CN104165934B - A kind of gas chromatograph flow process automatic shutdown control device - Google Patents
A kind of gas chromatograph flow process automatic shutdown control device Download PDFInfo
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- CN104165934B CN104165934B CN201410051297.4A CN201410051297A CN104165934B CN 104165934 B CN104165934 B CN 104165934B CN 201410051297 A CN201410051297 A CN 201410051297A CN 104165934 B CN104165934 B CN 104165934B
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- carrier gas
- control device
- automatic shutdown
- chromatograph
- valve
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000012159 carrier gas Substances 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 241000009298 Trigla lyra Species 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The present invention relates to a kind of gas chromatograph flow process automatic shutdown control device, it is characterized in that: comprise the automatic shutdown control device main frame being connected with gas chromatograph through chromatograph power line, described gas chromatograph is connected with carrier gas steel cylinder pipeline through carrier gas pipe, described automatic shutdown control device main frame through control signal wire be placed in carrier gas steel cylinder on be connected in order to the electronic keying air-valve device circuit of control piper break-make. The present invention can realize under unmanned state, allow chromatograph carry out automatic shutdown, bearing carrier gas according to the shutdown process of standard completely, abnormal, fault and the damage of having avoided instrument detecting element to cause because of shutdown lack of standardization.
Description
Technical field
The present invention relates to a kind of gas chromatograph flow process automatic shutdown control device, particularly one and be applicable to various modelsGas chromatograph by the automatic powered-down of flow process unmanned, close the dedicated control device of carrier gas.
Background technology
In recent years, along with the development of oil chromatography detection technique, gas chromatograph in the use of power system more and moreMany, become the important instrument that ensures power equipment security of operation.
Use code according to chromatograph, gas chromatograph when start must elder generation to the carrier gas that passes into constant pressure in instrument(nitrogen), then power-on pass into another two kinds of assist gas (hydrogen, air), heats up each instrument detection system until eachSystem keeps constant temperature, just can carry out the testing of gas sample. When testing finishes, should first each gas chromatograph detection system be stoppedOnly constant temperature, closes hydrogen, air, retains carrier gas (nitrogen). After naturally cooling to normal temperature, each detection system temperature closes instrumentPower supply, closes carrier gas valve again after 15 minutes until power-off. By the operation of above normal process, can ensure that chromatograph respectively examinesSurvey element can and not lose suddenly carrier gas protection in cooling procedure because of power-off suddenly abnormal damage and fault occur, and improves instrumentThe service life of device.
For ensureing chromatograph flow process shutdown in accordance with regulations, conventional working method is to send in the process of chromatograph shutdownSpecial messenger carries out scene and waits for, and waits each detection system temperature to naturally cool to artificial powered-down and carrier gas after normal temperature. Due at every turnShutdown needs waiting time very long, and the personnel that wait for be for can leave as early as possible testing ground, often take artificially to shorten carrier gas pass into the time,Only close power supply not bearing carrier gas or not etc. instrument cooling close the way of gas with regard to forced interruption. This way has caused chromatograph fault frequentlySend out, instrument reliability of operation reduces, carrier gas also wastes loss in a large number, had a strong impact on normally carrying out of oil chromatography test.
Summary of the invention
The development object of this device is to change current gas chromatograph shutdown process and relies on artificial on duty closing completelyThe working method of power supply and bearing carrier gas, and provide a kind of easy to install, unmanned be can realize and power supply, bearing carrier gas automatically closedThe gas chromatograph flow process automatic shutdown control device of controlling.
The invention is characterized in: a kind of gas chromatograph flow process automatic shutdown control device, is characterized in that: comprise throughThe automatic shutdown control device main frame that chromatograph power line is connected with gas chromatograph, described gas chromatograph through carrier gas pipe with carryGas cylinder pipeline connect, described automatic shutdown control device main frame through control signal wire be placed on carrier gas steel cylinder in order to control valveThe electronic keying air-valve device circuit of road break-make connects.
Wherein, described electronic keying air-valve device comprises being fixed on the anchor ear on carrier gas steel cylinder, described anchor ear warpLinking arm is vertically connected with a motor mounting rack, and described motor mounting rack is provided with and exchanges forward and reverse motor with forward and reverse by exchangingMotor-driven decelerator, the below of described motor mounting rack is provided with the air valve handle that drives carrier gas Steel cylinder gas valve handle to rotateHand fixator, described air-valve handle fixator is driven and is rotated by the transmission main shaft of decelerator.
Described air-valve handle fixator is columnar structured, on the 72 ° of circular arcs of being often separated by, is drilled with on cylindrical shape lateral wallOne through hole, is respectively rotary with a fixing bolt in hole, can move forward and backward 5 grooves that snap on carrier gas Steel cylinder gas valve handle, at cylinderShape outside is upper, and along being rotary with a set screw, described linking arm is provided with the air valve position-sensing switch that can be driven by set screw, described inThe air valve of opening that air valve position-sensing switch is fixed on linking arm by left and right stops position-sensing switch, closes air valve and stop position-sensing switch and form.
The cylinder top center of described air-valve handle fixator is fixed with a linkage tube matching with decelerator transmission main shaft.
Described anchor ear is two semicircle left and right structures, uses bolted with it year carrier gas steel bottle, its inner side and bottleBody contact portion has one deck rubber antiskid pad.
Described air valve position-sensing switch is connected with the forward and reverse motor circuit of interchange.
Also comprise the carrier gas pressure-reducing valve of being located on carrier gas steel cylinder.
Described automatic shutdown control device main frame comprises that AC/DC changeover switch, power-supply controller of electric, electrotimer, centre continueElectrical equipment, alternating current generator commutation control circuit.
Advantage of the present invention:
The present invention can realize under unmanned state, allows chromatograph carry out automatically according to the shutdown process of standard completelyShutdown, bearing carrier gas, abnormal, fault and the damage of having avoided instrument detecting element to cause because of shutdown lack of standardization; The timing adopting continuesThe electrical equipment time arbitrarily of can carrying out is set, and set-up mode is flexible, and range of application is wide; Exclusive electronic keying air-valve device can be fittedFor the carrier gas steel cylinder of different height specifications, and can close reliably source of the gas, prevent carrier gas leakage, avoid the meaningless damage of carrier gasConsumption; The all parts of this control device all adopt external install and be connected, and without chromatograph itself is made any change, do not changeBecome chromatographic property indices, can not affect chromatographic normal boot-strap and test detection; This device is very applicable variousThe shutdown control of the gas chromatograph of model is used, wide application.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the electronic keying air-valve device structural representation of the embodiment of the present invention.
Fig. 3 is the main TV structure signal at the air-valve handle fixator place of the electronic keying air-valve device of the embodiment of the present inventionFigure.
Fig. 4 is the plan structure signal at the air-valve handle fixator place of the electronic keying air-valve device of the embodiment of the present inventionFigure.
1 gas chromatograph, 2 chromatograph power switches, 3 chromatograph power lines, 4 carrier gas pipes, 5 automatic shutdown controlsDevice main frame processed, 6 control signal wires, 7 carrier gas pressure-reducing valves, 811 exchange forward and reverse motor, 812 decelerators, 813 air valvesHandlebar holder, 9 air-valve handles, 10 carrier gas steel cylinders, 1111 anchor ears, 1112 motor mounting racks, 1211 open air valve stops determiningBit switch, 1212 close air valve stops position-sensing switch, and 13 fix bolt, 14 set screws.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, the present invention relates to a kind of gas chromatograph flow process automatic shutdown control device, comprise through chromatogramThe automatic shutdown control device main frame 5 that instrument power line 3 is connected with gas chromatograph 1, described gas chromatograph 1 through carrier gas pipe 4 withCarrier gas steel cylinder 10 pipelines connect, and described automatic shutdown control device main frame 5 is through control signal wire 6 and be placed in use on carrier gas steel cylinder 10Electronic keying air-valve device circuit with control piper break-make connects.
Above-mentioned electronic keying air-valve device comprises being fixed on the anchor ear 1111 on carrier gas steel cylinder, described anchor ear 1111Vertically be connected with a motor mounting rack 1112 through linking arm, described motor mounting rack be provided with exchange forward and reverse motor 811 with byExchange forward and reverse motor-driven decelerator 812, the below of described motor mounting rack is provided with to drive carrier gas Steel cylinder gas valve handleThe air-valve handle fixator 813 that hand 9 rotates, described air-valve handle fixator 813 is driven and is rotated by the transmission main shaft of decelerator.
Above-mentioned air-valve handle fixator 813 is columnar structured, on the 72 ° of circular arcs of being often separated by, bores on cylindrical shape lateral wallThere is a through hole, in hole, be respectively rotary with a fixing bolt 13, can move forward and backward 5 grooves that snap on carrier gas Steel cylinder gas valve handle,Cylindrical shape outside is upper along being rotary with a set screw 14, and described linking arm is provided with the air valve locating open that can be driven by set screwClose, described air valve position-sensing switch by left and right be fixed on linking arm open air valve stop position-sensing switch 1211, close air valve stop locating openClose 1212 compositions.
The cylinder top center of above-mentioned air-valve handle fixator is fixed with a linkage tube matching with decelerator transmission main shaft.
Above-mentioned anchor ear is two semicircle left and right structures, uses bolted with it carrier gas steel bottle, its inner side and bodyContact portion has one deck rubber antiskid pad.
Above-mentioned air valve position-sensing switch is connected with the forward and reverse motor circuit of interchange.
Also comprise the carrier gas pressure-reducing valve 7 of being located on carrier gas steel cylinder.
Above-mentioned automatic shutdown control device main frame comprises that AC/DC changeover switch, power-supply controller of electric, electrotimer, centre continueElectrical equipment, alternating current generator commutation control circuit.
When use, the anchor ear of electronic keying air-valve device 1111 is arranged on carrier gas steel cylinder 10, then air-valve handle is solidDetermine device 813 and be enclosed within on air-valve handle 9, the position of fastening completely by air-valve handle 9 fixes bolt 13 by 5 and snaps in respectively air valve handle5 grooves on hand 9, by air-valve handle 9 overall clampings, reset the position of bolt 14 on air-valve handle fixator 813,Bolt 14 can be compressed close air valve and stop the contact of position-sensing switch 1212.
To control device main frame 5 input AC 220V power supplys, then gas chromatograph 1 attaching plug is inserted to control device masterPower output socket on machine 5, opens chromatograph power switch 2. The power supply of opening on automatic shutdown control device main frame 5 is openedClose, now in main frame, the A.C. contactor KM in power-supply controller of electric starts, and connects main frame internal communication 220V power supply, control loopPower supply. Press " chromatograph start " key on main frame 5, the start relay 1J in control loop starts, its normal opened contact 1J1,1J2 closure, commutation locking normally closed contact 1J3 disconnects, and electronic keying air-valve device alternating current generator 811 is transfused to " reversion " signal,Alternating current generator 811 starts counterclockwise to be outwarded winding air-valve handle 9. When air-valve handle 9 rotations make bolt 14 be pressed onto out gasWhen valve stops the normally-closed contact of position-sensing switch 1211, alternating current generator 811 power supplys are cut off, and alternating current generator 811 stops operating. Now carryGas source of the gas is opened, and in chromatograph, passes into carrier gas, and the working power of chromatograph 1 is also connected simultaneously, can start to carry out gasThe chromatography gentle sample experiment work that arranges normally, heats up.
When experiment work finishes, it is cooling that each detection system starts nature. Only need press " the chromatograph shutdown " on main frame 5Key, testing staff can leave. The relay 2J that now shuts down starts, and its commutation locking normally closed contact 2J2 disconnects, its normal opened contact2J1 closure, starts electrotimer SJ, when arriving the predefined pass 1 power supply time of chromatograph, by timing normally closed contact SJ1Action disconnects the working power of chromatograph 1, the control loop that timing normally closed contact SJ3 action disconnects start relay 1J, makes normalClose contact 1J3 and recover normally off. Now, electrotimer enters bearing carrier gas time delay in 15 minutes, and after time delay arrives, timing is normalOpen contact SJ2 closure, input " forward " signal to electronic keying air-valve device alternating current generator 811, by air-valve handle 9 side clockwiseTo screwing. When rotating with air-valve handle 9 and be pressed onto, bolt 14 closes air valve while stopping the normally opened contact of position-sensing switch 1212, power supplyControl relay 3J starts, and disconnects its normally closed contact 3J1,3J2, and now alternating current generator 811 power supplys are cut off, alternating current generator 811Stop operating, and also power-off restoration of A.C. contactor KM in power-supply controller of electric, will install main frame 5 each several part working powers wholeCut off " chromatograph start " key, " chromatograph shutdown " key automatic resetting. By above process, just realize this device unmannedIn situation on duty, automatically close chromatograph power supply and the control of closing carrier gas by standard shutdown process.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change withModify, all should belong to covering scope of the present invention.
Claims (5)
1. a gas chromatograph flow process automatic shutdown control device, is characterized in that: comprise through chromatograph power line and gas phaseThe automatic shutdown control device main frame that chromatograph connects, described gas chromatograph is connected with carrier gas steel cylinder pipeline through carrier gas pipe, instituteState automatic shutdown control device main frame through control signal wire and be placed in the electronic keying in order to control piper break-make on carrier gas steel cylinderAir-valve device circuit connects; Described electronic keying air-valve device comprises being fixed on the anchor ear on carrier gas steel cylinder, described armfulHoop be vertically connected with a motor mounting rack through linking arm, described motor mounting rack be provided with exchange forward and reverse motor with by just exchangingThe decelerator that reverse motor drives, the below of described motor mounting rack is provided with the gas that drives carrier gas Steel cylinder gas valve handle to rotateValve handlebar holder, described air-valve handle fixator is driven and is rotated by the transmission main shaft of decelerator; Described automatic shutdown control dressPut main frame and comprise AC/DC changeover switch, power-supply controller of electric, electrotimer, auxiliary reclay, alternating current generator commutation control circuit;Also comprise the carrier gas pressure-reducing valve of being located on carrier gas steel cylinder.
2. a kind of gas chromatograph flow process automatic shutdown control device according to claim 1, is characterized in that: describedAir-valve handle fixator is columnar structured, on the 72 ° of circular arcs of being often separated by, is drilled with a through hole on cylindrical shape lateral wall, in hole, respectively revolvesHave a fixing bolt, can move forward and backward 5 grooves that snap on carrier gas Steel cylinder gas valve handle, on cylindrical shape outside, edge is rotary with oneSet screw, described linking arm is provided with the air valve position-sensing switch that can be driven by set screw, and described air valve position-sensing switch is by a left sideThe air valve of opening that the right side is fixed on linking arm stops position-sensing switch, closes air valve and stop position-sensing switch composition.
3. a kind of gas chromatograph flow process automatic shutdown control device according to claim 2, is characterized in that: described gasThe cylinder top center of valve handlebar holder is fixed with a linkage tube matching with decelerator transmission main shaft.
4. a kind of gas chromatograph flow process automatic shutdown control device according to claim 2, is characterized in that: described armfulHoop is two semicircle left and right structures, uses bolted with it year carrier gas steel bottle, and its inner side has one with body contact portionLayer rubber antiskid pad.
5. a kind of gas chromatograph flow process automatic shutdown control device according to claim 2, is characterized in that: described gasValve position switch is connected with the forward and reverse motor circuit of interchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051297.4A CN104165934B (en) | 2014-02-15 | 2014-02-15 | A kind of gas chromatograph flow process automatic shutdown control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051297.4A CN104165934B (en) | 2014-02-15 | 2014-02-15 | A kind of gas chromatograph flow process automatic shutdown control device |
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| Publication Number | Publication Date |
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| CN104165934A CN104165934A (en) | 2014-11-26 |
| CN104165934B true CN104165934B (en) | 2016-05-04 |
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| CN201410051297.4A Active CN104165934B (en) | 2014-02-15 | 2014-02-15 | A kind of gas chromatograph flow process automatic shutdown control device |
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| CN (1) | CN104165934B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105823843A (en) * | 2016-04-21 | 2016-08-03 | 安徽绿洲技术服务有限公司 | Gas chromatograph |
| CN107544412B (en) * | 2017-09-12 | 2023-05-23 | 国网福建省电力有限公司 | Control circuit of automatic sample injection device for oil chromatography test |
| CN112014499A (en) * | 2020-08-23 | 2020-12-01 | 国网山东省电力公司莱芜供电公司 | Precise gas control device of gas chromatograph |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3247827A1 (en) * | 1982-12-23 | 1984-06-28 | Ratfisch Instrumente, 8000 München | METHOD FOR CONTINUOUSLY MONITORING A GAS MIXTURE |
| GB2174016A (en) * | 1985-04-09 | 1986-10-29 | John David Bagley | Improvements in or relating to high performance liquid chromatography systems |
| CN102053164B (en) * | 2009-10-28 | 2013-05-22 | 中国科学院大气物理研究所 | System and method for automatically acquiring and analyzing trace gas |
| CN203849225U (en) * | 2014-02-15 | 2014-09-24 | 国家电网公司 | Automatic shutdown control device for gas chromatograph flow |
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| CN104165934A (en) | 2014-11-26 |
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