CN202748303U - Calibration box of air exhausting device - Google Patents
Calibration box of air exhausting device Download PDFInfo
- Publication number
- CN202748303U CN202748303U CN 201220358388 CN201220358388U CN202748303U CN 202748303 U CN202748303 U CN 202748303U CN 201220358388 CN201220358388 CN 201220358388 CN 201220358388 U CN201220358388 U CN 201220358388U CN 202748303 U CN202748303 U CN 202748303U
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- CN
- China
- Prior art keywords
- calibration box
- top cover
- gas
- air
- exhausting device
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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 - Lifetime
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- Investigating Or Analysing Materials By Optical Means (AREA)
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Abstract
The utility model discloses a calibration box of an air exhausting device and belongs to a detecting device of air measurement equipment. The calibration box of the air exhausting device comprises a rectangular box body and a top cover, and is characterized in that a power cord hole, an air inlet and an air outlet are arranged on the side wall of the box body, and at least four probe inserting holes with rotatable sealing covers are arranged on the top cover. The calibration box of the air exhausting device has the advantages that multi-channel sealing is adopted by the calibration box, a probe is convenient to take, the cover of the calibration box is not required to be opened, and gas with set concentration is kept in the calibration box. The calibration box of the air exhausting device can not only prevent the gas from diffusing in air, but also reduce gas waste. Meanwhile, usage of standard gas and pure gas is reduced greatly so that efficiency is improved, cost is reduced, and accordingly the calibration box of the air exhausting device is suitable for requirements of occupational health and environmental protection.
Description
Technical field
The utility model belongs to the pick-up unit of gas measuring apparatus.
Background technology
Combustible gas probe is the gas examination checkout equipment of commonly using, in the place widespread use of using inflammable gas.Combustible gas probe needs to demarcate to guarantee to detect the accuracy of data after debugging.Existing scaling method is: method one, Application standard gas carries out calibration check one by one by the probe position of calibration mask alignment detector, the whole disperses of gas are in air like this, and namely having wasted a large amount of Standard Gases, not meet again worker's occupational health safety requirements and efficient low.It is uneconomical also not environmental protection.Method two is to use Calibration Box to carry out calibration check.1. detector integral body is put into case during calibration check, 2. energising preheating debugging detector after connecting with pick-up unit, 3. build case lid, 4. analyze by infrared spectrum analyser with pure gas and set concentration gases injection Calibration Box, 5. transfer the potentiometer on the detector that detector is carried out proving operation with straight screwdriver; Shortcoming is that operation is very inconvenient, and place detector seldom in one the case, efficient is extremely low, demarcates the complete case lid of must taking away detector is taken out from Calibration Box, the gas that FCL is set concentration all disperse still repeats above step when calibration check again in air.Not only waste gas but also be unfavorable for that worker's healthy and safe and work efficiency is extremely low.
The utility model content
The healthy and safe deficiency of not only having wasted gas but also being unfavorable for the worker in order to overcome the FCL gas-dispersion when picking and placeing detecting device of existing Calibration Box, the utility model provides a kind of exhaust apparatus Calibration Box, and this exhaust apparatus Calibration Box can reduce the outside disperse of gas in the Calibration Box.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of exhaust apparatus Calibration Box, comprise rectangular parallelepiped casing, top cover, it is characterized in that: wall box is provided with power lead hole and air inlet/outlet, and top cover is provided with at least 4 with the probe inlet of rotatable gland bonnet.
Between described casing top mouth and the top cover sealing gasket is housed, two ends are fixed wtih the fan Fixture that fan is housed in the casing.
Described probe inlet structure with rotatable gland bonnet is, have concentric circle holes on top cover bottom plate and the top cover top plate, be inlaid with the plain cushion rubber seal identical with its thickness in the circular hole of top plate, the gland bonnet bottom surface of cam-shaped is fixed wtih rubber gasket, and gland bonnet is fixed on the top cover by fixed screw.
The method of using the utility model to demarcate detecting device is: 1. sensors' positioning is connected rear energising preheating with pick-up unit on worktable and debug detector; 2. the gland bonnet on the Calibration Box top cover being threaded to open state inserts the detector probe position the Calibration Box from probe inlet; 3. analyze by infrared spectrum analyser with pure gas and set concentration gases injection exhaust apparatus Calibration Box; 4. open small fan in the Calibration Box, the gas that enters in the case is fully mixed; 5. gas reaches when setting concentration within analyser shows Calibration Box, regulates the detector potentiometer with straight screwdriver detector is carried out proving operation; 6. demarcate and complete detector on the Calibration Box is taken off, gland bonnet is rotated to sealing state;
The beneficial effects of the utility model are that and detector takes conveniently, need not open bid and decide case lid, remains the setting concentration gases in the case because Calibration Box adopts multiple-sealedly.Not only prevented gas-dispersion in air but also reduced the gas waste, and also greatly reduced the use of Standard Gases and pure gas, thereby raised the efficiency the reduction cost, and then also met occupational health and environmental requirement.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the vertical view of Fig. 1,
Fig. 3 is that cut-open view is looked on the left side of Fig. 1,
Fig. 4 is the partial enlarged drawing of probe inlet among Fig. 1.Among the figure, 1. gland bonnet, 2. rubber gasket, 3. plain cushion rubber seal, 4. top cover top plate, 5. sealing gasket, 6. fan Fixture, 7. the power lead hole is 8. advanced/venthole, 9. fixed screw, 10. fan, 11. casings, 12. top cover, 13. probe inlet, 14. gland bonnet open states, 15. top cover bottom plates.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Between described casing top mouth and the top cover sealing gasket 5 is housed, two ends are fixed wtih the fan Fixture 6 that fan 10 is housed in the casing.
Described probe inlet structure with rotatable gland bonnet is, have concentric circle holes on top cover bottom plate 15 and the top cover top plate 4, be inlaid with the plain cushion rubber seal 3 identical with its thickness in the circular hole of top plate, the gland bonnet bottom surface of cam-shaped is fixed wtih rubber gasket 2, and gland bonnet is fixed on the top cover by fixed screw 9.
The method of using the utility model to demarcate detecting device is: 1. sensors' positioning is connected rear energising preheating with pick-up unit on worktable and debug detector; 2. the gland bonnet on the Calibration Box top cover being threaded to gland bonnet open state 14 inserts the detector probe position the Calibration Box from probe inlet; 3. analyze by infrared spectrum analyser with pure gas and set concentration gases injection exhaust apparatus Calibration Box; 4. open small fan in the Calibration Box, the gas that enters in the case is fully mixed; 5. gas reaches when setting concentration within analyser shows Calibration Box, regulates the detector potentiometer with straight screwdriver detector is carried out proving operation; 6. demarcate and complete detector on the Calibration Box is taken off, gland bonnet is rotated to sealing state.
Claims (3)
1. an exhaust apparatus Calibration Box comprises rectangular parallelepiped casing, top cover, it is characterized in that: wall box is provided with power lead hole and air inlet/outlet, and top cover is provided with at least 4 with the probe inlet of rotatable gland bonnet.
2. exhaust apparatus Calibration Box according to claim 1 is characterized in that: between described casing top mouthful and the top cover sealing gasket is housed, two ends are fixed wtih the fan Fixture that fan is housed in the casing.
3. exhaust apparatus Calibration Box according to claim 1, it is characterized in that: described probe inlet structure with rotatable gland bonnet is, have concentric circle holes on top cover bottom plate and the top cover top plate, be inlaid with the plain cushion rubber seal identical with its thickness in the circular hole of top plate, the gland bonnet bottom surface of cam-shaped is fixed wtih rubber gasket, and gland bonnet is fixed on the top cover by fixed screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358388 CN202748303U (en) | 2012-07-23 | 2012-07-23 | Calibration box of air exhausting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358388 CN202748303U (en) | 2012-07-23 | 2012-07-23 | Calibration box of air exhausting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748303U true CN202748303U (en) | 2013-02-20 |
Family
ID=47707678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358388 Expired - Lifetime CN202748303U (en) | 2012-07-23 | 2012-07-23 | Calibration box of air exhausting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759548A (en) * | 2012-07-23 | 2012-10-31 | 济南市长清计算机应用公司 | Calibrating box of exhausting device |
| CN105424876A (en) * | 2015-11-04 | 2016-03-23 | 中国直升机设计研究所 | Calibrating device for fire extinguishing agent concentration measuring system |
-
2012
- 2012-07-23 CN CN 201220358388 patent/CN202748303U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759548A (en) * | 2012-07-23 | 2012-10-31 | 济南市长清计算机应用公司 | Calibrating box of exhausting device |
| CN105424876A (en) * | 2015-11-04 | 2016-03-23 | 中国直升机设计研究所 | Calibrating device for fire extinguishing agent concentration measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |