CN216856067U - Filter element assembly with safety valve - Google Patents

Abstract

The utility model discloses a filter element assembly with a safety valve, belonging to the technical field of oil-gas separator accessories and solving the problem of use reliability of oil-gas separation, and the key point of the technical scheme is that the filter element assembly comprises a cage framework, a filter cotton outer coating and a safety valve assembly, wherein the cage framework is annular and is sheathed and coated by the filter cotton outer coating on the outer side, the safety valve assembly is fixedly clamped and connected at the top of the cage framework, the safety valve assembly comprises a top cover, a valve block, a valve post, a bracket and a spring, an assembly groove is arranged on the top cover, an assembly frame is arranged on the assembly groove and is provided with a through groove and a through hole, one end of the valve post is fixedly connected with the center of the valve block and penetrates out of the through hole, the valve block covers the assembly groove, the other end of the valve post is fixedly connected with the bracket, one end of the spring is abutted against the assembly frame and the other end of the spring is abutted against the bracket, the effects of improving the use safety, reliability and durability of the structure are achieved.

Description

Filter element assembly with safety valve

Technical Field

The utility model relates to the field of oil-gas separator accessories, in particular to a filter element assembly with a safety valve.

Background

At present, Chinese patent application No. 201320260694.3 discloses a filter element for an oil-gas separator, which belongs to an oil-gas filtering device. The oil stain separator mainly solves the technical problems that an existing oil stain separator is low in separation efficiency, long in separation time, free of filter element, simple in structure, high in cost and the like. The key points of the technical scheme are as follows: the outer ring of the top cover is provided with a top cover through hole, the middle part below the top cover is in matched sealing connection with the top of the filter cylinder, a filter screen cover plate, a filter screen support A, a filter screen support B and a filter screen gland are arranged in the filter cylinder, the upper barrel wall of the filter cylinder is provided with a filter cylinder outlet A and a filter cylinder outlet A, the lower part of the filter cylinder is provided with a filter cylinder oil drainage hole, and the lower part of the filter cylinder is in sealed matching connection with the upper side of the middle part of the bottom cover.

It is visible based on above-mentioned disclosed technical scheme, can set up the filter core in oil and gas separator, but above-mentioned filter core structure adopts the filter screen, and some tiny oil gas of such filtration mode can't separate to can't ensure to the change in later stage and the fail safe nature of work, mainly lie in oil gas in filtering process, atmospheric pressure is higher when straining a section of thick bamboo, causes to burst, reduces life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, at least solves the technical problems in the related art to a certain extent, and provides a filter element assembly with a safety valve, which has the advantages of safe and reliable use and convenient replacement operation.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a filter element group spare with relief valve, includes cage skeleton, crosses filter pulp surrounding layer and relief valve subassembly, the cage skeleton is the annular and cup joints the cladding in the outside by crossing the filter pulp surrounding layer, at the fixed joint relief valve subassembly in the top of cage skeleton, relief valve subassembly includes top cap, valve block, valve column, bracket and spring, be provided with the assembly groove on the top cap, be provided with the assembly jig on the assembly groove and be formed with logical groove and through-hole, the center of the one end fixed connection valve block of valve column and follow through-hole department wears out, the valve block covers on the assembly groove, the other end fixed connection bracket of valve column, spring one end is contradicted on the assembly jig and the other end is contradicted on the bracket.

Preferably, the assembly groove and the opposite surface of the valve plate are provided with annular bulges, and the annular bulges are abutted to the edge position of the bottom surface of the valve plate.

Preferably, the bracket and the valve column are fixedly connected through threads or fixedly connected through clamping grooves.

Preferably, still including the base, be provided with the inlet channel of side direction on the base, inlet channel's export is provided with the annular and builds the high platform, the outside of building the high platform is provided with the pedestal that the spacing joint of round confession cage skeleton, leave the breach on the pedestal.

Preferably, a plurality of support columns are circumferentially distributed on the outer side of the pedestal, and the support columns are used for supporting the bottom of the filter cotton outer cladding layer.

Preferably, an oil discharge hole is formed in the lower portion of the upper surface of the base, the oil discharge hole is communicated with the air inlet channel, and the bottom of the air inlet channel is of a slope structure.

Compared with the background technology, the technical effects of the utility model are mainly reflected in the following aspects:

1. at first, play the support of medial surface through cage skeleton texture to crossing the cotton surrounding layer, it can filter the separation to oil gas to cross the cotton surrounding layer, general oil gas gets into from the inboard of crossing the cotton surrounding layer, this moment because the top is fixed with relief valve assembly, when atmospheric pressure is less, then the oil gas is most to arrive the outside through crossing the cotton, and if oil gas pressure is great, when the volume is more, this moment, in order to protect the cotton surrounding layer of crossing, avoid excessive inflation, then utilize relief valve assembly to realize the pressure release. The pressure relief working principle is that when the air pressure is large, the elastic force of the spring is overcome to enable the valve plate to float to generate a gap, so that oil gas can be discharged from the through groove, and the air pressure is reduced. Therefore, the use reliability can be greatly improved;

2. the position of the bracket on the valve column can be adjusted, so that the initial elastic potential energy of the spring can be changed, and later-stage use and adjustment are facilitated;

3. the base in the cooperation can further improve the firm degree of structure, and overall structure assembly is simple, convenient to use to have the effect that fluid backward flow was collected.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a side view of the structure in the example;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;

fig. 4 is an exploded view of the structure in the example.

Reference numerals are as follows: 1. a cage framework; 2. a cotton filtering outer coating; 3. a relief valve assembly; 31. a top cover; 311. assembling a groove; 312. a through groove; 313. a through hole; 314. an annular projection; 32. a valve plate; 33. a spool; 34. a bracket; 35. a spring; 4. a base; 41. an air intake passage; 42. building a high platform; 43. a pedestal; 44. a notch; 45. a pillar; 46. an oil drain hole; 47. a ramp structure.

Detailed Description

The following detailed description of the present invention is provided to facilitate the understanding and appreciation of the technical aspects of the present invention in connection with the accompanying drawings.

The first embodiment is as follows:

a filter element assembly with a safety valve, as shown in reference to figures 1, 2 and 3, comprises a cage framework 1, a filter cotton cladding 2 and a safety valve assembly 3. Because the main material of the filter cotton outer cladding layer 2 is filter cotton, the texture is relatively soft, and the inner side of the cage framework 1 is used for supporting, the annular structure can be effectively kept, and the assembly are convenient. Therefore, the cage framework 1 is annular and is sleeved and covered by the filter cotton outer covering layer 2. The safety valve component 3 is fixedly clamped at the top of the cage framework 1.

As understood with reference to fig. 3 and 4 in conjunction with each other, the safety valve assembly 3 includes a top cover 31, a valve plate 32, a spool 33, a bracket 34, and a spring 35. The nail lid is that the joint is fixed on cage skeleton 1, just so makes the inside cavity of filter pulp surrounding layer 2 airtight, and oil gas can get into from the bottom, permeates out through filter pulp surrounding layer 2 to reach the filter effect. Specifically, the top cover 31 of the safety valve assembly 3 is provided with an assembling groove 311, the assembling groove 311 is provided with an assembling frame and is formed with a through groove 312 and a through hole 313, the through hole 313 is located at the center, and the through grooves 312 are distributed circumferentially. One end of the spool 33 is fixedly coupled to the center of the valve sheet 32 and passes through the through hole 313, and the valve sheet 32 is covered on the fitting groove 311. The other end of the spool 33 is fixedly attached to the bracket 34, and one end of the spring 35 abuts against the mounting bracket and the other end abuts against the bracket 34.

Based on the structure, the oil gas directly enters from the bottom of the filter cotton outer cladding layer 2 and is filtered by the filter cotton outer cladding layer 2. Get into from the inboard of crossing filter pulp surrounding layer 2 when oil gas, because the top is fixed with relief valve assembly 3 this moment, when atmospheric pressure is less, then the oil gas is most to arrive the outside through crossing the filter pulp, and if oil gas pressure is great, when the volume is more, this moment, in order to protect filter pulp surrounding layer 2, avoid excessive expansion, then utilize relief valve assembly 3 to realize the pressure release. The pressure relief working principle is that when the air pressure is large, the valve plate 32 floats to generate a gap by overcoming the elastic force of the spring 35, so that oil gas can be discharged from the through groove 312, and the air pressure is reduced. Therefore, the use reliability can be greatly improved.

Based on the above scheme, further optimizing the design improvement, can be provided with annular protrusion 314 on the assembly groove 311 and on the opposite side of valve plate 32, annular protrusion 314 contradicts in the bottom surface edge position of valve plate 32. The advantage of doing so is that the oil gas is difficult for causing the adhesion to valve block 32, through this annular arch 314, can reduce area of contact, and is more nimble like this to the activity of valve block 32.

The bracket 34 and the spool 33 are fixed by screw connection or by snap-in connection. Later, if the elasticity of the spring 35 changes or the spring 35 needs to be replaced, or when the spring 35 is not easily matched, the position of the bracket 34 can be adjusted.

Example two:

the base 4 can be designed based on the solution of the first embodiment. Regarding the structure of the base 4, and fitting on the first embodiment, the second embodiment of the present solution is formed. The first embodiment can be used alone, and the second embodiment is further designed.

The specific difference is that the upper base 4 is assembled. Referring to fig. 3 and 4, a lateral air inlet channel 41 is arranged on the base 4, an annular building platform 42 is arranged at an outlet of the air inlet channel 41, a circle of pedestal 43 for limiting and clamping the cage framework 1 is arranged outside the building platform 42, and a gap 44 is reserved on the pedestal 43. After the air is guided through the air inlet channel 41, the oil is diffused inside the filter cotton outer covering 2 of the embodiment due to the temperature of the oil, and the oil is absorbed by the filter cotton outer covering 2 and accumulated in the area between the building elevation 42 and the pedestal 43 due to the influence of gravity, and is left through the gap 44. Thus, oil-gas separation and oil recovery can be realized.

A plurality of support columns 45 are circumferentially distributed on the outer side of the pedestal 43, and the support columns 45 are used for supporting the bottom of the filter cotton outer cladding layer 2. When utilizing pillar 45 to play the support to crossing filter pulp surrounding layer 2, also be convenient for cross the fluid of filter pulp surrounding layer 2 below and flow along pillar 45.

Based on the above characteristics, the lower part of the upper surface of the base 4 is provided with an oil discharge hole 46, the oil discharge hole 46 is communicated with the air inlet channel 41, and the bottom of the air inlet channel 41 is provided with a slope structure 47. Therefore, the slope structure 47 can be utilized to further guide oil, and recovery is facilitated.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims (6)

1. A filter element assembly with a safety valve is characterized in that: comprises a cage framework (1), a filter cotton outer cladding layer (2) and a safety valve component (3), the cage framework (1) is annular and is sleeved and coated by a filter cotton outer coating layer (2) at the outer side, the safety valve component (3) is fixedly clamped at the top of the cage framework (1), the safety valve component (3) comprises a top cover (31), a valve plate (32), a valve column (33), a bracket (34) and a spring (35), the top cover (31) is provided with an assembly groove (311), the assembly groove (311) is provided with an assembly frame and is provided with a through groove (312) and a through hole (313), one end of the valve column (33) is fixedly connected with the center of the valve plate (32) and penetrates out of the through hole (313), the valve plate (32) covers the assembly groove (311), the other end of the valve column (33) is fixedly connected with the bracket (34), the spring (35) abuts against the mounting bracket at one end and against the bracket (34) at the other end.

2. The cartridge assembly with safety valve of claim 1, wherein: and the assembly groove (311) and the right opposite surface of the valve plate (32) are provided with annular protrusions (314), and the annular protrusions (314) are abutted to the edge of the bottom surface of the valve plate (32).

3. The cartridge assembly with safety valve of claim 1, wherein: the bracket (34) and the valve column (33) are fixedly connected through threads or fixedly connected through clamping grooves.

4. The cartridge assembly with safety valve of claim 1, wherein: still including base (4), be provided with lateral inlet channel (41) on base (4), the export of inlet channel (41) is provided with annular build high platform (42), the outside of building high platform (42) is provided with pedestal (43) that the round supplied cage skeleton (1) spacing joint, leave breach (44) on pedestal (43).

5. The cartridge assembly with safety valve of claim 4, wherein: a plurality of support columns (45) are circumferentially distributed on the outer side of the pedestal (43), and the support columns (45) are used for supporting the bottom of the filter cotton outer cladding layer (2).

6. The filter cartridge assembly with safety valve of claim 4, wherein: an oil discharge hole (46) is formed in the lower portion of the upper surface of the base (4), the oil discharge hole (46) is communicated with the air inlet channel (41), and a slope structure (47) is arranged at the bottom of the air inlet channel (41).

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