CN106017150A - U-shaped shell type liquefied natural gas gasifier - Google Patents
U-shaped shell type liquefied natural gas gasifier Download PDFInfo
- Publication number
- CN106017150A CN106017150A CN201610577889.9A CN201610577889A CN106017150A CN 106017150 A CN106017150 A CN 106017150A CN 201610577889 A CN201610577889 A CN 201610577889A CN 106017150 A CN106017150 A CN 106017150A
- Authority
- CN
- China
- Prior art keywords
- shell
- natural gas
- deflection plate
- liquefied natural
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 50
- 239000007789 gas Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000013535 sea water Substances 0.000 abstract description 22
- 238000013461 design Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 238000012546 transfer Methods 0.000 description 8
- 239000003345 natural gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0064—Vaporizers, e.g. evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a U-shaped shell type liquefied natural gas gasifier which comprises a U-shaped shell, two tube plates and two tube boxes, wherein the two tube plates are fixed between two end parts of the U-shaped shell and between the two tube boxes respectively; a liquefied natural gas inlet is formed in one of the tube boxes; a liquefied natural gas outlet is formed in the other of the tube boxes; heat exchange tubes are U-shaped; a hole in a second circular type baffle plate is smaller than that in a first circular type baffle plate; the first circular type baffle plate and the second circular type baffle plate are mounted in the U-shaped shell at an interval; a plurality of heat exchange tubes are inserted on the baffle plates in a penetrating manner; end parts of the heat exchange tubes are fixed on the tube plates; a plurality of sea water inlets and sea water outlets are formed in the U-shaped shell; the sea water inlets are formed in one side of the first circular type baffle plate; the sea water outlets are formed in the other side of the first circular type baffle plate. The U-shaped shell type liquefied natural gas gasifier occupies a small space area, does not need special anti-oscillation structural design, and is high in heat exchanging efficiency and remarkable in heat exchanging effect.
Description
Technical field
The invention belongs to liquefied natural gas gasifying field, particularly relate 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 is the most increasing as eco-friendly clean energy resource proportion in energy resource structure, its use is more and more extensive, the most large-scale liquefied natural gas project gets more and more, the difficulty such as land large-scale 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 marine, it is achieved liquefied natural gas gasifying is natural gas, liquefied natural gas gasifying device is all one of equipment of non-the normally off key.
In existing technical scheme, in land liquefied natural gas receiving station project, commonly used liquefied natural gas gasifying device all can not be suitable in Floating Liquefied Natural Gas project, wherein the most possible liquefied natural gas gasifying device equipment being suitable for is mainly intermediate medium gasifier (IFV), but existing IFV floor space is the biggest, design and manufacture are the most extremely complex, especially in Floating Liquefied Natural Gas project, the space of carrying gasification module is very limited, make the range of IFV by great limitation, and need special heat transfer intermediate medium to prevent rocking process structure, these are IFV structure and the unavoidable factor of design itself.Because the principle of IFV is to use heating of seawater intermediate medium, then reheat liquefied natural gas by intermediate medium and be vaporized as natural gas, actually use the structure multiple heat exchanger package being integrated, and cannot the outlet temperature requirements of complete fulfillment natural gas, in addition it is also necessary to natural gas superheater is as supplementary heating heat exchanger.Although the three of split heat exchanger package are combined in one by IFV, decrease overall space and weight, but also far beyond the scope in Floating Liquefied Natural Gas project, the confined space utilized.It addition, intermediate medium heat exchange due in Floating Liquefied Natural Gas project the impact of rocking of hull and heat exchanging effect very big, need complicated particular design to avoid the bigger reduction effect that the performance of whole IFV gasifier device is produced by intermediate medium fluctuation.
Summary of the invention
It is an object of the invention to provide a kind of can meet bearing floating body confined space layout requirements can be reduced again the liquefied natural gas gasifying device manufacturing and designing difficulty by Floating Liquefied Natural Gas project, 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 tube sheets are separately fixed between the both ends of described U-shaped housing and two bobbin carriages, and one of them bobbin carriage is provided with Liquid natural gas inlet, and another bobbin carriage is provided with gas outlet；Also include some heat exchanger tubes, first round deflection plate, second round deflection plate, described 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, U-shaped housing is separated into some relatively independent heat transfer spaces by the second round deflection plate, some described heat exchanger tubes are interspersed on deflection plate, the end of some described heat exchanger tubes is fixed on described tube sheet, described U-shaped housing is provided with some sea intakes and seawer outlet, described sea intake is located at the side of described first 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, one end of 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 the first shell is connected with described second shell, described first round deflection plate and described second round deflection plate being installed in described first shell and described second shell at interval.
Further, the mode that the end of some described heat exchanger tubes uses welding, expanded joint or expanded and welded tube joint to combine makees fixing connection with described tube sheet.
Further, also include that supporting adn fixing device, described supporting adn fixing device are arranged on the optional position of liquefied natural gas gasifying device, be fixed on carrier for liquefied natural gas gasifying device, and ensure that its any part keeps relative position.
Compared to prior art, the invention have the benefit that
1, the most U-shaped design of liquefied natural gas gasifying device, solve and use intermediate medium gasifier to take up room the big technical problem of area in the past, 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, completely solve the axial stress problem of the 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 the separate unit of opposing spaced apart to carry out heat exchange, improves heat exchange efficiency.
3, improving when using intermediate medium gasifier to carry out heat exchange in the past, the technical problem of the wobble effects heat transfer effect of hull in Floating Liquefied Natural Gas project, 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, the hole of the first round deflection plate is bigger, 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, avoid and shell side exists heat exchange stagnant wake, improve heat transfer effect.
5, making full use of the heat of sea water, solve and use intermediate medium gasifier must use the problem of intermediate medium during heat exchange in the past, simplify 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 project on land use.
Accompanying drawing explanation
Describe some specific embodiments of the present invention the most by way of example, and not by way of limitation in detail.Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the overall structure schematic diagram of the present invention;
Fig. 2 is the overall structure schematic diagram of the present invention the first deflection plate；
Fig. 3 is the partial enlarged drawing of the present invention the first deflection plate；
Fig. 4 is the overall structure schematic diagram of the present invention the second deflection plate；
Fig. 5 is the partial enlarged drawing of the present invention the second deflection plate；
Fig. 6 is the structural representation of the present invention 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 tube sheets 2 of two bobbin carriages.On U-shaped shell-type liquefied natural gas gasifying device, supporting adn fixing device 13 is installed, described supporting adn fixing device is arranged on the optional position of liquefied natural gas gasifying device, on the most U-shaped housing, bobbin carriage, tube sheet, for facilitating liquefied natural gas gasifying device to be fixed on carrier, and ensure that its any part keeps relative position..Use U-shape structure, leave because the free space expanded with heat and contract with cold to heat exchanger tube, completely solve 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, one end of first shell and the second shell is connected together by non-standard flange seal part 12, described non-standard flange seal part is arced tube part, it has arc pipe, 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 the second shell 11.
Preferably, between bobbin carriage and tube sheet, flange (not marking in figure) is installed between tube sheet and shell, and is attached by same set of bolt (not marking in figure), be attached by flange and bolt between shell and non-standard flange seal part.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, another bobbin carriage is provided with gas outlet 4, also include some heat exchanger tubes 5, first round deflection plate 6, second round deflection plate 7, described heat exchanger tube is U-shaped, described first round deflection plate and described second round deflection plate being installed in described first shell and described second shell at interval, some heat exchanger tubes are interspersed on deflection plate, the end of some described heat exchanger tubes is fixed on described tube sheet, described shell is provided with some sea intakes 8 and seawer outlet 9, described sea intake is located at the side of described first round deflection plate, described seawer outlet is located at the opposite side of described first round deflection plate.Hole on second round deflection plate is less than the hole on the first round deflection plate, heat exchanger tube is in concentric position with the baffling hole in deflection plate, sea water is passed through by the annular space between the baffling hole of the round deflection plate of heat exchanger tube and first and the second round deflection plate, between first round deflection plate and heat exchanger tube annular space the biggest, can be 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.Thus, be equivalent to the second round deflection plate and shell side is separated into some relatively independent heat transfer spaces, each heat transfer space has independent sea water and imports and exports, can independently carry out heat exchange respectively, improve heat exchange efficiency, both can solve gasifier and run the problem frozen, it is also possible to directly meeting liquefied natural gas gasifying had been the temperature requirement of outlet after natural gas.The hole of the first round deflection plate is bigger, 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 there is heat exchange stagnant wake in shell side.
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 enters into bobbin carriage from Liquid natural gas inlet 3, then pass through tube sheet and enter in some heat exchanger tubes, sea water after the heating that sea water pump (not marking figure) carries is transported to seawater main (not marking in figure), by seawater main, sea water is sent in liquefied natural gas gasifying device by sea intake 8, sea water is flowed into the opposite side of the first round deflection plate from the side of the first round deflection plate, heat exchange is carried out with the liquefied natural gas in heat exchanger tube in certain shell side, sea water after supercooling is discharged from seawer outlet 9.In the process, 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, is transported to downstream line.
So far, those skilled in the art will recognize that, although the most detailed multiple exemplary embodiments illustrate and describing the present invention, but, without departing from the spirit and scope of the present invention, still can directly determine according to present disclosure or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention 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 characterized in that: include U-shaped housing, two tube sheets, two bobbin carriages, two described tube sheets are separately fixed between the both ends of described U-shaped housing and two bobbin carriages, one of them bobbin carriage is provided with Liquid natural gas inlet, and another bobbin carriage is provided with gas outlet；Also include some heat exchanger tubes, first round deflection plate, second round deflection plate, described 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 described heat exchanger tubes are interspersed on deflection plate, the end of some described heat exchanger tubes is fixed on described tube sheet, described U-shaped housing is provided with some sea intakes and seawer outlet, described sea intake is located at the side of described first round deflection plate, described seawer outlet is located at the opposite side of described first round deflection plate.
U-shaped shell-type liquefied natural gas gasifying device the most as claimed in claim 1, it is characterized in that: described U-shaped housing includes the first shell and the second shell, one end of 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 the first shell is connected with described second 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 mode that the end of some described heat exchanger tubes 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 the supporting adn fixing device being arranged on U-shaped shell-type liquefied natural gas gasifying device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577889.9A CN106017150A (en) | 2016-07-21 | 2016-07-21 | U-shaped shell type liquefied natural gas gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577889.9A CN106017150A (en) | 2016-07-21 | 2016-07-21 | U-shaped shell type liquefied natural gas gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106017150A true CN106017150A (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610577889.9A Pending CN106017150A (en) | 2016-07-21 | 2016-07-21 | U-shaped shell type liquefied natural gas gasifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN106017150A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266638A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | Liquefied natural gas gasifying re-heat integrated device |
| CN110869688A (en) * | 2017-06-28 | 2020-03-06 | 霍尔泰克国际公司 | Heat exchanger for harsh operating conditions |
| CN115031554A (en) * | 2022-08-10 | 2022-09-09 | 山西阳煤化工机械（集团）有限公司 | U-shaped tube heat exchanger |
| US11796255B2 (en) | 2017-02-24 | 2023-10-24 | Holtec International | Air-cooled condenser with deflection limiter beams |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201651761U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达燃气设备技术有限公司 | Horizontal nitrogen vaporizer |
| CN202329301U (en) * | 2011-05-30 | 2012-07-11 | 中国石油化工集团公司 | Fixed tube sheet heat exchanger combined with heat exchange unit modules |
| CN202834735U (en) * | 2012-09-26 | 2013-03-27 | 江苏中圣高科技产业有限公司 | Middle fluid type vaporizer |
| CN104110979A (en) * | 2013-04-18 | 2014-10-22 | 天津奥利环保设备有限公司 | U-shaped-pipe-bundle warm-water-circulating large-flow natural gas recuperator |
| CN205843430U (en) * | 2016-07-21 | 2016-12-28 | 黄志钊 | A kind of U-shaped shell-type liquefied natural gas gasifying device |
-
2016
- 2016-07-21 CN CN201610577889.9A patent/CN106017150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201651761U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达燃气设备技术有限公司 | Horizontal nitrogen vaporizer |
| CN202329301U (en) * | 2011-05-30 | 2012-07-11 | 中国石油化工集团公司 | Fixed tube sheet heat exchanger combined with heat exchange unit modules |
| CN202834735U (en) * | 2012-09-26 | 2013-03-27 | 江苏中圣高科技产业有限公司 | Middle fluid type vaporizer |
| CN104110979A (en) * | 2013-04-18 | 2014-10-22 | 天津奥利环保设备有限公司 | U-shaped-pipe-bundle warm-water-circulating large-flow natural gas recuperator |
| CN205843430U (en) * | 2016-07-21 | 2016-12-28 | 黄志钊 | A kind of U-shaped shell-type liquefied natural gas gasifying device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11796255B2 (en) | 2017-02-24 | 2023-10-24 | Holtec International | Air-cooled condenser with deflection limiter beams |
| CN110869688A (en) * | 2017-06-28 | 2020-03-06 | 霍尔泰克国际公司 | Heat exchanger for harsh operating conditions |
| CN110869688B (en) * | 2017-06-28 | 2021-10-15 | 霍尔泰克国际公司 | Heat exchanger for harsh operating conditions |
| US11187471B2 (en) | 2017-06-28 | 2021-11-30 | Holtec International | Heat exchanger for severe service conditions |
| CN108266638A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | Liquefied natural gas gasifying re-heat integrated device |
| CN115031554A (en) * | 2022-08-10 | 2022-09-09 | 山西阳煤化工机械（集团）有限公司 | U-shaped tube heat exchanger |
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