CN105651086A - Plate-fin heat exchanger capable of being used for floating platform - Google Patents
Plate-fin heat exchanger capable of being used for floating platform Download PDFInfo
- Publication number
- CN105651086A CN105651086A CN201610108041.1A CN201610108041A CN105651086A CN 105651086 A CN105651086 A CN 105651086A CN 201610108041 A CN201610108041 A CN 201610108041A CN 105651086 A CN105651086 A CN 105651086A
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- CN
- China
- Prior art keywords
- cryogen
- outlet
- housing
- core body
- heat exchanger
- 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.)
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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
- 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
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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
- 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention relates to a plate-fin heat exchanger capable of being used for a floating platform. The heat exchanger comprises a shell, at least one refrigerant even distributor and at least one core, wherein the refrigerant even distributors and the cores are arranged in the shell. At least one refrigerant inlet is formed in the upper portions of the side walls of the shell, a gas phase refrigerant outlet is formed in the top of the shell, and at least one liquid phase refrigerant outlet is formed in the bottom of the shell. The number of the refrigerant inlets, the number of the liquid phase refrigerant outlets and the number of the refrigerant even distributors are the same as the number of the cores. The cores are in one-to-one correspondence to the refrigerant inlets, the refrigerant even distributors and the liquid phase refrigerant outlets. The refrigerant even distributors are connected with the refrigerant inlets. The cores are located below the refrigerant inlets and the refrigerant even distributors. Each core comprises an inner runner, an outer runner, inlet pipes and outlet pipes. Each inner runner is divided into multiple layers, identical or different kinds of cooled media can flow in the different layers of each inner runner, and the multiple layers of each inner runner where the identical kind of cooled media flow share one corresponding inlet pipe and outlet pipe. The inlet pipes and the outlet pipes penetrate the shell to stretch to the outside. The outer runners communicate with the shell.
Description
Technical field
The present invention relates to a kind of plate-fin heat exchanger, particularly relate to a kind of plate-fin heat exchanger that can be used for 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 flow through heat exchanger runner generally from top to bottom, and cold flow cryogen then backflows from bottom to top, with natural gas and hot-fluid cryogen heat exchange. The pressure drop in plate wing runner of the liquid phase of cold flow cryogen is bigger, the effect of carrying secretly relying primarily on gas phase flows up, and when operating operating mode and changing, very easily occurs gas phase cannot carry the situation of liquid phase completely secretly, cause liquid phase cold flow cryogen hydrops bottom ice chest, affect the properly functioning of whole liquefaction plant. When the liquefaction treatment scale of natural gas is bigger, it is necessary to multiple fin heat exchanger core series/parallels, and under operating mode in parallel, the natural gas flow in each heat exchanger core body is uneven, affects heat transfer effect.
In prior art, also having a kind of device being soaked in by fin heat exchanger core in the outside cryogen being contained in housing, the cooled medium in heat exchanger core body carries out heat exchange with outside cryogen; This device is prone to processing, simple to operate. But, cryogen needs before filling entrance housing to throttle through choke valve, part cryogen gasification in throttling process, cryogen flows directly into housing bottom after flowing into housing, it is unfavorable for that the gas, liquid of cryogen separates, cause being mingled with gas phase media in the plate wing runner of exchanger base, affect the heat transfer effect of this device; And in the starting stage that cryogen fills, a large amount of liquid coolant are directly come down in torrents to housing bottom, are easily caused device damage, reduction of service life.
It addition, in prior art, in plate-fin heat exchanger, the flowing of fluid is comparatively sensitive to rocking operating mode, anti-shake dynamic poor-performing, the liquefaction not being suitable on floating platform natural gas;And a heat exchanger can only cool down a kind of medium, when the treating capacity of cooled medium is bigger, it is comparatively huge that heat exchanger structure need to design, and also needs to increase cryogen containing quantity simultaneously, economical not.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of plate-fin heat exchanger that can be used for floating platform, area of natural gas liquefaction can be effectively served in more economically.
For achieving the above object, the present invention takes techniques below scheme: a kind of plate-fin heat exchanger that can be used for floating platform, it is characterised in that this heat exchanger includes a housing, it is arranged at least one the cryogen uniform device in described housing and at least one core body being arranged in described housing; Wherein, the side wall upper part of described housing is provided with at least one cryogen entrance, top is provided with a gas phase cryogen outlet, bottom is provided with the outlet of at least one liquid phase cryogen, and the outlet of described cryogen entrance, liquid phase cryogen is identical with the number of described core body with the number of cryogen uniform device, described core body exports one_to_one corresponding with described cryogen entrance, cryogen uniform device and liquid phase cryogen; Described cryogen uniform device is connected with described cryogen entrance, and described core body is positioned at the lower section of described cryogen entrance and cryogen uniform device; Described core body includes inner flow passage, outer flow passage, inlet tube and outlet, described inner flow passage is divided into multilamellar, inner flow passage energy mobile phase described in different layers with or different types of cooled medium, inner flow passage described in the multilamellar of the cooled medium of flowing identical type shares a described inlet tube and outlet, the described inner flow passage of the cooled medium of flowing variety classes uses different described inlet tubes and outlet, described inlet tube and outlet are each passed through described housing and extend out to outside, and described outer flow passage is connected with described housing.
Described core body number is 1-6.
When described core body is two or more, a weir plate it is additionally provided with in described housing, described housing is separated into the disconnected housing unit of multiple liquid phase by described weir plate, each described housing unit is all corresponding with cryogen entrance, the outlet of liquid phase cryogen and cryogen uniform device described in one, and all described housing units share the outlet of described gas phase cryogen; Each described core body lays respectively in each described housing unit, and described core body top is lower than described weir plate top.
It is connected by entrance end socket between described inner flow passage upper end and described inlet tube, is connected by outlet head between described inner flow passage lower end and described outlet, in described core body, is additionally provided with flow deflector.
Described cryogen uniform device includes extension, arm, box body and dripping hole; Described extension is connected with described cryogen entrance and stretches in described housing, many described arms are connected with described extension simultaneously, described box body is located at outside described extension and arm and fixes with the sidewall of described housing and is connected, and multiple described dripping holes are uniformly opened in the bottom of described box body.
Due to the fact that and take above technical scheme, it has the advantage that 1, the present invention by arranging cryogen uniform device, reduce cryogen and fill initial stage big quantity of fluid and topple over the device damage degree caused to housing bottom, improve cryogen gas-liquid separation effect simultaneously. 2, a core body of the present invention can cool down medium simultaneously, adds media processes amount, reduces the core body of plate-fin heat exchanger and the volume of outside housing simultaneously, and has saved cryogen consumption. 3, the present invention adopts end socket and flow deflector that cooled medium is carried out water conservancy diversion, improves the cooled medium uniform performance in the inner flow passage of fin heat exchanger core, makes cooled heat exchange between medium and cryogen more abundant.4, the present invention by arranging weir plate between core body, and improves cryogen immersion liquid level, enhances the anti-shake dynamic performance of heat exchanger, improves heat exchanger operation stability on floating platform.
Accompanying drawing explanation
Fig. 1 is the front view that the present invention adopts two core body schemes;
Fig. 2 is the top view that the present invention adopts two core body schemes;
Fig. 3 is the top view that the present invention adopts three core body schemes;
Fig. 4 is the front view of core body of the present invention;
Fig. 5 is the structural representation of core body of the present invention wherein one layer of inner flow passage;
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.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, Figure 2 and Figure 3, a kind of plate-fin heat exchanger that can be used for floating platform of the present invention, it includes a housing 1, at least one core body 2 and at least one cryogen uniform device 3. Wherein, the side wall upper part of housing 1 is provided with at least one cryogen entrance 11, and top is provided with a gas phase cryogen outlet 12, and bottom is provided with at least one liquid phase cryogen outlet 13, and cryogen entrance 11 is identical with the number of core body 2 with the number that liquid phase cryogen exports 13.
As shown in Fig. 4��Fig. 8, core body 2 is arranged in housing 1 and is positioned at below cryogen entrance 11, and each core body 2 exports 13 one_to_one corresponding with each cryogen entrance 11 and liquid phase cryogen, and the corresponding independent cryogen entrance 11 of each core body 2 and liquid phase cryogen export 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 multilamellar, different layers inner flow passage 21 can mobile phase with or different types of cooled medium, the multilamellar inner flow passage 21 of the cooled medium of flowing identical type shares a root entry pipe 23 and outlet 24, the inner flow passage 21 of the cooled medium of flowing variety classes uses different inlet tubes 23 and outlet 24, inlet tube 23 and outlet 24 are each passed through housing 1 and extend out to outside, for flowing in and out the cooled medium of identical or different kind to inner flow passage 21; Outer flow passage 22 is connected with housing 1, cryogen is uniformly distributed in outer flow passage 22, thus a core body 2 can cool down multiple cooled medium simultaneously, adds the media processes amount of single core body 2, reduce core body 2 and the volume of outside housing 1, and saved cryogen and made consumption.
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, and the number of cryogen uniform device 3 is identical with the number of core body 2, and each cryogen uniform device 3 lays respectively at the top of each core body 2. Cryogen uniform device 3 reduces cryogen and fills the device damage degree that initial stage big quantity of fluid causes to housing 1 bottom dump, improves the gas-liquid separation effect of cryogen simultaneously.
In above-described embodiment, as shown in Figure 1, Figure 2 and Figure 3, according to scale needs, core body 2 number held in housing 1 can be 1-6, to meet the demand that large-scale natural gas liquefaction processes. When core body 2 is two or more, a weir plate 4 it is provided with housing 1 to be separated into the disconnected housing unit of multiple liquid phase in housing 1, each housing unit all has corresponding cryogen entrance 11, liquid phase cryogen outlet 13 and cryogen uniform device 3, the gas phase cryogen outlet 12 at all housing unit common housing 1 tops.Each core body 2 lays respectively in each housing unit, and core body 2 top is lower than weir plate 4 top. Cryogen is injected each housing unit by cryogen entrance 11, weir plate 4 improves cryogen and soaks liquid level, makes liquid level on cryogen concordant with the height of the inner flow passage 21 of core body 2, it is possible to reduce liquid fluctuating when heat exchanger tilts, effectively prevent heat exchange efficiency from declining, enhance the anti-shake dynamic performance of heat exchanger; And the corresponding cryogen entrance 11 of each core body 2 and liquid phase cryogen outlet 13, improve heat exchanger operation stability on floating platform.
In above-described embodiment, as shown in Fig. 4��Fig. 6, it is connected by entrance end socket 25 between inner flow passage 21 upper end and the inlet tube 23 of core body 2, it is connected by outlet head 26 between inner flow passage 21 lower end and outlet 24, flow deflector 27 it is additionally provided with in core body 2, when cooled medium flows in and out core body 2, it is respectively adopted entrance end socket 25 and outlet head 26 carries out uniform fluid distribution, water conservancy diversion is carried out again by flow deflector 27, cooled medium uniform performance inner flow passage 21 in is greatly improved, make cooled heat exchange between medium and cryogen more abundant, enhance 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, arm 32, box body 33 and dripping hole 34, wherein, extension 31 is connected with cryogen entrance 11 and stretches in housing 1, multiple arms 32 are connected with extension 31 simultaneously, and box body 33 is located at outside extension 31 and arm 32 and fixes with housing 1 sidewall and is connected, and multiple dripping holes 34 are uniformly opened in the bottom of box body 33. Cryogen is entered extension 31 by cryogen entrance 11, then sprayed by multiple arms 32, liquid phase separation is carried out in box body 33, gas phase cryogen is to housing 1 upper flow, and liquid phase cryogen is flowed in housing 1 by dripping hole 34, it is to avoid cryogen is in a large number to housing 1 bottom dump, thus reducing the damaged condition of equipment, increase the service life, make the more efficient separation of the liquid phase in cryogen simultaneously, increase the heat transfer effect of cryogen and cooled medium.
The present invention is in use, different types of cooled medium flows into the different layers inner flow passage 21 of core body 2 respectively through different inlet tubes 23 and entrance end socket 25 from top to down, cryogen is flowed in housing 1 to operating liquid level through cryogen uniform device 3 by cryogen entrance 11, operation liquid level is highly substantially concordant with the inner flow passage 21 of core body 2, and cryogen is uniformly distributed in the outer flow passage 22 of core body 2. Different types of cooled medium cools down through cryogen, and temperature is gradually lowered, and flows out through different outlet head 26 and outlet 24 respectively, thus cool down two or more cooled media simultaneously; Liquid phase cryogen heat absorbing part gasifies, the gas phase cryogen of formation, the gas phase cryogen at housing 1 top export 12 outflows, and the liquid phase cryogen not undergone phase transition is exported 13 outflows by the liquid phase cryogen bottom housing 1. Liquid phase cryogen evaporation process produces siphonage power, drives cryogen to flow in housing 1 inner loop, make the device of heat exchanger more simplify, operate simpler.
The various embodiments described above are merely to illustrate the present invention; wherein each parts structure, position and connected mode etc. thereof are set all can be varied from; every equivalents carried out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (6)
1. the plate-fin heat exchanger that can be used for floating platform, it is characterised in that this heat exchanger includes
One housing,
It is arranged at least one the cryogen uniform device in described housing, and
It is arranged at least one core body in described housing;
Wherein, the side wall upper part of described housing is provided with at least one cryogen entrance, top is provided with a gas phase cryogen outlet, bottom is provided with the outlet of at least one liquid phase cryogen, and the outlet of described cryogen entrance, liquid phase cryogen is identical with the number of described core body with the number of cryogen uniform device, described core body exports one_to_one corresponding with described cryogen entrance, cryogen uniform device and liquid phase cryogen; Described cryogen uniform device is connected with described cryogen entrance, and described core body is positioned at the lower section of described cryogen entrance and cryogen uniform device;
Described core body includes inner flow passage, outer flow passage, inlet tube and outlet, described inner flow passage is divided into multilamellar, inner flow passage energy mobile phase described in different layers with or different types of cooled medium, inner flow passage described in the multilamellar of the cooled medium of flowing identical type shares a described inlet tube and outlet, the described inner flow passage of the cooled medium of flowing variety classes uses different described inlet tubes and outlet, described inlet tube and outlet are each passed through described housing and extend out to outside, and described outer flow passage is connected with described housing.
2. a kind of plate-fin heat exchanger that can be used for floating platform as claimed in claim 1, it is characterised in that described core body number is 1-6.
3. a kind of plate-fin heat exchanger that can be used for floating platform as claimed in claim 2, it is characterized in that, when described core body is two or more, a weir plate it is additionally provided with in described housing, described housing is separated into the disconnected housing unit of multiple liquid phase by described weir plate, each described housing unit is all corresponding with cryogen entrance, the outlet of liquid phase cryogen and cryogen uniform device described in one, and all described housing units share the outlet of described gas phase cryogen; Each described core body lays respectively in each described housing unit, and described core body top is lower than described weir plate top.
4. a kind of plate-fin heat exchanger that can be used for floating platform as described in claim 1 or 2 or 3, it is characterized in that, it is connected by entrance end socket between described inner flow passage upper end and described inlet tube, it is connected by outlet head between described inner flow passage lower end and described outlet, in described core body, is additionally provided with flow deflector.
5. a kind of plate-fin heat exchanger that can be used for floating platform as described in claim 1 or 2 or 3, it is characterised in that described cryogen uniform device includes extension, arm, box body and dripping hole; Described extension is connected with described cryogen entrance and stretches in described housing, many described arms are connected with described extension simultaneously, described box body is located at outside described extension and arm and fixes with the sidewall of described housing and is connected, and multiple described dripping holes are uniformly opened in the bottom of described box body.
6. a kind of plate-fin heat exchanger that can be used for floating platform as claimed in claim 4, it is characterised in that described cryogen uniform device includes extension, arm, box body and dripping hole; Described extension is connected with described cryogen entrance and stretches in described housing, multiple described arms are connected with described extension simultaneously, described box body is located at outside described extension and arm and fixes with described housing sidewall and is connected, and multiple described dripping holes are uniformly opened in bottom described box body.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105651086A true CN105651086A (en) | 2016-06-08 |
| CN105651086B CN105651086B (en) | 2017-08-11 |
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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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Cited By (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 |
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| US5597037A (en) * | 1994-03-07 | 1997-01-28 | Kabushiki Kaisha Kobe Seiko Sho | Heat exchanging apparatus |
| JPH11183063A (en) * | 1997-12-19 | 1999-07-06 | Abb Kk | Plate heat exchanger |
| WO2001057452A1 (en) * | 2000-02-01 | 2001-08-09 | Alfa Laval Corporate Ab. | Heater and/or cooler |
| 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 |
-
2016
- 2016-02-26 CN CN201610108041.1A patent/CN105651086B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597037A (en) * | 1994-03-07 | 1997-01-28 | Kabushiki Kaisha Kobe Seiko Sho | Heat exchanging apparatus |
| JPH11183063A (en) * | 1997-12-19 | 1999-07-06 | Abb Kk | Plate heat exchanger |
| WO2001057452A1 (en) * | 2000-02-01 | 2001-08-09 | Alfa Laval Corporate Ab. | Heater and/or cooler |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN105651086B (en) | 2017-08-11 |
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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 |