CN211635700U - Coal bed gas filter equipment - Google Patents

Abstract

The utility model discloses a coal bed gas filtering device, which comprises a filtering box and a filtering mechanism, wherein the filtering box comprises a box body and a cover plate, a channel is arranged in the box body, the inner wall of the channel is provided with two opposite arc surfaces, and the cover plate is connected with an opening which is arranged on the side wall of the box body and is communicated with the channel; the filtering mechanism comprises a fixed rod and at least four filtering pieces which have a filtering effect on coal bed gas, the fixed rod is positioned between the two arc-shaped surfaces, the axis of the fixed rod is parallel to the arc-shaped surfaces, the at least four filtering pieces are circumferentially arranged along the fixed rod, one side of each filtering piece is connected with the cover plate, the other side of each filtering piece is clamped with one of the arc-shaped surfaces, and at least one screening cavity is formed between each arc-shaped surface and the fixed rod; the technical problems that in the prior art, a coal bed gas filtering device is complex in structure, and multiple-stage filtering results in overlarge volume and inconvenient use are solved.

Description

Coal bed gas filter equipment

Technical Field

The utility model relates to the technical field, concretely relates to coal bed gas filter equipment.

Background

Coal bed gas is a clean and high-quality energy and chemical raw material which rises internationally in nearly one or two decades, wastewater discharged in the coal bed gas exploitation process is mainly underground water and a small part of drilling fluid in a coal bed range, most of exploited wastewater is directly discharged, part of coal bed gas is mixed in the wastewater, the coal bed gas is discharged into the atmosphere along with the wastewater, the atmospheric environment is polluted, mud and coal powder in the wastewater are mixed, vegetation on a discharge site is damaged, mud and coal powder contained in the exploited wastewater are wasted, and the requirement of sustainable development is not met.

However, the existing coal bed gas filtering device is complicated in structure, and the volume is too large due to multi-stage filtration, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a coal bed gas filter equipment, solve among the prior art coal bed gas filter equipment structure loaded down with trivial details, multistage filtration leads to bulky, awkward technical problem.

In order to achieve the technical purpose, the technical scheme of the utility model provides a coal bed gas filtering device, which comprises a filtering box and a filtering mechanism, wherein the filtering box comprises a box body and a cover plate, a channel is arranged in the box body, the inner wall of the channel is provided with two opposite arc surfaces, and the cover plate is connected with an opening which is arranged on the side wall of the box body and is communicated with the channel; the filtering mechanism comprises a fixed rod and at least four filtering pieces for filtering coal bed gas, wherein the fixed rod is positioned between the arc-shaped surfaces, the axis of the fixed rod is parallel to the arc-shaped surfaces, the filtering pieces are arranged along the circumferential direction of the fixed rod, and each filtering piece is provided with one side connected with the cover plate, the other side connected with one side of the cover plate, and at least one screening cavity is formed between the arc-shaped surfaces and the fixed rod.

Compared with the prior art, the beneficial effects of the utility model include: cut apart a plurality of screening cavitys that form through a plurality of filtration pieces between two relative arcwall faces that set up on the passageway and the dead lever, divide into two-layer a plurality of screening cavitys from top to bottom with the passageway that the coal bed gas flowed through, pass in and out the filter cartridge once at the coal gas layer, pierce through a plurality of filtration pieces, realize multi-stage filtration's function, moreover, the steam generator is simple in structure, and is small, high durability and convenient use, and can follow the side and dismantle the apron and take out whole filtration piece, it is convenient to dismantle, the maintenance to filtration piece is washd conveniently, therefore, the clothes hanger is strong in practicability, through setting up the arcwall face, waste liquid and waste residue that can filter are piled up on the arcwall face, conveniently clear up, compare with.

Drawings

Fig. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic structural view of the cover plate and the box body of the present invention;

FIG. 4 is a schematic structural view of the cover plate and the box body of the present invention in threaded connection;

fig. 5 is a schematic structural view of the frame body connected to the fixing rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a coal bed gas filter equipment, including a filter cartridge 100 and a filter mechanism 200, filter mechanism 200 locates in the box body 110, and a plurality of cavitys are cut apart into with filter cartridge 100's inside to filter mechanism 200, when the coal bed gas passes through, need pass filter mechanism 200 and enter into next cavity, just can discharge after passing a plurality of cavitys, realize the multiple stage filtration function of small volume.

The filter cartridge 100 includes a cartridge body 110 and a cover plate 120, the cartridge body 110 has a channel 111 therein, the inner wall of the channel 111 has two opposite arc surfaces 112, and the cover plate 120 is connected to an opening 113 formed on the side wall of the cartridge body 110 and communicated with the channel 111.

The filter cartridge 100 further includes a sealing ring 130, the sealing ring 130 is fixed on the opening 113 and is abutted against the cover plate 120, and when the coal bed gas is introduced into the channel 111, the coal bed gas is prevented from leaking from a gap between the opening 113 and the cover plate 120, so that the environment is polluted and the energy is lost.

The filter box 100 further comprises an air inlet pipe 140 and an air outlet pipe 150, one end of the air inlet pipe 140 and one end of the air outlet pipe 150 are respectively communicated with two ends of the channel 111, the coal bed gas is guided into the channel 111 through the air inlet pipe 140 and is discharged from the air outlet pipe 150 through the filter mechanism 200.

In this embodiment, the filtering mechanism 200 includes a fixing rod 210 and at least four filtering members 220 for filtering coal bed methane, the fixing rod 210 is located between two arc-shaped surfaces 112, an axis of the fixing rod 210 is parallel to the arc-shaped surfaces 112, the at least four filtering members 220 are circumferentially arranged along the fixing rod 210, one side of each filtering member 220 is connected to the cover plate 120, the other side is clamped to one of the arc-shaped surfaces 112, and at least one screening cavity is formed between each arc-shaped surface 112 and the fixing rod 210.

Wherein, the device still includes a plurality of fixings 121, and a plurality of fixings 121 evenly arrange along apron 120 week, and every fixing 121 one side is connected with apron 120, and the fixing 121 opposite side is connected with opening 113, and opening 113 is the echelonment, and is specific:

as shown in fig. 3, in the embodiment, the fixing member 121 may adopt a plurality of elastic clamping strips, the elastic clamping strips are uniformly arranged along the circumferential direction of the cover plate 120, one side of each elastic clamping strip is connected to the cover plate 120, and the other side of each elastic clamping strip is connected to the opening 113.

As shown in fig. 4, in the embodiment, the fixing member 121 may be connected by a threaded connection, specifically, a plurality of fixing screws are disposed on one side of the cover plate 120 away from the filter cartridge 100, the plurality of fixing screws are uniformly arranged along the circumferential direction of the cover plate 120, and the plurality of fixing screws penetrate through the cover plate 120 and are in threaded connection with threaded holes formed in the cartridge body 110.

Coal bed gas filter equipment still includes two at least row waste pipe 300, and the one end of every row waste pipe 300 is passed filter cartridge 100 and is linked together with different screening cavity, opens row waste pipe 300 and can derive accumulational waste liquid and waste residue etc. on the arcwall face 112, convenient clearance.

The coal bed gas filtering device further comprises a sealing ring 130, wherein the sealing ring 130 is arranged on the opening 113 and is abutted against the cover plate 120.

It is understood that the shape of the cover plate 120 can be any shape, such as circular, square, etc., as long as the quick-release of the cover plate 120 and the pressing of the sealing ring 130 can be achieved to seal the cover plate 120 to the channel 111.

As shown in fig. 5, the filter member 220 and the fixing rod 210 in this embodiment may be connected by screw threads, or may be connected by other methods, and the connection between the filter member 220 and the fixing rod 210 is preferably stable.

Preferably, as shown in fig. 2, each filter element 220 includes a frame 221 and a filter layer 222, one side of the frame 221 is clamped with the arc-shaped surface 112, and the other side of the frame 221 is connected with the fixing rod 210, a square cavity is provided in the frame 221, and the filter layer 222 is embedded in the square cavity, wherein the filter layer 222 may be a cotton layer for filtering waste water and waste residues, and is made of the same material as a cotton core of a cotton core filter in the market, except that the cotton layer in this embodiment is block-shaped and is embedded in the frame 221, and a filter layer 222 made of other materials, such as a filter net or other porous structures for filtering, may also be used, as long as the function of filtering and separating coal bed methane can be realized.

A plurality of strip-shaped through grooves matched with the filter pieces 220 are formed in the two arc-shaped surfaces 112, and when the filter pieces 220 are assembled and disassembled, the filter pieces 220 are inserted into or pulled out of the through grooves, so that the filter is convenient and quick.

The working process is as follows: the coal bed gas to be filtered is introduced into the gas inlet pipe 140, the coal bed gas to be filtered is introduced into the channel 111 by the gas inlet pipe 140, under the driving of the gas flow, the coal bed gas enters a screening cavity through the filter layer 222, the screening cavity is formed by the filter layer 222, the next filter layer 222 along the gas flow direction, the corresponding arc-shaped surface 112 and the fixing rod 210 in a surrounding manner, meanwhile, the coal bed gas enters the next screening cavity through the next filter layer 222 until the coal bed gas is discharged from the gas outlet pipe 150, namely, the filtering treatment of the coal bed gas is completed, after the coal bed gas filtering device works for one end time, the coal bed gas is stopped to be introduced into the gas inlet pipe 140, the waste liquid and the waste residues accumulated in the lower arc-shaped groove are discharged by opening the waste discharge pipe 300, the waste liquid and the waste residues are discharged through the principle of high-low level hydraulic pressure difference, until the waste liquid and the waste residue are not discharged from the waste discharge pipe 300, the cover plate 120 is taken down and the filter, the filter layer 222 is maintained and cleaned, the filter layer 222 to be replaced is detached and replaced, and after maintenance, one side of the frame body 221 is inserted into the strip-shaped through groove formed in the arc-shaped surface 112, the cover plate 120 is pushed until the cover plate 120 extrudes the sealing ring 130 to realize internal sealing.

Two relative arcwall faces 112 that set up on the passageway 111 and the dead lever 210 between cut apart a plurality of screening cavitys that form through a plurality of filtration pieces 220, divide into two-layer a plurality of screening cavitys about coal bed gas flow through's passageway 111, filter cartridge 100 is passed in and out once at the coal gas layer, pierce through a plurality of filtration pieces 220, realize multi-stage filtration's function, moreover, the steam generator is simple in structure, small in size, high durability and convenient use, and can follow the side and dismantle apron 120 and take out whole filtration piece 220, it is convenient to dismantle, convenient maintenance to filtering piece 220 washs, therefore, the clothes hanger is strong in practicability, through setting up arcwall face 112, waste liquid and waste residue that can filter are piled up on arcwall face 112, conveniently clear up, compare with traditional coal bed gas filter equipment, low cost, it.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. A coal bed gas filter device, characterized by, includes:

the filter box comprises a box body and a cover plate, a channel is arranged in the box body, the inner wall of the channel is provided with two opposite arc-shaped surfaces, and the cover plate is connected with an opening which is formed in the side wall of the box body and communicated with the channel;

filtering mechanism, filtering mechanism includes a dead lever and filters four at least filter pieces of effect to coal bed gas, the dead lever is located two between the arcwall face, just the axis of dead lever with the arcwall face is parallel, four at least filter piece edge the dead lever circumference is arranged, every filter piece one side with lap joint, opposite side and one of them arcwall face joint, every the arcwall face with form at least one screening cavity between the dead lever.

2. The coal bed gas filtering device according to claim 1, further comprising at least two waste discharge pipes, wherein one end of each waste discharge pipe penetrates through the filtering box and is communicated with different screening cavities.

3. The coal bed methane filtering device of claim 1, wherein the filter cartridge further comprises a sealing ring secured to the opening and abutting the cover plate.

4. The coal bed gas filtering device according to claim 1, wherein the filtering box further comprises an air inlet pipe and an air outlet pipe, and one end of the air inlet pipe and one end of the air outlet pipe are respectively communicated with two ends of the channel.

5. The coal bed gas filtering device according to claim 1, further comprising a plurality of fixing members, wherein the plurality of fixing members are uniformly arranged along the circumferential direction of the cover plate, one side of each fixing member is connected with the cover plate, and the other side of each fixing member is connected with the opening.

6. The coal bed gas filtering device according to claim 1, wherein each filtering member comprises a frame body and a filtering layer, one side of the frame body is clamped with the arc-shaped surface, the other side of the frame body is connected with the fixing rod, a square cavity is arranged in the frame body, and the filtering layer is embedded in the square cavity.

7. The coal bed gas filtering device according to claim 1, wherein a plurality of strip-shaped through grooves are formed in the two arc-shaped surfaces and used for being matched with the filtering piece.

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