CN216280672U

CN216280672U - Device for dehydrating, purifying and increasing calorific value of low-concentration gas vortex pipe of coal mine

Info

Publication number: CN216280672U
Application number: CN202121783314.5U
Authority: CN
Inventors: 陈宜亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-04-12
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a device for dehydrating, purifying and improving calorific value of low-concentration gas vortex tubes in a coal mine, which comprises a device main body, wherein two air inlet main pipes are arranged at the top end of the device main body, a water outlet main pipe is arranged at the bottom side of the air inlet main pipe, an air outlet main pipe is arranged at the bottom side of the water outlet main pipe, an air inlet system support is arranged between the air inlet main pipe and the water outlet main pipe, and a purifier air outlet pipe is arranged between the water outlet main pipe and the air outlet main pipe. The utility model separates partial air through the purifier, improves the heat value of low-concentration gas, reduces the outage rate of the gas generator set, enlarges the utilization range of the low-concentration gas through improving the heat value of the low concentration, can not be directly utilized by the low-concentration gas generator set, and can use the emptied ultra-low-concentration gas for power generation of the low-concentration gas generator set.

Description

Device for dehydrating, purifying and increasing calorific value of low-concentration gas vortex pipe of coal mine

Technical Field

The utility model relates to the field of gas utilization, in particular to a device for dehydrating, purifying and improving a heat value of a low-concentration gas vortex pipe in a coal mine.

Background

In the gas drained by a mine, the low-concentration gas has a large occupation ratio, the methane concentration of the gas is in an explosion limit range, in order to safely convey the gas for generating by a low-concentration generating set, a method of conveying the low-concentration gas and fine water mist in a mixed mode is adopted for conveying, the water mist of the low-concentration gas containing the water mist is removed before the gas enters the generating set, otherwise, the in-cylinder combustion is influenced, the thermal efficiency is reduced, and the engine is seriously damaged.

In the prior art, methods such as gravity dehydration, cyclone dehydration, wire mesh defogging and the like are mostly adopted for dehydration and defogging, and the dehydration and defogging methods can remove certain moisture, but in contrast, the dehydration efficiency is low, the moisture content of the dehydrated low-concentration gas is still high, and the operation of an engine is correspondingly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a device for dehydrating, purifying and improving the calorific value of a low-concentration gas vortex pipe in a coal mine.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses a device for dehydrating, purifying and improving the calorific value of a low-concentration gas vortex tube in a coal mine, which comprises a device main body, wherein two air inlet header pipes are arranged at the top end of the device main body, a water outlet header pipe is arranged at the bottom side of the air inlet header pipes, an air outlet header pipe is arranged at the bottom side of the water outlet header pipes, the two air inlet header pipes, the two water outlet header pipes and the two air outlet header pipes are arranged, four air inlet branch pipes are arranged among the air inlet header pipes, four water outlet branch pipes are arranged among the water outlet header pipes, four air outlet branch pipes are arranged among the air outlet header pipes, an air inlet system support is arranged between the air inlet header pipes and the water outlet header pipes, and a purifier air outlet pipe is arranged between the water outlet header pipes and the air outlet header pipes.

As a preferable technical scheme of the utility model, seven purifiers are installed at the bottom end of the air inlet branch pipe, a purifier air inlet is installed at the top end of each purifier, a vortex guide vane is installed at the bottom side of the purifier air inlet, a purifier air outlet is installed at the bottom side of the vortex guide vane, a water collecting chamber is installed at the bottom side of the purifier air outlet, and a water collecting chamber outlet is installed at the bottom end of the water collecting chamber.

As a preferred technical scheme of the utility model, the purifier is of a cylindrical pipeline structure, the air inlet branch pipe and the water outlet branch pipe are connected through a purifier pipeline, the water outlet branch pipe and the air outlet branch pipe are connected through a purifier pipeline, and the purifier penetrates through the water outlet branch pipe from the bottom end of the air inlet branch pipe to the top end of the air outlet branch pipe.

As a preferable technical scheme of the utility model, one end of the water outlet main pipe is provided with a water return pipe, the top end of the water return pipe is provided with an air emptying device, and the air emptying device is connected with the air outlet main pipe through a water return pipe.

As a preferred technical scheme of the utility model, one end of the gas outlet main pipe is provided with a gas pipe, one end of the gas pipe is provided with a flame arrester, the top end of the gas pipe is provided with a gas emptying device, and the gas emptying device is connected with the gas outlet main pipe through a gas pipe pipeline.

As a preferred technical scheme of the utility model, two ends of the air inlet main pipe, the water outlet main pipe and the air outlet main pipe are respectively provided with an explosion-proof valve, and the positions of the outer sides of the air inlet main pipe, the water outlet main pipe and the air outlet main pipe, which correspond to the air inlet branch pipe, the water outlet branch pipe and the air outlet branch pipe, are respectively provided with a cleaning hole.

As a preferable technical scheme of the utility model, the air inlet main pipe and the air outlet main pipe are fixed through an air inlet system support, and the air outlet main pipe and the water outlet main pipe are fixed through an air outlet pipe of the purifier.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can realize the high-efficiency dehydration and purification of water-containing mist gas, meet the requirements of low-concentration gas generator sets, improve the generating efficiency, improve the operation stability, prolong the service life of the generator sets and reduce the maintenance cost.

2. The utility model has small system pressure drop in the dehydration and purification process, is beneficial to improving the low-concentration gas with corresponding pressure for the generator set and is beneficial to the operation of the generator set.

3. The utility model can separate partial air, improve the heat value of low-concentration gas, reduce the shutdown rate of a gas generator set, enlarge the utilization range of the low-concentration gas by improving the heat value of the low concentration, and ensure that the original gas with the ultralow concentration, which occupies about more than 35 percent of the total gas discharge capacity and cannot be directly utilized by the low-concentration gas generator set due to the ultralow heat value, can be used for generating electricity by the low-concentration gas generator set, thereby generating great economic benefit and social benefit.

4. The device adopts the mode that the air inlet system, the water discharge system, the air outlet system, the branch pipes and the main pipe are respectively arranged, and the vortex tube dehydration purifier is exposed and separately assembled, so that the device is convenient to inspect and clean and convenient to maintain.

5. The device of the utility model has no moving parts, no auxiliary materials and consumables, no power consumption, extremely low operation cost, stable and reliable long-term operation and long service life.

6. The method and the device are not only suitable for purifying low-concentration gas water and increasing the heat value, but also suitable for purifying other low-heat-value gases and increasing the heat value.

Drawings

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

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

FIG. 2 is a schematic view of the purifier structure of the present invention;

FIG. 3 is a perspective view of the purifier structure of the present invention;

in the figure: 1. a device main body; 2. a device air inlet; 3. an intake manifold; 301. an intake branch pipe; 4. a water outlet main pipe; 401. a water outlet branch pipe; 5. a gas outlet header pipe; 501. an air outlet branch pipe; 6. a purifier; 601. a purifier air inlet; 602. swirling guide vanes; 603. an air outlet of the purifier; 604. a purifier outlet pipe; 605. A water collection chamber; 6051. an outlet of the water collection chamber; 7. an air evacuation device; 701. a water return pipe; 8. a gas evacuation device; 801. a flame arrestor; 802. a gas delivery pipe; 9. an air intake system support; 10. cleaning the holes; 11. An explosion-proof valve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Wherein like reference numerals refer to like parts throughout.

Example 1

As shown in fig. 1-3, the utility model provides a device for dehydration, purification and heat value improvement of a low-concentration gas vortex tube in a coal mine, which comprises a device main body 1, wherein two air inlet header pipes 3 are installed at the top end of the device main body 1, a water outlet header pipe 4 is installed at the bottom side of the air inlet header pipes 3, a gas outlet header pipe 5 is installed at the bottom side of the water outlet header pipe 4, the two air inlet header pipes 3, the two water outlet header pipes 4 and the two gas outlet header pipes 5 are respectively arranged, four air inlet branch pipes 301 are installed between the air inlet header pipes 3, four water outlet branch pipes 401 are installed between the water outlet header pipes 4, four gas outlet branch pipes 501 are installed between the gas outlet header pipes 5, an air inlet system support 9 is installed between the air inlet header pipes 3 and the water outlet header pipes 4, and a purifier gas outlet pipe 604 is installed between the water outlet header pipes 4 and the gas outlet header pipes 5.

Furthermore, seven purifiers 6 are installed at the bottom end of the air inlet branch pipe 301, a purifier air inlet 601 is installed at the top end of the purifier 6, a vortex guide vane 602 is installed at the bottom side of the purifier air inlet 601, a purifier air outlet 603 is installed at the bottom side of the vortex guide vane 602, a water collecting chamber 605 is installed at the bottom side of the purifier air outlet 603, a water collecting chamber outlet is installed at the bottom end of the water collecting chamber, the purifier 6 is of a cylindrical pipeline structure, the air inlet branch pipe 301 and the water outlet branch pipe 401 are connected through a purifier 6 pipeline, the water outlet branch pipe 401 and the air outlet branch pipe 501 are connected through a purifier 6 pipeline, the purifier 6 penetrates the water outlet branch pipe 401 from the bottom end of the air inlet branch pipe 301 to the top end of the air outlet branch pipe 501, the gas containing low-concentration water mist enters the air inlet header 3 from the air inlet 2 of the device, is distributed to the air inlet branch pipes 301 by the air header 3, and then enters the purifier 6 from the air inlet branch pipe 301, and the gas containing low-concentration water mist flowing at high speed enters from the purifier air inlet 601 of the purifier, the low-concentration gas is guided to rotate by the vortex guide vane 602 of the purifier 6 and rotates at a high speed, part of the water with high specific gravity and the air with high specific gravity than methane in the low-concentration gas is thrown to the outer layer in a vortex mode, the water and part of the air in the outer layer enter the water collecting chamber 605, then the water and part of the air are discharged into the water outlet branch pipe 401 from the outlet 6051 of the water collecting chamber and are collected to the water outlet main pipe 4, the water and part of the air are removed from the low-concentration gas in the central area of the vortex pipe of the purifier 6, the heat value is improved, the purified low-concentration gas is discharged into the gas outlet branch pipe 501 from the gas outlet 603 of the purifier through the vortex pipe dehydration purifier gas outlet pipe 604 and is collected to the gas outlet main pipe 5, the number of the purifiers 6 is increased or reduced according to the selection of a user according to the inlet and outlet amount of actual gas.

A water return pipe 701 is installed at one end of the water outlet main pipe 4, an air emptying device 7 is installed at the top end of the water return pipe 701, the air emptying device 7 is connected with the air outlet main pipe 5 through a water return pipe 701 through a pipeline, water collected to the water outlet pipe is discharged into a water seal pool through the water return pipe 701 to be recycled by a water mist supply system, and air in the water outlet main pipe 4 enters the water return pipe 701 and then enters the air emptying device 7 to be emptied.

Gas pipe 802 is installed to 5 one end of the house steward of giving vent to anger, spark arrester 801 is installed to the one end of gas pipe 802, gas emptying devices 8 is installed on the top of gas pipe 802, through gas pipe 802 pipe connection between gas emptying devices 8 and the house steward of giving vent to anger 5, collect the inside low concentration gas after purifying of house steward of giving vent to anger 5, carry into low concentration gas generating set gas air intake system as fuel supply low concentration gas generating set electricity generation by gas pipe 802 through spark arrester 801 again, the device starts the back before the generating set starts, the low concentration gas of device output is evacuated through gas emptying devices 8.

Explosion-proof valve 11 is all installed at inlet manifold 3, outlet manifold 4 and 5 both ends of the house steward of giving vent to anger, and inlet manifold 3, outlet manifold 4, the house steward 5 outside of giving vent to anger correspond inlet branch 301, outlet branch 401, outlet branch 501 department all is equipped with cleaning hole 10, and cleaning hole 10 is used for when maintaining device main part 1, is used for clearing up each branch pipe, and explosion-proof valve 11 is used for the interior pressure release of device main part 1, prevents the device explosion.

The air inlet header pipe 3 and the air outlet header pipe 5 are fixed through an air inlet system support 9, the air outlet header pipe 5 and the water outlet header pipe 4 are fixed through a purifier air outlet pipe 604, and the device main body 1 is of a three-layer structure and is connected and fixed through an exhaust system support and the purifier air outlet pipe 604 respectively.

Specifically, the device main body 1 is a three-layer structure and is respectively connected and fixed through an exhaust system support and a purifier outlet pipe 604, the water-mist-containing low-concentration gas enters an inlet manifold 3 from an inlet 2 of the device, is distributed to each inlet branch pipe 301 by the inlet manifold 3 and then enters a purifier 6 from the inlet branch pipes 301, the high-speed flowing water-mist-containing low-concentration gas entering from an inlet 601 of the purifier is guided and rotated by a vortex guide vane 602 of the purifier 6 to rotate downwards at a high speed, the water with large specific gravity and the air with large specific gravity than methane in the low-concentration gas are spun and thrown to the outer layer, the water and part of the air in the outer layer enter a water collecting chamber 605 and then are discharged into an outlet branch pipe 401 from an outlet 6051 of the water collecting chamber, are collected to an outlet manifold 4, the water collected to a water outlet pipe is discharged into a water seal tank through a water return pipe 701 to be recycled, the air in the outlet manifold 4 enters a water return pipe 701 and then enters an air emptying device 7, the water and part of air are removed from the low-concentration gas in the central area of the vortex tube of the purifier 6, the heat value is improved, the purified low-concentration gas is discharged into the gas outlet branch pipe 501 from the gas outlet 603 of the purifier through the gas outlet pipe 604 of the vortex tube dehydration purifier, then is collected into the gas outlet main pipe 5, and is collected into the purified low-concentration gas in the gas outlet main pipe 5, and then is conveyed into a gas inlet system of the low-concentration gas generator set through the flame arrester 801 by the gas conveying pipe 802 to be used as fuel for the low-concentration gas generator set to generate electricity, before the generator set is started after the device is started, the low-concentration gas output by the device is emptied through the gas emptying device 8, when the cleaning hole 10 is used for maintaining the device main body 1, the cleaning branch pipes are used for cleaning the explosion-proof valve 11 for relieving the pressure when the device main body 1 operates, and the device is prevented from exploding.

The utility model separates partial air through the purifier 6, improves the heat value of low-concentration gas, reduces the shutdown rate of the gas generator set, enlarges the utilization range of the low-concentration gas through improving the low-concentration heat value, can ensure that the original ultra-low-concentration gas which occupies more than about 35 percent of the total gas discharge capacity and cannot be directly utilized by the low-concentration gas generator set due to the over low heat value can be used for generating electricity by the low-concentration gas generator set, and adopts the mode that the air inlet system, the water discharge system, the air outlet system, the branch pipes and the main pipe are respectively arranged, and the vortex pipe dehydration purifier 6 is exposed and separately packaged, thereby being convenient for inspection and cleaning and convenient for maintenance.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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. A device for dehydrating, purifying and improving the calorific value of low-concentration gas in a coal mine by a vortex tube comprises a device main body (1), it is characterized in that two air inlet main pipes (3) are arranged at the top end of the device main body (1), a water outlet main pipe (4) is arranged at the bottom side of the air inlet main pipe (3), an air outlet main pipe (5) is arranged at the bottom side of the water outlet main pipe (4), the number of the air inlet header pipe (3), the water outlet header pipe (4) and the air outlet header pipe (5) is two, four air inlet branch pipes (301) are arranged between the air inlet header pipes (3), four water outlet branch pipes (401) are arranged between the water outlet header pipes (4), four air outlet branch pipes (501) are arranged between the air outlet header pipes (5), an air inlet system bracket (9) is arranged between the air inlet header pipe (3) and the water outlet header pipe (4), and a purifier air outlet pipe (604) is arranged between the water outlet main pipe (4) and the air outlet main pipe (5).

2. The coal mine low-concentration gas vortex tube dehydration, purification and calorific value improvement device according to claim 1, wherein seven purifiers (6) are installed at the bottom end of the gas inlet branch tube (301), a purifier gas inlet (601) is installed at the top end of each purifier (6), a vortex guide vane (602) is installed at the bottom side of the purifier gas inlet (601), a purifier gas outlet (603) is installed at the bottom side of each vortex guide vane (602), a water collection chamber (605) is installed at the bottom side of each purifier gas outlet (603), and a water collection chamber outlet (6051) is installed at the bottom end of each water collection chamber (605).

3. The coal mine low-concentration gas vortex tube dehydration, purification and calorific value improvement device according to claim 2, wherein the purifier (6) is of a cylindrical pipeline structure, the gas inlet branch tube (301) and the water outlet branch tube (401) are connected through the purifier (6) through a pipeline, the water outlet branch tube (401) and the gas outlet branch tube (501) are connected through the purifier (6) through a pipeline, and the purifier (6) penetrates through the water outlet branch tube (401) from the bottom end of the gas inlet branch tube (301) to the top end of the gas outlet branch tube (501).

4. The coal mine low-concentration gas vortex tube dehydration, purification and calorific value increasing device according to claim 1, wherein a water return pipe (701) is installed at one end of the water outlet main pipe (4), an air emptying device (7) is installed at the top end of the water return pipe (701), and the air emptying device (7) is connected with the gas outlet main pipe (5) through a water return pipe (701) in a pipeline mode.

5. The coal mine low-concentration gas vortex tube dehydration, purification and calorific value increasing device according to claim 1, wherein a gas pipe (802) is installed at one end of the gas outlet main pipe (5), a flame arrester (801) is installed at one end of the gas pipe (802), a gas emptying device (8) is installed at the top end of the gas pipe (802), and the gas emptying device (8) is connected with the gas outlet main pipe (5) through a gas pipe (802) pipeline.

6. The coal mine low-concentration gas vortex tube dehydration, purification and calorific value improvement device according to claim 1, wherein two ends of the air inlet main pipe (3), the water outlet main pipe (4) and the air outlet main pipe (5) are respectively provided with an explosion-proof valve (11), and cleaning holes (10) are formed in positions corresponding to the air inlet branch pipe (301), the water outlet branch pipe (401) and the air outlet branch pipe (501) on the outer sides of the air inlet main pipe (3), the water outlet main pipe (4) and the air outlet main pipe (5).

7. The coal mine low-concentration gas vortex tube dehydration, purification and heating value improving device according to claim 1, characterized in that the air inlet main pipe (3) and the air outlet main pipe (5) are fixed through an air inlet system support (9), and the air outlet main pipe (5) and the water outlet main pipe (4) are fixed through a purifier air outlet pipe (604).