CN204300680U - Skid-mounted LNG mono-pump two-shipper filling apparatus - Google Patents
Skid-mounted LNG mono-pump two-shipper filling apparatus Download PDFInfo
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- CN204300680U CN204300680U CN201420631025.7U CN201420631025U CN204300680U CN 204300680 U CN204300680 U CN 204300680U CN 201420631025 U CN201420631025 U CN 201420631025U CN 204300680 U CN204300680 U CN 204300680U
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Abstract
A kind of skid-mounted LNG mono-pump two-shipper filling apparatus, is characterized in that, comprise LNG tank car, LNG storage tank, LNG immersed pump, LNG filling device I, LNG filling device II, vaporizer and control system; LNG tank car is connected with the first pressure piping, the first gas phase pipeline, the first liquid phase pipeline respectively; Described first liquid phase pipeline is connected with LNG immersed pump, and LNG immersed pump is connected with the 3rd liquid phase pipeline, the 4th liquid phase pipeline, and the 3rd liquid phase pipeline is connected with the first gas phase pipeline with vaporizer through low-temperature solenoid valve; Described LNG storage tank is connected with the first gas phase pipeline through the second gas phase pipeline.The utility model decreases the technological process of adjusting saturation pressure, solve the problem adjusting the slow process of saturation pressure and generation BOG gas to discharge in a large number, achieve the technological process that BOG reclaims, achieve when not increasing e-quipment and pipe, reduce a large amount of wastes, thus reach the energy-conservation effect of reduction of discharging.
Description
Technical field
The utility model relates to LNG skid-mounted aerator, is specifically related to a kind of skid-mounted LNG mono-pump two-shipper filling apparatus.
Background technique
LNG, as vehicle fuel, compared with diesel oil, has continual mileage long, good economy performance, the advantages such as cleanliness without any pollution, has started at home to use on a large scale.Due to LNG low-temperature characteristics, very high requirement is proposed to the condition of storage of LNG, store at LNG and in operation process, have part LNG evaporation, produce flash steam (i.e. BOG).Existing skid-mounted LNG comprises flow process of unloading, boosting flow process, liquid feeding flow process and pressure release flow process.Boosting flow process is a unusual process slowly, can produce a large amount of BOG.When overpressure, for ensureing the safety of low-temperature storage tank, general BOG can directly be discharged in air.BOG is that the rock gas of high-quality causes energy waste to sky discharge, and BOG gas has very strong greenhouse effect, damages environment.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of skid-mounted LNG mono-pump two-shipper filling apparatus, decrease the technological process of adjusting saturation pressure, achieve the technological process that BOG reclaims simultaneously, achieve when not increasing e-quipment and pipe, reduce a large amount of wastes, reach energy-conservation object.
The technical solution of the utility model is: a kind of skid-mounted LNG mono-pump two-shipper filling apparatus, comprises LNG tank car, LNG storage tank, LNG immersed pump, LNG filling device I, LNG filling device II, vaporizer and control system; LNG tank car is connected with the first pressure piping, the first gas phase pipeline, the first liquid phase pipeline respectively; Described first liquid phase pipeline is connected with LNG immersed pump, and LNG immersed pump is connected with the 3rd liquid phase pipeline, the 4th liquid phase pipeline, and the 3rd liquid phase pipeline is connected with the first gas phase pipeline with vaporizer through low-temperature solenoid valve; Described LNG storage tank is connected with the first gas phase pipeline (8) through the second gas phase pipeline.
Described first liquid phase pipeline is connected with LNG storage tank through second liquid phase pipeline; Described 3rd liquid phase pipeline, the 4th liquid phase pipeline are connected with LNG storage tank; Described 4th liquid phase pipeline is connected with LNG filling device I, LNG filling device II respectively.
Described first pressure piping is connected with the second pressure piping, and the second pressure piping is connected with LNG storage tank; Described first pressure piping is arranged between low-temperature solenoid valve and vaporizer.
Described LNG immersed pump is connected with the first gas phase pipeline by the 3rd gas phase pipeline; Described LNG immersed pump is connected with LNG storage tank by the 4th gas phase pipeline.
Described LNG storage tank is provided with safe diffusion mouth, and safe diffusion mouth is provided with three-way valve and hand stop valve, and three-way valve is connected with EAG heater through safety valve, and hand stop valve is connected with EAG heater.
Described EAG heater is connected with heating pipe line, and heating pipe line is connected with the second pressure piping, second liquid phase pipeline, the second gas phase pipeline, the 4th gas phase pipeline, the 3rd liquid phase pipeline, LNG filling device I, LNG filling device II.
Described LNG storage tank is provided with level meter drawing-off mouth, can detect the liquid level in LNG storage tank.
Described LNG storage tank is provided with Vacuum testing head and vacuum orifice, can extract the vacuum in LNG storage tank.
The utility model is for the situation of generation adjusting the flow process of saturation pressure and a large amount of BOG in existing tooling, decrease the technological process of adjusting saturation pressure, solve the problem adjusting the slow process of saturation pressure and generation BOG gas to discharge in a large number, achieve the technological process that BOG reclaims, achieve when not increasing e-quipment and pipe, reduce a large amount of wastes, thus reach the energy-conservation effect of reduction of discharging.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
The utility model is illustrated below in conjunction with drawings and Examples.
A kind of skid-mounted LNG mono-pump two-shipper filling apparatus, as shown in Figure 1, comprises LNG tank car 1, LNG storage tank 2, LNG immersed pump 3, LNG filling device I 4, LNG filling device II 5, vaporizer 6 and control system.
The boost port of LNG tank car 1 is connected with the boost port of the first pressure piping 7, is provided with the first stop valve 10 after the boost port of the first pressure piping 7.First pressure piping 7 is connected with the second pressure piping 14, and the second pressure piping 14 is connected from supercharging liquid outlet 201 with LNG storage tank 2.
The gas phase mouth of LNG tank car 1 is connected with the boost port of the first gas phase pipeline 8, is provided with the second stop valve 11 after the boost port of the first gas phase pipeline 8.First gas phase pipeline 8, second gas phase pipeline 15 is connected with vaporizer 6.Second gas phase pipeline 15 is connected with the boost port 207 of LNG storage tank 2.The 3rd gas phase pipeline 16 that is connected with LNG immersed pump 3 is connected with the first gas phase pipeline 8 through the first pneumatic valve 17, and is arranged between the boost port of the first gas phase pipeline 8 and the second stop valve 11.The 4th gas phase pipeline 21 be connected with LNG immersed pump 3 is connected with the pump pond gas phase refluxing opening 205 of LNG storage tank 2 through the second pneumatic valve 22.
The liquid phase mouth of LNG tank car 1 is connected with the liquid phase mouth of the first liquid phase pipeline 9, is provided with the 3rd stop valve 12 after the liquid phase mouth of the first liquid phase pipeline 9.First liquid phase pipeline 9 is connected with the liquid entering hole of LNG immersed pump 3, is provided with the 4th stop valve 13 between the first liquid phase pipeline 9 and the liquid entering hole of LNG immersed pump 3.Be provided with second liquid phase pipeline 18 between 4th stop valve 13 and the liquid entering hole of LNG immersed pump 3, second liquid phase pipeline 18 is connected with the pump pond supply opening 202 of LNG storage tank 2.Second liquid phase pipeline 18 is provided with the 3rd pneumatic valve 19.
Motor in LNG immersed pump 3 is connected with the 3rd liquid phase pipeline 23 and the 4th liquid phase pipeline 24 through the 5th stop valve 20.4th liquid phase pipeline 24 is connected with filling device I 4 by the 4th pneumatic valve 31, and the 4th liquid phase pipeline 24 is connected with filling device I 4 by the 5th pneumatic valve 32.Be provided with mass flowmenter in filling device I 4 and filling device II 5, added liquid is measured.
3rd liquid phase pipeline 23 is divided into again water influent pipeline 24 and lower water influent pipeline 25.Upper water influent pipeline 24 is provided with the 6th pneumatic valve 26 successively, and upper water influent pipeline 24 is connected with the upper liquid entering hole 206 of LNG storage tank 2.Lower water influent pipeline 25 is provided with the 7th pneumatic valve 27, and lower water influent pipeline 25 is connected with the lower liquid entering hole 203 of LNG storage tank 2.
Vaporizer 6 is connected with the 3rd liquid phase pipeline 23 by low-temperature solenoid valve 29.First pressure piping 7 is arranged between vaporizer 6 and low-temperature solenoid valve 29.
The filling device gas-liquid refluxing opening 204 of LNG storage tank 2 is connected with filling device I 4, filling device II 5 respectively by the 6th liquid phase pipeline 28.
Filling device I 4 is connected with flame trap 34 with EAG heater 33 by heating pipe line 30 with filling device II 5.Heating pipe line 30 is connected with the second pressure piping 14, second liquid phase pipeline 18, second gas phase pipeline 15, the 4th gas phase pipeline 21, the 3rd liquid phase pipeline 23, thus LNG unnecessary in each pipeline can be discharged in air after EAG heater 33 heats up.EAG heater 33 is connected with the safe diffusion mouth 208 of LNG storage tank by three-way valve 35, and three-way valve 35 is provided with safety valve 36, EAG heater 33 and directly can also be connected with the safe diffusion mouth 208 of LNG storage tank by the 6th stop valve 37.EAG heater 33 can make the LNG in pipeline be warming up to normal temperature, is then discharged in air after flame trap 34, prevents LNG from burning.
LNG storage tank 2 is provided with Vacuum testing head and takes out true aperture (not shown in FIG.).Vacuum testing head can detect the volume of vacuum in LNG storage tank 2, when vacuum volume is wherein excessive, opens the stop valve taken out and true aperture is arranged, and extracts the vacuum in LNG storage tank 2.LNG storage tank is provided with level meter drawing-off mouth, can detect the liquid level in LNG storage tank.
Working procedure
(1) to unload flow process: the liquid phase mouth opening LNG tank car 1; Opening the 3rd stop valve 12 and the 4th stop valve 13, liquid phase LNG on the first liquid phase pipeline 9 enters in LNG immersed pump 3 through the first liquid phase pipeline 9; Open the 5th stop valve 20, liquid phase LNG is sent into the 3rd liquid phase pipeline 23 by the motor that control system is opened in LNG immersed pump 3; Control system opens the 6th pneumatic valve 26 and the 7th pneumatic valve 27, and liquid enters upper liquid entering hole 206 and lower liquid entering hole 203 respectively through upper water influent pipeline 24 and lower water influent pipeline 25.
(2) liquid feeding flow process: control system is opened the 3rd pneumatic valve 19, liquid phase LNG and entered second liquid phase pipeline 18 from the pump pond supply opening 202 of LNG storage tank 2 thus enter LNG immersed pump 3; Open the 5th stop valve 20, liquid phase LNG and enter the 4th liquid phase pipeline 24; Control system is opened the 4th pneumatic valve 31 and is carried out liquid feeding by filling device I 4, and control system is opened the 5th pneumatic valve 32 and carried out liquid feeding by filling device II 5.
(3) supercharging flow process: 1. LNG tank car is from supercharging flow process: when the pressure in LNG tank car 1 is lower than setting pressure, open the first stop valve 10 and the second stop valve 11, LNG enters vaporizer 6 through the first pressure piping 7, the first gas phase pipeline 8 is entered after gasification, then enter LNG tank car 1, thus realize the supercharging of LNG tank car.LNG tank car decreases the frequency of utilization of LNG immersed pump 3 from supercharging flow process, carries out liquid feeding while can realizing unloading.
2. supercharging flow process forced by LNG tank car: when LNG immersed pump 3 normally runs, when the pressure of LNG tank car drops to 0.4MPa, open the second stop valve 11, the 3rd stop valve 12, the 3rd stop valve 13, the 5th stop valve 20, low-temperature solenoid valve 29, LNG enters the 3rd liquid phase pipeline 23 through the first liquid phase pipeline 9, LNG immersed pump 3, the 5th stop valve 20, then vaporizer 26 is entered, enter LNG tank car through the first gas phase pipeline 8, thus complete the pressure supercharging of LNG tank car.
3. the supercharging flow process of LNG storage tank: when LNG immersed pump 3 normally runs, when the pressure of LNG storage tank drops to 0.4MPa, open the 3rd pneumatic valve 19, the 5th stop valve 20, low-temperature solenoid valve 29, the pump pond supply opening 202 of LNG storage tank 2 enters LNG immersed pump 3 through second liquid phase pipeline 18, the 3rd liquid phase pipeline 23 is entered through the 5th stop valve 20, then vaporizer 6 is entered, BOG is converted into after vaporizer 6 heats, BOG enters the boost port 207 of LNG storage tank 2 by the second gas phase pipeline 15, realizes the supercharging of LNG storage tank.
(4) BOG recovery process: when the pressure of inner storage tank of standing when unloading is higher than 0.6mpa, open the second stop valve 11, BOG in LNG storage tank enters the first gas phase pipeline 8 by boost port 207 through the second gas phase pipeline 15, finally enter LNG tank car 1, by the LNG liquid of low temperature, BOG is liquefied, thus realize the recovery of BOG.
(5) pressure release flow process: when the setting pressure of the gaseous pressure in LNG tank car 1 higher than safety valve 36, control system opens the safety-valve 36, releasing pressure automatically; Also can the emptying of manual unlocking the 6th stop valve 37, make LNG tank car 1 pressure release.The natural gas via EAG heater 33 of emptying is warming up to normal temperature, is then discharged in air through flame trap 34 protection.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (8)
1. a skid-mounted LNG mono-pump two-shipper filling apparatus, is characterized in that, comprises LNG tank car (1), LNG storage tank (2), LNG immersed pump (3), LNG filling device I (4), LNG filling device II (5), vaporizer (6) and control system; LNG tank car (1) is connected with the first pressure piping (7), the first gas phase pipeline (8), the first liquid phase pipeline (9) respectively; Described first liquid phase pipeline (9) is connected with LNG immersed pump (3), LNG immersed pump (3) is connected with the 3rd liquid phase pipeline (23), the 4th liquid phase pipeline (24), and the 3rd liquid phase pipeline (23) is connected with the first gas phase pipeline (8) with vaporizer (6) through low-temperature solenoid valve (29); Described LNG storage tank (2) is connected with the first gas phase pipeline (8) through the second gas phase pipeline (15).
2. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described first liquid phase pipeline (9) is connected with LNG storage tank (2) through second liquid phase pipeline (18); Described 3rd liquid phase pipeline (23), the 4th liquid phase pipeline (24) are connected with LNG storage tank (2); Shown 4th liquid phase pipeline (24) is connected with LNG filling device I (4), LNG filling device II (5) respectively.
3. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described first pressure piping (7) is connected with the second pressure piping (14), and the second pressure piping (14) is connected with LNG storage tank (2); Described first pressure piping (7) is arranged between low-temperature solenoid valve (29) and vaporizer (6).
4. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described LNG immersed pump (3) is connected with the first gas phase pipeline (8) by the 3rd gas phase pipeline (16); Described LNG immersed pump (3) is connected with LNG storage tank (2) by the 4th gas phase pipeline (21).
5. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described LNG storage tank (2) is provided with safe diffusion mouth (208), safe diffusion mouth (208) is provided with three-way valve (35) and hand stop valve (37), three-way valve (35) is connected with EAG heater through safety valve (36), and hand stop valve (37) is connected with EAG heater.
6. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 5, it is characterized in that, described EAG heater is connected with heating pipe line (30), and heating pipe line (30) is connected with the second pressure piping (14), second liquid phase pipeline (18), the second gas phase pipeline (15), the 4th gas phase pipeline (21), the 3rd liquid phase pipeline (23), LNG filling device I (4), LNG filling device II (5).
7. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described LNG storage tank (2) is provided with level meter drawing-off mouth, can detect the liquid level in LNG storage tank.
8. skid-mounted LNG mono-pump two-shipper filling apparatus according to claim 1, it is characterized in that, described LNG storage tank (2) is provided with Vacuum testing head and vacuum orifice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420631025.7U CN204300680U (en) | 2014-10-29 | 2014-10-29 | Skid-mounted LNG mono-pump two-shipper filling apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420631025.7U CN204300680U (en) | 2014-10-29 | 2014-10-29 | Skid-mounted LNG mono-pump two-shipper filling apparatus |
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| CN204300680U true CN204300680U (en) | 2015-04-29 |
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| CN201420631025.7U Active CN204300680U (en) | 2014-10-29 | 2014-10-29 | Skid-mounted LNG mono-pump two-shipper filling apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105584A (en) * | 2017-12-21 | 2018-06-01 | 沈阳航天新光压力容器有限公司 | A kind of LNG Storage, Transport method using low-temperature storage tank |
| CN108506721A (en) * | 2018-04-25 | 2018-09-07 | 天津良华新能源科技有限公司 | A kind of gas station with combined type storage tank |
| CN110425418A (en) * | 2019-07-31 | 2019-11-08 | 郑州朗润智能装备股份有限公司 | Box LNG aerating skid-mounted device process system and its working method |
| CN111365610A (en) * | 2020-04-01 | 2020-07-03 | 江苏国富氢能技术装备有限公司 | Discharging pressure regulating system applied to hydrogen storage type hydrogen adding station |
| CN111365610B (en) * | 2020-04-01 | 2024-04-26 | 江苏国富氢能技术装备股份有限公司 | Discharging pressure regulating system applied to hydrogen storage type hydrogenation station |
-
2014
- 2014-10-29 CN CN201420631025.7U patent/CN204300680U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105584A (en) * | 2017-12-21 | 2018-06-01 | 沈阳航天新光压力容器有限公司 | A kind of LNG Storage, Transport method using low-temperature storage tank |
| CN108506721A (en) * | 2018-04-25 | 2018-09-07 | 天津良华新能源科技有限公司 | A kind of gas station with combined type storage tank |
| CN108506721B (en) * | 2018-04-25 | 2023-10-10 | 天津良华新能源科技股份有限公司 | A kind of having Combined type filling station of storage tank |
| CN110425418A (en) * | 2019-07-31 | 2019-11-08 | 郑州朗润智能装备股份有限公司 | Box LNG aerating skid-mounted device process system and its working method |
| CN110425418B (en) * | 2019-07-31 | 2021-06-04 | 郑州朗润智能装备股份有限公司 | Box type LNG (liquefied Natural gas) filling skid-mounted device process system and working method thereof |
| CN111365610A (en) * | 2020-04-01 | 2020-07-03 | 江苏国富氢能技术装备有限公司 | Discharging pressure regulating system applied to hydrogen storage type hydrogen adding station |
| CN111365610B (en) * | 2020-04-01 | 2024-04-26 | 江苏国富氢能技术装备股份有限公司 | Discharging pressure regulating system applied to hydrogen storage type hydrogenation station |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450000, No. 12, building 1, No. 1, block 11, block 1, Gaoxin Road, hi tech, Henan, Zhengzhou Patentee after: Zhengzhou Lang run intelligent equipment Limited by Share Ltd Address before: 450000, No. 12, building 1, No. 1, block 11, block 1, Gaoxin Road, hi tech, Henan, Zhengzhou Patentee before: Zhengzhou Lang Run oil equipment Co., Ltd |