CN213527835U - Gas filter - Google Patents

Abstract

The utility model discloses a gas filter, including air inlet, gas outlet, valve body and filter equipment, the air inlet is used for letting in gas, and the gas outlet is used for exhaust gas, air inlet and gas outlet intercommunication, and air inlet and gas outlet all set up on the valve body, and filter equipment sets up on the valve body, and filter equipment is used for filtering the impurity that gaseous back subsidiary after letting in the valve body, and filter equipment is including the filter screen and cross the filter pulp, and the filter screen sets up on crossing the filter pulp and forms double-deck filtration. The utility model discloses a filter screen and filter cotton form's double-deck filtration's setting among the filter equipment to be arranged in jointly filtering the impurity by-pass of gas in letting in the valve body, the filter screen and filter cotton can not only filter the great impurity of diameter, can also effectively filter impurity such as the less dust of diameter, prevent that the impurity by-pass of gas from getting into combustion apparatus and then causing the equipment trouble through gas filter, so that play good filtering action, improve equipment's security performance.

Description

Gas filter

Technical Field

The utility model relates to a gas combustion equipment technical field, concretely relates to gas filter.

Background

Along with the continuous progress of science and technology, the more and more wide application of gas is in people's production life, and the gas attaches impurity particle often in the in-process of using, and the gas of the incidental impurity of long-term burning can cause the harm to solenoid valve and combustor in the combustion equipment, and the valve port of present solenoid valve generally adopts rubber material's sealing member to seal, glues the condition that the gas leakage appears very easily in impurity such as dust, and then has promoted the fault rate of solenoid valve and combustor.

The effect of filter at gas equipment constantly improves, can filter the subsidiary impurity in the gas through the filter, however, present filter is for being equipped with the filter screen of certain mesh number, and this kind of filter screen can only filter partial diameter and be about 1.5 millimeters impurity granule, and is not obvious to the impurity filtering action about the diameter scope is 0.1 millimeter to 1 millimeter, still has impurity such as partial dust to get into solenoid valve and combustor through the filter, can not play effectual filtering action, and equipment security performance is lower.

Therefore, it is necessary to provide a gas filter that solves the above problems.

Disclosure of Invention

An object of the utility model is to improve prior art's defect, provide a gas filter.

In order to solve the technical problem, the technical scheme of the utility model as follows:

the utility model provides a gas filter, includes air inlet, gas outlet, valve body and filter equipment, and the air inlet is used for letting in gas, and the gas outlet is used for discharging gas, air inlet and gas outlet intercommunication, air inlet and gas outlet all set up on the valve body, filter equipment sets up on the valve body, filter equipment is used for filtering the impurity that gas accesss the valve body back subsidiary, filter equipment is including filter screen and filter pulp, the filter screen sets up on filter pulp and forms double-deck filtration.

The principle of the gas filter is that because the gas inlet and the gas outlet are both arranged on the valve body, gas is introduced into the valve body through the gas inlet and flows through the filtering device, the double-layer filtering structure formed by the filter screen and the filter cotton filters out the impurities attached to the gas, and the gas is discharged after the gas is filtered out through the gas outlet.

Further, the valve body is hollow and forms a channel, the channel is located between the air outlet and the air inlet, the air inlet is communicated with the air outlet through the channel, and the filtering device is arranged on the channel.

The filter device is arranged on the channel, the channel is arranged between the gas outlet and the gas inlet, when gas is introduced into the valve body through the gas inlet, the filter device on the channel can automatically filter the impurities attached to the gas, and the gas discharged after the gas is filtered through the channel and the gas outlet.

Further, the gas flows in sequence along the direction of the gas inlet, the channel and the gas outlet.

When gas passes through the air inlet inflow passageway, the filter screen among the filter equipment filters the attached great impurity of diameter of gas earlier, carries out the secondary filter with impurity such as the less dust of diameter, incomplete bits by filtering the cotton again, and the gaseous emission after the rethread gas outlet will be filtered and accomplished for play effectual filtering action, further improve equipment's security performance.

In this technical scheme, the filter screen filters the impurity that the diameter is 1 millimeter earlier, and the filter pulp filters the impurity that the diameter range is about 0.1 millimeter to 1 millimeter again, just so can play effectual filtering.

Further, the valve body is provided with an assembly hole, the assembly hole is communicated with the channel, and the filtering device is installed on the assembly hole in a sealing mode.

When the filter cotton and the filter screen are used for a long time, in order to avoid the blockage of the channel by excessive impurities, the filter device can be disassembled and replaced through the assembling hole, and the service life of the gas filter is further prolonged.

Furthermore, filter equipment is still including closing plate, rubber circle, filter screen pressure spring, the rubber circle is installed on the closing plate, the closing plate pass through rubber circle seal installation in on the pilot hole, the filter screen pressure spring is used for playing fixed filter screen and the effect of crossing the filter pulp.

The closing plate passes through rubber circle seal installation on the pilot hole during assembly to be used for preventing the condition that gas leakage appears when the passageway is flowed through to gas, the setting of drawing the net pressure spring can prevent that the filter screen and filter pulp from appearing not hard up, shifting, the circumstances such as drop when filtering gas.

Furthermore, one end of the filter screen pressure spring is pressed against the sealing plate, and the other end of the filter screen pressure spring is pressed against the filter screen.

The filter screen receives the extrusion force of filter screen pressure spring, makes the double-deck filtration that filter screen and filter pulp formed extrude on the passageway, gets into the valve body from the air inlet when gaseous to when the passageway, filter screen and filter pulp filter the subsidiary impurity of the gas that lets in, will filter the back clean gas of back and discharge through the gas outlet again.

Furthermore, the material of the filter screen is a metal material.

The filter screen of metal material can keep certain rigidity, prevents to warp because receiving the long-term extrusion of filter screen pressure spring, and gas filter is when regular maintenance, and closing plate, filter screen pressure spring and the filter screen of metal material among the filter equipment can also dismantle repeatedly and wash the change and utilize.

Furthermore, the valve body is made of a metal alloy material.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:

the utility model discloses a gas filter, through filter screen and the setting of the double-deck filtration that the filter pulp formed among the filter equipment to be arranged in jointly filtering and letting in the incidental impurity of gas in the valve body, filter screen and filter pulp can not only filter the great impurity filtration of diameter, can also effectively filter impurity such as the less dust of diameter, prevent that the incidental impurity of gas from passing through gas filter and getting into combustion apparatus and then causing the equipment trouble, so that play good filter effect, improve equipment's security performance.

Drawings

FIG. 1 is a cross-sectional view of a gas filter in an embodiment of the invention;

FIG. 2 is an enlarged view of the structure of the filter device of FIG. 1;

description of reference numerals:

10. the filter comprises an air inlet, 20, an air outlet, 30, a valve body, 31, an assembly hole, 40, a filter device, 41, a filter screen, 42, filter cotton, 43, a sealing plate, 44, a rubber ring, 45, a filter screen compression spring, 50, a channel, 60 and screws.

Detailed Description

The following describes embodiments of the present invention in detail.

As shown in fig. 1, a gas filter includes a gas inlet 10, a gas outlet 20, a valve body 30 and a filtering device 40, wherein the gas inlet 10 is used for introducing gas, the gas outlet 20 is used for discharging gas, the gas inlet 10 is communicated with the gas outlet 20, the gas inlet 10 and the gas outlet 20 are both arranged on the valve body 30, the filtering device 40 is used for filtering impurities attached to the gas after the gas is introduced into the valve body 30, the filtering device 40 includes a filtering net 41 and filtering cotton 42, and the filtering net 41 is arranged on the filtering cotton 42 and forms a double-layer filtering structure.

Referring to fig. 1, the valve body 30 is hollow and forms a channel 50, the channel 50 is located between the air outlet 20 and the air inlet 10, the air inlet 10 is communicated with the air outlet 20 through the channel 50, and the filtering device 40 is disposed on the channel 50; the gas flows in sequence along the direction of the gas inlet 10, the channel 50 and the gas outlet 20; in this embodiment, the filtering net 41 firstly filters the impurities with a diameter of 1 mm, and the filtering cotton 42 filters the impurities with a diameter ranging from 0.1 mm to about 1 mm, so as to play an effective filtering role.

The filter screen 41 is made of metal material; the valve body 30 is made of metal alloy material.

Referring to fig. 1 and 2, the valve body 30 is provided with an assembly hole 31, the assembly hole 31 is communicated with the channel 50, and the filter device 40 is hermetically mounted on the assembly hole 31; with reference to fig. 2, the filtering device 40 further includes a sealing plate 43, a rubber ring 44, and a filter screen pressure spring 45, the rubber ring 44 is mounted on the sealing plate 43, the sealing plate 43 is mounted on the assembling hole 31 through the rubber ring 44, the filter screen pressure spring 45 is used for fixing the filter screen 41 and the filter cotton 42, in this embodiment, the sealing plate 43 is further fixed on the valve body 30 through a screw 60, so as to prevent gas leakage caused by loosening of the sealing plate 43 during long-term use, and further improve the stability of the gas filter; referring to fig. 2, one end of the screen compression spring 45 is pressed against the sealing plate 43, and the other end of the screen compression spring 45 is pressed against the filter screen 41.

The embodiment has the following advantages:

1. the principle of the gas filter is that because the gas inlet 10 and the gas outlet 20 are both arranged on the valve body 30, gas is introduced into the valve body 30 through the gas inlet 10 and flows through the filtering device 40, the impurities attached to the gas are filtered by a double-layer filtering structure formed by the filtering net 41 and the filtering cotton 42, and the filtered gas is discharged through the gas outlet 20;

the gas filter disclosed in this embodiment, through the setting of the double-deck filtration structure that filter screen 41 and filter pulp 42 formed in filter equipment 40, with the impurity that is used for filtering jointly and letting in the gas in valve body 30 subsidiary, filter screen 41 and filter pulp 42 can not only filter the great impurity of diameter, impurity such as the dust that can also effectively filter the diameter less, prevent that gaseous subsidiary impurity from passing through gas filter and getting into combustion apparatus and then causing equipment trouble, so that play good filtering action, improve equipment's security performance.

2. The filtering device 40 is arranged on the channel 50, the channel 50 is arranged between the air outlet 20 and the air inlet 10, when air is introduced into the valve body 30 through the air inlet 10, the filtering device 40 on the channel 50 can automatically filter impurities attached to the air, and the filtered air is discharged through the communication between the channel 50 and the air outlet 20.

3. When gas flows into the channel 50 through the gas inlet 10, the filter screen 41 in the filter device 40 filters out the impurities with large diameters attached to the gas, and then the impurities such as dust with small diameters and scraps are filtered for the second time by the filter cotton 42, and the filtered gas is discharged through the gas outlet 20 to play an effective filtering role and further improve the safety performance of the equipment.

4. When the filter cotton 42 and the filter screen 41 are used for a long time, in order to avoid the channel 50 from being blocked by excessive impurities, the filter device 40 can be disassembled and replaced through the assembling holes 31, and the service life of the gas filter is further prolonged.

5. During assembly, the sealing plate 43 is hermetically mounted on the assembly hole 31 through the rubber ring 44, so as to prevent gas from leaking when the gas flows through the channel 50, and the arrangement of the net pulling pressure spring can prevent the filter net 41 and the filter cotton 42 from loosening, shifting, falling off and the like when the gas is filtered.

6. The filter screen 41 is pressed by the pressing force of the filter screen pressing spring 45, so that the double-layer filtering structure formed by the filter screen 41 and the filter cotton 42 is pressed on the channel 50, when the gas enters the valve body 30 from the gas inlet 10 and flows through the channel 50, the filter screen 41 and the filter cotton 42 filter out impurities attached to the introduced gas, and the filtered clean gas is discharged through the gas outlet 20.

7. The metal filter 41 can maintain a certain rigidity, and prevent deformation due to long-term extrusion by the filter pressing spring 45, and the sealing plate 43, the filter pressing spring 45, and the metal filter 41 in the filter device 40 can be repeatedly detached, cleaned, replaced, and used during regular maintenance of the gas filter.

The above are only specific embodiments of the present invention, and the protection scope of the present invention is not limited thereby; any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims (8)

1. A gas filter comprising:

the gas inlet is used for introducing gas;

the gas outlet is used for discharging gas, and the gas inlet is communicated with the gas outlet;

the air inlet and the air outlet are both arranged on the valve body;

the gas filter is characterized by also comprising a filtering device, wherein the filtering device is arranged on the valve body and is used for filtering impurities attached after gas is introduced into the valve body;

the filtering device comprises a filter screen and filter cotton, wherein the filter screen is arranged on the filter cotton and forms a double-layer filtering structure.

2. The gas filter of claim 1, wherein the valve body is hollow and defines a passage between the gas outlet and the gas inlet, the gas inlet communicating with the gas outlet through the passage, and the filter means is disposed in the passage.

3. The gas filter of claim 2, wherein gas is circulated in sequence in the direction of the gas inlet, the channel and the gas outlet.

4. The gas filter of claim 2, wherein the valve body is provided with a fitting hole, the fitting hole communicating with the passage, and the filter unit is sealingly mounted to the fitting hole.

5. The gas filter of claim 4, wherein the filter device further comprises a sealing plate, a rubber ring, and a filter screen compression spring, the rubber ring is mounted on the sealing plate, the sealing plate is mounted on the mounting hole by the rubber ring, and the filter screen compression spring is used for fixing the filter screen and the filter cotton.

6. The gas filter of claim 5, wherein one end of the screen compression spring bears against the seal plate and the other end of the screen compression spring bears against the filter screen.

7. The gas filter according to any one of claims 1 to 6, wherein the material of the filter screen is a metal material.

8. The gas filter according to any one of claims 1 to 6, wherein the valve body is made of a metal alloy material.

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