CN203656565U - Pump-free LNG (Liquefied Natural Gas) filling system - Google Patents
Pump-free LNG (Liquefied Natural Gas) filling system Download PDFInfo
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- CN203656565U CN203656565U CN201320780162.2U CN201320780162U CN203656565U CN 203656565 U CN203656565 U CN 203656565U CN 201320780162 U CN201320780162 U CN 201320780162U CN 203656565 U CN203656565 U CN 203656565U
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Abstract
The utility model discloses a pump-free LNG (Liquefied Natural Gas) filling system. The pump-free LNG filling system comprises an LNG low-temperature storage tank, wherein a first pipeline and a second pipeline are arranged on an upper-part gas phase of the LNG low-temperature storage tank; a third pipeline and a fourth pipeline are arranged on a lower-part liquid phase; the first pipeline is provided with a first valve and the second pipeline is provided with a second valve; the third pipeline is provided with a third valve and the fourth pipeline is provided with a fourth valve; the second pipeline and the third pipeline are communicated with a liquid unloading opening through a liquid unloading pipeline; the liquid unloading opening is provided with an eighth valve; and a second emergency cut-off valve and a third emergency cut-off valve are respectively arranged at parts, corresponding to the second pipeline and the third pipeline, of the liquid unloading opening. With the adoption of the technical form of a liquid feeding pipeline, a system gas-phase pipeline and a system liquid unloading and pressurizing pipeline, car filling energy consumption can be reduced to zero, and equipment including a low-temperature pump does not need to be additionally arranged, so that the use cost and the maintenance cost of the equipment including the low-temperature pump are saved.
Description
Technical field
The utility model relates to a kind of without pump LNG refueling system.
Background technique
Global LNG(Liquefied Natural Gas in recent years: LNG Liquefied natural gas) production and trade increasingly active, becoming the focus that world's oil and gas industry is new.For guaranteeing energy supply diversification and improving energy consumption structure, some energy-consuming big countries more and more pay attention to the introduction of LNG, international major oil companies also turn to LNG business by its new profit growth point one after another, and LNG will become the oil popular energy commodity of next whole world contention afterwards.LNG is global fastest-rising primary energy at present, if can greatly develop LNG in China, can make up to a great extent petroleum resources deficiency, guarantee the diversification of energy supply, progressively improve China's environmental quality, and the natural gas line conveying engineering such as transfering natural gas from the west to the east to China also can play complementary important function.
At present, main compressor-type or the oil hydraulic pump formula gas station of adopting, its filling machine is all to take from rock gas in three gas holder of basic, normal, high pressure in gas station place to additional gas, in the time of underpressure in gas holder, in gas station compressor skid body or the gas cylinder of oil hydraulic pump skid body from gas transportation vehicle, get gas and supplement pressurization in basic, normal, high pressure gas holder, the sequence of positions of three gas holder of basic, normal, high pressure is also changeless, and reaching the gas order of getting that certain pressure meets filling machine can be to additional gas.And compressor-type or oil hydraulic pump formula gas station, floor space is large, large and its filling machine of noise must be under the cooperation of compressor or oil hydraulic pump, by compressor or oil hydraulic pump, air cylinder is pressurizeed, just can complete the aerating of automobile gas cylinder, it has the shortcomings such as mechanical wear is high, consuming electric power is huge, cost of investment is huge, and LNG refueling system of the prior art can not process completely to the gas such as flash steam producing, and has wasted ample resources.
Therefore, prior art needs further improvement and develops.
Model utility content
In view of above-mentioned the deficiencies in the prior art, it is a kind of without pump LNG refueling system that the purpose of this utility model is to provide, and automobile filling power consumption is reduced to zero power consumption, saves the maintenance cost to equipment such as cryopumps.
For solving the problems of the technologies described above, the utility model scheme comprises:
A kind of without pump LNG refueling system, it comprises LNG low-temperature storage tank, wherein, described LNG low-temperature storage tank upper gaseous phase is provided with the first pipeline, the second pipeline, bottom liquid phase is provided with the 3rd pipeline and the 4th pipeline, is provided with on the first valve, the second pipeline and is provided with on the second valve, the 3rd pipeline and is provided with on the 3rd valve, the 4th pipeline and is provided with the 4th valve on the first pipeline; The second pipeline, the 3rd pipeline, by unloading liquid pipeline and unloading liquid mouth and be connected, unload liquid mouth place and are provided with the 8th valve, unload liquid pipeline and the second pipeline, the 3rd pipeline corresponding part is respectively arranged with the second Emergeny Cutoff Valves, the 3rd Emergeny Cutoff Valves; The 4th pipeline is connected with liquid filler by liquid feeding pipeline, is provided with the 4th Emergeny Cutoff Valves on liquid feeding pipeline; The first pipeline access flash steam main pipe rail, flash steam main pipe rail and the first pipeline joint are provided with the first Emergeny Cutoff Valves, on flash steam main pipe rail, access respectively the first flash steam pipeline and the second flash steam pipeline, the first flash steam pipeline is connected with liquid filler, the second flash steam pipeline is connected with supercharging vaporizer, flash steam heater respectively, and the second flash steam pipeline and flash steam heater joint are provided with the 5th Emergeny Cutoff Valves; A gas phase pipeline is accessed in the second flash steam pipeline and supercharging vaporizer joint, is provided with the 6th valve for being connected with liquefied natural gas carrier vehicle on gas phase pipeline; Supercharging vaporizer with unload liquid pipeline and be connected by unloading liquid branch road, unload on liquid branch road and be provided with stop valve, unload liquid branch road and supercharging vaporizer joint access pressure piping, on pressure piping, be provided with the 7th valve.
Described without pump LNG refueling system, wherein, above-mentioned flash steam heater is connected with LNG Liquefied natural gas pipe network by knock out drum, pressure regulation metering device, Jia Xiu mechanism successively; Between above-mentioned the first valve and above-mentioned the first Emergeny Cutoff Valves, be provided with combined type means for diverging.
Described without pump LNG refueling system, wherein, combinations thereof formula means for diverging comprises connecting pipeline, connecting pipeline one end is provided with the tenth valve, the other end is provided with the 9th valve, the 9th valve is connected with the 6th Emergeny Cutoff Valves, and the tenth valve, the 6th Emergeny Cutoff Valves are connected on air-spreading pipe road; The centre of connecting pipeline is by the first safety valve access overpressure protection pipeline, and overpressure protection pipeline one end is by the second safety valve access air-spreading pipe road, and the other end is by the 3rd safety valve access air-spreading pipe road; Air-spreading pipe Lu Yuyi is loose, and hot-air heater is connected, and loose hot-air heater is connected with a drain.
The one that the utility model provides is without pump LNG refueling system, adopt liquid feeding pipeline, system gas phase pipeline, system to unload the technology type of liquid and supercharging pipeline, to reduce automobile filling power consumption to zero power consumption, do not need to increase the equipment such as cryopump, saved equipment user cost and the maintenance costs such as cryopump, and adopt flash steam to recycle solution, recycle a large amount of rock gases, save ample resources, improved the utilization ratio to LNG Liquefied natural gas, reduced overlapping investment construction; Especially in system of the present utility model, in LNG region, there is no electric driving force line arrangement, improved the Security of system operation.
Accompanying drawing explanation
Fig. 1 is the structural representation without pump LNG refueling system in the utility model;
Fig. 2 is the structural representation of combined type means for diverging in the utility model;
Fig. 3 is the schematic diagram of processing flash steam in the utility model.
Embodiment
It is a kind of without pump LNG refueling system that the utility model provides, and for making the purpose of this utility model, technological scheme and effect clearer, clear and definite, below the utility model further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
It is a kind of without pump LNG refueling system that the utility model provides, as shown in Figure 1, it comprises LNG low-temperature storage tank 1, wherein, described LNG low-temperature storage tank 1 upper gaseous phase is provided with the first pipeline 2, the second pipeline 3, bottom liquid phase is provided with on the 3rd pipeline 4 and the 4th pipeline 5, the first pipelines 2 and is provided with on the first valve 6, the second pipeline 3 and is provided with on the second valve 7, the 3rd pipeline 4 and is provided with on the 3rd valve 8, the 4th pipeline 5 and is provided with the 4th valve 9; The second pipeline 3, the 3rd pipeline 4, by unloading liquid pipeline 10 and unloading liquid mouth and be connected, unload liquid mouth place and are provided with the 8th valve 11, unload liquid pipeline 10 and the second pipeline 3, the 3rd pipeline 4 corresponding parts are respectively arranged with the second Emergeny Cutoff Valves 12, the 3rd Emergeny Cutoff Valves 13; The 4th pipeline 5 is connected with liquid filler 15 by liquid feeding pipeline 14, is provided with the 4th Emergeny Cutoff Valves 16 on liquid feeding pipeline 14; The first pipeline 2 accesses flash steam main pipe rail 17, flash steam main pipe rail 17 and the first pipeline 2 joints are provided with the first Emergeny Cutoff Valves 18, on flash steam main pipe rail 17, access respectively the first flash steam pipeline 19 and the second flash steam pipeline 20, the first flash steam pipeline 19 is connected with liquid filler 15, the second flash steam pipeline 20 is connected with supercharging vaporizer 21, flash steam heater 22 respectively, and the second flash steam pipeline 20 is provided with the 5th Emergeny Cutoff Valves 23 with flash steam heater 22 joints; The second flash steam pipeline 20 accesses a gas phase pipeline 24 with supercharging vaporizer 21 joints, is provided with the 6th valve 26 for being connected with liquefied natural gas carrier vehicle 25 on gas phase pipeline 24; Supercharging vaporizer 21 with unload liquid pipeline 10 and be connected by unloading liquid branch road 27, unload on liquid branch road 27 and be provided with stop valve 28, unload liquid branch road 27 and supercharging vaporizer 21 joints access pressure pipings 46, on pressure piping 46, be provided with the 7th valve 30.
Further, as shown in Figure 3, above-mentioned flash steam heater 22 is connected with LNG Liquefied natural gas pipe network 34 by knock out drum 31, pressure regulation metering device 32, Jia Xiu mechanism 33 successively; Between above-mentioned the first valve 6 and above-mentioned the first Emergeny Cutoff Valves 18, be provided with combined type means for diverging.
In another preferred embodiment of the present utility model, as shown in Figure 2, combinations thereof formula means for diverging comprises connecting pipeline 35, connecting pipeline 35 one end are provided with the tenth valve 36, the other end is provided with the 9th valve 37, the 9th valve 37 is connected with the 6th Emergeny Cutoff Valves 38, and the tenth valve 36, the 6th Emergeny Cutoff Valves 38 are connected on air-spreading pipe road 39; Overpressure protection pipeline 41 is accessed by the first safety valve 40 in the centre of connecting pipeline 35, and air-spreading pipe road 39 is accessed by the second safety valve 42 in overpressure protection pipeline 41 one end, and the other end accesses air-spreading pipe road 39 by the 3rd safety valve 43; Air-spreading pipe road 39 is connected with a loose hot-air heater 44, and loose hot-air heater 44 is connected with a drain 45.
Use described method of carrying out LNG Liquefied natural gas processing without pump LNG refueling system, it comprises the following steps:
From the supercharging step of unloading
By the interface on liquefied natural gas carrier vehicle 25 respectively with the 6th valve 26, the 7th valve 30, the 8th valve 11 is connected, interior liquefied natural gas carrier vehicle 25 cryogenic liquide is first flowed into by pressure piping 46, now, stop valve 25, the 5th Emergeny Cutoff Valves 23, the first Emergeny Cutoff Valves 18 all cuts out, the 7th valve 30, the 6th valve 26 is all opened, make cryogenic liquide form gasifying gas after 21 superchargings of supercharging vaporizer, gasifying gas enters liquefied natural gas carrier vehicle 25 again, under the effect of liquid surface pressure, liquid is extruded to enter and unload liquid pipeline 10, finally entering LNG low-temperature storage tank 1 completes from supercharging and unloads, now the 8th valve 11, the second Emergeny Cutoff Valves 12 and the second valve 7 are opened, or the 8th valve 11, the 3rd emergency cut-off valve 13 and the 3rd valve 8 are opened, can open as required corresponding pipeline.
Without pump LNG refueling system pressure regulation step
Liquid in LNG low-temperature storage tank 1 is through unloading liquid pipeline 10 and unloading liquid branch road 27 and enter supercharging vaporizer 21 and carry out supercharging, gas after supercharging enters the gas phase in LNG low-temperature storage tank 1 through the second flash steam pipeline 20 with flash steam house steward 17 tunnels, make without the pressure regulation of pump LNG refueling system to setting pressure, now, the 3rd valve 8, the 3rd Emergeny Cutoff Valves 13, stop valve 28, the first Emergeny Cutoff Valves 18 and the first valve 6 are opened, and the 8th valve 11, the 7th valve 30, the 5th Emergeny Cutoff Valves 23 are closed;
Without pump LNG refueling system liquid feeding step
The interior liquid of LNG low-temperature storage tank 1 enters liquid filler 15 through liquid feeding pipeline 14, metering mechanism by liquid filler 15 carries out liquid feeding to the vehicle of being bullied, in the time that the storage pressure of the vehicle of being bullied is too high, return to the gas phase in LNG low-temperature storage tank 1 through the first flash steam pipeline 19 with flash steam main pipe rail 17, now, the first Emergeny Cutoff Valves 18 and the first valve 6 are opened, and the 5th Emergeny Cutoff Valves 23, the 6th valve 26 are closed with stop valve 28; Or enter flash steam heater 22 through the first flash steam pipeline 19, flash steam main pipe rail 17 and the second flash steam pipeline 20, and now, the first Emergeny Cutoff Valves 18, the 6th valve 26 are closed with stop valve 28, and the 5th Emergeny Cutoff Valves is opened.
In another preferred embodiment of the present utility model, concrete also the comprising of above-mentioned LNG Liquefied natural gas processing method:
Flash steam recycling step
In the time exceeding normal pressure value without pump LNG refueling system internal pressure, open the 5th Emergeny Cutoff Valves 23, the rock gas of superpressure enters after 22 heating of flash steam heater, enters LNG Liquefied natural gas pipe network 34 through knock out drum 31, pressure regulation metering device 32, Jia Xiu mechanism 33 after processing.The flash steam occurring in system running, all can enter after 22 heating of flash steam heater by opening or closing of corresponding valve, reenters in LNG Liquefied natural gas pipe network 34, improves the utilization ratio to LNG Liquefied natural gas.
Further, also comprise and diffuse step
In the time exceeding normal pressure value without pump LNG refueling system internal pressure, the rock gas of superpressure enters connecting pipeline 35, enter air-spreading pipe road 39 by the 9th valve 37 and the 6th Emergeny Cutoff Valves 38, be heated to negative more than 100 degrees Celsius, by drain 45 emptying by loose hot-air heater 44; If nine valves 37 and the 6th Emergeny Cutoff Valves 38 break down, open the tenth valve 36, the rock gas of superpressure enters connecting pipeline and enters air-spreading pipe road 39 by the tenth valve 36, is heated to negative more than 100 degrees Celsius, by drain 45 emptying by loose hot-air heater 44; If nine valves 37, the 6th Emergeny Cutoff Valves 38 and the tenth valve 36 all break down; open the first safety valve 40, the second safety valve 42 and the 3rd safety valve 43; the rock gas of superpressure directly enters air-spreading pipe road 39 by overpressure protection pipeline 41, is heated to negative 100 degrees Celsius passes through above drain 45 emptying by loose hot-air heater 44.
Certainly; more than explanation is only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this specification; that makes is allly equal to alternative, obvious variant, within all dropping on the essential scope of this specification, ought to be subject to protection of the present utility model.
Claims (3)
1. one kind without pump LNG refueling system, it comprises LNG low-temperature storage tank, it is characterized in that, described LNG low-temperature storage tank upper gaseous phase is provided with the first pipeline, the second pipeline, bottom liquid phase is provided with the 3rd pipeline and the 4th pipeline, is provided with on the first valve, the second pipeline and is provided with on the second valve, the 3rd pipeline and is provided with on the 3rd valve, the 4th pipeline and is provided with the 4th valve on the first pipeline; The second pipeline, the 3rd pipeline, by unloading liquid pipeline and unloading liquid mouth and be connected, unload liquid mouth place and are provided with the 8th valve, unload liquid pipeline and the second pipeline, the 3rd pipeline corresponding part is respectively arranged with the second Emergeny Cutoff Valves, the 3rd Emergeny Cutoff Valves; The 4th pipeline is connected with liquid filler by liquid feeding pipeline, is provided with the 4th Emergeny Cutoff Valves on liquid feeding pipeline; The first pipeline access flash steam main pipe rail, flash steam main pipe rail and the first pipeline joint are provided with the first Emergeny Cutoff Valves, on flash steam main pipe rail, access respectively the first flash steam pipeline and the second flash steam pipeline, the first flash steam pipeline is connected with liquid filler, the second flash steam pipeline is connected with supercharging vaporizer, flash steam heater respectively, and the second flash steam pipeline and flash steam heater joint are provided with the 5th Emergeny Cutoff Valves; A gas phase pipeline is accessed in the second flash steam pipeline and supercharging vaporizer joint, is provided with the 6th valve for being connected with liquefied natural gas carrier vehicle on gas phase pipeline; Supercharging vaporizer with unload liquid pipeline and be connected by unloading liquid branch road, unload on liquid branch road and be provided with stop valve, unload liquid branch road and supercharging vaporizer joint access pressure piping, on pressure piping, be provided with the 7th valve.
2. according to claim 1ly it is characterized in that without pump LNG refueling system, above-mentioned flash steam heater is connected with LNG Liquefied natural gas pipe network by knock out drum, pressure regulation metering device, Jia Xiu mechanism successively; Between above-mentioned the first valve and above-mentioned the first Emergeny Cutoff Valves, be provided with combined type means for diverging.
3. according to claim 2 without pump LNG refueling system, it is characterized in that, combinations thereof formula means for diverging comprises connecting pipeline, connecting pipeline one end is provided with the tenth valve, the other end is provided with the 9th valve, the 9th valve is connected with the 6th Emergeny Cutoff Valves, and the tenth valve, the 6th Emergeny Cutoff Valves are connected on air-spreading pipe road; The centre of connecting pipeline is by the first safety valve access overpressure protection pipeline, and overpressure protection pipeline one end is by the second safety valve access air-spreading pipe road, and the other end is by the 3rd safety valve access air-spreading pipe road; Air-spreading pipe Lu Yuyi is loose, and hot-air heater is connected, and loose hot-air heater is connected with a drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780162.2U CN203656565U (en) | 2013-12-02 | 2013-12-02 | Pump-free LNG (Liquefied Natural Gas) filling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320780162.2U CN203656565U (en) | 2013-12-02 | 2013-12-02 | Pump-free LNG (Liquefied Natural Gas) filling system |
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| CN203656565U true CN203656565U (en) | 2014-06-18 |
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| CN201320780162.2U Expired - Fee Related CN203656565U (en) | 2013-12-02 | 2013-12-02 | Pump-free LNG (Liquefied Natural Gas) filling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672394A (en) * | 2013-12-02 | 2014-03-26 | 青岛捷能高新技术有限责任公司 | Pump-free LNG gas-filling system and liquefied natural gas processing method |
| CN104295893A (en) * | 2014-10-20 | 2015-01-21 | 江苏鸿昌特种车辆有限公司 | Safe low-temperature liquid conveying and storage tank |
| CN105822896A (en) * | 2016-04-11 | 2016-08-03 | 山东大力专用汽车制造有限公司 | Clean energy low-temperature storage tank parallel filling device and filling technology thereof |
| CN108224078A (en) * | 2018-01-16 | 2018-06-29 | 中科睿凌江苏低温设备有限公司 | A kind of air energy low-temperature liquid gas is without pump loading system |
| CN111336403A (en) * | 2020-03-30 | 2020-06-26 | 日照海达尔加气设备有限公司 | Filling method of micro-power-consumption low-temperature liquid filling system |
| CN112412664A (en) * | 2019-08-22 | 2021-02-26 | 中集船舶海洋工程设计研究院有限公司 | LNG fuel gas supply system and ship |
-
2013
- 2013-12-02 CN CN201320780162.2U patent/CN203656565U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672394A (en) * | 2013-12-02 | 2014-03-26 | 青岛捷能高新技术有限责任公司 | Pump-free LNG gas-filling system and liquefied natural gas processing method |
| CN103672394B (en) * | 2013-12-02 | 2015-09-16 | 青岛捷能高新技术有限责任公司 | A kind of without pump LNG refueling system and LNG Liquefied natural gas processing method |
| CN104295893A (en) * | 2014-10-20 | 2015-01-21 | 江苏鸿昌特种车辆有限公司 | Safe low-temperature liquid conveying and storage tank |
| CN104295893B (en) * | 2014-10-20 | 2016-07-06 | 江苏鸿昌特种车辆有限公司 | A kind of cryogenic liquid transports basin safely |
| CN105822896A (en) * | 2016-04-11 | 2016-08-03 | 山东大力专用汽车制造有限公司 | Clean energy low-temperature storage tank parallel filling device and filling technology thereof |
| CN105822896B (en) * | 2016-04-11 | 2018-09-07 | 山东大力专用汽车制造有限公司 | A kind of parallel charging device of clean energy resource low-temperature storage tank and its fill technique |
| CN108224078A (en) * | 2018-01-16 | 2018-06-29 | 中科睿凌江苏低温设备有限公司 | A kind of air energy low-temperature liquid gas is without pump loading system |
| CN112412664A (en) * | 2019-08-22 | 2021-02-26 | 中集船舶海洋工程设计研究院有限公司 | LNG fuel gas supply system and ship |
| CN112412664B (en) * | 2019-08-22 | 2023-10-24 | 中集船舶海洋工程设计研究院有限公司 | LNG fuel gas supply system and ship |
| CN111336403A (en) * | 2020-03-30 | 2020-06-26 | 日照海达尔加气设备有限公司 | Filling method of micro-power-consumption low-temperature liquid filling system |
| CN111336403B (en) * | 2020-03-30 | 2021-09-21 | 日照市海达尔能源装备科技股份有限公司 | Filling method of micro-power-consumption low-temperature liquid filling system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141202 |
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| EXPY | Termination of patent right or utility model |