CN204202656U - Dry gas holder piston monitoring device - Google Patents
Dry gas holder piston monitoring device Download PDFInfo
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- CN204202656U CN204202656U CN201420732930.1U CN201420732930U CN204202656U CN 204202656 U CN204202656 U CN 204202656U CN 201420732930 U CN201420732930 U CN 201420732930U CN 204202656 U CN204202656 U CN 204202656U
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Abstract
The utility model discloses a kind of dry gas holder piston monitoring device, the dry gas holder piston monitoring device that a kind of reaction velocity is fast, measuring accuracy is high mainly for providing, maintenance workload is little.The utility model comprises several laser reflection plates be arranged on piston-top surface, be arranged on explosion-proof type laser range finder above corresponding laser reflection plate, the isolation safe grid be connected by shielded cable with explosion-proof type laser range finder and the secondary treating instrument be connected with isolation safe grid with laser reflection plate one_to_one corresponding.The utility model adopts the distance measured the reflection interval of laser reflection plate between each laser reflection plate and the explosion-proof type laser range finder of correspondence, then carries out data processing through secondary treating instrument, thus obtains the parameters of piston.Because laser beam is the light velocity, can reaction velocity be increased substantially, also increase substantially measuring accuracy.The utility model only needs regularly to overhaul explosion-proof type laser range finder, and maintenance workload is little.
Description
Technical field
The utility model relates to a kind of dry gas holder piston monitoring device.
Background technology
The degree of tilt of dry gas holder piston is an important parameter of dry gas holder safe operation.Current piston gradient of dry gas tank measuring method mainly contains static pressure type mensuration, ultrasonic or radar measurements and the servo-actuated method of cable, and the corresponding device of often kind of method is had nothing in common with each other.
This device required for two kinds of measuring methods of static pressure type mensuration, ultrasonic or radar measurements all comprises four water tanks by communicating pipe intercommunication being arranged on top land, is judged the degree of tilt of piston by the liquid level change of water tank.Because moving up and down of piston can cause the fluctuation of high water tank, measurement can be made to produce error, until liquid level complete static time just can measure exact value, so the reaction velocity of gradient measurement is slow, low precision.Time in addition for ensureing piston action, cable can not be wound, also need installing cables take-up mechanism, during to ensure piston action, cable can not be wound, and this device needed for two kinds of methods also has complicated integral structure, installation workload is large, maintenance workload is large and trouble spot is many shortcoming as seen.The general treasure-house of device needed for the servo-actuated method of cable is evenly arranged on the four cover cable take-up mechanisms at gas chamber top, one end of cable is connected with dry gas holder piston, the other end is connected with take-up mechanism, the degree of tilt of piston is calculated by the photoelectric conversion device be arranged on take-up mechanism, wherein because take-up mechanism is mechanical hook-up, the error of himself can greatly reduce the precision measured, and causes low precision.Device in addition needed for the servo-actuated method of cable also needs the cable that is connected with piston and cable take-up mechanism, causes that installation workload is large, maintenance workload is large and trouble spot is many.
Utility model content
For the problems referred to above, the utility model provides the dry gas holder piston monitoring device that a kind of reaction velocity is fast, measuring accuracy is high, maintenance workload is little.
For achieving the above object, the utility model dry gas holder piston monitoring device comprises the some laser reflection plates be arranged on piston-top surface, with described laser reflection plate one_to_one corresponding and the explosion-proof type laser range finder be arranged on above corresponding laser reflection plate; Also comprise the isolation safe grid be connected by shielded cable with described explosion-proof type laser range finder and the secondary treating instrument be connected with described isolation safe grid, the line of wherein said Laser emission plate central point is regular polygon, and the center of described regular polygon is the center of circle of piston-top surface.
The utility model adopts laser range finder to send laser beam to laser reflection plate, utilize the distance measured the reflection interval of laser reflection plate between each laser reflection plate and the laser range finder of correspondence, data processing is carried out again through secondary treating instrument, thus obtain the parameters of piston, because laser beam is the light velocity, can reaction velocity be increased substantially, also increase substantially measuring accuracy.The utility model only needs regularly to overhaul laser range finder, and maintenance workload is little.The utility model only have employed laser range finder, laser reflection plate, isolation safe grid and secondary treating instrument in addition, does not need to install the cable that is connected with piston and cable take-up mechanism or cable take-up mechanism, and structure simply, installation is also simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model dry gas holder piston monitoring device;
Fig. 2 is the Size calculation schematic diagram of laser reflection plate in the utility model;
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
The utility model dry gas holder piston monitoring device comprises four laser reflection plates, 1, four the explosion-proof type laser range finders 2 be arranged on piston-top surface, laser reflection plate and explosion-proof type laser range finder one_to_one corresponding, and explosion-proof type laser range finder is arranged on the top of corresponding laser reflection plate.Monitoring device also comprises the isolation safe grid 3 be connected by shielded cable 7 with explosion-proof type laser reflection plate and the secondary treating instrument 4 be connected with described isolation safe grid 3.
The line of described Laser emission plate central point is square, and the center of described square is the center of circle of piston-top surface, and namely laser reflection plate is evenly and on the end face being arranged on piston 6 of symmetry.
Particularly, described explosion-proof type laser range finder is arranged on the case top of dry gas holder by fixed support 5.
The shape of laser reflection plate can be selected according to real needs, preferably adopts circle.The radius of described circle is
to ensure that the laser beam of explosion-proof type laser range finder can all be penetrated on laser reflection plate.Wherein α is the emission angle of the laser beam of described explosion-proof type laser range finder, and L is the distance when piston is in extreme lower position between laser reflection plate and corresponding explosion-proof type laser range finder.
The utility model adopts shielded cable transmission of signal, maskable outside electromagnetic interference, improves stability and the accuracy of data.Because the utility model is applied to dry gas holder, isolation safe grid are arranged between explosion-proof type laser range finder and secondary treating instrument, for limiting entering of dangerous electric energy, avoiding danger, improve dry gas holder and the utility model reliability of operation simultaneously.
Before dry gas holder runs, first debugging calibration is carried out to explosion-proof type laser range finder, during calibration, at least select the extreme higher position of piston, extreme lower position and 3, centre position calibration point, ensure when each calibration point piston is in balance, the data that four explosion-proof type laser range finders pass to secondary treating instrument through isolation safe grid are consistent.
In dry gas holder operational process, piston produces and moves up and down, when piston does not have run-off the straight, the data that four explosion-proof type laser range finders pass to secondary treating instrument through isolation safe grid are consistent, and secondary treating instrument can calculate the position of piston and ascending velocity or decline rate according to these data, infers the volume of coal gas thus.When piston run-off the straight, make the spacing between four laser reflection plates and corresponding explosion-proof type laser range finder that different changes occur, the distance signal measured is passed to secondary treating instrument through isolation safe grid by four explosion-proof type laser range finders, and secondary treating instrument calculates the parameter such as degree of tilt and vergence direction of piston according to the data that explosion-proof type laser range finder transmits.When piston is by card, secondary treating instrument can also calculate piston by card position.
Secondary treating instrument can be connected with PLC system, is shown on computers by many groups such as degree of tilt, coal gas volume signal, operative employee can be helped to judge the production status of dry gas holder fast.
The number of the laser reflection plate in the utility model is not limited to 4, can set according to the concrete condition at scene.
In sum, the utility model can monitor out each information parameter of dry gas holder operationally piston.The utility model have employed explosion-proof type laser range finder, laser reflection plate, isolation safe grid and secondary treating instrument, does not need to install the cable that is connected with piston and cable take-up mechanism or cable take-up mechanism, and structure simply, installation is also simple.The utility model adopts explosion-proof type laser range finder to send laser beam to laser reflection plate, utilize the distance measured the reflection interval of laser reflection plate between each laser reflection plate and the explosion-proof type laser range finder of correspondence, thus judge the parameters of piston, because laser beam is the light velocity, can reaction velocity be increased substantially, also increase substantially measuring accuracy.The utility model only needs regularly to overhaul explosion-proof type laser range finder, and maintenance workload is little.In addition, the data that in the utility model, secondary treating instrument calculates can be exported by the signal of 4 ~ 20mA, are then sent to computer system display, have versatility.
Above; be only better utility model of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should define with claim is as the criterion.
Claims (4)
1. a dry gas holder piston monitoring device, is characterized in that: comprise the some laser reflection plates be arranged on piston-top surface, with described laser reflection plate one_to_one corresponding and the explosion-proof type laser range finder be arranged on above corresponding laser reflection plate; Also comprise the isolation safe grid be connected by shielded cable with described explosion-proof type laser range finder and the secondary treating instrument be connected with described isolation safe grid, the line of wherein said Laser emission plate central point is regular polygon, and the center of described regular polygon is the center of circle of piston-top surface.
2. dry gas holder piston monitoring device according to claim 1, is characterized in that: described laser reflection plate is for circular, and the radius of described circle is
wherein α is the emission angle of the laser beam of described explosion-proof type laser range finder, and L is the distance when piston is in extreme lower position between laser reflection plate and corresponding explosion-proof type laser range finder.
3. dry gas holder piston monitoring device according to claim 1, is characterized in that: described explosion-proof type laser range finder is arranged on the case top of dry gas holder by fixed support.
4. dry gas holder piston monitoring device according to claim 1, is characterized in that: the number of described laser reflection plate is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732930.1U CN204202656U (en) | 2014-11-27 | 2014-11-27 | Dry gas holder piston monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732930.1U CN204202656U (en) | 2014-11-27 | 2014-11-27 | Dry gas holder piston monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202656U true CN204202656U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420732930.1U Active CN204202656U (en) | 2014-11-27 | 2014-11-27 | Dry gas holder piston monitoring device |
Country Status (1)
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| CN (1) | CN204202656U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546322A (en) * | 2015-12-07 | 2016-05-04 | 南京钢铁股份有限公司 | Gas holder piston drift early-warning method for converter gas holder |
| CN107143747A (en) * | 2017-06-29 | 2017-09-08 | 中冶东方工程技术有限公司 | Gas holder lifting piston location equipment and system |
| CN108332039A (en) * | 2017-01-17 | 2018-07-27 | 宝山钢铁股份有限公司 | Three dot laser formula gas chamber piston slant detection methods |
| CN108426525A (en) * | 2018-03-28 | 2018-08-21 | 唐山市建华自动控制设备厂 | A kind of measuring device and method of the gas chamber piston drift value based on machine vision |
| CN114061807A (en) * | 2021-11-02 | 2022-02-18 | 中冶南方工程技术有限公司 | Measuring device for piston torsion value of rubber film sealed gas chamber |
| CN115790532A (en) * | 2022-11-30 | 2023-03-14 | 中冶南方工程技术有限公司 | Method for measuring inclination value of gas chamber piston |
-
2014
- 2014-11-27 CN CN201420732930.1U patent/CN204202656U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546322A (en) * | 2015-12-07 | 2016-05-04 | 南京钢铁股份有限公司 | Gas holder piston drift early-warning method for converter gas holder |
| CN108332039A (en) * | 2017-01-17 | 2018-07-27 | 宝山钢铁股份有限公司 | Three dot laser formula gas chamber piston slant detection methods |
| CN107143747A (en) * | 2017-06-29 | 2017-09-08 | 中冶东方工程技术有限公司 | Gas holder lifting piston location equipment and system |
| CN108426525A (en) * | 2018-03-28 | 2018-08-21 | 唐山市建华自动控制设备厂 | A kind of measuring device and method of the gas chamber piston drift value based on machine vision |
| CN114061807A (en) * | 2021-11-02 | 2022-02-18 | 中冶南方工程技术有限公司 | Measuring device for piston torsion value of rubber film sealed gas chamber |
| CN114061807B (en) * | 2021-11-02 | 2023-05-26 | 中冶南方工程技术有限公司 | Measuring device for piston torsion value of rubber membrane sealed gas tank |
| CN115790532A (en) * | 2022-11-30 | 2023-03-14 | 中冶南方工程技术有限公司 | Method for measuring inclination value of gas chamber piston |
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