Gas-water separation device and air compressor

Abstract

The invention provides an air-water separation device and an air compressor, the air-water separation device is integrated at the air outlet end of an intercooler and is arranged along the axial direction of the intercooler, and the air-water separation device comprises a cylindrical main body, a separation cylinder, a net cylinder and an end cover; wherein one end of the barrel-shaped main body serves as an air inlet end to be connected with an air outlet end of the intercooler, the other end of the barrel-shaped main body is sealed through the end cover, an air outlet is formed in the top or the side wall of the barrel-shaped main body, and a water outlet is formed in the bottom; the separation barrel is arranged in the barrel-shaped main body and close to the air inlet end, the separation barrel is provided with an airflow channel communicated with the air inlet end, and the caliber of the airflow channel is smaller than that of the air inlet end; and the net cylinder is arranged in the end cover and is provided with a through hole opposite to the airflow channel, and the net cylinder is further provided with a plurality of net holes communicated with the cylindrical main body. The whole gas-water separation device is ingenious in design, compact in structure, remarkable in gas-liquid separation effect and particularly suitable for working scenes with limited space.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and particularly to a gas-water separation device and an air compressor. Background Art

[0002] In the field of air compressors, an intercooler and a gas-water separator are two key functional components. The intercooler is usually used to reduce the temperature of compressed air (such as air), reduce the water vapor content in the gas through heat exchange, and thus preliminarily separate liquid water; while the gas-water separator further removes residual liquid water, oil droplets and solid particles from the gas through mechanical separation (such as centrifugal force, inertial collision or filtration) to ensure the gas cleanliness and operation stability of downstream equipment.

[0003] Currently, in the prior art, an intercooler and a gas-water separator are generally used as independent components, and the two are connected by pipelines to form a split structure. However, this traditional design has the following technical defects:

[0004] 1) The complexity of the pipeline layout increases significantly: additional connecting pipes, elbows, valves and support structures need to be designed, which increases the total length of the system pipeline, occupies more equipment space, and the increase in connection nodes leads to an increase in the number of sealing points, increasing the probability of gas or liquid leakage;

[0005] 2) The equipment cost and maintenance cost increase: two components and supporting pipelines need to be purchased separately, and compatibility matching (such as interface size, pressure resistance level) is required, resulting in an increase in material costs. Moreover, the split structure requires more labor for pipeline assembly and sealing detection, and when troubleshooting, two components need to be repaired separately, with low maintenance efficiency;

[0006] 3) In the split structure, the gas flowing through the long pipeline may affect the performance of the gas-water separator due to turbulence or pressure drop changes, resulting in an increase in the residual amount of liquid water. Summary of the Invention

[0007] The purpose of the present invention is to provide a gas-water separation device and an air compressor to at least solve one of the above problems brought by the existing split-type intercooler and gas-water separator.

[0008] To achieve the above purpose, the present invention provides a gas-water separation device, which is integrated at the air outlet end of the intercooler and arranged along the axial direction of the intercooler. The gas-water separation device includes a cylindrical main body, a partition cylinder, a mesh cylinder and an end cover; wherein,

[0009] One end of the cylindrical main body is used as the air inlet end and is connected to the air outlet end of the intercooler, and the other end is sealed by the end cover. An air outlet is provided at the top or side wall of the cylindrical main body, and a drain port is provided at the bottom.

[0010] The partition is arranged in the cylindrical body and close to the air inlet end, and has an air flow channel connected to the air inlet end, and the diameter of the air flow channel is smaller than the diameter of the air inlet end;

[0011] The mesh cylinder is arranged in the end cover and has a through hole arranged opposite to the air flow channel. The mesh cylinder also has a plurality of mesh holes communicated with the cylindrical body.

[0012] Optionally, the partition cylinder includes a cylinder body and a baffle, the baffle being arranged closer to the air inlet end than the cylinder body, the edges of the baffle being tightly connected to the inner wall of the cylindrical body, and the baffle having an opening connected to the cylinder body to form the air flow channel with the cylinder body.

[0013] Optionally, an annular limiting plate is formed on the inner wall of the cylindrical body, and the peripheral edges of the baffle are attached to and detachably connected to the annular limiting plate.

[0014] Optionally, the drain outlet includes a first drain outlet, and the first drain outlet is located on a side of the baffle away from the cylinder.

[0015] Optionally, the mesh cylinder includes a mesh cylinder body and a mesh partition, the mesh cylinder body is horizontally arranged inside the end cover and abuts against the end of the end cover, the through hole is provided at the center of the mesh cylinder body, the mesh partition is sleeved outside the mesh cylinder, and the mesh partition is located at the connection between the cylindrical body and the end cover to isolate the cylindrical body from the end cover.

[0016] Optionally, an annular groove is provided at the connection between the end cover and the cylindrical body, and the mesh partition is embedded in the annular groove.

[0017] Optionally, the mesh cylinder further includes a stainless steel wire mesh, which is filled in the end cover and wrapped outside the mesh cylinder.

[0018] Optionally, the drain outlet includes a second drain outlet, and the second drain outlet is located on a side of the mesh partition away from the end cover.

[0019] Optionally, the end cover is flange-connected to the cylindrical body.

[0020] Based on this, the present invention further provides an air compressor, comprising an intercooler and the air-water separation device as described above, wherein the air-water separation device is integrated at the air outlet end of the intercooler.

[0021] The present invention provides a gas-water separation device and an air compressor. By integrating the gas-water separation device at the air outlet end of the intercooler, the compressed air with liquid water discharged from the air outlet end of the intercooler enters the air flow channel of the partition cylinder through the air inlet end of the cylindrical main body. Since the diameter of the air flow channel is smaller than that of the air inlet end, the cross-sectional area of the air flow becomes smaller. According to the continuity equation and Bernoulli equation in fluid mechanics, when the cross-sectional area of the fluid flow becomes smaller, the flow velocity will increase. As a result, the air flow accelerated through the air flow channel rushes into the mesh cylinder with holes and collides with the end cover, reducing the flow velocity and changing the flow direction, thereby triggering inertial separation. The liquid droplets are separated due to inertia hitting the end cover or the edge of the holes. The coalesced liquid droplets slide down along the surface of the wire mesh by gravity to the bottom drain port, and the purified compressed air flows through the holes to the air outlet and is finally discharged from the air outlet. Compared with the existing split design, it has at least one of the following beneficial effects:

[0022] 1) The entire gas-water separation device is ingeniously designed and can be directly integrated at the air outlet end of the existing intercooler, with a compact structure, especially suitable for working scenarios with limited space;

[0023] 2) The present invention utilizes a triple gas-liquid separation mechanism of baffle interception + inertial collision + partition interception, with a significant gas-liquid separation effect and greatly improved gas-liquid separation efficiency;

[0024] 3) There is no need to separately design connecting pipes, elbows, valves and support structures, reducing the complexity of pipeline layout and occupying less equipment space;

[0025] 4) There is no need to separately purchase two components and the supporting pipelines, reducing the equipment cost and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0027] Figure 1 is an integrated schematic diagram of the gas-water separation device and the intercooler provided by an embodiment of the present invention;

[0028] Figure 2 is a front view of the gas-water separation device provided by an embodiment of the present invention;

[0029] Figure 3 is Figure 2 a cross-sectional view along the B-B direction;

[0030] Figure 4 is an exploded view of the gas-water separation device provided by an embodiment of the present invention.

[0031] Among them:

[0032] 100 - Gas - water separator; 110 - Cylindrical main body; 111 - Air outlet; 112 - Drainage port; 112a - First drainage port; 112b - Second drainage port; 113 - Annular limiting plate; 120 - Partition cylinder; 121 - Air flow channel; 122 - Cylindrical body; 123 - Baffle plate; 130 - Mesh cylinder; 131 - Meshed cylindrical body; 132 - Mesh partition; 133 - Stainless steel wire mesh; 140 - End cover; 200 - Inter - cooler. Detailed implementation manners

[0033] To make the objectives, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are in very simplified forms and not drawn to scale, only for the purpose of facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the accompanying drawings are often part of the actual structures. In particular, the emphasis that each accompanying drawing needs to show is different, and sometimes different scales are used.

[0034] As used in the present invention, the singular forms "a", "an" and "the" include plural objects unless the context clearly indicates otherwise. As used in the present invention, the term "or" is generally used in the sense of including "and / or" unless the context clearly indicates otherwise. As used in the present invention, the term "several" is generally used in the sense of including "at least one" unless the context clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in the sense of including "two or more" unless the context clearly indicates otherwise. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features.

[0035] Please refer to Figures 1 - 4 , this embodiment provides a gas - water separator 100, which is integrated at the air outlet end of the inter - cooler 200 and arranged along the axial direction of the inter - cooler 200. The gas - water separator 100 includes a cylindrical main body 110, a partition cylinder 120, a mesh cylinder 130 and an end cover 140; wherein,

[0036] The cylindrical main body 110, one end of which is used as the air inlet end and is connected to the air outlet end of the inter - cooler 200, and the other end is sealed by the end cover 140. An air outlet 111 is arranged on the top or side wall of the cylindrical main body 110, and a drainage port 112 is arranged at the bottom.

[0037] The partition 120 is disposed in the cylindrical body 110 and close to the air inlet end. The partition 120 has an air flow channel 121 connected to the air inlet end. The diameter of the air flow channel 121 is smaller than the diameter of the air inlet end.

[0038] The mesh cylinder 130 is disposed in the end cover 140 and has a through hole disposed opposite to the air flow channel 121 . The mesh cylinder 130 also has a plurality of mesh holes communicating with the cylindrical body 110 .

[0039] The working principle of the gas-water separation device 100 provided in this embodiment is as follows:

[0040] The compressed air containing liquid water discharged from the air outlet of the intercooler 200 enters the air flow channel 121 of the partition 120 through the air inlet end of the cylindrical body 110. Since the diameter of the air flow channel 121 is smaller than the diameter of the air inlet end, the cross-sectional area of ​​the air flow becomes smaller. According to the continuity equation and the Bernoulli equation in fluid mechanics, as the cross-sectional area of ​​the fluid flow becomes smaller, the flow rate will increase, so that the air flow accelerated by the air flow channel 121 rushes into the mesh cylinder 130 with mesh holes and collides with the end cover 140, reducing the flow rate and changing the flow direction, thereby triggering inertial separation. The droplets are separated due to inertial impact with the end cover 140 or the edge of the mesh, and the coalesced droplets slide down the surface of the wire mesh to the bottom drain port 112 by gravity. The purified compressed air flows through the mesh to the air outlet 111 and is finally discharged from the air outlet 111.

[0041] The entire gas-water separation device 100 is cleverly designed and can be directly integrated into the gas outlet of the existing intercooler 200. Compared with the existing split design, it has a compact structure and a significant gas-liquid separation effect, and is particularly suitable for working scenarios with limited space.

[0042] In this embodiment, the tubular body 110 is cylindrical, and its air inlet end can be connected to the air outlet end of the intercooler 200 by means of a flange connection, which is not limited in the present invention.

[0043] like Figures 3 - 4 As shown, the partition 120 includes a cylinder 122 and a baffle 123. The baffle 123 is arranged closer to the air inlet end than the cylinder 122. The edges of the baffle 123 are tightly connected to the inner wall of the cylindrical body 110. The baffle 123 has an opening connected to the cylinder 122 to form an air flow channel 121 with the cylinder 122.

[0044] In this embodiment, the cylinder 122 is cylindrical, and the baffle 123 is a circular baffle 123, which functions to block the airflow entering from the air inlet end of the cylindrical body 110. At the same time, the center of the baffle 123 has an opening connected to the cylinder 122 to form an airflow channel 121 with the cylinder 122, so that the airflow can only enter through the airflow channel 121, thereby realizing airflow acceleration, so as to facilitate the subsequent triggering of inertial separation.

[0045] Optionally, the cylinder body 122 and the baffle 123 can be of an integrally formed structure or a split structure, and then fixed as a whole by means such as welding. The present invention does not limit this.

[0046] Preferably, an annular limiting plate 113 is formed on the inner wall of the cylindrical main body 110, and the four peripheral edges of the baffle 123 are in contact with and detachably connected to the annular limiting plate 113. The annular limiting plate 113 is used for positioning and installing the cylinder body 122. The baffle 123 can be detachably connected to the annular limiting plate 113 by means such as threaded connection or insertion. The present invention does not limit this. Exemplarily, a number of threaded connection holes are provided corresponding to each other in the circumferential direction between the baffle 123 and the annular limiting plate 113, and the baffle 123 and the annular connecting plate are connected by screws.

[0047] Please continue to refer to Figures 3 - 4 , the mesh cylinder 130 includes a mesh cylinder body 131 and a mesh partition 132. The mesh cylinder body 131 is horizontally arranged in the end cover 140 and abuts against the end of the end cover 140. A through hole is provided at the center of the mesh cylinder body 131. The mesh partition 132 is sleeved outside the mesh cylinder body 131, and the mesh partition 132 is located at the connection between the cylindrical main body 110 and the end cover 140 to isolate the cylindrical main body 110 and the end cover 140.

[0048] Preferably, the mesh cylinder 130 further includes a stainless steel wire mesh 133. The stainless steel wire mesh 133 is filled in the end cover 140 and covers the outside of the mesh cylinder body 131. It should be noted that the stainless steel wire mesh 133 is approximately columnar, has a through hole in the middle, and has a certain deformation ability to facilitate adaptation to the internal space of the end cover 140. In this embodiment, the airflow accelerated by the airflow channel 121 rushes into the mesh cylinder body 131 with mesh holes, passes through the through holes and collides with the end cover 140, thereby triggering inertial separation. The liquid droplets impact the end cover 140 or the edge of the mesh holes due to inertia and coalesce into larger liquid droplets. The coalesced liquid droplets slide down along the surface of the stainless steel wire mesh 133 by gravity to the bottom drain port 112. The purified compressed air flows through the mesh holes on the side wall of the mesh cylinder body 131, the mesh holes on the stainless steel wire mesh 133, and the mesh holes on the mesh partition 132 to the air outlet 111 in sequence, and finally discharges from the air outlet 111.

[0049] In this embodiment, the mesh cylinder body 131 is disposed opposite to the airflow channel 121, and the diameter of the mesh cylinder body 131 is slightly larger than the diameter of the airflow channel 121 to completely receive the airflow accelerated by the airflow channel 121.

[0050] Optionally, the mesh cylinder 131 can be directly welded in the end cover 140. The mesh cylinder 131 and the mesh partition 132 can be an integrally formed structure or a split structure, and then fixed as a whole by welding or the like, and the present invention does not limit this. In this embodiment, the mesh cylinder 131 and the mesh partition 132 are split designs, and the mesh partition 132 is directly sleeved on one end of the mesh cylinder 131 close to the airflow channel 121.

[0051] Preferably, an annular groove is provided at the connection between the end cover 140 and the cylindrical body 110, and the mesh partition 132 is embedded in the annular groove. This installation method of embedding the groove can facilitate the removal and installation of the mesh partition 132. The annular groove mentioned here has the following three opening methods, namely:

[0052] A single opening is provided at the end of the cylindrical body 110;

[0053] A separate opening is provided at the end cover 140; and

[0054] One part is provided at the end of the cylindrical body 110 , and the other part is provided at the opening of the end cover 140 , and the two parts together form an annular groove.

[0055] Exemplarily, the annular groove is separately provided at the opening of the end cover 140 , and the end cover 140 is flange-connected to the cylindrical body 110 , and the mesh partition 132 is clamped and fixed.

[0056] In this embodiment, the mesh cylinder 131 and the mesh partition 132 can be made of stainless steel, and the present invention does not impose any limitation on the size and number of mesh holes thereon.

[0057] Preferably, the drain port 112 includes a first drain port 112a, which is located on a side of the baffle 123 away from the cylinder 122, and the first drain port 112a is used to discharge the liquid water intercepted by the baffle 123. More preferably, the drain port 112 also includes a second drain port 112b, which is located on a side of the mesh partition 132 away from the end cover 140, and the second drain port 112b is used to discharge the liquid water intercepted by the mesh cylinder 130.

[0058] Optionally, the air outlet 111 can be provided on the top or side wall of the cylindrical body 110 according to the requirements, and the present invention is not limited to this. In this embodiment, the air outlet 111 is provided on the side wall of the cylindrical body 110 .

[0059] Preferably, the gas outlet 111 is provided with a connecting flange to facilitate connection with a subsequent gas pipeline.

[0060] Based on this, the present invention further provides an air compressor, which includes an intercooler 200 and the gas-water separation device 100 as described above. The gas-water separation device 100 is integrated at the air outlet end of the intercooler 200. Since the air compressor provided by the present invention and the gas-water separation device 100 above belong to the same inventive concept, the air compressor provided by the present invention has all the advantages of the gas-water separation device 100 above. Therefore, the beneficial effects of the air compressor provided by the present invention will not be elaborated one by one here.

[0061] In this embodiment, the intercooler 200 is a prior art. It adopts a single-pass design, with compressed air flowing through the tube side and water flowing through the shell side. Stainless steel heat exchange tubes with internal fins are used. The gas-water separation device 100 is installed at the air outlet end of the intercooler 200, and the materials of the parts in contact with the compressed air are all made of stainless steel.

[0062] In summary, the embodiment of the present invention provides a gas-water separation device and an air compressor. Compared with the existing split-type intercooler and gas-water separator, the gas-water separation device provided by the present invention is ingeniously designed and can be directly integrated at the air outlet end of the existing intercooler, with a compact structure, especially suitable for working scenarios with limited space. At the same time, the present invention utilizes a triple gas-liquid separation mechanism of baffle interception + inertial collision + partition interception, with a significant gas-liquid separation effect and greatly improved gas-liquid separation efficiency.

[0063] The above is only the preferred embodiment of the present invention and does not impose any limitation on the present invention. Any person skilled in the art, without departing from the technical solution of the present invention, makes any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present invention, which are still within the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A gas-water separation device, integrated at the gas outlet end of an intercooler and arranged along the axial direction of the intercooler, characterized in that: The gas-water separation device comprises a cylindrical body, a partition, a mesh cylinder and an end cover; wherein, The cylindrical body has one end connected to the outlet end of the intercooler as an air inlet end, and the other end is sealed by the end cover. The top or side wall of the cylindrical body is provided with an air outlet, and the bottom is provided with a water outlet. The partition is arranged in the cylindrical body and close to the air inlet end, and has an air flow channel connected to the air inlet end, and the diameter of the air flow channel is smaller than the diameter of the air inlet end; The mesh cylinder is arranged in the end cover and has a through hole arranged opposite to the air flow channel. The mesh cylinder also has a plurality of mesh holes communicated with the cylindrical body.

2. The gas-water separation device according to claim 1, characterized in that: The partition includes a cylinder and a baffle, wherein the baffle is arranged closer to the air inlet end than the cylinder, and the edges of the baffle are tightly connected to the inner wall of the cylindrical body. The baffle has an opening connected to the cylinder to form the air flow channel with the cylinder.

3. The gas-water separation device according to claim 2, characterized in that: An annular limiting plate is formed on the inner wall of the cylindrical body, and the edges around the baffle are attached to and detachably connected to the annular limiting plate.

4. The gas-water separation device according to claim 2, characterized in that: The drain port comprises a first drain port, and the first drain port is located at a side of the baffle away from the cylinder.

5. The gas-water separation device according to claim 1, characterized in that: The mesh cylinder includes a mesh cylinder body and a mesh partition. The mesh cylinder body is horizontally arranged inside the end cover and abuts against the end of the end cover. The through hole is arranged at the center of the mesh cylinder body. The mesh partition is sleeved outside the mesh cylinder body, and the mesh partition is located at the connection between the cylindrical body and the end cover to isolate the cylindrical body from the end cover.

6. The gas-water separation device according to claim 5, characterized in that: An annular groove is provided at the connection between the end cover and the cylindrical body, and the mesh partition is embedded in the annular groove.

7. The gas-water separation device according to claim 5, characterized in that: The mesh cylinder also includes a stainless steel wire mesh, which is filled in the end cover and wrapped outside the mesh cylinder.

8. The gas-water separation device according to claim 5, characterized in that: The drain port includes a second drain port, and the second drain port is located on a side of the mesh partition away from the end cover.

9. The gas-water separation device according to claim 1, characterized in that: The end cover is flange-connected to the cylindrical body.

10. An air compressor, characterized in that: It comprises an intercooler and a gas-water separation device according to any one of claims 1 to 9, wherein the gas-water separation device is integrated at the gas outlet end of the intercooler.

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