CN208090306U - A kind of LNG storage tank BOG gas concentration units - Google Patents

A kind of LNG storage tank BOG gas concentration units Download PDF

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Publication number
CN208090306U
CN208090306U CN201820313532.4U CN201820313532U CN208090306U CN 208090306 U CN208090306 U CN 208090306U CN 201820313532 U CN201820313532 U CN 201820313532U CN 208090306 U CN208090306 U CN 208090306U
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recycling
cooling
fixed
storage tank
holder
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武利军
陈栋
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Sanmenxia Zhongyu Gas Co Ltd
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Sanmenxia Zhongyu Gas Co Ltd
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Abstract

The utility model discloses a kind of LNG storage tank BOG gas concentration units, including recycling can and holder, recycling can is fixedly installed on the top of holder, it is fixed with cricoid mounting plate in the upper end position of recycling pot sidewall, cooling pipe component is fixed between mounting plate and rack upper surface, the input end of cooling pipe component is connect with the air inlet and cooling liquid inlet being fixed at surface on a mounting board, the periphery of cooling pipe component is equipped with the isolated column for being fixed on rack upper surface, several groups cooling fan is uniformly inlaid on isolated column, it is fixed with the gas outlet of inleakage on the top of recycling can, it is equipped with liquid return hole in the bottom of recycling can, safety-valve is equipped on liquid return hole.The utility model is simple in structure, easy to use, efficiently can carry out cooling treatment to it in the removal process to BOG gases so that organic efficiency is more preferable, better, the utility model simple operation, highly practical, convenient for promoting the use of.

Description

A kind of LNG storage tank BOG gas concentration units
Technical field
The utility model is related to BOG gas recovery unit technical fields, specially a kind of LNG storage tank BOG gases recycling dress It sets.
Background technology
Natural gas is fuel gas naturally mined in gas field, and main component is made of methane.Liquefied natural gas (LNG, Liquefied Natural Gas) is to be cooled to -162 DEG C by gaseous natural gas (BOG) under normal pressure, is made Condense into liquid.Storage and transportation space can be greatlyd save after natural gas liquefaction, and has the characteristics that calorific value is big, performance is high.
Natural gas is more and more favored as clean energy resource, and LNG is all classified as preferred fuels, natural gas by many countries Ratio in energy supply increases sharply.Liquefied natural gas just with every year about 12% rapid growth, becomes the whole world and increases most One of swift and violent energy industry.The production and trade of whole world LNG becomes more and more active in recent years, and LNG has become rare cleaning money Source is becoming the new hot spot of world's oil and gas industry.
In LNG productions, filling, storing process, it is required to the storage tank using LNG.Storage tank stores liquified natural gas (LNG) after, for tank body temperature generally at -139 DEG C~-165 DEG C or so, temperature is higher, liquified natural gas (LNG) gasification Amount at gaseous natural gas (BOG) is bigger, and BOG is accumulated in that the amount in storage tank is bigger, and the pressure in storage tank is higher, reaches storage When tank sets pressure, it is necessary to be vented.It is no that it will cause safety accidents.
If being directly expelled directly out BOG gases, the waste of resource can be not only caused in this way, it but will generation environment dirt How dye, so needing extra BOG carrying out recycling use, when being recycled to BOG, realize its quick cooling liquid It is a urgent problem to be solved, the utility model provides a kind of new retracting device, to reach cooling recycling faster Purpose.
Utility model content
The purpose of this utility model is to provide a kind of LNG storage tank BOG gas concentration units, to solve above-mentioned background technology The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions:A kind of LNG storage tank BOG gas concentration units, Including recycling can and holder, the recycling can is fixedly installed on the top of holder, solid in the upper end position of the recycling pot sidewall Surely it is equipped with cricoid mounting plate, cooling pipe component, the cooling tube are fixed between the mounting plate and rack upper surface The input end of component is connect with the air inlet and cooling liquid inlet being fixed at surface on a mounting board, the cooling pipe component Periphery be equipped with and be fixed on the isolated column of rack upper surface, several groups cooling fan is uniformly inlaid on the isolated column, The top of the recycling can is fixed with the gas outlet of inleakage, liquid return hole is equipped in the bottom of the recycling can, described Liquid return hole is equipped with safety-valve.
As a kind of optimal technical scheme of the utility model, the cooling pipe component is in S between mounting plate and holder The winding arrangement of shape is equipped with the inlet led to inside recycling can in the bottommost of each S-shaped inflection point.
As a kind of optimal technical scheme of the utility model, the cooling pipe component includes inner and outer tubes, described interior Pipe is set to the inside of outer tube, and the coolant liquid circulation spiraled and be fixed on outer wall of inner tube is equipped between said inner tube and outer tube The head end of pipe, the coolant liquid runner pipe is equipped with connector, and the connector is fixedly connected with cooling liquid inlet, said inner tube Input end is fixedly connected with air inlet.
As a kind of optimal technical scheme of the utility model, several groups are uniformly offered on the side wall of the outer tube and are dissipated Heat seam.
As a kind of optimal technical scheme of the utility model, the inwardly directed recycling of the blowing direction of the cooling fan Tank.
Compared with prior art, the utility model has the beneficial effects that:For extra BOG in LNG storage tank in traditional technology Its cooling of the recycling of gas is a problem, and the utility model, will in the cooling pipe component of the periphery setting S-shaped complications of recycling can BOG gases are passed through among inner tube, and the coolant liquid runner pipe between inner tube and outer tube can quickly be cooled down gas, this On the one hand the structure of sample extends the cooling time so that cooling liquid is more thorough, while in the rotation setting of inner tube peripheral tray Coolant liquid runner pipe can carry out most effective cooling to the BOG gases in pipe, ensure effect, and in the outer of cooling pipe component It enclosing and is additionally provided with cooling fan, preliminary heat dissipation can be carried out to the pipeline of concentration, heat is avoided to concentrate, the utility model is simple in structure, It is easy to use, can cooling treatment efficiently be carried out to it in the removal process to BOG gases so that organic efficiency is more preferable, effect More preferably, the utility model simple operation is highly practical, convenient for promoting the use of for fruit.
Description of the drawings
Fig. 1 is the utility model overall structure diagram;
Fig. 2 is the utility model partial structural diagram;
Fig. 3 is the utility model partial structural diagram;
Fig. 4 is the utility model cooling pipe component structural schematic diagram;
Fig. 5 is the utility model cooling pipe component outer tube structure schematic diagram;
In figure:1- recycling cans, 2- holders, 3- mounting plates, 4- cooling pipe components, 5- isolated columns, 6- cooling fans, 7- outlets Mouth, 8- liquid return holes, 9- air inlets, 10- cooling liquid inlets, 11- safety-valves, 12- inlets, 41- inner tubes, 42- outer tubes, 43- Coolant liquid runner pipe, 44- connectors, 421- heat dissipation seams.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 to Fig.3, the utility model provides a kind of technical solution:A kind of LNG storage tank BOG gas concentration units, Including recycling can 1 and holder 2, recycling can 1 is fixedly installed on the top of holder 2, is set in the upper end position fixation of 1 side wall of recycling can Have cricoid mounting plate 3, be fixed with cooling pipe component 4 between 2 upper surface of mounting plate 3 and holder, cooling pipe component 4 into Mouth end is connect with the air inlet 9 and cooling liquid inlet 10 being fixed at 3 upper surface of mounting plate, the periphery of cooling pipe component 4 Equipped with the isolated column 5 for being fixed on 2 upper surface of holder, several groups cooling fan 6 is uniformly inlaid on isolated column 5, in recycling can 1 Top be fixed with the gas outlet 7 of inleakage, be equipped with liquid return hole 8 in the bottom of recycling can 1, peace be equipped on liquid return hole 8 Full valve door 11 at this time passes through coolant liquid among BOG gases extra in LNG storage tank are passed through cooling pipe component 4 through air inlet 9 Cooling liquid inlet 10 is also passed among cooling pipe component 4, and BOG gases carry out cooling liquid in cooling pipe component 4, due to cooling The S-shaped winding arrangement between mounting plate 3 and holder 2 of tube assembly 4 is equipped in the bottommost of each S-shaped inflection point and leads to back Inlet 12 inside closed cans 1 can extend the cooling time of gas, while will not occupy larger space in this way, after liquefaction Gas can flowed into closest in inlet 12 in recycling can 1, and pressure that at this time should be in regulation pipe is allowed to be greater than cooling tube Air pressure inside component 4, and the isolated column 5 in outside setting plays the role of isolating and protecting, while the cooling on isolated column 5 Fan 6 can radiate to the pipeline of concentration, and heat is avoided to concentrate, and the recycling can 1 that the blowing direction of cooling fan 6 is inwardly directed, Inwardly blowing does not interfere with the work of surrounding people, and the utility model is whole more easy to operate, simple in structure convenient for control.
Incorporated by reference to Fig. 4, cooling pipe component 4 includes inner tube 41 and outer tube 42, and inner tube 41 is set to the inside of outer tube 42, inside The coolant liquid runner pipe 43 being fixed on 41 outer wall of inner tube that spirals, the head of coolant liquid runner pipe 43 are equipped between pipe 41 and outer tube 42 End is equipped with connector 44, and connector 44 is fixedly connected with cooling liquid inlet 10, and the input end of inner tube 41 is fixed with air inlet 9 to be connected Connect, inner tube 41 inverted position turn setting coolant liquid runner pipe 43 can maximal efficiency play cooling effect, in combination with Fig. 5, Several groups heat dissipation seam 421 is uniformly offered on the side wall of outer tube 42, convenient for cooling fan 6 to internal inner tube 41 and cooling liquid stream Siphunculus 43 is cooled down, and control is facilitated.
For the recycling of extra BOG gases in LNG storage tank, its cooling is a problem in traditional technology, and the utility model exists The cooling pipe component of the periphery setting S-shaped complications of recycling can, among BOG gases are passed through inner tube, between inner tube and outer tube Coolant liquid runner pipe can quickly be cooled down gas, on the one hand such structure extends the cooling time so that cooling Liquefaction is more thorough, while in the coolant liquid runner pipe of inner tube peripheral tray rotation setting, can be carried out to the BOG gases in pipe most effective Cooling, ensure effect, and be additionally provided with cooling fan in the periphery of cooling pipe component, preliminary dissipate can be carried out to the pipeline of concentration Heat avoids heat from concentrating.
The utility model is simple in structure, easy to use, can efficiently be carried out to it in the removal process to BOG gases cold But it handles so that organic efficiency is more preferable, better, the utility model simple operation, highly practical, convenient for promoting the use of.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of LNG storage tank BOG gas concentration units, including recycling can(1)And holder(2), it is characterised in that:The recycling can (1)It is fixedly installed on holder(2)Top, in the recycling can(1)The upper end position of side wall is fixed with cricoid mounting plate (3), in the mounting plate(3)With holder(2)Cooling pipe component is fixed between upper surface(4), the cooling pipe component(4) Input end and be fixed in mounting plate(3)Air inlet at upper surface(9)And cooling liquid inlet(10)Connection, the cooling Tube assembly(4)Periphery be equipped be fixed on holder(2)The isolated column of upper surface(5), in the isolated column(5)On uniformly inlay There is several groups cooling fan(6), in the recycling can(1)Top be fixed with the gas outlet of inleakage(7), in the recycling Tank(1)Bottom be equipped with liquid return hole(8), in the liquid return hole(8)It is equipped with safety-valve(11).
2. a kind of LNG storage tank BOG gas concentration units according to claim 1, it is characterised in that:The cooling pipe component (4)In mounting plate(3)With holder(2)Between S-shaped winding arrangement, each S-shaped inflection point bottommost be equipped with lead to back Closed cans(1)Internal inlet(12).
3. a kind of LNG storage tank BOG gas concentration units according to claim 1, it is characterised in that:The cooling pipe component (4)Including inner tube(41)And outer tube(42), said inner tube(41)It is set to outer tube(42)Inside, in said inner tube(41)With it is outer Pipe(42)Between be equipped with and spiral and be fixed on inner tube(41)Coolant liquid runner pipe on outer wall(43), the coolant liquid runner pipe(43) Head end be equipped with connector(44), the connector(44)With cooling liquid inlet(10)It is fixedly connected, said inner tube(41)Into Mouth end and air inlet(9)It is fixedly connected.
4. a kind of LNG storage tank BOG gas concentration units according to claim 3, it is characterised in that:The outer tube(42)'s Several groups heat dissipation seam is uniformly offered on side wall(421).
5. a kind of LNG storage tank BOG gas concentration units according to claim 1, it is characterised in that:The cooling fan(6) The inwardly directed recycling can of blowing direction(1).
CN201820313532.4U 2018-03-07 2018-03-07 A kind of LNG storage tank BOG gas concentration units Active CN208090306U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820313532.4U CN208090306U (en) 2018-03-07 2018-03-07 A kind of LNG storage tank BOG gas concentration units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820313532.4U CN208090306U (en) 2018-03-07 2018-03-07 A kind of LNG storage tank BOG gas concentration units

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375190A (en) * 2019-08-14 2019-10-25 浙江海洋大学 A kind of heat preservation cold-keeping device for LNG storage tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375190A (en) * 2019-08-14 2019-10-25 浙江海洋大学 A kind of heat preservation cold-keeping device for LNG storage tank

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