CN203706389U - Air fast switching device used for alarm calibration - Google Patents
Air fast switching device used for alarm calibration Download PDFInfo
- Publication number
- CN203706389U CN203706389U CN201320874068.3U CN201320874068U CN203706389U CN 203706389 U CN203706389 U CN 203706389U CN 201320874068 U CN201320874068 U CN 201320874068U CN 203706389 U CN203706389 U CN 203706389U
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- gas
- air
- valve
- alarm
- calibration
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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses an air fast switching device used for alarm calibration; an air inlet of a switching valve is respectively connected with first air valve and second air valve air outlets through pipes; a first air valve air inlet and a second air valve air inlet are respectively and correspondingly connected with a first standard gas cylinder and a second standard gas cylinder through pipes; an air outlet of the switching valve is connected with the gas alarm through a standard flowmeter by a pipe; the air fast switching device used for alarm calibration is fast in operation, good in safety, high in efficiency, time for calibrating the gas alarm can be greatly reduced, and safety in work can be improved.
Description
Technical field
The utility model relates to instrument calibration device, for the calibration of gas alarm instrument, and particularly a kind of gas apparatus for fast switching for alarm calibration.
Background technology
Existing gas alarm instrument calibrating installation is by air valve, supporting nut, flexible pipe, gas flow control desk and supporting air-suction cover composition.First calibrating gas bottle connects air valve, and the nut on flexible pipe is tightened to air valve connector, and then is connected to gas flow control desk by flexible pipe and nut, carries out gas flow control in gas flow control desk gas outlet.According to existing calibrating standard, in the time carrying out the calibration of gas alarm instrument, need to carry out the test of two kinds of calibrating gas, so just need to switch two kinds of calibrating gas at gas flow control desk and carry out orientation ratio pair, when comparison, must close air valve, connect a kind of calibrating gas bottle wherein with flexible pipe, after test, with spanner, nut be turned on, then flexible pipe is connected to another kind of calibrating gas bottle, tests.After connecting at every turn, must sprinkle and sentence examination at connector and have or not gas leakage with suds, need again turn on spanner if any gas leakage, after processing, connection tries suds again.After connecting, confirmation carries out calibrating gas flow control calibration gas alarm by gas flow control desk again.In calibrating gas blocked operation process, easily gas leakage, adjusts consuming time very longly, and particularly CO gas alarm, also relates to safe operation problem.This has just caused calibrating installation inefficiency, poor safety performance, and method of operating is the series of problems such as science not.
Along with the security requirement that enterprise is used gas is more and more paid attention to, the calibration tasks of gas alarm instrument is more and more heavier, is badly in need of a kind of efficiency high, and the device of high safety meets calibration operation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of without dismounting and a kind of gas apparatus for fast switching for alarm calibration of switching standards gas, the work efficiency of raising calibration and alarm calibration security safely and fast.
The technical solution of the utility model is: a kind of gas apparatus for fast switching for alarm calibration, comprise transfer valve, the air intake opening of described transfer valve is connected with the first air valve and the second air valve gas outlet respectively by pipeline, the first air valve is connected with the first calibrating gas bottle and the second calibrating gas bottle with pipeline is corresponding respectively with the second air valve air intake opening, and the gas outlet of transfer valve is crossed proving flowmeter with device for cleaning pipeline and is connected with gas alarm instrument.
The beneficial effects of the utility model are: the use of gas apparatus for fast switching, and swift to operate, security is good, and efficiency is high, has greatly reduced the time of calibration gas alarm, the security while having improved work.
Brief description of the drawings
Fig. 1 is the utility model structure principle chart.
In figure: 1. device body, 11. first air valves, 12. second air valves, 13. transfer valves, 14. proving flowmeters, 2. the first calibrating gas bottle, 3. the second calibrating gas bottle, 4. gas alarm instrument.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.Referring to Fig. 1, a kind of gas apparatus for fast switching for alarm calibration, comprise transfer valve 13, the air intake opening of described transfer valve 13 is connected with the first air valve 11 and the second air valve 12 gas outlets respectively by pipeline, the first air valve 11 is connected with the first calibrating gas bottle 2 and the second calibrating gas bottle 3 with pipeline is corresponding respectively with the second air valve 12 air intake openings, and the gas outlet of transfer valve 13 is crossed proving flowmeter 14 with device for cleaning pipeline and is connected with gas alarm instrument 4.
embodiment:for a gas apparatus for fast switching for alarm calibration, switch fast for gas safety, improve gas alarm instrument calibration operation efficiency and security.As shown in Figure 1, gas apparatus for fast switching of the present utility model is first that the first air valve 11, the second air valves 12 and transfer valve 13 is interior fixing at device body 1, then connects by supporting pipeline, two of pipeline is provided with coupling nut, is provided with O-ring seal in nut; Connected respectively two air intake openings of transfer valve 13 by pipeline by the gas outlet of the first air valve 11, the second air valve 12, then proving flowmeter 14 is fixed on device body 1, proving flowmeter 14 air intake openings are connected to transfer valve 13 gas outlets by pipeline, and the gas outlet of proving flowmeter 14 is connected to gas alarm instrument 4 with pipeline; The first calibrating gas bottle 2 is connected with the first air valve 11 and the second air valve 12 air intake openings with the second calibrating gas bottle 3 use pipelines are corresponding respectively.The pipeline that connects use adopts hard steel pipe or flexible pipe.
In the time carrying out the calibration of gas alarm instrument, according to gas alarm instrument range, select two bottles of calibrating gas of two kinds of variable concentrations, after connecting with pipeline, open the first air valve 11 and the second air valve 12, by rotating transfer valve 13, gas port is rotated to the first air valve 11 or the second air valve 12, realize calibrating gas easily, fast switch.Thereby make the calibrating gas in the first calibrating gas bottle 2 or the second calibrating gas bottle 3 distinguish Engage of standard flowmeter 14 by pipeline, control gas flow by adjustment criteria flowmeter 14 and carry out the calibration of gas alarm instrument 4.The prior installation check of apparatus for fast switching of the present utility model is good, does not need to repeat to install, and has directly omitted middle many unnecessary processes, the particularly calibration of CO gas alarm, has reduced the link of Leakage Gas, has greatly improved security.Reach safety, quick, reliable, the object that efficiency is high.
Claims (1)
1. the gas apparatus for fast switching for alarm calibration, comprise transfer valve, it is characterized in that, the air intake opening of described transfer valve is connected with the first air valve and the second air valve gas outlet respectively by pipeline, the first air valve is connected with the first calibrating gas bottle and the second calibrating gas bottle with pipeline is corresponding respectively with the second air valve air intake opening, and the gas outlet of transfer valve is crossed proving flowmeter with device for cleaning pipeline and is connected with gas alarm instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874068.3U CN203706389U (en) | 2013-12-27 | 2013-12-27 | Air fast switching device used for alarm calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320874068.3U CN203706389U (en) | 2013-12-27 | 2013-12-27 | Air fast switching device used for alarm calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706389U true CN203706389U (en) | 2014-07-09 |
Family
ID=51056794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320874068.3U Expired - Fee Related CN203706389U (en) | 2013-12-27 | 2013-12-27 | Air fast switching device used for alarm calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700234A (en) * | 2013-12-27 | 2014-04-02 | 新余钢铁集团有限公司 | Rapid gas switching device for use in calibration of alarm apparatus |
-
2013
- 2013-12-27 CN CN201320874068.3U patent/CN203706389U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700234A (en) * | 2013-12-27 | 2014-04-02 | 新余钢铁集团有限公司 | Rapid gas switching device for use in calibration of alarm apparatus |
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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: 20140709 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |