CN209101004U - A kind of LNG gas station - Google Patents
A kind of LNG gas station Download PDFInfo
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- CN209101004U CN209101004U CN201821998763.XU CN201821998763U CN209101004U CN 209101004 U CN209101004 U CN 209101004U CN 201821998763 U CN201821998763 U CN 201821998763U CN 209101004 U CN209101004 U CN 209101004U
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- lng
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Abstract
The utility model provides a kind of LNG gas station, belongs to natural gas filling station technical field.It solves the problems, such as that the gas being discharged when existing LNG gas station can not be to pressure release carries out recycling and security risk is big.This LNG gas station, the dispenser of the outlet connection of LNG storage tank, LNG cryogenic pump and LNG cryogenic pump including pedestal, on pedestal and the LNG gasification device being connect with LNG storage tank, gas bottle is additionally provided on pedestal, the import of gas bottle is connected to the pressure relief opening of LNG storage tank and is equipped with safety valve between the two, the import of LNG cryogenic pump and the outlet of LNG storage tank and between the two be equipped with triple valve, the outlet of gas bottle and one of orifice of triple valve, adsorbent is filled in gas bottle, the exit of gas bottle is equipped with filter structure.The utility model can effectively recycle pressure release gas, and the pollution to environment is reduced while eliminating safe hidden trouble.
Description
Technical field
The utility model belongs to natural gas filling station technical field, is related to a kind of LNG gas station, especially a kind of band pressure release
The LNG gas station of device.
Background technique
LNG (Liquefied Natural Gas), i.e. liquefied natural gas are by gaseous natural air cooling under normal pressure
But to -162 DEG C, it is allowed to liquid made of condensation.Since LNG is a kind of energy of high-efficiency environment friendly, increasingly by people's
Favor, use scope are increasingly extensive.When unloading, the LNG in tank car is transferred in LNG storage tank, is needed after transfer to LNG
LNG in storage tank boosts, and generallys use two ways: being boosted by LNG cryogenic pump circulated at low velocity;Pass through LNG gas
Change device boosting, is sent in LNG storage tank after LNG is gasified in gasifier, to increase pressure.Aerating process is as follows: LNG storage tank
Interior LNG is sent into dispenser after pressurizeing by LNG cryogenic pump, is added by the air filling gun being set on dispenser to the mounted gas cylinder of automobile
Gas.
Emergency discharge device is set generally in LNG storage tank, opens related valve, discharges the gas in LNG storage tank, is reduced
Pressure, it is ensured that the safety of LNG storage tank.Gas is directly discharged into atmosphere by existing LNG storage tank in pressure release, is made to atmosphere
At pollution, while there is also biggish security risks.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, propose one kind can to pressure release gas into
The LNG gas station that row effectively recycles.
The purpose of this utility model can be realized by the following technical scheme:
A kind of LNG gas station, LNG storage tank, LNG cryogenic pump including pedestal, on pedestal go out with LNG cryogenic pump
The dispenser of mouth connection and the LNG gasification device being connect with LNG storage tank, which is characterized in that it is additionally provided with gas bottle on the pedestal,
The import of the gas bottle is connected to the pressure relief opening of LNG storage tank and is equipped with safety valve, the import of the LNG cryogenic pump between the two
It is equipped with triple valve with the outlet of LNG storage tank and between the two, one of them of the outlet of the gas bottle and triple valve connect
Mouth connection, the gas bottle is interior to be filled with adsorbent, and the exit of the gas bottle is equipped with filter structure.
The specific connection structure of this LNG gas station is as follows: the import of the pressure relief opening and gas bottle of LNG storage tank passes through adapter tube one
Connection, is arranged safety valve on adapter tube one;In the outlet connecting tubes two of LNG storage tank, in the outlet connecting tubes three of gas bottle,
In the import connecting tubes four of LNG cryogenic pump, adapter tube two, adapter tube three are connected to adapter tube four by triple valve.Triple valve has three
Kind state: 1, adapter tube two, adapter tube three and adapter tube four disconnect;2, adapter tube two and adapter tube four are connected, and adapter tube three and adapter tube four are disconnected at this time
It opens;3, adapter tube three and adapter tube four are connected, and adapter tube two and adapter tube four disconnect at this time.It can select to take LNG by swivel tee valve
LNG in storage tank, or take the gas in gas bottle.
In a kind of above-mentioned LNG gas station, the gas bottle includes bottle body and fastens the lid of setting, institute with bottle body
The import for stating gas bottle is set on bottle body, and the outlet of the gas bottle is set on lid, is formed between the bottle body and lid
Cavity, above-mentioned adsorbent are filled in the cavity.
In a kind of above-mentioned LNG gas station, the filter structure includes the casing being threaded through in adsorbent, the set
The surface of pipe has several apertures and one end of described sleeve pipe and the outlet of gas bottle, the casing are interior filled with filtering
Cotton.
The gas come out by LNG storage tank pressure release enters in cavity through the import of gas bottle, is absorbed by adsorbent, by gas
It is stored in gas bottle, environment is prevented to be contaminated.When needing using gas in gas bottle, triple valve is adjusted to suitable position
It sets, opens LNG cryogenic pump, the gas in adsorbent enters in casing by several apertures, after filter cotton filters
Outlet through gas bottle enters in dispenser.
In a kind of above-mentioned LNG gas station, the casing is along the axially extending of gas bottle.It is equivalent to and increases casing
Surface area, also just increase while can enter the air inflow in casing, though have part aperture be adsorbed agent blocking after, gas
Body can also substantially increase the stability of gas bottle through in not blocked aperture sleeve pipe.
In a kind of above-mentioned LNG gas station, the adsorbent is active carbon.
In a kind of above-mentioned LNG gas station, the bottle body has annular gear edge at one end of bottle cap, described
Bottle cap is resisted against annular gear close to one end of bottle body and is equipped with locking mechanism between upper, described bottle body and bottle cap.Bottle cap it is interior
Diameter be slightly larger than bottle body outer diameter, when one end of bottle cap be resisted against annular gear along it is upper when, bottle body protrudes into bottle cap close to one end of bottle cap
Interior 10cm, the two cooperate, can realize fast positioning.
In a kind of above-mentioned LNG gas station, the locking mechanism includes several hinged seats on the bottle body, several
The deck being arranged in a one-to-one correspondence with hinged seat on bottle cap and the screw rod being hinged on hinged seat, several hinged seats
Axis wire loop along bottle body is uniformly distributed, and has card slot on the deck, and it is big to be threaded with outer diameter on the screw rod
In the locking nut of card slot width.Hinged seat and bottle body are integrally formed, and deck and bottle cap are integrally formed.Screw rod can be around itself and hinge
The articulated shaft of joint chair is swung, and shows two states: first is that card slot is protruded into the free end of screw rod, second is that the free end of screw rod is detached from
Card slot.When the free end of screw rod is protruded into card slot, by rotating locking nut, reach mesh bottle cap being locked on bottle body
's.
In a kind of above-mentioned LNG gas station, the bottle cap and annular gear are equipped with sealing ring between.It is tied by locking
After bottle cap is locked on bottle body by structure, sealing ring is pressed in bottle cap and annular gear between, plays sealing function.
Compared with prior art, this LNG gas station has the advantage that
LNG storage tank, LNG cryogenic pump are connected together with gas bottle three by triple valve, reduce the setting of valve,
Convenient for operation;Casing is set in gas bottle, filter cotton is set in casing, prevents the powder of adsorbent from gas being followed to enter and adds
In mechanism of qi, the degree of purity of gas is improved to a certain extent;Gas bottle is easily assembled to, good airproof performance, can effectively be carried out to gas
Storage, prevents LNG storage tank from safety accident occur because of hypertonia.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of preferred embodiment provided by the utility model.
Fig. 2 is the cross-sectional view of gas bottle provided by the utility model.
Fig. 3 is enlarged diagram at A in Fig. 2 provided by the utility model.
In figure, 1, LNG storage tank;2, LNG cryogenic pump;3, dispenser;4, LNG gasification device;5, gas bottle;6, safety valve;7,
Triple valve;8, adsorbent;9, bottle body;10, lid;11, casing;12, filter cotton;13, annular gear edge;14, hinged seat;15, block
Seat;16, screw rod;17, card slot;18, locking nut;19, sealing ring.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
LNG gas station as shown in Figure 1 is LNG storage tank 1, LNG cryogenic pump 2 including pedestal, on pedestal, low with LNG
The dispenser 3 of the outlet connection of temperature pump 2 and the LNG gasification device 4 connecting with LNG storage tank 1, wherein pedestal is not shown in FIG. 1.Bottom
Gas bottle 5 is additionally provided on seat, the import of gas bottle 5 is connected to the pressure relief opening of LNG storage tank 1 and is equipped between the two safety valve 6,
The import of LNG cryogenic pump 2 is with the outlet of LNG storage tank 1 and between the two equipped with triple valve 7, the outlet and threeway of gas bottle 5
One of orifice as import of valve 7, gas bottle 5 is interior to be filled with adsorbent 8, and the exit of gas bottle 5 was equipped with
Filter structure.
Specifically, the pressure relief opening of LNG storage tank 1 is connected to the import of gas bottle 5 by adapter tube one, peace is set on adapter tube one
Full valve 6.In the outlet connecting tubes two of LNG storage tank 1, in the outlet connecting tubes three of gas bottle 5, in the import of LNG cryogenic pump 2
Connecting tubes four, there are three interface, import of the two of them interface as triple valve 7, another interface conducts for the tool of triple valve 7
The outlet of triple valve 7, adapter tube two, adapter tube three respectively with the orifice on triple valve 7 as import, adapter tube four and triple valve 7
As outlet orifice.There are three types of states for the tool of triple valve 7: 1, adapter tube two, adapter tube three and adapter tube four disconnect;2, adapter tube two
It is connected with adapter tube four, adapter tube three and adapter tube four disconnect at this time;3, adapter tube three and adapter tube four are connected, and adapter tube two and adapter tube four are disconnected at this time
It opens.It can select to take the LNG in LNG storage tank 1 by swivel tee valve 7, or take the gas in gas bottle 5.
As shown in Fig. 2, gas bottle 5 includes bottle body 9 and fastens the lid 10 of setting with bottle body 9, the import of gas bottle 5 is set to
On bottle body 9, the outlet of gas bottle 5 is set on lid 10, cavity is formed between bottle body 9 and lid 10, adsorbent 8 is filled in the sky
It is intracavitary.
As shown in Fig. 2, the import of gas bottle 5 is connected to cavity, it can be directly by inhaling by the gas that the import of gas bottle 5 enters
Attached dose 8 absorption.Filter structure includes the casing 11 being threaded through in adsorbent 8, and the surface of casing 11 has several apertures and casing
11 one end and the outlet of gas bottle 5, casing 11 is interior to be filled with filter cotton 12.The gas warp come out by 1 pressure release of LNG storage tank
The import of gas bottle 5 enters in cavity, is absorbed by adsorbent 8, and gas is stored in gas bottle 5, prevents environment by dirt
Dye.When needing using gas in gas bottle 5, triple valve 7 is adjusted to suitable position, opens LNG cryogenic pump 2, is located at absorption
Gas in agent 8 enters in casing 11 by several apertures, and the outlet through gas bottle 5 enters after the filtering of filter cotton 12
In dispenser 3.
In the present embodiment, as shown in Fig. 2, casing 11 is along the axially extending of gas bottle 5.The surface area of casing 11 is increased,
Also it just increases while can enter the air inflow in casing 11, even if gas can also after having part aperture to be adsorbed the blocking of agent 8
Through substantially increasing the stability of gas bottle 5 in not blocked aperture sleeve pipe 11.
Wherein, adsorbent 8 is active carbon.
As shown in figure 3, bottle body 9 has annular gear along 13 at one end of bottle cap, bottle cap close to one end of bottle body 9 against
In annular gear along 13, locking mechanism is equipped between bottle body 9 and bottle cap.The internal diameter of bottle cap is slightly larger than the outer diameter of bottle body 9, works as bottle cap
One end when being resisted against annular gear along 13, bottle body 9 protrudes into 10cm in bottle cap close to one end of bottle cap, and the two cooperates, energy
Realize quickly positioning.
As shown in figure 3, locking mechanism include several hinged seats 14 on the bottle body 9, it is several on bottle cap with hinge
The deck 15 that joint chair 14 is arranged in a one-to-one correspondence and the screw rod 16 being hinged on hinged seat 14, several hinged seats 14 are along bottle body 9
Axis annular is uniformly distributed, and has card slot 17 on deck 15, and the lock that outer diameter is greater than 17 width of card slot is threaded on screw rod 16
Tight nut 18.Hinged seat 14 and bottle body 9 are integrally formed, and deck 15 and bottle cap are integrally formed.Screw rod 16 can be around itself and hinged seat
14 articulated shaft is swung, and shows two states: first is that card slot 17 is protruded into the free end of screw rod 16, second is that the free end of screw rod 16
It is detached from card slot 17.When the free end of screw rod 16 is protruded into card slot 17, by rotating locking nut 18, reaches and be locked at bottle cap
Purpose on bottle body 9.
As shown in figure 3, bottle cap and annular gear are equipped with sealing ring 19 between 13.Bottle cap is locked to bottle by locking mechanism
After on body 9, sealing ring 19 is pressed in bottle cap and annular gear between 13, plays sealing function.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of LNG gas station, LNG storage tank (1), LNG cryogenic pump (2) and LNG cryogenic pump including pedestal, on pedestal
(2) dispenser (3) of outlet connection and the LNG gasification device (4) being connect with LNG storage tank (1), which is characterized in that the bottom
It is additionally provided with gas bottle (5) on seat, the import of the gas bottle (5) is connected to the pressure relief opening of LNG storage tank (1) and is equipped between the two
Safety valve (6), the import of the LNG cryogenic pump (2) is with the outlet of LNG storage tank (1) and between the two equipped with triple valve
(7), one of orifice of the outlet Yu triple valve (7) of the gas bottle (5), the gas bottle (5) is interior to be filled with
The exit of adsorbent (8), the gas bottle (5) is equipped with filter structure.
2. a kind of LNG gas station according to claim 1, which is characterized in that the gas bottle (5) includes bottle body (9)
Import with the lid (10) for fastening setting with bottle body (9), the gas bottle (5) is set on bottle body (9), the gas bottle (5)
Outlet be set on lid (10), form cavity between the bottle body (9) and lid (10), above-mentioned adsorbent (8) is filled
In the cavity.
3. a kind of LNG gas station according to claim 2, which is characterized in that the filter structure includes being threaded through suction
Casing (11) in attached dose (8), the surface of described sleeve pipe (11) have one end and the gas collection of several apertures and described sleeve pipe (11)
The outlet of bottle (5), the casing (11) is interior to be filled with filter cotton (12).
4. a kind of LNG gas station according to claim 3, which is characterized in that the casing (11) is along gas bottle (5)
It is axially extending.
5. a kind of LNG gas station according to claim 1 or 2 or 3 or 4, which is characterized in that the adsorbent (8) is
Active carbon.
6. a kind of LNG gas station according to claim 2, which is characterized in that the bottle body (9) is close to one end of bottle cap
Place has annular gear along (13), and the bottle cap is resisted against annular gear on (13) close to one end of bottle body (9), the bottle body
(9) locking mechanism is equipped between bottle cap.
7. a kind of LNG gas station according to claim 6, which is characterized in that the locking mechanism includes several is set to
Hinged seat (14), several decks (15) being arranged in a one-to-one correspondence with hinged seat (14) and hinge on bottle cap on bottle body (9)
The screw rod (16) on hinged seat (14) is connect, several hinged seats (14) are uniformly distributed along the axis wire loop of bottle body (9),
There are card slot (17) on the deck (15), outer diameter is threaded on the screw rod (16) greater than card slot (17) width
Locking nut (18).
8. a kind of LNG gas station according to claim 7, which is characterized in that the bottle cap and annular gear along (13) it
Between be equipped with sealing ring (19).
Priority Applications (1)
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CN201821998763.XU CN209101004U (en) | 2018-11-30 | 2018-11-30 | A kind of LNG gas station |
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CN201821998763.XU CN209101004U (en) | 2018-11-30 | 2018-11-30 | A kind of LNG gas station |
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CN209101004U true CN209101004U (en) | 2019-07-12 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114704769A (en) * | 2022-03-22 | 2022-07-05 | 中国石油大学胜利学院 | Natural gas liquefaction storage output device |
-
2018
- 2018-11-30 CN CN201821998763.XU patent/CN209101004U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114704769A (en) * | 2022-03-22 | 2022-07-05 | 中国石油大学胜利学院 | Natural gas liquefaction storage output device |
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