CN202187791U - Coal mine gas anti-explosion device - Google Patents
Coal mine gas anti-explosion device Download PDFInfo
- Publication number
- CN202187791U CN202187791U CN2011202813770U CN201120281377U CN202187791U CN 202187791 U CN202187791 U CN 202187791U CN 2011202813770 U CN2011202813770 U CN 2011202813770U CN 201120281377 U CN201120281377 U CN 201120281377U CN 202187791 U CN202187791 U CN 202187791U
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- tank body
- gas
- explosion
- inlet pipe
- coal mine
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Abstract
The utility model relates to a coal mine gas anti-explosion device, which belongs to the field of anti-explosion safe devices for drawing and discharging gas under a coal mine and comprises a circular tank body. The technical point is that a gas inlet pipe and a gas outlet pipe are respectively arranged on the two sides of the tank body, the gas inlet pipe is in a right-angle structure, one end of the gas inlet pipe located in the tank body is towards the lower portion, a gap is retained between the end of the gas inlet pipe and the tank body, a water discharge opening is arranged on one side under the tank body, a gas outlet of the gas outlet pipe is located on the position opposite to the direction of the gas inlet pipe, a buffer spring device is arranged at the top of the tank body. The coal mine gas anti-explosion device has the advantages of improving safety performance of equipment, removing potential safety hazards and being stable and reliable in working.
Description
Technical field
The utility model belongs to the anti-explosive safety device field of colliery extraction fire damp, is specifically related to a kind of coal mine gas explosion-proof apparatus.
Background technology
" dry type draws out methane in the pump suction side pipe-line system, must be equiped with the safety device of anti-backfire, anti feedback and explosion-proof according to " safety regulations in coal mine " the 146 regulation; And make regular check on, keep functional ".
There is design defect in existing " constant water level hydrolock explosion-proof apparatus ": the one, and when blasting, the gland moment on the tank body top pressure relief mouth is washed open by the air-flow in the tank body, and gland may be shaken off fastening devices and fly out and hurt sb.'s feelings or cause security incident; The 2nd, the explosion-proof bolt assembly is common carbon junction steel material, and it is one that the time has been grown very easily corrosion, and gland can not in time be opened when causing release, has lost the explosion-proof meaning of release; The 3rd, air inlet and exhaust piper is provided with unreasonable, is unfavorable for the suction discharging of methane gas.
The utility model content
The purpose of the utility model is the deficiency to prior art, through improving and optimizating equipment inner structure, increases safety attachment, provides a kind of and can improve device ', eliminates safe hidden trouble stable and reliable operation coal mine gas explosion-proof apparatus.
For achieving the above object, the utility model is realized through following technical scheme:
Be a kind of coal mine gas explosion-proof apparatus, comprise circular tank body, the present technique main points are to be respectively equipped with gas inlet pipe and gas exhaust pipe in the tank body both sides; The rectangular structure of gas inlet pipe; Gas inlet pipe is positioned at an end of tank body towards the below, leaves the gap between its end and the tank base, and a side of tank body below is provided with discharge opening; The gas outlet of gas exhaust pipe is positioned at the rightabout of gas inlet pipe, and the tank body top is provided with relief port, relief port gland and buffering spring assembly.
Pass through explosion-proof bolt assembly positioning and fixing between described relief port and the relief port gland.
Described buffer spring device is become with the buffering groups of springs by the buffer spring support, and buffer spring is positioned at a side of buffer spring support.
Described explosion-proof bolt assembly is combined by bolt, neck bush and the fixed cover that resistant material is made successively, the application life that raising the utility model that like this can be indirect is whole.
One side of tank body is provided with automatic water-replenishing device, and this automatic water-replenishing device is through the bottom UNICOM of pipeline and tank interior, and like this, water level is constant in the guarantee tank body that can be in good time.
After the above-mentioned improvement of the utility model process, described coal mine gas explosion-proof apparatus, the buffer spring device is established at the tank body top, has avoided gland to fly out and has hurted sb.'s feelings, and causes the accident; Explosion-proof bolt assembly neck bush changes aluminium or stainless steel into, has solved the corrosion problem; Cooperating between explosion-proof bolt assembly neck bush and the fixed cover, the impact force during according to release is carried out mechanical analysis and is calculated, and confirms to adopt interference fit; Its magnitude of interference franchise is 0.01～0.02; Can guarantee the reliability that cooperates, therefore gland in time, open fast has and can improve device ' when having guaranteed release again; Eliminate safe hidden trouble the stable and reliable operation advantage.
Description of drawings
Fig. 1 is the utility model one example structure sketch map.
Fig. 2 is an explosion-proof bolt modular construction enlarged diagram.
Fig. 3 is gland and positioning device structure enlarged diagram.
Among the figure: 1, air inlet pipe; 2, tank body; 3, buffer spring support; 4, buffer spring; 5, relief port; 6, gland; 7, explosion-proof bolt assembly; 8, stack; 9, automatic water-replenishing device; 10, lower margin; 11, discharge opening; 12, bolt; 13, neck bush; 14, fixed cover; 15, gland rotating shaft; 16, gland locating support; 17, nut.
The specific embodiment:
In conjunction with Figure of description the utility model is done further explain.
Like Fig. 1, Fig. 2 and shown in Figure 3, this coal mine gas explosion-proof apparatus comprises circular tank body 2; The present technique main points are to be respectively equipped with gas inlet pipe 1 and gas exhaust pipe 8 in tank body 2 both sides, gas inlet pipe 1 rectangular structure, and gas inlet pipe 1 is positioned at an end of tank body 2 towards the below; Leave the gap between its end and tank body 2 bottoms; With firedamp drainage gas smoothly, a side of tank body 2 belows is provided with discharge opening 11, and the gas outlet of gas exhaust pipe 8 is positioned at the rightabout of gas inlet pipe 1; Tank body 2 tops are provided with relief port, relief port gland and buffering spring assembly, and lower margin 10 is used for installing and fixing tank body 2.
Air inlet pipe 1 can adopt GB flange right-angle elbow pipe and GB flange straight tube respectively with stack 8; Replaced two nonstandard elbows of intrinsic inlet and outlet mouth, guaranteed that not only the methane gas discharging is smooth and easy, and saved material; Manufacturing process is simple, has guaranteed versatility and interchangeability.
The top of tank body 2 is provided with the relief port, passes through explosion-proof bolt assembly 7 positioning and fixing between relief port 5 and the relief port gland 6.
Said buffer spring device is made up of buffer spring support 3 and buffering spring 4, and buffer spring 4 is positioned at a side of buffer spring support 3.
Described explosion-proof bolt assembly 7 is combined with fixed cover 14 by bolt 12 neck bush 13 that resistant material is made successively; Explosion-proof bolt assembly 7 tightens together with upper and lower two nuts 17 of relief port gland 6 usefulness; Fixed cover 14 is fixed on the outer wall of relief port 5 with welding manner; Because neck bush 13 adopts resistant material to make, the application life that raising the utility model that like this can be indirect is whole.
One side of tank body 2 is provided with automatic water-replenishing device 9; This automatic water-replenishing device 9 is through the bottom UNICOM of pipeline and tank body 2 inside; Like this, liquid level is constant in the guarantee tank body 2 that can be in good time, and the liquid level in jar should guarantee to make the air inlet pipe lower end there be not in the entry; With isolating with the retaining in the tank body 2 between air inlet pipe outlet and the stack inlet, play explosion-proof.
The course of work:
When drawing out methane; The open vacuum pump is negative pressure in the tank body 2, and fire damp gas gets in the water of tank body 2 bottoms through gas inlet pipe 1 along pipeline; The methane gas of from water, separating out gets into vacuum pump through stack 8, discharges (methane gas can be collected utilization) by vacuum pump.
Explosion-proof mechanism:
When methane gas chance naked light is blasted,, stop in tank body 2 thereby will explode because the water in the tank body 2 are isolated inlet and outlet pipeline.Rise sharply because of blast causes tank body 2 chamber pressures, the gland 6 on the relief port 5 receives tank body 2 inner chamber gas shocks, makes bolt 12 drive neck bush 13 and from fixed cover 14, extracts; Gland 6 is opened release by force; Release energy, gland 6 and gland rotating shaft 15 are installed on the relief port 5 through gland locating support 16, and 6 moments of gland this moment open; And around upwards upset of gland rotating shaft 15; Bump against buffer spring 4 back rebound resets, accomplished a stress-relief process, thereby ensured the anti-explosion safety of whole system.
As shown in Figure 1, the discharge opening 11 of tank body 2 bottoms is used to regularly replace the water in the tank body, and automatic water-replenishing device 9 is used for automatic water supplement after the water consumption, and this automatic water-replenishing device can adopt prior art equipment, is not described in detail at this.
After the above-mentioned improvement of utility model process, described coal mine gas explosion-proof apparatus, the buffer spring device is established at the tank body top, guarantees can promptly and accurately reset after its release; Explosion-proof bolt assembly neck bush changes aluminium or stainless steel into, has solved the corrosion problem; Cooperating between explosion-proof bolt assembly neck bush and the fixed cover, the impact force during according to release is carried out mechanical analysis and is calculated, and confirms to adopt interference fit; Its magnitude of interference franchise is 0.01～0.02; Can guarantee the reliability that cooperates, therefore gland in time, open fast has and can improve device ' when having guaranteed release again; Eliminate safe hidden trouble the stable and reliable operation advantage.
Claims (5)
1. a coal mine gas explosion-proof apparatus comprises circular tank body, it is characterized in that the tank body both sides are respectively equipped with gas inlet pipe and gas exhaust pipe; The rectangular structure of gas inlet pipe; Gas inlet pipe is positioned at an end of tank body towards the below, leaves the gap between its end and the tank base, and a side of tank body below is provided with discharge opening; The gas outlet of gas exhaust pipe is positioned at the rightabout of gas inlet pipe, and the tank body top is provided with relief port, relief port gland and buffering spring assembly.
2. coal mine gas explosion-proof apparatus according to claim 1 is characterized in that the buffer spring device is become with the buffering groups of springs by the buffer spring support, and buffer spring is positioned at a side of buffer spring support.
3. coal mine gas explosion-proof apparatus according to claim 1 is characterized in that the top of tank body is provided with the relief port, passes through explosion-proof bolt assembly positioning and fixing between relief port and the relief port gland.
4. coal mine gas explosion-proof apparatus according to claim 3 is characterized in that the explosion-proof bolt assembly is combined by bolt, neck bush and the fixed cover that resistant material is made successively.
5. coal mine gas explosion-proof apparatus according to claim 1 is characterized in that a side of tank body is provided with automatic water-replenishing device, and this automatic water-replenishing device is through the bottom UNICOM of pipeline and tank interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202813770U CN202187791U (en) | 2011-08-04 | 2011-08-04 | Coal mine gas anti-explosion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202813770U CN202187791U (en) | 2011-08-04 | 2011-08-04 | Coal mine gas anti-explosion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187791U true CN202187791U (en) | 2012-04-11 |
Family
ID=45919250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202813770U Expired - Lifetime CN202187791U (en) | 2011-08-04 | 2011-08-04 | Coal mine gas anti-explosion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187791U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179523A (en) * | 2014-08-20 | 2014-12-03 | 永贵能源开发有限责任公司 | Tempering and explosion prevention device for gas stations |
| CN105381559A (en) * | 2015-12-17 | 2016-03-09 | 天津骏睿科技有限公司 | Water seal type explosion prevention device |
| CN114992526A (en) * | 2022-06-22 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Large-pipe-diameter water-seal fire-retarding explosion-venting device and method for coal mine gas pipeline transportation |
-
2011
- 2011-08-04 CN CN2011202813770U patent/CN202187791U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179523A (en) * | 2014-08-20 | 2014-12-03 | 永贵能源开发有限责任公司 | Tempering and explosion prevention device for gas stations |
| CN105381559A (en) * | 2015-12-17 | 2016-03-09 | 天津骏睿科技有限公司 | Water seal type explosion prevention device |
| CN114992526A (en) * | 2022-06-22 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Large-pipe-diameter water-seal fire-retarding explosion-venting device and method for coal mine gas pipeline transportation |
| CN114992526B (en) * | 2022-06-22 | 2023-09-26 | 中煤科工集团重庆研究院有限公司 | Large-pipe-diameter water seal fire-retarding explosion venting device for coal mine gas pipeline transportation and explosion venting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG JINGGONG PUMPS CO., LTD. Free format text: FORMER NAME: BOSHAN JINGGONG PUMP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 255200 No. 11 hero West Road, Boshan District, Shandong, Zibo Patentee after: BOSHAN JINGGONG PUMPS CO., LTD. Address before: 255200 No. 11 hero West Road, Boshan District, Shandong, Zibo Patentee before: Boshan Jinggong Pumps Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |