CN205843430U - A kind of U-shaped shell-type liquefied natural gas gasifying device - Google Patents
A kind of U-shaped shell-type liquefied natural gas gasifying device Download PDFInfo
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- CN205843430U CN205843430U CN201620772084.5U CN201620772084U CN205843430U CN 205843430 U CN205843430 U CN 205843430U CN 201620772084 U CN201620772084 U CN 201620772084U CN 205843430 U CN205843430 U CN 205843430U
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- deflection plate
- shell
- natural gas
- liquefied natural
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Abstract
The utility model discloses a kind of U-shaped shell-type liquefied natural gas gasifying device, including U-shaped housing, two tube sheets, two bobbin carriages, two described tube sheets are separately fixed between the both ends of U-shaped housing and two bobbin carriages, one of them bobbin carriage is provided with Liquid natural gas inlet, another bobbin carriage is provided with gas outlet, heat exchanger tube is U-shaped, hole on second round deflection plate is less than the hole on the first round deflection plate, described first round deflection plate and described second round deflection plate being installed in described U-shaped housing at interval, some heat exchanger tubes are interspersed on deflection plate, the end of described heat exchanger tube is fixed on tube sheet, U-shaped housing is provided with some sea intakes and seawer outlet, sea intake is located at the side of described first round deflection plate, seawer outlet is located at the opposite side of described first round deflection plate.This gasifier takes up space, and area is little, anti-rock structure design without special, and heat exchange efficiency is high, and heat transfer effect is notable.
Description
Technical field
This utility model belongs to liquefied natural gas gasifying field, particularly relates to a kind of U-shaped shell-type liquefied natural gas gasifying device.
Background technology
Along with increasing to the demand of clean energy resource, natural gas as eco-friendly clean energy resource in energy resource structure
Proportion the most increasing, it uses more and more extensive, and the most large-scale liquefied natural gas project gets more and more, and land is big
The difficulty such as type liquefied natural gas project gradually tends to saturated, addressing are increasing.The development of large-scale liquefied natural gas project is gradually
By from the land trend developed to sea.In all of large-scale liquefied natural gas receiving station project, the most land or extra large
On, it is achieved liquefied natural gas gasifying is natural gas, and liquefied natural gas gasifying device is all one of equipment of non-the normally off key.
In existing technical scheme, liquefied natural gas gas commonly used in land liquefied natural gas receiving station project
Change device all can not be suitable in Floating Liquefied Natural Gas project, wherein the most possible liquefied natural gas gasifying device equipment master being suitable for
If intermediate medium gasifier (IFV), but existing IFV floor space is very big, designs and manufacture the most extremely complex, especially
It is that the space of carrying gasification module is very limited in Floating Liquefied Natural Gas project so that the range of IFV is by the biggest
Limitation, and need that special heat transfer intermediate medium is anti-rocks process structure, these are IFV structure and design itself cannot keep away
The factor exempted from.Because the principle of IFV is to use heating of seawater intermediate medium, then reheat liquefied natural gas by intermediate medium
It is vaporized as natural gas, actually uses the structure multiple heat exchanger package being integrated, and cannot complete fulfillment
The outlet temperature requirements of natural gas, in addition it is also necessary to natural gas superheater is as supplementary heating heat exchanger.Although IFV is by the three of split
Individual heat exchanger package is combined in one, decreases overall space and weight, but also far beyond in Floating Liquefied Natural Gas project
The scope that the confined space is utilized.It addition, intermediate medium heat exchange due in Floating Liquefied Natural Gas project rocking of hull and right
The impact of heat transfer effect is very big, needs complicated particular design to avoid intermediate medium to fluctuate to whole IFV gasifier device
The bigger reduction effect that performance produces.
Utility model content
The purpose of this utility model is to provide one and can meet in Floating Liquefied Natural Gas project limited to bearing floating body
Space layout requires to reduce again the liquefied natural gas gasifying device manufacturing and designing difficulty, which employs following technical scheme:
A kind of U-shaped shell-type liquefied natural gas gasifying device, including U-shaped housing, two tube sheets, two bobbin carriages, two described pipes
Plate is separately fixed between the both ends of described U-shaped housing and two bobbin carriages, and one of them bobbin carriage is provided with liquefied natural gas and enters
Mouthful, another bobbin carriage is provided with gas outlet；Also include some heat exchanger tubes, the first round deflection plate, the second round deflection plate,
Described heat exchanger tube is U-shaped, and the hole on the second round deflection plate is less than the hole on the first round deflection plate, described first round baffling
Plate and described second round deflection plate being installed in described U-shaped housing at interval, U-shaped housing is separated by the second round deflection plate
Becoming some relatively independent heat transfer spaces, some described heat exchanger tubes to be interspersed on deflection plate, the end of some described heat exchanger tubes is solid
Being scheduled on described tube sheet, described U-shaped housing is provided with some sea intakes and seawer outlet, and described sea intake is located at described
The side of one round deflection plate, described seawer outlet is located at the opposite side of described first round deflection plate.Each relatively independent
Heat transfer space is respectively provided with sea intake and seawer outlet.
Further, described U-shaped housing includes the first shell and the second shell, and one end of the first shell and the second shell is passed through
Non-standard flange seal part connects together, and described non-standard flange seal part is provided with arc cavity, for managing first
Shell is connected with described second shell, and described first round deflection plate and described second round deflection plate being installed at interval is described
In first shell and described second shell.
Further, the mode that the end of some described heat exchanger tubes uses welding, expanded joint or expanded and welded tube joint to combine is made with described tube sheet
Fixing connection.
Further, also include that supporting adn fixing device, described supporting adn fixing device are arranged on appointing of liquefied natural gas gasifying device
Meaning position, is fixed on carrier for liquefied natural gas gasifying device, and ensures that its any part keeps relative position.
Compared to prior art, the beneficial effects of the utility model are:
1, the most U-shaped design of liquefied natural gas gasifying device, solves and uses intermediate medium gasifier to take up room in the past
The technical problem that area is big, and the structure of U-shaped shell-type designs and leaves the free space expanded with heat and contract with cold to heat exchanger tube, solves completely
Determine the axial stress problem of heat exchanger tube of fixed tube-sheet exchanger.
2. by some seawater inlet being located at deflection plate both sides and seawer outlet so that shell side uses opposing spaced apart
Separate unit carries out heat exchange, improves heat exchange efficiency.
3, improve when using intermediate medium gasifier to carry out heat exchange in the past, the rolling of hull in Floating Liquefied Natural Gas project
The dynamic technical problem affecting heat transfer effect, heat transfer effect improves notable.
4, the hole on the second round deflection plate is less than the hole on the first round deflection plate, and the hole of the first round deflection plate is relatively
Greatly, it is allowed to sea water is in a large number by heat exchange, and the hole of the second round deflection plate is less only allows a small amount of sea water to pass through, it is to avoid in shell side
There is heat exchange stagnant wake, improve heat transfer effect.
5, make full use of the heat of sea water, solve and use intermediate medium gasifier must adopt during heat exchange in the past
By the problem of intermediate medium, simplifying flow process, improve efficiency, the equipment of greatly reducing manufactures and designs difficulty.
6, although this equipment is to develop for offshore floating type liquefied natural gas project, more can liquefied natural gas on land
Project uses.
Accompanying drawing explanation
Describe in detail more of the present utility model specifically real the most by way of example, and not by way of limitation
Execute example.Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that
These accompanying drawings are not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the overall structure schematic diagram of this utility model the first deflection plate；
Fig. 3 is the partial enlarged drawing of this utility model the first deflection plate；
Fig. 4 is the overall structure schematic diagram of this utility model the second deflection plate；
Fig. 5 is the partial enlarged drawing of this utility model the second deflection plate；
Fig. 6 is the structural representation of this utility model non-standard flange seal part.
Detailed description of the invention
As Figure 1-5, a kind of U-shaped shell-type liquefied natural gas gasifying device, including U-shaped housing, 1, two pipes of two bobbin carriages
Plate 2.Being provided with supporting adn fixing device 13 on U-shaped shell-type liquefied natural gas gasifying device, described supporting adn fixing device is arranged on liquefaction
The optional position of natural gas gasifier, on the most U-shaped housing, bobbin carriage, tube sheet, is used for facilitating liquefied natural gas gasifying device to be fixed on
On carrier, and ensure that its any part keeps relative position.Using U-shape structure, leaving because expanding with heat and contract with cold to heat exchanger tube
Free space, completely solves the stress problem of the heat exchanger tube of fixed tube-sheet exchanger.
Described U-shaped housing includes the first shell 10 and the second shell 11, and one end of the first shell and the second shell is by non-
Standard type flange seal part 12 connects together, and described non-standard flange seal part is arced tube part, and it has curved pipe
Road, for the first shell and the second shell being connected, two described tube sheets are separately fixed between two shells and two bobbin carriages.
Described supporting adn fixing device may be mounted at the first shell 10 or/and on the second shell 11.
Preferably, flange (not marking in figure) is installed between bobbin carriage and tube sheet, between tube sheet and shell, and by same
A set of bolt (not marking in figure) is attached, and is carried out even by flange and bolt between shell and non-standard flange seal part
Connect.This design makes this equipment easy disassembly, and is easy to clean and safeguard.
One of them bobbin carriage is provided with Liquid natural gas inlet 3, and another bobbin carriage is provided with gas outlet 4, also includes
Some heat exchanger tube 5, first round deflection plate the 6, second round deflection plates 7, described heat exchanger tube is U-shaped, described first round baffling
Plate and described second round deflection plate being installed in described first shell and described second shell at interval, some heat exchanger tubes are worn
Being inserted on deflection plate, the end of some described heat exchanger tubes is fixed on described tube sheet, and described shell is provided with some sea intakes 8
With seawer outlet 9, described sea intake is located at the side of described first round deflection plate, and described seawer outlet is located at described first
The opposite side of round deflection plate.Hole on second round deflection plate is less than the hole on the first round deflection plate, heat exchanger tube and baffling
Hole in plate is in concentric position, and sea water is by between heat exchanger tube and the hole of the first round deflection plate and the second round deflection plate
Annular space, between the first round deflection plate and heat exchanger tube annular space big as far as possible, can by the most sea water,
Annular space between second round deflection plate and heat exchanger tube is the least, and the most minimal amount of sea water passes through.Consequently, it is possible to phase
When shell side being separated into some relatively independent heat transfer spaces in the second round deflection plate, each heat transfer space has independent sea water
Import and export, can independently carry out heat exchange respectively, improve heat exchange efficiency, both can solve gasifier and run the problem frozen, it is possible to
With directly meet liquefied natural gas gasifying as natural gas after outlet temperature requirement.The hole of the first round deflection plate is bigger, it is allowed to
Sea water is in a large number by heat exchange, the hole of the second round deflection plate is less only allows a small amount of sea water to pass through, it is to avoid exists in shell side and changes
Hot stagnant wake.
Preferably, the end of some described heat exchanger tubes uses welding, expanded joint or expanded and welded tube joint the mode having and described tube sheet to make
Fixing connection.
Its operation principle is as follows:
The liquefied natural gas carried through liquefied natural gas gasifying device high-pressure pump (not marking in figure) is from Liquid natural gas inlet 3
Enter in bobbin carriage, then pass through tube sheet and enter in some heat exchanger tubes, after the heating that sea water pump (not marking figure) carries
Sea water be transported to seawater main (not marking in figure), by seawater main by sea water by sea intake 8 be sent to liquefy sky
So in gas gasifier, sea water is flowed into the opposite side of the first round deflection plate from the side of the first round deflection plate, at certain shell
Carrying out heat exchange with the liquefied natural gas in heat exchanger tube in journey, the sea water after supercooling is discharged from seawer outlet 9.In this process
In, it is achieved that liquefied natural gas to the conversion of sky steam, sky steam, through tube sheet, bobbin carriage, exports from sky heat outlet 4, defeated
Deliver to downstream line.
So far, although those skilled in the art will appreciate that the most detailed illustrate and describe of the present utility model many
Individual exemplary embodiment, but, in the case of without departing from this utility model spirit and scope, still can be public according to this utility model
The content opened directly determines or derives other variations or modifications of many meeting this utility model principle.Therefore, this practicality is new
The scope of type is it is understood that and regard as covering other variations or modifications all these.
Claims (4)
1. a U-shaped shell-type liquefied natural gas gasifying device, it is characterised in that: include U-shaped housing, two tube sheets, two bobbin carriages, two
Individual described tube sheet is separately fixed between the both ends of described U-shaped housing and two bobbin carriages, and one of them bobbin carriage is provided with liquefaction
Imported gas, another bobbin carriage is provided with gas outlet；Also include some heat exchanger tubes, the first round deflection plate, the second circle
Type deflection plate, described heat exchanger tube is U-shaped, the hole on the second round deflection plate less than the hole on the first round deflection plate, described the
One round deflection plate and described second round deflection plate being installed in described U-shaped housing at interval, some described heat exchanger tubes are worn
Being inserted on deflection plate, the end of some described heat exchanger tubes is fixed on described tube sheet, and described U-shaped housing is provided with some sea water and enters
Mouthful and seawer outlet, described sea intake is located at the side of described first round deflection plate, and described seawer outlet is located at described the
The opposite side of one round deflection plate.
U-shaped shell-type liquefied natural gas gasifying device the most as claimed in claim 1, it is characterised in that: described U-shaped housing includes first
Shell and the second shell, one end of the first shell and the second shell is connected together by non-standard flange seal part, described
Non-standard flange seal part is provided with arc cavity, for being connected with described second shell by the first shell, described first round
Deflection plate and described second round deflection plate being installed in described first shell and described second shell at interval.
U-shaped shell-type liquefied natural gas gasifying device the most as claimed in claim 1, it is characterised in that: the end of some described heat exchanger tubes
The mode that portion uses welding, expanded joint or expanded and welded tube joint to combine makees fixing connection with described tube sheet.
U-shaped shell-type liquefied natural gas gasifying device the most as claimed in claim 1, it is characterised in that: also include being arranged on U-shaped shell-type
Supporting adn fixing device on liquefied natural gas gasifying device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620772084.5U CN205843430U (en) | 2016-07-21 | 2016-07-21 | A kind of U-shaped shell-type liquefied natural gas gasifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620772084.5U CN205843430U (en) | 2016-07-21 | 2016-07-21 | A kind of U-shaped shell-type liquefied natural gas gasifying device |
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| Publication Number | Publication Date |
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| CN205843430U true CN205843430U (en) | 2016-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017150A (en) * | 2016-07-21 | 2016-10-12 | 黄志钊 | U-shaped shell type liquefied natural gas gasifier |
-
2016
- 2016-07-21 CN CN201620772084.5U patent/CN205843430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017150A (en) * | 2016-07-21 | 2016-10-12 | 黄志钊 | U-shaped shell type liquefied natural gas gasifier |
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