CN210013767U

CN210013767U - Gas filter

Info

Publication number: CN210013767U
Application number: CN201920509703.5U
Authority: CN
Inventors: 娄新胜; 郭拥军; 乔国平; 郭志英
Original assignee: XINXIANG AI CLEANING TECHNOLOGY Co Ltd
Current assignee: XINXIANG AI CLEANING TECHNOLOGY Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-04
Anticipated expiration: 2029-04-16

Abstract

The utility model provides a gas filter, including a filter cylinder, a filter head, a filter element and a blowoff valve, wherein the filter head is installed at the top of the filter cylinder, a sealing ring is arranged between the filter head and the filter cylinder, the filter element is arranged in the filter cylinder, an airflow channel is arranged in the filter head, an air inlet and an air outlet are arranged at two ends of the filter head which are positioned in the airflow channel, the airflow channel is communicated with the filter element, the blowoff valve is arranged on the filter cylinder, the filter element comprises an upper end cover, a lower end cover and a filter layer, the upper end cover is installed at the top end of the filter layer, the; the outer side of the circumference of the upper end cover is provided with a fixed claw which can be clamped in a mounting hole on the inner wall of the filter cylinder; the circumference outside of the lower end cover is provided with a bulge which can move along the guide groove of the inner wall of the filter cylinder. The gas filter of the utility model has the advantages of convenient installation, increased disassembly speed and strength; the center of the lower end cover is provided with a conical structure, and when the filter layer medium is condensed and drained, the purging effect can be achieved, and the drainage speed of the filter layer is accelerated.

Description

Gas filter

Technical Field

The utility model relates to a filter field especially indicates a gas filter.

Background

At present, natural gas is used as fuel of a gas engine, and is filtered by a gas filter before entering a fuel metering valve and the engine so as to achieve the purpose of protecting precision devices and the engine. The gas filter is widely applied to gas supply systems of gas engines, and also widely applied to equipment such as compressors, gas filling machines, gas storage and transportation and the like. Are usually installed at the inlet end of a pressure reducing valve, a pressure relief valve or other equipment to eliminate impurities in the medium so as to protect the equipment from normal use and reduce the maintenance cost of the equipment.

The existing gas filter comprises a filter head, a filter element and a filter cylinder; the filter head is connected with the existing filter cylinder by adopting common threads, so that the disassembly speed is slow, the problem of excessive screwing is easy to occur when the filter head and the filter cylinder are installed, and whether the existing filter cylinder is installed in place cannot be directly judged; the filter head is in threaded connection with the filter element assembly, and the disassembly speed is low; the safety is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas filter for solve among the prior art filter installation complicated, dismantle slow and the poor problem of security of speed.

In order to achieve the above object, the utility model provides a following technical scheme:

a gas filter comprises a filter cylinder, a filter head, a filter element and a blow-down valve, wherein the filter head is installed at the top of the filter cylinder, the filter element is arranged in the filter cylinder, an air flow channel is arranged in the filter head, an air inlet and an air outlet are arranged at two ends of the air flow channel on the filter head, the air flow channel is communicated with the filter element, and the blow-down valve is arranged on the filter cylinder;

the filter element comprises an upper end cover, a lower end cover and a filter layer, the upper end cover is arranged at the top end of the filter layer, the lower end cover is arranged at the bottom end of the filter layer, and the upper end cover is arranged on the filter cylinder;

the outer side of the circumference of the upper end cover is provided with a fixed claw which can be clamped in a mounting hole on the inner wall of the filter cylinder;

a bulge is arranged on the outer side of the circumference of the lower end cover and can move along a guide groove on the inner wall of the filter cylinder;

the center of the lower end cover is of a conical structure.

Wherein, the filter head and the filter cylinder are connected by trapezoidal threads.

Wherein, the lower part of the filter cylinder adopts a polygonal structure.

Wherein, be provided with the alignment mark on the circumference outside of filter head.

The gas filter also comprises a drain valve joint, and the drain valve is connected with the filter cylinder through the drain valve joint.

Wherein the filter layer and the lower end cover are bonded by glue solution.

The filter comprises a filter head, a filter cylinder and a limiting block, wherein the filter head is provided with an internal thread, the internal thread is screwed with the external thread of the filter cylinder, and the tail part of the thread of the filter cylinder is provided with the limiting block.

Wherein, the thread tail part of the filter cylinder is provided with a groove.

Wherein, the filter cylinder with the external thread is a casting.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

in the scheme, the upper end of the gas filter is covered with the fixed claw, and the gas filter is arranged on the filter cylinder mounting hole through the fixed claw, so that the gas filter is convenient to mount; the outer side of the periphery of the lower end cover is provided with a bulge, so that the strength of the end cover is enhanced, and the guide positioning effect can be realized during assembly; the center of the lower end cover is provided with a conical structure, and when the filter layer medium is condensed and drained, the purging effect can be achieved, and the drainage speed of the filter layer is accelerated.

Drawings

FIG. 1 is a cross-sectional view of a gas filter according to the present invention;

FIG. 2 is a cross-sectional view of a filter element of a gas filter according to the present invention;

FIG. 3 is a schematic structural view of a filter element of the gas filter of the present invention;

FIG. 4 is a cross-sectional view of a filter head of the gas filter of the present invention;

FIG. 5 is a schematic structural view of a filter head of the gas filter of the present invention;

FIG. 6 is a first schematic structural view of a filter cartridge of a gas filter according to the present invention;

fig. 7 is a second schematic structural view of a filter cartridge of a gas filter according to the present invention;

FIG. 8 is an enlarged view of the blowoff valve of the gas filter of the present invention;

FIG. 9 is a cross-sectional view of the upper end cap of the gas filter of the present invention;

FIG. 10 is a top view of the upper end cap of the gas filter of the present invention;

FIG. 11 is a cross-sectional view of the lower end cap of the gas filter of the present invention;

fig. 12 is a plan view of the lower end cover of the gas filter of the present invention.

Reference numerals:

1. a seal ring; 2. an upper end cover; 3. a filtering layer; 4. a lower end cover; 5. a filter cartridge; 6. a blowoff valve; 7. a blowdown valve joint; 8. a blowoff valve sealing ring; 10. an alignment mark; 11. a filter head; 12. a limiting block; 13. mounting holes; 14. and (3) a filter element.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The utility model discloses to the problem that current filter installation is complicated, the dismantlement speed is slow and the security is poor, provide a gas filter.

As shown in fig. 1 to 11, an embodiment of the present invention provides a gas filter, including a filter cartridge 5, a filter head 11, a filter element 14 and a blowoff valve 6, where the filter head 11 is installed at the top of the filter cartridge 5, the filter element 14 is installed in the filter cartridge 5, an air flow channel is arranged inside the filter head 11, an air inlet and an air outlet are arranged at two ends of the air flow channel on the filter head 11, the air flow channel is communicated with the filter element 14, and the blowoff valve 6 is arranged on the filter cartridge 5;

the filter element 14 comprises an upper end cover 2, a lower end cover 4 and a filter layer 3, the upper end cover 2 is installed at the top end of the filter layer 3, the lower end cover 4 is arranged at the bottom end of the filter layer 3, and the upper end cover 2 is installed on the filter cartridge 5;

the outer side of the circumference of the upper end cover 2 is provided with a fixed claw which can be clamped in a mounting hole on the inner wall of the filter cylinder 5;

a protrusion is arranged on the outer side of the circumference of the lower end cover 4 and can move along a guide groove on the inner wall of the filter cartridge 5;

the center of the lower end cover 4 is in a conical structure.

The utility model discloses a filter element 14 of gas filter includes upper end cover 2, lower end cover 4 and filtering layer 3. The filter element 14 is fixed on the filter cylinder 5 through the upper end cover 2, the outer side of the circumference of the upper end cover 2 is provided with fixing claws, the filter element is arranged on the mounting hole of the filter cylinder 5 through the fixing claws, the mounting is convenient, and the number of the fixing claws is preferably 4; the outer side of the circumference of the lower end cover 4 is provided with a bulge, so that the strength of the end cover is enhanced, the guide positioning can be realized during the assembly, and the number of the bulges is preferably 4. The center of the lower end cover 4 is provided with a conical structure, and when the medium of the filter layer 3 is condensed and drained, the medium can play a role in blowing and sweeping, so that the drainage speed of the filter layer 3 is accelerated. The utility model discloses an upper end cover 2 with be provided with sealing washer 1 between filter head 11.

Wherein, the filter head 11 and the filter cartridge 5 are connected by trapezoidal threads. The internal thread on the filter head 11 is screwed with the external thread of the filter cartridge 5, and the tail part of the thread of the filter cartridge 5 is provided with a limit block 12. The thread tail part of the filter cylinder 5 is provided with a groove. The filter cartridge 5 with the external thread is a casting.

The filter cartridge 5 and the filter head 11 of the gas filter of the utility model are connected by trapezoidal thread, which can realize quick disassembly compared with the common thread; a groove is formed in the filter head 11, so that the problem of installation interference during installation of the filter cartridge 5 is effectively solved, the risk of air leakage is reduced, and the safety of a product is improved; the threaded tail part of the filter cartridge 5 is provided with the limiting block 12, so that the filter cartridge is convenient to install, the filter cartridge 5 is produced in a die-casting mode, threads are directly cast, and the processing cost is reduced.

Wherein, the lower part of the filter cylinder 5 adopts a polygonal structure.

The utility model discloses a gas filter strains a lower part of 5 and adopts polygonized structure, can tightly hold the direct mount with the hand and strain a section of thick bamboo 5, and the polygon adopts the circular arc transition with crossing department in bottom, has increased intensity, improves the product security.

Wherein, the circumference outside of the filter head 11 is provided with an alignment mark 10.

The utility model discloses a be provided with alignment mark 10 on the circumference outside of gas filter's filter head 11, compare with conventional threaded connection mode and can directly judge and strain a section of thick bamboo 5 and install in place.

Wherein, the gas filter also comprises a blow-off valve joint 7, and the blow-off valve 6 is connected with the filter cartridge 5 through the blow-off valve joint 7.

The utility model discloses a gas filter blowoff valve 6 links together through blowoff valve joint 7 with straining a section of thick bamboo 5, avoids blowoff valve 6 and strain the joint strength problem and the gas leakage problem that 5 direct links to each other produced of a section of thick bamboo, has improved the product security. The utility model discloses a be provided with sealing washer 1 between blowoff valve 6 and the blowoff valve joint 7.

Wherein, the filtering layer 3 and the lower end cover 4 are bonded by glue solution.

The utility model discloses a gas filter, after the gas got into the filter of putting filter core 14, its impurity was blockked by filter core 14, and clear gas was discharged by the filter export, when needs were maintained, need close the air supply, after the release pressure, opened blowoff valve 6, can will strain a 5 interior pollutants and arrange, when changing filter core 14, only need to strain a 5 and unpack apart, take out the filter core 14 to change again and tighten again and strain a 5 can.

In the scheme, the beneficial effects are as follows:

(1) the upper end cover 2 of the gas filter of the utility model is provided with the fixed claws, and the gas filter is arranged on the mounting holes of the filter cylinder 5 through the fixed claws, thereby facilitating the installation; the outer side of the circumference of the lower end cover 4 is provided with a bulge, so that the strength of the end cover is enhanced, and the guide positioning effect can be realized during assembly; the center of the lower end cover 4 is provided with a conical structure, and when the medium of the filter layer 3 is condensed and drained, the medium can play a role in purging, so that the drainage speed of the filter layer 3 is accelerated;

(2) the filter head 11 and the filter cartridge 5 of the gas filter of the utility model are connected by trapezoidal thread, thus realizing quick disassembly; an alignment mark 10 is processed on the outer side of the circumference of the filter head 11, so that the filter cartridge 5 can be directly judged to be installed in place; a groove is processed in the filter head 11, so that the problem of installation interference during installation of the filter cartridge 5 is effectively avoided, the risk of air leakage is reduced, and the safety of a product is improved;

(3) the filter cartridge 5 of the gas filter of the utility model is arranged at the lower part of the filter head 11 through the trapezoidal thread, and the thread tail part of the filter cartridge 5 is provided with the limit block 12, thus being convenient for installation; the filter cartridge 5 is produced in a die-casting mode, and threads are directly cast, so that the processing cost is reduced; the lower part of the filter cylinder 5 adopts a polygon, the filter cylinder 5 can be directly installed by being held by hands, and the intersection of the polygon and the bottom adopts circular arc transition, so that the strength is increased, and the product safety is improved;

(4) the utility model discloses a gas filter blowoff valve 6 links together through blowoff valve joint 7 with straining a section of thick bamboo 5, avoids blowoff valve 6 and strain the joint strength problem and the gas leakage problem that 5 direct links to each other produced of a section of thick bamboo, has improved the product security.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

In the description of the present invention, it is to be understood that the terms "upper", "one end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that the terms "provided with" and "connected" are to be interpreted broadly, unless explicitly stated or limited otherwise. For example, the connection can be fixed, detachable or integrated; may be directly connected or indirectly connected through an intermediate. The fixed connection can be common technical schemes such as welding, threaded connection and clamping. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A gas filter is characterized by comprising a filter cylinder, a filter head, a filter element and a blow-down valve, wherein the filter head is installed at the top of the filter cylinder, the filter element is arranged in the filter cylinder, an air flow channel is arranged in the filter head, an air inlet and an air outlet are formed in the filter head and positioned at two ends of the air flow channel, the air flow channel is communicated with the filter element, the blow-down valve is arranged on the filter cylinder, the filter element comprises an upper end cover, a lower end cover and a filter layer, the upper end cover is installed at the top end of the filter layer, the lower end cover is arranged at the bottom end of the filter layer, and the;

the center of the lower end cover is of a conical structure.

2. The gas filter of claim 1, wherein said filter head is threadably engaged with said filter cartridge in a trapezoidal pattern.

3. The gas filter of claim 1, wherein the lower portion of said filter cartridge has a polygonal configuration.

4. The gas filter of claim 1, wherein alignment indicia are provided on the circumferential outer side of said filter head.

5. The gas filter of claim 1, further comprising a blow-down valve connector, wherein the blow-down valve and the filter cartridge are connected by the blow-down valve connector.

6. The gas filter of claim 1, wherein said filter layer and said bottom end cap are bonded with a glue.

7. The gas filter of claim 2, wherein the internal threads of the filter head are threadably engaged with the external threads of the filter cartridge, and the threaded end of the filter cartridge is provided with a stop block.

8. A gas cleaner as set forth in claim 3, wherein said threaded end portion of said filter cartridge is provided with a groove.

9. The gas filter of claim 7, wherein said externally threaded filter cartridge is a casting.