CN208766155U - A kind of fuel gas detection self-checking device of emission alarm - Google Patents
A kind of fuel gas detection self-checking device of emission alarm Download PDFInfo
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- CN208766155U CN208766155U CN201821141810.9U CN201821141810U CN208766155U CN 208766155 U CN208766155 U CN 208766155U CN 201821141810 U CN201821141810 U CN 201821141810U CN 208766155 U CN208766155 U CN 208766155U
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- fuel gas
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Abstract
The utility model discloses a kind of self-checking devices of fuel gas detection emission alarm, including gas source, workbench, workbench is equipped with left baffle, upper lower cross plate is equipped between left baffle, upper cross plate is equipped with intermediate throughholes, lower cross plate is equipped with the calibrated vessel across intermediate throughholes, intermediate throughholes are respectively arranged on the left side and the right side the positioning groove for placing transmitter and receiver, active clapboard is equipped in calibrated vessel, workbench is equipped with laser sensor, calibrated vessel left and right ends pass through escape pipe respectively and connect air extractor with air inlet pipe, gas source, air inlet pipe is equipped with flow control valve and shut-off valve, escape pipe is equipped with going out gas branch pipe and every section of pipeline is equipped with shut-off valve, device further includes controller, gas source, flow control valve, each shut-off valve, each laser sensor, air extractor is connected with controller.The utility model is able to pass through the controller calibration in an automated manner and penetrates alarm, easy to operate, guarantees calibration accuracy, improves calibration efficiency.
Description
Technical field
The utility model relates to a kind of self-checking devices of fuel gas detection emission alarm.
Background technique
Currently, flammable gas-detecting alarm device is in daily life with the fast development in petrochemical industry and natural gas field
Use in work starts constantly universal, wherein emission alarm is long because having the characteristics that big detection range, high sensitivity, service life
The fuel gas detection and alarm of various industrial sites have been widely used in it, working principle is mainly to transmitter and reception
Fuel gas within the scope of device carries out Concentration Testing, then issues alarm signal after being handled by processor, since emission alarm rises
Particularly important security monitoring effect, therefore be necessary to the calibration of its detection accuracy.
In the prior art, usually emission alarm is calibrated using calibrated vessel, setting connection can in calibrated vessel
It fires the air intake valve of gas bottle, connect the outlet valve and block level of oxygen analyser, using combustion gas bottle to school
Fuel gas is passed through in quasi- container, the gas in calibrated vessel drains into oxygen analyser and carries out oxygen concentration analysis, work as oxygen analysis
Instrument measures oxygen concentration and stablizes two valves of closing at 0.00%, and the calibrated vessel that inside is filled with fuel gas utilizes air-bubble
Quasi- instrument is placed in parallel on the optical circuit path of transmitter and receiver, and computer is manually entered after obtaining test value in cooperation processor
And emission alarm is calibrated by computer-internal program, it is had the disadvantage that when filling in this way, fuel gas and school
Gas in quasi- container is mixed, and is not only extended to fill the time but also influence fuel gas and is filled effect, and is tested
It is preceding that cooperation block level is also needed to guarantee the horizontal positioned of calibrated vessel, it is cumbersome, calibration efficiency is reduced, calibration accuracy is not
Such as people's will.
Summary of the invention
The technical issues of the utility model solves is to provide a kind of automatic calibration of fuel gas detection emission alarm
Device.
The technical solution of the utility model is: a kind of fuel gas detection self-checking device of emission alarm, packet
It includes for providing the gas source of fuel gas, further includes workbench and the left baffle and right baffle on the workbench, it is described
It is equipped with upper cross plate, the lower cross plate of upper and lower parallelly distribute between left baffle and right baffle, has been placed in parallel and has been used on the lower cross plate
It is passed through the calibrated vessel of fuel gas, the upper cross plate is equipped with the intermediate throughholes worn for the calibrated vessel, the upper cross
The positioning for being respectively arranged on the left side and the right side transmitter and receiver for placing emission alarm on plate positioned at intermediate throughholes is recessed
Slot, the interior active clapboard being equipped with for internal gas and fuel gas to be isolated of the calibrated vessel, described calibrated vessel or so two
Rectify the laser sensor that detection active clapboard position is respectively provided on the workbench of lower section, it is right on the lower cross plate
It should be respectively equipped with positioning through hole opposing upper and lower in each laser sensor, the left and right ends of the calibrated vessel are respectively equipped with outlet
Pipe and air inlet pipe, the air inlet pipe are connect and in the air inlet pipe from the gas source to the direction of calibrated vessel with the gas source
It is successively arranged flow control valve and the first shut-off valve, the escape pipe is connected with the pumping for extracting calibrated vessel internal gas
Direction on device and the escape pipe from the air extractor to calibrated vessel is successively arranged the second shut-off valve and third is cut
Only valve is additionally provided with the outlet branch being connected to outside atmosphere on the escape pipe between the second shut-off valve and third shut-off valve
Pipe, the going out gas branch pipe be equipped with control gas circulation the 4th shut-off valve, described device further include for receive to penetrate alarm
The controller of device detection data, the gas source, flow control valve, each shut-off valve, each laser sensor, air extractor with it is described
Controller is connected.
Further, the length of upper cross plate described in the utility model, lower cross plate is each along left and right directions extension.
Further, lower cross plate described in the utility model is equipped with the installation groove of recess formation downwards and by described
The fixed calibrated vessel of installation groove installation.
Further, active clapboard described in the utility model includes glass plate body, is sheathed on outside the glass plate body
With the sealing ring of leakproofness between increase and calibrated vessel.
Further, respectively corresponded in left baffle and right baffle described in the utility model be equipped with for the escape pipe, into
Left mounting hole that tracheae is worn, right mounting hole.
Further, air extractor described in the utility model is electronic air extracting pump.
Compared with the prior art, the utility model has the following advantages:
1) in the utility model, in order to guarantee that calibrated vessel can be placed in parallel in transmitter and the reception of emission alarm
On the optical circuit path of device, be specially designed to place respectively between the left baffle of workbench transmitter and receiver and
Upper cross plate, the lower cross plate of calibrated vessel, the upper and lower parallelly distribute on of two pieces of transverse slats and length are each along left and right directions extension, calibration appearance
Device can lie in a horizontal plane on lower cross plate and wear upper cross plate by intermediate throughholes, pass through intermediate throughholes of upper cross plate or so two
The positioning groove that side separately designs, transmitter and receiver ensure that optical circuit path can be put down while being placed in positioning groove
Row simplifies calibration steps without the position of additional designs block level adjustment calibrated vessel across calibrated vessel, saves
Prover time；In order to which guarantee fuel gas fills effect, particular design avoids fuel gas and calibration from holding in calibrated vessel
The active clapboard that device internal gas is mixed passes through controller, gas source, flow control valve, each shut-off valve, each laser sensor
And the cooperation of air extractor, guarantee to fill fuel gas completely inside calibrated vessel；This device be able to pass through the controller with
The mode of automation realizes the automatic calibration of emission alarm, and easy to operate, guarantees to be conducive to mention while calibration accuracy
High calibration efficiency.
2) in the utility model, active clapboard is designed as being arranged the form of sealing ring, glass plate body outside glass plate body
The light for being conducive to transmitter sending passes through preferably to be received by the receiver, and sealing ring then ensure that gas inside calibrated vessel
Isolation effect between body and the fuel gas being passed through, further increases calibration accuracy.
3) in the utility model, the flow control valve of particular design can guarantee fuel gas smoothly to flow in air inlet pipe
Speed is passed through calibrated vessel, thus prevent because moment flow it is excessive caused by contingency generation.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1, gas source；2, workbench；3, right baffle-plate；4, right shell body；5, upper cross plate；51, positioning groove；6, lower cross plate；
61, positioning through hole；7, calibrated vessel；71, air inlet pipe；72, escape pipe；73, going out gas branch pipe；8, active clapboard；9, laser sensing
Device；10, flow control valve；11, the first shut-off valve；12, air extractor；13, the second shut-off valve；14, third shut-off valve；15,
Four shut-off valves.
Specific embodiment
Embodiment:
A kind of self-checking device of fuel gas detection emission alarm of the utility model is shown in conjunction with attached drawing
Specific embodiment, firstly, including further including workbench 2 and being set to the workbench 2 for providing the gas source 1 of fuel gas
On right baffle-plate 3 and right shell body 4, between the right baffle-plate 3 and right shell body 4 be equipped with upper and lower parallelly distribute on upper cross plate 5, lower cross plate
6, and the length of the upper cross plate 5, lower cross plate 6 extends each along left and right directions.
The calibrated vessel 7 for being passed through fuel gas is placed in parallel on the lower cross plate 6, specifically, the lower cross plate 6
It is equipped with the installation groove that recess is formed downwards and by the fixed calibrated vessel 7 of installation groove installation.
The upper cross plate 5 is equipped with the intermediate throughholes worn for the calibrated vessel 7, and is located on the upper cross plate 5
The positioning groove 51 for being respectively arranged on the left side and the right side transmitter and receiver for placing emission alarm of intermediate throughholes.
The active clapboard 8 for internal gas and fuel gas to be isolated, the active clapboard are equipped in the calibrated vessel 7
8 include glass plate body, be sheathed on outside the glass plate body with increase and calibrated vessel 7 between leakproofness sealing ring, glass
The light that plate body is conducive to transmitter sending passes through preferably to be received by the receiver, and sealing ring then ensure that calibrated vessel 7
Isolation effect between internal gas and the fuel gas being passed through is conducive to improve calibration accuracy.
Detection active clapboard 8 is respectively provided on the workbench 2 immediately below 7 left and right ends of calibrated vessel
The laser sensor 9 set corresponds to each laser sensor 9 on the lower cross plate 6 and is respectively equipped with positioning through hole 61 opposing upper and lower.
In addition, the left and right ends of the calibrated vessel 7 are respectively equipped with escape pipe 72 and air inlet pipe 71,3 He of right baffle-plate
Left mounting hole, the right mounting hole for being equipped with and wearing for the escape pipe 72, air inlet pipe 71 are respectively corresponded in right shell body 4.
Specifically, the air inlet pipe 71 is connect and in the air inlet pipe 71 from the gas source 1 to calibration with the gas source 1
The direction of container 7 is successively arranged flow control valve 10 and the first shut-off valve 11, flow control valve 10 can guarantee fuel gas with
Stable flow velocity is passed through calibrated vessel 7, thus prevent because moment flow it is excessive caused by contingency generation；The outlet
Pipe 72 is connected with the air extractor 12 for extracting 7 internal gas of calibrated vessel, and the air extractor 12 is electronic air extracting pump, institute
It states and is successively arranged the second shut-off valve 13 and third shut-off valve from the direction of air extractor 12 to the calibrated vessel 7 on escape pipe 72
14, the outlet being connected to outside atmosphere is additionally provided between the second shut-off valve 13 and third shut-off valve 14 on the escape pipe 72
Branch pipe 73, the going out gas branch pipe 73 are equipped with the 4th shut-off valve 15 of control gas circulation.
Secondly, described device further includes the controller for receiving emission alarm detection data, the gas source 1, flow
Regulating valve 10, each shut-off valve, each laser sensor 9, air extractor 12 are connected with the controller.
When the present embodiment specific works, the transmitter of emission alarm and receiver are individually positioned in two positioning grooves
In 51, the initial position of active clapboard 8 is in the right end of calibrated vessel 7, and when detection, controller is opened to the sending of air extractor 12
Dynamic instruction, opens simultaneously the second shut-off valve 13 and third shut-off valve 14, effect of 7 internal gas of calibrated vessel in air extractor 12
Under along escape pipe 72 extract out, when the laser sensor 9 of right end on workbench 2 detects 8 setting in motion of active clapboard will inspection
Survey signal and be sent to controller, controller issues enabled instruction to gas source 1 and opens the first shut-off valve 11, meanwhile, controller to
Air extractor 12 issues halt instruction, closes the second shut-off valve 13, opens the 4th shut-off valve 15, since active clapboard 8 is designed as
The form of sealing ring is arranged outside glass plate body, therefore active clapboard 8 will not reversely to the right when air extractor 12 stops working
Thus movement can avoid that active clapboard 8 is caused vibration unstable phenomenon occur due to gas source 1 and air extractor 12 work at the same time,
It can also play the role of saving calibration cost simultaneously, flow control valve 10 controls gas source 1 according to the adjustment signal that controller issues
Smoothly output fuel gas, fuel gas are passed through calibrated vessel 7 along air inlet pipe 71, continue to press on active clapboard 8 and transport to the left
Dynamic, 7 internal gas of calibrated vessel is slowly discharged through escape pipe 72 and going out gas branch pipe 73, when the laser sensing of left end on workbench 2
Device 9 will test signal and be sent to controller when detecting active clapboard 8, controller issues halt instruction to gas source 1, simultaneously closes off
Flow control valve 10, the first shut-off valve 11, third shut-off valve 14 and the 4th shut-off valve 15,7 inside of calibrated vessel is complete at this time
Fuel gas is filled, the combustable gas concentration within the scope of transmitter and receiver that emission alarm will test is sent to control
Device, controller calculate and then complete the automatic calibration of emission alarm to the detection data received using internal processes.
On the one hand this device can guarantee that calibrated vessel 7 is placed in parallel in the transmitter and receiver of emission alarm
On optical circuit path, the position of calibrated vessel 7 is adjusted repeatedly without additional designs block level, simplify calibration steps, save
On the other hand prover time can guarantee the effect that fills of fuel gas, testing calibration by the active clapboard 8 of particular design
When, this device is able to pass through the controller the automatic calibration for realizing emission alarm in an automated manner, and it is easy to operate, guarantee
Be conducive to improve calibration efficiency while calibration accuracy.
Certainly the above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with this
The people of technology can understand the content of the utility model and implement accordingly, and the protection model of the utility model can not be limited with this
It encloses.Any modifications made in accordance with the spirit of the main technical solutions of the utility model should all cover the guarantor in the utility model
Within the scope of shield.
Claims (6)
1. a kind of fuel gas detection self-checking device of emission alarm, including for providing the gas source of fuel gas
(1), it is characterised in that: further include workbench (2) and the right baffle-plate (3) being set on the workbench (2) and right shell body (4), institute
State upper cross plate (5), the lower cross plate (6) that upper and lower parallelly distribute on is equipped between right baffle-plate (3) and right shell body (4), the lower cross plate (6)
On be placed in parallel calibrated vessel (7) for being passed through fuel gas, the upper cross plate (5), which is equipped with, supplies the calibrated vessel
(7) intermediate throughholes worn are located at being respectively arranged on the left side and the right side for placing to penetrating report for intermediate throughholes on the upper cross plate (5)
The transmitter of alert device and the positioning groove (51) of receiver, be equipped in the calibrated vessel (7) for be isolated internal gas with can
The active clapboard (8) of combustion gas body is respectively equipped with use on the workbench (2) immediately below calibrated vessel (7) left and right ends
Distinguish in corresponding to each laser sensor (9) on the laser sensor (9) for detecting active clapboard (8) position, the lower cross plate (6)
Equipped with positioning through hole opposing upper and lower (61), the left and right ends of the calibrated vessel (7) are respectively equipped with escape pipe (72) and air inlet
It manages (71), the air inlet pipe (71) connect and in the air inlet pipe (71) from the gas source (1) to calibration with the gas source (1)
The direction of container (7) is successively arranged flow control valve (10) and the first shut-off valve (11), and the escape pipe (72), which is connected with, to be used for
On the air extractor (12) and the escape pipe (72) of extraction calibrated vessel (7) internal gas extremely from the air extractor (12)
The direction of calibrated vessel (7) is successively arranged the second shut-off valve (13) and third shut-off valve (14), is located on the escape pipe (72)
The going out gas branch pipe (73) being connected to outside atmosphere, the outlet are additionally provided between second shut-off valve (13) and third shut-off valve (14)
Branch pipe (73) is equipped with the 4th shut-off valve (15) of control gas circulation, and described device further includes for receiving emission alarm inspection
The controller of measured data, the gas source (1), flow control valve (10), each shut-off valve, each laser sensor (9), air extractor
(12) it is connected with the controller.
2. a kind of fuel gas detection according to claim 1 self-checking device of emission alarm, feature exist
Extend in the length of: the upper cross plate (5), lower cross plate (6) each along left and right directions.
3. a kind of fuel gas detection according to claim 1 self-checking device of emission alarm, feature exist
In: the lower cross plate (6) is equipped with the installation groove that recess is formed downwards and by the fixed school of installation groove installation
Quasi- container (7).
4. a kind of fuel gas detection according to claim 1 self-checking device of emission alarm, feature exist
In: the active clapboard (8) includes glass plate body, is sheathed on outside the glass plate body to increase between calibrated vessel (7)
The sealing ring of leakproofness.
5. a kind of fuel gas detection according to claim 1 self-checking device of emission alarm, feature exist
In: the left side for being equipped with and wearing for the escape pipe (72), air inlet pipe (71) is respectively corresponded on the right baffle-plate (3) and right shell body (4)
Mounting hole, right mounting hole.
6. a kind of fuel gas detection according to claim 1 self-checking device of emission alarm, feature exist
In: the air extractor (12) is electronic air extracting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141810.9U CN208766155U (en) | 2018-07-18 | 2018-07-18 | A kind of fuel gas detection self-checking device of emission alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141810.9U CN208766155U (en) | 2018-07-18 | 2018-07-18 | A kind of fuel gas detection self-checking device of emission alarm |
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| Publication Number | Publication Date |
|---|---|
| CN208766155U true CN208766155U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821141810.9U Active CN208766155U (en) | 2018-07-18 | 2018-07-18 | A kind of fuel gas detection self-checking device of emission alarm |
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| Country | Link |
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| CN (1) | CN208766155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023050A (en) * | 2021-11-08 | 2022-02-08 | 广州广电计量检测股份有限公司 | Gas alarm calibration device and calibration method thereof |
| CN118506546A (en) * | 2024-06-11 | 2024-08-16 | 云南方圆计量校准检测服务有限公司 | Measuring and detecting device for disposable gas alarm |
-
2018
- 2018-07-18 CN CN201821141810.9U patent/CN208766155U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023050A (en) * | 2021-11-08 | 2022-02-08 | 广州广电计量检测股份有限公司 | Gas alarm calibration device and calibration method thereof |
| CN118506546A (en) * | 2024-06-11 | 2024-08-16 | 云南方圆计量校准检测服务有限公司 | Measuring and detecting device for disposable gas alarm |
| CN118506546B (en) * | 2024-06-11 | 2024-09-13 | 云南方圆计量校准检测服务有限公司 | Measuring and detecting device for disposable gas alarm |
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