CN106352232A - Skid-mounted liquefied natural gas injection device - Google Patents
Skid-mounted liquefied natural gas injection device Download PDFInfo
- Publication number
- CN106352232A CN106352232A CN201510440678.6A CN201510440678A CN106352232A CN 106352232 A CN106352232 A CN 106352232A CN 201510440678 A CN201510440678 A CN 201510440678A CN 106352232 A CN106352232 A CN 106352232A
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- storage tank
- lng
- natural gas
- liquid adding
- liquefied natural
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Abstract
The invention provides a skid-mounted Liquefied Natural Gas (LNG) injection device which comprises an LNG liquid adding pump, a storage tank, a multifunctional pressurizer and the like, wherein one end of a liquid adding machine is connected with the storage tank through the LNG liquid adding pump, and the other end of the liquid adding machine is connected with the storage tank; a safety relief valve assembly and a low-temperature shock-proof pressure meter are arranged between the liquid adding machine and the LNG liquid adding pump; a cutoff valve and a safety valve relief assembly are arranged between the LNG liquid adding pump and the storage tank; a check valve and a safety valve relief assembly are arranged between the liquid adding machine and the storage tank. By the additional arrangement of the check valve, the safety valve relief assemblies and the cutoff, the problems of layering and instauration of liquid in the storage tank are solved; by the arrangement of a heat isolation and preservation plate, the environment adaptability of the skid-mounted LNG injection device is improved; the skid-mounted LNG injection device is simple in structure and small in building investment; an injection station is noise-free, and LNG can be transported by a special injection end and injected into the vacuum insulation low-temperature storage tank in the station; building of the station cannot be restricted by a natural gas pipe network, so that large-scale popularization is facilitated.
Description
Technical field
The present invention relates to a kind of liquefied natural gas filling equipment, more particularly, to a kind of prizing liquefied natural gas filling apparatus.
Background technology
Natural gas is the emerging energy of clean and effective, LNGV is the gas-fueled vehicles of new generation with the low temperature liquid natural gas of lng plant produced as fuel, its outstanding advantages is that lng energy density is big, gas-liquid volume is big, automobile continual mileage length (up to more than 400km), environmental clean, because its current liquefied natural gas (lng) automobile with the obvious advantage widely uses.The filling demand of the LNGV of mobility although there is now the filling station of fixing liquefied natural gas, cannot be met, and equipment pipeline is complicated, and motor is contacted with lng, bog amount of diffusin can be increased, lead to operating cost higher, liquid layered, undersaturated problem easily occur in storage tank.In addition lng evaporation in the process, can produce aerofluxuss and waste, and more harsh to outside environmental requirement, and environmental suitability is poor.
Content of the invention
According to above technical problem，The present invention provides a kind of prizing liquefied natural gas filling apparatus，Including lng fluid filling pump、Storage tank、Multifunction pressurized device、Liquid filler、Check-valves、Safety relief valve assembly、Low temperature shockproof pressure gage、Filling gun、Stop valve、Thermal insulation thermal insulation board，One end of described liquid filler is connected with storage tank by lng fluid filling pump，The other end is directly connected with storage tank，It is provided with Safety relief valve assembly and low temperature shockproof pressure gage between described liquid filler and lng fluid filling pump，It is provided with stop valve and Safety relief valve assembly between described lng fluid filling pump and storage tank，It is provided with check-valves between described liquid filler and storage tank and safety diffuses assembly，The other end of described storage tank is connected with multifunction pressurized device and filling gun，It is provided with Safety relief valve assembly between described storage tank and filling gun、Check-valves、Stop valve and low temperature shockproof pressure gage，The outside of described storage tank is arranged with thermal insulation thermal insulation board.
Described lng fluid filling pump is reciprocating low temperature plunger displacement pump.
Described equipment pipe pipe part is stainless steel.
Described check-valves, Safety relief valve assembly and stop valve are vacuum and low temperature stop valve.
Described pressure gauge is low temperature shockproof pressure gauge.
It is provided with control panel on described liquid filler.
The invention has the benefit that the present invention increases check-valves, Safety relief valve assembly and stop valve, heated up to storage tank liquid phase using storage tank supercharger, solve liquid layered in storage tank, unsaturated problem；It is arranged with heat insulating board so that the present invention is suitable for different external working environments in the outside of storage tank, improve the environmental suitability of the present invention；Present configuration is simple, small investment of building a station; take up an area few; no large-sized power plant; easy for installation, easily migration, operating cost are low, filling station noiselessness; lng available dedicated filling end transport; fill and arrive at a station in interior vacuum thermal insulation low temperature storage tank, build a station and do not restricted by gas distributing system, be therefore easy to large-scale promotion.
Brief description
Fig. 1 is present configuration schematic diagram.
Specific embodiment
According to Fig. 1, the present invention is further described:
As figure, lng fluid filling pump -1, storage tank -2, multifunction pressurized device -3, liquid filler -4, check-valves -5, Safety relief valve assembly -6, low temperature shockproof pressure gage -7, filling gun -8, stop valve -9, thermal insulation thermal insulation board -10.
Embodiment 1
The present invention provides a kind of prizing liquefied natural gas filling apparatus，Including lng fluid filling pump 1、Storage tank 2、Multifunction pressurized device 3、Liquid filler 4、Check-valves 5、Safety relief valve assembly 6、Low temperature shockproof pressure gage 7、Filling gun 8、Stop valve 9、Thermal insulation thermal insulation board 10，One end of liquid filler 4 is connected with storage tank 2 by lng fluid filling pump 1，The other end is directly connected with storage tank 2，It is provided with Safety relief valve assembly 6 and low temperature shockproof pressure gage 7 between liquid filler 4 and lng fluid filling pump 1，It is provided with stop valve 9 and Safety relief valve assembly 6 between lng fluid filling pump 1 and storage tank 2，It is provided with check-valves 5 between liquid filler 4 and storage tank 2 and safety diffuses assembly 6，The other end of storage tank 2 is connected with multifunction pressurized device 3 and filling gun 8，It is provided with Safety relief valve assembly 6 between storage tank 2 and filling gun 8、Check-valves 5、Stop valve 9 and low temperature shockproof pressure gage 7，The outside of storage tank 2 is arranged with thermal insulation thermal insulation board 10.
Embodiment 2
The present invention can realize unloading by automatic control system and artificial manually-operated gate handover operation, pressure regulation, filling and pre-cooling, 4 workflows of pressure release.
1st, unload flow process: lng is filled by end supercharging by the multifunction pressurized device of device portal 3, the lng filling in end is passed through this device using pressure reduction and be filled in storage tank 2 to store by the stop valve 9 opening storage tank 2, realizes unloading.
2nd, regulating process: because the usage amount with lng increases, storage tank 2 pressure can be gradually lowered, now need storage tank 2 is pressurized, the drain pipe road of lng liquid from reservoir 2 is directly entered multifunction pressurized device 3 and gasifies, the gas phase pipe through storage tank 2 for the gas after gasification returns the gas-phase space of storage tank 2, is storage tank 2 pressure regulation.
3rd, filling and pre- cold flow: the saturation lng liquid in storage tank 2 is pressurizeed by lng fluid filling pump 1, by filling gun 8 to vehicle-mounted lng steel cylinder filling after mass flowmenter 7 measures, by gas returning port, residual air in vehicle-mounted bottle is carried out being recovered into feed liquor under storage tank, by lng gas liquefaction.Because lng fluid filling pump 1 and mass flowmenter 7 must use under cold state, must assure that equipment working environment be low temperature liquid lng, can not be with the presence of gaseous state in filling process, therefore cryogenic must be kept before filling, control system can take the indexs such as temperature and pressure to monitor at any time according to the temperature and pressure metering of setting in pipeline, once the too high pump that can automatically open of temperature carries out pre-cooling cycle, to guarantee the working properly of system.
4th, pressure release flow process: during system equipment uses, lng liquid in storage tank 2 and pipeline can constantly absorb heat and evaporate and gasify, the gas of this partial gasification is as discharged not in time, storage tank 2 and pipeline pressure meeting more and more higher, when storage tank 2 pressure is more than setting value, associated safety valve diffuses valve module 6 and opens, the gas in release storage tank 2 and pipeline after multifunction pressurized device 3 heats up in the device, reduce pressure it is ensured that storage tank 2 and pipe safety.Interior conduit of the present invention is stainless steel tube and vacuum sleeve, sleeve pipe evacuation insulation, and local is wound around the insulation of uric acid fat, and flow process is succinct, and pipeline is few, reduces lng evaporation rate, it is to avoid the excessive boosting of pipeline is diffused.
The above be only the preferred embodiment of the present invention it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of prizing liquefied natural gas filling apparatus，Including lng fluid filling pump、Storage tank、Multifunction pressurized device、Liquid filler、Check-valves、Safety relief valve assembly、Low temperature shockproof pressure gage、Filling gun、Stop valve、Thermal insulation thermal insulation board，One end of described liquid filler is connected with storage tank by lng fluid filling pump，The other end is directly connected with storage tank，It is provided with Safety relief valve assembly and low temperature shockproof pressure gage between described liquid filler and lng fluid filling pump，It is provided with stop valve and Safety relief valve assembly between described lng fluid filling pump and storage tank，It is provided with check-valves between described liquid filler and storage tank and safety diffuses assembly，The other end of described storage tank is connected with multifunction pressurized device and filling gun，It is provided with Safety relief valve assembly between described storage tank and filling gun、Check-valves、Stop valve and low temperature shockproof pressure gage，The outside of described storage tank is arranged with thermal insulation thermal insulation board.
2. according to a kind of prizing liquefied natural gas filling apparatus described in claim 1 it is characterised in that: described lng fluid filling pump be reciprocating low temperature plunger displacement pump.
3. according to a kind of prizing liquefied natural gas filling apparatus described in claim 1 it is characterised in that described equipment pipe pipe part is stainless steel.
4. according to a kind of prizing liquefied natural gas filling apparatus described in claim 1 it is characterised in that described check-valves, Safety relief valve assembly and stop valve are vacuum and low temperature stop valve.
5. according to a kind of prizing liquefied natural gas filling apparatus described in claim 1 it is characterised in that described pressure gauge is low temperature shockproof pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440678.6A CN106352232A (en) | 2015-07-24 | 2015-07-24 | Skid-mounted liquefied natural gas injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440678.6A CN106352232A (en) | 2015-07-24 | 2015-07-24 | Skid-mounted liquefied natural gas injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106352232A true CN106352232A (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440678.6A Pending CN106352232A (en) | 2015-07-24 | 2015-07-24 | Skid-mounted liquefied natural gas injection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106352232A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916645A (en) * | 2018-09-11 | 2018-11-30 | 江苏秋林特能装备股份有限公司 | The lossless fueling station of cryogenic liquid |
| CN112178455A (en) * | 2020-09-28 | 2021-01-05 | 富地红华动力（武汉）有限责任公司 | LPG (liquefied petroleum gas) small storage tank gasification control system and gasification control method thereof |
| CN113188047A (en) * | 2021-04-09 | 2021-07-30 | 新兴能源装备股份有限公司 | Integrated LNG liquid feeding device |
-
2015
- 2015-07-24 CN CN201510440678.6A patent/CN106352232A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916645A (en) * | 2018-09-11 | 2018-11-30 | 江苏秋林特能装备股份有限公司 | The lossless fueling station of cryogenic liquid |
| CN112178455A (en) * | 2020-09-28 | 2021-01-05 | 富地红华动力（武汉）有限责任公司 | LPG (liquefied petroleum gas) small storage tank gasification control system and gasification control method thereof |
| CN113188047A (en) * | 2021-04-09 | 2021-07-30 | 新兴能源装备股份有限公司 | Integrated LNG liquid feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170125 |
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| WD01 | Invention patent application deemed withdrawn after publication |