CN105651086B - It is a kind of to be used for the plate-fin heat exchanger of floating platform - Google Patents
It is a kind of to be used for the plate-fin heat exchanger of floating platform Download PDFInfo
- Publication number
- CN105651086B CN105651086B CN201610108041.1A CN201610108041A CN105651086B CN 105651086 B CN105651086 B CN 105651086B CN 201610108041 A CN201610108041 A CN 201610108041A CN 105651086 B CN105651086 B CN 105651086B
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- Prior art keywords
- cryogen
- housing
- outlet
- core body
- flow passage
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins
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- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The plate-fin heat exchanger of floating platform can be used for the present invention relates to a kind of, the heat exchanger includes a housing, at least one cryogen uniform device and at least one core body in housing is arranged on；The side wall upper part of housing, which is provided with least one cryogen entrance, top and is provided with the outlet of gas phase cryogen, bottom, is provided with the outlet of at least one liquid phase cryogen, and the outlet of cryogen entrance, liquid phase cryogen and the number of cryogen uniform device and the number of core body are identical, core body and cryogen entrance, cryogen uniform device and liquid phase cryogen outlet are corresponded；Cryogen uniform device is connected with cryogen entrance, and core body is located at the lower section of cryogen entrance and cryogen uniform device；Core body includes inner flow passage, outer flow passage, inlet tube and outlet, inner flow passage is divided into multilayer, different layers inner flow passage energy mobile phase with or different types of cooled medium, the multilayer inner flow passage for flowing the cooled medium of identical type shares a root entry pipe and outlet, inlet tube and outlet are each passed through housing and extend out to outside, and outer flow passage is connected with housing.
Description
Technical field
The present invention relates to a kind of plate-fin heat exchanger, more particularly to a kind of it can be used for the plate-fin heat exchanger of floating platform.
Background technology
The technology maturation of plate-fin heat exchanger, is widely used to mini gas liquefaction field at present.In liquefaction process,
Natural gas and hot-fluid cryogen generally flow through heat exchanger runner from top to bottom, and cold flow cryogen then backflows from bottom to top, with natural gas
And the heat exchange of hot-fluid cryogen.Pressure drop of the liquid phase of cold flow cryogen in plate wing runner is larger, rely primarily on gas phase entrainment act on to
Upper flowing, when operating operating mode to change, the situation of liquid phase can not be carried secretly completely by easily occurring gas phase, cause liquid phase cold flow cryogen to exist
Ice chest bottom hydrops, influences the normal operation of whole liquefaction plant.When the liquefaction treatment scale of natural gas is larger, it is necessary to multiple
Fin heat exchanger core series/parallel, and under operating mode in parallel, the natural gas flow in each heat exchanger core body is uneven, influence
Heat transfer effect.
In the prior art, it is also a kind of to be soaked in fin heat exchanger core in the outside cryogen being contained in housing
Cooled medium in device, heat exchanger core body is exchanged heat with outside cryogen；The device is easy to process, simple to operate.But
It is that cryogen is filled to be needed to throttle through choke valve into before housing, part cryogen gasifies in throttling process, cryogen is flowed into after housing directly
Housing bottom is flowed to, is unfavorable for the gas, liquid separation of cryogen, causes to be mingled with gas phase Jie in the plate wing runner of exchanger base
Matter, influences the heat transfer effect of the device；And the starting stage filled in cryogen, a large amount of liquid coolants directly come down in torrents to housing bottom
Portion, is easily caused device damage, reduction of service life.
In addition, in the prior art, the flowing of fluid is more sensitive to rocking operating mode in plate-fin heat exchanger, anti-shake dynamic performance
It is poor, it is not suitable for the liquefaction of natural gas on floating platform；And a heat exchanger can only cool down a kind of medium, as cooled Jie
When the treating capacity of matter is larger, it is more huge that heat exchanger structure need to be designed, while also needing to increase cryogen containing quantity, not enough warp
Ji.
The content of the invention
In view of the above-mentioned problems, can be used for the plate-fin heat exchanger of floating platform it is an object of the invention to provide a kind of, can be more
Plus cost-effectively serve area of natural gas liquefaction.
To achieve the above object, the present invention takes following technical scheme：It is a kind of to be used for the plate fin heat-exchanging of floating platform
Device, it is characterised in that the heat exchanger includes a housing, is arranged at least one cryogen uniform device in the housing, and set
At least one core body in the housing；Wherein, the side wall upper part of the housing is provided with least one cryogen entrance, top
It is provided with a gas phase cryogen outlet, bottom and is provided with the outlet of at least one liquid phase cryogen, and the cryogen entrance, liquid phase cryogen
The number of outlet and cryogen uniform device is identical with the number of the core body, the core body and the cryogen entrance, cryogen uniform device
Export and correspond with liquid phase cryogen；The cryogen uniform device is connected with the cryogen entrance, and the core body is located at described cold
The lower section of agent entrance and cryogen uniform device；The core body includes inner flow passage, outer flow passage, inlet tube and outlet, the inner flow passage
Be divided into multilayer, inner flow passage energy mobile phase described in different layers with or different types of cooled medium, flowing identical type is cold
But inner flow passage described in the multilayer of medium shares the inlet tube and outlet, flows the described of the cooled medium of variety classes
Inner flow passage uses the different inlet tube and outlet, and the inlet tube and outlet are each passed through the housing and extend out to outside
Portion, the outer flow passage is connected with the housing.
The core body number is 1-6.
When the core body is two or more, at least one weir plate is additionally provided with the housing, the weir plate will be described
Housing is separated into the disconnected housing unit of multiple liquid phases, and each housing unit is cold with cryogen entrance, liquid phase described in one
Agent outlet is corresponding with cryogen uniform device, and all housing units share the gas phase cryogen outlet；Each core body difference
In each housing unit, and less than at the top of the weir plate at the top of the core body.
Be connected between the inner flow passage upper end and the inlet tube by entrance end socket, the inner flow passage lower end with it is described
It is connected between outlet by outlet head, flow deflector is additionally provided with the core body.
The cryogen uniform device includes extension, branch pipe, box body and dripping hole；The extension connects with the cryogen entrance
Connect and stretch into the housing, many branch pipes are connected with the extension simultaneously, and the box body is located at the extension
It is fixedly connected outside pipe and branch pipe and with the side wall of the housing, multiple dripping holes are uniformly opened in the bottom of the box body
Portion.
The present invention is due to taking above technical scheme, and it has advantages below：It is 1st, of the invention by setting cryogen uniform device,
Reduction cryogen fills device damage degree caused by big quantity of fluid at initial stage is toppled over to housing bottom, while improving cryogen gas-liquid separation
Effect.2nd, a core body of the invention can cool down medium simultaneously, media processes amount be added, while reducing plate-fin
The volume of the core body of heat exchanger and outside housing, and saved cryogen consumption.3rd, the present invention uses end socket and flow deflector pair
Cooled medium carries out water conservancy diversion, improves uniform performance of the cooled medium in the inner flow passage of fin heat exchanger core, makes
Cooled heat exchange between medium and cryogen is more abundant.4th, the present invention between core body by setting weir plate, and improves cryogen
Liquid level is soaked, the anti-shake dynamic performance of heat exchanger is enhanced, improves operation stability of the heat exchanger on floating platform.
Brief description of the drawings
Fig. 1 is the front view that the present invention uses two core body schemes；
Fig. 2 is the top view that the present invention uses two core body schemes；
Fig. 3 is the top view that the present invention uses three core body schemes；
Fig. 4 is the front view of core body of the present invention；
Fig. 5 is the structural representation of wherein one layer inner flow passage of core body of the present invention；
Fig. 6 is the structural representation of another layer of inner flow passage of core body of the present invention；
Fig. 7 is the top view of core body of the present invention；
Fig. 8 is the schematic diagram that core body of the present invention is immersed in cryogen；
Fig. 9 is the front view of cryogen uniform device of the present invention；
Figure 10 is the top view of cryogen uniform device of the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, it is of the invention it is a kind of can be used for the plate-fin heat exchanger of floating platform, it includes one
Housing 1, at least one core body 2 and at least one cryogen uniform device 3.Wherein, to be provided with least one cold for the side wall upper part of housing 1
Agent entrance 11, top is provided with gas phase cryogen outlet 12, and bottom is provided with least one liquid phase cryogen outlet 13, and cryogen enters
Mouth 11 and the number of liquid phase cryogen outlet 13 are identical with the number of core body 2.
As shown in Fig. 4~Fig. 8, core body 2 is arranged in housing 1 and positioned at the lower section of cryogen entrance 11, and each core body 2 with it is each cold
Agent entrance 11 and liquid phase cryogen outlet 13 are corresponded, and the independent cryogen entrance 11 of each core body 2 correspondence and liquid phase cryogen go out
Mouth 13；Core body 2 includes inner flow passage 21, outer flow passage 22, inlet tube 23 and outlet 24, wherein, inner flow passage 21 is divided into multilayer, different
Layer inner flow passage 21 can with mobile phase with or different types of cooled medium, flowing identical type is cooled in the multilayer of medium
Runner 21 shares a root entry pipe 23 and outlet 24, and the inner flow passage 21 of the cooled medium of flowing variety classes is entered using different
Mouth pipe 23 and outlet 24, inlet tube 23 and outlet 24 are each passed through housing 1 and extend out to outside, for being flowed into inner flow passage 21
With the cooled medium for flowing out identical or different species；Outer flow passage 22 is connected with housing 1, and cryogen is uniformly distributed in outer flow passage
22, so that a core body 2 can cool down a variety of cooled media simultaneously, the media processes amount of single core body 2 is added, is reduced
The volume of core body 2 and outside housing 1, and saved cryogen usage amount.
As shown in Figure 1, Figure 2 and Figure 3, cryogen uniform device 3 is arranged in housing 1 and is connected with cryogen entrance 11, cryogen
The number of uniform device 3 is identical with the number of core body 2, and each cryogen uniform device 3 is located at the top of each core body 2 respectively.Cryogen uniform device 3
Reduce cryogen and fill big quantity of fluid at initial stage to device damage degree caused by the bottom dump of housing 1, while improving cryogen
Gas-liquid separation effect.
In above-described embodiment, as shown in Figure 1, Figure 2 and Figure 3, according to scale needs, the number of core body 2 accommodated in housing 1 can
1-6 are thought, to meet the demand of large-scale natural gas liquefaction processing.When core body 2 is two or more, be provided with housing 1 to
A few weir plate 4 by housing 1 to be separated into the disconnected housing unit of multiple liquid phases, and each housing unit has corresponding
Cryogen entrance 11, liquid phase cryogen outlet 13 and cryogen uniform device 3, the gas phase cryogen at all tops of housing unit common housing 1 go out
Mouth 12.Each core body 2 is located in each housing unit respectively, and the top of core body 2 is less than the top of weir plate 4.Cryogen is by the note of cryogen entrance 11
Enter each housing unit, weir plate 4 improves cryogen immersion liquid level, makes liquid level on cryogen concordant with the height of the inner flow passage 21 of core body 2,
Liquid fluctuating when heat exchanger is tilted can be reduced, effectively prevent heat exchange efficiency from declining, enhance the anti-shake dynamic performance of heat exchanger；
And each one cryogen entrance 11 of correspondence of core body 2 and liquid phase cryogen outlet 13, improve operation of the heat exchanger on floating platform
Stability.
In above-described embodiment, as shown in Fig. 4~Fig. 6, entrance is passed through between the upper end of inner flow passage 21 of core body 2 and inlet tube 23
End socket 25 is connected, and is connected between the lower end of inner flow passage 21 and outlet 24 by outlet head 26, is additionally provided with and leads in core body 2
Flow 27, when cooled medium flows in and out core body 2, is respectively adopted entrance end socket 25 and the progress fluid of outlet head 26 is equal
Cloth, then water conservancy diversion is carried out by flow deflector 27, uniform performance of the cooled medium in inner flow passage 21 greatly improved, makes cooled Jie
Heat exchange between matter and cryogen is more abundant, enhances the heat transfer effect of cooled medium and cryogen.
In above-described embodiment, as shown in Figure 9 and Figure 10, cryogen uniform device 3 includes extension 31, branch pipe 32, the and of box body 33
Dripping hole 34, wherein, extension 31 is connected and stretched into housing 1 with cryogen entrance 11, multiple branch pipes 32 simultaneously with extension 31
It is connected, box body 33 is located at extension 31 and the outside of branch pipe 32 and is fixedly connected with the side wall of housing 1, and multiple dripping holes 34 are uniform
It is opened in the bottom of box body 33.Cryogen enters extension 31 by cryogen entrance 11, is then sprayed by multiple branch pipes 32, in box body 33
Interior progress gas-liquid phase separation, gas phase cryogen is flowed into housing 1 to the upper flow of housing 1, liquid phase cryogen by dripping hole 34, it is to avoid cold
Agent is a large amount of to the bottom dump of housing 1, so as to reduce the damaged condition of equipment, increases the service life, while making the gas-liquid in cryogen
Mutually more efficient separation, the heat transfer effect of increase cryogen and cooled medium.
In the use of the present invention, different types of cooled medium respectively through different inlet tube 23 and entrance end socket 25 from
Different layers inner flow passage 21 that is upper and flowing into core body 2 lowerly, cryogen is flowed into housing 1 extremely by cryogen entrance 11 through cryogen uniform device 3
Liquid level is operated, operation liquid level and the height of inner flow passage 21 of core body 2 are substantially concordant, and cryogen is uniformly distributed in the outer flow passage 22 of core body 2.
Different types of cooled medium is cooled down through cryogen, and temperature is gradually reduced, and respectively through different outlet heads 26 and outlet
24 outflows, so as to cool down two or more cooled media simultaneously；Liquid phase cryogen heat absorbing part gasifies, the gas phase cryogen of formation,
Flowed out by the gas phase cryogen outlet 12 at the top of housing 1, the liquid phase cryogen not undergone phase transition is exported by the liquid phase cryogen of the bottom of housing 1
13 outflows.Siphonage power is produced in liquid phase cryogen evaporation process, drives cryogen to be flowed in the inner loop of housing 1, makes heat exchanger
Device more simplify, operate it is simpler.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, set location and its connected mode etc.
It can all be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be arranged
In addition in protection scope of the present invention.
Claims (6)
1. a kind of can be used for the plate-fin heat exchanger of floating platform, it is characterised in that the heat exchanger includes
One housing,
At least one cryogen uniform device in the housing is arranged on, and
It is arranged at least one core body in the housing；
Wherein, the side wall upper part of the housing be provided with least one cryogen entrance, top be provided with the outlet of gas phase cryogen,
Bottom is provided with the outlet of at least one liquid phase cryogen, and the number of the outlet of the cryogen entrance, liquid phase cryogen and cryogen uniform device
Identical with the number of the core body, the core body is corresponded with the cryogen entrance, cryogen uniform device and liquid phase cryogen outlet；
The cryogen uniform device is connected with the cryogen entrance, and the core body is located under the cryogen entrance and cryogen uniform device
Side；
The core body includes inner flow passage, outer flow passage, inlet tube and outlet, and the inner flow passage is divided into multilayer, described in different layers in
Runner energy mobile phase with or different types of cooled medium, flowing identical type is cooled inner flow passage described in the multilayer of medium
Share the inlet tube and outlet, the be cooled inner flow passage of medium of flowing variety classes enters using described in different
Mouth pipe and outlet, the inlet tube and outlet are each passed through the housing and extend out to outside, the outer flow passage and the shell
Body phase is connected.
2. a kind of as claimed in claim 1 can be used for the plate-fin heat exchanger of floating platform, it is characterised in that the core body
Number is 1-6.
3. a kind of as claimed in claim 2 can be used for the plate-fin heat exchanger of floating platform, it is characterised in that when the core body
During for two or more, at least one weir plate is additionally provided with the housing, the housing is separated into multiple liquid phases by the weir plate
Disconnected housing unit, each housing unit is exported and cryogen uniform device with cryogen entrance, liquid phase cryogen described in one
Corresponding, all housing units share the gas phase cryogen outlet；Each core body is located at each housing unit respectively
It is interior, and less than at the top of the weir plate at the top of the core body.
4. a kind of as described in claim 1 or 2 or 3 can be used for the plate-fin heat exchanger of floating platform, it is characterised in that described
It is connected between inner flow passage upper end and the inlet tube by entrance end socket, is led between the inner flow passage lower end and the outlet
Cross outlet head to be connected, flow deflector is additionally provided with the core body.
5. a kind of as described in claim 1 or 2 or 3 can be used for the plate-fin heat exchanger of floating platform, it is characterised in that described
Cryogen uniform device includes extension, branch pipe, box body and dripping hole；The extension is connected with the cryogen entrance and stretched into described
In housing, many branch pipes are connected with the extension simultaneously, and the box body is located at outside the extension and branch pipe
And be fixedly connected with the side wall of the housing, multiple dripping holes are uniformly opened in the bottom of the box body.
6. a kind of as claimed in claim 4 can be used for the plate-fin heat exchanger of floating platform, it is characterised in that the cryogen is equal
Cloth device includes extension, branch pipe, box body and dripping hole；The extension is connected with the cryogen entrance and stretches into the housing
Interior, multiple branch pipes are connected with the extension simultaneously, the box body be located at outside the extension and branch pipe and with
The housing sidewall is fixedly connected, and multiple dripping holes are uniformly opened in the box body bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108041.1A CN105651086B (en) | 2016-02-26 | 2016-02-26 | It is a kind of to be used for the plate-fin heat exchanger of floating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108041.1A CN105651086B (en) | 2016-02-26 | 2016-02-26 | It is a kind of to be used for the plate-fin heat exchanger of floating platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105651086A CN105651086A (en) | 2016-06-08 |
| CN105651086B true CN105651086B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610108041.1A Active CN105651086B (en) | 2016-02-26 | 2016-02-26 | It is a kind of to be used for the plate-fin heat exchanger of floating platform |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340022A (en) * | 2017-08-29 | 2017-11-10 | 中国计量大学 | Ultrasonic Wave Flowmeter |
| CN109916137A (en) * | 2019-04-09 | 2019-06-21 | 中国海洋石油集团有限公司 | A kind of ice chest shunting means |
| CN110375519A (en) * | 2019-07-12 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of large-scale natural gas cold box system based on plate-fin heat exchanger |
| CN112304141A (en) * | 2020-09-22 | 2021-02-02 | 蓝箭航天空间科技股份有限公司 | Heat exchanger system and heat exchange method for liquid oxygen/liquid methane and liquid nitrogen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07243760A (en) * | 1994-03-07 | 1995-09-19 | Kobe Steel Ltd | Heat exchanger |
| JPH11183063A (en) * | 1997-12-19 | 1999-07-06 | Abb Kk | Plate heat exchanger |
| SE518190C2 (en) * | 2000-02-01 | 2002-09-10 | Alfa Laval Ab | Conductor comprising at least one tank with at least one space and at least one plate heat exchanger |
| CN2648381Y (en) * | 2003-09-27 | 2004-10-13 | 杭州杭氧股份有限公司 | Double phase flow air liquid energy distributing device for plate fin type heat exchanger |
| CN105300159A (en) * | 2015-11-12 | 2016-02-03 | 无锡市豫达换热器有限公司 | Compact heat exchanger where multi-core composite technology is adopted |
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2016
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC Gas & Power Group Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC Gas & Power Group Patentee before: China National Offshore Oil Corporation |