CN204330243U - A kind of borehole sealing pick-up unit - Google Patents
A kind of borehole sealing pick-up unit Download PDFInfo
- Publication number
- CN204330243U CN204330243U CN201420797780.2U CN201420797780U CN204330243U CN 204330243 U CN204330243 U CN 204330243U CN 201420797780 U CN201420797780 U CN 201420797780U CN 204330243 U CN204330243 U CN 204330243U
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- CN
- China
- Prior art keywords
- surge tank
- gas
- boring
- connector
- drainage pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of borehole sealing pick-up unit, the gas outlet comprising surge tank and be communicated with surge tank, the end of gas outlet is communicated with the gas drainage pipe in boring by connector, and the elastic sealing ring be set on gas drainage pipe is provided with in the end of connector, the length of elastic sealing ring is greater than the length that gas drainage pipe stretches out from boring, in the both sides of connector, handle is set respectively, head is rotationally connected by handle, extruding elastic sealing ring, make it that deformation occur and close boring, surge tank is provided with air intake opening, reversal valve, tensimeter and safety valve, the keying of air intake opening is controlled by reversal valve, pressure release is carried out by safety valve, reversal valve is closed after surge tank charged pressure gas, and the variation of gauge hand detects the sealing of boring before and after being closed by reversal valve.The utility model judges that by tensimeter the change of air pressure in the surge tank be communicated with gas drainage pipe detects the whether good seal of holing, and structure is simple, and easy to operate, accuracy rate is high.
Description
Technical field
The utility model belongs to control of coalmine gas equipment, when carrying out gas extraction especially by boring, for the pick-up unit to borehole sealing.
Background technology
In recent years, along with the raising of shaft production Mechanization Level and intensive degree, a lot of mining area all enters deep mining, and gas emission sharply increases.Gas in coal seam extracted out in time and is used, both can prevent and reduce the generation of colliery major gas accident, ensureing the safety of mine, the environment in mining area can be protected again, obtain good economic benefit and social benefit.
When carrying out gas control, conventional method is, hole in coal seam, gas drainage pipe is stretched in boring, then inject cement grout in boring, with the space between shutoff boring and gas drainage pipe, and this space is air tight after will ensureing shutoff, and by the gas drainage pipe in boring, the gas in boring is discharged, simultaneously, when drawing out methane with gas drainage pipe, the extraction that can not affect gas because of borehole circumference gas leakage.
Known by above-mentioned analysis, the effect of bore closed will directly have influence on the gas drainage results of gas in boring, but the sealing effect of device unspecial in the prior art to boring detects.
Utility model content
The purpose of this utility model is to provide a kind of borehole sealing pick-up unit, detects by the change of air pressure in the surge tank that is communicated with gas drainage pipe the whether good seal of holing.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of borehole sealing pick-up unit, the gas outlet comprising surge tank and be communicated with surge tank, the end of gas outlet is communicated with the gas drainage pipe in boring by connector, and the elastic sealing ring be set on gas drainage pipe is provided with in the end of connector, the length of elastic sealing ring is greater than the length that gas drainage pipe stretches out from boring, in the both sides of connector, handle is set respectively, head is rotationally connected by handle, extruding elastic sealing ring, make it that deformation occur and close boring, surge tank is provided with air intake opening, reversal valve, tensimeter and safety valve, the keying of air intake opening is controlled by reversal valve, pressure release is carried out by safety valve, reversal valve is closed after surge tank charged pressure gas, and the variation of gauge hand detects the sealing of boring before and after being closed by reversal valve.
Further the theft-resistant link chain with earth surface is installed on described handle, the electrostatic produced in rotation process is imported underground.
Further, a valve is set, to close the detection that gas outlet carries out surge tank and gas outlet sealing between described gas outlet and rapid-acting coupling.
Compared with prior art, the utility model has following beneficial effect:
First, the utility model is by arranging surge tank, and effective to surge tank and gas drainage gas outlet is connected, by passing into the gas of certain pressure in surge tank, and to judge to hole whether good seal according to the change of air pressure, when borehole sealing is good, the gauge hand on surge tank there will not be variation, when borehole sealing position has gas leakage to occur, gauge hand reading will reduce;
The second, the surge tank in the utility model can for gas outlet provides buffering in the process of inflating in gas outlet, to avoid being filled with suddenly the explosion that a large amount of gases at high pressure cause gas outlet in gas outlet;
3rd, the one end near connector on gas outlet in the utility model arranges valve, can before detecting borehole sealing, and close this valve, whether detection surge tank and gas outlet leak gas, to improve the accuracy that the utility model detects borehole sealing;
4th, the handle in the utility model, connector arranged is convenient to rotate handle, and handle arranges theft-resistant link chain, and the electrostatic produced in rotation process is introduced underground, to avoid the potential safety hazard caused by electrostatic;
5th, the utility model arranges the elastic sealing ring that can be set on gas drainage pipe in one end of connector, and the length due to elastic sealing ring is greater than the length that gas drainage pipe stretches out from boring, therefore, when to be rotationally connected, extruding is produced to elastic sealing ring, make it that elastic deformation occur, then by bore closed, and prevent from leaking air between boring and connector, affect the accuracy to borehole sealing effect detection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional view of the utility model Elastic sealing ring.
Mark in figure: 1, surge tank, 2, gas outlet, 3, connector, 301, elastic sealing ring, 4, gas drainage pipe, 5, handle, 6, theft-resistant link chain, 7, air intake opening, 8, reversal valve, 9, tensimeter, 10, safety valve.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
As shown in the figure, a kind of borehole sealing pick-up unit, the gas outlet 2 comprising surge tank 1 and be communicated with surge tank 1, gas outlet 2 is high-pressure hose, its good pressure-resistant performance, can prevent that gas outlet 2 pressure is excessive to burst, the tank body of surge tank 1 is provided with air intake opening 7, control reversal valve 8 that air intake opening 7 opens and closes, the tensimeter 9 of instruction surge tank 1 internal gas pressure and the safety valve 10 that loses heart for surge tank 1.
The end of described gas outlet 2 is threaded connection the one end being tightened on a connector 3, the other end of connector 3 is fixedly installed the elastic sealing ring 301 be made up of rubber, and elastic force can be overcome under external force be set in the gas drainage pipe 4 that stretches out in coal bed drilling, and the internal diameter of elastic sealing ring 301 is less than the external diameter of gas drainage pipe 4, the length of elastic sealing ring 301 is less than the length that gas drainage pipe 4 stretches out boring simultaneously, a handle 5 for being rotationally connected 3 is set in connector both sides, wherein a handles 5 be provided with one with the theft-resistant link chain 6 of earth surface, electrostatic for being produced by connector 3 rotation process imports ground in time, to avoid danger.
In order to ensure the accuracy detected borehole sealing, to detect the impermeability of this device itself before testing, therefore, gas outlet 2 arranging valve near connector 3 one end, carries out the bubble-tight detection of surge tank 1 with closed gas outlet 2.
During use, the elastic sealing ring 301 be connected with on the connector 3 of gas outlet 2 to be set in boring the gas drainage pipe 4 that stretches out, the end of elastic sealing ring 301 is made to withstand on boring coal seam around, and swing handle 5, overcome the elastic force of elastic sealing ring 301, make it that elastic deformation occur, hold out against on the coal seam around boring, hell is closed, in the process of swing handle 5, described theft-resistant link chain 6 remains the contact with ground, the electrostatic produced is imported ground, then pneumatic pump is connected with the air intake opening 7 of surge tank 1, open reversal valve 8, and the valve of closing on gas outlet 2, open pneumatic pump again and squeeze into forced air to surge tank 1, then reversal valve 8 and pneumatic pump is closed, after a period of time, whether the total indicator reading observing tensimeter 9 changes, if tensimeter 9 total indicator reading reduces, then need to check this device, get rid of principal fault, if tensimeter 9 pointer does not change, this device then can be utilized to carry out leak check to boring.
This device is when impermeability is good on inspection, slowly open the valve on gas outlet 2, tensimeter 9 total indicator reading now on surge tank 1 reduces, after tensimeter 9 pointer is stable, open reversal valve 8, and open pneumatic pump, pass into gas-pressurized wherein, arrive the centre position of tensimeter 9 to tensimeter 9 pointer, then close reversal valve 8 and pneumatic pump, after a period of time, whether the reading observing tensimeter 9 pointer changes, if tensimeter 9 total indicator reading reduces, then illustrate that borehole sealing is bad, otherwise then illustrate that borehole sealing is good.
When pneumatic pump passes into forced air in surge tank 1, if surge tank 1 internal gas pressure reaches its setting value, safety valve 10 can be backed down under gas pressure, outwards be lost heart by safety valve 10, to ensure the safety of surge tank 1.
Claims (3)
1. a borehole sealing pick-up unit, it is characterized in that: the gas outlet (2) comprising surge tank (1) and be communicated with surge tank (1), the end of gas outlet (2) is communicated with the gas drainage pipe (4) in boring by connector (3), and the elastic sealing ring (301) be set on gas drainage pipe (4) is provided with in the end of connector (3), the length of elastic sealing ring (301) is greater than the length that gas drainage pipe (4) stretches out from boring, in the both sides of connector (3), handle (5) is set respectively, head (3) is rotationally connected by handle (5), extruding elastic sealing ring (301), make it that deformation occur and close boring, surge tank (1) is provided with air intake opening (7), reversal valve (8), tensimeter (9) and safety valve (10), the keying of air intake opening (7) is controlled by reversal valve (8), pressure release is carried out by safety valve (10), reversal valve (8) is closed after surge tank (1) charged pressure gas, and the variation of tensimeter (9) pointer detects the sealing of boring before and after being closed by reversal valve (8).
2. a kind of borehole sealing pick-up unit according to claim 1, is characterized in that: at the theft-resistant link chain (6) of the upper installation of described handle (5) with earth surface, the electrostatic produced in rotation process is imported underground.
3. a kind of borehole sealing pick-up unit according to claim 1, is characterized in that: arrange a valve between described gas outlet (2) and connector (3), to detect the impermeability of surge tank (1) after closing gas outlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797780.2U CN204330243U (en) | 2014-12-17 | 2014-12-17 | A kind of borehole sealing pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797780.2U CN204330243U (en) | 2014-12-17 | 2014-12-17 | A kind of borehole sealing pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204330243U true CN204330243U (en) | 2015-05-13 |
Family
ID=53166593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797780.2U Expired - Fee Related CN204330243U (en) | 2014-12-17 | 2014-12-17 | A kind of borehole sealing pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204330243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663169A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Airtight detecting apparatus and method |
| CN114112227A (en) * | 2021-11-08 | 2022-03-01 | 陕西飞机工业有限责任公司 | Air tightness inspection method and device |
-
2014
- 2014-12-17 CN CN201420797780.2U patent/CN204330243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663169A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Airtight detecting apparatus and method |
| CN114112227A (en) * | 2021-11-08 | 2022-03-01 | 陕西飞机工业有限责任公司 | Air tightness inspection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |