CN105485522B - A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device - Google Patents
A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device Download PDFInfo
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- CN105485522B CN105485522B CN201511033976.XA CN201511033976A CN105485522B CN 105485522 B CN105485522 B CN 105485522B CN 201511033976 A CN201511033976 A CN 201511033976A CN 105485522 B CN105485522 B CN 105485522B
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- pipeline
- solenoid valve
- storage tank
- contactor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control devices, it is characterised in that：Including the atmospheric control respectively with hydrocarbon pump, the circuit control system that liquefied gas air compressor machine is electrically connected and controlled by solenoid valve, the atmospheric control is connected by pipeline with pneumatic operated valve, and the solenoid valve is electrically connected with circuit control system；This product has the advantage of following three aspect：First, the emergency cut-off time shortens dramatically, second is that gas circuit pipeline has a distinct increment compared to oil circuit pipeline safety, the case where unsmooth flowing or obstruction is then not present in gas circuit pipeline, third, gas circuit pipeline at low cost only needs one bottle of 40L nitrogen, can holding tube line pressure for a long time, and nitrogen will not corroded pipeline, maintenance cost is relatively low.
Description
Technical field
The present invention relates to liquefied oil gas storage tank valve emergency cut-off system, urgent more particularly, to a kind of air-electricity linkage is cut
Disconnected control device.
Background technology
Traditional liquefied petroleum-gas station is the generation for coping with emergency, is generally adopted by and surges quick action emergency valve to cut
Disconnected gas, liquid source.The quick action emergency valve that surges is matched with remote hand oil pump, is opened and is closed using hydraulic control valve
It closes, makes valve oil cylinder automatically unloading to achieve the purpose that closing.
However the quick action emergency valve that surges is used to have certain defect, there are following security risks：First, spool, valve
The parts such as set, valve body are easy to wear, deform, and spring fatiguability, part is easily by hydraulic oil middle acid substance corrosion failure；Second is that valve
Closing time is relatively long, General reactions time nearly 10s, this overlong time for the incident of leakage of burst；Third, oil pipe
Hydraulic oil in circuit is affected by environment big, and especially winter easily freezes, and viscosity changes therewith, causes once the viscosity of oil is excessive
Unsmooth flowing even block pipeline when, occur emergency when surge quick action emergency valve just need the longer shut-in time even nothing
Method is closed.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of sensitiveer, the pipeline small liquefied petroleums affected by environment of action
Gas storage tank air-electricity linkage emergency cut-off control device.
The present invention is technical solution used by solving its technical problem：
A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device, it is characterised in that：Including being pumped respectively with hydrocarbon,
The atmospheric control of circuit control system and controlled by solenoid valve that liquefied gas air compressor machine is electrically connected, the pneumatic control system
System is connected by pipeline with pneumatic operated valve, and the solenoid valve is electrically connected with circuit control system.
Further, the circuit control system includes main enabling button with what city was electrically connected, enabling what button was in series to answer with main
Position button and first, second A.C. contactor CJ, CJ0, are connected on alternating current and answer after the first, second ac contactor coil parallel connection
Between the button of position, the both ends of the reset button are parallel with the normally opened contact CJ1 of the first A.C. contactor, the second A.C. contactor
Normally opened contact respectively with hydrocarbon pump, liquefied gas air compressor machine connect, the normally-closed contact CJ01 and line solenoid valve of the second A.C. contactor
Circle series connection.
As being further improved for said program, the circuit control system further includes alarm and alarm lamp, institute
State the both ends for being connected to alternating current after alarm and alarm lamp parallel connection by the normally-closed contact CJ2 of one first A.C. contactor.
Further, the atmospheric control includes pneumatic supply, the pipeline for being connected to pneumatic supply and pneumatic operated valve, on the pipeline
It is provided with automatically exhausting pipeline, the solenoid valve includes a normally closed solenoid valve and a normally open solenoid valve, and the normally closed solenoid valve is set
It is placed on automatically exhausting pipeline, the normally open solenoid valve is set to pneumatic supply exit.
As being further improved for said program, manual exhaust pipeline and pressure release bypass pipe are additionally provided on the pipeline
Road, the normally open solenoid valve is between automatically exhausting pipeline and manual exhaust pipeline, one end position of the pressure release by-pass line
Between automatically exhausting pipeline and pneumatic operated valve, the other end of pressure release by-pass line be located at normally open solenoid valve and manual exhaust pipeline it
Between.
As being further improved for said program, it is described it is main enable button be provided with several, it is each it is main enable button series connection connect
It connects and sets up separately in different positions.
As being further improved for said program, the circuit control system further includes power supply indicator.
As being further improved for said program, the hydrocarbon pump, liquefied gas air compressor machine and solenoid valve are converted by a linkage
Switch is realized and is uniformly controlled.
As being further improved for said program, the exit of the pneumatic supply is provided with pressure gauge.
As being further improved for said program, the pneumatic supply uses nitrogen.
The beneficial effects of the invention are as follows：There is the advantage of following three aspect compared with traditional emergency shutoff device：
First, the emergency cut-off time shortens dramatically：Touch it is main enable button after, the closing time 3s of pneumatic emergency stop valve,
Far below the 10s that stoste moves quick action emergency valve；
Second is that gas circuit pipeline has a distinct increment compared to oil circuit pipeline safety：There are running of hydraulic power oil for crude oil road pipeline not
Freely, situations such as even blocking, largely affects the closing of quick action emergency valve, and hydraulic oil there is also leakage can
Can, can be great security risk such as in the internal leakage of gas station, and unsmooth flowing or the feelings of obstruction are then not present in gas circuit pipeline
Condition；In addition, whether the pressure gauge Observable gas circuit pipeline being arranged in pneumatic supply exit has leakage, so as to timely processing；Air pressure
Source uses nitrogen, even if without any security risk if having leakage to gas station；
Third, at low cost：Oil circuit pipeline is due to there are the loss of certain hydraulic oil, regular hydraulic oil filling, if hydraulic oil
Quality it is bad, valve, the bolt etc. being also easy on damage pipeline, the cost is relatively high for maintaining；Gas circuit pipeline only needs one
Bottle 40L nitrogen, can holding tube line pressure for a long time, and nitrogen will not corroded pipeline, maintenance cost is relatively low.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiment of the present invention, rather than is all implemented
Example, without creative efforts, other that can also be obtained according to these attached drawings are set those skilled in the art
Meter scheme and attached drawing：
Fig. 1 is the circuit control system schematic diagram of present pre-ferred embodiments；
Fig. 2 is the air-path control system schematic diagram of present pre-ferred embodiments；
Fig. 3 is present pre-ferred embodiments mounting plane schematic diagram.
Specific implementation mode
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and attached drawing clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
The other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Referring to figs. 1 to Fig. 2, a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off of present pre-ferred embodiments controls
Device, includes the atmospheric control 2 of circuit control system 1 and controlled by solenoid valve, and the circuit control system includes series connection
Connection it is multiple it is main enable button A1-A7 and a reset button A8, power supply indicator, alarm, alarm lamp and first,
Second A.C. contactor；It is connected between alternating current and reset button after first, second ac contactor coil CJ, CJ0 parallel connection, institute
The both ends for stating reset button are parallel with the normally opened contact CJ1 of the first A.C. contactor, the normally opened contact of the second A.C. contactor
CJ02, CJ03, CJ04 connects with the first, second hydrocarbon pump, liquefied gas air compressor machine respectively, and hydrocarbon pumps, the quantity of liquefied gas air compressor machine
It is arranged according to actual conditions, the normally opened contact phase of each hydrocarbon pump or liquefied gas air compressor machine and second A.C. contactor
Series connection；The normally-closed contact CJ01 of second A.C. contactor connects with electromagnetic valve coil；The alarm and alarm lamp are in parallel
The both ends of alternating current are connected to by the normally-closed contact CJ2 of one first A.C. contactor afterwards.Wherein, the first A.C. contactor CJ controls
Reset button A8 and audible-visual annunciator, the second A.C. contactor CJ0 control hydrocarbon pump, liquefied gas air compressor machine and solenoid valve.Its work
It is as principle：When normal work, power supply indicator is bright, and the first A.C. contactor CJ interior loops are powered, and static iron core generates electromagnetism and inhales
Dynamic iron core is attracted by power, normally-closed contact CJ2（At audible-visual annunciator）It disconnects, normally opened contact CJ1（At reset button）It is closed,
Audible-visual annunciator is not rung at this time, alarm lamp does not work；Meanwhile second contactor CJ0 is attracted when energization, normally opened contact CJ02,
CJ03, CJ04 are closed, and hydrocarbon pump, liquefied gas liquefied gas compressor operation, normally-closed contact CJ01 are disconnected, and solenoid valve does not work.Occur
When accident, trigger any one it is main enable button, circuit control system is cut off, the power-off of the first A.C. contactor CJ interior loops, quiet
Iron core electromagnetic attraction disappears, and dynamic iron core flicks, and normally-closed contact is closed, and audible-visual annunciator and alarm lamp are powered, alarm
Ring, alarm lamp are bright；After second A.C. contactor CJ0 power-off, normally opened contact CJ02,03,04 disconnect, the first, second hydrocarbon
Pump, the power-off of liquefied gas air compressor machine are stopped transport, and normally-closed contact CJ01 is closed, electromagnetism valve events, and control pneumatic emergency stop valve is closed, and is reached
To the purpose for cutting off all danger sources.
With further reference to Fig. 2, the atmospheric control includes pneumatic supply 21, the pipeline for being connected to pneumatic supply 21 and pneumatic operated valve
22, automatically exhausting pipeline 23 is provided on the pipeline 22, the solenoid valve includes a normally closed solenoid valve 24 and a normally opened electromagnetism
Valve 25, the normally closed solenoid valve 24 are set on automatically exhausting pipeline 22, and the normally open solenoid valve 25 is set to pneumatic supply outlet
Place；Manual exhaust pipeline 23 and pressure release by-pass line 26 are additionally provided on the pipeline, the normally open solenoid valve 25 is located at automatic
Between discharge duct 22 and manual exhaust pipeline 23, one end of the pressure release by-pass line 26 is located at automatically exhausting pipeline 22 and gas
Between dynamic valve, the other end of pressure release by-pass line 26 is between normally open solenoid valve 25 and manual exhaust pipeline 23.When gas station goes out
When existing accident, any one is main to enable button be touched, that is, causes normally open solenoid valve 25 and close, cut off pneumatic supply 21, close solenoid valve
24 open, and empty nitrogen in gas path pipe 22（Pressure release trend presses solid arrow）, make pressure drop in gas circuit pipeline, cause pneumatic
Quick action emergency valve is closed, and tank field gas, liquid danger source is isolated.Meanwhile circuit control system control liquefied gas air compressor machine and hydrocarbon pump
Stop, this guarantees all danger sources to be separated.It, also can manual exhaust discharge line pressure if 24 failure of normally closed solenoid valve
（Pressure release trend presses dotted arrow）.
In addition, whether having leakage in pneumatic supply exit setting pressure gauge Observable gas circuit pipeline, so as to timely processing；Gas
Potential source uses nitrogen, even if without any security risk if having leakage to gas station.
With further reference to Fig. 3, filament is circuit control system circuit in figure, and thick line is air-path control system circuit.By scheming
As it can be seen that circuit is drawn from substation, into the electric cabinet of doorway duty room, then 2 circuits are separated, one connects at nitrogen awning
To control solenoid valve；Another then passes through tank car area, filling station, pump house until tank field, with control it is main enable button, while also controlling
The operation of liquefied gas air compressor machine in pump house, hydrocarbon pump.Gas circuit is divided into two, and one leads to tank car area, controls the urgent of tank car area
Stop valve, in addition one leads to tank field, and is passed through from tank bottom, two branch pipes are separated under each storage tank again with connect storage tank liquid phase and
Pneumatic emergency stop valve on gas phase pipeline.It is main that button is enabled to be placed on position at the six of entire gas station：Doorway duty room, tank car
Before area, filling station, at liquefied gas air compressor house and tank field, the main number for enabling button and position can be set according to actual needs
It sets.
Described above-described embodiment is to be further described to the above of the present invention, but should not this be interpreted as this hair
The range of bright above-mentioned theme is only limitted to above-described embodiment, all models that the present invention is belonged to based on the technology that the above is realized
It encloses.
Claims (5)
1. a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device, it is characterised in that：Including respectively with hydrocarbon pump, liquid
Change the atmospheric control of circuit control system and controlled by solenoid valve that gas air compressor machine is electrically connected, the atmospheric control
It is connected with pneumatic operated valve by pipeline, the solenoid valve is electrically connected with circuit control system；The circuit control system include with
City be electrically connected it is main enable button, with the main reset button for enabling button be in series and first, second A.C. contactor CJ, CJ0, the
One, it is connected between alternating current and reset button after the second ac contactor coil parallel connection, the both ends of the reset button are parallel with
The normally opened contact CJ1 of first A.C. contactor, the normally opened contact of the second A.C. contactor respectively with hydrocarbon pump, liquefied gas air compressor machine string
Connection, the normally-closed contact CJ01 of the second A.C. contactor connect with electromagnetic valve coil；
The atmospheric control includes pneumatic supply, the pipeline for being connected to pneumatic supply and pneumatic operated valve, is provided on the pipeline automatic
Discharge duct, the solenoid valve include a normally closed solenoid valve and a normally open solenoid valve, and the normally closed solenoid valve is set to automatic row
In feed channel, the normally open solenoid valve is set to pneumatic supply exit；
Be additionally provided with manual exhaust pipeline and relief pipeline on the pipeline, the normally open solenoid valve be located at automatically exhausting pipeline with
Between manual exhaust pipeline, one end of the relief pipeline between automatically exhausting pipeline and pneumatic operated valve, relief pipeline it is another
One end is between normally open solenoid valve and manual exhaust pipeline；
The hydrocarbon pump, liquefied gas air compressor machine and solenoid valve are uniformly controlled by linkage switch realization；
The pneumatic supply uses nitrogen.
2. a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device according to claim 1, feature exist
In：The circuit control system further includes alarm and alarm lamp, is passed through after the alarm and alarm lamp parallel connection
The normally-closed contact CJ2 of first A.C. contactor is connected to the both ends of alternating current.
3. a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device according to claim 1, feature exist
In：It is described it is main enable button be provided with several, it is each main to enable button be connected in series with and set up separately in different positions.
4. a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device according to claim 1, feature exist
In：The circuit control system further includes power supply indicator.
5. a kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device according to claim 1, feature exist
In：The exit of the pneumatic supply is provided with pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033976.XA CN105485522B (en) | 2015-12-31 | 2015-12-31 | A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033976.XA CN105485522B (en) | 2015-12-31 | 2015-12-31 | A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485522A CN105485522A (en) | 2016-04-13 |
| CN105485522B true CN105485522B (en) | 2018-09-14 |
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| CN201511033976.XA Active CN105485522B (en) | 2015-12-31 | 2015-12-31 | A kind of liquefied petroleum gas storage tank air-electricity linkage emergency cut-off control device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641722A (en) * | 2016-11-04 | 2017-05-10 | 西安融通石化科技有限公司 | Return pressure reduction device for oil well |
| CN106764453B (en) * | 2017-01-09 | 2018-09-28 | 黄福成 | Fluid delivery system |
| CN110775932A (en) * | 2019-11-11 | 2020-02-11 | 沧州兴达化工有限责任公司 | Remote control electromagnetic emergency cut-off device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0744550A2 (en) * | 1995-05-25 | 1996-11-27 | Compair Broomwade Ltd. | Oil recycling in screw compressor arrangements |
| CN201621350U (en) * | 2010-01-08 | 2010-11-03 | 中国石油天然气股份有限公司 | Double-gas source device of emergency stop valve of gas collecting station |
| CN203808974U (en) * | 2014-04-30 | 2014-09-03 | 陕西延长石油(集团)有限责任公司研究院 | Natural gas wellhead skid-mounted intelligent control device |
| CN205447272U (en) * | 2015-12-31 | 2016-08-10 | 珠海市安粤科技有限公司 | Controlling means is promptly cut off in electric shaft of liquefied petroleum gas storage tank gas |
-
2015
- 2015-12-31 CN CN201511033976.XA patent/CN105485522B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0744550A2 (en) * | 1995-05-25 | 1996-11-27 | Compair Broomwade Ltd. | Oil recycling in screw compressor arrangements |
| CN201621350U (en) * | 2010-01-08 | 2010-11-03 | 中国石油天然气股份有限公司 | Double-gas source device of emergency stop valve of gas collecting station |
| CN203808974U (en) * | 2014-04-30 | 2014-09-03 | 陕西延长石油(集团)有限责任公司研究院 | Natural gas wellhead skid-mounted intelligent control device |
| CN205447272U (en) * | 2015-12-31 | 2016-08-10 | 珠海市安粤科技有限公司 | Controlling means is promptly cut off in electric shaft of liquefied petroleum gas storage tank gas |
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| Publication number | Publication date |
|---|---|
| CN105485522A (en) | 2016-04-13 |
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Effective date of registration: 20190318 Address after: 519080 Unit 305-307, Area 8B, Gangle Road, Tangjiawan Town, Zhuhai High-tech Zone, Guangdong Province Patentee after: ZHUHAI ANYES TECHNOLOGY CO., LTD. Address before: 519080 Unit 606, 6th Floor, Factory Building, 8B District, Gangle Road, Tangjiawan Town, Zhuhai High-tech Zone, Guangdong Province Co-patentee before: Zhuhai Inspection Institute of Guangdong Special Equipment Inspection and Research Institute Patentee before: ZHUHAI ANYES TECHNOLOGY CO., LTD. |
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