CN204347021U - Coal mine methane alarm quality detection device - Google Patents
Coal mine methane alarm quality detection device Download PDFInfo
- Publication number
- CN204347021U CN204347021U CN201520029799.7U CN201520029799U CN204347021U CN 204347021 U CN204347021 U CN 204347021U CN 201520029799 U CN201520029799 U CN 201520029799U CN 204347021 U CN204347021 U CN 204347021U
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- CN
- China
- Prior art keywords
- methane
- housing
- draft tube
- cavity
- alarm
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- 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
This Coal mine methane alarm quality detection device, comprises surrounding enclosed interior and is provided with the housing of cavity, the draft tube I being connected to enclosure interior cavity and draft tube II, is connected to the methane gas tank of draft tube I end, is arranged in draft tube I and draft tube II respectively and is respectively arranged with electrically-controlled valve I and electrically-controlled valve II.First methane alarm is inserted in the mouth of pipe, and wrapped by rubber sleeve, therefore also achieve the isolating seal with extraneous air.Cavity in housing 1 is separated isolation by spacer assembly afterwards.Electrically-controlled valve I and the electrically-controlled valve II of front end are opened, and air is entered by draft tube II and methane in methane gas tank is entered by draft tube I, thus in the cavity of housing 1, form the methane blended test gas of the minimum measurement concentration of methane alarm.Spacer assembly is opened afterwards, and test gas enters the mouth of pipe and goes out, if the methane gas that methane alarm measures Cmin sends chimes of doom, proves the up-to-standard of this methane alarm.
Description
Technical field
The utility model relates to product quality pick-up unit, is specifically related to a kind of Coal mine methane alarm quality detection device.
Background technology
In colliery, air methane content is when 5%-16%, and meeting fire will set off an explosion, and is therefore provided with a large amount of methane alarms in colliery.But the methane alarm quality after installing cannot detecting device whether qualified, therefore exist methane alarm due to mass defect cause cannot and the security incident of alarm.
Summary of the invention
The utility model, in order to overcome the deficiency of above technology, provides a kind of Coal mine methane alarm quality detection device can conveniently checking Coal mine methane alarm quality whether qualified.
The utility model overcomes the technical scheme that its technical matters adopts:
This Coal mine methane alarm quality detection device, comprise the housing that surrounding enclosed interior is provided with cavity, be connected to draft tube I and the draft tube II of enclosure interior cavity, be connected to the methane gas tank of draft tube I end, be arranged at respectively in draft tube I and draft tube II and be respectively arranged with electrically-controlled valve I and electrically-controlled valve II, be provided with in described housing and cavities seals is separated into two-part spacer assembly, the rear end housing of described spacer assembly is respectively arranged with the mouth of pipe and vacuum pump, described vacuum pump is connected to cavity by exhausr port, described mouth of pipe outer end is provided with rubber sleeve, the endoporus aperture of the described mouth of pipe is greater than the external diameter of methane alarm, the endoporus aperture of described rubber sleeve is less than the external diameter of methane alarm.
Above-mentioned spacer assembly comprises and is installed on valve plate in housing by axis of rotation and around inlaying the sealing gasket be installed in shell inner surface, described rotating shaft is connected to the output shaft of motor II, the outward flange of described valve plate is sphere, when valve plate turns to vertical state, the sphere of described valve plate outer ring contacts with sealing gasket.
In order to make methane test gas mix, also comprise the motor I being arranged at housing forward end, flabellum to be arranged in the cavity in housing and to be installed on the output shaft of motor I.
In order to make Concentration Testing accurate, be positioned on front side of valve plate and be separately installed with sensing methane concentration device I and sensing methane concentration device II in above-mentioned housing 1, described sensing methane concentration device I is near flabellum place, and described sensing methane concentration device II is near valve plate place.
In order to improve sealing during fixing methane alarm, the outer ring of above-mentioned rubber sleeve is provided with clip.
The beneficial effects of the utility model are: first inserted in the mouth of pipe by methane alarm, and are wrapped by rubber sleeve, therefore also achieve the isolating seal with extraneous air.Cavity in housing 1 is separated isolation by spacer assembly afterwards.Electrically-controlled valve I and the electrically-controlled valve II of front end are opened, and air is entered by draft tube II and methane in methane gas tank is entered by draft tube I, thus in the cavity of housing 1, form the methane blended test gas of the minimum measurement concentration of methane alarm.Spacer assembly is opened afterwards, and test gas enters the mouth of pipe and goes out, and is measured by methane alarm, if the methane gas that methane alarm measures Cmin sends chimes of doom, proves the up-to-standard of this methane alarm, otherwise at quality existing defects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1. housing 2. motor I 3. flabellum 4. methane gas tank 5. draft tube I 6. electrically-controlled valve I 7. draft tube II 8. electrically-controlled valve II 9. sensing methane concentration device I 10. sensing methane concentration device II 11. sealing gasket 12. valve plate 13. rotating shaft 14. sphere 15. exhausr port 16. vacuum pump 17. mouth of pipe 18. rubber sleeve 19. clip 20. methane alarm.
Embodiment
Be described further below in conjunction with accompanying drawing 1 pair of the utility model.
This Coal mine methane alarm quality detection device, comprise the housing 1 that surrounding enclosed interior is provided with cavity, be connected to draft tube I 5 and the draft tube II 7 of housing 1 internal cavities, be connected to the methane gas tank 4 of draft tube I 5 end, be arranged at respectively in draft tube I 5 and draft tube II 7 and be respectively arranged with electrically-controlled valve I 6 and electrically-controlled valve II 8, be provided with in housing 1 and cavities seals is separated into two-part spacer assembly, the rear end housing 1 of spacer assembly is respectively arranged with the mouth of pipe 17 and vacuum pump 16, vacuum pump 16 is connected to cavity by exhausr port 15, the mouth of pipe 17 outer end is provided with rubber sleeve 18, the endoporus aperture of the mouth of pipe 17 is greater than the external diameter of methane alarm 20, the endoporus aperture of rubber sleeve 18 is less than the external diameter of methane alarm 20.During use, first methane alarm 20 is inserted in the mouth of pipe 17, and wrapped by rubber sleeve 18, therefore also achieve the isolating seal with extraneous air.Cavity in housing 1 is separated isolation by spacer assembly afterwards.Electrically-controlled valve I 6 and the electrically-controlled valve II 8 of front end are opened, air is entered by draft tube II 7 and methane in methane gas tank 4 is entered by draft tube I 5, thus in the cavity of housing 1, form the methane blended test gas of the minimum measurement concentration of methane alarm 20.Spacer assembly is opened afterwards, and test gas enters the mouth of pipe 17 and goes out, and is measured by methane alarm 20, if the methane gas that methane alarm 20 measures Cmin sends chimes of doom, proves the up-to-standard of this methane alarm 20, otherwise at quality existing defects.
Spacer assembly can be following structure, it comprises and rotates by rotating shaft 13 valve plate 12 that is installed in housing 1 and around inlaying the sealing gasket 11 be installed on housing 1 inside surface, rotating shaft 13 is connected to the output shaft of motor II, the outward flange of valve plate 12 is sphere 14, when motor II drive valve plate 12 turns to vertical state, the sphere 14 of valve plate 12 outer ring contacts with sealing gasket 11.Cavity now in housing 1 is divided into two parts by valve plate sealing is isolated, the mouth of pipe 17 place of rear end and front end isolated.Make when motor II drive valve plate 12 turns to horizontal body, the cavity conducting in housing 1, now test gas can enter into the mouth of pipe 17 place.
Can also comprise the motor I 2 being arranged at housing 1 front end, flabellum 3 to be arranged in the cavity in housing 1 and to be installed on the output shaft of motor I 2.When methane gas tank 4 and after entering into cavity build-in test gas by draft tube II 7, motor I 2 rotating drive flabellum 3 rotates and is stirred by test gas in cavity, the concentration of methane gas is evenly distributed in test gas, improves the accuracy of test result.
Be positioned on front side of valve plate 12 and be separately installed with sensing methane concentration device I 9 and sensing methane concentration device II 10 in housing 1, sensing methane concentration device I 9 is near flabellum 3 place, and sensing methane concentration device II 10 is near valve plate 12 place.By one in front and one in back arranging two sensing methane concentration devices, the methane concentration value of the test gas in cavity can be measured more accurately, making the minimum measured value of itself and methane alarm 20 more close, therefore improve the reliability of detection.
The outer ring of rubber sleeve 18 can be provided with clip 19.Clamped by clip 119 after methane alarm 20 is fixing by rubber sleeve 18, sealing can improved further, preventing from environmental gas from entering causing methane alarm 20 inaccurate situation of reporting to the police to occur.
Claims (5)
1. a Coal mine methane alarm quality detection device, it is characterized in that: comprise the housing (1) that surrounding enclosed interior is provided with cavity, be connected to draft tube I (5) and the draft tube II (7) of housing (1) internal cavities, be connected to the methane gas tank (4) of draft tube I (5) end, be arranged at respectively in draft tube I (5) and draft tube II (7) and be respectively arranged with electrically-controlled valve I (6) and electrically-controlled valve II (8), be provided with in described housing (1) and cavities seals is separated into two-part spacer assembly, the rear end housing (1) of described spacer assembly is respectively arranged with the mouth of pipe (17) and vacuum pump (16), described vacuum pump (16) is connected to cavity by exhausr port (15), the described mouth of pipe (17) outer end is provided with rubber sleeve (18), the endoporus aperture of the described mouth of pipe (17) is greater than the external diameter of methane alarm (20), the endoporus aperture of described rubber sleeve (18) is less than the external diameter of methane alarm (20).
2. Coal mine methane alarm quality detection device according to claim 1, it is characterized in that: described spacer assembly comprises and rotates by rotating shaft (13) valve plate (12) that is installed in housing (1) and around inlaying the sealing gasket (11) be installed on housing (1) inside surface, described rotating shaft (13) is connected to the output shaft of motor II, the outward flange of described valve plate (12) is sphere (14), when valve plate (12) turns to vertical state, the sphere (14) of described valve plate (12) outer ring contacts with sealing gasket (11).
3. Coal mine methane alarm quality detection device according to claim 1 and 2, it is characterized in that: also comprise the motor I (2) being arranged at housing (1) front end, flabellum (3) to be arranged in the cavity in housing (1) and to be installed on the output shaft of motor I (2).
4. Coal mine methane alarm quality detection device according to claim 2, it is characterized in that: be positioned at valve plate (12) front side and be separately installed with sensing methane concentration device I (9) and sensing methane concentration device II (10) in described housing (1), described sensing methane concentration device I (9) is near flabellum (3) place, and described sensing methane concentration device II (10) is near valve plate (12) place.
5. Coal mine methane alarm quality detection device according to claim 3, is characterized in that: the outer ring of described rubber sleeve (18) is provided with clip (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029799.7U CN204347021U (en) | 2015-01-16 | 2015-01-16 | Coal mine methane alarm quality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029799.7U CN204347021U (en) | 2015-01-16 | 2015-01-16 | Coal mine methane alarm quality detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204347021U true CN204347021U (en) | 2015-05-20 |
Family
ID=53230282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029799.7U Expired - Fee Related CN204347021U (en) | 2015-01-16 | 2015-01-16 | Coal mine methane alarm quality detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204347021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547908A (en) * | 2016-01-22 | 2016-05-04 | 贵州大学 | Experimental testing equipment for mixed gas adsorption capacity of coal rock/shale |
-
2015
- 2015-01-16 CN CN201520029799.7U patent/CN204347021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547908A (en) * | 2016-01-22 | 2016-05-04 | 贵州大学 | Experimental testing equipment for mixed gas adsorption capacity of coal rock/shale |
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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: 20150520 Termination date: 20160116 |
|
| EXPY | Termination of patent right or utility model |