CN102606875A - Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same - Google Patents
Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same Download PDFInfo
- Publication number
- CN102606875A CN102606875A CN201210104485XA CN201210104485A CN102606875A CN 102606875 A CN102606875 A CN 102606875A CN 201210104485X A CN201210104485X A CN 201210104485XA CN 201210104485 A CN201210104485 A CN 201210104485A CN 102606875 A CN102606875 A CN 102606875A
- Authority
- CN
- China
- Prior art keywords
- lng
- control unit
- filling
- emergent
- filling machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses emergency LNG (Liquefied Natural Gas) filling equipment and a method for emergently filling by using the same. The emergency LNG filling equipment comprises an immersed pump and a plurality of LNG gas dispensers; the emergency LNG filling equipment further comprises a master station control system, a gas dispenser state collecting unit and a frequency conversion control unit, which are connected in sequence in a communication manner; the plurality of the LNG gas dispensers are respectively connected with the gas dispenser state collecting unit in the communication manner; one end of the frequency conversion control unit is connected with the immersed pump in the communication manner and the other end of the frequency conversion control unit is connected with a slave station control unit in the communication manner; and one end of the slave station control unit is further connected with a sensor set, a pneumatic valve set, a valve position feedback device respectively in the communication manner. According to the emergency LNG filling equipment and the method for emergently filling by using the same, the equipment is integrated in a vehicle-mounted manner, is convenient to move and can fill the gas when a vehicle arrives; and manual frequency conversion control is not needed and a corresponding automatic control measure can be carried out through automatic judgment, so as to effectively cope with some emergency conditions in time.
Description
Technical field
The present invention relates to automobile fuel gas loading technique field, relate in particular to a kind of equipment of LNG Liquefied natural gas (LNG:Liquefied Natural Gas) car emergency filling and method of emergent filling thereof of mainly applying to.
Background technique
LNG is as a kind of pure clean energy resource, use very extensive, during especially as the fuel of motor car engine; Its calorific value is high, pollution is little; Having economy, safety, environmental protection, motor-driven advantage, is the developing direction of gas-fueled vehicles, also is the desirable approach of urban size development gas-fueled vehicles.Test data shows: bus is tried out LNG fuel, and the tail gas comprehensive discharge is compared with combustion gas can descend 80%.According to statistics, urban air pollution 60% is from vehicle exhaust, and development LNG automobile, construction LNG Vehicle Fueling Station are to administer motor vehicle to pollute, and improve effective behave of atmosphere quality.
LNG skid Vehicle Fueling Station be with LNG low-temperature storage tank, filling device, immersed pump, the pressurized machine of unloading, storage tank pressurized machine, pipeline, and equipment such as control valve install concentratedly on a prying body in manufactory; It has highly integrated, simple installation, maneuverability, safe and reliable, and characteristics such as easy to operate, is mainly used in the popularization of LNG refueling project.
Because LNG is a kind of low temperature and the special liquid that is prone to gasification, requiring to add the automobile steel cylinder must be pure LNG liquid, forms certain gas-liquid saturation ratio, so this has just proposed the more control preciseness of strict requirement to The whole control system.Yet; When in the existing technology LNG automobile being annotated; Need the artificial control of participating in, have human operational error's potential safety hazard, and when the scene runs into some urgencies; Existing LNG skid Vehicle Fueling Station emergency processing ability shortcoming can't be made corresponding control measure automatically timely and effectively.Moreover, also exist cabling loaded down with trivial details in traditional LNG skid Vehicle Fueling Station design, maintenance and maintenance be the drawback of difficulty comparatively.
Summary of the invention
A purpose of the present invention is, a kind of emergent LNG filing provision is provided, and it need not artificially to participate in VFC, makes corresponding control measure automatically through automatic judgement, can tackle some urgencies timely and effectively;
Another object of the present invention is to, a kind of method of utilizing emergent LNG filing provision meet an urgent need and to annotate is provided, it can in emergency circumstances realize function that the LNG automobile is promptly annotated at some, has reduced the harmfulness of artificial participation.
For realizing above-mentioned purpose; The present invention provides a kind of emergent LNG filing provision; Comprise: immersed pump, and several LNG filling machines; It also comprises successively main website control system that communication connects, filling machine state acquisition unit, and frequency conversion control unit, and said several LNG filling machines are connected with filling machine state acquisition unit communication respectively, and frequency conversion control unit one end is communicated by letter with immersed pump and is connected; The other end is communicated by letter with a slave station control unit and is connected, this slave station control unit one end also respectively with a sensor groups, pneumatic valve group, and valve position feedback device group communication be connected.
Wherein, said immersed pump is connected with a LNG tank car and LNG storage tank respectively, and this LNG tank car is connected with one first pressurized machine, and the LNG storage tank is connected with one second pressurized machine.
Further, the said LNG storage tank the other end also is connected with an EAG heater in turn, reaches a concentrated bleeding device.
Among the present invention, said immersed pump is communicated by letter with several LNG filling machines through frequency conversion control unit and filling machine state acquisition unit successively and is connected, and these several LNG filling machine the other ends also are connected with the LNG storage tank respectively.
Said immersed pump is communicated by letter with sensor groups through frequency conversion control unit and slave station control unit successively and is connected, and includes pressure transducer, temperature transducer in this sensor groups, reaches liquid level sensor.
Further, include several pneumatic valves in the said pneumatic valve group, include several valve position feedback devices in the valve position feedback device group.
Can be connected through the PROFIBUS bus communication between main website of the present invention control system and the filling machine state acquisition unit; Can be connected through the RS485 bus communication between several LNG filling machines and the filling machine state acquisition unit, can be connected through the PROFIBUS bus communication between frequency conversion control unit and the slave station control unit.
Among the present invention; Said filling machine state acquisition unit is gathered the state of LNG filling machine in real time; The main website control system is according to the state of LNG filling machine, raises automatically or reduces the rotating speed of immersed pump, and the state of this LNG filling machine comprises state of dormancy, precooling state, holding state, and filling state.
Further, the present invention also provides a kind of method of utilizing emergent LNG filing provision to meet an urgent need and annotate, and it comprises the steps:
The flow process of unloading: the LNG in shipping container or the LNG tank car is unloaded to the LNG storage tank of emergent LNG filing provision, make LNG get into the LNG storage tank through immersed pump;
Pressure regulation flow process: utilize pressurized machine that the LNG in the LNG storage tank is boosted, obtain the saturated liquids that pressure is 0.45～0.80Mpa;
The aerating flow process: the LNG saturated liquids in the LNG storage tank promotes inlet hydraulic through immersed pump and is transferred to the LNG filling machine of rear end, is automobile and vehicle-mounted air cylinder liquid feeding through the LNG filling machine then.
Wherein, in the flow process of unloading, adopting pressurized machine and immersed pump to unite unloads.
Emergent LNG filing provision of the present invention and the method for utilizing it to meet an urgent need and annotate; Its maneuverability need not artificially to participate in VFC, makes corresponding control measure automatically through automatic judgement; Can tackle some urgencies timely and effectively; Realize under the on-the-spot case of emergency LNG automobile being carried out on-the-spot function of annotating, truly realize feeding back automatically, automatically perform, reach automatically and judge, reduced the harmfulness of artificially participating in the non-safety zone; Simultaneously, it is loaded down with trivial details that it has reduced the cabling in the traditional design, more convenient later maintenance and maintenance.
Description of drawings
Fig. 1 is the modular structure schematic representation of the emergent a kind of specific embodiment of LNG filing provision of the present invention;
Fig. 2 is the structural representation of emergent LNG filing provision of the present invention when concrete the application;
Fig. 3 method flow schematic representation that emergent LNG filing provision is met an urgent need and annotated for the present invention utilizes.
Embodiment
As shown in Figure 1; The present invention provides a kind of emergent LNG filing provision; It comprises immersed pump 10, reaches several LNG filling machines 20; It also comprises successively main website control system 1 that communication connects, filling machine state acquisition unit 2, and frequency conversion control unit 3, and said several LNG filling machines 20 are connected with 2 communications of filling machine state acquisition unit respectively, and frequency conversion control unit 3 one ends are communicated by letter with immersed pump 10 and are connected; The other end is connected with a slave station control unit 4 communication, these slave station control unit 4 one ends also respectively with a sensor groups 5, pneumatic valve group 6, and valve position feedback device group 7 communicate by letter and be connected.The main website control system 1 of the present invention's integrated Automatic Control on sled; Control and pipeline realize that safety isolates, and it adopts explosion-proof isolation to manage safe cabling with explosion-proof around shape, and the employing guard grating carries out Signal Spacing; After all outputs focus on through inside with input signal; Communicate by letter separately with main website control system 1 through a bus, it is loaded down with trivial details to have reduced the cabling in the traditional design, more convenient later maintenance and maintenance.
As shown in Figure 2, when concrete the use, said immersed pump 10 is connected with a LNG tank car 30 and LNG storage tank 40 respectively, and said LNG tank car 30 is connected with one first pressurized machine 32, and LNG storage tank 40 is connected with one second pressurized machine 42.Said LNG storage tank 40 the other ends also are connected with in turn and one diffuse vent gas (EAG) heater 44, and one concentrate bleeding device 46.The present invention can be 40 superchargings of LNG storage tank through second pressurized machine 42 that carries when immersed pump breaks down can not work the time, makes to reach bigger pressure reduction between LNG storage tank 40 and the automobile steel cylinder, annotates from supercharging through the pressure reduction realization then.
Among the present invention, said immersed pump 10 is connected with 20 communications of several LNG filling machines through frequency conversion control unit 3 and filling machine state acquisition unit 2 successively, and these several LNG filling machine 20 the other ends also are connected with LNG storage tank 40 respectively.Further, said immersed pump 10 is connected with sensor groups 5 communications through frequency conversion control unit 3 and slave station control unit 4 successively, includes pressure transducer 52, temperature transducer 54 in this sensor groups 5, reaches liquid level sensor 56.The mode of the present invention through adopting sensor groups 5 to combine with logic control; And each sensor in the sensor groups 5 has Presentation Function on the spot; Not only just can also remote transmission give main website control system 1, and the data of gathering participated in internal processes judge at the scene through the artificial real time data of gathering of observing; Main website control system 1 is made corresponding control measure automatically through judging automatically.
Further, include several pneumatic valves 62 in the said pneumatic valve group 6, include several valve position feedback devices 72 in the valve position feedback device group 7.The present invention has taken into full account the Security of automatic control and piping design; Through the crucial path of several pneumatic valve 62 each pipelines of control; And on several pneumatic valves 62, embed valve position feedback device 72, when opening pneumatic valve 62, can also judge whether the valve opening virtual condition (is really opened through valve position feedback device 72 through control system; Whether close fully, or open or close whether fully).Pipeline for key builds the pressure easily carries out sensor through sensor groups 5, and when detected pressures was higher than the artificial setting value of system, main website control system 1 can be opened pneumatic valve 62 certainly and carry out release, need not the people for judging; When pressure was lower than setting value, main website control system 1 can be closed pressure-relief valve automatically, reached truly automatic feedback, automatically performed, and judges that automatically this has reduced the danger of artificial participation for very necessary in the non-safety zone.
Can be connected through Process FieldbusROFIBUS (PROFIBUS) bus communication between main website of the present invention control system 1 and the filling machine state acquisition unit 2; Can be connected through the RS485 bus communication between several LNG filling machines 20 and the filling machine state acquisition unit 2, can be connected through the PROFIBUS bus communication between frequency conversion control unit 3 and the slave station control unit 4.The present invention carries out VFC through frequency conversion control technique to immersed pump 10, and according to different filling states, system can run on different frequencies automatically.During work; Said filling machine state acquisition unit 2 is gathered the state (state of dormancy, precooling state, holding state, and filling state) of LNG filling machines 20 in real time; Main website control system 1 is according to the state of LNG filling machine 20; Automatically the rotating speed of rising or reduction immersed pump reaches the automatic control in different flow processs, need not artificially to participate in VFC.
Further, as shown in Figure 3, the present invention also provides a kind of method of utilizing emergent LNG filing provision to meet an urgent need and annotate, and it comprises the steps:
In sum, the emergent LNG filing provision of the present invention and utilize its method of meet an urgent need and annotating, its maneuverability; Need not artificially to participate in VFC; Make corresponding control measure automatically through automatic judgement, can tackle some urgencies timely and effectively, realize under the on-the-spot case of emergency LNG automobile being carried out on-the-spot function of annotating; Truly realize feeding back automatically, automatically perform, reach automatically and judge, reduced artificial harmfulness of participating in the non-safety zone; Simultaneously, it is loaded down with trivial details that it has reduced the cabling in the traditional design, more convenient later maintenance and maintenance.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to technological scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (10)
1. emergent LNG filing provision; Comprise immersed pump, reach several LNG filling machines; It is characterized in that; Also comprising successively main website control system that communication connects, filling machine state acquisition unit, and frequency conversion control unit, said several LNG filling machines are connected with filling machine state acquisition unit communication respectively, and frequency conversion control unit one end is communicated by letter with immersed pump and is connected; The other end is communicated by letter with a slave station control unit and is connected, this slave station control unit one end also respectively with a sensor groups, pneumatic valve group, and valve position feedback device group communication be connected.
2. emergent LNG filing provision as claimed in claim 1 is characterized in that: said immersed pump is connected with a LNG tank car and LNG storage tank respectively, and this LNG tank car is connected with one first pressurized machine, and the LNG storage tank is connected with one second pressurized machine.
3. emergent LNG filing provision as claimed in claim 2 is characterized in that: the said LNG storage tank the other end also is connected with an EAG heater in turn, reaches a concentrated bleeding device.
4. emergent LNG filing provision as claimed in claim 1; It is characterized in that: said immersed pump is communicated by letter with several LNG filling machines through frequency conversion control unit and filling machine state acquisition unit successively and is connected, and these several LNG filling machine the other ends also are connected with the LNG storage tank respectively.
5. emergent LNG filing provision as claimed in claim 4; It is characterized in that: said immersed pump is communicated by letter with sensor groups through frequency conversion control unit and slave station control unit successively and is connected, and includes pressure transducer, temperature transducer in this sensor groups, reaches liquid level sensor.
6. emergent LNG filing provision as claimed in claim 1 is characterized in that: include several pneumatic valves in the said pneumatic valve group, include several valve position feedback devices in the valve position feedback device group.
7. emergent LNG filing provision as claimed in claim 1; It is characterized in that: be connected through the PROFIBUS bus communication between said main website control system and the filling machine state acquisition unit; Be connected through the RS485 bus communication between several LNG filling machines and the filling machine state acquisition unit, be connected through the PROFIBUS bus communication between frequency conversion control unit and the slave station control unit.
8. emergent LNG filing provision as claimed in claim 7; It is characterized in that: said filling machine state acquisition unit is gathered the state of LNG filling machine in real time; The main website control system is according to the state of LNG filling machine; The automatic rotating speed that raises or reduce immersed pump, the state of this LNG filling machine comprise state of dormancy, precooling state, holding state, reach the filling state.
9. the method that emergent LNG filing provision meet an urgent need and is annotated described in utilization such as the claim 1 is characterized in that, comprises the steps:
The flow process of unloading: the LNG in shipping container or the LNG tank car is unloaded to the LNG storage tank of emergent LNG filing provision, make LNG get into the LNG storage tank through immersed pump;
Pressure regulation flow process: utilize pressurized machine that the LNG in the LNG storage tank is boosted, obtain the saturated liquids that pressure is 0.45～0.80Mpa;
The aerating flow process: the LNG saturated liquids in the LNG storage tank promotes inlet hydraulic through immersed pump and is transferred to the LNG filling machine of rear end, is automobile and vehicle-mounted air cylinder liquid feeding through the LNG filling machine then.
10. the method that the emergent LNG filing provision of utilization as claimed in claim 9 is met an urgent need and annotated is characterized in that: adopt pressurized machine and immersed pump to unite in the flow process of unloading and unload.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104485XA CN102606875A (en) | 2012-04-11 | 2012-04-11 | Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104485XA CN102606875A (en) | 2012-04-11 | 2012-04-11 | Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606875A true CN102606875A (en) | 2012-07-25 |
Family
ID=46524510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210104485XA Pending CN102606875A (en) | 2012-04-11 | 2012-04-11 | Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606875A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989949A (en) * | 2015-08-06 | 2015-10-21 | 上海雷尼威尔技术有限公司 | LNG leakage monitoring method, system and device |
| CN105179936A (en) * | 2015-08-26 | 2015-12-23 | 上海雷尼威尔技术有限公司 | Canning protection method |
| CN108980602A (en) * | 2018-08-24 | 2018-12-11 | 杰瑞石油天然气工程有限公司 | A kind of gasification station with immersed pump |
| CN111473246A (en) * | 2020-04-02 | 2020-07-31 | 新兴能源装备股份有限公司 | control method of overwater L NG wharf boat gas station |
| CN112013269A (en) * | 2019-05-29 | 2020-12-01 | 圆益半导体材料有限公司 | Ammonia storage tank container and gaseous ammonia supply method using same |
| CN113531386A (en) * | 2021-08-25 | 2021-10-22 | 西南石油大学 | Vehicle-mounted collection system and method for vented natural gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520128A (en) * | 2009-03-24 | 2009-09-02 | 罗东晓 | Movable type method and device for supplying liquid phase natural gas and gas phase natural gas |
| US20090320781A1 (en) * | 2008-06-26 | 2009-12-31 | Hyundai Motor Company | Lng fuel supply system |
| CN201391742Y (en) * | 2009-04-14 | 2010-01-27 | 海南海然高新能源有限公司 | Energy-saving slid-mounted liquefied natural gas filling device |
-
2012
- 2012-04-11 CN CN201210104485XA patent/CN102606875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090320781A1 (en) * | 2008-06-26 | 2009-12-31 | Hyundai Motor Company | Lng fuel supply system |
| CN101520128A (en) * | 2009-03-24 | 2009-09-02 | 罗东晓 | Movable type method and device for supplying liquid phase natural gas and gas phase natural gas |
| CN201391742Y (en) * | 2009-04-14 | 2010-01-27 | 海南海然高新能源有限公司 | Energy-saving slid-mounted liquefied natural gas filling device |
Non-Patent Citations (2)
| Title |
|---|
| 王霞 等: "LNG汽车加气站工艺流程", 《煤气与热力》 * |
| 陈叔平等: "撬装式LNG汽车加气站结构设计", 《低温与超导》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989949A (en) * | 2015-08-06 | 2015-10-21 | 上海雷尼威尔技术有限公司 | LNG leakage monitoring method, system and device |
| CN104989949B (en) * | 2015-08-06 | 2017-06-06 | 上海雷尼威尔技术有限公司 | A kind of LNG leakage monitorings method system and device |
| CN105179936A (en) * | 2015-08-26 | 2015-12-23 | 上海雷尼威尔技术有限公司 | Canning protection method |
| CN108980602A (en) * | 2018-08-24 | 2018-12-11 | 杰瑞石油天然气工程有限公司 | A kind of gasification station with immersed pump |
| CN112013269A (en) * | 2019-05-29 | 2020-12-01 | 圆益半导体材料有限公司 | Ammonia storage tank container and gaseous ammonia supply method using same |
| CN111473246A (en) * | 2020-04-02 | 2020-07-31 | 新兴能源装备股份有限公司 | control method of overwater L NG wharf boat gas station |
| CN113531386A (en) * | 2021-08-25 | 2021-10-22 | 西南石油大学 | Vehicle-mounted collection system and method for vented natural gas |
| CN113531386B (en) * | 2021-08-25 | 2022-10-11 | 西南石油大学 | Vehicle-mounted collection system and method for vented natural gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102606875A (en) | Emergency LNG (Liquefied Natural Gas) filling equipment and method for emergently filling by using same | |
| CN100558586C (en) | Hydraulic natural gas automobile secondary gas filling station | |
| CN201236688Y (en) | Carbon dioxide booster pump injection vehicle | |
| CN104976504A (en) | Real-time hydrogen and natural gas mixed filling method and equipment | |
| CN203656565U (en) | Pump-free LNG (Liquefied Natural Gas) filling system | |
| CN102635782B (en) | Emergency L-CNG (liquefied-compressed nature gas) filling skid | |
| CN103178277A (en) | Full-automatic gas displacement system and method | |
| CN203715255U (en) | Multi-power source brake fluid filling equipment | |
| CN205331788U (en) | LNG filling station storage tank system with built -in immersed pump | |
| CN202867159U (en) | Intelligent refueling pump system used for transporting diesel | |
| CN101975101A (en) | SCR urea system for non-deflation emptying pipeline of pneumatic single-urea box | |
| CN204126742U (en) | A kind of combustion gas double fuel electric controller with gas leakage warning function | |
| CN204077651U (en) | Be applied to the exhaust gear of hydraulic braking system for automobile | |
| CN201159693Y (en) | Hydrogen surroundings fatigue test system of hydrogen storage container | |
| CN201907502U (en) | Brake oil pipe exhaust device | |
| CN204372529U (en) | A kind of LNG Liquefied natural gas immersed pump sled liquid-adding device | |
| CN101327782A (en) | CNG air entraining substation system and air entraining method thereof | |
| CN201858014U (en) | Selective catalytic reduction (SCR) urea liquid supplying and spraying system of non-deflation emptying pipeline of single urea box | |
| CN204324860U (en) | One, two, three petroleum vapor recovery integrated treatment unit of petrol service station | |
| CN101979131A (en) | Pneumatic dual-urea tank urea one-way valve control water heating silicon controlled rectifier (SCR) urea system | |
| CN201206523Y (en) | Hydraulic energy accumulation starter motor device | |
| CN104295892B (en) | CO2Fluid reservoir supercharge control system | |
| CN108758332B (en) | LNG device of unloading | |
| CN108799829B (en) | LNG gasification equipment | |
| CN203423031U (en) | On-line intelligent oil supplementation vehicle for transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 401329 Chongqing Jiulongpo Baishiyi town Hailong Village 8 Applicant after: Chongqing Juchuang Metering Equipment Co.,Ltd. Address before: 401120, No. 9, Yubei District Airport Industrial Park, Chongqing Applicant before: Chongqing Juchuang Metering Equipment Co.,Ltd. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120725 |