CN2872269Y - Improved equal flow-speed gas-liquid heat exchanger - Google Patents
Improved equal flow-speed gas-liquid heat exchanger Download PDFInfo
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- CN2872269Y CN2872269Y CN 200520124971 CN200520124971U CN2872269Y CN 2872269 Y CN2872269 Y CN 2872269Y CN 200520124971 CN200520124971 CN 200520124971 CN 200520124971 U CN200520124971 U CN 200520124971U CN 2872269 Y CN2872269 Y CN 2872269Y
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- heat exchanger
- liquid
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- uniform flow
- steam
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Abstract
A second-generation uniform flow gas-liquid heat exchanger relates to the heat engineering equipment area, which comprises shell covers (13), (7) and a heat exchanger body (10), characterized in: a group of short heat exchange tubes (12) and a deflector plate (9) are mounted inside the heat exchanger body (10), the heat exchanger body (10) is equipped with an inlet and an outlet of cooling water/liquid, the upper shell cover (13) provided with a steam inlet (14) above and a steam clapboard (1) in the middle is installed on the upper end of the heat exchanger body (10), the lower shell cover (7) provided with a hole at the bottom is connected to the concentrated bleeder tube (6), and the shell covers (13), (7) are connected to the heat exchanger body (10) by flanged connection. The utility model can realize a timely separation of the condensate from the steam through the whole process, drain the liquid membrane condensed on the heat transfer surface, and keep the condensed surface of each tube section as an instable thin liquid membrane or a dropwise condensation form, thus lowering the thermal resistance and increasing the heat transfer coefficient. Meantime, the utility model has advantages of simple processing, no need for any special processing technique, low cost, high reliability, great raw material saving, no increase in any running cost and so on.
Description
Technical field
Modified uniform flow vapour-liquid heat exchanger belongs to the Thermal Equipment field.
Background technology
At present, all kinds of heat exchangers adopt gas or liquid medium usually.Wall condensation water film resistance is the main thermal resistance place of condensation heat transfer, hinders contacting of steam and wall, and along with the increase liquid film progressive additive of tube side, promptly thermal resistance increases with tube side.Along with condensing of steam, quantity of steam reduces gradually, and flow velocity obviously descends, the reduction condensation effect, and the coefficient of heat transfer reduces.Complicated two phase flow makes the heat exchange area utilization abundant inadequately in steam quality is significantly less than 1 pipeline section, causes heat exchanger volume, weight bigger, makes and the operating cost height.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of the realize condensation water of whole process and in time separating of steam are provided, the liquid film that condenses on the heat-transfer surface is drained, keeping each pipeline section condensation surface is unstable thin liquid film or dropwise condensation form, reduce thermal resistance with this, improve the modified uniform flow vapour-liquid heat exchanger of the coefficient of heat transfer.
The technical scheme that its technical problem that solves the utility model adopts is: modified uniform flow vapour-liquid heat exchanger, comprise end socket, heat exchanger body, it is characterized in that: settle short set of heat exchange tubes in the heat exchanger body, deflection plate, heat exchanger body is equipped with cooling water/liquid and advances, outlet, upper cover is installed in the upper end of heat exchanger body, on steam inlet is arranged, there is the steam dividing plate centre, this heat exchanger adopts the vapour-liquid type of flow of in-tube condensation, steam entering part set of heat exchange tubes, carry out heat exchange and partial condensation with the outer cooling water/liquid of pipe, utilize under the gravity multistage short tube to realize that vapour-liquid separates automatically, steam directly contact with heat exchange surface and keep the higher coefficient of heat transfer, improved the shortcoming of the coefficient of heat transfer decline that liquid film covering heat exchange surface causes in traditional condensing plant.
Heat exchanger body is one-level or two-stage or multistage.Heat exchanger body is that two-stage or two-stage are when above, connect with tube sheet between the two-stage heat exchanger body, vapor-liquid separation chamber is arranged in the middle of two tube sheets, higher level's heat exchanger body has cooling water/liquid outlet topmost, the final stage lowermost end has cooling water/liquid import, and cooling water/liquid is linked to each other by tube connector between the two-stage heat exchanger body.Cooling water/liquid import is arranged on the lowermost end of heat exchanger body, is convenient to blowdown, omits blow-off pipe.Cooling water/liquid outlet is arranged on the top of heat exchanger body, helps gas and steam discharge in cooling water/liquid, saves air bleeding valve, guarantees stable and safety.
Deflection plate is tabular, is provided with the heat exchange pore, is vertically mounted on every grade of set of heat exchange tubes, is one or two or polylith, the staggered installation.Mainly be the effect that increases flow process, realized heat exchange preferably.
The low head bottom concentrates discharging tube to be provided with a vapor-liquid separating device, is made up of the several layers wire netting.Can intercept steam and enter concentrated discharging tube.
Tube connector is arranged on tube sheet inside.Be provided with a bending type steam dividing plate in the middle of the vapor-liquid separation chamber.Can control the set of heat exchange tubes number more neatly, make full use of the heat transfer effect that each root pipe is strengthened and given full play to structure distribution.Also can be designed to tabular.
Load is at 0.7-8.4MW, and short set of heat exchange tubes length is at 200-1400mm.
Tube connector is arranged on tube sheet inside.Attractive in appearance, reduce volume.
Compared with prior art, the beneficial effect that the utility model had is: this heat exchanger adopts the vapour-liquid type of flow of in-tube condensation, steam entering part set of heat exchange tubes, carry out heat exchange and partial condensation with the outer cooling water/liquid of pipe, utilize under the gravity multistage short tube to realize that vapour-liquid separates automatically, steam directly contact with heat exchange surface and keep the higher coefficient of heat transfer, improved the shortcoming of the coefficient of heat transfer decline that liquid film covering heat exchange surface causes in traditional condensing plant; Cooling water/liquid import is arranged on the lowermost end of heat exchanger body, is convenient to blowdown, has omitted blow-off pipe; Cooling water/liquid outlet is arranged on the top of heat exchanger body, and the gas and the steam that help in cooling water/liquid are discharged, and have saved air bleeding valve, guarantee stable, safety.The indoor bending type steam baffle that is provided with of vapor-liquid separation in the middle of the two-stage can be controlled the set of heat exchange tubes number more neatly.Reduce step by step along steam flow heat exchanger tube number, can control steam flow rate flexibly, improve heat exchange efficiency effectively, make full use of the heat exchanger space, reduce heat exchanger volume and weight.Minimizing reduction circulation area along with quantity of steam makes steam flow rate at the basic uniformity of whole process, keeps almost having identical condensation heat transfer effect, gives full play to the potentiality of heat exchanger tube.It is simple to have processing simultaneously, does not need any special processing technology, and cost is low, and the reliability height saves material, do not increase advantages such as any operating cost greatly.
Description of drawings
Fig. 1 is that the utility model modified uniform flow vapour-liquid heat exchanger structure cuts open and shows schematic diagram;
Fig. 2 is the A-A cut-away view of Fig. 1.
Wherein: 1 steam dividing plate, 2 cooling waters/liquid exports 3 tube sheets, 4 vapor-liquid separation chamber, 5 cooling waters/liquid import 6 and concentrates discharging tube 7 low heads 8 vapor-liquid separating devices 9 deflection plates 10 heat exchanger bodies 11 tube connectors 12 set of heat exchange tubes 13 upper covers 14 steam inlets 15 bending dividing plates.
The specific embodiment
Below in conjunction with Fig. 1-2 the utility model modified uniform flow vapour-liquid heat exchanger is described further: this device is made up of steam dividing plate 1, cooling water/liquid outlet 2, tube sheet 3, vapor-liquid separation chamber 4, cooling water/liquid import 5, concentrated discharging tube 6, low head 7, vapor-liquid separating device 8, deflection plate 9, heat exchanger body 10, tube connector 11, set of heat exchange tubes 12, upper cover 13, steam inlet 14, bending dividing plate 15.Settle short set of heat exchange tubes 12, deflection plate 9 in the heat exchanger body 10, deflection plate 9 is tabular, is provided with the heat exchange pore, and vertical interlaced is installed on every grade of set of heat exchange tubes 12, is one or two or polylith.Higher level's heat exchanger body 10 has cooling water/liquid outlet 2 topmost, and lowermost end has cooling water/liquid import 5, and 10 cooling water/liquid of two-stage heat exchanger body are linked to each other by tube connector 11, and tube connector 11 is arranged on tube sheet 3 inside.Upper cover 13 is installed in the upper end of heat exchanger body 10, on steam inlet 14 is arranged, there is steam dividing plate 1 centre, low head 7 bottom opening link to each other with concentrated discharging tube 6, low head 7 bottoms concentrate discharging tube 6 to be provided with vapor-liquid separating device 8, and vapor-liquid separating device 8 is made up of the several layers wire netting.Be connected with flange between upper cover 13, low head 7 and the heat exchanger body 10.Heat exchanger body 10 is one-level or two-stage or multistage.The utility model is a two-stage, connects with tube sheet 3 between the two-stage heat exchanger body 10, in the middle of two tube sheets 3 vapor-liquid separation chamber 4 is arranged, and is provided with a bending type steam dividing plate 15 in the middle of the vapor-liquid separation chamber 4.
This modified uniform flow vapour-liquid heat exchanger load is at 0.7-8.4MW, and short set of heat exchange tubes 12 length are at 200-1400mm.
The bending dividing plate also can be designed to tabular as required.
The operation principle and the course of work are:
Cooling water/liquid enters heat exchanger body 10 by subordinate's cooling water/liquid import 5, in 9 times several flow processs of process of baffle groups, carry out entering higher level's heat exchanger body 10 by interconnecting tube 11 after the heat exchange with set of heat exchange tubes 12, in 9 times several flow processs of process of baffle groups, carry out finally discharging after the heat exchange by cooling water/liquid outlet 2 with set of heat exchange tubes 12.
Steam enters heat exchanger upper cover 13 by steam inlet 14, enters the part heat exchanger tube of set of heat exchange tubes 12 under the obstruct of steam dividing plate 1 downwards, carries out heat exchange and partial condensation with the outer cooling water/liquid of pipe.4 realization vapour-liquids are separated automatically in vapor-liquid separation chamber, condensation water enters low head 7 under the effect of gravity, steam enters the part heat exchanger tube of subordinate's heat exchanger body set of heat exchange tubes 12 under the obstruct of bending dividing plate 15, carry out heat exchange and further condensation with the outer cooling water/liquid of pipe.Steam is through upwards entering the part heat exchanger tube of subordinate's set of heat exchange tubes 12 behind the low head 7, with the outer cooling water/liquid heat exchange condensation of pipe, condensation water is back to low head 7 under gravity, steam upwards enters the part heat exchanger tube of higher level's Tube Sheet of Heat Exchanger group 12, carry out the further condensation of heat exchange with the outer cooling water/liquid of pipe, condensation water is back to low head 7 under gravity.Condensation water in the low head 7 is discharged by concentrated discharging tube 6.
Cooling water/liquid import 5 is arranged on the lowermost end of heat exchanger body 10, is convenient to blowdown.Cooling water/liquid outlet 2 is arranged on the top of heat exchanger body 10, helps discharging with the gas in cooling water/liquid with because of heating the steam that produces.In low head 7, concentrate on the discharging tube 6 and be provided with a vapor-liquid separating device 8, mainly contain the several layers wire netting and form, can intercept steam and enter concentrated discharging tube 6.
Bending dividing plate 15 in the vapor-liquid separation chamber 4 adopts bending structure, can control set of heat exchange tubes 12 numbers more neatly, makes full use of the heat transfer effect that each root heat exchanger tube is strengthened and given full play to structure distribution.
Claims (10)
1, modified uniform flow vapour-liquid heat exchanger, comprise end socket (13), (7), heat exchanger body (10), it is characterized in that: settle short set of heat exchange tubes (12), deflection plate (9) in the heat exchanger body (10), heat exchanger body (10) is equipped with cooling water/liquid import and export, upper cover (13) is installed in the upper end of heat exchanger body (10), on steam inlet (14) is arranged, there is steam dividing plate (1) centre, low head (7) bottom opening links to each other with concentrated discharging tube (6), is connected with flange between end socket (13), (7) and the heat exchanger body (10).
2, modified uniform flow vapour-liquid heat exchanger according to claim 1 is characterized in that: heat exchanger body (10) is one-level or two-stage or multistage.
3, modified uniform flow vapour-liquid heat exchanger according to claim 2, it is characterized in that: heat exchanger body (10) is two-stage or two-stage when above, connect with tube sheet (3) between the two-stage heat exchanger body (10), vapor-liquid separation chamber (4) is arranged in the middle of two tube sheets (3), there is cooling water/liquid outlet (2) higher level's heat exchanger body (10) upper end, there is cooling water/liquid import (5) the final stage bottom, and cooling water/liquid is linked to each other by tube connector (11) between two-stage heat exchanger body (10).
4, modified uniform flow vapour-liquid heat exchanger according to claim 1 is characterized in that: deflection plate (9) is provided with the heat exchange pore for tabular, be vertically mounted on every grade of set of heat exchange tubes (12), and be one or two or polylith.
5, modified uniform flow vapour-liquid heat exchanger according to claim 4 is characterized in that: deflection plate (9) is staggered to be installed.
6, modified uniform flow vapour-liquid heat exchanger according to claim 1 is characterized in that: low head (7) bottom concentrates discharging tube (6) to be provided with vapor-liquid separating device (8).
7, modified uniform flow vapour-liquid heat exchanger according to claim 6, it is characterized in that: vapor-liquid separating device (8) is made up of the several layers wire netting.
8, modified uniform flow vapour-liquid heat exchanger according to claim 3, it is characterized in that: tube connector (11) is arranged on tube sheet (3) inside.
9, modified uniform flow vapour-liquid heat exchanger according to claim 3 is characterized in that: be provided with a bending dividing plate (15) in the middle of the vapor-liquid separation chamber (4).
10, modified uniform flow vapour-liquid heat exchanger according to claim 1 is characterized in that: load is at 0.7-8.4MW, and short set of heat exchange tubes 4 length are at 200-1400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124971 CN2872269Y (en) | 2005-11-22 | 2005-11-22 | Improved equal flow-speed gas-liquid heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124971 CN2872269Y (en) | 2005-11-22 | 2005-11-22 | Improved equal flow-speed gas-liquid heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN2872269Y true CN2872269Y (en) | 2007-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520124971 Expired - Fee Related CN2872269Y (en) | 2005-11-22 | 2005-11-22 | Improved equal flow-speed gas-liquid heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215927A (en) * | 2008-09-17 | 2011-10-12 | 纯净源公司 | Large-scale water purification and desalination |
| CN103791744A (en) * | 2014-01-21 | 2014-05-14 | 郑州四维淀粉技术开发有限公司 | Double-phase-change latent heat exchanger |
| CN104075489A (en) * | 2014-07-19 | 2014-10-01 | 烟台明辉热泵节能科技有限公司 | High-temperature steam heat pump unit |
| CN104390495A (en) * | 2014-12-03 | 2015-03-04 | 北京交通大学 | Undercooling type condensation heat exchanger and heat exchange method thereof |
| CN104457309A (en) * | 2014-12-03 | 2015-03-25 | 北京交通大学 | Tubular condensation heat exchanger and heat exchange method thereof |
| CN107664440A (en) * | 2017-11-17 | 2018-02-06 | 四川沃姆斯科技有限公司 | A kind of high-performance heat exchanger |
-
2005
- 2005-11-22 CN CN 200520124971 patent/CN2872269Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215927A (en) * | 2008-09-17 | 2011-10-12 | 纯净源公司 | Large-scale water purification and desalination |
| US9802836B2 (en) | 2008-09-17 | 2017-10-31 | Sylvan Source, Inc. | Large-scale water purification and desalination |
| CN103791744A (en) * | 2014-01-21 | 2014-05-14 | 郑州四维淀粉技术开发有限公司 | Double-phase-change latent heat exchanger |
| CN103791744B (en) * | 2014-01-21 | 2017-02-08 | 郑州四维淀粉技术开发有限公司 | Double-phase-change latent heat exchanger |
| CN104075489A (en) * | 2014-07-19 | 2014-10-01 | 烟台明辉热泵节能科技有限公司 | High-temperature steam heat pump unit |
| CN104390495A (en) * | 2014-12-03 | 2015-03-04 | 北京交通大学 | Undercooling type condensation heat exchanger and heat exchange method thereof |
| CN104457309A (en) * | 2014-12-03 | 2015-03-25 | 北京交通大学 | Tubular condensation heat exchanger and heat exchange method thereof |
| CN104390495B (en) * | 2014-12-03 | 2016-09-07 | 北京交通大学 | A kind of Overcold condensing heat exchanger and heat-exchange method thereof |
| CN104457309B (en) * | 2014-12-03 | 2016-09-07 | 北京交通大学 | A kind of tubular condensing heat exchanger and heat-exchange method thereof |
| CN107664440A (en) * | 2017-11-17 | 2018-02-06 | 四川沃姆斯科技有限公司 | A kind of high-performance heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Zaochun-Trywow Heatpump Technology Co., Ltd. Assignor: Zibo Trywow Central Air Conditioner Co., Ltd. Contract fulfillment period: 2008.2.10 to 2014.2.9 Contract record no.: 2009370000285 Denomination of utility model: Improved equal flow-speed gas-liquid heat exchanger Granted publication date: 20070221 License type: Exclusive license Record date: 20090916 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.2.10 TO 2014.2.9; CHANGE OF CONTRACT Name of requester: SHANDONG ZAOCHUN-TYWOW HEATPUMP TECHNOLOGY CO., LT Effective date: 20090916 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20111122 |