CN103982776A - LNG dispenser pipeline structure and control system thereof - Google Patents
LNG dispenser pipeline structure and control system thereof Download PDFInfo
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- CN103982776A CN103982776A CN201410248468.2A CN201410248468A CN103982776A CN 103982776 A CN103982776 A CN 103982776A CN 201410248468 A CN201410248468 A CN 201410248468A CN 103982776 A CN103982776 A CN 103982776A
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- pressure transmitter
- feeding tube
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Abstract
The invention discloses an LNG dispenser pipeline structure and a control system thereof. Pressure transmitters are mounted on a liquid adding pipe and a gun inserting seat. Only when the difference of two pressure values at the liquid adding pipe and the gun inserting seat is within an allowed range, can an LNG dispenser carry out large-circulation operation, when the difference of two pressure values at the liquid adding pipe and the gun inserting seat is too large, the large-circulation operation is forbidden, and therefore the phenomenon that LNG is stolen is effectively avoided.
Description
Technical field
The present invention relates to a kind of pipeline and control system thereof, particularly relate to a kind of pipeline structure for LNG filling machine and control system thereof.
Background technique
At present, when filling machine is during for a long time in idle condition, in liquid-feeding tube and flowmeter, temperature is higher, now needs manual operation filling machine to carry out " major cycle " and comes precooling pipeline and flowmeter, this flow in process meter can metering liquid flow through, therefore can not carry out data logging.Because refueling system exists above-mentioned leak, therefore someone will utilize this leak directly LNG Liquefied natural gas to be stored in other containers, reach the object of stealing LNG Liquefied natural gas, thereby cause the loss of gas station.
Above-mentioned " major cycle " refers to, operator are inserted in filling gun in the slotting gun platform mouth of filling machine, clicks " precooling " button from keyboard, and the rock gas in liquified natural gas tank is back to the process of liquified natural gas tank through liquid-feeding tube, muffler.
Summary of the invention
Object of the present invention is just to provide a kind of LNG filling machine pipeline structure and control system thereof, has solved prior art and has had system vulnerability, and liquid gas steal phenomenon easily occurs, damnous problem.
Object of the present invention realizes by following technical proposals:
A kind of LNG filling machine pipeline structure, comprise liquified natural gas tank, liquid-feeding tube and muffler, liquid-feeding tube one end is connected with liquified natural gas tank by liquid entering hole, the other end connects filling gun, muffler one end connects liquified natural gas tank by gas returning port, the other end connects inserts gun platform, between liquid-feeding tube and muffler, be communicated with by bypass duct, and the pneumatic valve that installation is opened and closed by electromagnetic valve in this bypass duct, the pneumatic valve of flowmeter being installed on liquid-feeding tube and being opened and closed by electromagnetic valve is all provided with pressure transmitter on liquid-feeding tube He on slotting gun platform.
A kind of control system of described LNG filling machine pipeline structure, comprise control mainboard, control chip and the storage module being connected with control chip and various interface circuit are set on described control mainboard, described interface circuit comprises power interface, the first pressure transmitter interface, the second pressure transmitter interface, flowmeter interface, keyboard input interface, IC card reader interface, display interface, solenoid valve interface, printer interface, wherein:
Power interface, for accessing externally fed power supply, delivers to control mainboard after treatment;
The first pressure transmitter interface, for accessing the first pressure transmitter, Real-time Collection liquid inlet pipe pressure signal also transfers to control chip;
The second pressure transmitter interface, for accessing the second pressure transmitter, Real-time Collection is inserted gun platform mouth pressure signal and is transferred to control chip;
Flowmeter interface, for access flow meter, Real-time Collection flux signal also transfers to control chip;
Keyboard input interface, for accessing keyboard, inquires about, arranges mainboard parameter, inquiry transaction record;
IC card reader interface, for reading and writing IC card;
Display interface, for connecting display device, shows related data in real time;
Solenoid valve interface, is connected with each solenoid valve.
Compared with prior art, beneficial effect of the present invention is: simple in structure, reasonable in design, gather the pressure data of liquid inlet pipe and slotting gun platform mouth simultaneously and compare, while only having difference when two place's force value in permission range, just allow filling machine " major cycle " operation, when two place's force value differences are when excessive, can forbid carrying out major cycle operation, thereby can effectively prevent that the situation that LNG Liquefied natural gas is stolen from occurring.
Brief description of the drawings
Fig. 1 is pipeline structure figure of the present invention;
Fig. 2 is control system module connection diagram of the present invention;
Fig. 3 is the control flow block diagram of control system of the present invention.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
As shown in Figure 1 to Figure 3, a kind of LNG filling machine pipeline structure, comprise liquified natural gas tank 1, liquid-feeding tube 2 and muffler 3, liquid-feeding tube 2 one end are connected with liquified natural gas tank 1 by liquid entering hole, the other end connects filling gun 5 by liquid feeding flexible pipe 4, muffler 3 one end connect liquified natural gas tank 1 by gas returning port, the other end connects inserts gun platform 6, between liquid-feeding tube 2 and muffler 3, be communicated with by bypass duct 7, and the pneumatic valve V2 that installation is opened and closed by electromagnetic valve in this bypass duct 7, the pneumatic valve V1 that flowmeter FIQ is installed and opened and closed by electromagnetic valve on liquid-feeding tube 2, the first pressure transmitter PT01 is installed on liquid-feeding tube 2, insert on gun platform 6 the second pressure transmitter PT02 is installed.
A kind of control system of described LNG filling machine pipeline structure, comprise control mainboard, control chip and the storage module being connected with control chip and various interface circuit are set on described control mainboard, described interface circuit comprises power interface, the first pressure transmitter interface, the second pressure transmitter interface, flowmeter interface, keyboard input interface, IC card reader interface, display interface, solenoid valve interface, printer interface, wherein:
Power interface, for accessing externally fed power supply, delivers to control mainboard after treatment;
The first pressure transmitter interface, for accessing the first pressure transmitter PT01, Real-time Collection liquid inlet pipe pressure signal also transfers to control chip;
The second pressure transmitter interface, for accessing the second pressure transmitter PT02, Real-time Collection is inserted gun platform mouth pressure signal and is transferred to control chip;
Flowmeter interface, for access flow meter FIQ, Real-time Collection flux signal also transfers to control chip;
Keyboard input interface, for accessing keyboard, inquires about, arranges mainboard parameter, inquiry transaction record;
IC card reader interface, for reading and writing IC card;
Display interface, for connecting display device, shows related data in real time;
Solenoid valve interface, is connected with the solenoid valve of controlling pneumatic valve V1, V2 keying.
When filling machine carries out " major cycle ", by operator, filling gun 5 is inserted in to gun platform mouth, click " precooling " button from keyboard, control chip gathers liquid inlet pipe force value A by the first pressure transmitter PT01, the second pressure transmitter PT02 gathers and inserts gun platform mouth pressure value B, and the difference of comparison A and B, in the time of A-B≤0.14MPa, allow to carry out major cycle operation, forbid liquid feeding simultaneously and preserve major cycle record, pneumatic valve V2 closes, pneumatic valve V1 opens, rock gas in liquified natural gas tank 1 is through liquid-feeding tube 2, muffler 3 is back to liquified natural gas tank 1, precooling pipeline and flowmeter FIQ.In the time of A-B > 0.14MPa, forbid carrying out major cycle operation, allow liquid feeding and record liquid feeding data.
In the time that LNG Liquefied natural gas is stored to other containers pilferage rock gases by pilferage personnel, because filling gun 5 is not inserted in gun platform mouth, must make to insert in gun platform 6 does not have LNG Liquefied natural gas to pass through, what the second pressure transmitter PT02 gathered is atmospheric pressure, make difference between A value and B value exceed the scope of permission, now will forbid major cycle operation.Thereby avoid in prior art, also can normally carry out major cycle operation even if A value and B value difference value are excessive, and then cause LNG Liquefied natural gas by the generation of the situation of stealing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a LNG filling machine pipeline structure, comprise liquified natural gas tank, liquid-feeding tube and muffler, liquid-feeding tube one end is connected with liquified natural gas tank by liquid entering hole, the other end connects filling gun, muffler one end connects liquified natural gas tank by gas returning port, the other end connects inserts gun platform, between liquid-feeding tube and muffler, be communicated with by bypass duct, and the pneumatic valve that installation is opened and closed by electromagnetic valve in this bypass duct, the pneumatic valve of flowmeter being installed on liquid-feeding tube and being opened and closed by electromagnetic valve, is characterized in that: on liquid-feeding tube He on slotting gun platform, pressure transmitter is all installed.
2. the control system of LNG filling machine pipeline structure described in a claim 1, comprise control mainboard, it is characterized in that: control chip and the storage module being connected with control chip and various interface circuit are set on described control mainboard, described interface circuit comprises power interface, the first pressure transmitter interface, the second pressure transmitter interface, flowmeter interface, keyboard input interface, IC card reader interface, display interface, solenoid valve interface, printer interface, wherein:
Power interface, for accessing externally fed power supply, delivers to control mainboard after treatment;
The first pressure transmitter interface, for accessing the first pressure transmitter, Real-time Collection liquid inlet pipe pressure signal also transfers to control chip;
The second pressure transmitter interface, for accessing the second pressure transmitter, Real-time Collection is inserted gun platform mouth pressure signal and is transferred to control chip;
Flowmeter interface, for access flow meter, Real-time Collection flux signal also transfers to control chip;
Keyboard input interface, for accessing keyboard, inquires about, arranges mainboard parameter, inquiry transaction record;
IC card reader interface, for reading and writing IC card;
Display interface, for connecting display device, shows related data in real time;
Solenoid valve interface, is connected with each solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248468.2A CN103982776A (en) | 2014-06-06 | 2014-06-06 | LNG dispenser pipeline structure and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248468.2A CN103982776A (en) | 2014-06-06 | 2014-06-06 | LNG dispenser pipeline structure and control system thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN103982776A true CN103982776A (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410248468.2A Pending CN103982776A (en) | 2014-06-06 | 2014-06-06 | LNG dispenser pipeline structure and control system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613308A (en) * | 2014-12-31 | 2015-05-13 | 杰瑞石油天然气工程有限公司 | Gas dispenser on-line correction system and method based on handheld corrector |
| CN109630870A (en) * | 2017-10-09 | 2019-04-16 | 安瑞科(廊坊)能源装备集成有限公司 | Abnormal pre-cooling recognition methods, device and the LNG dispenser of LNG dispenser |
| CN110953479A (en) * | 2019-12-06 | 2020-04-03 | 重庆耐德能源装备集成有限公司 | Gas filling control system and control method of LNG (liquefied Natural gas) double-gun gas filling machine |
| CN111692516A (en) * | 2020-07-01 | 2020-09-22 | 优普能源技术有限公司 | Intelligent filling control system and control method based on overcurrent protection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053881A (en) * | 2008-08-26 | 2010-03-11 | Tokiko Techno Kk | Liquefied gas filling device |
| CN101774527A (en) * | 2010-01-08 | 2010-07-14 | 张家港富瑞特种装备股份有限公司 | Control system of liquefied natural gas dispenser |
| CN103307444A (en) * | 2013-06-20 | 2013-09-18 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) dispenser with high precision of metering |
| CN203615057U (en) * | 2013-12-03 | 2014-05-28 | 重庆耐德能源装备集成有限公司 | Smart high-precision LNG filling and measuring device |
| CN203868696U (en) * | 2014-06-06 | 2014-10-08 | 成都华气厚普机电设备股份有限公司 | LNG dispenser pipeline structure and control system thereof |
-
2014
- 2014-06-06 CN CN201410248468.2A patent/CN103982776A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053881A (en) * | 2008-08-26 | 2010-03-11 | Tokiko Techno Kk | Liquefied gas filling device |
| CN101774527A (en) * | 2010-01-08 | 2010-07-14 | 张家港富瑞特种装备股份有限公司 | Control system of liquefied natural gas dispenser |
| CN103307444A (en) * | 2013-06-20 | 2013-09-18 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) dispenser with high precision of metering |
| CN203615057U (en) * | 2013-12-03 | 2014-05-28 | 重庆耐德能源装备集成有限公司 | Smart high-precision LNG filling and measuring device |
| CN203868696U (en) * | 2014-06-06 | 2014-10-08 | 成都华气厚普机电设备股份有限公司 | LNG dispenser pipeline structure and control system thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613308A (en) * | 2014-12-31 | 2015-05-13 | 杰瑞石油天然气工程有限公司 | Gas dispenser on-line correction system and method based on handheld corrector |
| CN104613308B (en) * | 2014-12-31 | 2016-06-15 | 杰瑞石油天然气工程有限公司 | A kind of filling machine on-line correction method based on hand-held correcting unit |
| CN109630870A (en) * | 2017-10-09 | 2019-04-16 | 安瑞科(廊坊)能源装备集成有限公司 | Abnormal pre-cooling recognition methods, device and the LNG dispenser of LNG dispenser |
| CN110953479A (en) * | 2019-12-06 | 2020-04-03 | 重庆耐德能源装备集成有限公司 | Gas filling control system and control method of LNG (liquefied Natural gas) double-gun gas filling machine |
| CN110953479B (en) * | 2019-12-06 | 2022-05-10 | 重庆耐德能源装备集成有限公司 | Gas filling control system and control method of LNG (liquefied natural gas) double-gun gas filling machine |
| CN111692516A (en) * | 2020-07-01 | 2020-09-22 | 优普能源技术有限公司 | Intelligent filling control system and control method based on overcurrent protection |
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Application publication date: 20140813 |
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