CN206001264U - Vertical LNG filling apparatus - Google Patents
Vertical LNG filling apparatus Download PDFInfo
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- CN206001264U CN206001264U CN201620946291.8U CN201620946291U CN206001264U CN 206001264 U CN206001264 U CN 206001264U CN 201620946291 U CN201620946291 U CN 201620946291U CN 206001264 U CN206001264 U CN 206001264U
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- lng
- filling apparatus
- operating room
- phase interface
- vertical
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Abstract
A kind of vertical LNG filling apparatus, including working cylinder, it is provided with operating room inside described working cylinder, described work interior is provided with piston component, described piston component is connected with the straight line driving mechanism driving piston component motion, and described working cylinder is provided with for the first liquid phase interface that LNG inputs described operating room, the second liquid phase interface being used for exporting LNG from described operating room, is used for the gas phase interface that exports BOG from described operating room.
Description
Technical field
This utility model belongs to technical field of LNG, specifically, is a kind of vertical LNG filling apparatus.
Background technology
LNG (Liquefied Natural Gas), i.e. liquefied natural gas, is by gaseous natural air cooling at ambient pressure
But to -162 DEG C, it is allowed to the liquid condensing.LNG main component is methane, has that colorless and odorless is nontoxic, small volume, quality
Light the advantages of, and heat energy value height, combustion product environment are clean.Because LNG is a kind of energy of high-efficiency environment friendly, it is increasingly subject to
The favor of people, range is increasingly extensive.
In order to easily provide LNG, LNG gas station construction demand increasingly increases.LNG gas station needs by filing provision
Extract the LNG in storage tank, carry out filling after it is pressurizeed and fill.Because LNG temperature is very low, so that using special filling
Equipment.
Low temperature immersed pump is a kind of high-speed centrifugal liquid pump, can normally use under cryogenic, thus be commonly used as
The filing provision of LNG gas station.However, low temperature immersed pump be easily damaged, not easy-maintaining, and complex structure, energy consumption is also very high, makes
Become manufacture and the working service cost of low temperature immersed pump all very high.This brings very big burden, to LNG to LNG gas station
Construction carry out define inhibition.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of vertical LNG filling apparatus, is a kind of structure
Simply, LNG filing provision with low cost.
The purpose of this utility model is achieved through the following technical solutions：
A kind of vertical LNG filling apparatus, including working cylinder, are provided with operating room inside described working cylinder, described work
Interior is provided with piston component, and described piston component is connected with the straight line driving mechanism driving piston component motion, described working cylinder
Body is provided with for LNG inputs the first liquid phase interface of described operating room, be used for exporting LNG from described operating room second
Liquid phase interface, the gas phase interface for exporting BOG from described operating room.
As the improvement of technique scheme, described working cylinder is externally provided with heat-insulation and heat-preservation assembly.
As the improvement further of technique scheme, described working cylinder is provided with black box.
As the improvement further of technique scheme, described straight line driving mechanism includes mechanism rack, hydraulic cylinder, described
Mechanism rack is connected with described working cylinder, described hydraulic cylinder respectively, and described hydraulic cylinder is connected with described piston component.
As the improvement further of technique scheme, described first liquid phase interface is provided with the first check valve, and described
The head piece that goes out of one check valve is connected with described operating room.
As the improvement further of technique scheme, described second liquid phase interface is provided with the second check valve, and described
The head piece that enters of two check valves is connected with described operating room.
As the improvement further of technique scheme, the vertical position of described gas phase interface connects higher than described first liquid phase
Mouth, described second liquid phase interface.
As the improvement further of technique scheme, described working cylinder is provided with deafener.
As the improvement further of technique scheme, described working cylinder is provided with flow control valve.
As the improvement further of technique scheme, outside described vertical LNG filling apparatus, it is additionally provided with protection shell.
The beneficial effects of the utility model are：By arranging working cylinder and piston component, piston component is in working cylinder
Work interior make straight reciprocating motion, change the indoor pressure of work it is achieved that the extraction of LNG and filling, structure simply may be used
Lean on, component few, manufacture very cheap with maintenance cost.
For enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Accompanying drawing appended by cooperation, is described in detail below.
Brief description
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to use required in embodiment
Accompanying drawing be briefly described it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the entirety of the vertical LNG filling apparatus that this utility model embodiment 1 provides to sectional view；
Fig. 2 is the gas-liquid road connection figure of the vertical LNG filling apparatus that this utility model embodiment 1 provides.
Main element symbol description：
1000- vertical LNG filling apparatus, 100- working cylinder, 110- operating room, 120- the first liquid phase interface, 130-
Two liquid phase interfaces, 140- gas phase interface, 200- piston component, 300- straight line driving mechanism, 310- mechanism rack, 320- hydraulic pressure
Cylinder, 400- heat-insulation and heat-preservation assembly, 500- black box, 600- first check valve, 700- second check valve, 2000-LNG storage tank,
3000- liquid filler.
Specific embodiment
For the ease of understanding this utility model, carry out more comprehensively below with reference to relevant drawings vertical LNG filling apparatus
Description.The preferred embodiment of vertical LNG filling apparatus is given in accompanying drawing.But, vertical LNG filling apparatus can be by being permitted
How different forms is realizing however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments to be to make
The disclosure of vertical LNG filling apparatus is more thoroughly comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when,
There is not intermediary element.Term as used herein " vertical ", " level ", "left", "right" and similar statement are
For illustrative purposes.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.Herein in the term used in the description of vertical LNG filling apparatus
It is intended merely to describe the purpose of specific embodiment it is not intended that limiting this utility model.Term as used herein " and/or "
Arbitrary and all of combination including one or more related Listed Items.
Embodiment 1
Refer to Fig. 1, vertical LNG filling apparatus 1000 include working cylinder 100, are provided with work inside working cylinder 100
Room 110, is provided with piston component 200 in operating room 110, piston component 200 is connected with and drives the straight line of piston component 200 motion to drive
Motivation structure 300.
Operating room 110 is the command module of vertical LNG filling apparatus 1000.Piston component 200 is in operating room 110
Make straight reciprocating motion, extraction and the filling of LNG is realized by the pressure change in operating room 110.
Working cylinder 100 be provided with for by the first liquid phase interface 120 of LNG input service room 110, be used for by LNG from
The second liquid phase interface 130 of operating room 110 output, the gas phase interface 140 for exporting BOG from operating room 110.So-called BOG
(Boil Off Gas), is also called flashed vapour, refers to the gas of LNG evaporation.
Further, in order to improve the effect of gas-liquid separation in operating room 110, the vertical position of gas phase interface 140 is higher than
First liquid phase interface 120, second liquid phase interface 130.Because density is different, BOG is located above LNG, and BOG is with piston component
200 rise and enter gas phase interface 140, and LNG then flows to second liquid phase interface 130.
Further, in one embodiment, the first liquid phase interface 120 is rigidly straight located at working cylinder 100 bottom
Pipe, is connected with operating room 110 by the connecting hole positioned at bottom centre of operating room 110.Second liquid phase interface 130 is located at work
The rigid straight pipe of cylinder body 100 bottom, is connected with operating room 110 by the connecting hole positioned at bottom centre of operating room 110.Gas phase connects
Mouth 140 is the rigid straight pipe located at working cylinder 100 top side wall.
Further, in another embodiment, the first liquid phase interface 120 is located at work with second liquid phase interface 130
The two ends port of the same rigid straight pipe of cylinder body 100 bottom.It is provided with opening, by positioned at operating room 110 in the middle part of this rigid straight pipe
The connecting hole of bottom centre is connected with operating room 110.Further, the aperture phase of the internal diameter of this rigid straight pipe and described connecting hole
Deng making flowing in working cylinder 100 for the LNG smooth steadily.
Because the temperature of LNG is very low, can gasify under heating status, make to be filled into the LNG weight of liquid filler 3000
Decline to a great extent, and then affect the efficiency of vertical LNG filling apparatus 1000.For this reason, working cylinder 100 is externally provided with heat-insulation and heat-preservation assembly
400.Heat-insulation and heat-preservation assembly 400 can completely cut off working cylinder 100 and extraneous conduction of heat, makes operating room 110, the first liquid phase interface
120th, second liquid phase interface 130, the temperature of gas phase interface 140 keep constant low temperature, it is to avoid the gasification of LNG.
Working cylinder 100 is provided with black box 500.Black box 500 is used for ensureing that the sealing of operating room 110 is good
Good, it is to avoid to occur LNG leakage to cause damage, also avoid the interference of outer bound pair operating room 110 to pollute simultaneously.In present embodiment
In, black box 500 is telescopic sealing member, can with the motion of piston component 200 telescopic variation it is ensured that sealing effectiveness
Well.
Straight line driving mechanism 300 includes mechanism rack 310, hydraulic cylinder 320, mechanism rack 310 respectively with working cylinder
100th, hydraulic cylinder 320 connects, and so that hydraulic cylinder 320 is securely fixed, and prevents from rocking or vibration interference.
Hydraulic cylinder 320 is connected with piston component 200.Hydraulic cylinder 320 be hydraulic energy is changed into mechanical energy, to do straight line past
The hydraulic actuator of multiple motion, can drive piston component 200 to do straight reciprocating motion in operating room 110, be vertical LNG
The operating of filling apparatus 1000 provides stable power source.Meanwhile, by controlling the movement velocity of straight line driving mechanism 300, that is,
Can control the flow of vertical LNG filling apparatus 1000.
In another embodiment, straight line driving mechanism 300 can also be made up of pneumatic cylinder.Pneumatic cylinder and piston component
200 connections, realize the straight reciprocating motion of piston component 200 by the driving of compressed gas.
In another embodiment, straight line driving mechanism 300 can also be realized by other forms such as toggles, and
It is not limited to form provided above.
Refer to Fig. 2, the first liquid phase interface 120 is connected with the liquid phase mouth of LNG storage tank 2000, for will be from LNG storage tank
2000 LNG input service room 110.In order to prevent LNG adverse current from pipeline and LNG storage tank 2000 are impacted, the first liquid phase connects
Mouth 120 is provided with the first check valve 600, and the head piece that goes out of the first check valve 600 is connected with operating room 110.
When the pressure of LNG storage tank 2000 is more than the pressure of operating room 110, the first check valve 600 is opened, and LNG stores up from LNG
Tank 2000 flows into operating room 110；When the pressure of LNG storage tank 2000 is less than the pressure of operating room 110, the first check valve 600 closes
Close, stop LNG stream between LNG storage tank 2000 and operating room 110 and move, it is to avoid LNG backflow phenomena occurs.
Second liquid phase interface 130 is connected with liquid filler 3000, for the LNG of operating room 110 is inputted liquid filler 3000.For
Prevent the LNG adverse current from pipeline and LNG storage tank 2000 are impacted, second liquid phase interface 130 is provided with the second check valve 700,
The head piece that enters of the second check valve 700 is connected with operating room 110.
When the pressure of operating room 110 is more than the pressure of liquid filler 3000, the second check valve 700 is opened, and LNG is from operating room
110 inflow liquid fillers 3000；When the pressure of operating room 110 is less than the pressure of liquid filler 3000, the second check valve 700 is closed,
Stop LNG stream between operating room 110 and liquid filler 3000 to move, it is to avoid LNG backflow phenomena occurs.
In order to ensure the work efficiency of vertical LNG filling apparatus 1000, need LNG storage tank 2000 and operating room 110 it
Between keep enough pressure differentials, enable LNG to quickly enter operating room 110.Meanwhile, need to ensure that piston component 200 has foot
Enough speed, so that the process extracting LNG is rapid.
LNG storage tank 2000 internal temperature is relatively low, about -160 DEG C, because natural evaporation can produce BOG.Work as LNG storage tank
2000 when being connected with vertical LNG filling apparatus 1000, and LNG stream enters operating room 110 by the road, causes liquid in LNG storage tank 2000
Position declines, and Simultaneous Pressure reduces.Meanwhile, the gas-phase space of BOG increases, and air pressure declines, and so that levels pressure is reduced further.
LNG in inflow operating room 110 is heated and also can produce part BOG.Increased BOG makes the pressure in operating room 110
Increase, in the case that the pressure of LNG storage tank 2000 is constant, will result in the pressure differential of the two and reduce, the transmission speed shape to LNG
Become inhibition.Meanwhile, BOG also can form inhibition to the movement velocity of piston component 200, hinders vertical LNG further
The efficiency of filling apparatus 1000 plays.
In order to solve the above problems, gas phase interface 140 is connected with the gas phase mouth of LNG storage tank 2000, for inputting BOG
LNG storage tank 2000.After BOG returns LNG storage tank 2000, because gas phase forms the change of structure, the levels pressure in operating room 110
Decline, the levels pressure of LNG storage tank 2000 raises, and is effectively guaranteed required pressure reduction.Moreover it is possible to avoid BOG to be stranded in work
Make room,
Further, in another embodiment, working cylinder 100 is additionally provided with deafener.Deafener is used for eliminating vertical
The noise sending in formula LNG filling apparatus 1000 work process, makes the peace and quiet environmental protection of LNG filling process.In another embodiment,
Gas phase interface 140 is provided with gas circuit deafener, it is to avoid the pneumatic noise that BOG produces when flowing out from gas phase interface 140.
Further, in another embodiment, working cylinder 100 is additionally provided with flow control valve.Flow control valve is used
In the LNG stream amount controlling working cylinder 100 and BOG flow, the flow of vertical LNG filling apparatus 1000 is made to be controlled.
Further, in another embodiment, it is additionally provided with protection shell outside vertical LNG filling apparatus 1000, be vertical
Each part of formula LNG filling apparatus 1000 provides good protection, it is to avoid extraneous interference and infringement.
The work process of vertical LNG filling apparatus 1000 is briefly described below, LNG and filling LNG two is extracted in main inclusion
The individual stage.
Extracting the LNG stage, straight line driving mechanism 300 drives piston component 200 to move upwards, is gradually distance from the first liquid phase
Interface 120.Now, in operating room 110, gas-phase space increases, and pressure constantly declines.Due to the first check valve 600 go out head piece with
Operating room 110 connects, and the pressure going out head piece of the first check valve 600 declines therewith.
Meanwhile, piston component 200 oppresses the gas in operating room 110 upwards, makes gas pressure reach the 3rd check valve 800
Startup pressure.3rd check valve 800 is opened, and BOG returns in LNG storage tank 2000 through gas phase interface.Now in LNG storage tank 2000
BOG increase, so that the levels pressure in LNG storage tank 2000 is increased.The head piece that enters of the first check valve 600 is connected with LNG storage tank 2000
Connect, the pressure entering head piece of the first check valve 600 increases therewith.
Under shifting, the entering head piece and be gradually increased with the pressure reduction going out head piece of the first check valve 600.When this pressure reduction reaches
During the startup pressure value of the first check valve 600, the first check valve 600 is opened.LNG flows out from LNG storage tank 2000, through the first liquid phase
Interface 120 and enter in operating room 110, so that the liquid level of operating room 110 is gradually risen.
Liquid level with operating room 110 constantly rises, and the pressure of operating room 110 is gradually increased, the going out of the first check valve 600
The pressure of head piece increases therewith.Meanwhile, the liquid level in LNG storage tank 2000 declines.Gas-phase space in LNG storage tank 2000 increases,
And the BOG entering LNG storage tank 2000 constantly reduces.Liquid level pressure under the dual function of liquid level and BOG, in LNG storage tank 2000
Power is gradually reduced.
Therefore, the entering head piece and be gradually reduced with the pressure reduction going out head piece of the first check valve 600.When this pressure reduction is unidirectional less than first
During the startup pressure value of valve 600, the first check valve 600 is closed.LNG is no longer flow into operating room 110, and operating room 110 reaches and is full of
State.Then, vertical LNG filling apparatus 1000 proceed to the filling LNG stage.
In the filling LNG stage, straight line driving mechanism 300 drives piston component 200 to move downward.Piston component 200 is oppressed
LNG in operating room 110, makes the levels pressure of operating room 110 increase rapidly.Head piece and work entered due to the second check valve 700
Make room 110 to connect, the pressure entering head piece of the second check valve 700 increases therewith.
The head piece that goes out of the second check valve 700 is connected with liquid filler 3000, does not occur significantly to become in the pressure of liquid filler 3000
In the case of change, the pressure going out head piece of the second check valve 700 does not have significant change.Therefore, the second check valve 700 enter head piece
And the pressure reduction going out between head piece is gradually increased.
When this pressure reduction reaches the startup pressure value of the second check valve 700, the second check valve 700 is opened.LNG is from operating room
110 outflows, through the second check valve 700 enter head piece with go out head piece, second liquid phase interface 130 and complete through liquid filler 3000 plus
Note.
In the presence of piston component 200, LNG continues to flow out from operating room 110.The liquid level of operating room 110 constantly declines,
Levels pressure in operating room 110 is gradually reduced, and the pressure entering head piece of the second check valve 700 reduces therewith.Meanwhile, second is single
Entering head piece and be gradually reduced with the pressure reduction going out head piece to valve 700.
When this pressure reduction is less than the startup pressure value of the second check valve 700, the second check valve 700 is closed.LNG is no longer from work
Make room 110 to flow out, vertical LNG filling apparatus 1000 proceed to the extraction LNG stage.
Extracting the LNG stage, it is unidirectional that the pressure reduction entering head piece and going out between head piece of the second check valve 700 is consistently less than second
The startup pressure value of valve 700, therefore the second check valve 700 remains closed mode.
In the filling LNG stage, it is unidirectional that the pressure reduction entering head piece and going out between head piece of the first check valve 600 is consistently less than first
The startup pressure value of valve 600, therefore the first check valve 600 remains closed mode.
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, and not
It is as restriction, therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
Embodiment described above only have expressed several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that it is common for this area
For technical staff, without departing from the concept of the premise utility, some deformation can also be made and improve, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (10)
1. a kind of vertical LNG filling apparatus, including working cylinder it is characterised in that being provided with operating room inside described working cylinder,
Described work interior is provided with piston component, and described piston component is connected with the straight line driving mechanism driving piston component motion, institute
State working cylinder be provided with for LNG (Liquefied Natural Gas) is inputted described operating room the first liquid phase interface,
For LNG is exported from described operating room second liquid phase interface, being used for will be defeated from described operating room for BOG (Boil Off Gas)
The gas phase interface going out.
2. vertical LNG filling apparatus according to claim 1 are it is characterised in that described working cylinder is externally provided with heat-insulated guarantor
Warm assembly.
3. vertical LNG filling apparatus according to claim 1 are it is characterised in that described working cylinder is provided with sealing group
Part.
4. vertical LNG filling apparatus according to claim 1 are it is characterised in that described straight line driving mechanism includes mechanism
Support, hydraulic cylinder, described mechanism rack is connected with described working cylinder, described hydraulic cylinder respectively, described hydraulic cylinder and described work
Plug assembly connects.
5. vertical LNG filling apparatus according to claim 1 are it is characterised in that described first liquid phase interface is provided with
One check valve, the head piece that goes out of described first check valve is connected with described operating room.
6. vertical LNG filling apparatus according to claim 1 are it is characterised in that described second liquid phase interface is provided with
Two check valves, the head piece that enters of described second check valve is connected with described operating room.
7. vertical LNG filling apparatus according to claim 1 are it is characterised in that the vertical position of described gas phase interface is high
In described first liquid phase interface, described second liquid phase interface.
8. vertical LNG filling apparatus according to claim 1 are it is characterised in that described working cylinder is provided with deafener.
9. vertical LNG filling apparatus according to claim 1 are it is characterised in that described working cylinder is provided with flow control
Valve processed.
10. vertical LNG filling apparatus according to claim 1 are it is characterised in that outside described vertical LNG filling apparatus
It is additionally provided with protection shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946291.8U CN206001264U (en) | 2016-08-25 | 2016-08-25 | Vertical LNG filling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946291.8U CN206001264U (en) | 2016-08-25 | 2016-08-25 | Vertical LNG filling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206001264U true CN206001264U (en) | 2017-03-08 |
Family
ID=58197110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620946291.8U Active CN206001264U (en) | 2016-08-25 | 2016-08-25 | Vertical LNG filling apparatus |
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| CN (1) | CN206001264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035946A1 (en) * | 2016-08-25 | 2018-03-01 | 自贡通达机器制造有限公司 | Vertical lng fueling apparatus |
-
2016
- 2016-08-25 CN CN201620946291.8U patent/CN206001264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035946A1 (en) * | 2016-08-25 | 2018-03-01 | 自贡通达机器制造有限公司 | Vertical lng fueling apparatus |
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