CN205824597U - A kind of liquefied natural gas liquid-adding device - Google Patents
A kind of liquefied natural gas liquid-adding device Download PDFInfo
- Publication number
- CN205824597U CN205824597U CN201620664541.9U CN201620664541U CN205824597U CN 205824597 U CN205824597 U CN 205824597U CN 201620664541 U CN201620664541 U CN 201620664541U CN 205824597 U CN205824597 U CN 205824597U
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- CN
- China
- Prior art keywords
- liquid
- quick action
- action emergency
- valve
- emergency valve
- 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.)
- Expired - Fee Related
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 94
- 230000009471 action Effects 0.000 claims abstract description 52
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 238000002309 gasification Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 22
- 239000003345 natural gas Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
This utility model relates to liquefied natural gas liquid-adding device field, this utility model specifically includes low-temperature storage tank, goes out liquid vacuum pipe, time liquid vacuum pipe, filling gun interface, go out liquid vacuum pipe and be arranged on the liquid outlet mouth of low-temperature storage tank, return liquid vacuum pipe and be arranged on the liquid returning end mouth of low-temperature storage tank.Liquid quick action emergency valve is installed back on liquid vacuum pipe going out, liquid quick action emergency valve is installed back on liquid vacuum pipe returning, described going out is sequentially connected with cryopump and effusion meter between liquid quick action emergency valve and time liquid quick action emergency valve, the exit of effusion meter is provided with temperature detection transmitter, pressure detection transducer and Safety relief valve, Safety relief valve is connected with pipeline through low temperature hands valve, filling quick action emergency valve is set between effusion meter and time liquid quick action emergency valve, after filling gun interface is arranged on filling quick action emergency valve.This utility model simple in construction, precooling speed is fast, and rate of gasification is low, diffuses without high pressure, easy to operate.
Description
Technical field
This utility model relates to liquefied natural gas liquid-adding device field.
Background technology
Liquefied natural gas (LNG) is a kind of Hydrocarbon.Commonly called natural gas refers to be stored in the flammable of stratum
Property gas, same to coal, oil equally belong to Fossil fuel together.Being mainly composed of methane, the product after burning is mainly carbon dioxide
And water.After natural gas purification processing (removing heavy hydrocarbon, sulfide, carbon dioxide and water etc.), deep cooling is taken the photograph to subzero 162 at ambient pressure
Family name's degree, is converted into liquid by gaseous state, referred to as liquefied natural gas, referred to as LNG.Natural gas obtains in liquefaction process further only
Change, purity height, not carbonated, sulfide, colourless, tasteless, nontoxic and non-corrosiveness.The volume of liquefied natural gas is about same
Amount gaseous natural gas volume 1/600, weight is only about the 45% of same volume hydrops, greatly facilitate natural gas storage and
Transport.
Liquefied natural gas is as the vehicle fuel of high-quality, and compared with gasoline, it is high that it has octane number, and the capability of antidetonance is good, send out
The advantages such as motivation life-span length, low, the good environmental protection of fuel cost.Gasoline automobile tail hydrocarbon in gas can be reduced by it
72%, oxynitride reduces by 39% carbon monoxide and reduces 90%, and sulfide, lead will be zero.
Liquefied natural gas is calorific value height, flameholding, the high-grade energy of clean environmental protection, can be as city bus, heavy truck, work
The alternative fuel of journey machinery, and low price, pollution-free.Liquefied natural gas has obtained in the whole nation more and more should
With.
The filing provision making pipeline of application at present is many, and pre-cold flow is complicated, and liquefied natural gas gasifying rate is high, and pressure height needs
Sky diffused, therefore to there is the waste of a large amount of gaseous natural gas, the problems such as energy utilization rate is low, operation is complicated.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, and precooling speed is fast, diffuses without high-pressure gasified, and energy consumption utilizes
Rate is high, easy to operate liquefied natural gas liquid-adding device.
To achieve these goals, the technological means that this utility model is taked is:
A kind of liquefied natural gas liquid-adding device, including low-temperature storage tank, goes out liquid vacuum pipe, time liquid vacuum pipe, filling gun
Interface, goes out liquid vacuum pipe and is arranged on the liquid outlet mouth of low-temperature storage tank, returns liquid vacuum pipe and is arranged on the liquid returning end of low-temperature storage tank
Mouthful.Described liquid-adding device also includes liquid quick action emergency valve, returns liquid quick action emergency valve and filling quick action emergency valve, returns liquid urgent
Stop valve is arranged on out on liquid vacuum pipe, returns liquid quick action emergency valve and is arranged on back on liquid vacuum pipe, and described to go out liquid urgent
Being sequentially connected with cryopump and effusion meter between stop valve and time liquid quick action emergency valve, the exit of effusion meter is provided with temperature detection
Transmitter, pressure detection transducer and Safety relief valve, Safety relief valve is connected with pipeline through low temperature hands valve, described filling
Quick action emergency valve is arranged on effusion meter and returns between liquid quick action emergency valve, filling gun interface be arranged on filling quick action emergency valve it
After.
Described a kind of liquefied natural gas liquid-adding device includes filling loop, and filling loop is by going out liquid quick action emergency valve, low
Temperature pump, effusion meter, filling quick action emergency valve and filling gun interface are connected composition by pipeline.
Described a kind of liquefied natural gas liquid-adding device includes pre-cooling and goes back to liquid loop, and pre-cooling and time liquid loop are tight by going out liquid
Anxious stop valve, cryopump effusion meter are connected composition by pipeline with returning liquid quick action emergency valve.
Described a kind of liquefied natural gas liquid-adding device includes that safe measuring controls loop, and safe measuring controls back route flow
Gauge, temperature detection transmitter and Safety relief valve are connected composition by pipeline.
The beneficial effects of the utility model are: by going out liquid vacuum pipe and returning liquid vacuum pipe by cryopump, effusion meter
Couple together with filling gun interface, the setting flow of effusion meter, pressure detection transducer detection pressure, temperature detection transmitter
Detection temperature, the detection signal of effusion meter, pressure detection transducer and temperature detection transmitter controls the break-make of quick action emergency valve,
Realize pre-cooling and filled function.When filling completes or inside low-temperature storage tank because temperature rises system pressure after liquified natural gas gasifies
During rising, the cold liquid in low-temperature storage tank, will the sky of gasification by going out liquid vacuum pipe and going out liquid quick action emergency valve and flow through cryopump
So gas liquefies again, reduces the pressure of system, is reduced the internal pressure of low-temperature storage tank by circulating cooling, reduces rate of gasification,
The security performance of increase equipment.This utility model simple in construction, precooling speed is fast, and rate of gasification is low, diffuses without high pressure, operation side
Just.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, low-temperature storage tank, 2, go out liquid vacuum pipe, 3, cryopump, 4, filling gun interface, 5, go out liquid emergency cut-off
Valve, 6, return liquid quick action emergency valve, 7, filling quick action emergency valve, 8, effusion meter, 9, temperature detection transmitter, 10, pressure detecting becomes
Send device, 11, return liquid vacuum pipe, 12 diffuse safely net, and 13, low temperature hand-operated valve.
Detailed description of the invention
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings.
Specific embodiment, as it is shown in figure 1, a kind of liquefied natural gas liquid-adding device, including low-temperature storage tank 1, goes out liquid vacuum tube
Road 2, time liquid vacuum pipe 11, filling gun interface 4, go out liquid vacuum pipe 2 and be arranged on the liquid outlet mouth of low-temperature storage tank 1, returns liquid true
Vacant duct 11 is arranged on the liquid returning end mouth of low-temperature storage tank 1, and described liquid-adding device also includes that liquid quick action emergency valve 5, time liquid are tight
Anxious stop valve 6 and filling quick action emergency valve 7, return liquid quick action emergency valve 5 and be arranged on out on liquid vacuum pipe 2, return liquid emergency cut-off
Valve 6 is arranged on back on liquid vacuum pipe 11, and described going out is sequentially connected with between liquid quick action emergency valve 5 and time liquid quick action emergency valve 6
Cryopump 3 and effusion meter 8, the exit of effusion meter 8 is provided with temperature detection transmitter 9, pressure detection transducer 10 and safety
Diffusion valve 12, Safety relief valve 12 is connected with pipeline through low temperature hands valve 13, and described filling quick action emergency valve 7 is arranged on flow
Between meter 8 and time liquid quick action emergency valve 6, after filling gun interface 4 is arranged on filling quick action emergency valve 7.So make this practicality
New structure is simple, easy to operate.
Described a kind of liquefied natural gas liquid-adding device includes filling loop, and filling loop is by going out liquid quick action emergency valve 5, low
Temperature pump 3, effusion meter 8, filling quick action emergency valve 7 and filling gun interface 4 are connected composition by pipeline.Fill simple to operate, effect
Rate is high.
Described a kind of liquefied natural gas liquid-adding device includes pre-cooling and goes back to liquid loop, and pre-cooling and time liquid loop are tight by going out liquid
Anxious stop valve 5, cryopump 3 effusion meter 8 are connected composition by pipeline with returning liquid quick action emergency valve 6.Precooling speed is fast, and raising adds
Note efficiency.
Described a kind of liquefied natural gas liquid-adding device includes that safe measuring controls loop, and safe measuring controls back route flow
Gauge 8, temperature detection transmitter 10 and Safety relief valve 13 are connected composition by pipeline.Safe measuring controls loop to equipment
Play a protective role.
Operation principle of the present utility model:
1, precooling process: be first turned on back liquid quick action emergency valve 6, the most slowly opens out liquid quick action emergency valve 5, and liquefy sky
So gas is along going out by cryopump 3 and effusion meter 8 after liquid vacuum tube 2 flows through liquid quick action emergency valve 5, and the natural gas after gasification returns
To low-temperature storage tank 1, arrive certain temperature and complete pre-cooling work.
2, filling process: after pre-cooling completes, starts cryopump 3, closes back liquid tight while opening filling quick action emergency valve 7
Anxious stop valve 6, equipment is filled by liquefied natural gas by filling quick action emergency valve 7 and filling gun interface 4.Through effusion meter
The metering of 8 and the effect of pressure detection transducer 10, open back liquid quick action emergency valve 6 and close filling promptly when liquid feeding completes
Stop valve 7, returns to initial position after completing filling.During whole, manual low temperature valve 13 is opened all the time, Safety relief valve 12
System plays the effect of pressure protection, and owing to pipeline is compact, precooling process produces a small amount of gas and completes the increasing to low-temperature storage tank 1
Pressure, does not so have natural gas high pressure to dissipate, does not results in waste.
3, circulation pressure reduction: low-temperature storage tank 1 is internal because of temperature rising after filling completes, and after liquified natural gas gasification is
System pressure raises, and when needing blood pressure lowering, the cold liquid in low-temperature storage tank 1 is by going out liquid vacuum tube 2 and going out liquid quick action emergency valve 5 and flow through low
Temperature pump 3, returns to the inside of low-temperature storage tank 1, again be liquefied by the natural gas of gasification by returning liquid quick action emergency valve 6, reduces and is
System pressure, diffuses without high pressure.
Whole system simple in construction, practical and convenient, to diffuse without high pressure, the power consumption of cryopump 3 is relatively low, only 5.5 kilowatts, far
Much smaller than other kinds of cryopump.
Claims (4)
1. a liquefied natural gas liquid-adding device, including low-temperature storage tank (1), goes out liquid vacuum pipe (2), time liquid vacuum pipe
(11), filling gun interface (4), go out liquid vacuum pipe (2) and be arranged on the liquid outlet mouth of low-temperature storage tank (1), return liquid vacuum pipe
(11) the liquid returning end mouth of low-temperature storage tank (1) it is arranged on, it is characterised in that: also include that liquid quick action emergency valve (5), time liquid are promptly cut
Disconnected valve (6) and filling quick action emergency valve (7), return liquid quick action emergency valve (5) and be arranged on out on liquid vacuum pipe (2), return liquid urgent
Stop valve (6) is arranged on back on liquid vacuum pipe (11), and described goes out liquid quick action emergency valve (5) and return liquid quick action emergency valve (6)
Between be sequentially connected with cryopump (3) and effusion meter (8), the exit of effusion meter (8) be provided with temperature detection transmitter (9), pressure
Power detection transmitter (10) and Safety relief valve (12), Safety relief valve (12) is connected with pipeline through low temperature hands valve (13), institute
The filling quick action emergency valve (7) stated is arranged on effusion meter (8) and returns between liquid quick action emergency valve (6), and filling gun interface (4) is arranged
After filling quick action emergency valve (7).
A kind of liquefied natural gas liquid-adding device the most according to claim 1, it is characterised in that: described liquid-adding device includes
Filling loop, filling loop by go out liquid quick action emergency valve (5), cryopump (3), effusion meter (8), filling quick action emergency valve (7) and
Filling gun interface (4) is connected composition by pipeline.
A kind of liquefied natural gas liquid-adding device the most according to claim 1, it is characterised in that: described liquid-adding device includes
Pre-cooling and time liquid loop, pre-cooling and time liquid loop are urgent by going out liquid quick action emergency valve (5), cryopump (3) effusion meter (8) and time liquid
Stop valve (6) is connected composition by pipeline.
A kind of liquefied natural gas liquid-adding device the most according to claim 1, it is characterised in that: described liquid-adding device includes
Safe measuring controls loop, and safe measuring controls loop by effusion meter (8), temperature detection transmitter (10) and Safety relief valve
(13) it is connected composition by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664541.9U CN205824597U (en) | 2016-06-29 | 2016-06-29 | A kind of liquefied natural gas liquid-adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664541.9U CN205824597U (en) | 2016-06-29 | 2016-06-29 | A kind of liquefied natural gas liquid-adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824597U true CN205824597U (en) | 2016-12-21 |
Family
ID=57567136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620664541.9U Expired - Fee Related CN205824597U (en) | 2016-06-29 | 2016-06-29 | A kind of liquefied natural gas liquid-adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529545A (en) * | 2018-04-04 | 2018-09-14 | 中广核核电运营有限公司 | Transmitter evacuation liquid-filling system and method |
| CN110220117A (en) * | 2019-05-07 | 2019-09-10 | 中国国际海运集装箱(集团)股份有限公司 | Liquid feeding equipment |
-
2016
- 2016-06-29 CN CN201620664541.9U patent/CN205824597U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529545A (en) * | 2018-04-04 | 2018-09-14 | 中广核核电运营有限公司 | Transmitter evacuation liquid-filling system and method |
| CN110220117A (en) * | 2019-05-07 | 2019-09-10 | 中国国际海运集装箱(集团)股份有限公司 | Liquid feeding equipment |
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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 |
Granted publication date: 20161221 |