CN203786104U - Automatic calibrating device for catalytic combustion type methane sensor - Google Patents
Automatic calibrating device for catalytic combustion type methane sensor Download PDFInfo
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- CN203786104U CN203786104U CN201420131589.4U CN201420131589U CN203786104U CN 203786104 U CN203786104 U CN 203786104U CN 201420131589 U CN201420131589 U CN 201420131589U CN 203786104 U CN203786104 U CN 203786104U
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- solenoid valve
- valve group
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Abstract
The utility model discloses an automatic calibrating device for a catalytic combustion type methane sensor. The automatic calibrating device comprises a solenoid valve group channel, a unidirectional control valve group, a shunting device and a flow rate controller group which are connected in sequence, wherein the flow rate controller group is respectively connected with the sensor detecting channel solenoid valve group and the portable apparatus detecting channel solenoid valve group; the sensor detecting channel solenoid valve group is respectively connected with a sensor detecting channel interface and a sensor channel back-to-zero control solenoid valve group; the portable apparatus detecting channel solenoid valve group is respectively connected with the portable apparatus detecting channel interface and the portable apparatus channel back-to-zero control solenoid valve group; the sensor channel back-to-zero control solenoid valve group and the portable apparatus back-to-zero control solenoid valve group are both connected with a back-to-zero gas exhaust device. The automatic calibrating device disclosed by the utility model realizes an automatic back-to-zero function, the product is safe and reliable to apply and long in service life, gas consumption is saved, real-time synchronous detection of response time is realized, detecting errors are reduced, and potential safety hazard possibly caused by solenoid valve overheat is eliminated.
Description
Technical field
The utility model relates to the calibrating installation of methane gas sensor, refers to especially a kind of catalytic combustion type methane transducer automatic calibrator.
Background technology
The calibrating of methane transducer and adjustment are carried out the calibrating of the error of indication, response time, load characteristic, warning error according to < < JJG678-2007 > > catalytic combustion type methane analyzer vertification regulation.There is following shortcoming in the calibration equipment that existing market is used:
1, equipment does not have back to zero system;
When 2, existing equipment needs back to zero, be pipeline internal standard gas all need be replaced to discharge, thereby cause the waste of calibrating gas;
3, the calibrating of response time requires the temporal resolution of 0.1s, and the collection of available data adopts the mode of electronic switch scanning or 485 communications to carry out, thereby picking rate is difficult to response time, load characteristic to be examined and determine slowly;
4,8 channel capacities of 1 pair of 8 part flow arrangement of calibrating gas regulate and interact, and make flow regulation difficulty, poor stability;
5, solenoid valve direct-electrifying, long-time use easily makes solenoid valve heating, causes potential safety hazard.
Utility model content
The utility model proposes a kind of catalytic combustion type methane transducer automatic calibrator, having solved catalytic combustion type methane transducer of the prior art can not automatic zero set (AZS) and the low problem of verification accuracy.
The technical solution of the utility model is achieved in that
Catalytic combustion type methane transducer automatic calibrator, comprise: the solenoid valve group passage connecting successively, one-way control valve group, part flow arrangement and flow controller group, flow controller group is connected with portable instrument sense channel solenoid valve group with sensor sense channel solenoid valve group respectively, sensor sense channel solenoid valve group is controlled solenoid valve group with sensor sense channel interface and sensor passage back to zero respectively and is connected, portable instrument sense channel solenoid valve group is controlled solenoid valve group with portable instrument sense channel interface and portable instrument passage back to zero respectively and is connected, sensor passage back to zero is controlled solenoid valve group and is all connected with back to zero exhaust apparatus with portable instrument passage back to zero control solenoid valve group.
Preferably, part flow arrangement is 1 pair of 8 part flow arrangement.
Preferably, flow controller group is provided with 8 passages.
Preferably, part flow arrangement is connected with gas exhausting valve.
Preferably, solenoid valve group passage is connected with solenoid valve electricity-saving control device, and solenoid valve electricity-saving control device comprises K switch, energy-saving controller and the relay connecting successively.
The beneficial effects of the utility model are:
1, realize auto Zero Function, thereby provide technique guarantee for realizing automatic detection;
2, product application safety is reliable, long service life;
3, verification speed is fast, verification accuracy is high, has saved and has detected the gas consumption with 1/2nd;
4, the real-time synchronization of having realized the response time detects, and has reduced detection error;
5, solenoid valve does not generate heat, and has eliminated the potential safety hazard that may cause due to overheat of solenoid valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the theory diagram of solenoid valve electricity-saving control device in the utility model.
In figure:
1, solenoid valve group passage; 2, one-way control valve group; 3,1 pair of 8 part flow arrangement; 4, flow controller group; 5, sensor sense channel solenoid valve group; 6, portable instrument sense channel solenoid valve group; 7, sensor sense channel interface; 8, portable instrument sense channel interface; 9, sensor passage back to zero is controlled solenoid valve group; 10, back to zero exhaust apparatus; 11, portable instrument passage back to zero is controlled solenoid valve group; 12, gas exhausting valve; 13, solenoid valve electricity-saving control device; 14, energy-saving controller; 15, relay.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, Standard Gas of Methane enters by solenoid valve group passage 1, solenoid valve group passage 1 is controlled by solenoid valve electricity-saving control device 13, optionally enter one-way control valve group 2, one-way control valve group 2 can only have a kind of calibrating gas to enter for guaranteeing, after this through 1 pair of 8 part flow arrangement 3, shunts, and is about to a kind of calibrating gas and splits into 8 tunnels, realize the function of calibrating simultaneously, 1 pair of 8 part flow arrangement 3 is connected with gas exhausting valve 12, after shunting, by flow controller group 4, carry out flow control, preferred, flow controller group 4 is provided with 1-8 passage, and the gas flow that each is measured to passage is controlled, calibrating gas passes into respectively sensor sense channel solenoid valve group 5 and portable instrument sense channel solenoid valve group 6 and enters sense channel interface separately after each passage, it is sensor sense channel interface 7 and portable instrument sense channel interface 8, sensor sense channel interface 7 is connected with tested sensor, portable instrument sense channel interface 8 is connected with portable instrument, back to zero exhaust apparatus 10, making sensor passage back to zero control solenoid valve group 9 and portable instrument detect back to zero control solenoid valve group 11 opens, while closure sensor sense channel solenoid valve group 5 and portable instrument sense channel solenoid valve group 6, make tested instrument back to zero.
At sensor sense channel interface 7 places, be connected to sensor passage back to zero and control solenoid valve group 9, when needs back to zero, sensor sense channel solenoid valve group 5 is closed, open sensor passage back to zero and control solenoid valve group 9 and by back to zero exhaust apparatus 10, tested standard of instruments gas input port residual gas is discharged and made by test examination instrument back to zero, closure sensor sense channel controls that solenoid valve group 5 realizes the auto Zero Function of this equipment and the Standard Gases device that makes to measure in passage can all not discharged simultaneously.During due to back to zero, sense channel is closed, just very little a part of gas in pipelines in sense channel is discharged, thereby can save calibrating gas, one-way control valve be a kind of can pilot piping in fluid break-make retaining valve used, flow controller is autocontrol flowrate control valve, and the device in the utility model is prior art.
As shown in Figure 2, solenoid valve electricity-saving control device 13 comprises K switch, energy-saving controller 14 and the relay 15 connecting successively, energy-saving controller 14 is XP-B type series energy-saving controller, after K switch closure, energy-saving controller 14 pilot relays 15, relay 15 connects with corresponding solenoid valve, thereby controls the break-make that sense channel is controlled solenoid valve.
Tested sensor output frequency value is detected by 8 programmed control frequency meter FJ1-FJ8, adopt asynchronous parallel detection technique to realize real in the error of indication, response time load characteristic is examined and determine, 1 pair of 8 part flow arrangement 3 is designed to have the seal of certain gas-storing capacity according to rules traffic requirement, when there is a certain amount of variation in flow controller group 4 flows, can keep all the other flows to keep substantially constant, realize the measurement of this device stability of flow, the all solenoid valves of the utility model are all controlled by passive electrical magnet valve electricity-saving controller, realize solenoid valve economize on electricity without heating function, avoid potential safety hazard.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. catalytic combustion type methane transducer automatic calibrator, it is characterized in that, comprise: the solenoid valve group passage connecting successively, one-way control valve group, part flow arrangement and flow controller group, described flow controller group is connected with portable instrument sense channel solenoid valve group with sensor sense channel solenoid valve group respectively, described sensor sense channel solenoid valve group is controlled solenoid valve group with sensor sense channel interface and sensor passage back to zero respectively and is connected, described portable instrument sense channel solenoid valve group is controlled solenoid valve group with portable instrument sense channel interface and portable instrument passage back to zero respectively and is connected, described sensor passage back to zero is controlled solenoid valve group and is all connected with back to zero exhaust apparatus with described portable instrument passage back to zero control solenoid valve group.
2. catalytic combustion type methane transducer automatic calibrator according to claim 1, is characterized in that, described part flow arrangement is 1 pair of 8 part flow arrangement.
3. catalytic combustion type methane transducer automatic calibrator according to claim 2, is characterized in that, described flow controller group is provided with 8 passages.
4. catalytic combustion type methane transducer automatic calibrator according to claim 2, is characterized in that, described part flow arrangement is connected with gas exhausting valve.
5. catalytic combustion type methane transducer automatic calibrator according to claim 1, it is characterized in that, described solenoid valve group passage is connected with solenoid valve electricity-saving control device, and described solenoid valve electricity-saving control device comprises K switch, energy-saving controller and the relay connecting successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131589.4U CN203786104U (en) | 2014-03-21 | 2014-03-21 | Automatic calibrating device for catalytic combustion type methane sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131589.4U CN203786104U (en) | 2014-03-21 | 2014-03-21 | Automatic calibrating device for catalytic combustion type methane sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786104U true CN203786104U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131589.4U Expired - Fee Related CN203786104U (en) | 2014-03-21 | 2014-03-21 | Automatic calibrating device for catalytic combustion type methane sensor |
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| Country | Link |
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| CN (1) | CN203786104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031419A (en) * | 2019-04-08 | 2019-07-19 | 中国矿业大学 | A kind of automatic calibrator of non-dispersive infrared methane sensor |
| CN110308105A (en) * | 2019-04-24 | 2019-10-08 | 中国矿业大学 | Non-dispersive infrared methane sensor verification system based on cloud platform |
-
2014
- 2014-03-21 CN CN201420131589.4U patent/CN203786104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031419A (en) * | 2019-04-08 | 2019-07-19 | 中国矿业大学 | A kind of automatic calibrator of non-dispersive infrared methane sensor |
| CN110308105A (en) * | 2019-04-24 | 2019-10-08 | 中国矿业大学 | Non-dispersive infrared methane sensor verification system based on cloud platform |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140820 Termination date: 20150321 |
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| EXPY | Termination of patent right or utility model |