CN213823875U - Filter device - Google Patents
Filter device Download PDFInfo
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- CN213823875U CN213823875U CN202022589703.6U CN202022589703U CN213823875U CN 213823875 U CN213823875 U CN 213823875U CN 202022589703 U CN202022589703 U CN 202022589703U CN 213823875 U CN213823875 U CN 213823875U
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- filter screen
- bending
- borduring
- edge
- filter
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Abstract
The utility model provides a filtering device, it includes filter screen support, at least one deck filter screen and the clamping ring of borduring. At least one layer of filter screen is arranged on one side of the filter screen bracket. The clamping ring of borduring includes the somatic part and bordures the portion of bending and somatic part and bordures the integrated into one piece of the portion of bending, form the storage tank of opening towards filter screen support center between the somatic part and the portion of bending of borduring, the edge of at least one deck filter screen stretches into the storage tank, in the somatic part and the crimping of the portion of bending of borduring are in order to be fixed in the storage tank with at least one deck filter screen, the portion welded connection of bending of borduring in filter screen support, the thickness of the portion of bending of borduring is greater than or equal to the welding and is bordured the penetration that forms in the portion of bending.
Description
Technical Field
The utility model relates to a accessory for refrigeration plant, and in particular to filter equipment.
Background
The existing oil separator comprises a tank body, an air inlet pipe assembly, an air outlet pipe assembly, a filtering device and a rotary separation device. In the current filtering apparatus, the edge of the filtering net 200 is fixed on the filtering net support 100 by the press ring 300, and the press ring 300 and the filtering net support 100 are welded by means of resistance welding to realize the fixing of the filtering net 200, as shown in fig. 1 and chinese patent CN 204460870U. In the two structures, the welding point 400 formed by resistance welding between the compression ring and the filter screen bracket directly contacts the filter screen, and because the diameter of the mesh wire of the filter screen is smaller, part of the mesh wire is easily burnt by heat in the welding process, so that welding slag is generated. Especially, when the filtering device has more than two layers of filtering nets with different diameters, the fine wire net is burnt and generates a large amount of welding slag on the premise of ensuring the firmness of welding spots due to different heat born by different diameters of the net wires, and the welding heat is very difficult to control. When the filtering device is used, welding slag generated in the welding process can enter the oil separator, the performance of the oil separator is affected, and even the oil separator can be blocked in severe cases.
In addition, in the conventional filter device shown in fig. 1, the edge of the filter screen is exposed. In the use process, the mesh is easy to fall off from the exposed edge, so that the pressure bearing performance of the filter screen is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art not enough, provide a filter equipment.
In order to achieve the above object, the utility model provides a filter device, it includes filter screen support, at least one deck filter screen and the clamping ring of borduring. At least one layer of filter screen is arranged on one side of the filter screen bracket. The clamping ring of borduring includes the somatic part and bordures the portion of bending and somatic part and bordures the integrated into one piece of the portion of bending, form the storage tank of opening towards filter screen support center between the somatic part and the portion of bending of borduring, the edge of at least one deck filter screen stretches into the storage tank, in the somatic part and the crimping of the portion of bending of borduring are in order to be fixed in the storage tank with at least one deck filter screen, the portion welded connection of bending of borduring in filter screen support, the thickness of the portion of bending of borduring is greater than or equal to the welding and is bordured the penetration that forms in the portion of bending.
According to the utility model discloses an embodiment, the mode welded connection of the portion of bending of borduring through resistance spot welding in filter screen support, the portion of bending of borduring and filter screen support between have a plurality of resistance weld spots along circumference evenly distributed.
According to the utility model discloses an embodiment, the length of the portion of bending of borduring is greater than or equal to the length of this somatic part, and the length of the portion of bending of borduring is for the free tip to the distance of the department of bending of the portion of bending of borduring, and the length of this somatic part is the free tip to the distance of the department of bending of this somatic part.
According to the utility model discloses an embodiment has a plurality of oilholes along circumference evenly distributed on the filter screen support, on filter screen support's central projection face, is provided with a resistance solder joint between two adjacent oilholes.
According to the utility model discloses an embodiment, filter equipment includes two-layer filter, and the second filter screen is hugged closely and is set up in the outside of first filter screen, and the silk footpath of first filter screen is greater than the silk footpath of second filter screen and the mesh number of first filter screen is less than the mesh number of second filter screen.
According to the utility model discloses an embodiment, the middle part of at least one deck filter screen forms the filter house to the protruding one side of keeping away from filter screen support, and the edge of at least one deck filter screen forms connecting portion after bending, and connecting portion stretch into and the crimping is fixed in the storage tank.
To sum up, in the filter screen device provided by the utility model, the body part and the edge-covering bending part of the edge-covering compression ring form a containing groove for containing the edge of the filter screen, and the edge of the filter screen extends into and is fixed in the containing groove by compression; the edge of the filter screen is completely wrapped by the wrapping compression ring and cannot be exposed, and therefore the problem that the screen wire falls off due to the fact that the edge of the filter screen is exposed is effectively solved. Furthermore, the edge-covering bending part is welded on the filter screen support, and the thickness of the edge-covering bending part is greater than or equal to the fusion depth formed by welding on the edge-covering bending part. The welding spot that forms when this setting makes the portion of bending of borduring and filter screen support welding does not contact the filter screen, and the filter screen can not burnt out and also any welding slag produces. The oil separator effectively solves the problem that the performance of the oil separator is seriously damaged due to the fact that a filter screen is burnt and welding slag is generated when the filter screen type electric resistance welding is penetrated in the prior art.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of a filter holder, a filter screen and a press ring in a conventional filter device.
Fig. 2 is a schematic structural diagram of a filtering apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 2.
Fig. 4 is an enlarged schematic view of fig. 3 at B.
Fig. 5 is a schematic structural view of the hemming ring.
Detailed Description
As shown in fig. 2 to 5, the filtering apparatus provided in this embodiment includes a filter screen bracket 1, at least one layer of filter screen, and a binding compression ring 3. At least one layer of filter screen is arranged on one side of the filter screen bracket 1. The binding compression ring 3 comprises a body part 31 and a binding bending part 32 which are integrally formed, an accommodating groove 30 with an opening facing the center of the filter screen support is formed between the body part 31 and the binding bending part 32, the edge of at least one layer of filter screen extends into the accommodating groove 30, the body part 31 and the binding bending part 32 are in compression joint to fix at least one layer of filter screen in the accommodating groove 30, the binding bending part 32 is in welding connection with the filter screen support 1, and the thickness H of the binding bending part 32 is larger than or equal to the fusion depth formed by welding on the binding bending part 32.
The compression joint is a mechanical cold compression joint, and two or more layers of materials with the same or different materials and different plate thicknesses are connected in a cold extrusion mode to form a connection mode of a connection point.
In the filtering device provided by the embodiment, on one hand, an accommodating groove 30 for fixing the edge of at least one layer of filter screen is formed between the edge-covering bent part 32 and the body part 31, so that the connection between the at least one layer of filter screen and the edge-covering compression ring 3 is realized; on the other hand, the edge-covered bent part 32 is welded with the filter screen bracket 1 to connect the edge-covered press ring 3 with the filter screen bracket 1. The indirect connection between at least one deck filter screen and the filter screen support 1 has been realized in the setting of the portion of bending 32 of borduring, and the solder joint contactless filter screen between the portion of bending 32 of borduring and the filter support 1 ensures that can not produce any welding slag in the welding process to fine solution among the prior art filter screen welding slag blockage oil separator's problem. In addition, the semi-enclosed accommodating groove 30 formed by the body part 31 and the edge-covering bent part 32 also effectively solves the problem of mesh wire falling caused by the exposed edge of the filter screen.
In this embodiment, the edge-covered bent portion 32 is welded to the filter screen bracket 1 by resistance spot welding, a plurality of resistance welding spots 10 uniformly distributed along the circumferential direction of the filter screen bracket 1 are arranged between the edge-covered bent portion 32 and the filter screen bracket 1, and the penetration of the resistance welding spots 10 on the edge-covered bent portion 32 is smaller than the thickness H of the edge-covered bent portion 32. However, the present invention is not limited to this. In other embodiments, the edge of the folded edge and the edge of the filter screen bracket can be welded by arc welding. Preferably, the thickness H of the edge-folded part 32 is 1.2 mm.
After the binding compression ring 3 and the filter screen bracket 1 are assembled, the binding bent part 32 is covered by the body part 31 and at least one layer of the filter screen 2, and the length of the binding bent part cannot be seen by welding personnel. During resistance welding, two ends of the electrode are respectively placed on the body part 31 and the filter screen support 1, if the length of the edge-covered bent part is short, a welder needs to strictly control the position of the electrode during welding so as to avoid the electrode from deviating inwards and the welding point from contacting the filter screen. In order to facilitate the operation of the welder, in the embodiment, as shown in fig. 5, the length L2 of the folded edge portion is set to be greater than the length L1 of the main body portion, and the folded edge portion 32 completely isolates the filter screen, so that the welding point cannot contact the filter screen no matter the electrode is placed at any position of the main body portion 31. The length of the folded edge portion 32 extends toward the center of the filter screen bracket 1, and the length L2 of the folded edge portion is set in consideration of interference with air flow. Preferably, the length L2 of the folded-over edge is 1 mm longer than the length L1 of the main body. However, the present invention is not limited to this. In other embodiments, the length of the edge-covering bending part can be lengthened as much as possible on the premise of not influencing air flow interference; or the length of the edge-covering bent part is equal to that of the body part.
In this embodiment, the length L2 of the folded-edge portion is the distance from the free end of the folded-edge portion 32 to the folded portion K, and the length L1 of the main body portion is the distance from the free end of the main body portion 31 to the folded portion K.
In this embodiment, the strainer holder 1 has a plurality of oil holes 11 uniformly distributed along its circumference, and a resistance welding spot is disposed between two adjacent oil holes 11 on the central projection plane of the strainer holder 1. Specifically, in the present embodiment, the strainer holder 1 has eight oil holes 11, eight resistance welding spots 10 are also provided between the corresponding edge-bending portion 32 and the strainer holder 1, and the eight resistance welding spots 10 are distributed among the eight oil holes 11 at intervals. However, the present invention is not limited to this.
In this embodiment, the filtering device includes two layers of filtering nets with the same size, and the second filtering net 22 is closely attached to the outer side of the first filtering net 21. The middle parts of the two layers of filter screens are protruded to one side far away from the filter screen support 1 to form a filter part 201, the edges of the two layers of filter screens are bent to form a connecting part 202, and the connecting part 202 extends into and is fixed in the accommodating groove 30. However, the present invention is not limited to this. In other embodiments, the filter screen may be horizontal.
In this embodiment, the wire diameter of the first filter 21 is larger than that of the second filter 22, and the mesh number of the first filter 21 is smaller than that of the second filter 22. Specifically, the first filter 21 is 20 meshes by 20 meshes, and the filament diameter is 0.5 mm; the second screen 22 was 100 mesh by 100 mesh with a wire diameter of 0.1 mm. However, the present invention is not limited to this. In other embodiments, the filtering device may include only one layer of filtering net or more than three layers of filtering nets.
To sum up, in the filter screen device provided by the utility model, the body part and the edge-covering bending part of the edge-covering compression ring form a containing groove for containing the edge of the filter screen, and the edge of the filter screen extends into and is fixed in the containing groove by compression; the edge of the filter screen is completely wrapped by the wrapping compression ring and cannot be exposed, and therefore the problem that the screen wire falls off due to the fact that the edge of the filter screen is exposed is effectively solved. Furthermore, the edge-covering bending part is welded on the filter screen support, and the thickness of the edge-covering bending part is greater than or equal to the fusion depth formed by welding on the edge-covering bending part. The welding spot that forms when this setting makes the portion of bending of borduring and filter screen support welding does not contact the filter screen, and the filter screen can not burnt out and also any welding slag produces. The oil separator effectively solves the problem that the performance of the oil separator is seriously damaged due to the fact that a filter screen is burnt and welding slag is generated when the filter screen type electric resistance welding is penetrated in the prior art.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of other modifications and variations without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A filter device, comprising:
a screen support;
at least one layer of filter screen arranged on one side of the filter screen bracket;
the clamping ring of borduring, including this somatic part and the portion of bending of borduring and this somatic part and the integrated into one piece of the portion of bending of borduring, form the storage tank of opening towards filter screen support center between this somatic part and the portion of bending of borduring, the edge of at least one deck filter screen stretches into the storage tank, this somatic part and the crimping of the portion of bending of borduring are in order to be fixed in the storage tank with at least one deck filter screen, the portion welded connection of bending of borduring in filter screen support, the thickness of the portion of bending of borduring is greater than or equal to the welding and is wrapped the penetration that forms in the portion of bending.
2. The filter device according to claim 1, wherein the edge-covered bent part is welded to the filter screen bracket by means of resistance spot welding, and a plurality of resistance welding spots are uniformly distributed along the circumferential direction between the edge-covered bent part and the filter screen bracket.
3. The filter device of claim 2, wherein the length of the wrapped bend is greater than or equal to the length of the body portion, the length of the wrapped bend is the distance from the free end of the wrapped bend to the bend, and the length of the body portion is the distance from the free end of the body portion to the bend.
4. The filtering device according to claim 2, wherein the strainer bracket has a plurality of oil holes uniformly distributed along a circumferential direction, and a resistance welding point is disposed between two adjacent oil holes on a central projection plane of the strainer bracket.
5. The filter device according to claim 1, wherein the filter device comprises two layers of filter screens, the second filter screen is closely attached to the outer side of the first filter screen, the wire diameter of the first filter screen is larger than that of the second filter screen, and the mesh number of the first filter screen is smaller than that of the second filter screen.
6. The filtering device according to claim 1 or 5, wherein the middle part of at least one layer of the filter screen protrudes to one side far away from the filter screen bracket to form a filtering part, the edge of at least one layer of the filter screen is bent to form a connecting part, and the connecting part extends into the accommodating groove and is fixed in the accommodating groove in a compression joint mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022589703.6U CN213823875U (en) | 2020-11-10 | 2020-11-10 | Filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022589703.6U CN213823875U (en) | 2020-11-10 | 2020-11-10 | Filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213823875U true CN213823875U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022589703.6U Active CN213823875U (en) | 2020-11-10 | 2020-11-10 | Filter device |
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| CN (1) | CN213823875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130134A (en) * | 2022-01-04 | 2022-03-04 | 高陵蓝晓科技新材料有限公司 | Filter screen and resin column with same |
| WO2023035977A1 (en) * | 2021-09-07 | 2023-03-16 | 浙江盾安人工环境股份有限公司 | Liquid storage device, filter screen assembly and preparation method therefor |
-
2020
- 2020-11-10 CN CN202022589703.6U patent/CN213823875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035977A1 (en) * | 2021-09-07 | 2023-03-16 | 浙江盾安人工环境股份有限公司 | Liquid storage device, filter screen assembly and preparation method therefor |
| CN114130134A (en) * | 2022-01-04 | 2022-03-04 | 高陵蓝晓科技新材料有限公司 | Filter screen and resin column with same |
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