is located on the mesh frame (700), the filter element (500) is located below the mesh frame (700), and the third pipe (400) passes through the mesh frame (700) and is connected to the filter element (500).

7. The air conditioning liquid storage tank according to claim 3, characterized in that, The air conditioning liquid storage tank also includes a drying package, which is located inside the tank body (100) and within the spiral ring of the second pipe (300).

8. The air conditioning liquid storage tank according to claim 3, characterized in that, The filter element (500) is a filter screen.

9. The air conditioning liquid storage tank according to any one of claims 1-8, characterized in that, The air conditioning liquid storage tank also includes a second pressure plate and a third pressure plate. The second pressure plate and the third pressure plate are both embedded in the side wall of the tank body (100). The second pressure plate is used to fix the outlet of the first pipe (200), and the third pressure plate connects and fixes the outlet of the first pipe (200) and the inlet of the second pipe (300).

10. An air conditioning system, characterized in that, It includes a compressor, a condenser, an expansion valve, an evaporator, and an air conditioning liquid storage tank as described in any one of claims 1-9, wherein the compressor, the condenser, the air conditioning liquid storage tank, the expansion valve, and the evaporator are connected in sequence.

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