CN103104805B - Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed - Google Patents

Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed Download PDF

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Publication number
CN103104805B
CN103104805B CN201310075427.3A CN201310075427A CN103104805B CN 103104805 B CN103104805 B CN 103104805B CN 201310075427 A CN201310075427 A CN 201310075427A CN 103104805 B CN103104805 B CN 103104805B
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cabinet
gas
controller
measuring
sensor
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CN103104805A (en
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李士开
唐有生
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TANGSHAN JIANHUA AUTOMATIC CONTROL INSTALLATION FACTORY
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TANGSHAN JIANHUA AUTOMATIC CONTROL INSTALLATION FACTORY
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Abstract

A kind of gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed, gas chamber piston is provided with in gas cabinet, the top of gas cabinet is provided with inspection platform, measuring device is arranged on inspection platform, described measuring device comprises the sensor be arranged on gas cabinet cabinet roof repairing platform, this sensor is connected with controller by cable, and controller is connected with upper-position unit.Sensor is the one in explosion-proof type large-power supersonic transducer or explosion-proof type radar levelmeter.Controller comprises controller housing and is arranged on the display device on controller housing, is also provided with the single-chip microcomputer for changing and controlling and control circuit in this controller housing.This measuring device structure is simple, sensor, controller and upper-position unit is carried out installation and is connected; Method is unique, safe and reliable, because sensor and gas chamber piston are without directly contacting, and can be shown by measurement parameter in real time, real-time, economical and practical; Control flexibly, navigability is strong.

Description

Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed
Technical field
The invention belongs to technical field of industrial measurement, relate to the measuring device of a kind of gas cabinet cabinet position, cabinet appearance, cabinet speed.
Background technique
Gas cabinet, as one of important production facility of industrial enterprise, has extremely important effect in many-sides such as storage, scheduling gas, energy-saving and environmental protection.Therefore gas cabinet cabinet position, cabinet appearance, gas chamber piston travelling speed (cabinet speed) are the extremely important parameter of gas cabinet in production run.The traditional measurement of these parameters is all use mechanical device, the motion conditions of piston is transmitted out by driving mechanism, by the encoder that is connected with mechanical mechanism or sensor, indirectly calculate these parameters, its drawback is: 1, measuring mechanical transmission mechanism measurement error is larger; 2, because having that more motion and its maintenance of rotary component are large and rate of fault is high; 3, real-time is poor, particularly the measurement difficulty of gas chamber piston travelling speed.
Summary of the invention
The present invention be directed to the defect existing for method of measurement of traditional gas cabinet measurement parameter, provide that a kind of gas cabinet cabinet position, cabinet using noncontacting proximity sensor to carry out gas cabinet parameter measurement holds, the measuring device of cabinet speed.
Realize foregoing invention object by the following technical solutions: a kind of gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed, gas chamber piston is provided with in gas cabinet, the top of gas cabinet is provided with inspection platform, measuring device is arranged on inspection platform, described measuring device comprises the sensor be arranged on gas cabinet cabinet roof repairing platform, this sensor is connected with controller by cable, and controller is connected with upper-position unit.
Sensor is the one in explosion-proof type large-power supersonic transducer or explosion-proof type radar levelmeter.
Controller comprises controller housing and is arranged on the display device on controller housing, is also provided with the single-chip microcomputer for changing and controlling and control circuit in this controller housing.
This measuring device structure disclosed in this invention is simple, sensor, controller and upper-position unit is carried out installation and is connected; Method is unique, safe and reliable, because sensor and gas chamber piston are without directly contacting, and can be shown by measurement parameter in real time, real-time, economical and practical; Control flexibly, navigability is strong.
Accompanying drawing explanation
Fig. 1 is linkage structure schematic diagram of the present invention.
Fig. 2 is the structural representation of explosion-proof type large-power supersonic transducer.
Fig. 3 is controller principle block diagram.
Fig. 4 is controller external structure schematic diagram.
In figure: sensor 1, inspection platform 2, gas cabinet 3, controller 4, upper-position unit 5, gas chamber piston 6, guided wave cone 7, sensor outer housing 8, packing material 9, high-energy wave sounding body 10, outgoing cable 11, controller housing 12, display device 13.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
There is coal gas gas cabinet 3 inside, coal gas top layer arranges a gas chamber piston 6, and the top of gas cabinet 3 is provided with inspection platform 2, and the sensor 1 in measuring device is arranged on inspection platform 2, this sensor 1 is connected with controller 4 by cable, and controller 4 is connected with upper-position unit 5.
Preferably, explosion-proof type large-power supersonic transducer selected by sensor 1, or in explosion-proof type radar levelmeter.
The display device 13 that controller 4 comprises controller housing 12 and is arranged on controller housing 12, is also provided with the single-chip microcomputer for changing and controlling and control circuit in this controller housing 12.Single-chip microcomputer is connected with display device, change-over circuit, alarm output circuit respectively, wherein change-over circuit is connected with explosion-proof type large-power supersonic transducer, single-chip microcomputer is also connected with upper-position unit, and single-chip microcomputer can by the various parameter real-time Transmission of gas cabinet to upper-position unit, convenient monitoring.4-20mA standard signal that controller can provide upper-position unit to need and RS485 digital communication, and corresponding control signal can be exported according to the situation of surveyed parameter.Be provided with parameter calculating module in the single-chip microcomputer of controller, export again after computing module calculates after data are collected, and shown by display device.Upper-position unit refers to computer for controlling or the programmable controller of custom system.
The present embodiment is described with explosion-proof type large-power supersonic transducer.
Explosion-proof type large-power supersonic transducer is installed on gas cabinet inspection platform, and guided wave cone 7 is wherein placed in below, and the shell 8 that high-energy wave shedder 10 is placed in this ultrasonic transducer is inner, and gas chamber piston upper surface is aimed in high energy acoustic emission direction.High-energy wave shedder 10 is the parameters according to high energy sound wave, carries out the metal body of manufacturing.Have packing material 9 between high-energy wave shedder 10 and shell 8, this packing material 9 has the function of explosive-proof protector, and the outgoing cable 11 being arranged on the high-power transducer end of explosion-proof type is connected with the change-over circuit in controller.The inside of this explosion-proof type large-power supersonic transducer adopts high efficiency vibrational mode, utilizes high energy technology of acoustic wave, completes electric energy to ultrasound, ultrasound to the transformation of energy of electric energy.Adopt high energy technology of acoustic wave, transducer has higher sensitivity and antijamming capability and stable performance.Ultrasonic pulse is launched in the timing under the excitation of pulse signal of explosion-proof type large-power supersonic transducer, and ultrasonic pulse arrives gas chamber piston surface back reflection and returns, and is converted to electrical signal, deliver to controller and process by receive MUT.
The time lag that this measuring device utilizes ultrasound to propagate in atmosphere completes the measurement to target.This device when measuring not with testee surface contact simultaneously also without any the mechanical connection of form, be therefore called non-contact measurement.Because directly do not contact with measured object, sensor is fixed on measured article (i.e. gas chamber piston) top, so there is no any moving machinery parts for measuring, such that accuracy of measurement is high, Installation and Debugging are simple, long service life, rate of fault are very low.
Send the ultrasonic signal moment to reflecting the time lag T arriving transducer again from body surface from transducer, drawn the numerical value of tested cabinet position H by single-chip microcomputer computing; The volume V(cabinet calculating tested gas according to the radiuscope of round gas cabinet tank body holds); According to the variable quantity of cabinet bit value in the unit time, calculate travelling speed and the cabinet speed St of gas chamber piston, its calculation method is:
H=S-T(C+0.607t) ... formula 1
In formula 1: H is the cabinet position of gas cabinet, unit: rice
S is the range of setting, unit: rice
T is the time lag, unit: second
C is the aerial velocity of propagation of sound wave, unit: meter per second
T is the ambient temperature of measure field, unit: degree Celsius
V=π R 2h1 ... formula 2
In formula 2: V is that the cabinet of gas cabinet holds, unit: cubic meter
R is the radius of gas cabinet, unit: rice
H1 is the revised cabinet position of gas cabinet, unit: rice
St=(S1-S0)/t1 × 60 ... formula 3
In formula 3: St is the travelling speed of gas chamber piston, unit: m/min
S1 is the cabinet position in t1 moment, unit: rice
S0 is the cabinet position in t0 moment, unit: rice
T1 is the time of t0 to t1, unit: second
Above-mentioned calculating formula is all set in the computing module of single-chip microcomputer, after single-chip microcomputer have received the data of collection, the real-time parameter of gas cabinet is gone out through this special calculated with mathematical model, and show with display device, also can according to the needs of upper-position unit, by real-time information transmission to upper-position unit, complete the Real-Time Monitoring of the cabinet position to gas cabinet, cabinet appearance, the multiple parameter of cabinet speed.

Claims (1)

1. a measuring device for gas cabinet cabinet position, cabinet appearance, cabinet speed, be provided with gas chamber piston in gas cabinet, the top of gas cabinet is provided with inspection platform, measuring device is arranged on inspection platform, it is characterized in that, described measuring device is explosion-proof type large-power supersonic transducer explosion-proof type large-power supersonic transducer is arranged on gas cabinet inspection platform, and guided wave cone is wherein placed in below,high-energy wave shedder is placed in the enclosure of this ultrasonic transducer, and gas chamber piston upper surface is aimed in high energy acoustic emission direction; Have packing material between high-energy wave shedder and shell, this packing material has the function of explosive-proof protector; be arranged on explosion-proof type large-power supersonic transducerthe outgoing cable of end is connected with the change-over circuit in controller, and controller is connected with upper-position unit; Described controller comprises controller housing and is arranged on the display device on controller housing, is also provided with the single-chip microcomputer for changing and controlling and control circuit in this controller housing.
CN201310075427.3A 2013-03-11 2013-03-11 Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed Active CN103104805B (en)

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Application Number Priority Date Filing Date Title
CN201310075427.3A CN103104805B (en) 2013-03-11 2013-03-11 Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed

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Application Number Priority Date Filing Date Title
CN201310075427.3A CN103104805B (en) 2013-03-11 2013-03-11 Gas cabinet cabinet position, cabinet hold, the measuring device of cabinet speed

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CN103104805A CN103104805A (en) 2013-05-15
CN103104805B true CN103104805B (en) 2016-01-20

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107677225A (en) * 2017-09-26 2018-02-09 中冶南方工程技术有限公司 Thin oil sealing gas cabinet cabinet holds computational methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202392433U (en) * 2011-12-19 2012-08-22 冯磊 Automatic monitoring device for balance of dry type gas tank piston
CN202419120U (en) * 2011-12-16 2012-09-05 江苏汉光生物工程有限公司 Marsh gas pressure stabilizing cabinet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629792B2 (en) * 1980-03-13 1987-03-02 Mitsubishi Heavy Ind Ltd
JPS61127997A (en) * 1984-11-27 1986-06-16 Mitsubishi Heavy Ind Ltd Gas holder operating device
CN2615646Y (en) * 2003-03-28 2004-05-12 叶伟忠 Dry type gas chamber level acquisition sensor
CN201964926U (en) * 2010-12-07 2011-09-07 宋江喜 Device for measuring depth of piston of gas holder
CN102607664A (en) * 2012-04-09 2012-07-25 天津市博业自控技术有限公司 Gas cabinet volume measuring device
CN203099303U (en) * 2013-03-11 2013-07-31 唐山市建华自动控制设备厂 Measuring device of holder level, holder volume and holder speed of gas holder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202419120U (en) * 2011-12-16 2012-09-05 江苏汉光生物工程有限公司 Marsh gas pressure stabilizing cabinet
CN202392433U (en) * 2011-12-19 2012-08-22 冯磊 Automatic monitoring device for balance of dry type gas tank piston

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