CN217735555U

CN217735555U - Non-contact ventilation air methane trapping device

Info

Publication number: CN217735555U
Application number: CN202221986898.0U
Authority: CN
Inventors: 李传光; 曲涛; 杨延国; 杨晓蕊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-04
Anticipated expiration: 2032-07-29

Abstract

The utility model belongs to the technical field of ventilation air methane collecting devices, in particular to a non-contact ventilation air methane collecting device, wherein the air outlet end of a ventilation air methane main fan air port is connected with a connecting bent pipe through a canvas joint which is sealed and bonded, an explosion-proof electric butterfly valve is arranged on the connecting bent pipe, a bracket for supporting is arranged below the connecting bent pipe, the ventilation air methane main fan air port is fixed in the bracket, a fastening piece for fastening is arranged between a ventilation air duct and the ventilation air methane main fan air port, and a detachable connecting assembly is arranged between the canvas joint and the connecting bent pipe; make ventilation air methane main fan wind gap and connection elbow connect through the canvas joint to make ventilation air methane main fan wind gap and connection elbow carry out the flexible coupling, avoid traditional directness at ventilation air methane main fan wind gap upper shed, cause the intensity in ventilation air methane main fan wind gap to receive and destroy, thereby increased the stability in ventilation air methane main fan wind gap structure, be provided with detachable coupling assembling between canvas joint and the connection elbow simultaneously.

Description

Non-contact ventilation air methane trapping device

Technical Field

The utility model belongs to the technical field of ventilation air methane entrapment device, concretely relates to non-contact ventilation air methane entrapment device.

Background

The ventilation air is also called coal mine air exhaust gas, namely coal mine gas with methane concentration lower than 0.75%. According to statistics of relevant departments, methane exhausted into the atmosphere by ventilation air methane is equivalent to the gas transmission quantity of 1 year in east-west gas transmission in China every year, and the greenhouse gas effect generated is about 2 hundred million tons of carbon dioxide equivalent. The principle of the ventilation air methane and low-concentration gas oxidation power generation is that the gas drained from a pump station is mixed into the ventilation air methane and is guided into a heat accumulating type high-temperature oxidation device. The low-concentration methane is instantly oxidized into water and carbon dioxide in a flameless manner in the high-temperature reaction cavity, and releases huge oxidation heat. A small part of the heat energy is used for maintaining the reaction temperature, and most of the heat energy is led out to the waste heat boiler to exchange heat with water, so that superheated high-pressure steam is produced to drive a steam turbine to generate power.

When the traditional ventilation air methane collecting device is used, an air intake port is usually arranged on the outer surface of a ventilation air methane main fan to take air, and a hole is dug at an air port of the ventilation air methane main fan in the past, so that the structure of the air port of the main fan is damaged, the strength of the air port of the main fan is reduced, and hidden troubles are brought to coal mine production work. Therefore, a new ventilation air methane collecting device is required to be designed to be in flexible connection with the main fan air inlet, the structure of the original main fan air inlet is not changed, the strength of the main fan air inlet is not reduced, and meanwhile, the main fan air inlet is convenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides a non-contact ventilation air methane collecting device.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a non-contact ventilation air methane entrapment device, including the ventilation air methane air duct, install the ventilation air methane main fan wind gap in ventilation air methane air duct one end, a connecting bend for carminative, and the discharge of connecting bend tip installation, the end of giving vent to anger of ventilation air methane main fan wind gap is connected with connecting bend through sealing bonding's canvas joint, the last explosion-proof electric butterfly valve of installing of connecting bend, the support that is used for the support is installed to connecting bend's below, and ventilation air methane main fan wind gap fixes the inside at the support, be provided with the fastener that is used for the fastening between ventilation air methane air duct and the ventilation air methane main fan wind gap, be provided with detachable coupling assembling between canvas joint and the connecting bend.

As the utility model discloses a preferred technical scheme of non-contact ventilation air methane entrapment device, coupling assembling include that canvas joint tip passes through the roof of holding ring and set screw installation, and the holding ring passes through set screw to be fixed at the upper surface of roof, and in set screw's tip closed the screw hole that the roof upper surface was seted up soon, in connection elbow's lower extreme closed the reservation screw hole of seting up at the roof middle part soon, and be provided with first sealing member between connection elbow and the roof.

As the utility model discloses a preferred technical scheme of non-contact ventilation air methane entrapment device, first sealing member include connecting bend outer surface welded voltage limiting ring to and set up at the first sealed ring of voltage limiting ring lower surface, and first sealed ring mounting is in the first seal groove that the roof upper surface was seted up.

As the utility model discloses a preferred technical scheme of non-contact ventilation air methane entrapment device, the fastener includes the clamp ring of clamp at ventilation air methane main fan wind gap tip to and the otic placode at clamp ring both ends is installed at the otic placode and is offered downthehole joint bolt, and still is provided with the second sealing member between ventilation air methane air duct and the ventilation air methane main fan wind gap.

As the utility model discloses a preferred technical scheme of non-contact ventilation air methane entrapment device, the second sealing member includes the sealed ring of gluing of second that sets up between ventilation air methane air duct and the ventilation air methane main fan wind gap, and the sealed ring of gluing of second is installed in the second seal groove that ventilation air methane air duct tip surface was seted up.

As an optimized technical scheme of the non-contact ventilation air methane collecting device of the utility model, the air port of the ventilation air methane main fan is of an arc-shaped tubular structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. make ventilation air methane main fan wind gap and connection elbow connection through the canvas joint, thereby make ventilation air methane main fan wind gap and connection elbow carry out the flexible coupling, avoid traditional direct at ventilation air methane main fan wind gap upper shed, the intensity that causes ventilation air methane main fan wind gap is received and is destroyed, thereby the stability of ventilation air methane main fan wind gap structure has been increased, simultaneously the canvas joint is provided with detachable coupling assembling between with connection elbow, and connect through the fastener between ventilation air methane air duct and the ventilation air methane main fan wind gap, thereby be convenient for ventilation air methane main fan wind gap carries out the dismouting, thereby be convenient for maintain after ventilation air methane main fan wind gap dismantles.

2. Through by the holding ring, the canvas that set screw and roof are connected connects, and the lower extreme of connecting elbow closes in the reserved screw that the roof middle part was seted up soon, thereby be convenient for connecting elbow and canvas articulate, be provided with between connecting elbow and the roof simultaneously and be used for sealed first sealing member, connect elbow skin weld limit compression ring simultaneously, and the first sealed ring of gluing of voltage limiting ring below installs in the first seal groove of seting up of roof upper surface, thereby be convenient for through limit compression ring between connecting elbow and the roof, the cooperation of first sealed ring of gluing and first seal groove is sealed.

3. Through by the clamp ring, fastener 8 that otic placode and joint bolt are constituteed, the clamp ring clamp is in the outside of ventilation air methane main fan wind gap simultaneously, and two otic placodes of clamp ring both ends welded pass through the joint bolt fastening, thereby be convenient for the clamp ring make ventilation air methane main fan wind gap fix at the ventilation air methane air duct outside, install sealed rubber ring of second and second seal groove between ventilation air methane air duct and the ventilation air methane main fan wind gap simultaneously, thereby be convenient for ventilation air methane main fan wind gap fix when ventilation air methane air duct outside, the sealed rubber ring of second is installed in the second seal groove that ventilation air methane air duct surface was seted up, thereby be convenient for between ventilation air methane air duct and the ventilation air methane main fan wind gap sealed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic view of the top plate structure of the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 2;

in the figure: 1. a ventilation air duct; 2. a ventilation air outlet of the ventilation air main fan; 3. canvas joints are arranged; 4. a support; 5. connecting a bent pipe; 6. a gas collecting pipe; 7. an explosion-proof electric butterfly valve; 8. a fastener; 81. a clamp ring; 82. an ear plate; 83. clamping a bolt; 9. a top plate; 10. reserving a screw hole; 11. a pressure limiting ring; 12. a first sealant ring; 13. a first seal groove; 14. a positioning ring; 15. a set screw; 16. a second sealing rubber ring; 17. a second seal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a non-contact ventilation air methane entrapment device, including ventilation air methane air duct 1, install ventilation air methane main fan wind gap 2 at ventilation air methane air duct 1 one end, connecting bend 5 for carminative, and connecting bend 5 end-mounted's discharge tube 6, ventilation air methane main fan wind gap 2's the end of giving vent to anger is connected with connecting bend 5 through sealing bonding's canvas joint 3, install explosion-proof electric butterfly valve 7 on connecting bend 5, connecting bend 5's below is installed and is used for the support 4, and ventilation air methane main fan wind gap 2 fixes the inside at support 4, be provided with fastener 8 that is used for the fastening between ventilation air methane air duct 1 and the ventilation air methane main fan wind gap 2, be provided with detachable coupling assembling between canvas joint 3 and connecting bend 5, make ventilation air methane main fan wind gap 2 and connecting bend 5 connect through canvas joint 3, thereby make ventilation air methane main fan wind gap 2 and connecting bend 5 carry out the flexible coupling, avoid traditional directness to open on ventilation air methane main fan wind gap 2, cause ventilation air methane main fan wind gap 2's intensity to receive destruction, thereby increased the stability of ventilation air methane main fan wind gap 2 structure, simultaneously be provided with detachable coupling assembling and connecting assembling between ventilation air methane main fan wind gap 2 and the ventilation air methane main fan wind gap 2, thereby be convenient for carry out the dismouting fan wind maintenance through the ventilation air methane main fan wind gap 2, thereby be convenient for carry out through canvas joint 2, thereby the rear fan wind maintenance main fan wind pipe 2, thereby it carries out the main fan wind maintenance main fan wind gap 2, thereby be convenient for the rear connection of ventilation air methane main fan wind maintenance, thereby the main fan wind gap 2.

The connecting assembly comprises a top plate 9, the end portion of a canvas joint 3 is installed through a positioning ring 14 and a positioning screw 15, the positioning ring 14 is fixed on the upper surface of the top plate 9 through the positioning screw 15, the end portion of the positioning screw 15 is screwed in a screw hole formed in the upper surface of the top plate 9, the lower end of the connecting elbow 5 is screwed in a reserved screw hole 10 formed in the middle of the top plate 9, a first sealing element is arranged between the connecting elbow 5 and the top plate 9 and comprises a pressure limiting ring 11 welded to the outer surface of the connecting elbow 5 and a first sealing rubber ring 12 arranged on the lower surface of the pressure limiting ring 11, the first sealing rubber ring 12 is installed in a first sealing groove 13 formed in the upper surface of the top plate 9, the canvas joint 3 connected with the top plate 9 through the positioning ring 14 and the positioning screw 15 is connected with the top plate 9, the lower end of the connecting elbow 5 is screwed in the reserved screw hole 10 formed in the middle of the top plate 9 so as to facilitate connection between the connecting elbow 5 and the canvas joint 3, a first sealing element for sealing is arranged between the connecting elbow 5 and the top plate 9, the outer surface of the pressure limiting ring 5 is welded to facilitate connection between the upper surface of the connecting elbow 9 and the sealing ring 12, and the sealing groove 13, and the upper surface of the top plate 9 are matched with the sealing rubber ring 12, and the sealing element so as to facilitate connection elbow 12.

Specifically, the fastening member 8 includes a clamp ring 81 clamped at the end of the ventilation air duct main fan inlet 2, and lug plates 82 welded at both ends of the clamp ring 81, a clamping bolt 83 installed in a hole formed in the lug plate 82, and a second sealing member is further provided between the ventilation air duct 1 and the ventilation air duct main fan inlet 2, the second sealing member includes a second sealing rubber ring 16 arranged between the ventilation air duct 1 and the ventilation air duct main fan inlet 2, and the second sealing rubber ring 16 is installed in a second sealing groove 17 formed in the outer surface of the end of the ventilation air duct 1, by means of the clamp ring 81, the fastening member 8 composed of the lug plates 82 and the clamping bolt 83, and the clamp ring 81 is clamped outside the ventilation air duct main fan inlet 2, and the two lug plates 82 welded at both ends of the clamp ring 81 are fixed by the clamping bolt 83, so that the ventilation air duct main fan inlet 2 is fixed outside the ventilation air duct main fan inlet 1, and the second sealing rubber ring 16 and the second sealing groove 17 are installed between the ventilation air duct main fan inlet 2 and the ventilation air duct main fan inlet 2, thereby facilitating the ventilation air duct main fan inlet 2 to be fixed outside the ventilation air duct main fan inlet 2, and the ventilation air duct main fan inlet 2 is installed between the ventilation air duct main fan inlet 1 and the second sealing groove 17.

Specifically, the ventilation air vent main fan air port 2 is of an arc-shaped tubular structure.

The utility model discloses a theory of operation and use flow: when the ventilation air duct is used, the connecting bent pipe 5 is supported by the support 4, the top plate 9 is screwed at the lower end of the connecting bent pipe 5 through the reserved screw hole 10 in the middle, meanwhile, the pressure limiting ring 11 welded on the outer surface of the connecting bent pipe 5 extrudes the first sealing rubber ring 12 arranged inside the first sealing groove 13, the connecting bent pipe 5 and the top plate 9 are sealed through the pressure limiting ring 11, the first sealing rubber ring 12 and the first sealing groove 13, the top plate 9 is fixed with the canvas joint 3 through the positioning ring 14 and the positioning screw 15, the canvas joint 3 is adhered to the end part of the ventilation air duct main fan air port 2, the second sealing rubber ring 16 is arranged in the second sealing groove 17 formed in the outer surface of the ventilation air duct 1, the ventilation air duct main fan air port 2 and the ventilation air duct 1 are fixed through the fastener 8, and the lug plates 82 welded at the two ends of the clamp ring 81 clamp is clamped outside the ventilation air duct main fan air port 2 under the action of the clamping bolt 83.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a non-contact ventilation air methane entrapment device, includes ventilation air methane air duct (1), installs ventilation air methane main fan wind gap (2) in ventilation air duct (1) one end for carminative connecting bend (5), and discharge (6) of connecting bend (5) tip installation, its characterized in that: the end of giving vent to anger of ventilation air methane main fan wind gap (2) connects (3) through sealed adhesive's canvas and is connected with connecting bend (5), install explosion-proof electric butterfly valve (7) on connecting bend (5), support (4) that are used for the support are installed to the below of connecting bend (5), and ventilation air methane main fan wind gap (2) fixes the inside in support (4), be provided with between ventilation air methane air duct (1) and the ventilation air methane main fan wind gap (2) and be used for fastener (8) of fastening, be provided with detachable coupling assembling between canvas joint (3) and connecting bend (5).

2. The non-contact ventilation air methane trapping device according to claim 1, characterized in that: coupling assembling includes that the canvas connects roof (9) that (3) tip passed through holding ring (14) and set screw (15) installation, and holding ring (14) pass through set screw (15) to be fixed at the upper surface of roof (9), and the tip of set screw (15) closes soon in the screw hole that roof (9) upper surface was seted up, the lower extreme of connecting elbow (5) closes soon in reserve screw hole (10) that roof (9) middle part was seted up, and is provided with first sealing member between connecting elbow (5) and roof (9).

3. A non-contact ventilation air methane catching device according to claim 2, characterized in that: the first sealing element comprises a pressure limiting ring (11) welded on the outer surface of the connecting bent pipe (5) and a first sealing rubber ring (12) arranged on the lower surface of the pressure limiting ring (11), and the first sealing rubber ring (12) is arranged in a first sealing groove (13) formed in the upper surface of the top plate (9).

4. The non-contact ventilation air methane trapping device according to claim 1, characterized in that: fastener (8) include clamp ring (81) of clamp at ventilation air methane main fan wind gap (2) tip to and weld otic placode (82) at clamp ring (81) both ends, install and set up downthehole joint bolt (83) in otic placode (82), and still be provided with the second sealing member between ventilation air duct (1) and ventilation air methane main fan wind gap (2).

5. The non-contact ventilation air methane trapping device according to claim 1, characterized in that: the second sealing element comprises a second sealing rubber ring (16) arranged between the ventilation air duct (1) and the ventilation air main fan air port (2), and the second sealing rubber ring (16) is arranged in a second sealing groove (17) formed in the outer surface of the end part of the ventilation air duct (1).

6. The non-contact ventilation air methane trapping device according to claim 1, characterized in that: the ventilation air main fan opening (2) is of an arc-shaped tubular structure.