Inverted filter element type oil-gas separation device

Abstract

The utility model discloses an inverted filter element type oil-gas separation device which comprises a barrel, a partition plate is arranged in the barrel and divides the interior of the barrel into a gas inlet cavity and a gas outlet cavity located above the gas inlet cavity, a liquid drainage hole communicated with the bottom of the gas outlet cavity is formed in the side wall of the barrel, and a filter element with a downward opening and communicated with the gas inlet cavity is arranged on the partition plate. According to the scheme, on one hand, the filtering efficiency of the filter element is improved, and blockage of filter element filter materials and pores in the surface of the filter element after accumulated liquid is accumulated and saturated is prevented; on the other hand, the oil-gas separation efficiency of the oil-gas separator is improved, and compressed air in the air outlet cavity is prevented from bringing accumulated liquid at the bottom of the inner wall of the filter element with the upward opening into a downstream pipeline to pollute gas equipment or influence the quality of terminal products.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-gas separation devices, and in particular to an inverted filter element type oil-gas separation device. Background Technology

[0002] Air compressors are widely used in industries and manufacturing, and their core function is to generate power by compressing air. During the operation of an air compressor, lubricating oil mixes with high-temperature compressed air to form an oil-air mixture. An oil-air separator is needed to efficiently separate the oil from the air to ensure the cleanliness of the output air and to allow for the recycling of lubricating oil. The performance of the oil-air separator directly affects the air compressor's energy efficiency, operational stability, and maintenance costs. Traditional oil-air separators typically use upward-facing filter elements, relying on the interception, diffusion, and collision effects of the filter material to capture oil droplets. However, in practical applications, the filter element is exposed to high humidity and high oil mist concentration environments for extended periods. Oil tends to accumulate continuously on the surface of the filter material and in its internal pores, causing liquid to accumulate at the bottom of the filter element's inner wall. This can lead to some oil entering downstream pipelines with the compressed air, contaminating air-using equipment or affecting the quality of end products. Furthermore, once the bottom of the filter element is saturated with liquid, it severely impacts the filter's filtration efficiency.

[0003] For example, Chinese Patent Publication No. CN101144407A, published on March 19, 2008, entitled "Novel Oil-Gas Separator," includes a top cover and a housing connected to the top cover. The housing is characterized by an oil collecting cup inside, with a cavity filter element inside the oil collecting cup. The cavity filter element is connected to the top cover, and the cavity within the filter element communicates with the air outlet cavity inside the top cover. The air outlet cavity communicates with the air outlet, and the air inlet on the top cover communicates with the inner cavity of the oil collecting cup. The inner cavity of the oil collecting cup and the cavity within the filter element are separated by the filter element. When this device is installed on the exhaust pipe of a transmission, transfer case, axle, etc., the oil outlet of the oil collecting cup, after passing through the filter, allows the separated lubricating oil to flow back to components such as the main reducer, mechanical transmission, and wheel-side reducer.

[0004] The drawbacks of existing patents are: existing oil-gas separators usually use filter elements with the opening facing upwards. The filter elements are exposed to high humidity and high oil mist concentration environment for a long time. Oil is easy to accumulate continuously on the surface of the filter material and in the internal pores, causing the liquid to accumulate at the bottom of the inner wall of the filter element. This may cause some oil to enter the downstream pipeline with the compressed air, contaminating the gas-using equipment or affecting the quality of the end product. Moreover, once the liquid at the bottom of the filter element is saturated, it will seriously affect the filtration effect of the filter element. Utility Model Content

[0005] The purpose of this invention is to improve the problem that oil tends to accumulate at the bottom of the inner wall of the filter element in existing oil-gas separators, resulting in low filter element filtration efficiency and low oil-gas separation efficiency. This invention provides an inverted filter element type oil-gas separator that improves filter element filtration efficiency and oil-gas separation efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An inverted filter cartridge type oil-gas separator includes a cylindrical body. A partition inside the cylindrical body divides the interior into an inlet chamber and an outlet chamber located above the inlet chamber. A drain hole communicating with the bottom of the outlet chamber is provided on the side wall of the cylindrical body. A filter cartridge with its opening facing downwards and communicating with the inlet chamber is provided on the partition. This inverted filter cartridge type oil-gas separator uses a filter cartridge with its opening facing downwards to prevent oil accumulated on the filter media and surface of the filter cartridge from accumulating at the bottom of the inner wall of the filter cartridge with its opening facing upwards and thus unable to drain. The cylinder is internally divided into an inlet chamber and an outlet chamber by a partition. The filter element is positioned with its opening facing downwards on the partition, and the opening of the filter element connects to the inlet chamber. The oil-gas mixture enters the inlet chamber of the oil-gas separator, is filtered by the filter element, and then enters the outlet chamber. Because the filter element opening faces downwards in this technical solution, the oil accumulated on the inner wall of the filter element flows into the inlet chamber under gravity, while the oil accumulated on the outer wall of the filter element accumulates on the partition, i.e., at the bottom of the outlet chamber, and is discharged through the drain hole. This technical solution's downward-facing filter element design prevents oil from accumulating at the bottom of the filter element's inner wall when the opening faces upwards, thus improving the filter element's filtration efficiency and preventing saturation of the filter element's material and surface pores from becoming clogged. Furthermore, it improves the oil-gas separation efficiency of the oil-gas separator, preventing compressed air in the outlet chamber from carrying the accumulated liquid at the bottom of the filter element's inner wall into downstream pipelines, contaminating gas-using equipment or affecting the quality of the final product. In summary, the filter element with its downward-facing opening in this technical solution improves, to some extent, the problem of oil accumulating at the bottom of the inner wall of the filter element in existing oil-gas separators, which leads to low filter element filtration efficiency and low oil-gas separation efficiency.

[0008] Preferably, the upper surface of the partition is inclined to allow the accumulated liquid on the partition to flow into the drain hole. The inclined surface has a guiding function, facilitating the drainage of the accumulated liquid on the upper surface of the partition. In this technical solution, the upper surface of the partition is not limited to an inclined surface; it can also be a convex surface or a spherical surface with an upward convexity in the middle, which facilitates the flow of accumulated liquid on the partition into the drain hole.

[0009] Preferably, the drain hole is located on the lower side of the inclined surface. This prevents excessive liquid accumulation on the upper surface of the partition and ensures timely drainage of any accumulated liquid.

[0010] Preferably, a liquid collection box is provided on the outer wall of the cylinder, and the liquid collection box is connected to the bottom of the air outlet chamber through a drain hole. The liquid accumulated on the baffle plate is discharged into the liquid collection box through the drain hole, and discharged uniformly through the liquid collection box to prevent a large amount of liquid from accumulating on the baffle plate and to prevent the compressed air in the air outlet chamber from carrying the liquid into the downstream pipeline when it is discharged, which could contaminate the gas-using equipment or affect the quality of the end product.

[0011] Preferably, a sleeve with its upper end connected to the lower end face of the partition and its lower end open is provided below the partition. An air inlet communicating with the air intake chamber is provided on the side wall of the cylinder. The air inlet is located outside the sleeve, and the opening of the filter element communicates with the inside of the sleeve. The sleeve is vertically continuous. The oil-gas mixture enters the air intake chamber from the air inlet. Since the air inlet is located outside the sleeve, the oil-gas mixture entering the air intake chamber first enters the partition formed between the sleeve and the cylinder. The sleeve causes the oil-gas mixture initially entering the air intake chamber to rotate, performing preliminary oil-gas separation. The oil-gas mixture after preliminary separation enters the sleeve from the bottom end and is filtered by the downward-facing filter element before entering the air outlet chamber.

[0012] Preferably, the open end of the filter element extends downward through the partition and is connected to a guide sleeve, which is funnel-shaped with a smaller top and a larger bottom. The guide sleeve increases the cross-sectional area of ​​the open end of the filter element and connects to the middle position of the sleeve. The guide sleeve has a guiding function to collect the relatively dry and low-temperature gas in the middle position of the hollow cavity of the sleeve.

[0013] Preferably, the filter element includes a filter element support mounted on a partition and a filter element fitted onto the filter element support. The side wall of the filter element support has several filter holes, which connect the interior of the filter element to the air outlet chamber. The filter element covers the filter holes and is located within the air outlet chamber. The filter element support is mounted on the partition, which has mounting holes that mate with the filter element. The filter element support and the mounting holes are sealed together. The opening of the filter element support faces downwards and connects to the air inlet chamber. The filter element is fitted onto the filter element support, with the portion of the filter element support having filter holes located within the air outlet chamber, and the filter element covering the filter holes. The filter element support and the mounting holes are sealed together. Depending on whether the filter element support needs to be disassembled, the sealing connection can be a threaded connection or a welding connection. Fitting the filter element onto the filter element support facilitates filter element replacement and reduces filter element replacement and maintenance costs.

[0014] Preferably, the outer wall of the filter element support is provided with an upward-facing annular groove, and the lower end of the filter element extends into the annular groove. The depth of the annular groove is set according to actual needs, and the annular groove serves to limit the movement of the filter element. A small amount of oil accumulates on the surface of the filter element in the annular groove. Once the annular groove is saturated, it overflows onto the upper surface of the partition plate and is discharged through the drain hole.

[0015] Preferably, the filter element support is provided with a limiting member above it to limit the filter element on the filter element support. The limiting member is used to limit and fix the filter element on the filter element support.

[0016] Preferably, the bottom of the air intake chamber is provided with a guide funnel whose upper end is connected to the inner wall of the cylinder and whose lower end is open. The inner wall of the guide funnel is a conical surface that is larger at the top and smaller at the bottom. The guide funnel allows the oil separated in the air intake chamber to be collected and gathered at the bottom of the cylinder. The bottom of the cylinder is provided with an oil drain pipe. The guide funnel has the function of collecting accumulated liquid, improving the situation where accumulated liquid adheres to the inner wall of the cylinder and cannot be deposited.

[0017] Preferably, the cylinder includes an upward-facing cylinder body and a cylinder cover rotatably disposed on the upper end of the cylinder body. The cylinder cover is rotatably disposed on the cylinder body, which facilitates maintenance. The cylinder body is provided with an air inlet communicating with an air inlet chamber and an air outlet communicating with an air outlet chamber, and an oil drain pipe is provided at the bottom of the cylinder body.

[0018] Therefore, this utility model has the following beneficial effects: on the one hand, it improves the filtration efficiency of the filter element and prevents the filter element material and the pores on the surface of the filter element from being blocked after the accumulated liquid becomes saturated; on the other hand, it improves the oil-gas separation efficiency of the oil-gas separator and prevents the compressed air in the outlet chamber from carrying the accumulated liquid at the bottom of the inner wall of the filter element with the opening facing upward into the downstream pipeline, polluting the gas-using equipment or affecting the quality of the end product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the partition, filter element and sleeve of this utility model.

[0022] Figure 4 This is a cross-sectional view of the partition, filter element and sleeve of this utility model.

[0023] As shown in the picture:

[0024] Cylinder body 1, cylinder body 1.1, cylinder cover 1.2

[0025] Partition 2, Inclined Surface 2.1

[0026] Filter element 3, filter element support 3.1, filter holes 3.1.1, annular groove 3.1.2, filter element 3.2, limiting element 3.3,

[0027] 4. Liquid collection box; 5. Sleeve; 6. Guide sleeve; 7. Flow funnel; 8. Air inlet chamber; 9. Air outlet chamber; 10. Liquid drain hole; 11. Air inlet; 12. Air outlet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an inverted filter element 3 type oil-gas separator includes a cylinder 1, a partition 2 is provided inside the cylinder 1, the partition 2 divides the inside of the cylinder 1 into an air inlet chamber 8 and an air outlet chamber 9 located above the air inlet chamber 8, a drain hole 10 connected to the bottom of the air outlet chamber 9 is provided on the side wall of the cylinder 1, and a filter element 3 with an opening facing downward and connected to the air inlet chamber 8 is provided on the partition 2.

[0030] Traditional oil-gas separators typically use upward-facing filter elements 3, relying on the interception, diffusion, and collision effects of the filter material to capture oil droplets. However, in practical applications, filter elements 3 are exposed to high humidity and high oil mist concentration environments for extended periods. Oil tends to accumulate continuously on the surface of the filter material and in its internal pores, causing liquid to accumulate at the bottom of the inner wall of filter element 3. This can lead to some oil potentially entering downstream pipelines with the compressed air, contaminating gas-using equipment or affecting the quality of end products. Furthermore, once the bottom of filter element 3 becomes saturated with liquid, it severely impacts the filtration efficiency of filter element 3.

[0031] In order to improve the problem that oil tends to accumulate at the bottom of the inner wall of the filter element 3 in the existing oil-gas separator, resulting in low filtration efficiency and low oil-gas separation efficiency, an inverted filter element 3 type oil-gas separator is provided to improve the filtration efficiency and oil-gas separation efficiency of the filter element 3.

[0032] In the above embodiment, an inverted filter element 3 type oil-gas separator uses a filter element 3 with its opening facing downwards to prevent oil accumulated on the filter media and surface of the filter element 3 from accumulating at the bottom of the inner wall of the filter element 3 with its opening facing upwards and thus unable to drain. The interior of the cylinder 1 is divided into an inlet chamber 8 and an outlet chamber 9 by a partition 2. The filter element 3 is set with its opening facing downwards on the partition 2 and its opening is connected to the inlet chamber 8. The oil-gas mixture enters the inlet chamber 8 of the oil-gas separator, is filtered by the filter element 3, and enters the outlet chamber 9. Because the filter element 3 is set with its opening facing downwards in this technical solution, the oil accumulated on the inner wall of the filter element 3 flows into the inlet chamber 8 under the action of gravity, while the oil accumulated on the outer wall of the filter element 3 accumulates on the partition 2, that is, at the bottom of the outlet chamber 9, and is discharged through the drain hole 10. This technical solution, with the filter element 3 facing downwards, prevents oil from accumulating at the bottom of the filter element 3's inner wall (which faces upwards) and being unable to drain. On one hand, this improves the filtration efficiency of the filter element 3, preventing saturation from clogging the filter media and pores on the surface of the filter element 3. On the other hand, it improves the oil-gas separation efficiency of the oil-gas separator, preventing compressed air in the outlet chamber 9 from carrying the accumulated oil at the bottom of the filter element 3's inner wall into downstream pipelines, contaminating gas-using equipment or affecting the quality of the final product. In summary, this technical solution, with the filter element 3 facing downwards, to a certain extent improves the problem of oil accumulation at the bottom of the filter element 3's inner wall in existing oil-gas separators, which leads to low filtration efficiency and low oil-gas separation efficiency.

[0033] Further optimization of partition 2, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the upper surface of the partition 2 is an inclined surface 2.1, which allows the accumulated liquid on the partition 2 to flow into the drain hole 10. The inclined surface 2.1 has a guiding function, promoting the discharge of the accumulated liquid on the upper surface of the partition 2. In this technical solution, the upper surface of the partition 2 is not limited to an inclined surface 2.1, but can also be a convex surface or a spherical surface with an upward convexity in the middle, which facilitates the flow of the accumulated liquid on the partition 2 into the drain hole 10.

[0034] Preferably, the drain hole 10 is located on the lower side of the inclined surface 2.1. This prevents excessive liquid accumulation on the upper surface of the partition 2 and ensures timely drainage of the accumulated liquid.

[0035] Further optimization of the drain hole 10, such as... Figure 1 , Figure 2 As shown, a liquid collection box 4 is provided on the outer wall of the cylinder 1. The liquid collection box 4 is connected to the bottom of the air outlet chamber 9 through a drain hole 10. The liquid accumulated on the partition 2 is discharged into the liquid collection box 4 through the drain hole 10. The liquid collection box 4 discharges the liquid in a unified manner, preventing a large amount of liquid from accumulating on the partition 2 and preventing the compressed air in the air outlet chamber 9 from carrying the liquid into the downstream pipeline when it is discharged, which could contaminate the gas-using equipment or affect the quality of the end product.

[0036] Further optimization of cylinder 1, such as... Figure 1 , Figure 2 As shown, the cylinder body 1 includes an upward-facing cylinder body 1.1 and a cylinder cover 1.2 rotatably mounted on the upper end of the cylinder body 1.1. The cylinder cover 1.2 is rotatably mounted on the cylinder body 1.1, and the rotatable mounting facilitates maintenance. The cylinder body 1 is provided with an air inlet 11 that connects to the air inlet chamber 8 and an air outlet 12 that connects to the air outlet chamber 9. An oil drain pipe is provided at the bottom of the cylinder body 1.

[0037] Example 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an inverted filter element 3 type oil-gas separator includes a cylinder 1, a partition 2 is provided inside the cylinder 1, the partition 2 divides the inside of the cylinder 1 into an air inlet chamber 8 and an air outlet chamber 9 located above the air inlet chamber 8, a drain hole 10 connected to the bottom of the air outlet chamber 9 is provided on the side wall of the cylinder 1, and a filter element 3 with an opening facing downward and connected to the air inlet chamber 8 is provided on the partition 2.

[0038] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a sleeve 5 is provided below the partition 2, with its upper end connected to the lower end face of the partition 2 and its lower end open. An air inlet 11 is provided on the side wall of the cylinder 1, which communicates with the air inlet chamber 8. The air inlet 11 is located outside the sleeve 5, and the opening of the filter element 3 communicates with the inside of the sleeve 5. The sleeve 5 is vertically continuous, and the oil-gas mixture enters the air inlet chamber 8 from the air inlet 11. Since the air inlet 11 is located outside the sleeve 5, the oil-gas mixture entering the air inlet chamber 8 first enters the partition formed between the sleeve 5 and the cylinder 1. The sleeve 5 causes the oil-gas mixture that initially enters the air inlet chamber 8 to rotate, performing preliminary oil-gas separation. The oil-gas mixture after preliminary oil-gas separation enters the sleeve 5 from the bottom end of the sleeve 5 and is filtered by the downward-facing filter element 3 before entering the air outlet chamber 9.

[0039] Further optimizations were made to filter element 3, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the open end of the filter element 3 extends downward through the partition 2 and is connected to a guide sleeve 6. The guide sleeve 6 is funnel-shaped, with a smaller top and a larger bottom. The guide sleeve 6 increases the cross-sectional area of ​​the open end of the filter element 3, and the guide sleeve 6 connects to the middle position of the sleeve 5. The guide sleeve 6 has a guiding function and is used to collect the relatively dry and low-temperature gas in the middle position of the hollow cavity of the sleeve 5.

[0040] Further optimization of partition 2, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the upper surface of the partition 2 is an inclined surface 2.1, which allows the accumulated liquid on the partition 2 to flow into the drain hole 10. The inclined surface 2.1 has a guiding function, promoting the discharge of the accumulated liquid on the upper surface of the partition 2. In this technical solution, the upper surface of the partition 2 is not limited to an inclined surface 2.1, but can also be a convex surface or a spherical surface with an upward convexity in the middle, which facilitates the flow of the accumulated liquid on the partition 2 into the drain hole 10.

[0041] Preferably, the drain hole 10 is located on the lower side of the inclined surface 2.1. This prevents excessive liquid accumulation on the upper surface of the partition 2 and ensures timely drainage of the accumulated liquid.

[0042] Further optimization of the drain hole 10, such as... Figure 1 , Figure 2 As shown, a liquid collection box 4 is provided on the outer wall of the cylinder 1. The liquid collection box 4 is connected to the bottom of the air outlet chamber 9 through a drain hole 10. The liquid accumulated on the partition 2 is discharged into the liquid collection box 4 through the drain hole 10. The liquid collection box 4 discharges the liquid in a unified manner, preventing a large amount of liquid from accumulating on the partition 2 and preventing the compressed air in the air outlet chamber 9 from carrying the liquid into the downstream pipeline when it is discharged, which could contaminate the gas-using equipment or affect the quality of the end product.

[0043] Further optimization of cylinder 1, such as... Figure 1 , Figure 2 As shown, the cylinder body 1 includes an upward-facing cylinder body 1.1 and a cylinder cover 1.2 rotatably mounted on the upper end of the cylinder body 1.1. The cylinder cover 1.2 is rotatably mounted on the cylinder body 1.1, and the rotatable mounting facilitates maintenance. The cylinder body 1 is provided with an air inlet 11 that connects to the air inlet chamber 8 and an air outlet 12 that connects to the air outlet chamber 9. An oil drain pipe is provided at the bottom of the cylinder body 1.

[0044] In summary, this embodiment improves the filtration efficiency of the filter element and prevents the filter media and pores on the filter element surface from becoming clogged after the accumulated liquid becomes saturated. On the other hand, it improves the oil-gas separation efficiency of the oil-gas separator and prevents the compressed air in the outlet chamber from carrying the accumulated liquid at the bottom of the filter element's inner wall with the opening facing upward into the downstream pipeline, thus contaminating the gas-using equipment or affecting the quality of the end product.

[0045] Example 3, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an inverted filter element 3 type oil-gas separator includes a cylinder 1, a partition 2 is provided inside the cylinder 1, the partition 2 divides the inside of the cylinder 1 into an air inlet chamber 8 and an air outlet chamber 9 located above the air inlet chamber 8, a drain hole 10 connected to the bottom of the air outlet chamber 9 is provided on the side wall of the cylinder 1, and a filter element 3 with an opening facing downward and connected to the air inlet chamber 8 is provided on the partition 2.

[0046] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the filter element 3 includes a filter element support 3.1 mounted on a partition 2 and a filter element 3.2 fitted onto the filter element support 3.1. The side wall of the filter element support 3.1 has several filter holes 3.1.1, which connect the interior of the filter element 3 to the air outlet chamber 9. The filter element 3.2 covers the filter holes 3.1.1 and is located within the air outlet chamber 9. The filter element support 3.1 is mounted on the partition 2, which has mounting holes that mate with the filter element 3. The filter element support 3.1 is sealed to the mounting holes. The opening of the filter element support 3.1 faces downwards and connects to the air inlet chamber 8. The filter element 3.2 is fitted onto the filter element support 3.1, with the portion of the filter element support 3.1 containing the filter holes 3.1.1 located within the air outlet chamber 9. The filter element 3.2 covers the filter holes 3.1.1. The filter element support 3.1 is sealed to the mounting holes. Depending on whether the filter element support 3.1 needs to be disassembled, the sealed connection can be a threaded connection or a fixed connection such as welding. The filter element 3.2 is fitted onto the filter element bracket 3.1, which facilitates the replacement of the filter element 3.2 and reduces the replacement and maintenance costs of the filter element 3.

[0047] The filter element holder 3.1 has been further optimized, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the outer wall of the filter element support 3.1 has an upward-facing annular groove 3.1.2, into which the lower end of the filter element 3.2 extends. The depth of the annular groove 3.1.2 is set according to actual needs, and the annular groove 3.1.2 serves to limit the movement of the filter element 3.2. A small amount of oil accumulates on the surface of the filter element 3.2 in the annular groove 3.1.2. Once the groove is saturated, the oil overflows onto the upper surface of the partition plate 2 and is discharged through the drain hole 10.

[0048] Further optimizations were made to filter element 3, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a limiting member 3.3 is provided above the filter element support 3.1 to limit the filter element 3.2 onto the filter element support 3.1. The limiting member 3.3 is used to limit and fix the filter element 3.2 onto the filter element support 3.1.

[0049] Further optimization of partition 2, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the upper surface of the partition 2 is an inclined surface 2.1, which allows the accumulated liquid on the partition 2 to flow into the drain hole 10. The inclined surface 2.1 has a guiding function, promoting the discharge of the accumulated liquid on the upper surface of the partition 2. In this technical solution, the upper surface of the partition 2 is not limited to an inclined surface 2.1, but can also be a convex surface or a spherical surface with an upward convexity in the middle, which facilitates the flow of the accumulated liquid on the partition 2 into the drain hole 10.

[0050] Preferably, the drain hole 10 is located on the lower side of the inclined surface 2.1. This prevents excessive liquid accumulation on the upper surface of the partition 2 and ensures timely drainage of the accumulated liquid.

[0051] Further optimization of the drain hole 10, such as... Figure 1 , Figure 2 As shown, a liquid collection box 4 is provided on the outer wall of the cylinder 1. The liquid collection box 4 is connected to the bottom of the air outlet chamber 9 through a drain hole 10. The liquid accumulated on the partition 2 is discharged into the liquid collection box 4 through the drain hole 10. The liquid collection box 4 discharges the liquid in a unified manner, preventing a large amount of liquid from accumulating on the partition 2 and preventing the compressed air in the air outlet chamber 9 from carrying the liquid into the downstream pipeline when it is discharged, which could contaminate the gas-using equipment or affect the quality of the end product.

[0052] Further optimization of cylinder 1, such as... Figure 1 , Figure 2 As shown, the cylinder body 1 includes an upward-facing cylinder body 1.1 and a cylinder cover 1.2 rotatably mounted on the upper end of the cylinder body 1.1. The cylinder cover 1.2 is rotatably mounted on the cylinder body 1.1, and the rotatable mounting facilitates maintenance. The cylinder body 1 is provided with an air inlet 11 that connects to the air inlet chamber 8 and an air outlet 12 that connects to the air outlet chamber 9. An oil drain pipe is provided at the bottom of the cylinder body 1.

[0053] In summary, this embodiment improves the filtration efficiency of the filter element and prevents the filter media and pores on the filter element surface from becoming clogged after the accumulated liquid becomes saturated. On the other hand, it improves the oil-gas separation efficiency of the oil-gas separator and prevents the compressed air in the outlet chamber from carrying the accumulated liquid at the bottom of the filter element's inner wall with the opening facing upward into the downstream pipeline, thus contaminating the gas-using equipment or affecting the quality of the end product.

[0054] The basic structure is based on Implementation Example 1. Figure 1 , Figure 2 As shown, the cylinder 1 is further optimized. The bottom of the air intake chamber 8 is provided with a guide funnel 7, which is connected to the inner wall of the cylinder 1 at the upper end and opened at the lower end. The inner wall of the guide funnel 7 is a conical surface that is larger at the top and smaller at the bottom. The guide funnel 7 allows the oil separated in the air intake chamber 8 to be concentrated and collected at the bottom of the cylinder 1. The bottom of the cylinder 1 is provided with an oil drain pipe. The guide funnel 7 has the function of collecting the accumulated liquid, improving the situation where the accumulated liquid cannot be deposited on the inner wall of the cylinder 1.

[0055] The specific embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the specific scope of implementation of this utility model. All equivalent changes made to the shape and structure of this utility model should be included within the protection scope of this utility model.

Claims

1. An inverted cartridge oil and gas separator comprising a cylindrical body, characterized in that, The cylinder is provided with a partition plate, which divides the cylinder into an air inlet cavity and an air outlet cavity above the air inlet cavity.

2. An inverted cartridge oil and gas separator according to claim 1, characterized in that, The upper end surface of the partition plate is a slope, so that the accumulated liquid on the partition plate flows to the liquid discharge hole.

3. An inverted cartridge oil and gas separator according to claim 1 or 2, characterized in that The cylinder is provided with a liquid collecting box on the outer wall, which is communicated with the bottom of the air outlet cavity through the liquid discharge hole.

4. The inverted cartridge oil and gas separator of claim 1 or 2, wherein, The lower end of the sleeve is open.

5. An inverted cartridge oil and gas separator according to claim 4, wherein, The upper end of the sleeve is connected with the partition plate.

6. An inverted cartridge oil and gas separator according to claim 1 or 2, characterized in that, The opening end of the filter core extends downward through the partition plate and is connected with a guide sleeve.

7. An inverted cartridge oil and gas separator according to claim 6, characterized in that, The guide sleeve is funnel-shaped.

8. An inverted cartridge oil and gas separator according to claim 6, wherein, The filter core includes a filter core support arranged on the partition plate and a filter element sleeved on the filter core support.

9. An inverted cartridge oil and gas separator according to claim 1 or 2, wherein, The outer side wall of the filter core support is provided with an annular groove with an upward opening.

10. The inverted cartridge oil and gas separator of claim 1 or 2, wherein, The lower end of the filter element extends into the annular groove. The filter core support is provided with a limiting member above the filter core support. The bottom of the air inlet cavity is provided with a flow guide funnel with an upper end connected with the inner wall of the cylinder and a lower end open. The inner wall of the flow guide funnel is a conical surface with a large upper end and a small lower end. The cylinder includes a cylinder body with an upward opening and a cylinder cover rotatably arranged on the upper end of the cylinder body.

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