CN104791599A - L-CNG filling station - Google Patents
L-CNG filling station Download PDFInfo
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- CN104791599A CN104791599A CN201510216672.0A CN201510216672A CN104791599A CN 104791599 A CN104791599 A CN 104791599A CN 201510216672 A CN201510216672 A CN 201510216672A CN 104791599 A CN104791599 A CN 104791599A
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Abstract
The invention discloses an L-CNG filling station. The L-CNG filling station is composed of a storage tank, a low-temperature immersed pump, a low-temperature plunger pump, a high-pressure vaporizer, filling equipment, a valve and a pipeline, and is technically characterized in that the pipeline with the valve is connected behind the high-pressure vaporizer in parallel and connected with the filling equipment, and a high-pressure natural gas is filled for vehicle-mounted gas cylinder group trailers through the opening and the closing of the valve, and the pressure signal of a pressure sensor of the filling equipment. The L-CNG filling station disclosed by the invention is capable of filling gas for LNG automobiles, filling gas for CNG automobiles and filling gas for CNG vehicle-mounted gas cylinder group trailers, is the most complete in function without example, and is capable of filling gas for the CNG vehicle-mounted gas cylinder group trailers with two pressures of 20MPa and 25MPa.
Description
Technical field
The present invention relates to a kind of L-CNG (Chinese is meant to liquified natural gas pressurization and is vaporized into high-pressure gaseous rock gas) gas station, belong to gas-fueled vehicles energy complete sets of basic equipment facility field.
Background technique
Existing L-CNG gas station, function is few, and technological process is complicated, unreasonable structure, and Utilization ratio is low, along with LNG and CNG vehicle is popularized, needs us constantly to research and develop, and constantly adapts to the development need of New Times.The L-CNG filling gas station equipment of multifunctional efficient rate is provided.
Summary of the invention
The L-CNG gas station technological process of the present invention's design is simply efficient and rational, has and fills function to CNG mounted gas cylinder group trailer, improve Utilization ratio, possessed the function simultaneously filled 20MPa and 25MPa mounted gas cylinder group trailer first.
Technological scheme:
A kind of L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, wherein, storage tank and low temperature immersed pump, aerating equipment constituent element, complete and unload liquid function to LNG automobile liquid feeding or LNG transport tank car; Storage tank and low temperature plunger pump, high-pressure carburetor, aerating equipment constituent element, complete CNG automobile aerating or CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: the pipeline with valve in parallel and aerating equipment connection after high-pressure carburetor, completed by the Push And Release of valve and the pressure signal of aerating equipment upward pressure sensor and fill high-pressure natural gas to mounted gas cylinder group trailer.
Core technology (rights protection scope) is:
A kind of L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, its technical characteristics is: be connected to after high-pressure carburetor and fill pipeline to vehicle-mounted air cylinder group trailer, control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
High-pressure natural gas refers to the high-pressure natural gas of 20MPa or 25MPa.
Mounted gas cylinder group trailer rated working pressure can be 20MPa, also can be 25MPa, and the present invention can have two kinds of pressure selective to mounted gas cylinder group trailer filling pressure.This is a technical characterstic of the present invention.
How to realize: namely adding on gas column at aerating equipment has pressure selection button, namely has 20MPa, 25MPa pressure selection button, when selecting 20MPa pressure, the pipe pressure sensor added on gas column reaches 20MPa, controls low temperature plunger pump and shuts down; When selecting 25MPa pressure, the pipe pressure sensor added on gas column reaches 25MPa, controls low temperature plunger pump and shuts down.
Want to realize above-mentioned functions, the technological process of very advantages of simple must be had.Fig. 1 is shown in detail design.
Describe in detail below in conjunction with Fig. 1:
A kind of L-CNG gas station, be made up of with pipeline (5,6) storage tank (1), low temperature immersed pump (2), low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8,9), valve (51,61), wherein, storage tank (1) and low temperature immersed pump (2), aerating equipment (9) constituent element, complete and unload liquid function to LNG automobile liquid feeding or LNG transport tank car; Storage tank (1,52,53,54) and low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8) constituent element, complete CNG automobile aerating or CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: high-pressure carburetor (4) afterwards a pipeline with valve (51,61) (5,6) in parallel be connected with aerating equipment (7,8), completed that by the Push And Release of valve (51,61) and the pressure signal of aerating equipment upward pressure sensor high-pressure natural gas is filled to mounted gas cylinder group trailer.
Storage tank, its technical characteristics is: refer to it is the tank body of gas storage, containing the storage tank of the rock gas of liquid and gaseous state, generally contains low-temperature storage tank and high pressure storage tank is also gas cylinder, has low-temperature storage tank 1 and high pressure storage tank i.e. 52 expressions to fill gas cylinder in pipe-line system to CNG automobile; 53 expressions fill the upper air bottle of pipe-line system to CNG automobile; 54 expressions fill low pressure gas cylinder in pipe-line system to CNG automobile; Low-temperature storage tank is containing sleeping tank, Storage Tank; Storage tank one end end socket has liquid in-out mouth; Two ends end socket is had to have liquid in-out mouth respectively; The low-temperature storage tank two ends end socket that this case is selected has liquid in-out mouth, drawing simplicity respectively, and it is clear to express.
Aerating equipment, its technical characteristics is: comprise CNG filling machine, CNG adds gas column, LNG liquid addition machine.Or their general name.Internal duct there is pressure transducer, omits here and do not draw.
Aerating device interior pipeline there is pressure transducer, core content of the present invention is this technological process pressure transducer added in gas column internal duct, control pressure air cylinder group trailer being filled to high-pressure natural gas, namely pressure is 20MPa or 25MPa respectively, namely can fill rock gas to the air cylinder group trailer of 20MPa or 25MPa respectively.This is pioneering at home.
This pressure transducer accepts pressure signal; the control system of its aerating equipment can be chain with low temperature plunger pump control system; namely when in aerating equipment, pressure transducer arrives setup pressure value; the control system of aerating equipment and low temperature plunger pump control system interlocking action, control low temperature plunger pump and shut down.These need this technological process could realize as the flow process in Fig. 1, do not have this technological process to be difficult to realize, and this needs to play creative work and could realize, and is not apparent.Its vehicle-mounted air cylinder group trailer that two kinds of working pressures can be had to meet various rated working pressure fills full high-pressure natural gas, and this is very huge technological progress.
Storage tank and low temperature immersed pump, aerating equipment form, and complete and unload liquid function to LNG automobile liquid feeding or LNG transport tank car; Its technical characteristics:
Storage tank 1 forms with low temperature immersed pump 2, aerating equipment 9, completes to transport tank car to LNG automobile liquid feeding and LNG and unload liquid function.
What 17 of storage tank 1 represented that the fluid liquid phase pipeline and 19 of storage tanks represents that the liquid phase pipeline of storage tank and LNG transport in tank car liquid phase pipeline (be connected when unloading with) and low temperature immersed pump 2 21 represents that the liquid entering hole of low temperature immersed pump connects;
15 of storage tank 1 represents that the gas phase pipeline of storage tank and 22 in low temperature immersed pump 2 represent that the gas phase mouth of low temperature immersed pump is connected;
14 of storage tank 1 represents with 23 in low temperature immersed pump 2, the lower feed liquor liquid phase pipeline and 13 of storage tank represents that the liquid outlet of low temperature immersed pump is connected by valve 24 after representing the upper feed liquor liquid phase pipeline parallel connection of storage tank again;
In temperature immersed pump 2 23 represent that the liquid outlet of low temperature immersed pump is connected with 92 liquid entering holes on 9 liquid fillers; 91 gas returning ports on 9 liquid fillers are connected on the pipeline after the upper feed liquor 13 before valve 24, the parallel connection of lower feed liquor 14 pipeline.
Gas phase mouth 18 of unloading is connected with 16 gas phase pipelines in storage tank 1;
Said structure completes and unloads liquid function to LNG automobile liquid feeding and LNG transport tank car.Detailed process is shown in embodiment below.
Storage tank (1,52,53,54) and low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8) constituent element, complete CNG automobile aerating and CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: high-pressure carburetor (4) afterwards a pipeline with valve (51,61) (5,6) in parallel be connected with aerating equipment (7,8), completed that by the Push And Release of valve (51,61) and the pressure signal of aerating equipment upward pressure sensor high-pressure natural gas is filled to mounted gas cylinder group trailer.This section of words are explained as follows in detail:
The liquid outlet 12 of storage tank 1 is connected with the liquid entering hole 31 of low temperature plunger pump 3, and the gas returning port 11 of storage tank 1 is connected with the gas returning port 32 of low temperature plunger pump 3, and the high pressure liquid outlet 33 of low temperature plunger pump 3 is connected with the liquid entering hole 41 in high-pressure carburetor 4;
5,6 two pipe-line systems in parallel behind air outlet 42 in high-pressure carburetor 4, this is point of the present invention.
Air outlet 42 in high-pressure carburetor 4 and 51 represents that the valve to CNG automobile fills in pipe-line system is connected; Represent with 52 respectively after valve and one-way valve in pipe-line system before gas cylinder and gas cylinder is filled to CNG automobile; 53 expressions fill the one-way valve before the upper air bottle of pipe-line system and gas cylinder to CNG automobile; 54 represent that filling low pressure gas cylinder in pipe-line system to CNG automobile connects and one-way valve before gas cylinder.
7 represent aerating equipment and filling machine; 71 represent with 54, low crimping gas port on CNG filling machines represents that CNG automobile being filled to low pressure gas cylinder in pipe-line system is connected and connects between one-way valve before gas cylinder; 72 represent that CNG filling machine upper crimping gas port is connected between the one-way valve before filling the upper air bottle of pipe-line system and gas cylinder to CNG automobile with representing 53; 73 represent with 52, high-voltage connecting gas port on CNG filling machines represents that CNG automobile being filled to gas cylinder in pipe-line system is connected and connects between one-way valve before gas cylinder.
Air outlet 42 in high-pressure carburetor 4 and 6 represents that filling pipe-line system to mounted gas cylinder group trailer is connected; The suction port 81 being added gas column by 61 valves and 8 is connected.Complete and high-pressure natural gas is filled to mounted gas cylinder group trailer.
Aerating equipment 8 is and adds gas column, and adding gas column has pressure selection to arrange, and can inflate 20MPa or 25MPa mounted gas cylinder group trailer respectively.
Said structure can complete respectively to 20MPa or 25MPa mounted gas cylinder group trailer aerification function.Detailed process is shown in embodiment below.
The technological process of our design is simply efficient, an only road pipe-line system in parallel after high-pressure carburetor, and by the Push And Release of valve 61, the Push And Release of proportioning valve 51, achieves and also can inflate vehicle-mounted air cylinder group trailer CNG automobile aerating; The economic benefit highly significant that such technological progress brings.Also to solve a problem; How to realize:
Mounted gas cylinder group trailer has two kinds of rated pressures and 20MPa or 25MPa; After utilizing the pressure transducer added on gas column to judge vaporizer, whether pipeline pressure reaches the force value on mounted gas cylinder group trailer, controls closing down of low temperature plunger pump.
These need to play creative work, do not have existing experience to use for reference.
Can inflate gas cylinder group trailer, the sale tolerance of every day increases, and Utilization ratio is high.
This case citing employing storage tank, if adopt multiple storage tank, by storage tank serial or parallel connection, realizes vehicle-mounted air cylinder group trailer inflation also in this case protection domain;
If 5 expressions that someone omits in this case fill pipe-line system to CNG automobile inflating function to CNG automobile; not in parallel 5 and 6 pipelines; only adopting 6 to represent and pipe-line system is filled to mounted gas cylinder group trailer, with adding gas column, vehicle-mounted air cylinder group trailer being inflated, also in the protection domain of this case separately.
If the low temperature immersed pump that someone omits in this case is unloaded and liquid feeding, only adopting 6 to represent and pipe-line system is filled to mounted gas cylinder group trailer, with adding gas column, vehicle-mounted air cylinder group trailer being inflated, also in the protection domain of this case separately.
So technological scheme core content is:
A kind of L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, its technical characteristics is: be connected to after high-pressure carburetor and fill pipeline to vehicle-mounted air cylinder group trailer, control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
Comprise in above-mentioned L-CNG gas station overall plan to CNG automobile aerating, to LNG refueling with liquid function is unloaded to LNG tank car; These functions are non-necessary conditions, and necessary condition is:
Be connected to after high-pressure carburetor and pipeline is filled to vehicle-mounted air cylinder group trailer, control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
Innovative point is:
Technological process both can fill full high-pressure natural gas to the mounted gas cylinder group trailer of rated working pressure to be 20MPa also can be 25MPa.
Beneficial effect
1, L-CNG gas station of the present invention can realize LNG refueling, to CNG automobile aerating, inflate CNG mounted gas cylinder group trailer; Function is the most complete, beyond example.
2, technological process is simple, and efficiency is high, and can treat as a mother station effect, its economic benefit is huge;
3, technological process is simply easy to maintenance and operation;
4, can inflate the CNG mounted gas cylinder group trailer of 20MPa or 25MPa two kinds of pressure; This is the technological progress of a highly significant of the present invention.
Accompanying drawing explanation
Fig. 1 represents a kind of L-CNG filling gas station equipment and process flow diagram;
1, low-temperature storage tank is represented; 2, low temperature immersed pump is represented; 3, low temperature plunger pump is represented; 4, high-pressure carburetor is represented; 5 expressions fill pipe-line system to CNG automobile, containing the one-way valve before valve 51 and three gas cylinders and gas cylinder; 6, represent pipe-line system is filled to mounted gas cylinder group trailer; 7, the filling machine to CNG automobile inflation is represented; 8 expressions add gas column to the inflation of mounted gas cylinder group trailer; 9 represent the liquid filler to LNG automobile;
The gas phase pipeline of 11 expression storage tanks; The liquid phase pipeline of 12 expression storage tanks; The upper water influent pipeline of 13 expression storage tanks; The lower water influent pipeline of 14 expression storage tanks; The gas phase pipeline of 15 expression storage tanks; The gas phase pipeline of 16 expression storage tanks; The fluid liquid phase pipeline of 17 expression storage tanks; 18 represent that the gas phase pipeline of storage tank and LNG transport tank car gas phase pipeline (be connected when unloading and use); 19 represent that the liquid phase pipeline of storage tank and LNG transport tank car liquid phase pipeline (be connected when unloading and use);
The liquid entering hole of 21 expression low temperature immersed pumps; The gas-liquid equilibrium mouth of 22 expression low temperature immersed pumps; The liquid outlet of 23 expression low temperature immersed pumps; 24 represent the switching valve to storage tank liquid feeding and the external liquid feeding of liquid filler on low temperature immersed pump liquid outlets;
The liquid entering hole of 31 expression low temperature plunger pumps; The gas returning port of 32 expression low temperature plunger pumps; 31 represent the high pressure liquid outlet on low temperature plunger pump;
The liquid entering hole of 41 expression high-pressure carburetors; The air outlet of 42 expression high-pressure carburetors;
51 expressions fill the valve in pipe-line system to CNG automobile; 52 represent and fill one-way valve in pipe-line system before gas cylinder and gas cylinder to CNG automobile; 53 expressions fill the one-way valve before the upper air bottle of pipe-line system and gas cylinder to CNG automobile; 54 represent and fill one-way valve in pipe-line system before low pressure gas cylinder and gas cylinder to CNG automobile;
61 expressions fill the valve in pipe-line system to mounted gas cylinder group trailer;
71 represent low crimping gas port on CNG filling machine; 72 represent the upper crimping gas port of CNG filling machine; 73 represent high-voltage connecting gas port on CNG filling machine;
81 represent the suction port added on gas column to the inflation of mounted gas cylinder group trailer;
91 represent the gas returning port on the liquid filler of LNG automobile; 92 represent the liquid entering hole on the liquid filler of LNG automobile;
Embodiment
Fig. 1 is shown in overall technological scheme technological process
Technological scheme:
A kind of L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, wherein, storage tank and low temperature immersed pump, aerating equipment constituent element, complete and transport tank car to LNG automobile liquid feeding and LNG and unload liquid function; Storage tank and low temperature plunger pump, high-pressure carburetor, aerating equipment constituent element, complete CNG automobile aerating and CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: the pipeline with valve in parallel and aerating equipment connection after high-pressure carburetor, completed by the Push And Release of valve and the pressure signal of aerating equipment upward pressure sensor and fill high-pressure natural gas to mounted gas cylinder group trailer.
First portion:
Process pipeline connects
A kind of L-CNG gas station, be made up of with pipeline (5,6) storage tank (1), low temperature immersed pump (2), low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8,9), valve (51,61), wherein, storage tank (1) and low temperature immersed pump (2), aerating equipment (9) constituent element, complete and transport tank car to LNG automobile liquid feeding and LNG and unload liquid function; Storage tank (1,52,53,54) and low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8) constituent element, complete CNG automobile aerating and CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: high-pressure carburetor (4) afterwards a pipeline with valve (51,61) (5,6) in parallel be connected with aerating equipment (7,8), completed that by the Push And Release of valve (51,61) and the pressure signal of aerating equipment upward pressure sensor high-pressure natural gas is filled to mounted gas cylinder group trailer.
What 17 of storage tank 1 represented that the fluid liquid phase pipeline and 19 of storage tanks represents that the liquid phase pipeline of storage tank and LNG transport in tank car liquid phase pipeline (be connected when unloading with) and low temperature immersed pump 2 21 represents that the liquid entering hole of low temperature immersed pump connects;
15 of storage tank 1 represents that the gas phase pipeline of storage tank and 22 in low temperature immersed pump 2 represent that the gas phase mouth of low temperature immersed pump is connected;
14 of storage tank 1 represents with 23 in low temperature immersed pump 2, the lower feed liquor liquid phase pipeline and 13 of storage tank represents that the liquid outlet of low temperature immersed pump is connected by valve 24 after representing the upper feed liquor liquid phase pipeline parallel connection of storage tank again;
In temperature immersed pump 2 23 represent that the liquid outlet of low temperature immersed pump is connected with 92 liquid entering holes on the LNG liquid addition machine of 9 pairs of LNG automobile liquid feedings; 91 gas returning ports on 9 liquid fillers are connected on the pipeline after the upper feed liquor 13 before valve 24, the parallel connection of lower feed liquor 14 pipeline.
Gas phase mouth 18 of unloading is connected with 16 gas phase pipelines in storage tank 1;
Storage tank (1,52,53,54) and low temperature plunger pump (3), high-pressure carburetor (4), aerating equipment (7,8) constituent element, complete CNG automobile aerating and CNG vehicle-mounted air cylinder group trailer inflating function; Its technical characteristics is: high-pressure carburetor (4) afterwards a pipeline with valve (51,61) (5,6) in parallel be connected with aerating equipment (7,8), completed that by the Push And Release of valve (51,61) and the pressure signal of aerating equipment upward pressure sensor high-pressure natural gas is filled to mounted gas cylinder group trailer.
The liquid outlet 12 of storage tank 1 is connected with the liquid entering hole 31 of low temperature plunger pump 3, and the gas returning port 11 of storage tank 1 is connected with the gas returning port 32 of low temperature plunger pump 3, and the high pressure liquid outlet 33 of low temperature plunger pump 3 is connected with the liquid entering hole 41 in high-pressure carburetor 4;
5,6 two pipe-line systems in parallel behind air outlet 42 in high-pressure carburetor 4, this is point of the present invention.
Air outlet 42 in high-pressure carburetor 4 and 51 represents that the valve to CNG automobile fills in pipe-line system is connected; Represent with 52 respectively after valve and one-way valve in pipe-line system before gas cylinder and gas cylinder is filled to CNG automobile; 53 expressions fill the one-way valve before the upper air bottle of pipe-line system and gas cylinder to CNG automobile; 54 represent that filling low pressure gas cylinder in pipe-line system to CNG automobile connects and one-way valve before gas cylinder.
7 represent aerating equipment and filling machine; 71 represent with 54, low crimping gas port on CNG filling machines represents that CNG automobile being filled to low pressure gas cylinder in pipe-line system is connected and connects between one-way valve before gas cylinder; 72 represent that CNG filling machine upper crimping gas port is connected between the one-way valve before filling the upper air bottle of pipe-line system and gas cylinder to CNG automobile with representing 53; 73 represent with 52, high-voltage connecting gas port on CNG filling machines represents that CNG automobile being filled to gas cylinder in pipe-line system is connected and connects between one-way valve before gas cylinder.
Air outlet 42 in high-pressure carburetor 4 and 6 represents that filling pipe-line system to mounted gas cylinder group trailer is connected; The suction port 81 being added gas column by 61 valves and 8 is connected.Complete and high-pressure natural gas is filled to mounted gas cylinder group trailer.
Aerating equipment 8 is and adds gas column, and adding gas column has pressure selection button, can inflate 20MPa or 25MPa mounted gas cylinder group trailer respectively.
Said structure can complete respectively to 20MPa or 25MPa mounted gas cylinder group trailer aerification function.Detailed process is shown in embodiment below.
The technological process of our design is simply efficient, an only road pipe-line system in parallel after high-pressure carburetor, and by the Push And Release of valve 61, the Push And Release of proportioning valve 51, achieves and also can inflate vehicle-mounted air cylinder group trailer CNG automobile aerating; The economic benefit highly significant that such technological progress brings.Also to solve a problem; How to realize:
Mounted gas cylinder group trailer has two kinds of rated pressures and 20MPa or 25MPa; After utilizing the pressure transducer added on gas column to judge vaporizer, whether pipeline pressure reaches the force value on mounted gas cylinder group trailer, controls closing down of low temperature plunger pump.
Second portion:
Functional realiey
1, LNG transport tank car is unloaded
LNG transports liquid phase access 19, the gas phase access 18 of tank car;
LNG liquid in tank car enters the liquid entering hole 21 of pump 2 from 19, and pump 2 pressurizes and liquid pressing entered the feed liquor up and down 13,14 of storage tank through liquid outlet 23 through the valve 24 opened, and completes and unloads; Liquid phase 19 is omitted with the valve on gas phase 18 pipeline and is not drawn, and brief description technological process here realizes unloading function;
2, to LNG automobile liquid feeding
Cut-off valve 24, open valve 13,14,15,17, start low temperature immersed pump 2, LNG enters the liquid entering hole 21 of pump 2 from storage tank liquid outlet 17, enter the liquid entering hole 92 of liquid filler 9 from the liquid outlet 23 of pump 2 through pressurization, pipeline before return-air in 9 liquid filler liquid feeding processes enters valve 24 closedown through 91 returns in storage tank 1 through the liquid entering hole up and down 13,14 of storage tank, completes LNG liquid addition process.
3, to CNG automobile fueling process
Valve 61 cuts out, valve 51 is opened, the liquid entering hole 31 that in storage tank 1, LNG liquid enters low temperature plunger pump through liquid outlet 12 enters in chamber, wherein the return-air 32 of plunger pump is communicated with the gas phase 11 of storage tank 1, ensure that the liquid in storage tank 1 enters plunger pump continually, the high pressure of LNG liquid after plunger pump pressurization enters 41 liquid entering holes of high-pressure carburetor 4 through liquid outlet 33; Enter the valve 51 opened again through 42 air outlets and enter 52,53,54 gas cylinders, complete CNG automobile inflating function by senior middle school's low pressure of filling machine 7;
4, to CNG vehicle-mounted air cylinder group trailer fueling process
Valve 61 is opened, valve 51 cuts out, the liquid entering hole 31 that in storage tank 1, LNG liquid enters low temperature plunger pump through liquid outlet 12 enters in chamber, wherein the return-air 32 of plunger pump is communicated with the gas phase 11 of storage tank 1, ensure that the liquid in storage tank 1 enters plunger pump continually, the high pressure of LNG liquid after plunger pump pressurization enters 41 liquid entering holes of high-pressure carburetor 4 through liquid outlet 33; Entering the valve 61 opened again to enter through 42 air outlets, adding 81 suction ports of gas column 8 by completing CNG vehicle-mounted air cylinder group trailer aerification function;
5,6 pipe-line systems are completed filling machine by the switch of valve 51,61 valve and are added the conversion between gas column; Simultaneously: mounted gas cylinder group trailer has two kinds of rated pressures and 20MPa or 25MPa; After utilizing the pressure transducer added on gas column to judge vaporizer, whether pipeline pressure reaches the force value on mounted gas cylinder group trailer, controls closing down of low temperature plunger pump.Realize filling respectively the gas cylinder trailer of two kinds of pressure.This is also an important inventive point.
Comprise in above-mentioned L-CNG gas station overall plan to CNG automobile aerating, to LNG refueling with liquid function is unloaded to LNG tank car; These functions are non-necessary conditions, and necessary condition is:
Be connected to after high-pressure carburetor to vehicle-mounted air cylinder group trailer fill pipeline (6, represent pipe-line system filled to mounted gas cylinder group trailer; That inflates mounted gas cylinder group trailer containing 8 expressions adds gas column; ), control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
Innovative point is:
Technological process both can fill full high-pressure natural gas to the mounted gas cylinder group trailer of rated working pressure to be 20MPa also can be 25MPa.This is the function that existing L-CNG gas station does not have, and is also an innovative point of the present invention.
Claims (2)
1. a L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, its technical characteristics is: be connected to after high-pressure carburetor and fill pipeline to vehicle-mounted air cylinder group trailer, control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
2. set up a kind of method of L-CNG gas station, be made up of storage tank, low temperature immersed pump, low temperature plunger pump, high-pressure carburetor, aerating equipment, valve and pipeline, its technical characteristics is: be connected to after high-pressure carburetor and fill pipeline to vehicle-mounted air cylinder group trailer, control by aerating equipment upward pressure sensor upward pressure signal pressure mounted gas cylinder group trailer being filled to high-pressure natural gas, the mounted gas cylinder group trailer completed rated working pressure is 20MPa or 25MPa fills full high-pressure natural gas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216672.0A CN104791599A (en) | 2015-04-25 | 2015-04-25 | L-CNG filling station |
| CN201510397176.XA CN105020574A (en) | 2015-04-25 | 2015-06-29 | L-CNG gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216672.0A CN104791599A (en) | 2015-04-25 | 2015-04-25 | L-CNG filling station |
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| Publication Number | Publication Date |
|---|---|
| CN104791599A true CN104791599A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510216672.0A Pending CN104791599A (en) | 2015-04-25 | 2015-04-25 | L-CNG filling station |
| CN201510397176.XA Pending CN105020574A (en) | 2015-04-25 | 2015-06-29 | L-CNG gas station |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510397176.XA Pending CN105020574A (en) | 2015-04-25 | 2015-06-29 | L-CNG gas station |
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Cited By (3)
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| CN107559583A (en) * | 2017-10-30 | 2018-01-09 | 江林言 | Gas station constant temperature level pressure fast quantification fills control technique and system |
| CN107618362A (en) * | 2017-09-26 | 2018-01-23 | 武汉齐达康环保科技股份有限公司 | A kind of CNGV vehicles gas storage system and method based on the conversion of vehicle-mounted liquid gas |
| CN114087538A (en) * | 2020-08-24 | 2022-02-25 | 安瑞科(廊坊)能源装备集成有限公司 | LNG (liquefied Natural gas) conveying and filling system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106764413A (en) * | 2017-01-20 | 2017-05-31 | 佛山市汽车燃气有限公司 | A kind of gas station of the emergent gasification function of band |
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| DE59201683D1 (en) * | 1992-11-17 | 1995-04-20 | Scheidt & Bachmann Gmbh | Motor vehicle filling station with fuel vapor recovery. |
| CN201184495Y (en) * | 2008-04-11 | 2009-01-21 | 安瑞科(廊坊)能源装备集成有限公司 | Combined natural gas dispensing system charging CNG and LNG for natural gas automobile |
| CN101520128B (en) * | 2009-03-24 | 2011-02-09 | 罗东晓 | Movable type method and device for supplying liquid phase natural gas and gas phase natural gas |
| CN203488979U (en) * | 2013-10-09 | 2014-03-19 | 山东宏达科技集团有限公司 | Skid-mounted full-integrated LNG (Liquefied Natural Gas) and LCNG (Liquefied Compressed Natural Gas) remote control monitored unattended filling station |
-
2015
- 2015-04-25 CN CN201510216672.0A patent/CN104791599A/en active Pending
- 2015-06-29 CN CN201510397176.XA patent/CN105020574A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618362A (en) * | 2017-09-26 | 2018-01-23 | 武汉齐达康环保科技股份有限公司 | A kind of CNGV vehicles gas storage system and method based on the conversion of vehicle-mounted liquid gas |
| CN107559583A (en) * | 2017-10-30 | 2018-01-09 | 江林言 | Gas station constant temperature level pressure fast quantification fills control technique and system |
| CN114087538A (en) * | 2020-08-24 | 2022-02-25 | 安瑞科(廊坊)能源装备集成有限公司 | LNG (liquefied Natural gas) conveying and filling system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105020574A (en) | 2015-11-04 |
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