CN204005207U - A kind of liquefied natural gas filling measuring apparatus - Google Patents
A kind of liquefied natural gas filling measuring apparatus Download PDFInfo
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- CN204005207U CN204005207U CN201420287077.7U CN201420287077U CN204005207U CN 204005207 U CN204005207 U CN 204005207U CN 201420287077 U CN201420287077 U CN 201420287077U CN 204005207 U CN204005207 U CN 204005207U
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- low temperature
- natural gas
- liquefied natural
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- safety check
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Abstract
The utility model discloses a kind of liquefied natural gas filling measuring apparatus, this device comprises liquid phase unit, gas phase unit, pressure release unit and diffuses unit, wherein pressure release unit comprises low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18), between LNG Liquefied natural gas import (21) and storage tank (19), pass through successively low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18) from LNG Liquefied natural gas import (21) to storage tank (19) direction.In this device, pressure release cell layout is before liquid feeding low temperature mass flowmenter, and in the time that low temperature Emergeny Cutoff Valves on pressure release unit is completely not closed, the LNG Liquefied natural gas of process low temperature Emergeny Cutoff Valves, without metering, has been avoided causing economic loss to user.
Description
Technical field
The utility model relates to a kind of liquefied natural gas filling measuring apparatus, for the liquefied natural gas filling metering of mounted gas cylinder, belongs to product structure technical field.
Background technique
LNG Liquefied natural gas, as a kind of novel energy, has the feature of environmental protection, Security and Economy, replaces automotive fuel to become clear day by day.Liquefied natural gas filling measuring apparatus will meet its physical property different functions is set, conventional filling measuring apparatus arranges circulation bypass in low temperature mass flowmenter downstream, liquid phase unit, when by-pass valve does not have completely closed situation, there will be the LNG Liquefied natural gas after metering to return to storage tank, all LNG Liquefied natural gas after metering can not be filled into mounted gas cylinder completely.
Summary of the invention
The utility model designs a kind of liquefied natural gas filling measuring apparatus is provided for the problem existing in above-mentioned existing apparatus just, its objective is in the time that low temperature Emergeny Cutoff Valves on pressure release unit is completely not closed, the LNG Liquefied natural gas of process low temperature Emergeny Cutoff Valves, without metering, has been avoided causing economic loss to user.
The purpose of this utility model is achieved through the following technical solutions:
This kind of liquefied natural gas filling measuring apparatus, this device comprises liquid phase unit, gas phase unit and diffuses unit, wherein:
Liquid phase unit comprises low temperature Emergeny Cutoff Valves (4), low temperature safety check I (5), Low-temperature pressure sensor (6), liquid feeding low temperature mass flowmenter (7) and liquid feeding rifle (8), LNG Liquefied natural gas is by LNG Liquefied natural gas import (21), low temperature Emergeny Cutoff Valves (4), liquid feeding low temperature mass flowmenter (7) is until liquid feeding rifle (8), between low temperature Emergeny Cutoff Valves (4) and liquid feeding low temperature mass flowmenter (7), a Low-temperature pressure sensor (6) is set, low temperature Emergeny Cutoff Valves (4) is in parallel with low temperature safety check I (5), both circulating directions are contrary,
Gas phase unit comprises low temperature safety check II (12), return-air low temperature mass flowmenter (11), low temperature safety check III (13), Low-temperature pressure table (16) and return-air rifle (10), gas phase unit import is divided into two-way, wherein a road port is the liquid feeding gun platform (9) being connected with liquid feeding rifle (8), another road port is return-air rifle (10), liquid feeding gun platform (9) is connected with storage tank (19) by low temperature safety check II (12), return-air rifle (10) is by return-air low temperature mass flowmenter (11), low temperature safety check III (13) is connected with storage tank (19), low temperature safety check II (12) and return-air low temperature mass flowmenter (11), low temperature safety check III (13) parallel connection, Low-temperature pressure table (16) is set between the pipeline after parallel connection and storage tank (19),
Diffuse unit and comprise low-temperature safety valve I (1), cryogenic globe valve I (2), cryogenic globe valve II (14), low-temperature safety valve II (15), cryogenic globe valve III (17), diffuse unit inlet and be divided into two-way, wherein a road pipeline is connected to LNG Liquefied natural gas import (21) and diffuses between pipeline outlet (20), this road pipeline passes through cryogenic globe valve I (2) and low-temperature safety valve I (1) from LNG Liquefied natural gas import (21) successively to diffusing pipeline outlet (20) direction, another kind of pipeline is connected to storage tank (19) and diffuses between pipeline outlet (20), this road pipeline passes through cryogenic globe valve II (14) and low-temperature safety valve II (15) from storage tank (19) successively to diffusing pipeline outlet (20) direction, cryogenic globe valve III (17) is in parallel with cryogenic globe valve II (14) and low-temperature safety valve II (15), both circulating directions are identical,
It is characterized in that: this liquefied natural gas filling measuring apparatus comprises pressure release unit, pressure release unit comprises low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18), between LNG Liquefied natural gas import (21) and storage tank (19), pass through successively low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18) from LNG Liquefied natural gas import (21) to storage tank (19) direction.
The beneficial effects of the utility model are: realize pre-cooling cycle function, and filling function of measuring, pump is prized pipeline pressure release function between filling machine, safe diffusion function, meanwhile, meets the relevant laws and regulations such as measurement Law.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device
In figure: 1. low-temperature safety valve I 2. cryogenic globe valve I 3. low temperature Emergeny Cutoff Valves I 4. low temperature Emergeny Cutoff Valves II 5. low temperature safety check I 6. Low-temperature pressure sensor 7. liquid feeding low temperature mass flowmenter 8. liquid feeding rifle 9 liquid feeding gun platform 10. return-air rifle 11. return-air low temperature mass flowmenter 12. low temperature safety check II 13. low temperature safety check III 14. cryogenic globe valve II 15. low-temperature safety valve II 16. Low-temperature pressure table 17. cryogenic globe valve III 18. low temperature safety check IV 19. storage tank interfaces 20. diffuse pipeline outlet 21. LNG Liquefied natural gas imports.
Embodiment
Below with reference to drawings and Examples, model utility is further described:
Shown in accompanying drawing 1, this kind of liquefied natural gas filling measuring apparatus, this device comprises liquid phase unit, gas phase unit and diffuses unit, wherein:
Liquid phase unit comprises low temperature Emergeny Cutoff Valves 4, low temperature safety check I 5, Low-temperature pressure sensor 6, liquid feeding low temperature mass flowmenter 7 and liquid feeding rifle 8, LNG Liquefied natural gas is passed through LNG Liquefied natural gas import 21, low temperature Emergeny Cutoff Valves 4, liquid feeding low temperature mass flowmenter 7 until liquid feeding rifle 8, between low temperature Emergeny Cutoff Valves 4 and liquid feeding low temperature mass flowmenter 7, a Low-temperature pressure sensor 6 is set, low temperature Emergeny Cutoff Valves 4 is in parallel with low temperature safety check I 5, and both circulating directions are contrary;
Gas phase unit comprises low temperature safety check II 12, return-air low temperature mass flowmenter 11, low temperature safety check III 13, Low-temperature pressure table 16 and return-air rifle 10, gas phase unit import is divided into two-way, wherein a road port is the liquid feeding gun platform 9 being connected with liquid feeding rifle 8, another road port is return-air rifle 10, liquid feeding gun platform 9 is connected with storage tank 19 by low temperature safety check II 12, return-air rifle 10 is by return-air low temperature mass flowmenter 11, low temperature safety check III 13 is connected with storage tank 19, low temperature safety check II 12 and return-air low temperature mass flowmenter 11, 13 parallel connections of low temperature safety check III, between pipeline after parallel connection and storage tank 19, Low-temperature pressure table 16 is set,
Diffuse unit and comprise low-temperature safety valve I 1, cryogenic globe valve I 2, cryogenic globe valve II 14, low-temperature safety valve II 15, cryogenic globe valve III 17, diffuse unit inlet and be divided into two-way, wherein a road pipeline is connected to LNG Liquefied natural gas import 21 and diffuses between pipeline outlet 20, this road pipeline passes through cryogenic globe valve I 2 and low-temperature safety valve I 1 from LNG Liquefied natural gas import 21 successively to diffusing pipeline outlet 20 directions, another kind of pipeline is connected to storage tank 19 and diffuses between pipeline outlet 20, this road pipeline passes through cryogenic globe valve II 14 and low-temperature safety valve II 15 from storage tank 19 successively to diffusing pipeline outlet 20 directions, cryogenic globe valve III 17 is in parallel with cryogenic globe valve II 14 and low-temperature safety valve II 15, both circulating directions are identical,
It is characterized in that: this liquefied natural gas filling measuring apparatus comprises pressure release unit, pressure release unit comprises low temperature Emergeny Cutoff Valves I 3 and low temperature safety check IV 18, between LNG Liquefied natural gas import 21 and storage tank 19, pass through successively low temperature Emergeny Cutoff Valves I 3 and low temperature safety check IV 18 from LNG Liquefied natural gas import 21 to storage tank 19 directions.
The working procedure of the utility model device is:
When pre-cooling cycle, liquid phase unit is connected with gas phase unit with liquid feeding gun platform 9 by liquid feeding rifle 8, simultaneously, close low temperature Emergeny Cutoff Valves I 3, LNG Liquefied natural gas enters gas phase unit by LNG Liquefied natural gas import 21, low temperature Emergeny Cutoff Valves II 4, liquid feeding low temperature mass flowmenter 7 and liquid feeding rifle 8, then returns to storage tank interface 19 by liquid feeding gun platform 9, low temperature safety check II 12 and realizes pre-cooling cycle function;
When liquefied natural gas filling measuring apparatus is annotated metering to mounted gas cylinder, if when mounted gas cylinder overpressure, first, by return-air rifle 10, device is connected with mounted gas cylinder, pressurized gas return to storage tank interface 19 by return-air low temperature mass flowmenter 11 and low temperature safety check III 13, make mounted gas cylinder pressure reach normal value, after disconnecting, by liquid feeding rifle 8, device is connected with mounted gas cylinder again, open low temperature Emergeny Cutoff Valves II 4, LNG Liquefied natural gas is by LNG Liquefied natural gas import 21, low temperature Emergeny Cutoff Valves II 4, liquid feeding low temperature mass flowmenter 7 and liquid feeding rifle 8 enter mounted gas cylinder and realize filled function, if when mounted gas cylinder pressure is normal, by liquid feeding rifle 8, device is connected with mounted gas cylinder, open low temperature Emergeny Cutoff Valves II 4, LNG Liquefied natural gas enters mounted gas cylinder by LNG Liquefied natural gas import 21, low temperature Emergeny Cutoff Valves II 4, liquid feeding low temperature mass flowmenter 7 and liquid feeding rifle 8 and realizes filled function, meanwhile, realize function of measuring by liquid feeding low temperature mass flowmenter 7 and the difference of return-air low temperature mass flowmenter 11,
When liquefied natural gas filling measuring apparatus is in treating working state, low temperature Emergeny Cutoff Valves II 4 is closed, low temperature Emergeny Cutoff Valves I 3 is opened, pump is prized ducted LNG Liquefied natural gas between filling machine and is returned to storage tank interface 19 by low temperature Emergeny Cutoff Valves I 3 and low temperature safety check IV 18, realizes pump and prizes pipeline pressure release function between filling machine;
When liquefied natural gas vaporization pressure in liquid phase unit raises, reach after secure setting, by cryogenic globe valve I 2, low-temperature safety valve I 1 with diffuse pipeline outlet 20, realize the safe diffusion function in liquid phase unit; When liquefied natural gas vaporization pressure in pipeline between low temperature Emergeny Cutoff Valves II 4 and liquid feeding rifle 8 raises, LNG Liquefied natural gas is by after low temperature safety check I 5, then by cryogenic globe valve I 2, low-temperature safety valve I 1 with diffuse pipeline outlet 20 and realize safety and diffuse; When liquefied natural gas vaporization pressure in gas phase unit raises, reach after secure setting, by cryogenic globe valve II 14, low-temperature safety valve II 15 and and diffuse pipeline outlet 20, realize the safe diffusion function of gas phase unit; In the time that needs manually diffuse, can by cryogenic globe valve III 17 and and diffuse pipeline outlet 20, realize manual safety diffusion function;
Liquid phase unit arranges Low-temperature pressure sensor 6, can monitor liquid phase pressure; Gas phase unit arranges Low-temperature pressure table 16, can monitor gaseous pressure.
The utility model device compared with prior art circuit design is simple for structure, and pressure release cell layout is before liquid feeding low temperature mass flowmenter, and liquid feeding low temperature mass flowmenter downstream, without bypass, meets the relevant laws and regulations such as measurement Law.
Claims (1)
1. a liquefied natural gas filling measuring apparatus, this device comprises liquid phase unit, gas phase unit and diffuses unit, wherein:
Liquid phase unit comprises low temperature Emergeny Cutoff Valves (4), low temperature safety check I (5), Low-temperature pressure sensor (6), liquid feeding low temperature mass flowmenter (7) and liquid feeding rifle (8), LNG Liquefied natural gas is by LNG Liquefied natural gas import (21), low temperature Emergeny Cutoff Valves (4), liquid feeding low temperature mass flowmenter (7) is until liquid feeding rifle (8), between low temperature Emergeny Cutoff Valves (4) and liquid feeding low temperature mass flowmenter (7), a Low-temperature pressure sensor (6) is set, low temperature Emergeny Cutoff Valves (4) is in parallel with low temperature safety check I (5), both circulating directions are contrary,
Gas phase unit comprises low temperature safety check II (12), return-air low temperature mass flowmenter (11), low temperature safety check III (13), Low-temperature pressure table (16) and return-air rifle (10), gas phase unit import is divided into two-way, wherein a road port is the liquid feeding gun platform (9) being connected with liquid feeding rifle (8), another road port is return-air rifle (10), liquid feeding gun platform (9) is connected with storage tank (19) by low temperature safety check II (12), return-air rifle (10) is by return-air low temperature mass flowmenter (11), low temperature safety check III (13) is connected with storage tank (19), low temperature safety check II (12) and return-air low temperature mass flowmenter (11), low temperature safety check III (13) parallel connection, Low-temperature pressure table (16) is set between the pipeline after parallel connection and storage tank (19),
Diffuse unit and comprise low-temperature safety valve I (1), cryogenic globe valve I (2), cryogenic globe valve II (14), low-temperature safety valve II (15), cryogenic globe valve III (17), diffuse unit inlet and be divided into two-way, wherein a road pipeline is connected to LNG Liquefied natural gas import (21) and diffuses between pipeline outlet (20), this road pipeline passes through cryogenic globe valve I (2) and low-temperature safety valve I (1) from LNG Liquefied natural gas import (21) successively to diffusing pipeline outlet (20) direction, another kind of pipeline is connected to storage tank (19) and diffuses between pipeline outlet (20), this road pipeline passes through cryogenic globe valve II (14) and low-temperature safety valve II (15) from storage tank (19) successively to diffusing pipeline outlet (20) direction, cryogenic globe valve III (17) is in parallel with cryogenic globe valve II (14) and low-temperature safety valve II (15), both circulating directions are identical,
It is characterized in that: this liquefied natural gas filling measuring apparatus comprises pressure release unit, pressure release unit comprises low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18), between LNG Liquefied natural gas import (21) and storage tank (19), pass through successively low temperature Emergeny Cutoff Valves I (3) and low temperature safety check IV (18) from LNG Liquefied natural gas import (21) to storage tank (19) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287077.7U CN204005207U (en) | 2014-05-30 | 2014-05-30 | A kind of liquefied natural gas filling measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287077.7U CN204005207U (en) | 2014-05-30 | 2014-05-30 | A kind of liquefied natural gas filling measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005207U true CN204005207U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287077.7U Expired - Fee Related CN204005207U (en) | 2014-05-30 | 2014-05-30 | A kind of liquefied natural gas filling measuring apparatus |
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| CN (1) | CN204005207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806885A (en) * | 2015-05-25 | 2015-07-29 | 新疆金康达能源设备有限公司 | Automatic control system of liquid feeder |
| CN106051453A (en) * | 2016-07-26 | 2016-10-26 | 郑州朗润智能装备股份有限公司 | Splashing preventing device of liquefied natural gas (LNG) filling machine |
-
2014
- 2014-05-30 CN CN201420287077.7U patent/CN204005207U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806885A (en) * | 2015-05-25 | 2015-07-29 | 新疆金康达能源设备有限公司 | Automatic control system of liquid feeder |
| CN104806885B (en) * | 2015-05-25 | 2018-05-18 | 新疆金康达能源设备有限公司 | A kind of liquid filler automatic control system |
| CN106051453A (en) * | 2016-07-26 | 2016-10-26 | 郑州朗润智能装备股份有限公司 | Splashing preventing device of liquefied natural gas (LNG) filling machine |
| CN106051453B (en) * | 2016-07-26 | 2019-04-26 | 郑州朗润智能装备股份有限公司 | A kind of liquefied natural gas filling machine anti-splash device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170530 |