CN202814669U - Air-tightness detecting device for mining door - Google Patents
Air-tightness detecting device for mining door Download PDFInfo
- Publication number
- CN202814669U CN202814669U CN 201220539918 CN201220539918U CN202814669U CN 202814669 U CN202814669 U CN 202814669U CN 201220539918 CN201220539918 CN 201220539918 CN 201220539918 U CN201220539918 U CN 201220539918U CN 202814669 U CN202814669 U CN 202814669U
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- CN
- China
- Prior art keywords
- air
- chamber door
- air seal
- seal case
- door
- 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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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a mining door, specifically relates to an air-tightness detecting device for a mining door. The device comprises an air seal box, an air inlet and a pressure relieving device which are arranged at the right side of the air seal box, and a chamber door arranged on the the air seal box, wherein the chamber door comprises a chamber door main body, a door frame arranged on the outer circumference of the chamber door main body, a transmission rod which penetrates the chamber door main body and is partly arranged in the air seal box, and hand wheels arranged at two ends of the transmission rod. The air-tightness detecting device is characterized in that the outer periphery of the door frame of the chamber door is fixed on the air seal box through a pressing device, and the air-tightness detecting device further comprises a differential pressure gauge arranged on the left side of the air seal box. Compared with the prior art, the air-tightness detecting device aims to monitor the changes of pressure difference, focuses on detecting the leakage rate of the door in sealing, and can reduce the errors in measurement, so as to achieve more accurate measurement.
Description
Technical field
The utility model relates to a kind of mining door, is exactly a kind of mining door air-tightness detection device specifically.
Background technology
The safety of mining in the industry is the matter of utmost importance of mining industry, in order to allow the miner can be more safe when having an accident, usually can be provided with avoiding system in the mine, and the requirement to the avoiding system sealing property can not be ignored especially.And also must meet this airtight requirement as " airtight blast door " of one of critical component of avoiding system.The requirement of sealing property when designing according to avoiding system, the monitoring of sealing property needs to reflect by the variable quantity of the pressure differential inside and outside the system, therefore adopt traditional check test method must increase the error of measurement, it is particularly necessary to work out the new check test method of a cover.
Summary of the invention
The utility model provides a kind of mining door air-tightness detection device in order to overcome the deficiencies in the prior art.
To achieve these goals, the utility model has designed a kind of mining door air-tightness detection device, comprises the air seal case, and the air intake opening and the pressure relief device that are arranged on air seal case right side, also comprises the chamber door that is arranged on the air seal case; The chamber door comprises the chamber door main body, and the doorframe that is arranged on chamber door main body cylindrical, also comprise a drive link that runs through in chamber door main body and the partial insertion air seal case, and the handwheel that is arranged on the drive link two ends, it is characterized in that: be fixed on the air seal case by hold down gag around the doorframe outer of chamber door, also comprise the differential pressure indicator that is arranged on air seal case left side.
Described hold down gag comprises a back-up block that is arranged on the air seal case, and a pressing plate that is connected with back-up block, and the front end riveting of pressing plate is on the doorframe of chamber door, and pressing plate is fastenedly connected by screw and air seal case.
Be provided with rubber weather strip between the doorframe of chamber door and the air seal case.
The utility model is compared with prior art, be with monitoring pressure poor be changed to purpose, the leakage rate of emphasis detecting gate when sealing can reduce the error when measuring, and makes the system of measurement more accurate.
Description of drawings
Fig. 1 is the structural representation of utility model.
Referring to Fig. 1,1 is the air seal case; 2 is air intake opening; 3 is pressure relief device; 4 is the chamber door main body; 5 is doorframe; 6 is drive link; 7 is differential pressure indicator; 8 is back-up block; 9 is pressing plate; 10 is screw; 11 is handwheel; 12 is rubber weather strip.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model comprises air seal case 1, and the air intake opening 2 and the pressure relief device 3 that are arranged on air seal case 1 right side, also comprises the chamber door that is arranged on the air seal case 1; The chamber door comprises chamber door main body 4, and the doorframe 5 that is arranged on chamber door main body 4 cylindricals, also comprise a drive link 6 that runs through in chamber door main body 4 and the partial insertion air seal case 1, and the handwheel 11 that is arranged on transmission 6 two ends, be fixed on the air seal case 1 by hold down gag around doorframe 5 outers of chamber door, also comprise the differential pressure indicator 7 that is arranged on air seal case 1 left side.Hold down gag in the present embodiment comprises a back-up block 8 that is arranged on the air seal case 1, and pressing plate 9 that is connected with back-up block 8, the front end riveting of pressing plate 9 is on the doorframe 5 of chamber door, and pressing plate 9 is fastenedly connected by screw 10 and air seal case.Be provided with rubber weather strip 12 between the doorframe 5 of chamber door and the air seal case 1.
During test doorframe 5 is pressed on the air seal case 1, by being filled with the gas of certain pressure in 2 pairs of air seal casees 1 of air intake opening, treat that the differential manometer registration stops when reaching 500Pa inflating, around doorframe 5, reach relevant airtight position and smear suds whether observation has leakage and keep a record.Differential manometer data of per 10 minutes records, pressurize 60 minutes, the meter registration value on the record differential pressure indicator 7.Compare this device with prior art and used cleverly bubble method and differential pressure method, bubble method can find leakage point, differential pressure method to be conducive to the more accurate slip that calculates more accurately.
Claims (3)
1. a mining door air-tightness detection device comprises the air seal case, and the air intake opening and the pressure relief device that are arranged on air seal case right side, also comprises the chamber door that is arranged on the air seal case; The chamber door comprises the chamber door main body, and the doorframe that is arranged on chamber door main body cylindrical, also comprise a drive link that runs through in chamber door main body and the partial insertion air seal case, and the handwheel that is arranged on the drive link two ends, it is characterized in that: be fixed on the air seal case by hold down gag around the doorframe outer of chamber door, also comprise the differential pressure indicator that is arranged on air seal case left side.
2. mining door air-tightness detection device according to claim 1, it is characterized in that: described hold down gag comprises a back-up block that is arranged on the air seal case, and pressing plate that is connected with back-up block, the front end riveting of pressing plate is on the doorframe of chamber door, and pressing plate is fastenedly connected by screw and air seal case.
3. mining door air-tightness detection device according to claim 1 and 2 is characterized in that: be provided with rubber weather strip between the doorframe of chamber door and the air seal case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539918 CN202814669U (en) | 2012-10-21 | 2012-10-21 | Air-tightness detecting device for mining door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539918 CN202814669U (en) | 2012-10-21 | 2012-10-21 | Air-tightness detecting device for mining door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814669U true CN202814669U (en) | 2013-03-20 |
Family
ID=47873528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539918 Expired - Fee Related CN202814669U (en) | 2012-10-21 | 2012-10-21 | Air-tightness detecting device for mining door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241616A (en) * | 2015-09-24 | 2016-01-13 | 安徽钟南人防工程防护设备有限公司 | Civil defense door airtightness detection apparatus with protection function |
| CN105277322A (en) * | 2015-09-24 | 2016-01-27 | 安徽钟南人防工程防护设备有限公司 | Civil air defence door airtightness detection device |
-
2012
- 2012-10-21 CN CN 201220539918 patent/CN202814669U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241616A (en) * | 2015-09-24 | 2016-01-13 | 安徽钟南人防工程防护设备有限公司 | Civil defense door airtightness detection apparatus with protection function |
| CN105277322A (en) * | 2015-09-24 | 2016-01-27 | 安徽钟南人防工程防护设备有限公司 | Civil air defence door airtightness detection 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: 20130320 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |