CN2867260Y - Separating type heat pipe heat exchanger for heat transfering of flue gas desulfurizing - Google Patents
Separating type heat pipe heat exchanger for heat transfering of flue gas desulfurizing Download PDFInfo
- Publication number
- CN2867260Y CN2867260Y CN 200520145956 CN200520145956U CN2867260Y CN 2867260 Y CN2867260 Y CN 2867260Y CN 200520145956 CN200520145956 CN 200520145956 CN 200520145956 U CN200520145956 U CN 200520145956U CN 2867260 Y CN2867260 Y CN 2867260Y
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- CN
- China
- Prior art keywords
- heat
- pipe
- flue gas
- heat exchange
- bobbin carriage
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Abstract
A separate heat pipe exchanger for heat exchange during flue gas desulfurization is provided. Heat pipes are arranged in parallel rows and their two ends are weld in and communicated with two box-connecting pipes respectively. The heat pipes are disposed inside a box provided with a flue gas outlet. A connection pipe is provided in and communicated with each box-connecting pipe and directed through a corresponding hole on the box and extended out of the box. The box and the heat pipes inside form two heat exchange units provided with the same numbers of heat pipe row. Two ends of each heat pipe row in the heat absorption unit are connected to two ends of the corresponding heat pipe row in the heat release unit by using connection pipes and external connection pipes, forming independent circulation loops. The utility model has reduced energy consumption, low operating cost, high heat exchange efficiency, long service life, high safety and reliability, and convenience in ash removal.
Description
Technical field the utility model relates to a kind of heat pipe, especially for the heat pipe of the forward and backward heat exchange of flue gas desulfurization.
Background technology reaches environmental requirement in order to make boiler or heating furnace discharged flue gas, manyly large-scalely all adopts wet desulfurizing process to remove sulfur in smoke with coal enterprise.But after wet desulphurization, flue-gas temperature is lower, generally all below dew point, if directly enter chimney without heating again, then forms acid mist easily, and the corrosion chimney also is unfavorable for the diffusion of flue gas simultaneously.Therefore all be furnished with the flue gas reheat system in the wet desulphurization device back, be heated 70～80 ℃ and discharge again.Using more flue gas reheater at present is swinging flue gas heat exchange gas, and its primary structure is: be provided with rotor in the cylindrical shell, its blade is provided with the accumulation of heat plate type heat exchanging element.Two kinds of fluids (flue gas and hot-air) pass in and out with the two ends of convection type from cylindrical shell, and respectively flow through from fluid passage separately.So hot-air with the heat transferred heat exchange element that carries, just discharges heat when this part heat exchange element goes to exhaust gases passes during through epitrochanterian heat exchange element, with the flue gas heating, makes it to heat up.Though it has many good qualities, as compact conformation, heat transfer efficiency height, from heavy and light, occupation of land, area is little etc., but also there is significant disadvantages, promptly drive heat exchanger need of work power, energy consumption big, increase operating cost, device fabrication is strict, needs that the special manufacturer makes, cost is higher.
The summary of the invention the purpose of this utility model is to provide a kind of easy processing and manufacturing, and cost is low, does not need power just can make the energy-saving separate type heat pipe exchanger that is used for the desulfurization flue gas heat exchange of heat exchanger work.The utility model mainly includes heat pipe, bobbin carriage, external connection pipe and ash bucket.Wherein the housing of heat pipe can be light pipe but preferably which is provided with heat exchange fin, and the outer surface of fin is provided with the enamel overcoat.Many of above-mentioned heat pipes in a row side by side, their two ends are welded on respectively on two header tube, and are attached thereto logical.The header tube at these many heat pipes and two ends constitutes pipe row.A plurality of aforementioned tube rows (inclination or vertical) side by side place in the bobbin carriage, respectively establish an adapter that is communicated with it on each pipe row's the header tube, and it passes through hole corresponding with it on the bobbin carriage wall and reaches outside the bobbin carriage.This bobbin carriage is the closure casing that is provided with smoke entrance.Pipe row in this bobbin carriage and its forms heat exchange unit, and this heat exchange unit is identical two of pipe row number, one of them air inlet enters is clean flue gas after the desulfurization, and what discharged by this row of cells gas port is the clean flue gas that has been heated, and this unit is heat pipe heat release unit; In like manner, what air inlet entered is undesulfured former flue gas, by this row of cells gas port discharge by desuperheated former flue gas, this unit is the heat pipe heat absorbing units.In the heat absorbing units each heat pipe pipe row's two ends all with the heat release unit in corresponding heat pipe pipe row's two ends by taking over and external connection pipe links to each other, formation is closed circuit independently separately.This closed circuit inside vacuumizes and charges into heat-transfer working medium.For reducing the thermal loss on the external connection pipe, its outside is provided with adiabator layer.On bobbin carriage, be provided with several soot blowers, for corresponding with soot blower, the tapered ash bucket that is of the lower house of bobbin carriage, the valve of its switch of control is established in the ash bucket lower end, and the dust storage that this ash bucket can blow off soot blower and is regularly removed then.Because heat release unit process is clean flue gas, therefore blow off the dust that gets off seldom, it can come out from bobbin carriage with clean flue gas stream, therefore can only establish ash bucket at the lower house of heat absorbing units bobbin carriage.On the import and export of each heat exchange unit, be equipped with pressure gauge and thermometer, so that control the operation of soot blower according to pressure reduction and variations in temperature.Be to prolong the service life of equipment, be preferably in the surface that contacts with flue gas in the bobbin carriage rotten coating of setting up defences.
The course of work of the present utility model is as follows: the former flue gas of high temperature enters heat pipe heat absorbing units bobbin carriage, with the heat pipe in it heating, becomes steam after the liquid phase heat-transfer working medium in the heat pipe is heated, and enters in the heat pipe in the heat release unit bobbin carriage by external connection pipe.And enter the clean flue gas of low temperature in the heat pipe heat release unit bobbin carriage, temperature raises after absorbing the entrained heat of its interior heat pipe vapour phase heat-transfer working medium, the heat pipe that is cooled heat-transfer working medium in it then becomes liquid, and the external connection pipe by opposite side enters in the heat pipe in the heat absorbing units bobbin carriage and circulates.
The utility model has following advantage compared to existing technology:
1. energy savings, operating cost are low: the utility model relies on the circulation of adopting heat pipes for heat transfer working medium to form the heat conduction, the not consumption of power of therefore working.
2. heat exchange efficiency height: all from heat pipe outer flow mistake, the countercurrent flow resistance is little, efficient is high for two media.
3. easily processing and manufacturing: simple in structure, difficulty of processing is little, cost is lower.
4. long service life: bobbin carriage, thermotube shell and fin all are provided with overcoat, not only antiscour but also corrosion-resistant.
5. safe and reliable: hot and cold flue gas string, leakage accident can not take place, and both having made is that certain closed circuit goes wrong, because of it is the operate as normal that independently also can not influence other closed circuit separately.
6. deashing is easy: utilize soot blower just can remove dust on heat pipe and the fin.
Description of drawings
Fig. 1 is that simplified schematic diagram is cutd open by the utility model example 1 main office of looking.
Fig. 2 is the schematic diagram of pipe row among Fig. 1.
Fig. 3 is that simplified schematic diagram is cutd open by the utility model example 2 main offices of looking.
The specific embodiment is cutd open simplified schematic diagram in the master office of looking of the separate type heat pipe exchanger that is used for the desulfurization flue gas heat exchange shown in Figure 1, and the housing of heat pipe 1 is provided with heat exchange fin, and the outer surface of fin is provided with the enamel overcoat.16 of above-mentioned heat pipes in a row side by side, their two ends be welded on two header tube 2 respectively and be attached thereto logical, as shown in Figure 2.8 aforementioned tube rows tilt to place in the bobbin carriage of smoke entrance side by side, respectively establish perpendicular and a be communicated with adapter 3 on each pipe row's the header tube, and it passes through hole corresponding with it on the bobbin carriage wall and reaches outside the bobbin carriage.The heat exchange unit that bobbin carriage and pipe row in it form is identical two of pipe row number, and located in the above is heat release unit 4, be located at following and by support 5 supportings be heat absorbing units 6, both are separated by dividing plate 7.The lower house of heat absorbing units bobbin carriage is a taper ash bucket 8, and the flapper 9 that has electric structure is established in its lower end.Each heat pipe pipe row in the above-mentioned heat absorbing units reaches outer two the taking over ends all each reaches the outer corresponding adapter end of bobbin carriage by external connection pipe 10 8 of the formations closed circuit independently separately that links to each other with each heat pipe pipe row in the heat release unit of bobbin carriage.Be provided with ten soot blowers 11 in addition on bobbin carriage, be equipped with pressure gauge 12 and thermometer 13 in the import and export of each heat exchange unit, scale clay corrosion-inhibiting coating is established on the surface that contacts with flue gas in bobbin carriage.Cut open simplified schematic diagram in the master office of looking that is used for the separate type heat pipe exchanger of desulfurization flue gas heat exchange shown in Figure 3, housing is provided with the heat pipe that heat exchange fin and fin are provided with the enamel overcoat, 21 in a row side by side, and their two ends are welded on respectively up and down on two header tube, and are attached thereto logical.6 aforementioned tube rows vertically place in the bobbin carriage side by side.This heat absorbing units bobbin carriage is arranged side by side two.Other has 12 above-mentioned heat pipes in a row side by side, and their two ends are welded on respectively up and down on two header tube, and are attached thereto logical.6 aforementioned tube rows vertically place in the bobbin carriage side by side.This heat release unit bobbin carriage also is arranged side by side two.Heat absorbing units and heat release unit bobbin carriage lower house are ash bucket, and flapper is established in its lower end.Each heat pipe pipe row in the above-mentioned heat absorbing units reaches outer two the taking over ends all each reaches the outer corresponding adapter end of bobbin carriage by the external connection pipe formation closed circuit independently separately that links to each other with each heat pipe pipe row in the heat release unit of bobbin carriage.On bobbin carriage, be provided with soot blower in addition.
Claims (6)
1 one kinds of separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange, it is characterized in that: heat pipe in a row side by side, their two ends are welded on two header tube respectively and are attached thereto logical, aforementioned tube row place in the bobbin carriage of smoke entrance side by side, respectively establish an adapter that is communicated with it on each pipe row's the header tube, it passes through hole corresponding with it on the bobbin carriage and reaches outside the bobbin carriage, the heat exchange unit of being made up of bobbin carriage and interior pipe thereof row is identical two of pipe row number, in the heat absorbing units each heat pipe pipe row's two ends all with the heat release unit in corresponding heat pipe pipe row's two ends by taking over and external connection pipe links to each other, formation is closed circuit independently separately.
2 separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange according to claim 1, it is characterized in that: bobbin carriage is provided with soot blower, and the lower house of bobbin carriage is an ash bucket of establishing the band valve.
3 separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange according to claim 1 and 2, it is characterized in that: thermotube shell is provided with heat exchange fin.
4 separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange according to claim 3, it is characterized in that: the heat exchange fin of heat pipe is provided with the enamel overcoat.
5 separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange according to claim 4 is characterized in that: the surface that contacts with flue gas in the bobbin carriage rotten coating of setting up defences.
6 separate type heat pipe exchangers that are used for the desulfurization flue gas heat exchange according to claim 5 is characterized in that: all establish pressure gauge and thermometer in the import and export of each heat exchange unit bobbin carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145956 CN2867260Y (en) | 2005-12-21 | 2005-12-21 | Separating type heat pipe heat exchanger for heat transfering of flue gas desulfurizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145956 CN2867260Y (en) | 2005-12-21 | 2005-12-21 | Separating type heat pipe heat exchanger for heat transfering of flue gas desulfurizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2867260Y true CN2867260Y (en) | 2007-02-07 |
Family
ID=37702966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520145956 Expired - Fee Related CN2867260Y (en) | 2005-12-21 | 2005-12-21 | Separating type heat pipe heat exchanger for heat transfering of flue gas desulfurizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2867260Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721308A (en) * | 2012-07-04 | 2012-10-10 | 山东山大华特环保工程有限公司 | Phase-change heat exchanger with dust self-blowing function |
-
2005
- 2005-12-21 CN CN 200520145956 patent/CN2867260Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721308A (en) * | 2012-07-04 | 2012-10-10 | 山东山大华特环保工程有限公司 | Phase-change heat exchanger with dust self-blowing function |
| CN102721308B (en) * | 2012-07-04 | 2014-03-12 | 山东山大华特环保工程有限公司 | Phase-change heat exchanger with dust self-blowing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20070207 Termination date: 20101221 |