CN201246987Y - Phase-change heat exchanger - Google Patents

Phase-change heat exchanger Download PDF

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Publication number
CN201246987Y
CN201246987Y CNU2008200599959U CN200820059995U CN201246987Y CN 201246987 Y CN201246987 Y CN 201246987Y CN U2008200599959 U CNU2008200599959 U CN U2008200599959U CN 200820059995 U CN200820059995 U CN 200820059995U CN 201246987 Y CN201246987 Y CN 201246987Y
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CN
China
Prior art keywords
heat
heat exchanging
communicated
tube bundle
collecting header
Prior art date
Application number
CNU2008200599959U
Other languages
Chinese (zh)
Inventor
王云龙
Original Assignee
王云龙
王海平
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王云龙, 王海平 filed Critical 王云龙
Priority to CNU2008200599959U priority Critical patent/CN201246987Y/en
Application granted granted Critical
Publication of CN201246987Y publication Critical patent/CN201246987Y/en

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Abstract

The utility model relates to the field of heat exchanging, which particularly relates to a heat exchanging device which adopts vacuum phase change to change heat, and can be applied in various heat exchanging fields, in particular to the smoke gas residual heat recycling filed. The heat exchanging device which adopts vacuum phase change to change heat comprises a lower collecting header, a smoke-gas lateral heat exchanging pipe bundle, an upper collecting header, a steam ascending pipe, a steam drum, a heat exchanging pipe bundle and a coagulation-liquid downcomer, wherein the upper collecting header and the lower collecting header are communicated through the smoke-gas lateral heat exchanging pipe bundle which is arranged in parallel, the upper portion of the upper collecting header is communicated with the lower end of the steam ascending pipe, the upper end of the steam ascending pipe is communicated with the steam drum in which the heat exchanging pipe bundle is provided, and the steam drum is further arranged on the upper portion of the upper collecting header, the upper end of the coagulation-liquid downcomer is communicated with the steam drum, and the lower end thereof is communicated with the lower collecting header. The heat exchanging device solves the technical problems that a smoke-gas lateral pipeline of a heat exchanging device of an existing device is easily corroded by acid dew points, and the device is led to be damaged, and can prolong the service span of equipment.

Description

Phase-change heat-exchanger

Technical field:

The utility model relates to the heat exchange field, particularly a kind of heat-exchanger rig that adopts the phase transition of vacuum heat exchange, and it can be applied in various heat exchange field, particularly flue gas waste heat recovery field.

Background technology:

Present heat recovery heat exchanger is divided into following several substantially: 1, the most frequently used a kind of be that flue gas and heated medium directly carry out heat exchange, be called conventional heat exchanger; 2, heat exchange of heat pipe is formed heat exchanger by independently single pipe in a large number, heated medium not directly and flue gas heat exchange, behind flue gas and the heat pipe heat exchanging, heat pipe carries out heat exchange with heated medium again.

But the fume side pipeline of existing heat exchange of heat pipe is subjected to acid dew piont corrosion easily, causes the damage of equipment and the reduction in service life.

The utility model content:

The purpose of this utility model is to provide a kind of phase-change heat-exchanger, and the fume side pipeline that mainly solves the heat exchange of heat pipe of existing apparatus is subjected to acid dew piont corrosion easily, causes the technical problem of the damage of equipment, can prolong the service life of equipment.

For achieving the above object, the utility model is achieved in that

A kind of phase-change heat-exchanger is characterized in that: it comprises next part case, fume side heat-exchanging tube bundle, upper collecting chamber, vapor uptake, drum, heat-exchanging tube bundle and condensation water down-comer; Be communicated with by the fume side heat-exchanging tube bundle that be arranged in parallel between this upper collecting chamber and the next part case, this upper collecting chamber top is communicated with the lower end of vapor uptake, has the drum of heat-exchanging tube bundle in the upper end of vapor uptake is communicated with, and this drum also is arranged at the upper collecting chamber top; The upper end of condensation water down-comer is communicated with drum, the lower end is communicated with the next part case.

Described phase-change heat-exchanger is characterized in that: this fume side heat-exchanging tube bundle is made up of finned-tube bundle.

Described phase-change heat-exchanger is characterized in that: heat-exchanging tube bundle is one or more groups in this drum, and the inside is filled with fluid media (medium).

The purpose of this utility model is to provide a kind of phase-change heat-exchanger under the confined space state, and the characteristics of its maximum are

By said structure, the utlity model has following characteristics:

1, the utility model can be adjusted the tube wall temperature of heating surface fume side flexibly by the vapor (steam) temperature of control in the heat exchanger, makes it to be in more than the flue gas acid dew point forever, thereby has thoroughly avoided the acid dew piont corrosion of fume side; Owing to be under the air-tight state, steam side is under the anaerobic state, and heating surface oxygen corrosion can not take place; Steam is in the space of a sealing, can not lose, and can use any water quality, can not produce incrustation scale; Phase-change heat-exchanger can be used for heating the fluid of other form simultaneously, and this fluid comprises gas and liquid, vapour-liquid heterogeneous fluid; The medium that produces phase transformation in the heat exchanger can be a water, also can be other liquid, can adjust as required.The system vapor (steam) temperature is adjusted the fume side tube wall temperature more than acid dew point, prevents corrosion.

2, secondary heat exchange tube bank of the present utility model can be arranged many groups simultaneously, is used for heating different fluids.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Among the figure:

1-next part case;

2-fume side heat-exchanging tube bundle;

3-upper collecting chamber (vapor space);

The 4-vapor uptake;

The 5-drum;

Heat-exchanging tube bundle in the 6-drum;

7-condensation water down-comer.

The specific embodiment:

See also Fig. 1, it is the structural representation of the utility model phase-change heat-exchanger.As shown in the figure: it comprises next part case 1, fume side heat-exchanging tube bundle 2, upper collecting chamber 3, vapor uptake 4, drum 5, heat-exchanging tube bundle 6 and condensation water down-comer 7.Be communicated with by the fume side heat-exchanging tube bundle 2 that be arranged in parallel between this upper collecting chamber 3 and the next part case 1, these upper collecting chamber 3 tops are communicated with the lower end of vapor uptake 4, have the drum 5 of heat-exchanging tube bundle in the upper end of vapor uptake 4 is communicated with, this drum 5 also is arranged at upper collecting chamber 3 tops; The upper end of condensation water down-comer 7 is communicated with drum 5, the lower end is communicated with next part case 1.

This next part case 1 and upper collecting chamber 3 are to be welded by steel pipe, and vapor uptake 4 is made up of light pipe,, fume side heat-exchanging tube bundle 2 is made up of finned-tube bundle, and heat-exchanging tube bundles 6 are one or more groups in the drum 5, and the inside is filled with fluid media (medium).

During use, sweep of gases heat-exchanging tube bundle 2, the heat of flue gas is passed to the liquid in the tube bank 2, liquid heat absorption evaporation, the steam that produces enters upper collecting chamber 3, steam in the upper collecting chamber 3 enters drum 5 by vapor uptake 4, steam and heat-exchanging tube bundle 6 heat exchange in the drum 5, and heat is passed to the heated medium in the tube bank 6; Become liquid after the steam cooling in the drum 5 and enter next part case 1 through condensation water down-comer 7, the liquid in the next part case 1 is got back to heat-exchanging tube bundle 2, heat exchange so repeatedly again.

The course of work of the phase-change heat-exchanger of the utility model product is:

1, water becomes the endothermic process of steam: the abundant heat exchange of heating surface of (utilize water to become the endothermic process of steam, the flue gas liberated heat is passed to steam) flue gas and phase-change heat-exchanger.Heat is absorbed the water of passing in the heat exchanger by heating surface, and water is subjected to thermal evaporation to produce steam;

2, steam becomes the exothermic process of water: (utilize steam to become the exothermic process of water, the heat transferred that steam is contained is heated fluid) steam evaporation enters the heat-exchanging tube bundle of the phase-change heat-exchanger top vapor space, undergoes phase transition heat exchange with the heat-exchanging tube bundle wall.Heat is by the absorption of fluids that is heated in the heat-exchanging tube bundle;

3, the condensed water behind the steam phase transforming relies on self gravitation to fall into hydrospace, phase-change heat-exchanger bottom, continues to be heated evaporation, so moves in circles.

Being preferred embodiment of the present utility model only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present utility model.

Claims (3)

1, a kind of phase-change heat-exchanger is characterized in that: it comprises next part case (1), fume side heat-exchanging tube bundle (2), upper collecting chamber (3), vapor uptake (4), drum (5), heat-exchanging tube bundle (6) and condensation water down-comer (7); Be communicated with by the fume side heat-exchanging tube bundle (2) that be arranged in parallel between this upper collecting chamber (3) and the next part case (1), this upper collecting chamber (3) top is communicated with the lower end of vapor uptake (4), the drum (5) that has heat-exchanging tube bundle in the upper end of vapor uptake (4) is communicated with, this drum (5) also are arranged at upper collecting chamber (3) top; The upper end of condensation water down-comer (7) is communicated with drum (5), the lower end is communicated with next part case (1).
2, phase-change heat-exchanger according to claim 1 is characterized in that: this fume side heat-exchanging tube bundle (2) is made up of finned-tube bundle.
3, phase-change heat-exchanger according to claim 1 and 2 is characterized in that: the interior heat-exchanging tube bundle of this drum (5) (6) is one or more groups, and the inside is filled with fluid media (medium).
CNU2008200599959U 2008-06-20 2008-06-20 Phase-change heat exchanger CN201246987Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200599959U CN201246987Y (en) 2008-06-20 2008-06-20 Phase-change heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200599959U CN201246987Y (en) 2008-06-20 2008-06-20 Phase-change heat exchanger

Publications (1)

Publication Number Publication Date
CN201246987Y true CN201246987Y (en) 2009-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200599959U CN201246987Y (en) 2008-06-20 2008-06-20 Phase-change heat exchanger

Country Status (1)

Country Link
CN (1) CN201246987Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101629713B (en) * 2009-08-19 2011-06-22 深圳中兴科扬节能环保股份有限公司 Flue gas afterheat recovery system
CN102200403A (en) * 2011-06-28 2011-09-28 北京圆能工业技术有限公司 Branch-control and phase-change heat exchange system and method based on two-stage steam-liquid heat exchanger
CN102910693A (en) * 2012-10-23 2013-02-06 江苏中圣高科技产业有限公司 Zero liquid emission method and system based on low temperature energy utilization
CN102927548A (en) * 2012-12-10 2013-02-13 南京圣诺热管有限公司 Afterheat recycling device and method of high temperature flue gas containing high adhesive dust
CN103672833A (en) * 2013-06-09 2014-03-26 青岛德固特节能装备股份有限公司 Novel shock cooling type waste heat boiler
CN105222120A (en) * 2015-09-17 2016-01-06 苏州新协力特种工业模板有限公司 A kind of Novel integral heat pipe economizer
CN106987678A (en) * 2017-04-14 2017-07-28 河钢股份有限公司承德分公司 Diffusing tower anti-icing equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101629713B (en) * 2009-08-19 2011-06-22 深圳中兴科扬节能环保股份有限公司 Flue gas afterheat recovery system
CN102200403A (en) * 2011-06-28 2011-09-28 北京圆能工业技术有限公司 Branch-control and phase-change heat exchange system and method based on two-stage steam-liquid heat exchanger
CN102200403B (en) * 2011-06-28 2013-03-20 北京圆能工业技术有限公司 Branch-control and phase-change heat exchange system and method based on two-stage steam-liquid heat exchanger
CN102910693A (en) * 2012-10-23 2013-02-06 江苏中圣高科技产业有限公司 Zero liquid emission method and system based on low temperature energy utilization
CN102927548A (en) * 2012-12-10 2013-02-13 南京圣诺热管有限公司 Afterheat recycling device and method of high temperature flue gas containing high adhesive dust
CN103672833A (en) * 2013-06-09 2014-03-26 青岛德固特节能装备股份有限公司 Novel shock cooling type waste heat boiler
CN103672833B (en) * 2013-06-09 2016-10-12 青岛德固特节能装备股份有限公司 quenching waste heat boiler
CN105222120A (en) * 2015-09-17 2016-01-06 苏州新协力特种工业模板有限公司 A kind of Novel integral heat pipe economizer
CN106987678A (en) * 2017-04-14 2017-07-28 河钢股份有限公司承德分公司 Diffusing tower anti-icing equipment

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090527

Termination date: 20110620