Separating type oil-gas separator filter element

Abstract

The utility model discloses a separating type oil-gas separator filter element which comprises a filter element support arranged in an oil-gas separator and a filter element body arranged on the filter element support in a sleeved mode, the filter element support comprises a support cylinder with an upward opening, vent holes are formed in the side wall of the support cylinder, and the filter element body is arranged on the support cylinder in a sleeved mode and covers the vent holes. According to the separation type oil-gas separator filter element in the technical scheme, only the filter element body on the filter element support needs to be replaced when the separation type oil-gas separator filter element is used, the whole oil-gas separator filter element does not need to be replaced, and the replacement and maintenance cost of the oil-gas separator filter element is reduced. And the filter element body sleeves the bracket cylinder, so that the replacement operation is convenient, and the manual operation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil-gas separators, and in particular to a separation-type oil-gas separator filter element. Background Technology

[0002] An oil-gas separator filter element is a device that separates gas from lubricating oil to ensure the normal operation of the lubrication system. Applications include solid-liquid, gas-solid, and gas-liquid separation and purification in fields such as petroleum, chemical, metallurgy, aerospace, electronics, power, pharmaceuticals, environmental protection, nuclear energy, natural gas, refractory materials, and fire-fighting equipment.

[0003] The compressed air exiting the screw compressor head carries oil droplets of varying sizes. Larger droplets are separated by the oil-gas separator, while smaller droplets must be filtered by the filter material of the oil-gas separator filter element. Current oil-gas separator filter elements are integrated, requiring replacement of the entire element after prolonged use, resulting in high maintenance costs.

[0004] For example, Chinese Patent Publication No. CN216447104U, published on May 6, 2022, entitled "An Inner Core of a Compressor Oil-Gas Separator", is characterized in that: the inner core includes a filter cylinder and a connecting flange disposed on one end face of the filter cylinder, or the inner core includes a filter cylinder and a shell disposed outside the filter cylinder; the filter cylinder is a cylindrical shape formed by a filter material coated with phenolic resin.

[0005] The drawback of existing patents is that existing oil-gas separator filter elements are integrated, and after a long period of use, the entire oil-gas separator filter element needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0006] The purpose of this invention is to solve the problem of excessively high replacement and maintenance costs of existing integrated oil-gas separator filter elements, and to provide a separate oil-gas separator filter element that reduces the maintenance costs of oil-gas separator filter elements.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A separate oil-gas separator filter element includes a filter element support disposed within the oil-gas separator and a filter element body sleeved on the filter element support. The filter element support includes an upward-opening support cylinder with vent holes on its side wall. The filter element body is sleeved on the support cylinder and covers the vent holes. This separate oil-gas separator filter element only requires replacement of the filter element body on the filter element support during use, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body being sleeved on the support cylinder facilitates replacement and reduces the difficulty of manual operation.

[0009] The filter element body filters small oil droplets through the filter material, which is fixed to the outer wall of the support cylinder by means of bonding or other methods.

[0010] The filter element support bracket supports the filter element body through a support cylinder, and the vent holes are evenly distributed on the side wall of the support cylinder.

[0011] Preferably, the filter element support further includes a connecting portion disposed on the support cylinder, and the support cylinder is fixed inside the oil-gas separator via the connecting portion. The connecting portion is fixed inside the oil-gas separator, so that the support cylinder and the filter element body are fixedly disposed inside the oil-gas separator.

[0012] Preferably, the connecting part is a connecting flange provided on the outer wall of the support cylinder, and the connecting flange is erected and fixed on the oil-gas separator.

[0013] Preferably, the outer wall of the support tube mates with the inner wall of the filter element body, and the filter element body and the support tube are bonded together. The connection method between the filter element body and the support tube is not limited to bonding; other embodiments include: a limiting sleeve is fitted onto the lower outer wall of the support tube, and the filter element body is limited on the support tube by the limiting sleeve.

[0014] Preferably, the outer peripheral wall of the filter element body is a conical surface, wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall compared to a vertically oriented one. If the outer peripheral wall is vertical, the separated oil slides down its surface, reducing the separation efficiency of the oil-gas mixture constantly impacting the outer peripheral wall. This leads to the formation of an oil film on the outer peripheral wall, causing a large area of ​​the oil-gas mixture to impact the film, further reducing separation efficiency. With the conical outer peripheral wall, less oil slides down the outer peripheral wall due to gravity, preventing the formation of a thick oil layer and improving separation efficiency, thus enhancing the filtration effect of the oil-gas separator filter element.

[0015] Preferably, a guide sleeve is inserted into the support cylinder, and the side wall of the guide sleeve is provided with perforations, the perforations being angled downwards or upwards. There are multiple perforations, evenly distributed on the side wall of the guide sleeve. The angled downwards or upwards perforations allow gas to enter the inner cavity of the support cylinder from the guide sleeve, forming a vortex. This vortex promotes further oil-gas separation, thereby improving the filtration effect of the oil-liquid separator filter element.

[0016] Preferably, the filter element support further includes a filter cover sleeved outside the support cylinder. The filter cover has through holes on its sidewalls, forming a downward-facing receiving groove between the filter cover and the support cylinder. The filter element body is inserted into the receiving groove. The filter cover protects the filter element body. The oil-gas mixture directly impacts the filter cover, reducing the formation of an oil film on the filter element body.

[0017] Preferably, the outer peripheral wall of the filter cover is a conical surface, wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall compared to a vertically oriented one. If the outer peripheral wall is vertical, the separated oil slides down it, reducing the separation efficiency of the oil-gas mixture constantly impacting the wall. This leads to the formation of an oil film on the outer peripheral wall, causing a large area of ​​the oil-gas mixture to impact the film, further reducing separation efficiency. With the conical outer peripheral wall, less oil slides down the wall due to gravity, preventing the formation of a thick oil layer and improving separation efficiency, thus enhancing the filtration effect of the oil-gas separator filter element.

[0018] Preferably, the inner wall of the receiving groove is cylindrical, and the filter element body is cylindrical, which facilitates the insertion of the filter element body into the receiving groove.

[0019] Preferably, the filter cover and the support cylinder are coaxially arranged, and both are mounted on the connecting part and fixed inside the oil-gas separator via the connecting part. There are various ways to fix the filter cover to the connecting part; for example, the filter cover can be directly welded to the connecting part.

[0020] Preferably, the bottom center of the support cylinder is recessed to form an oil collection groove. The oil collection groove is used to collect the oil inside the support cylinder.

[0021] Preferably, the bottom end of the support cylinder is provided with an oil drain hole, which is located inside the oil collection groove.

[0022] Therefore, this utility model has the following beneficial effects: During use, only the filter element body on the filter element bracket needs to be replaced, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body is fitted onto the bracket cylinder, making replacement convenient and reducing the difficulty of manual operation. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of an embodiment of the present invention installed inside an oil-gas separator.

[0024] Figure 2This is a structural schematic diagram of one embodiment of the present utility model.

[0025] Figure 3 This is an exploded view of one embodiment of this utility model.

[0026] Figure 4 This is a schematic diagram of a filter element support structure in Embodiment 1 of this utility model.

[0027] Figure 5 This is a structural schematic diagram of a second embodiment of the present invention.

[0028] Figure 6 This is a partially enlarged view of the guide sleeve in Embodiment 2 of this utility model.

[0029] Figure 7 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0030] Figure 8 This is a structural schematic diagram of one embodiment of the present utility model.

[0031] As shown in the picture:

[0032] Filter element bracket 1, bracket cylinder 1.1, vent hole 1.1.1, connecting part 1.2, filter cover 1.3, through hole 1.3.1, oil collection groove 1.4, oil drain hole 1.5

[0033] Filter body 2,

[0034] Guide sleeve 3, punching 3.1, Detailed Implementation

[0035] 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.

[0036] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 The filter element of a split-type oil-gas separator shown includes a filter element support 1 disposed in the oil-gas separator and a filter element body 2 sleeved on the filter element support 1. The filter element support 1 includes a support cylinder 1.1 with the opening facing upward. A vent hole 1.1.1 is provided on the side wall of the support cylinder 1.1. The filter element body 2 is sleeved on the support cylinder 1.1 and covers the vent hole 1.1.1.

[0037] Compressed air exiting the screw compressor head carries oil droplets of varying sizes. Larger droplets are separated by the oil-gas separator, while smaller droplets must be filtered by the filter material of the oil-gas separator filter element. Existing oil-gas separator filter elements are integrated, requiring replacement of the entire element after prolonged use, resulting in high maintenance costs. To address the issue of excessive replacement and maintenance costs associated with integrated oil-gas separator filter elements, a separate oil-gas separator filter element is proposed, which reduces maintenance costs.

[0038] The oil-gas separator filter element in the above embodiment only requires replacement of the filter element body 2 on the filter element support 1, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body 2 is mounted on the support cylinder 1.1, making replacement convenient and reducing the difficulty of manual operation.

[0039] The filter element body 2 filters small oil droplets through the filter material. The filter element body 2 is composed of filter material and is fixed to the outer wall of the support cylinder 1.1 by means of bonding or other methods.

[0040] The filter element support 1 supports the filter element body 2 through the support cylinder 1.1, and the vent holes 1.1.1 are evenly distributed on the side wall of the support cylinder 1.1.

[0041] Further optimizations were made to filter element holder 1, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the filter element support 1 also includes a connecting part 1.2 disposed on the support cylinder 1.1, and the support cylinder 1.1 is fixed inside the oil-gas separator through the connecting part 1.2. The connecting part 1.2 is fixed inside the oil-gas separator so that the support cylinder 1.1 and the filter element body 2 are fixedly disposed inside the oil-gas separator.

[0042] Preferably, the connecting part 1.2 is a connecting flange provided on the outer wall of the support cylinder 1.1, and the connecting flange is erected and fixed on the oil-gas separator.

[0043] Further optimizations were made to the filter body 2, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the outer wall of the support cylinder 1.1 mates with the inner wall of the filter element body 2, and the filter element body 2 and the support cylinder 1.1 are bonded together. The connection method between the filter element body 2 and the support cylinder 1.1 is not limited to bonding. Other embodiments include: a limiting sleeve is fitted on the lower outer wall of the support cylinder 1.1, and the filter element body 2 is limited on the support cylinder 1.1 by the limiting sleeve.

[0044] Further optimization of the filter element body, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the outer peripheral wall of the filter element body 2 is a conical surface, wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall compared to a vertically oriented one. If the outer peripheral wall of the filter element body 2 were vertically oriented, the separated oil would slide down its surface, reducing the separation efficiency of the oil-gas mixture constantly impacting the outer peripheral wall. This would cause an oil film to form on the outer peripheral wall, resulting in a large area of ​​oil-gas mixture impacting the oil film and reducing the oil-gas separation efficiency. With the conical outer peripheral wall, less oil slides down the outer peripheral wall due to its own gravity, preventing the formation of a thick oil layer and improving the oil-gas separation efficiency, thus enhancing the filtration effect of the oil-gas separator filter element.

[0045] Further optimizations were made to the support sleeve 1.1, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the bottom center of the support cylinder 1.1 is recessed to form an oil collection groove 1.4. The oil collection groove 1.4 is used to collect the oil inside the support cylinder 1.1. The bottom end of the support cylinder 1.1 is provided with an oil drain hole 1.5, which is located inside the oil collection groove 1.4.

[0046] In summary, this utility model has the following beneficial effects: During use, only the filter element body 2 on the filter element bracket 1 needs to be replaced, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body 2 is fitted onto the bracket cylinder 1.1, making replacement convenient and reducing the difficulty of manual operation.

[0047] Example 2, as Figure 5 , Figure 6 The filter element of a split-type oil-gas separator shown includes a filter element support 1 disposed in the oil-gas separator and a filter element body 2 sleeved on the filter element support 1. The filter element support 1 includes a support cylinder 1.1 with the opening facing upward. A vent hole 1.1.1 is provided on the side wall of the support cylinder 1.1. The filter element body 2 is sleeved on the support cylinder 1.1 and covers the vent hole 1.1.1.

[0048] In this embodiment, a guide sleeve 3 is inserted inside the support cylinder 1.1. The guide sleeve 3 has perforations 3.1 on its sidewall, with the openings of the perforations 3.1 angled downwards or upwards. Multiple perforations 3.1 are evenly distributed on the sidewall of the guide sleeve 3. The angled openings of the perforations 3.1 allow gas to enter the inner cavity of the support cylinder 1.1 from the guide sleeve 3, forming a vortex. This vortex promotes further oil-gas separation, thereby improving the filtration effect of the oil-liquid separator filter element.

[0049] The filter element support 1 is further optimized by including a connecting part 1.2 disposed on the support cylinder 1.1. The support cylinder 1.1 is fixed inside the oil-gas separator via the connecting part 1.2. The connecting part 1.2 is fixed inside the oil-gas separator so that the support cylinder 1.1 and the filter element body 2 are fixedly disposed inside the oil-gas separator.

[0050] Preferably, the connecting part 1.2 is a connecting flange provided on the outer wall of the support cylinder 1.1, and the connecting flange is erected and fixed on the oil-gas separator.

[0051] The filter element body 2 is further optimized by fitting the outer wall of the support cylinder 1.1 with the inner wall of the filter element body 2, thus bonding the filter element body 2 and the support cylinder 1.1 together. The connection method between the filter element body 2 and the support cylinder 1.1 is not limited to bonding; other implementation methods include: a limiting sleeve is fitted on the lower outer wall of the support cylinder 1.1, and the filter element body 2 is limited on the support cylinder 1.1 by the limiting sleeve.

[0052] The filter element body is further optimized, with its outer peripheral wall being a conical surface that is wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall compared to a vertically oriented one. If the outer peripheral wall of the filter element body is vertical, the separated oil slides down its surface, reducing the separation efficiency of the oil-gas mixture constantly impacting the outer peripheral wall. This leads to the formation of an oil film on the outer peripheral wall, causing a large area of ​​the oil-gas mixture to impact the film, further reducing separation efficiency. With the conical outer peripheral wall, less oil slides down the surface due to gravity, preventing the formation of a thick oil layer and improving separation efficiency, thus enhancing the filtration effect of the oil-gas separator filter element.

[0053] The support cylinder 1.1 is further optimized by recessing the middle of its bottom end to form an oil collection groove 1.4. The oil collection groove 1.4 is used to collect the oil inside the support cylinder 1.1. An oil drain hole 1.5 is provided at the bottom end of the support cylinder 1.1, and the oil drain hole 1.5 is located inside the oil collection groove 1.4.

[0054] In summary, this utility model has the following beneficial effects: During use, only the filter element body 2 on the filter element bracket 1 needs to be replaced, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body 2 is fitted onto the bracket cylinder 1.1, making replacement convenient and reducing the difficulty of manual operation.

[0055] Example 3, as Figure 7 The filter element of a split-type oil-gas separator shown includes a filter element support 1 disposed in the oil-gas separator and a filter element body 2 sleeved on the filter element support 1. The filter element support 1 includes a support cylinder 1.1 with the opening facing upward. A vent hole 1.1.1 is provided on the side wall of the support cylinder 1.1. The filter element body 2 is sleeved on the support cylinder 1.1 and covers the vent hole 1.1.1.

[0056] In this embodiment, the filter element support 1 further includes a filter cover 1.3 sleeved outside the support cylinder 1.1. The filter cover 1.3 has a through hole 1.3.1 on its side wall, forming a downward-facing receiving groove between the filter cover 1.3 and the support cylinder 1.1. The filter element body 2 is inserted into the receiving groove. The filter cover 1.3 covers the filter element body 2, protecting it. The oil-gas mixture directly impacts the filter cover 1.3, reducing the formation of an oil film on the filter element body 2.

[0057] The filter shroud 1.3 has been further optimized, with its outer peripheral wall now featuring a conical surface that is wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall of the filter shroud compared to a vertically oriented one. If the outer peripheral wall of the filter shroud 1.3 were vertically oriented, the separated oil would slide down its surface, reducing the separation efficiency of the oil-gas mixture constantly impacting the outer peripheral wall. This would lead to the formation of an oil film on the outer peripheral wall, causing a large area of ​​the oil-gas mixture to impact the film, thus reducing the oil-gas separation efficiency. With the conical surface design, less oil slides down the outer peripheral wall due to its own gravity, preventing the formation of a thick oil layer and improving the oil-gas separation efficiency, thereby enhancing the filtration effect of the oil-gas separator filter element.

[0058] Preferably, the inner wall of the receiving groove is cylindrical, and the filter element body 2 is cylindrical, which facilitates the insertion of the filter element body 2 into the receiving groove.

[0059] Specifically, the filter cover 1.3 and the support cylinder 1.1 are coaxially arranged, and both the filter cover 1.3 and the support cylinder 1.1 are mounted on the connecting part 1.2 and fixed inside the oil-gas separator through the connecting part 1.2. There are several ways to fix the filter cover 1.3 to the connecting part 1.2. For example, the filter cover 1.3 can be directly welded to the connecting part 1.2.

[0060] The filter element support 1 is further optimized by including a connecting part 1.2 disposed on the support cylinder 1.1. The support cylinder 1.1 is fixed inside the oil-gas separator via the connecting part 1.2. The connecting part 1.2 is fixed inside the oil-gas separator so that the support cylinder 1.1 and the filter element body 2 are fixedly disposed inside the oil-gas separator.

[0061] Preferably, the connecting part 1.2 is a connecting flange provided on the outer wall of the support cylinder 1.1, and the connecting flange is erected and fixed on the oil-gas separator.

[0062] The filter element body 2 is further optimized by fitting the outer wall of the support cylinder 1.1 with the inner wall of the filter element body 2, thus bonding the filter element body 2 and the support cylinder 1.1 together. The connection method between the filter element body 2 and the support cylinder 1.1 is not limited to bonding; other implementation methods include: a limiting sleeve is fitted on the lower outer wall of the support cylinder 1.1, and the filter element body 2 is limited on the support cylinder 1.1 by the limiting sleeve.

[0063] The filter element body is further optimized, with its outer peripheral wall being a conical surface that is wider at the top and narrower at the bottom. This conical surface accelerates the deposition of oil on the outer peripheral wall compared to a vertically oriented one. If the outer peripheral wall of the filter element body is vertical, the separated oil slides down its surface, reducing the separation efficiency of the oil-gas mixture constantly impacting the outer peripheral wall. This leads to the formation of an oil film on the outer peripheral wall, causing a large area of ​​the oil-gas mixture to impact the film, further reducing separation efficiency. With the conical outer peripheral wall, less oil slides down the surface due to gravity, preventing the formation of a thick oil layer and improving separation efficiency, thus enhancing the filtration effect of the oil-gas separator filter element.

[0064] The support cylinder 1.1 is further optimized by recessing the middle of its bottom end to form an oil collection groove 1.4. The oil collection groove 1.4 is used to collect the oil inside the support cylinder 1.1. An oil drain hole 1.5 is provided at the bottom end of the support cylinder 1.1, and the oil drain hole 1.5 is located inside the oil collection groove 1.4.

[0065] In summary, this utility model has the following beneficial effects: During use, only the filter element body 2 on the filter element bracket 1 needs to be replaced, eliminating the need to replace the entire oil-gas separator filter element, thus reducing the replacement and maintenance costs of the oil-gas separator filter element. Furthermore, the filter element body 2 is fitted onto the bracket cylinder 1.1, making replacement convenient and reducing the difficulty of manual operation.

[0066] 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. A separable oil and gas separator cartridge, characterized by, The filter core support comprises a support cylinder with an opening facing upward, and a vent hole is arranged on the side wall of the support cylinder; the filter core body is sleeved on the support cylinder and covers the vent hole.

2. The separable oil and gas separator cartridge of claim 1, wherein, The filter core support further comprises a connecting part arranged on the support cylinder, and the support cylinder is fixed in the oil-gas separator through the connecting part.

3. A separable oil and gas separator cartridge according to claim 1 or 2, characterized in that The outer wall of the support cylinder cooperates with the inner wall of the filter core body, and the filter core body and the support cylinder are bonded.

4. The separable oil and gas separator cartridge of claim 1 or 2, wherein, The outer peripheral wall of the filter core body is a conical surface that is large at the top and small at the bottom.

5. The separable oil and gas separator cartridge of claim 1 or 2, wherein, A guide sleeve is inserted in the support cylinder, and a punch hole is arranged on the side wall of the guide sleeve, with the opening of the punch hole being arranged obliquely downward or obliquely upward.

6. The separable oil and gas separator cartridge of claim 2, wherein, The filter core support further comprises a filter cover sleeved on the outside of the support cylinder, a through hole is arranged on the side wall of the filter cover, an accommodation groove with an opening facing downward is formed between the filter cover and the support cylinder, and the filter core body is inserted in the accommodation groove.

7. A separable oil and gas separator cartridge according to claim 6, characterized in that The filter cover and the support cylinder are coaxially arranged, and the filter cover and the support cylinder are both arranged on the connecting part and fixed in the oil-gas separator through the connecting part.

8. The separable oil-air separator cartridge according to claim 1 or 2 or 6 or 7, characterized in that, The bottom end of the support cylinder is concave in the middle to form an oil collecting groove.

9. The separable oil and gas separator cartridge of claim 8, wherein, An oil discharge hole is arranged at the bottom end of the support cylinder, and the oil discharge hole is located in the oil collecting groove.

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