CN107504840A - A kind of LNG high pressures wound tube heat exchanger peculiar to vessel - Google Patents
A kind of LNG high pressures wound tube heat exchanger peculiar to vessel Download PDFInfo
- Publication number
- CN107504840A CN107504840A CN201710842127.1A CN201710842127A CN107504840A CN 107504840 A CN107504840 A CN 107504840A CN 201710842127 A CN201710842127 A CN 201710842127A CN 107504840 A CN107504840 A CN 107504840A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- welded
- housing
- perforated plate
- 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
Classifications
-
- 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
- F28D7/02—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 being helically coiled
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
-
- 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
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of LNG high pressures wound tube heat exchanger peculiar to vessel, including housing and it is fixed on heat exchange element in housing, the housing is welded by cylinder and two end housings, the top and bottom of the housing are respectively welded upper perforated plate and lower perforated plate, high pressure NG outlets are welded with the upper cover, it is welded with high pressure LNG inlet tubes on the low head, the upper and lower ends on the right side of the cylinder body outer wall are respectively welded heating medium inlet and Crude product input pipe；Enclosure interior is provided with central tube along cylinder axis, central tube both ends respectively with upper and lower Tube-sheet Welding, Multi-layer exchanging heat pipe is provided with the outside of central tube, heat exchanger tube winds around on central tube and fixed by filler strip and pipe collar, adjacent layer heat exchanger tube winding direction is opposite, heat exchanger tube both ends are connected with tube sheet, LNG high pressures wound tube heat exchanger peculiar to vessel is compact-sized, safe and reliable, heat transfer efficiency is high for this, easy to use and heat exchanger tube with free wxpansion, can meet the requirement of the big resistance to temperature difference of heat exchanger, low temperature and high pressure.
Description
Technical field
The present invention relates to LNG high pressures wound tube heat exchanger peculiar to vessel, it is mainly used in the double fuel using high-pressure natural gas as fuel
Low speed two-stroke marine engine gas supply system.
Background technology
According to statistics, the CO of shipping business at present2Discharge accounts for 2~4%, the NO in the whole worldXDischarge accounts for 10~20%, the SO in the whole worldXRow
Put and account for the 4~8% of the whole world.It can be seen that shipping business has become the rich and influential family of air pollutant emission.According to MARPOL pact supplemental provisions
VI, it will progressively implement stricter NO in global shipping worldXAnd SOXEmission request.Divided in the world multiple discharge controls
Area (ECA areas) processed, such as Baltic Sea, the North Sea, North America and the Caribbean.It is domestic big in Pearl River Delta, the Yangtze River Delta and Circum-Bohai Sea three
Set up ship emission control area in waters.Preventing and treating air pollution drives maritime world and seeks advanced technology to reduce ship discharge sky
Gas pollutant, arisen at the historic moment for this natural gas fuels and energy ship, then the supporting installation LNG fuel pure gas of various ships or double combustions
Expect engine.
Made by German MAN company's double fuel low speed two-stroke marine engine, main model include MANB＆WS35ME-B9-GI and
MAN G45ME-C9.5-GI, supply gas pressure reach 30MPa.MAN companies double fuel can be met using low temperature resistant and high pressure heat exchange pipe
The requirement of low speed two-stroke marine engine.Space is small on ship, and design is a kind of compact-sized, and the high heat exchanger of heat exchange efficiency very must
Will.
The content of the invention
To solve problem present in high pressure air feed system, the present invention provides a kind of LNG high pressures wound tube heat exchanger peculiar to vessel,
The heat exchanger has the advantages that the resistance to big temperature difference, low temperature resistant, high pressure resistant, compact-sized, heat transfer is efficient, safe and reliable, easy to use,
Meet that ship specification requires the various load-up conditions considered.
The present invention LNG high pressures wound tube heat exchanger peculiar to vessel, its operating pressure is 25MPa~35MPa, operating temperature for-
161.5 DEG C~55 DEG C.
The technical scheme is that：A kind of LNG high pressures wound tube heat exchanger peculiar to vessel, including housing, the housing is by cylinder
It is welded with two end housings, and two end housings are welded in the upper and lower ends of cylinder, the top and bottom of the housing are welded respectively
Upper perforated plate and lower perforated plate are connected to, the upper perforated plate upper end is welded with upper cover, and the lower end of the lower perforated plate is welded with low head, institute
State and high pressure NG outlets are welded with upper cover, high pressure LNG inlet tubes, the cylinder body outer wall right side are welded with the low head
Upper and lower ends be respectively welded heating medium inlet and Crude product input pipe.
Preferably, the enclosure interior is provided with central tube along cylinder axis, the central tube upper and lower ends respectively with it is upper
The bottom surface of tube sheet connects with the upper surface of lower perforated plate, and uniform winding has Multi-layer exchanging heat pipe on the outside of central tube.
Preferably, the heat exchanger tube is wound around on central tube, and is fixed by pipe collar and filler strip.
Preferably, the filler strip is divided into two kinds of flat strip and special-shaped filler strip.
Preferably, the heat exchanger tube winding direction of the adjacent layer is opposite.
Preferably, the inner barrel filling heating medium.
Preferably, described every layer heat exchanger tube both ends are connected with upper perforated plate and lower perforated plate joint using butt welding pattern respectively
Connect.
Preferably, the hull outside is provided with heat-insulation layer, and heat-insulation layer be sequentially provided with from inside to outside wrapping layer, heat-insulation layer and
Overcoat.
Preferably, hull outside is provided with anti-static grounding plate.
Compared with prior art, the beneficial effects of the invention are as follows：The heat exchanger is by using low temperature resistant and high voltage bearing pipe
Material, the resistance to big temperature difference and high voltage bearing ability to work are made it have, and be wrapped in by heat exchanger tube MULTILAYER COMPOSITE on central tube, reached
Compact-sized, the efficient beneficial effect of heat transfer, while heat pipe is exchanged by pipe collar and filler strip and is fixed, increase is safe and reliable
Property, tube sheet connected with heat exchanger tube using butt welding, disclosure satisfy that the various load considered in ship specification requirement, then from entirety
The convenience that the upper increase present invention uses.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Tube Sheet of Heat Exchanger cuff structure schematic diagram；
Fig. 3 is A close-up schematic views in Fig. 2；
Fig. 4 is heat exchanger abnormity filler strip structure schematic diagram；
Fig. 5 is heat exchanger tube sheet and heat exchanger tube attachment structure schematic diagram；
Fig. 6 is B close-up schematic views in Fig. 5.
In figure：1st, end housing, 2, cylinder, 3, upper cover, 4, low head, 5, high pressure NG outlets, 6, high pressure LNG inlet tubes,
7th, central tube, 8, upper perforated plate, 9, lower perforated plate, 10, heat exchanger tube, 11, pipe collar, 12, filler strip, 13, heating medium inlet, 14 plus
Thermal medium outlet pipe, 15, wrapping layer, 16, heat-insulation layer, 17, overcoat, 18, anti-static grounding plate, 19, housing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As Figure 1-5, a kind of LNG high pressures wound tube heat exchanger peculiar to vessel of the present embodiment, including housing 19, the housing 19
It is welded by cylinder 2 and two end housings 1, and two end housings 1 are welded in the upper and lower ends of cylinder 2, the upper end of the housing 19
Upper perforated plate 8 and lower perforated plate 9 are respectively welded with lower end, and the upper end of upper perforated plate 8 is welded with upper cover 3, under the lower perforated plate 9
End is welded with low head 4, high pressure NG outlets 5 is welded with the upper cover 3, being welded with high pressure LNG on the low head 4 enters
Mouth pipe 6, the high pressure NG outlets 5 can be interchangeable use with high pressure LNG inlet tubes 6, and the outer wall of cylinder 2, which is welded with, to be added
Thermal medium inlet pipe 13 and Crude product input pipe 14, the heating medium inlet 13 can be entered with Crude product input pipe 14
Row used interchangeably.
Specifically, central tube 7, the upper and lower ends of central tube 7 point are provided with along the axis of cylinder 2 inside the housing 19
It is not connected with the bottom surface of upper perforated plate 8 and the upper surface of lower perforated plate 9, and the outside uniform winding of central tube 7 has Multi-layer exchanging heat pipe 10, it is real
The heat exchange function of existing heat exchanger.
Specifically, the heat exchanger tube 10 is wound around on central tube 7, the upper and lower ends of the central tube 7 difference He of upper perforated plate 8
Lower perforated plate 9 is welded, and central tube exchange heat pipe is played a supportive role, and the heat exchanger tube 10 is fixed by pipe collar 11 and filler strip 12, can be increased
The stability of heat exchanger tube 10, and the mode of unilateral weldering is fixed on filler strip 12 on the outside of the one end of pipe collar 11, as shown in Figures 2 and 3.
Specifically, the filler strip 12 is enterprising in the axial direction in the enterprising between-line spacing arrangement of ring circumferential direction, the filler strip 12
Row continuously or discontinuously arranges that the filler strip 12 is divided to for two kinds of flat strip and special-shaped filler strip, and the heat exchange of multilayer is prevented by filler strip 12
It is unstable and produce mutually collision between pipe 10, while special-shaped filler strip can be prevented using " U-shaped " structure as shown in Figure 4, filler strip 12
The play of heat exchanger tube 10, increase the service life of heat exchanger tube 10.It must be polished smooth at the gap of filler strip 12, the both ends of filler strip 12 are using pipe
Hoop 11 is fixed with heat exchanger tube 10.
Specifically, the winding direction of heat exchanger tube 10 of the adjacent layer is on the contrary, as odd-level wound clockwise, even level are inverse
Hour hands are wound.
Specifically, the inside of the housing 19 filling heating medium, and heat medium and select steam or anti-icing fluid, improve
Heat exchange efficiency and reduction ice block up risk.
Specifically, the described every layer both ends of heat exchanger tube 10 use butt welding type with upper perforated plate 8 and the joint of lower perforated plate 9 respectively
Formula connects, and reduces attachment structure strength failure risk, avoids repeated stock and cryogenic high pressure from causing fatigue damage, such as Fig. 5 and Fig. 6
It is shown.
Specifically, the outside of housing 19 is provided with heat-insulation layer 16, and heat-insulation layer 16 is sequentially provided with wrapping layer from inside to outside
15th, heat-insulation layer 16 and overcoat 17, stiffening ring can be set on wrapping layer 17, for fixing heat-insulation layer 16, and heat-insulation layer 16
The materials such as rock wool or polyurethane foam plastics can be used.
Specifically, the outside of housing 19 is provided with anti-static grounding plate 18, can be by heat exchanger by anti-static grounding plate
Body is grounded, so as to ensure the safe operation of heat exchanger.
Operation principle：When high pressure LNG enters end socket 4 by inlet tube 6, heat exchanger tube is entered by lower perforated plate 9, heat medium by
Inlet tube 13 enters in cylinder, and the LNG exchanged in heat pipe is heated, after heat exchange, the mesohigh LNG gasification of heat exchanger tube 10
Heat up as high pressure NG gases, enter end socket 3 through upper perforated plate 8, flowed out by outlet 5, and heat medium and exported by outlet 14,
This structure can realize efficient heat exchange.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of LNG high pressures wound tube heat exchanger peculiar to vessel, including housing (19), it is characterised in that：The housing (19) is by cylinder
(2) it is welded with two end housings (1), and two end housings (1) are welded in the upper and lower ends of cylinder (2), the housing (19)
Top and bottom are respectively welded upper perforated plate (8) and lower perforated plate (9), and upper perforated plate (8) upper end is welded with upper cover (3), institute
State lower perforated plate (9) lower end and be welded with low head (4), high pressure NG outlets (5), the lower envelope are welded with the upper cover (3)
High pressure LNG inlet tubes (6) are welded with head (4), and the upper and lower ends on the right side of cylinder (2) outer wall are respectively welded heating medium
Inlet tube (13) and Crude product input pipe (14).
A kind of 2. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 1, it is characterised in that：The housing (19)
It is internal to be provided with central tube (7) along cylinder (2) axis, central tube (7) upper and lower ends respectively with the bottom surface of upper perforated plate (8) and
The upper surface connection of lower perforated plate (9), and uniform winding has Multi-layer exchanging heat pipe (10) on the outside of central tube (7).
A kind of 3. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 2, it is characterised in that：The heat exchanger tube
(10) wind around on central tube (7), and it is fixed by pipe collar (11) and filler strip (12).
A kind of 4. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 3, it is characterised in that：The filler strip (12)
Including two kinds of flat strip and special-shaped filler strip.
A kind of 5. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 3, it is characterised in that：The adjacent layer
Heat exchanger tube (10) winding direction is opposite.
A kind of 6. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 1, it is characterised in that：The housing (19)
Inside filling heating medium.
A kind of 7. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 1, it is characterised in that：Described every layer changes
Heat pipe (10) both ends are connected with upper perforated plate (8) and lower perforated plate (9) joint respectively.
A kind of 8. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 1, it is characterised in that：The housing (19)
Outside is provided with heat-insulation layer (16), and heat-insulation layer (16) is sequentially provided with wrapping layer (15), heat-insulation layer (16) and overcoat from inside to outside
(17)。
A kind of 9. LNG high pressures wound tube heat exchanger peculiar to vessel according to claim 1, it is characterised in that：The housing (19)
Outside is provided with anti-static grounding plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842127.1A CN107504840A (en) | 2017-09-18 | 2017-09-18 | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842127.1A CN107504840A (en) | 2017-09-18 | 2017-09-18 | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107504840A true CN107504840A (en) | 2017-12-22 |
Family
ID=60697611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710842127.1A Pending CN107504840A (en) | 2017-09-18 | 2017-09-18 | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11536519B2 (en) * | 2018-07-28 | 2022-12-27 | Linde Gmbh | Support of heat exchangers made of wound tubes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497405U (en) * | 2009-09-01 | 2010-06-02 | 山东鸿基换热技术有限公司 | All-welded threaded pipe heat exchanger |
| CN102455139A (en) * | 2011-10-18 | 2012-05-16 | 张周卫 | Double-strand-flow low-temperature spiral winding pipe type heat exchanger with vacuum heat insulation function |
| CN105674773A (en) * | 2016-01-25 | 2016-06-15 | 牛玉振 | Winding type heat exchanger for LNG refrigerator |
| CN207231278U (en) * | 2017-09-18 | 2018-04-13 | 湖北迪峰船舶技术有限公司 | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel |
-
2017
- 2017-09-18 CN CN201710842127.1A patent/CN107504840A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497405U (en) * | 2009-09-01 | 2010-06-02 | 山东鸿基换热技术有限公司 | All-welded threaded pipe heat exchanger |
| CN102455139A (en) * | 2011-10-18 | 2012-05-16 | 张周卫 | Double-strand-flow low-temperature spiral winding pipe type heat exchanger with vacuum heat insulation function |
| CN105674773A (en) * | 2016-01-25 | 2016-06-15 | 牛玉振 | Winding type heat exchanger for LNG refrigerator |
| CN207231278U (en) * | 2017-09-18 | 2018-04-13 | 湖北迪峰船舶技术有限公司 | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11536519B2 (en) * | 2018-07-28 | 2022-12-27 | Linde Gmbh | Support of heat exchangers made of wound tubes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021008620A1 (en) | Gas supply system employing two fuels for use in ultra-large container ship, and ultra-large container ship | |
| CN106184684A (en) | Peculiar to vessel automatically control removable LNG fuel tank case air supply system | |
| CN109185693A (en) | The natural gas high-low pressure integrated gas supply system of large-scale double fuel Power Vessel | |
| CN105179933B (en) | Universal aircraft power system with liquefied natural gas (LNG) as fuel and fuel supply method of universal aircraft power system | |
| CN206803792U (en) | A kind of ship electric power plant condenser | |
| CN207231278U (en) | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel | |
| CN107504840A (en) | A kind of LNG high pressures wound tube heat exchanger peculiar to vessel | |
| CN205872419U (en) | Novel seawater cooling system of marine engine group | |
| CN106438039B (en) | A kind of hydrogen-fuel engine protection system | |
| CN106017150A (en) | U-shaped shell type liquefied natural gas gasifier | |
| CN206454148U (en) | A kind of fire boat | |
| CN203571422U (en) | High-pressure LNG (Liquefied Natural Gas) gasifying heater | |
| CN207212548U (en) | The high-pressure gas feed system of ship dual fuel engine | |
| CN206989506U (en) | Corrosion resistant U-tube dry evaporator | |
| CN205977466U (en) | A LNG vaporizer adds hot -water heating system for river steamer in LNG power | |
| CN208417929U (en) | A kind of scale compensator | |
| JP5504394B2 (en) | Fuel oil heating supply system using exhaust heat of diesel engine | |
| CN209229786U (en) | Straight pipe type rocket chamber and power drive unit | |
| CN210400080U (en) | Winding pipe type combined heat exchanger for dual-fuel power ship | |
| CN205979176U (en) | A fuel gas double cannula structure for river steamer in LNG power | |
| CN210564804U (en) | Ship auxiliary power generation system based on Stirling cycle | |
| CN205843430U (en) | A kind of U-shaped shell-type liquefied natural gas gasifying device | |
| CN208365932U (en) | A kind of BOG liquefying plant for LNG ship oceangoing ship | |
| CN206626396U (en) | A kind of gasification system of liquefied natural gas | |
| CN202973056U (en) | Supercharged boiler pressure-bearing casing structure for ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |