Composite structure of liquid accumulator and gas separator
By designing a composite structure of the liquid reservoir and gas, and using the pressure relief plate to balance the high and low pressure pressure, the fault problem caused by the long circulation time of the high and low pressure during the initial start of the split refrigeration product is solved, and the effect of increasing the refrigeration capacity and reducing the dryness of the refrigerant is achieved.
Patent Information
- Application Number
- CN202420634726.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-29
AI Technical Summary
When the split refrigeration product is initially turned on, due to the long connection pipeline, the high-pressure and low-pressure cycle times are too long, which is prone to high-pressure protection and low-pressure protection failures.
A composite structure of liquid reservoir and gas is designed, including a liquid reservoir and a gas-liquid separation tank. When the pressure relief plate reaches the set value, part of the refrigerant is bypassed to balance the high and low pressure pressure pressure, and eliminate faults.
It effectively increases the refrigeration capacity, reduces the dryness of refrigerant, reduces the refrigerant charge, eliminates high-pressure and low-pressure protection failures, saves materials and costs, and reduces CO2 emissions.
Smart Images
Figure CN222560328U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a composite structure of a liquid storage device and a gas separator. Background Art
[0002] For split-type refrigeration products, during the initial startup, the high-pressure and low-pressure cycle times are longer due to longer connecting pipes. Excessively long high-pressure and low-pressure cycle times will cause both high-pressure protection and low-pressure protection failures during startup. Utility Model Content
[0003] In view of the above problems, the utility model provides a composite structure of a liquid storage device and a gas separator, which effectively solves the problems pointed out in the background technology.
[0004] The technical solution adopted by the utility model is:
[0005] A composite structure of a liquid storage device and a gas separator comprises a liquid storage tank body and a gas-liquid separation tank body fixed in the liquid storage tank body, a liquid storage cavity is formed between the liquid storage tank body and the gas-liquid separation tank body, a gas-liquid separation cavity is formed in the gas-liquid separation tank body, a liquid storage inlet and a liquid storage outlet connected to the liquid storage cavity are provided on the liquid storage tank body, a gas-liquid separation inlet and a gas-liquid separation outlet connected to the gas-liquid separation cavity are provided on the gas-liquid separation tank body, and a pressure relief plate is provided on the gas-liquid separation cavity and the liquid storage cavity.
[0006] Preferably, the liquid storage inlet and the liquid storage outlet are located at the bottom of the liquid storage tank body.
[0007] Preferably, the gas-liquid separation inlet and the gas-liquid separation outlet are located at the top of the gas-liquid separation tank.
[0008] Preferably, the gas-liquid separation inlet forms a liquid inlet pipe in the gas-liquid separation chamber, the opening of the liquid inlet pipe in the gas-liquid separation chamber is located at the upper part of the gas-liquid separation chamber, and the gas-liquid separation outlet forms a U-shaped liquid outlet pipe in the gas-liquid separation chamber, and the opening of the U-shaped liquid outlet pipe in the gas-liquid separation chamber is higher than the opening of the liquid inlet pipe in the gas-liquid separation chamber.
[0009] The utility model utilizes the heat of the high-pressure end in the liquid storage chamber to heat the low-pressure end in the gas-liquid separation chamber, and utilizes the coldness of the low-pressure end to cool the high-pressure end, so that the low-pressure end generates superheat and the high-pressure end generates undercooling. After the high-pressure end increases the undercooling, the dryness of the refrigerant after throttling by the throttling valve can be reduced (that is, the gas refrigerant generated by throttling is reduced), thereby increasing the refrigerant mass flow in the evaporator and improving the cooling capacity.
[0010] In the utility model, the pressure relief plate is given corresponding resistance according to demand. When the pressure difference between the liquid storage chamber and the gas-liquid separation chamber reaches the set resistance of the pressure relief plate, part of the refrigerant is bypassed from the liquid storage chamber to the gas-liquid separation chamber. When the pressure difference between the high pressure and the low pressure reaches the set value, the high-pressure refrigerant is transferred to the low-pressure end, which not only increases the low pressure of the system, but also alleviates the problem of high pressure.
[0011] The utility model enables high-temperature refrigerant and low-temperature refrigerant to exchange heat, improves the suction superheat of the low-pressure end, eliminates the risk of liquid return in the system, improves the subcooling of the high-pressure end, reduces the refrigerant dryness after throttling, and improves the refrigeration capacity of the unit. Since the refrigerant dryness is reduced, the refrigerant charge amount can be reduced. The pressure relief plate can balance the high and low pressures when the high and low pressure difference is too large, adjust the high and low pressures, eliminate high-pressure protection and low-pressure protection failures, save external high and low pressure balancing devices, save costs, and combine the gas-liquid separator and the liquid storage into one, which can save materials and save costs.
[0012] The utility model has the following advantages:
[0013] Improve the cooling capacity of the system and eliminate the risk of liquid return in the system. When the cooling capacity is consistent, the refrigerant charge can be reduced, the failure of high-pressure protection and low-pressure protection can be eliminated, materials and costs can be saved, and the reduction of refrigerant charge can reduce CO2 emissions, which is beneficial to the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0015] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0017] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "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 present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.
[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] In the present utility model, unless otherwise clearly specified and limited, 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.
[0021] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0022] like Figure 1As shown, a composite structure of a liquid reservoir and a gas separator comprises a liquid storage tank body 1, and a gas-liquid separation tank body 2 fixed in the liquid storage tank body 1, a liquid storage cavity 3 is formed between the liquid storage tank body 1 and the gas-liquid separation tank body 2, a gas-liquid separation cavity 4 is formed in the gas-liquid separation tank body 2, a liquid storage inlet 5 and a liquid storage outlet 6 connected to the liquid storage cavity 3 are provided on the liquid storage tank body 1, a gas-liquid separation inlet 7 and a gas-liquid separation outlet 8 connected to the gas-liquid separation cavity 4 are provided on the gas-liquid separation tank body 2, and a pressure relief plate 9 is provided on the gas-liquid separation tank body 2 between the gas-liquid separation cavity 4 and the liquid storage cavity 3.
[0023] The liquid storage inlet 5 and the liquid storage outlet 6 are located at the bottom of the liquid storage tank body 1 .
[0024] The gas-liquid separation inlet 7 and the gas-liquid separation outlet 8 are located at the top of the gas-liquid separation tank body 2 .
[0025] The gas-liquid separation inlet 7 forms a liquid inlet pipe 10 in the gas-liquid separation chamber 4, and the opening of the liquid inlet pipe 10 in the gas-liquid separation chamber 4 is located at the upper part of the gas-liquid separation chamber 4. The gas-liquid separation outlet 8 forms a U-shaped liquid outlet pipe 11 in the gas-liquid separation chamber 4, and the opening of the U-shaped liquid outlet pipe 11 in the gas-liquid separation chamber 4 is higher than the opening of the liquid inlet pipe 10 in the gas-liquid separation chamber 4.
[0026] After the utility model is installed in the air conditioner, its working principle is as follows:
[0027] The high-temperature and high-pressure liquid refrigerant produced by the condenser enters the liquid storage chamber 3 through the liquid storage inlet 5 and then flows out from the liquid storage outlet 6;
[0028] The low-temperature and low-pressure gaseous refrigerant or gas-liquid mixed refrigerant produced by the evaporator enters the gas-liquid separation chamber 4 from the gas-liquid separation inlet 7 and then flows out from the gas-liquid separation outlet 8;
[0029] The pressure relief plate 9 is given a corresponding resistance according to demand. When the pressure difference between the high-pressure end in the liquid storage chamber 3 and the low-pressure end in the gas-liquid separation chamber 4 reaches the set resistance of the pressure relief plate 9, part of the refrigerant is bypassed from the liquid storage chamber 3 to the gas-liquid separation chamber 4 until the pressure difference between the liquid storage chamber 3 and the gas-liquid separation chamber 4 is less than the set resistance of the pressure relief plate 9. The pressure relief plate 9 will automatically reset to balance the pressure.
[0030] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.
Claims
1. A composite structure of a liquid storage device and a gas separator, characterized in that: The invention comprises a liquid storage tank body (1), and a gas-liquid separation tank body (2) fixed in the liquid storage tank body (1); a liquid storage cavity (3) is formed between the liquid storage tank body (1) and the gas-liquid separation tank body (2); a gas-liquid separation cavity (4) is formed in the gas-liquid separation tank body (2); a liquid storage inlet (5) and a liquid storage outlet (6) connected to the liquid storage cavity (3) are provided on the liquid storage tank body (1); a gas-liquid separation inlet (7) and a gas-liquid separation outlet (8) connected to the gas-liquid separation cavity (4) are provided on the gas-liquid separation tank body (2); and a pressure relief plate (9) is provided between the gas-liquid separation cavity (4) and the liquid storage cavity (3) on the gas-liquid separation tank body (2).
2. The composite structure of a liquid storage device and a gas separator according to claim 1, characterized in that: The liquid storage inlet (5) and the liquid storage outlet (6) are located at the bottom of the liquid storage tank body (1).
3. The composite structure of a liquid storage device and a gas separator according to claim 1, characterized in that: The gas-liquid separation inlet (7) and the gas-liquid separation outlet (8) are located at the top of the gas-liquid separation tank body (2).
4. The composite structure of a liquid storage device and a gas separator according to claim 3, characterized in that: The gas-liquid separation inlet (7) forms a liquid inlet pipe (10) in the gas-liquid separation chamber (4), and the opening of the liquid inlet pipe (10) in the gas-liquid separation chamber (4) is located at the upper part of the gas-liquid separation chamber (4). The gas-liquid separation outlet (8) forms a U-shaped liquid outlet pipe (11) in the gas-liquid separation chamber (4), and the opening of the U-shaped liquid outlet pipe (11) in the gas-liquid separation chamber (4) is higher than the opening of the liquid inlet pipe (10) in the gas-liquid separation chamber (4).