A liquid distributor, a compressor assembly comprising the liquid distributor and an air conditioner

Abstract

The application discloses a distributor, a compressor assembly comprising the same and an air conditioner. The distributor comprises a filter screen assembly, a cylinder, an exhaust port and an air inlet port, and a distribution cavity is formed in the cylinder; the filter screen assembly comprises a first filter screen assembly and a second filter screen assembly; the first filter screen assembly and the second filter screen assembly are arranged at the middle part of the distribution cavity in a spaced manner and divide the distribution cavity into three relatively independent cavities; the first filter screen assembly is close to the top of the cylinder and forms an exhaust cavity together with the top of the cylinder, and the exhaust port is arranged on the cylinder and communicates with the exhaust cavity; the first filter screen assembly, the second filter screen assembly and the cylinder form an air inlet cavity, and the air inlet port is arranged on the cylinder and communicates with the air inlet cavity. By arranging the filter screen assembly and utilizing the positional relationship between the exhaust port and the filter screen assembly, the distribution effect of the distributor is improved, and the internal volume of the distributor is fully utilized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid separator, in particular to a liquid separator, a compressor assembly comprising the liquid separator and an air conditioner. BACKGROUND

[0002] The refrigerant sucked by the suction end of the compressor is usually a gas-liquid mixture, which contains gaseous or liquid refrigerant or refrigeration oil. When the gas-liquid mixture sucked by the compressor contains excessive liquid medium, it will cause the wet compression phenomenon of the compressor, and the wet compression phenomenon is likely to cause damage to the compressor. Generally, a liquid separator is arranged at the suction end of the compressor to separate the gas-liquid mixture and avoid the excessive liquid medium being sucked by the compressor. The suction end of the compressor is connected with the gas outlet of the liquid separator, and the gas outlet of the existing liquid separator is arranged below the filter screen assembly. After the gas-liquid mixture passes through the filter screen assembly, the liquid medium cannot be effectively separated, and the mixture containing a large amount of liquid medium may directly enter the compressor, causing the wet compression of the compressor, thereby affecting the reliability of the compressor. At the same time, since the effective volume of the existing liquid separator is calculated from the gas outlet, the space above the gas outlet in the liquid separator cannot be effectively utilized. SUMMARY

[0003] The present application provides a liquid separator, a compressor assembly comprising the liquid separator and an air conditioner, by arranging a filter screen assembly and utilizing the positional relationship between the gas outlet and the filter screen assembly, the liquid separation effect of the liquid separator is improved, and the internal volume of the liquid separator is fully utilized.

[0004] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a liquid separator, comprising a filter screen assembly, a cylinder, an exhaust port and an inlet port, a liquid separation cavity is formed in the cylinder; the filter screen assembly comprises a first filter screen assembly and a second filter screen assembly; the first filter screen assembly and the second filter screen assembly are arranged at the middle part of the liquid separation cavity in a spaced manner, and divide the liquid separation cavity into three relatively independent cavities; the first filter screen assembly is close to the top of the cylinder and forms an exhaust cavity with the top of the cylinder, and the exhaust port is arranged on the cylinder and communicates with the exhaust cavity; the first filter screen assembly, the second filter screen assembly and the cylinder form an inlet cavity, and the inlet port is arranged on the cylinder and communicates with the inlet cavity.

[0005] In some embodiments, the exhaust port is arranged at the top end of the cylinder.

[0006] In some embodiments, the second filter screen assembly and the bottom of the cylinder form a liquid storage cavity, an oil return pipe is arranged in the liquid storage cavity, a first end of the oil return pipe passes through the cylinder and communicates with the exhaust port, a second end of the oil return pipe passes through the cylinder and communicates with the outside of the cylinder; an oil return hole is arranged on the oil return pipe, and the oil return pipe and the liquid storage cavity are communicated through the oil return hole.

[0007] In some embodiments, the second end of the oil return pipe is arranged at the bottom end of the cylinder, and the oil return hole is arranged close to the second end of the oil return pipe.

[0008] In some embodiments, the filter screen assembly comprises a filter screen support, a screen mesh, and a compression ring, the compression ring fixing the screen mesh on the filter screen support.

[0009] In some embodiments, a threaded hole is arranged on the filter screen support, the threaded hole passing through the medium.

[0010] In some embodiments, a partition is arranged in the liquid storage cavity, and the oil return pipe passes through the partition.

[0011] In some embodiments, the cylinder comprises a cylinder cover, a cylinder body, and a cylinder bottom, the cylinder cover and the cylinder bottom being connected to the cylinder body respectively to form the cylinder.

[0012] According to another aspect of the present application, embodiments of the present application provide a compressor assembly comprising the above-mentioned distributor and a compressor, the compressor comprising a suction end, the suction end being connected to the second end of the oil return pipe.

[0013] According to another aspect of the present application, embodiments of the present application provide an air conditioner, the air conditioner comprising the above-mentioned compressor assembly.

[0014] The present application sets the filter screen assembly, sets the first filter screen assembly and the second filter screen assembly on both sides of the air inlet of the distributor respectively, fully utilizes the gas-liquid separation effect of the filter screen assembly, and effectively separates the gas-liquid mixed medium introduced by the air inlet. The air outlet is arranged on one side of the first filter screen assembly close to the top end of the cylinder, so that the air inlet and the air outlet are separated, effectively avoiding the gas-liquid mixed medium from being directly discharged by the air outlet after entering the distributor, and further avoiding the damage caused by excessive liquid medium sucked by the compressor. At the same time, the air outlet is arranged in the air discharge cavity, which can fully utilize the volume inside the distributor, improve the effective volume of gas-liquid separation, and make the effective space of the distributor for storing medium larger.

[0015] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, and to implement the content of the description, the following will be described in detail with reference to the preferred embodiments of the present application and in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view of the distributor of an embodiment of the present application;

[0017] Figure 2 is a top view of the distributor of an embodiment of the present application;

[0018] Figure 3 is a sectional view of A-A in Figure 2

[0019] Figure 4 is a front view of the distributor of another embodiment of the present application; ​

[0020] Figure 5 This is a top view of a liquid dispenser according to another embodiment of the present invention;

[0021] Figure 6 yes Figure 5 Sectional view of BB;

[0022] Figure 7 This is a structural cross-sectional view of the compressor assembly according to an embodiment of the present invention;

[0023] Figure 8 This is a structural cross-sectional view of a compressor assembly according to another embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the partition structure according to an embodiment of the present invention;

[0025] Figure 10 This is a top view of the partition according to an embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of the filter assembly according to an embodiment of the present invention;

[0027] Figure 12 This is a schematic diagram of the structure of the screen according to an embodiment of the present invention;

[0028] Figure 13 This is a top view of the screen according to an embodiment of the present invention;

[0029] Figure 14 This is a schematic diagram of the pressure ring structure according to an embodiment of the present invention;

[0030] Figure 15 This is a top view of the pressure ring according to an embodiment of the present invention;

[0031] Figure 16 This is a schematic diagram of the structure of the filter support according to an embodiment of the present invention;

[0032] Figure 17 yes Figure 16 A sectional view of CC.

[0033] in:

[0034] 1. First filter assembly; 2. Second filter assembly; 21. Filter support; 211. Rotary hole; 22. Screen; 23. Pressure ring; 3. Cylinder; 31. Cylinder cover; 32. Cylinder body; 33. Cylinder bottom; 4. Exhaust port; 5. Air inlet; 6. Oil return pipe; 61. Oil return hole; 62. Steel pipe; 7. Partition plate; 71. Oil passage hole; 72. Collection tank; 8. Distributor; 81. Distributor pressure plate; 82. Rubber pad; 9. Compressor; 91. Suction end; 92. Terminal cover; 93. Rubber plug; 94. Upper cover assembly; 95. Pump body assembly; 96. Lower cover; 97. Refrigeration oil. Detailed Implementation

[0035] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0036] In the description of this invention, it should be clearly stated that the terms "vertical", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal", etc., which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] This embodiment provides a liquid dispenser, such as... Figures 1 to 17 As shown, it includes a first filter assembly 1, a second filter assembly 2, a cylinder 3, an exhaust port 4, and an air inlet 5; a sealed liquid separation chamber is formed inside the cylinder 3, and the first filter assembly 1 and the second filter assembly 2 are spaced apart in the middle of the liquid separation chamber, dividing the liquid separation chamber into three relatively independent cavities; the first filter assembly 1 is close to the top of the cylinder 3 and forms an exhaust chamber with the top of the cylinder 3, and the exhaust port 4 is provided on the cylinder 3 and communicates with the exhaust chamber; the first filter assembly 1, the second filter assembly 2, and the cylinder 3 form an air inlet chamber, and the air inlet 5 is provided on the cylinder 3 and communicates with the air inlet chamber.

[0039] In this embodiment, the gas-liquid mixture enters the separator through the air inlet 5 for gas-liquid separation. The separated gaseous medium is discharged from the separator through the exhaust port 4, while the separated liquid medium is temporarily stored inside the separator. The first filter assembly 1 and the second filter assembly 2 are the main functional components for gas-liquid separation. The filter assemblies mainly utilize principles such as wire mesh separation, baffle separation, and gravity sedimentation to filter and separate the gas-liquid mixture, allowing the gaseous medium to pass through while intercepting the liquid medium and preventing it from passing through.

[0040] The first filter screen assembly 1 and the second filter screen assembly 2 are arranged in the middle of the separation cavity, and the air inlet 5 is arranged on the cylinder 3 between the first filter screen assembly 1 and the second filter screen assembly 2 and communicates with the air inlet cavity, so that the gas-liquid mixed medium introduced by the air inlet 5 can enter the air inlet cavity and directly contact the first filter screen assembly 1 and the second filter screen assembly 2, so that the liquid medium is more easily attached to the filter part of the filter screen assembly and the surface thereof, and a good gas-liquid separation effect is achieved. Alternatively, the filter part of the filter screen assembly can be composed of a screen and a compression ring. The first filter screen assembly 1 and the second filter screen assembly 2 are arranged at intervals and form an air inlet cavity with the cylinder 3, and the gas-liquid mixed medium introduced by the air inlet 5 all enters the air inlet cavity, which can ensure that all the mixture passes through the gas-liquid separation process before leaving the air inlet cavity, and the phenomenon that the gas-liquid mixture directly leaves the air outlet 4 without passing through the gas-liquid separation process does not occur, thereby ensuring the effectiveness of the gas-liquid separation of the separator.

[0041] The air outlet 4 communicates with the air outlet cavity formed by the first filter screen assembly 1 and the top of the cylinder 3, and can discharge the gaseous medium after gas-liquid separation out of the separator. Alternatively, as shown in Figures 1 to 6 , the air outlet 4 is arranged to communicate with the air outlet cavity at a relatively high position, so that most of the volume in the cylinder 3 can be fully utilized for the gas-liquid separation process or storage of the medium, thereby improving the effective volume of the separator. Alternatively, as shown in Figure 1 , the air outlet 4 is arranged at the top end of the cylinder 3, so that the volume of the cylinder 3 can be maximally utilized, thereby maximizing the effective volume of the separator. As shown in Figure 4 , when the air outlet 4 is arranged at a position relatively away from the top end of the cylinder 3 and close to the first filter screen assembly 1, although the effective volume cannot be maximized, the flow path of the gaseous medium can be reduced, the flow resistance can be reduced, and the gaseous medium passing through the first filter screen assembly 1 can be easily discharged out of the separator through the air outlet 4.

[0042] The air inlet 5 and the air outlet 4 are arranged to communicate with the air inlet cavity and the air outlet cavity, respectively, so that the air inlet 5 and the air outlet 4 are separated by the first filter screen assembly 1, which can ensure that the gas-liquid mixed medium introduced by the air inlet 5 passes through the filtering and separating process of the first filter screen assembly 1 before being discharged out of the separator, thereby avoiding the gas-liquid mixed medium being directly discharged out of the air outlet 4, which results in too much liquid medium in the discharged medium.

[0043] As a specific embodiment, as shown in Figures 1 to 6As shown, the second filter screen assembly 2 forms a liquid storage cavity with the bottom of the cylinder 3. After the gas-liquid mixed medium is introduced into the gas inlet cavity from the gas inlet 5, the liquid medium is separated by the filtering and separating action of the first filter screen assembly 1 and the second filter screen assembly 2 and adheres to the filter screen assemblies. The liquid medium flows downward under the action of gravity and finally enters the liquid storage cavity. The oil return pipe 6 is provided in the liquid storage cavity. The first end of the oil return pipe 6 penetrates through the cylinder 3 and communicates with the gas outlet 4. The second end of the oil return pipe 6 penetrates through the cylinder 3 and communicates with the outside of the cylinder 3, forming a complete flow path. The medium discharged from the gas outlet 4 enters the oil return pipe 6 from the first end and is discharged from the oil return pipe 6 from the second end, and then is discharged out of the distributor. The first end of the oil return pipe 6 penetrates out of the cylinder 3 and communicates with the gas outlet 4 outside the cylinder 3, avoiding the oil return pipe 6 penetrating through the first filter screen assembly 1 and the second filter screen assembly 2 inside the cylinder 3 to communicate with the gas outlet 4. Such a setting can maintain the integrity of the first filter screen assembly 1 and the second filter screen assembly 2, so that they can play a more effective filtering and separating role. The connecting pipeline is arranged outside and does not occupy the space inside the gas inlet cavity, and can also ensure that the effective volume of the gas inlet cavity is not reduced. Optionally, the gas outlet 4 and the first end of the oil return pipe 6 can be connected by a steel pipe 62. Indirect connection through the steel pipe 62 can ensure the reliability of the flow path. The oil return pipe 6 is provided with an oil return hole 61, which communicates the oil return pipe 6 with the liquid storage cavity. Optionally, the second end of the oil return pipe 6 is arranged at the bottom end of the cylinder 3, and the oil return hole 61 is arranged close to the second end of the oil return pipe 6. When the storage of the liquid medium in the liquid storage cavity reaches a certain amount, the liquid level height exceeds the height of the oil return hole 61, the liquid medium will flow back to the oil return pipe 6 from the oil return hole 61, and will be discharged together with the gaseous medium, so that too much liquid medium is not stored in the liquid storage cavity, avoiding the influence caused by the insufficient amount of medium participating in the system circulation. Optionally, the number of oil return holes 61 can be one, two or more as needed. Arranging two or more oil return holes 61 can avoid the situation of slow or poor oil return.

[0044] As a specific embodiment, as shown in Figures 1 to 10 A partition plate 7 is arranged in the liquid storage cavity, and the oil return pipe 6 penetrates through the partition plate 7. The partition plate 7 is fixed on the inner wall of the liquid storage cavity, and the oil return pipe 6 can be fixed by the partition plate 7. Optionally, the partition plate 7 is provided with an oil passage hole 71. After being filtered and separated by the first filter screen assembly 1 and the second filter screen assembly 2, the liquid medium drops onto the partition plate 7 of the liquid storage cavity under the action of gravity, and then flows into the space below the partition plate 7 through the oil passage hole 71 for temporary storage. Optionally, the partition plate 7 is provided with a collection groove 72. The collection groove 72 can collect the liquid medium. The collected liquid medium is settled by gravity, and a small part of impurities is retained in the collection groove 72. The pure liquid medium after settlement will overflow out of the collection groove 72 and flow into the space below the partition plate 7 through the oil passage hole 71.

[0045] As a specific embodiment, as shown in Figures 11 to 17 The filter screen assembly includes a filter screen support 21, a screen 22, and a compression ring 23 that fixes the screen 22 on the filter screen support 21. The screen 22 is the main component of the filter screen assembly that plays a separating and filtering role. The screen 22 mainly uses the wire mesh separation principle to separate the gas-liquid mixed medium. The screen 22 has wire meshes and mesh holes. Because the particle sizes of the gaseous medium and the liquid medium are different, when the gas-liquid mixed medium passes through the screen 22, the gaseous medium with a smaller particle size can directly pass through the mesh holes; the liquid medium with a larger particle size cannot pass through the mesh holes and is blocked by the wire meshes and adheres to the surface of the wire meshes. The wire mesh separation of the screen 22 separates the gaseous medium and the liquid medium. Although the screen 22 can filter and separate most of the liquid medium with a larger particle size, the mesh hole size of the screen 22 is fixed, and a small part of the liquid medium with a smaller particle size cannot be blocked by the mesh holes. Alternatively, the filter screen support 21 is provided with a spiral hole 211 through which the small-particle liquid medium passes. Further, the spiral hole 211 has a flow guide structure. The gas-liquid mixed medium passing through the screen 22 is further filtered and separated by using the principle of deflection separation. When the small-particle liquid medium passing through the mesh holes flows with the gaseous medium through the spiral hole 211, because the inertia of the small-particle liquid medium is greater than that of the gaseous medium, the gaseous medium changes the direction of movement and deflects through the spiral hole 211 when it encounters the blocking of the flow guide structure of the spiral hole 211; while the small-particle liquid medium with a larger inertia does not immediately change direction when it encounters the blocking of the flow guide structure of the spiral hole 211, and will hit the flow guide structure of the spiral hole and adhere to the flow guide structure. Under the action of gravity sedimentation, the small-particle liquid medium adhering to the flow guide structure of the spiral hole is sedimented and gathered together to form droplets, which finally drop into the liquid storage cavity. After the filtering and separation of the screen 22 and the filter screen support 21, the proportion of the liquid medium in the gas-liquid mixed medium that finally leaves the filter screen assembly is smaller, and the gas-liquid separation effect of the liquid separator is improved.

[0046] As a specific embodiment, as shown in Figure 3 and Figure 6 The cylinder 3 includes a cylinder cover 31, a cylinder body 32, and a cylinder bottom 33, and the cylinder cover 31 and the cylinder bottom 33 are connected with the cylinder body 32 to form the cylinder 3. The cylinder 3 is assembled by three components, which facilitates the installation, replacement, or disassembly of the first filter screen assembly 1, the second filter screen assembly 2, the oil return pipe 6, the partition plate 7, and other components in the liquid separator. Alternatively, the exhaust port 4 can be arranged on the cylinder cover 31 or the cylinder body 32. As shown in Figures 1 to 3 When the exhaust port 4 is arranged at the top end of the cylinder cover 31, the effective volume available inside the liquid separator is the largest.

[0047] The embodiment provides a compressor assembly, as shown in Figure 7 and Figure 8As shown, the compressor assembly includes a distributor 8 and a compressor 9, the compressor 9 including a suction end 91 connected to the second end of the oil return pipe 6. Optionally, the compressor assembly includes a distributor plate 81, a rubber pad 82, the compressor 9 further including a terminal post cover 92, a rubber plug 93, an upper cover assembly 94, a pump body assembly 95, a lower cover 96, and refrigeration oil 97. The distributor 8 can be any of the distributors described above.

[0048] The present application also provides an air conditioner, which includes the compressor assembly described above.

[0049] The above description is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application. It is easy for those skilled in the art to understand that the above advantageous technical features can be freely combined and superimposed without conflict.

Claims

1. A liquid separator, characterized by The filter assembly, the cylinder, the exhaust port and the air inlet port, the cylinder is formed with a liquid separation cavity; The filter assembly comprises a first filter assembly and a second filter assembly; The first filter assembly and the second filter assembly are arranged at the middle part of the liquid separation cavity and divide the liquid separation cavity into three relatively independent cavities; The first filter assembly is close to the top of the cylinder and forms an exhaust cavity with the top of the cylinder, and the exhaust port is arranged on the cylinder and communicates with the exhaust cavity; The first filter assembly, the second filter assembly and the cylinder form an air inlet cavity, and the air inlet port is arranged on the cylinder and communicates with the air inlet cavity; The second filter assembly forms a liquid storage cavity with the bottom of the cylinder, and an oil return pipe is arranged in the liquid storage cavity, a first end of the oil return pipe passes through the cylinder and communicates with the exhaust port, a second end of the oil return pipe passes through the cylinder and communicates with the outside of the cylinder, and an oil return hole is arranged on the oil return pipe to communicate the oil return pipe and the liquid storage cavity; When the liquid level of the liquid medium in the liquid storage cavity exceeds the height of the oil return hole, the liquid medium flows back to the oil return pipe from the oil return hole and is discharged from the liquid separator together with the gaseous medium.

2. The liquid distributor of claim 1, wherein The exhaust port is arranged at the top end of the cylinder.

3. The liquid distributor of claim 1, wherein The second end of the oil return pipe is arranged at the bottom end of the cylinder, and the oil return hole is arranged close to the second end of the oil return pipe.

4. The liquid distributor of claim 3, wherein The filter assembly comprises a filter support, a screen and a compression ring, and the compression ring fixes the screen on the filter support.

5. The liquid distributor of claim 4, wherein A threaded hole is arranged on the filter support, and the threaded hole passes through the medium.

6. The liquid dispenser of claim 5, wherein, A partition plate is arranged in the liquid storage cavity, and the oil return pipe passes through the partition plate.

7. The liquid distributor of claim 6, wherein The cylinder comprises a cylinder cover, a cylinder body and a cylinder bottom, the cylinder cover and the cylinder bottom are connected with the cylinder body respectively to form the cylinder.

8. A compressor assembly characterized by, The compressor assembly comprises the liquid separator of any one of claims 1-7 and a compressor, and the compressor comprises a suction end connected with the second end of the oil return pipe.

9. An air conditioner characterized by comprising: The air conditioner comprises the compressor assembly of claim 8.

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