A distributor, compressor and heat exchange system

Abstract

This invention provides a liquid distributor, a compressor, and a heat exchange system. The liquid distributor includes an inner shell located within a liquid distribution chamber. The upper end of the inner shell is open and located near the inlet port of the inlet pipe section, connecting to the inner wall of the outer shell. The lower end of the inner shell is located near the bottom of the outer shell and sleeved onto the inlet pipe section, thus dividing the liquid distribution chamber into an inner cavity and an outer cavity. The upper open end is provided with a guide plate and a through port. The through port penetrates the peripheral wall of the inner shell and is located vertically below the inlet port. The guide plate is inclined downwards from the peripheral wall of the inner shell towards the inlet pipe section. This invention's liquid distributor with a guide plate can shorten the flow path of the medium, thereby improving the utilization rate and efficiency of the heat exchange medium. It can also further impinge on gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the heat exchange system.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separation technology, and in particular to a liquid separator, a compressor having the liquid separator, and a heat exchange system having the compressor. Background Technology

[0002] A compressor is a fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of a heat exchange system and periodically draws in, compresses, and exhausts gas during operation.

[0003] A liquid separator used on a compressor is also known as a gas-liquid separator or liquid receiver. Its main function is to separate the gas-liquid mixture from the heat exchange system to ensure that the compressor can draw in gaseous media and operate normally. This prevents liquid media from entering the compressor pump body and causing liquid slugging, which would shorten the compressor's lifespan and be detrimental to the compressor's stable and long-term operation.

[0004] See Figure 1 The existing liquid separator typically consists of an intake pipe 11, a housing 12, a filter assembly 13, and an exhaust pipe. The intake pipe 11 is located at the top of the housing 12. The filter assembly 13 is located in the inner cavity of the housing 12 and divides the inner cavity of the housing 12 into a connected air inlet chamber 15 and a liquid separator 16. The air inlet chamber 15 is located at the upper part of the housing 12 and is connected to the intake pipe 11. The exhaust pipe is located at the bottom of the housing 12, and the air inlet section 14 of the exhaust pipe extends toward the filter assembly 13 and is inserted into the interior of the liquid separator 16. Thus, the gas-liquid mixture in the heat exchange system flows from the intake pipe 11 into the air inlet chamber 15 of the housing 12, and after passing through the filter assembly 13, flows into the liquid separator 16 of the housing 12 for gas-liquid separation. The separated gaseous medium enters the exhaust pipe through the air inlet section 14 and is sent to the pump body of the compressor, while the separated liquid medium is stored at the bottom of the liquid separator 16.

[0005] To prevent an increase in the liquid medium stored in the liquid distribution chamber 16 from entering the exhaust pipe from the air inlet section 14 of the exhaust pipe and being sent to the compressor pump body, thus causing a risk of liquid slugging, the existing liquid distributor sets the air inlet section 14 of the exhaust pipe away from the bottom of the liquid distribution chamber 16 and close to the filter assembly 13, so that the air inlet port 141 of the air inlet section 14 is away from the bottom of the liquid distribution chamber 16 and close to the filter assembly 13. However, the gas-liquid mixture flowing into the liquid distribution chamber 16 of the housing 12 after passing through the filter assembly 13 has a downward flow inertia, causing the gas-liquid mixture flowing into the liquid distribution chamber 16 of the housing 12 after passing through the filter assembly 13 to flow away from the filter assembly 13 towards the bottom of the liquid distribution chamber 16. Since the air inlet port 141 of the exhaust pipe inlet section 14 is far from the bottom of the liquid distribution chamber 16 and close to the filter assembly 13, the separated gaseous medium needs to float upwards and travel a longer flow path to reach the air inlet port 141 of the exhaust pipe inlet section 14, thereby reducing the utilization rate and efficiency of the heat exchange medium. Summary of the Invention

[0006] To achieve the primary objective of this invention, a liquid separator equipped with a guide plate is provided, which can shorten the flow path of the medium, thereby improving the utilization rate and efficiency of the heat exchange medium, and further impinge gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the operating efficiency of the heat exchange system.

[0007] To achieve the second objective of this utility model, this utility model provides a compressor having the above-mentioned liquid separator.

[0008] To achieve the third objective of this utility model, this utility model provides a heat exchange system having the above-mentioned compressor.

[0009] To achieve the first objective of this utility model, this utility model provides a liquid separator, including an air intake pipe, a housing, a filter assembly, and an exhaust pipe. The air intake pipe is disposed at the top of the housing, and the filter assembly is disposed inside the housing, dividing the inner cavity of the housing into a connected air inlet chamber and a liquid separator. The air inlet chamber is located at the upper part of the housing and is connected to the air intake pipe. The exhaust pipe is disposed at the bottom of the housing, and the air inlet section of the exhaust pipe extends toward the filter assembly and is inserted into the liquid separator. The liquid separator also includes an inner shell located inside the liquid separator. The upper end of the inner shell is open and located near the air inlet port of the air inlet section and is connected to the inner wall of the housing. The lower end of the inner shell is located near the bottom of the housing and is sleeved on the air inlet section to divide the liquid separator into an inner cavity and an outer cavity. The upper end of the open shell is provided with a guide plate and a through port. The through port is disposed through the peripheral wall of the inner shell and is located below the air inlet port in the vertical direction. The guide plate is inclined downward from the peripheral wall of the inner shell toward the air inlet section.

[0010] As can be seen from the above scheme, during the gas-liquid separation process of the present invention's separator, the gas-liquid mixture in the heat exchange system flows from the separator's suction pipe into the air inlet chamber of the outer shell. After being filtered by the filter assembly, it flows into the inner cavity formed between the filter assembly, the inner shell, and the air inlet section of the exhaust pipe. Because the upper end of the inner shell is open and equipped with a guide plate, which is inclined downwards from the peripheral wall of the inner shell towards the air inlet section, the gas-liquid mixture flowing into the inner cavity from the filter assembly first impacts the upper end of the inner shell. On the guide plate at the opening, the gas-liquid mixture undergoes a first gas-liquid separation. The guide plate then directs the separated medium to the inlet section of the exhaust pipe, causing it to impact the outer wall of the inlet section again for a second gas-liquid separation. The separated gaseous medium enters the exhaust pipe through the inlet port of the inlet section and is sent to the compressor pump body, while the separated liquid medium is stored at the bottom of the inner cavity formed between the filter assembly, the inner shell, and the inlet section of the exhaust pipe.

[0011] When operating under heavy-duty conditions (large heat exchange medium injection volume and large proportion of liquid medium), the liquid medium stored in the inner cavity formed between the filter screen assembly, inner shell, and air inlet section of the exhaust pipe of this utility model liquid distributor is excessive. Since the through port of this utility model is set to penetrate the peripheral wall of the inner shell to connect the inner cavity and the outer cavity, and the through port is located below the air inlet port of the air inlet section in the vertical direction, the liquid medium stored in the inner cavity will overflow from the through port into the outer cavity formed between the outer shell and the inner shell for storage. This avoids the liquid medium overflowing into the air inlet port of the air inlet section and entering the pump body of the compressor, causing liquid slugging. This makes the liquid distributor of this utility model more widely applicable.

[0012] Therefore, the liquid separator of this utility model has a guide plate at the upper opening of the inner shell. On the one hand, it can cause the gas-liquid mixture entering the inner cavity to undergo two impacts for gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the heat exchange system. On the other hand, it can also prevent the gas-liquid mixture flowing from the filter assembly into the inner cavity from flowing downward due to the inertia. Under the guidance of the guide plate, the medium is made to gather in the air inlet section, reducing the diffusion range of the medium, thereby shortening the flow path of the medium, and thus improving the utilization rate and efficiency of the heat exchange medium.

[0013] Therefore, the liquid separator with guide plate of this utility model can shorten the flow path of the medium, thereby improving the utilization rate and efficiency of the heat exchange medium, and can further impinge gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the operating efficiency of the heat exchange system.

[0014] A further option is to have at least two guide plates arranged circumferentially on the inner shell; and / or to have at least two through openings arranged circumferentially on the inner shell.

[0015] A further proposed solution is to have a through-hole located directly below a guide plate in the vertical direction.

[0016] A further option is that the peripheral wall of the inner shell is a straight wall in the vertical direction; or, the peripheral wall of the inner shell is a wavy wall in the vertical direction; or, the circumference of the inner shell gradually decreases from the top to the bottom in the vertical direction.

[0017] A further option is to provide an outward-flaring ring on the outer periphery of the upper opening, which abuts against the inner wall of the outer shell; and / or, to provide a convex sleeve ring at the lower end of the inner shell, which sleeves onto the air inlet pipe section.

[0018] A further option is that a first oil return port is provided through the peripheral wall of the air intake pipe section, and the first oil return port is connected to the inner cavity; and / or, a second oil return port is provided through the peripheral wall of the air intake pipe section, and the second oil return port is connected to the outer cavity.

[0019] A further embodiment is that the filter assembly includes a filter screen and a support frame. The support frame is located inside the housing and divides the inner cavity of the housing into an air inlet chamber and a liquid distribution chamber. The middle part of the support frame protrudes towards the air intake pipe and has a raised portion. The outer peripheral surface of the raised portion is a curved surface that curves downward around its periphery. The support frame has multiple guide holes that are arranged circumferentially around the outer periphery of the raised portion. The filter screen is placed above the support frame and covers the raised portion and the guide holes.

[0020] A further embodiment is that each guide hole has a downwardly extending guide plate on the peripheral wall near the protrusion, the horizontal projection of the guide plate is located in the corresponding guide hole, and the horizontal projection area of ​​the guide plate is smaller than the horizontal projection area of ​​the corresponding guide hole; and / or, the peripheral wall of the outer shell is provided with a first protruding ring and a second protruding ring, the first protruding ring and the second protruding ring are arranged side by side in the vertical direction and form a limiting ring cavity, the outer periphery of the support frame is restricted in the limiting ring cavity; and / or, the outer periphery of the filter screen is provided with a mounting ring portion, the outer periphery of the support frame is provided with a mounting ring groove, the mounting ring portion is located in the mounting ring groove, and the outer peripheral wall of the port of the mounting ring groove is provided with a limiting ring wall, the limiting ring wall extending obliquely toward the mounting ring portion.

[0021] To achieve the second objective of this utility model, this utility model provides a compressor, including a distributor, wherein the distributor is the distributor described above.

[0022] To achieve the second objective of this utility model, this utility model provides a heat exchange system, including a compressor, wherein the compressor is the compressor described above. Attached Figure Description

[0023] Figure 1 This is a partial structural cross-sectional view of an existing liquid dispenser.

[0024] Figure 2 This is a cross-sectional view of the first embodiment of the liquid separator of this utility model.

[0025] Figure 3 This is a first partial structural cross-sectional view of the first embodiment of the liquid separator of this utility model.

[0026] Figure 4 This is a second partial structural cross-sectional view of the first embodiment of the liquid separator of this utility model.

[0027] Figure 5 This is a schematic diagram of the first state of the inner shell unfolded in the first embodiment of the liquid separator of this utility model.

[0028] Figure 6 This is a schematic diagram of the second state of the inner shell unfolded in the first embodiment of the liquid separator of this utility model.

[0029] Figure 7 This is a cross-sectional view of the inner shell in the first embodiment of the liquid separator of this utility model.

[0030] Figure 8 This is a cross-sectional view of the filter assembly and the outer shell in the first embodiment of the liquid separator of this utility model.

[0031] Figure 9 yes Figure 8 Enlarged view at point A.

[0032] Figure 10 This is an exploded view of the filter assembly in the first embodiment of the liquid separator of this utility model.

[0033] Figure 11 This is a schematic diagram of the working state of the first embodiment of the liquid separator of this utility model.

[0034] Figure 12 This is a cross-sectional view of the inner shell in the second embodiment of the liquid separator of this utility model.

[0035] Figure 13 This is a cross-sectional view of the inner shell in the third embodiment of the liquid separator of this utility model.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0041] First embodiment of the liquid separator:

[0042] See Figures 2 to 10This embodiment discloses a liquid separator 20, including an air intake pipe 21, a housing 22, a filter assembly 23, and an exhaust pipe 24. The air intake pipe 21 is disposed at the top of the housing 22. The filter assembly 23 is disposed inside the housing 22 and divides the inner cavity of the housing 22 into a connected air intake chamber 26 and a liquid separation chamber 27. The air intake chamber 26 is located at the upper part of the housing 22 and is connected to the air intake pipe 21. The exhaust pipe 24 is disposed at the bottom of the housing 22, and the air inlet section 241 of the exhaust pipe 24 extends toward the filter assembly 23 and is inserted into the liquid separation chamber 27.

[0043] Furthermore, the liquid dispenser 20 in this embodiment also includes an inner shell 25 located within the liquid dispensing chamber 27. The upper opening 251 of the inner shell 25 is located near the air inlet port 2411 of the air inlet pipe section 241 and is connected to the inner wall of the outer shell 22. The lower end of the inner shell 25 is located near the bottom of the outer shell 22 and is sleeved on the air inlet pipe section 241 to divide the liquid dispensing chamber 27 into an inner cavity 271 and an outer cavity 272. The upper opening 251 of the inner shell 25 is provided with a guide plate 253 and a through port 252. The through port 252 is provided through the peripheral wall of the inner shell 25 to connect the inner cavity 271 and the outer cavity 272. The through port 252 is located below the air inlet port 2411 of the air inlet pipe section 241 in the vertical direction. The guide plate 253 is inclined downward from the peripheral wall of the inner shell 25 toward the air inlet pipe section 241.

[0044] See Figure 11 In this embodiment, during the gas-liquid separation process, the gas-liquid mixture in the heat exchange system flows from the suction pipe 21 of the separator 20 into the air inlet chamber 26 of the outer shell 22. After being filtered by the filter assembly 23, it flows into the inner cavity 271 formed between the filter assembly 23, the inner shell 25, and the air inlet section 241 of the exhaust pipe 24. Since the upper opening 251 of the inner shell 25 is provided with a guide plate 253, which is inclined downward from the peripheral wall of the inner shell 25 towards the air inlet section 241, the gas-liquid mixture flowing from the filter assembly 23 into the inner cavity 271 first impacts the upper opening of the inner shell 25. The gas-liquid mixture is separated once by the guide plate 253 at the port 251. Then, the guide plate 253 guides the gas-liquid mixture to the inlet section 241 of the exhaust pipe 24, so that the gas-liquid mixture is separated once again and impacts the outer peripheral wall of the inlet section 241, thereby performing a second gas-liquid separation. The separated gaseous medium enters the exhaust pipe 24 through the inlet port 2411 of the inlet section 241 and is sent to the pump body of the compressor. The separated liquid medium is stored at the bottom of the inner cavity 271 formed between the filter assembly 23, the inner shell 25 and the inlet section 241 of the exhaust pipe 24.

[0045] When operating under heavy working conditions (large heat exchange medium injection volume and large proportion of liquid medium), the liquid medium stored in the inner cavity 271 formed between the filter assembly 23, inner shell 25 and air inlet pipe section 241 of the exhaust pipe 24 of the liquid distributor 20 in this embodiment is too large. Since the through port 252 of this embodiment is set to penetrate the peripheral wall of the inner shell 25 to connect the inner cavity 271 and the outer cavity 272, and the through port 252 is located below the air inlet port 2411 of the air inlet pipe section 241 in the vertical direction, the liquid medium stored in the inner cavity 271 will overflow from the through port 252 into the outer cavity 272 formed between the outer shell 22 and the inner shell 25 for storage. This avoids the liquid medium overflowing into the air inlet port 2411 of the air inlet pipe section 241 and entering the pump body of the compressor, which would cause liquid slugging. This makes the liquid distributor 20 of this embodiment more applicable.

[0046] Therefore, in this embodiment, the distributor 20 is provided with a guide plate 253 at the upper opening 251 of the inner shell 25. On the one hand, it can cause the gas-liquid mixture entering the inner cavity 271 to form two impacts for gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the operating efficiency of the heat exchange system. On the other hand, it can also prevent the gas-liquid mixture flowing from the filter assembly 23 into the inner cavity 271 from flowing downward due to the inertia of the flow. Under the guidance of the guide plate 253, the medium is made to gather towards the air inlet pipe section 241, reducing the diffusion range of the medium, thereby shortening the flow path of the medium, and thus improving the utilization rate and efficiency of the heat exchange medium.

[0047] Therefore, the distributor 20 with guide plate 253 in this embodiment can shorten the flow path of the medium, thereby improving the utilization rate and efficiency of the heat exchange medium, and can further impinge gas-liquid separation, thereby improving the gas-liquid separation efficiency and effect, and improving the operating efficiency of the compressor and the operating efficiency of the heat exchange system.

[0048] To further improve the utilization rate and efficiency of the heat exchange medium, as well as the gas-liquid separation efficiency and effect, this embodiment has at least two guide plates 253, arranged circumferentially around the inner shell 25. Similarly, this embodiment has at least two through-holes 252, also arranged circumferentially around the inner shell 25. Preferably, in the vertical direction, one through-hole 252 is located directly below one guide plate 253.

[0049] Specifically, in this embodiment, an outwardly flared ring 254 is provided on the outer periphery of the upper opening 251 of the inner shell 25, and the outwardly flared ring 254 abuts against the inner cavity wall of the outer shell 22. In this embodiment, a convex sleeve ring 255 is provided at the lower end of the inner shell 25, and the convex sleeve ring 255 is sleeved on the air inlet pipe section 241. Furthermore, in this embodiment, the protruding sleeve 255 at the lower end of the inner shell 25 is fixedly sleeved on the air inlet pipe section 241 by welding, and the outwardly folded ring 254 of the upper opening 251 of the inner shell 25 abuts against the inner cavity wall of the outer shell 22, so that the inner shell 25 forms a trumpet shape with a fixed and constricted lower end and an outwardly flared upper end. This causes the upper opening 251 of the inner shell 25 to tend to expand outward. The outwardly folded ring 254 located at the upper end of the inner shell 25 is then firmly abutted against the inner cavity wall of the outer shell 22 by this expansion force. Because of the existence of this expansion force, the contact position between the outwardly folded ring 254 at the upper end of the inner shell 25 and the inner cavity wall of the outer shell 22 has a good sealing effect.

[0050] Combination Figures 5 to 7 In this embodiment, the inner shell 25 is a one-piece molded component. During the manufacturing process of the inner shell 25, an outwardly flared ring 254 is first pressed into the upper part of the steel plate 250, that is, in Figure 5 The double-dotted line position 2501 is used to press outward-facing ring 254, and then in Figure 5 Multiple "U"-shaped cuts were made at position 2502 of the single-dot dashed line, and then... Figure 5 The dotted line position 2503 is pressed at a certain angle to form a guide plate 253, and the notch at the "U"-shaped opening forms a through opening 252. Finally, the inner shell 25 of this embodiment is manufactured through welding and spinning processes. Figure 7 As shown.

[0051] To simplify the manufacturing process, the peripheral wall of the inner shell 25 in this embodiment is set as a straight wall in the vertical direction, thereby improving production efficiency.

[0052] Furthermore, in this embodiment, the peripheral wall of the air inlet pipe section 241 is provided with a first oil return port 2412, which is connected to the inner cavity 271. In addition, the peripheral wall of the air inlet pipe section 241 in this embodiment is provided with a second oil return port 2413, which is connected to the outer cavity 272.

[0053] Combination Figures 8 to 10In this embodiment, the filter assembly 23 includes a filter 231 and a support frame 232. The support frame 232 is located inside the housing 22 and divides the inner cavity of the housing 22 into an air inlet chamber 26 and a liquid distribution chamber 27. The middle part of the support frame 232 protrudes towards the air intake pipe 21 and has a protrusion 2321. The outer peripheral surface of the protrusion 2321 is a curved surface that curves downward around the periphery. The support frame 232 has multiple guide holes 2322 through it. The multiple guide holes 2322 are arranged in the circumferential direction on the outer periphery of the protrusion 2321. The filter 231 is disposed above the support frame 232 and covers the protrusion 2321 and the guide holes 2322.

[0054] Therefore, in this embodiment, the support frame 232 of the filter assembly 23 has a protrusion 2321 protruding towards the intake pipe 21 in the middle, and multiple guide holes 2322 are arranged around the outer periphery of the protrusion 2321 in the circumferential direction of the support frame 232. This can guide the gas-liquid mixture to flow toward the guide plate 253. On the one hand, this can improve the separation effect and efficiency of the gas-liquid mixture at the guide plate 253. On the other hand, it can reduce media disturbance, reduce intake resistance and pressure pulsation in the intake chamber 26, thereby improving compressor energy efficiency and reducing noise level.

[0055] To further reduce intake resistance and improve gas-liquid separation effect and efficiency, in this embodiment, each guide hole 2322 has a downwardly extending guide plate 2323 on the peripheral wall near the protrusion 2321. The horizontal projection of the guide plate 2323 is located within the corresponding guide hole 2322, and the horizontal projection area of ​​the guide plate 2323 is smaller than the horizontal projection area of ​​the corresponding guide hole 2322, so as to quickly guide the gas-liquid mixture flowing downward from the protrusion 2321 towards the guide plate 2323. Specifically, in this embodiment, the guiding surface 23231 of the guide plate 2323 near the guide hole 2322 can be formed as a plane, an arc surface, or a combination of a plane and an arc surface.

[0056] Preferably, a guide plate 2323 is correspondingly arranged with a guide plate 253 below it, so that the guide plate 2323 can accurately and quickly guide the gas-liquid mixed medium toward the guide plate 2323, further improving the separation effect and separation efficiency.

[0057] To improve the installation tightness and sealing of the support frame 232, in this embodiment, the peripheral wall of the outer shell 22 is provided with a first protruding ring 221 and a second protruding ring 222 protruding inward. The first protruding ring 221 and the second protruding ring 222 are arranged side by side in the vertical direction and form a limiting ring cavity, within which the outer periphery of the support frame 232 is confined. Specifically, in this embodiment, the second protruding ring 222 is located below the first protruding ring 221 in the vertical direction, and the outer folding ring 254 of the inner shell 25 is located below the second protruding ring 222 in the vertical direction. Thus, the second protruding ring 222 can restrict the upward movement tendency of the outer folding ring 254 of the inner shell 25, thereby positioning the upper end of the inner shell 25.

[0058] To improve the installation tightness of the filter screen 231 and the support frame 232, in this embodiment, the filter screen 231 is provided with an installation ring portion 2311 on its outer periphery, and the support frame 232 is provided with an installation ring groove 2324 on its outer periphery. The installation ring portion 2311 is located in the installation ring groove 2324, and the outer peripheral wall of the port of the installation ring groove 2324 is provided with a limiting ring wall 23241. The limiting ring wall 23241 extends obliquely toward the installation ring portion 2311 to securely limit the installation ring portion 2311 of the filter screen 231 within the installation ring groove 2324 of the support frame 232.

[0059] Second embodiment of the liquid separator:

[0060] As an explanation of the second embodiment of the liquid separator of this utility model, the following description only focuses on the differences from the first embodiment of the liquid separator.

[0061] See Figure 12 In this embodiment, the peripheral wall of the inner shell 28 is set as a wave wall in the vertical direction. The wave wall can make the inner cavity 271 form multiple cavities of varying sizes, which can play a noise reduction role similar to a muffler and achieve the purpose of noise reduction.

[0062] Third embodiment of the liquid separator:

[0063] As an explanation of the third embodiment of the liquid separator of this utility model, the following description only focuses on the differences from the first embodiment of the liquid separator.

[0064] See Figure 13 In this embodiment, the circumference of the inner shell 29 gradually decreases from the top to the bottom in the vertical direction, so that the inner cavity 271 is funnel-shaped with a wider top and a narrower bottom, thereby allowing the separated liquid medium to be quickly drained and stored at the bottom of the inner cavity 271.

[0065] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A liquid separator, comprising an air intake pipe, a housing, a filter assembly, and an exhaust pipe, wherein the air intake pipe is disposed at the top of the housing, the filter assembly is disposed within the housing and divides the inner cavity of the housing into a communicating air inlet chamber and a liquid separation chamber, the air inlet chamber is located at the upper part of the housing and communicates with the air intake pipe, and the exhaust pipe is disposed at the bottom of the housing, with the air inlet section of the exhaust pipe extending toward the filter assembly and inserted into the liquid separation chamber, characterized in that: The liquid separator also includes an inner shell located within the liquid separation chamber. The upper end of the inner shell is open and located near the air inlet port of the air inlet pipe section and connected to the inner wall of the outer shell. The lower end of the inner shell is located near the bottom of the outer shell and is sleeved on the air inlet pipe section to divide the liquid separation chamber into an inner cavity and an outer cavity. The upper end is provided with a guide plate and a through port. The through port is located through the peripheral wall of the inner shell and is located vertically below the air inlet port. The guide plate is inclined downward from the peripheral wall of the inner shell toward the air inlet pipe section.

2. The dispenser according to claim 1, characterized in that: The number of guide plates is at least two, and multiple guide plates are arranged in the circumferential direction of the inner shell; And / or, the number of the through openings is at least two, and the plurality of the through openings are arranged circumferentially in the inner shell.

3. The dispenser according to claim 2, characterized in that: In the vertical direction, one of the through openings is located directly below one of the guide plates.

4. The dispenser according to claim 1, characterized in that: The peripheral wall of the inner shell is arranged as a straight wall in the vertical direction; Alternatively, the peripheral wall of the inner shell may be provided as a wavy wall in the vertical direction; Alternatively, the circumference of the inner shell may be set to gradually decrease from the top to the bottom in the vertical direction.

5. The dispenser according to claim 1, characterized in that: An outward-folding ring is provided on the outer periphery of the upper opening, and the outward-folding ring abuts against the inner wall of the outer shell; And / or, the lower end of the inner shell is provided with a convex sleeve ring, which is sleeved on the air inlet pipe section.

6. The dispenser according to claim 1, characterized in that: The circumferential wall of the air inlet pipe section is provided with a first oil return port, which is connected to the inner cavity. And / or, a second oil return port is provided through the peripheral wall of the air inlet pipe section, and the second oil return port is connected to the outer cavity.

7. The dispenser according to any one of claims 1 to 6, characterized in that: The filter assembly includes a filter screen and a support frame. The support frame is located inside the housing and divides the inner cavity of the housing into the air inlet chamber and the liquid distribution chamber. The middle part of the support frame protrudes towards the air intake pipe and has a protrusion. The outer peripheral surface of the protrusion is a curved surface that curves downward from the periphery. The support frame has multiple flow guide holes, which are arranged circumferentially around the outer periphery of the protrusion. The filter screen is disposed above the support frame and covers the protrusion and the flow guide holes.

8. The dispenser according to claim 7, characterized in that: Each of the flow guide holes has a downwardly extending flow guide plate on the peripheral wall near the protrusion. The horizontal projection of the flow guide plate is located in the corresponding flow guide hole, and the horizontal projection area of ​​the flow guide plate is smaller than the horizontal projection area of ​​the corresponding flow guide hole. And / or, the outer casing has a first protruding ring and a second protruding ring protruding inward on its peripheral wall. The first protruding ring and the second protruding ring are arranged side by side in the vertical direction and form a limiting ring cavity. The outer periphery of the support frame is restricted within the limiting ring cavity. And / or, the outer periphery of the filter screen is provided with an installation ring portion, the outer periphery of the support frame is provided with an installation ring groove, the installation ring portion is inserted into the installation ring groove, and the outer peripheral wall of the port of the installation ring groove is provided with a limiting ring wall, the limiting ring wall extending obliquely toward the installation ring portion.

9. A compressor, including a distributor, characterized in that: The dispenser is the dispenser described in any one of claims 1 to 8.

10. A heat exchange system, including a compressor, characterized in that: The compressor is the compressor described in claim 9.

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