CN109712372A - A kind of gas alarm instrument calibration system - Google Patents
A kind of gas alarm instrument calibration system Download PDFInfo
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- CN109712372A CN109712372A CN201910074521.4A CN201910074521A CN109712372A CN 109712372 A CN109712372 A CN 109712372A CN 201910074521 A CN201910074521 A CN 201910074521A CN 109712372 A CN109712372 A CN 109712372A
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Abstract
The invention discloses a kind of gas alarm instrument calibration system, including cabinet body, cabinet body includes gas cabinet, operation cabinet and exhaust gas cabinet, and gas mixing panel is provided in operation cabinet；Getter device, several third switch valves and several air-washers are provided in exhaust gas cabinet, the outlet of getter device is separately connected several third switch valves, connects exhaust outlet after third switch valve connection air-washer, at least one third switch valve is directly connected to exhaust outlet；The detection gas outlet of gas mixing panel connects the air inlet of getter device by hose, is provided with calibration cover on hose.Tail gas is directly drained into exhaust gas cabinet by this kind of gas alarm instrument calibration system by hose, reduce leakage, various detection gas are provided with different air-washers in exhaust gas cabinet, by opening different second switch valves, so that different detection gas enter corresponding air-washer in discharge and carry out tail gas absorption or directly discharged.
Description
Technical field
The invention belongs to gas alarm instrument detection device technology field, specifically a kind of gas alarm instrument calibration system.
Background technique
Gas alarm instrument is mounted to the gas detection equipment of family or factory, many kinds of, the example of gas alarm instrument
Such as hydrogen alarm, carbonic oxide alarm, ammonia alarm, natural gas alarm.And gas alarm instrument makes in long-term
With may fail in the process, it is therefore desirable to regularly be detected to gas alarm instrument, to guarantee that it can effectively alarm.Therefore
For detecting all kinds of gas alarm instruments, effectively whether detection company comes into being.Existing detection method is usually in gas report
Connection calibration cover, is then passed through calibrating gas and is detected, again if calibrating gas is in the gas of setting on the detector of alert instrument
It more than concentration alarms, then proves that gas alarm instrument is effective, if calibrating gas occurs below report in the gas concentration of setting
Alert or calibrating gas is not alarmed more than the gas concentration of setting, then proves that gas alarm instrument fails, need repairing.
Existing gas alarm instrument calibrating installation generally comprises several calibrating gas bottles, and calibrating gas bottle connects school by pipeline
Quasi- cover, calibration cover are connect with the detector of gas alarm instrument, connect to detect with several calibrating gas bottles respectively by pipeline
Whether gas alarm instrument fails out.The detection gas in calibration cover are typically all to be expelled directly out when detecting, it is possible to be polluted
Environment and personal safety is impacted.
Summary of the invention
The present invention in view of the shortcomings of the prior art, providing a kind of gas alarm instrument calibration system, calibrate by this kind of gas alarm instrument
Tail gas is directly drained into exhaust gas cabinet by system by hose, reduces leakage, and can carry out at tail gas to detection gas
Reason reduces the pollution to environment and hazard to person.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of gas alarm instrument school
Barebone, including cabinet body, the cabinet body include gas cabinet, operation cabinet and exhaust gas cabinet, and it is mixed that gas is provided in the operation cabinet
Close panel；Getter device, several third switch valves and several air-washers, the getter device are provided in the exhaust gas cabinet
Outlet be separately connected several third switch valves, the third switch valve connects exhaust outlet after connecting the air-washer,
At least one described third switch valve is directly connected to exhaust outlet；The detection gas outlet of the gas mixing panel is connected by hose
The air inlet of the getter device is connect, calibration cover is provided on the hose.This kind of gas alarm instrument calibration system passes through hose
Directly tail gas is drained into exhaust gas cabinet, reduces leakage, various detection gas are provided with different wash in exhaust gas cabinet
Device of air, by opening different second switch valves, so that different detection gas enter corresponding air-washer in discharge
It carries out tail gas absorption or is directly discharged, so that exhaust emissions is more environmentally-friendly and safe.
In above-mentioned technical proposal, it is preferred that be provided with several detection gas connectors and nitrogen on the gas mixing panel
Gas connector, convergence is connected with first flow after the detection gas connector is separately connected the first pressure reducing valve and first switch valve
Regulating valve, the nitrogen connector are connected with the second pressure reducing valve, second switch valve and second flow regulating valve in turn, and described first
Flow control valve and the second flow regulating valve with detection gas outlet；If being provided with dry gas in the gas cabinet
Bottle, several gas cylinders connect one to one with several detection gas connectors and the nitrogen connector.By each
The gas of first switch valve controlled to use wherein certain test, the realization by first flow valve and second flow valve are each
The configuration of a concentration standard gas to reduce calibrating gas bottle quantity, and pressure reducing valve is integrated into gas mixing panel, is made
It obtains single air cylinder not needing to be reconfigured pressure reducing valve, reduces the quantity of pressure reducing valve, save cost.
In above-mentioned technical proposal, it is preferred that the operation cabinet side is provided with opening, and the opening two sides are provided with cunning
Rail is provided with sliding window on the sliding rail.Sliding window can be closed using the structure when being detected, so that some nocuousness gas
Body will not cause harm to the human body when detecting.
In above-mentioned technical proposal, it is preferred that the gas cylinder includes detection gas cylinder and nitrogen cylinder, the detection gas cylinder difference
It is connect with the detection gas connector, the nitrogen cylinder is connect with the nitrogen connector.
In above-mentioned technical proposal, it is preferred that be provided between the first flow regulating valve and detection gas outlet
First check valve is provided with second one-way valve between the second flow regulating valve and detection gas outlet.Using the knot
Structure can prevent the gas in detection gas cylinder and nitrogen cylinder from mutually circulating, and guarantee the purity of gas in gas cylinder.
In above-mentioned technical proposal, it is preferred that be provided with several openable accommodating chambers, the accommodating chamber on the exhaust gas cabinet
It is inside provided with and is respectively arranged with the air-washer.Using the structure air-washer is easily replaced.
In above-mentioned technical proposal, it is preferred that the air-washer is equipped with the reagent bottle for absorption detecting gaseous reagent.
It is simple as air-washer structure using reagent bottle, it is low in cost and be convenient for changing.
In above-mentioned technical proposal, it is preferred that be provided with calibration cover positioning device, the calibration cover positioning in the operation cabinet
Device includes pedestal, guide rod and tension spring, and the guide rod is fixed on the base vertically, and setting is slided on the guide rod
There is the calibration to cover, tension spring is provided between the calibration cover and the pedestal, calibration cover two sides are connected to the hose, institute
The bottom for stating calibration cover is provided with detection mouth.Using the structure gas alarm instrument is easily positioned with calibration cover, from
And facilitate detection, and calibrate the detection gas in cover and be directly transferred into exhaust gas cabinet after mouth after testing, to reduce
The leakage of detection gas.
In above-mentioned technical proposal, it is preferred that be provided with gas alarm instrument locating slot on the pedestal.Made using the structure
Gas alarm instrument positioning is more accurate.
In above-mentioned technical proposal, it is preferred that the first switch valve, the first flow regulating valve, second decompression
Valve, the second switch valve, the second flow regulating valve and the third switch valve are solenoid valve and connect with control device
It connects.Using the structure various valves are remotely controlled by control device, reduces contact gas and do harm to huamn body
Possibility, but also control get up it is more convenient.
Compared with prior art, the present invention having the following beneficial effects: that this kind of gas alarm instrument calibration system passes through hose
Directly tail gas is drained into exhaust gas cabinet, reduces leakage, various detection gas are provided with different wash in exhaust gas cabinet
Device of air, by opening different second switch valves, so that different detection gas enter corresponding air-washer in discharge
It carries out tail gas absorption or is directly discharged, so that exhaust emissions is more environmentally-friendly and safe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of alignment of embodiment of the present invention cover positioning device.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing: a kind of referring to Fig. 1 to Fig. 2
Gas alarm instrument calibration system, including cabinet body 1, the cabinet body 1 include gas cabinet 2, operation cabinet 3 and exhaust gas cabinet 4, the operation
It is provided with gas mixing panel 5 in cabinet 3, several detection gas connectors 6 are provided on the gas mixing panel 5 and nitrogen connects
Interface 7, convergence is connected with first flow after the detection gas connector 6 is separately connected the first pressure reducing valve 8 and first switch valve 9
Regulating valve 10, the nitrogen connector 7 are connected with the second pressure reducing valve 11, second switch valve 12 and second flow regulating valve in turn
13, the first flow regulating valve 10 and the second flow regulating valve 13 are connected to detection gas outlet 14；The gas cylinder
Several gas cylinders 15, several gas cylinders 15 and several detection gas connectors 6 and the nitrogen connector are provided in cabinet 2
7 connect one to one；Getter device 16, several third switch valves 17 and several air-washers are provided in the exhaust gas cabinet 4
18, the outlet of the getter device 16 is separately connected several third switch valves 17, and the third switch valve 17 connects described
Exhaust outlet 19 is connected after air-washer 18, at least one described third switch valve 17 is directly connected to exhaust outlet 19；The detection gas
Body outlet 14 connects the air inlet of the getter device 16 by hose 20, and calibration cover 21 is provided on the hose 20.This kind
Gas alarm instrument calibration system can use the gas of wherein certain test by the control of each first switch valve, pass through
The configuration of each concentration standard gas of the realization of first flow valve and second flow valve, so that calibrating gas bottle quantity is reduced, and
Pressure reducing valve is integrated into gas mixing panel, so that single air cylinder does not need to be reconfigured pressure reducing valve, reduces the quantity of pressure reducing valve,
Cost is saved, directly tail gas is drained into exhaust gas cabinet by hose, reduces leakage, while being directed to various inspections in exhaust gas cabinet
It surveys gas and is provided with different air-washers, by the cooperation of first switch valve and second switch valve, so that different detection gas
Body, which enters corresponding air-washer in discharge, to carry out tail gas absorption or is directly discharged, so that exhaust emissions is more
Environmental protection and safety.
3 side of operation cabinet is equipped with opening 31, and 31 two sides of the opening are provided with sliding rail 32, are arranged on the sliding rail 32
There is sliding window 33.Sliding window can be closed using the structure when being detected, so that some pernicious gases when detecting will not
It causes harm to the human body.
In the present embodiment, the gas cylinder 15 includes that detection gas cylinder 151 and nitrogen cylinder 152, the detection gas cylinder 151 divide
It is not connect with the detection gas connector 6, the nitrogen cylinder 152 is connect with the nitrogen connector 7.
The first check valve 22 is provided between the first flow regulating valve 10 and detection gas outlet 14, described the
Second one-way valve 23 is provided between two flow control valves 13 and detection gas outlet 14.It can prevent from examining using the structure
The gas surveyed in gas cylinder and nitrogen cylinder mutually circulates, and guarantees the purity of gas in gas cylinder.
It is provided with several openable accommodating chambers 41 on the exhaust gas cabinet 4, is provided with and is respectively set in the accommodating chamber 41
There is the air-washer 18.Using the structure air-washer is easily replaced.
The air-washer 18 is equipped with the reagent bottle for absorption detecting gaseous reagent.It is filled using reagent bottle as gas washing
It is simple to set structure, it is low in cost and be convenient for changing.
Be provided in the operation cabinet 3 calibration cover positioning device 24, the calibration cover positioning device 24 including pedestal 241,
Guide rod 242 and tension spring 243, the guide rod 242 are fixed on vertically on the pedestal 241, are slided and are set on the guide rod 242
It is equipped with the calibration cover 21, is provided with tension spring 243 between the calibration cover 21 and the pedestal 241,21 two sides are covered in the calibration
It is connected to the hose 20, the bottom of the calibration cover 21 is provided with detection mouth 211.Gas alarm instrument is enabled using the structure
Easily with calibration cover positioning, to facilitate detection, and calibrates the detection gas in cover and directly passed after mouth after testing
It is input into exhaust gas cabinet, to reduce the leakage of detection gas.
Gas alarm instrument locating slot 244 is provided on the pedestal 241.Gas alarm instrument positioning is made more using the structure
It is accurate to add.
The first switch valve 9, the first flow regulating valve 10, second pressure reducing valve 11, the second switch valve
12, the second flow regulating valve 13 and the third switch valve 17 are solenoid valve and connect with control device.Using the knot
Structure enables various valves remotely to control by control device, reduces the possibility that contact gas is done harm to huamn body, also makes
It must control more convenient.
Gas alarm instrument calibration system described in the present embodiment when in use, first positions gas alarm instrument, by gas
The detector of alarm is docked with the detection mouth of calibration cover, is then shut off sliding window, is passed through according to gas type and gas concentration
Control system sets the flow of first flow valve and second flow valve, is then turned on corresponding first switch valve, second switch valve
With third switch valve, wherein the corresponding air-washer of third switch valve opened is the gas for absorbing the secondary detection, or
The nontoxic non-environmental-pollution of the detection gas of this time of person, then third switch valve is directly connected to exhaust outlet；Opening a period of time
Afterwards, the percentage of detection gas tends towards stability, and is gradually turned up or turns down gas concentration sees whether gas alarm instrument is correct later
Alarm, then can accurately judge whether gas alarm instrument works normally.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of gas alarm instrument calibration system, it is characterised in that: including cabinet body (1), the cabinet body (1) include gas cabinet (2),
Operation cabinet (3) and exhaust gas cabinet (4), the operation cabinet (3) is interior to be provided with gas mixing panel (5)；It is set in the exhaust gas cabinet (4)
It is equipped with getter device (16), several third switch valves (17) and several air-washers (18), the getter device (16) goes out
Mouth is separately connected several third switch valves (17), and the third switch valve (17) connects the air-washer (18) and connects afterwards
Exhaust outlet (19), at least one described third switch valve (17) are directly connected to exhaust outlet (19)；The gas mixing panel (5)
Detection gas export the air inlet that (14) connect the getter device (16) by hose (20), are provided on the hose (20)
Calibration cover (21).
2. a kind of gas alarm instrument calibration system as described in claim 1, it is characterised in that: the gas mixing panel (5)
On be provided with several detection gas connectors (6) and nitrogen connector (7), the detection gas connector (6) is separately connected
One pressure reducing valve (8) and first switch valve (9) converge afterwards to be connected with first flow regulating valve (10), the nitrogen connector (7) according to
It is secondary to be connected with the second pressure reducing valve (11), second switch valve (12) and second flow regulating valve (13), the first flow regulating valve
(10) it is connected to detection gas outlet (14) with the second flow regulating valve (13)；The gas cabinet (2) is if interior be provided with
Dry gas bottle (15), several gas cylinders (15) and several detection gas connectors (6) and the nitrogen connector (7) are one by one
It is correspondingly connected with.
3. a kind of gas alarm instrument calibration system as described in claim 1, it is characterised in that: operation cabinet (3) side is set
Have opening (31), described opening (31) two sides are provided with sliding rail (32), are provided with sliding window (33) on the sliding rail (32).
4. a kind of gas alarm instrument calibration system as claimed in claim 2, it is characterised in that: the gas cylinder (15) includes detection
Gas cylinder (151) and nitrogen cylinder (152), the detection gas cylinder (151) connect with the detection gas connector (6) respectively, institute
Nitrogen cylinder (152) is stated to connect with the nitrogen connector (7).
5. a kind of gas alarm instrument calibration system as claimed in claim 2, it is characterised in that: the first flow regulating valve
(10) it is provided with the first check valve (22) between detection gas outlet (14), the second flow regulating valve (13) and institute
It states and is provided with second one-way valve (23) between detection gas outlet (14).
6. a kind of gas alarm instrument calibration system as described in claim 1, it is characterised in that: be arranged on the exhaust gas cabinet (4)
There are several openable accommodating chambers (41), is provided in the accommodating chamber (41) and is respectively arranged with the air-washer (18).
7. a kind of gas alarm instrument calibration system as described in claim 1 or 6, it is characterised in that: the air-washer (18)
For equipped with the reagent bottle for absorption detecting gaseous reagent.
8. a kind of gas alarm instrument calibration system as described in claim 1, it is characterised in that: be arranged on the operation cabinet (3)
There is calibration cover positioning device (24), the calibration cover positioning device (24) includes pedestal (241), guide rod (242) and tension spring
(243), the guide rod (242) is fixed on vertically on the pedestal (241), and sliding is arranged on the guide rod (242)
Calibration cover (21) is stated, is provided with tension spring (243) between the calibration cover (21) and the pedestal (241), (21) are covered in the calibration
Two sides are connected to the hose (20), and the bottom of the calibration cover (21) is provided with detection mouth (211).
9. a kind of gas alarm instrument calibration system as claimed in claim 8, it is characterised in that: be arranged on the pedestal (241)
There are gas alarm instrument locating slot (244).
10. a kind of gas alarm instrument calibration system as claimed in claim 2, it is characterised in that: the first switch valve (9),
The first flow regulating valve (10), second pressure reducing valve (11), the second switch valve (12), the second flow are adjusted
Valve (13) and the third switch valve (17) are solenoid valve and connect with control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074521.4A CN109712372B (en) | 2019-01-25 | 2019-01-25 | Gas alarm instrument calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074521.4A CN109712372B (en) | 2019-01-25 | 2019-01-25 | Gas alarm instrument calibration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109712372A true CN109712372A (en) | 2019-05-03 |
| CN109712372B CN109712372B (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910074521.4A Active CN109712372B (en) | 2019-01-25 | 2019-01-25 | Gas alarm instrument calibration system |
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| CN (1) | CN109712372B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110780041A (en) * | 2019-11-12 | 2020-02-11 | 中国原子能科学研究院 | Online calibration system and method for hydrogen isotope mixed gas concentration detection alarm instrument |
| CN114999133A (en) * | 2022-06-06 | 2022-09-02 | 浙江聚森检测科技有限公司 | Calibration equipment capable of automatically adjusting positioning position of gas alarm |
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| CN109712372B (en) | 2023-10-13 |
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