CN106918325A - Gas storage holder piston horizontal drift degree automatic monitoring system and method - Google Patents
Gas storage holder piston horizontal drift degree automatic monitoring system and method Download PDFInfo
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- CN106918325A CN106918325A CN201511004534.2A CN201511004534A CN106918325A CN 106918325 A CN106918325 A CN 106918325A CN 201511004534 A CN201511004534 A CN 201511004534A CN 106918325 A CN106918325 A CN 106918325A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention provides gas storage holder piston horizontal drift degree automatic monitoring system, the system includes ultrasonic distance-measuring sensor and control and signal processing module, the ultrasonic distance-measuring sensor is mounted equidistant along the piston circumference, and the control is installed on piston centre point with signal processing module；The symmetrical ultrasonic distance-measuring sensor in each two center of circle is one group measures the distance of gas holder inwall by pulse echo method, and be connected with signal processing module with control by respective signal transmssion line, the distance value for each detecting is sent to control and signal processing module, piston horizontal drift value and wander azimuth is calculated.The detection method and automatic monitoring system of the large-scale gas storage holder piston horizontal drift state that the present invention is provided, horizontal drift degree when can be run to piston detect that detection data can be transmitted, shown and alarm.
Description
Technical field
The present invention relates to gas storage holder piston horizontal drift degree automatic monitoring system and method.
Background technology
The gas holder for storing coal gas is energy industry and the essential main facilities of steel and iron industry.Gas chamber has two kinds of wet gas cabinet and dry gas holder by sealing means.Wet gas cabinet is with the telescopic cylindrical structural of water-stop；Dry gas holder is with the piston cylinder operator that dilute (dry) oily or soft film is sealed.Dry gas holder is compared with wet gas cabinet, have the advantages that gas storage pressure high, pressure stability, long service life, coal gas are not humidified, pollute less, floor space is small and safe operation is reliable, present gas holder design uses dry gas holder mostly, dry gas holder is a cylinder outside it, internal piston makes garden arch shape, it is a circle, the position of piston, i.e. cabinet position, indicate gas-storing capacity, the up and down motion of piston indicates the change of gas holder gas-storing capacity, therefore cabinet position is the parameter that monitoring is had to during gas chamber is designed.And piston mode, including whether piston flat surface inclines, whether piston horizontal level occurs the very important security parameters such as drift.If piston run-off the straight and when gradient reaches to a certain degree in the process of running, it may occur that piston clamp rail, causes coal gas in cabinet over-pressed or under-voltage, piston will occur when serious and rush to summit or bottomed, cause heavy losses and potential safety hazard.If piston drifts about in the horizontal direction, tilting of the piston, sealing epithelium can be caused to pull apart, consequently, it is possible to causing gas leak, gas holder blast can directly occur when serious, produce serious accident, and economic loss is huge.Therefore it is guarantee gas chamber safe operation, it is necessary to the running state parameter of piston in gas chamber is detected using automation means, and realizes effective remote monitoring.By sensor and intelligence instrument automatic data collection field data, and remote transmission is to monitoring management region, position, gradient and the driftance parameter of gas cabinet piston are shown in real time, so as to judge the running status of gas holder, and early warning or alarm are realized to abnormality, the safe operation to ensureing gas chamber is significant.
Existing gas chamber operating state monitoring system is mainly the monitoring function to pressure, capacity, thermal parameter, cabinet position height etc., and monitoring system in recent years also achieves the monitoring to piston inclination.But, domestic and international existing gas holder operating state monitoring system is not carried out the detection to piston horizontal drift degree, also without the detection method of this environment lower piston driftance of document report.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of can quick, accurate measurements gas storage holder piston horizontal drift degree system and method, therefore, the present invention uses following technical scheme：
Gas storage holder piston horizontal drift degree automatic monitoring system, the system includes ultrasonic distance-measuring sensor and control and signal processing module, the ultrasonic distance-measuring sensor is mounted equidistant along the piston circumference, and the control is installed on piston centre point with signal processing module；The symmetrical ultrasonic distance-measuring sensor in each two center of circle is one group measures the distance of gas holder inwall by pulse echo method, and be connected with signal processing module with control by respective signal transmssion line, the distance value for each detecting is sent to control and signal processing module, piston horizontal drift value and wander azimuth is calculated.
On the basis of using above-mentioned technical proposal, the present invention can also be using technical scheme further below：
The method of described gas storage holder piston horizontal drift degree automatic monitoring system, the described method comprises the following steps：
(1) ultrasonic distance-measuring sensor measurement locally with the distance of gas holder inwall, and by distance value be converted into electric signal send to control and signal processing module；
(2) control sends into data analysis module with signal processing module by the signal of A/D converter sampling analog channel after taking average；
(3) control is detected with the data analysis module of signal processing module to the validity of measurement data, and according to foregoing exceptional value discrimination standard rejecting abnormalities value, and the measurement data that will retain sends into parameter computing module；
(4) control obtains piston horizontal drift value and wander azimuth with the parameter computing module of signal processing module by setting up model, and this data is sent into remote communication module；
(5) piston horizontal drift value and wander azimuth are converted into traffic symbols by control with the remote communication module of signal processing module, and long-range Monitoring Data administrative center is sent to by correspondence；
(6) computer of Monitoring Data administrative center receives parameter by serial communication interface, and the piston horizontal drift data and state of gas storage holder are shown in software interface；If driftance parameter has exceeded the warning value of setting, computer software display alarm information is concurrently spoken visual alarm.
The model is as follows：
It is two concentric circles by gas holder inner circle and outside piston, home position is set to the origin of coordinates (0,0)；The radius of outside piston is r1, and gas holder inner circle radius are r2；If the home position of outside piston changes, i.e. expression piston there occurs drift, calculate home position round beyond the Great Wall, you can obtain the size and angle of piston translation；Sensor is installed on the circumferential point S1 (x1 of horizontal direction, y1), connect gas holder inner circle center of circle O (0,0) with S1 (x1, y1 gas holder inner circle) is handed in a point P1, now S1P1 for S1 measure apart from d1, therefore have r2-d1=| OS1 | r2-d1=| OS1 |, i.e.,
(x0+r1)2+y02=(r2-d1)2, piston horizontal drift value and wander azimuth (x0, y0) are obtained final product by calculating.
The methods described also setting including checking distance and the differentiation apart from exceptional value：When piston horizontal positioned and without being measured to system when drifting about, each ultrasonic distance-measuring sensor obtains the distance value of and gas holder inner circle, and this value is checking distance；By the comparing with checking distance before being calculated with Mathematical Modeling, by abnormality value removing.
N sensor is uniformly installed along outside piston, these sensor coordinates is made for (xi, yi), i=1,2 ... n, n >=2；It is θ i to make i-th sensor and X-axis angle,
Then
Make Pij=cos θ i-cos θ j, Qij=sin θ i-sin θ j and Dij=[(r2-di)2-(r2-dj)2]/(2*r1)
Correlation analysis and regression equation are introduced, is calculatedGroup (Pij, Qij, Dij)；
Any two groups (Pij, Qij, Dij) and (Pmn, Qmn, Dmn) are taken, as long as Pij ≠ Pmn and Qij ≠ Qmn, you can simultaneous equations
Obtain piston horizontal drift value and wander azimuth (x0, y0).
Due to using technical scheme, beneficial effects of the present invention to be：The detection method and automatic monitoring system of the large-scale gas storage holder piston horizontal drift state that the present invention is provided, horizontal drift degree when can be run to piston detect that detection data can be transmitted, shown and alarm.The detection method and device for being provided carry out comprehensive Design in can also incorporating existing cabinet level monitoring system, and drifting state monitoring function is increased on the basis of existing capability.The use of the system can further strengthen the safety guarantee of gas storage holder operation, and the gas leak caused the problems such as prevent from excessively causing tilting of the piston due to piston drift, pull apart sealing ring, prevention occurs serious explosion accident.
Brief description of the drawings
The gas storage holder piston horizontal drift degree automatic monitoring system that Fig. 1 is provided for the present invention.
The model schematic that Fig. 2 is provided for the present invention.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1, gas cabinet piston horizontal drift degree automatic monitoring system, the system includes ultrasonic distance-measuring sensor 4 and control and signal processing module 3, and the ultrasonic distance-measuring sensor is mounted equidistant along the piston circumference, and the control is installed on the central point of piston 2 with signal processing module；The symmetrical ultrasonic distance-measuring sensor in each two center of circle is one group measures the distance of the inwall of gas holder 1 by pulse echo method, and be connected with signal processing module with control by respective signal transmssion line, the distance value for each detecting is sent to control and signal processing module, piston horizontal drift value and wander azimuth is calculated.Generally, driftance sensor assembly is made up of eight ultrasonic distance-measuring sensors, and ultrasonic distance-measuring sensor is mounted equidistant along piston circumference；Eight sensor installation directions are followed successively by due east, 45 degree of the southeast, due south, 45 degree of southwest, due west, 45 degree of northwest, due north, 45 degree of northeast.
The control includes microcontroller, sampling module, data analysis module, parameter computing module, remote communication module with signal processing module.
The method of described gas storage holder piston horizontal drift degree automatic monitoring system, the described method comprises the following steps：
(1) ultrasonic distance-measuring sensor measurement locally with the distance of gas holder inwall, and by distance value be converted into electric signal send to control and signal processing module；
(2) control sends into data analysis module with signal processing module by the signal of A/D converter sampling analog channel after taking average；
(3) control is detected with the data analysis module of signal processing module to the validity of measurement data, and according to foregoing exceptional value discrimination standard rejecting abnormalities value, and the measurement data that will retain sends into parameter computing module；
(4) control obtains piston horizontal drift value and wander azimuth with the parameter computing module of signal processing module by setting up model, and this data is sent into remote communication module；
(5) piston horizontal drift value and wander azimuth are converted into traffic symbols by control with the remote communication module of signal processing module, and long-range Monitoring Data administrative center is sent to by correspondence；
(6) computer of Monitoring Data administrative center receives parameter by serial communication interface, and the piston horizontal drift data and state of gas storage holder are shown in software interface；If driftance parameter has exceeded the warning value of setting, computer software display alarm information is concurrently spoken visual alarm.
Parameter computing module is by setting up as drag obtains piston horizontal drift value and wander azimuth：
It is two concentric circles by gas holder inner circle and outside piston, as shown in Fig. 2 home position is set to the origin of coordinates (0,0)；The radius of outside piston is r1, and gas holder inner circle radius are r2；If the home position of outside piston changes, i.e. expression piston there occurs drift, calculate home position round beyond the Great Wall, you can obtain the size and angle of piston translation；Sensor is installed on the circumferential point S1 (x1 of horizontal direction, y1), connect gas holder inner circle center of circle O (0,0) with S1 (x1, y1 gas holder inner circle) is handed in a point P1, now S1P1 for S1 measure apart from d1, therefore have r2-d1=| OS1 | r2-d1=| OS1 |, i.e.,
(x0+r1)2+y02=(r2-d1)2, piston horizontal drift value and wander azimuth (x0, y0) are obtained final product by calculating.
As long as there are 2 effective distance measuring points (any two sensor) in theory, can just be calculated (x0, y0).In order to improve accuracy in the middle of actual, n sensor circumferentially can be uniformly installed, make these sensor coordinates for (xi, yi), i=1,2 ... n, n >=2.It is θ i to make i-th sensor and X-axis angle,
Then
Make Pij=cos θ i-cos θ j, Qij=sin θ i-sin θ j and Dij=[(r2-di)2-(r2-dj)2]/(2*r1)
We introduce correlation analysis and regression equation, can be calculatedGroup (Pij, Qij, Dij) (Pij, Qij, Dij).
Any two groups (Pij, Qij, Dij) and (Pmn, Qmn, Dmn) (Pij, Qij, Dij) and (Pmn, Qmn, Dmn) are taken, as long as Pij ≠ Pmn and Qij ≠ QmnPij ≠ Pmn and Qij ≠ Qmn, you can simultaneous equations
Try to achieve more accurate piston horizontal drift value and wander azimuth (x0, y0).
Claims (5)
1. gas storage holder piston horizontal drift degree automatic monitoring system, it is characterised in that the system includes ultrasound
Ripple distance measuring sensor and control and signal processing module；The ultrasonic distance-measuring sensor is along described piston circumference etc.
Away from installation, the control is installed on piston centre point with signal processing module；The symmetrical ultrasonic wave in each two center of circle
Distance measuring sensor is one group measures the distance of gas holder inwall by pulse echo method, and is passed by respective signal
Defeated line is connected with control with signal processing module, and the distance value for each detecting is sent to control and signal transacting
Module, calculates piston horizontal drift value and wander azimuth.
2., using the method for the gas storage holder piston horizontal drift degree automatic monitoring system described in claim 1, it is special
Levy and be, the control includes microcontroller, sampling module, data analysis module, ginseng with signal processing module
Number computing module, remote communication module, the described method comprises the following steps：
(1) ultrasonic distance-measuring sensor measurement locally with the distance of gas holder inwall, and distance value is converted into electric signal
Send control and signal processing module to；
(2) signal that control passes through A/D converter sampling analog channel with signal processing module, sends into after taking average
Data analysis module；
(3) control to detect the validity of measurement data with the data analysis module of signal processing module, according to
Foregoing exceptional value discrimination standard rejecting abnormalities value, and the measurement data that will retain sends into parameter computing mould
Block；
(4) control and the parameter computing module of signal processing module by set up model obtain piston horizontal drift value and
Wander azimuth, and this data is sent into remote communication module；
(5) be converted into for piston horizontal drift value and wander azimuth with the remote communication module of signal processing module by control
Traffic symbols, are sent to long-range Monitoring Data administrative center by correspondence；
(6) computer of Monitoring Data administrative center receives parameter by serial communication interface, aobvious in software interface
Show the piston horizontal drift data and state of gas storage holder；If driftance parameter has exceeded the warning value of setting,
Computer software display alarm information is concurrently spoken visual alarm.
3., using the method for the gas storage holder piston horizontal drift degree automatic monitoring system described in claim 2, it is special
Levy and be, the model is as follows：
It is two concentric circles by gas holder inner circle and outside piston, home position is set to the origin of coordinates (0,0)；Piston
Cylindrical radius is r1, and gas holder inner circle radius are r2；If the home position of outside piston changes represents work
Plug there occurs drift, calculate home position round beyond the Great Wall, you can obtain the size and angle of piston translation；Pass
Sensor is installed on the circumferential point S1 (x1, y1) of horizontal direction, even gas holder inner circle center of circle O (0,0) and S1 (x1,
Y1) hand over gas holder inner circle in a point P1, now S1P1 for S1 measure apart from d1, therefore have
R2-d1=| OS1 | r2-d1=| OS1 |, i.e.,
(x0+r1)2+y02=(r2-d1)2, by calculate obtain final product piston horizontal drift value and wander azimuth (x0,
y0)。
4. the method for gas storage holder piston horizontal drift degree automatic monitoring system as claimed in claim 2, its feature
It is, the methods described also setting including checking distance and the differentiation apart from exceptional value：When piston horizontal positioned and
System is measured during without drift, each ultrasonic distance-measuring sensor obtains the distance of and gas holder inner circle
Value, this value is checking distance；By the comparing with checking distance before being calculated with Mathematical Modeling,
By abnormality value removing.
5. the method for gas storage holder piston horizontal drift degree automatic monitoring system as claimed in claim 3, it is special
Levy and be, n sensor is uniformly installed along outside piston, make these sensor coordinates for (xi, yi),
I=1,2 ... n, n >=2；It is θ i to make i-th sensor and X-axis angle,
Then
Make Pij=cos θ i-cos θ j, Qij=sin θ i-sin θ j and Dij=[(r2-di)2-(r2-dj)2]/(2*r1)
Correlation analysis and regression equation are introduced, is calculatedGroup (Pij, Qij, Dij)；
Any two groups (Pij, Qij, Dij) and (Pmn, Qmn, Dmn) are taken, as long as Pij ≠ Pmn and Qij ≠ Qmn,
Can simultaneous equations
Obtain piston horizontal drift value and wander azimuth (x0, y0).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511004534.2A CN106918325A (en) | 2015-12-28 | 2015-12-28 | Gas storage holder piston horizontal drift degree automatic monitoring system and method |
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| CN201511004534.2A CN106918325A (en) | 2015-12-28 | 2015-12-28 | Gas storage holder piston horizontal drift degree automatic monitoring system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051034A (en) * | 2018-01-09 | 2018-05-18 | 唐山市建华自动控制设备厂 | The monitoring device of gas chamber operating parameter |
| CN112002116A (en) * | 2020-08-15 | 2020-11-27 | 鞍山骏龙自动化控制***有限公司 | Network remote monitoring system of gas chamber |
| CN112032547A (en) * | 2020-09-15 | 2020-12-04 | 河北省应急管理科学研究院(河北省危险化学品登记注册中心) | Online real-time monitoring method for piston blockage and jamming in operation of gas chamber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214654A (en) * | 2004-01-27 | 2005-08-11 | Nishimu Electronics Industries Co Ltd | Piston monitoring device for gas holder |
| CN203857961U (en) * | 2014-04-24 | 2014-10-01 | 宝钢工程技术集团有限公司 | Piston inclination monitoring device for wiggins gasholder |
-
2015
- 2015-12-28 CN CN201511004534.2A patent/CN106918325A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214654A (en) * | 2004-01-27 | 2005-08-11 | Nishimu Electronics Industries Co Ltd | Piston monitoring device for gas holder |
| CN203857961U (en) * | 2014-04-24 | 2014-10-01 | 宝钢工程技术集团有限公司 | Piston inclination monitoring device for wiggins gasholder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051034A (en) * | 2018-01-09 | 2018-05-18 | 唐山市建华自动控制设备厂 | The monitoring device of gas chamber operating parameter |
| CN112002116A (en) * | 2020-08-15 | 2020-11-27 | 鞍山骏龙自动化控制***有限公司 | Network remote monitoring system of gas chamber |
| CN112032547A (en) * | 2020-09-15 | 2020-12-04 | 河北省应急管理科学研究院(河北省危险化学品登记注册中心) | Online real-time monitoring method for piston blockage and jamming in operation of gas chamber |
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Application publication date: 20170704 |