CN202562342U - Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment - Google Patents
Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment Download PDFInfo
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- CN202562342U CN202562342U CN2012201709098U CN201220170909U CN202562342U CN 202562342 U CN202562342 U CN 202562342U CN 2012201709098 U CN2012201709098 U CN 2012201709098U CN 201220170909 U CN201220170909 U CN 201220170909U CN 202562342 U CN202562342 U CN 202562342U
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- heat exchanger
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Abstract
The utility model discloses a fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment and belongs to heat exchange equipment and especially to fin-type heat exchange equipment utilizing heat pipe technology. The fin-type double phase steel heat pipe heat exchanger comprises a heat exchanger shell, a vertically installed heat exchange pipe is installed in the shell, and the structure is as follows: the heat exchange pipe is a fin-type heat pipe heat exchange pipe installed with symmetrical rectangular fins on the periphery of the heat pipe, the upper and lower ends of the heat exchange pipe are respectively fixed on the head plate and the soleplate of the heat exchanger, the longitudinally and transversely arranged heat exchange pipes are divided into heat pipe groups in a direction vertical to the flowing direction of the flue gas, check passages are arranged between the heat pipe groups, a heat exchanger clapboard is arranged at the middle part of the heat exchanger in the vertical direction, a heat absorption region of the heat exchanger connected with an original flue gas flue is arranged below the clapboard, and a radiating region of the heat exchanger connected with a pure flue gas flue is arranged above the clapboard. The equipment has the advantages of simple structure, reliable work, small maintenance quantity, small weight and long service life. The fin-type double phase steel heat pipe heat exchanger has extensive application, economic benefit and environmental benefit.
Description
Technical field
The utility model belongs to heat-exchange apparatus, particularly uses the finned heat transmission equipment of hot pipe technique.
Background technology
Mostly about 150 ℃, between 55 ℃-65 ℃, it is to lean against in the desulfurizing tower with calcium carbonate (CaCO that former flue gas falls with clean flue-gas temperature to the flue-gas temperature of China's sintering machine discharge at present through the clean flue-gas temperature after the desulfurization
3) slurries wash sulfur in smoke (SO
2) in the reaction of calcium carbonate, water, oxygen, generate calcium sulphate dihydrate (CaSO
4H
2O).And water is become water vapour by high-temperature flue gas gasification in washing flue gas process.The latent heat of water vapour is taken away the heat in the flue gas; Flue-gas temperature is descended, want to save water consumption, just must reduce and advance the preceding flue-gas temperature of tower; Introducing external technology all is to adopt rotary type heat exchanger (GGH), and GGH is the main equipment of present domestic large desulfurization facility.Increase along with service time; The problem that GGH exists highlights gradually; Subject matter is exactly that power consumption is many, cost is high, fouling, obstruction, maintenance capacity are big, causes whole desulphurization system poor reliability, and rotary type heat exchanger is because the problem great majority of structure all exist untreated flue gas to bleed in the flue gas of desulfurization; This slip can reach 5% usually, therefore can reduce the total SO of desulfurization
2Removal efficiency.So in domestic desulfurization project in recent years, have quite a few to remove GGH.After removing GGH,, cause water consumption to increase owing to advance the flue-gas temperature raising of desulfurizing tower though system failure rate has lacked; The desulfurization flue gas demonstrates a large amount of white vapor; Form visible plume, reach tens meters, simultaneously because the flue-gas temperature after the desulfurization is low and high humidity is in saturation state to rice up to a hundred; Because flue gas is easy to condensation and dewfall and produces corrosive liquids, flue, chimney are produced corrosion.
The utility model content
In order to overcome the deficiency that existing rotary type heat exchanger power consumption is many, slip is high, maintenance capacity is big; The purpose of the utility model provides a kind of finned dual phase steel heat exchange of heat pipe, and another purpose of the utility model provides a kind of flue gas desulfurization device of using finned dual phase steel heat exchange of heat pipe.
The utility model solves the technical scheme that its technical problem adopted: a kind of finned dual phase steel heat exchange of heat pipe; Comprise vertically arranged heat exchanger tube is housed in outer cover of heat exchanger, the shell; Its structure is: described heat exchanger tube is equipped with the finned heat pipe heat exchanging pipe of the rectangular fin of symmetry for the heat pipe periphery; The heat exchanger tube upper and lower side is separately fixed on heat exchanger top board and the base plate; The heat exchanger tube of arranging in length and breadth with the vertical direction of flow of flue gas on be divided into heat pipe heat, be provided with the inspection passage between each heat pipe heat, the middle part of heat exchanger vertical direction is provided with the heat exchanger dividing plate; Dividing plate below be the heat absorption district of the heat exchanger that links to each other with former flue gas flue, is the radiating area of the heat exchanger that links to each other with clean flue gas flue above the dividing plate.
Described heat exchanger base plate is provided with columnar heat pipe holder; Heat pipe can be plugged in the heat pipe holder; Be equipped with the heat exchanger tube installing hole on described heat exchanger dividing plate and the heat exchanger top board, be welded on dividing plate cover plate on the heat pipe by being bolted on the heat exchanger dividing plate, the top board cover plate that has the heat pipe locking cap is by being bolted on the heat exchanger top board; Heat exchanger tube installing hole shape on the heat exchanger top board is identical with the dividing plate cover plate, and the dividing plate cover plate can pass through from this installing hole.
Described heat pipe is welded by the seamless steel pipe of two kinds of different materials, and heat exchanger dividing plate below is common seamless steel pipe, and heat exchanger dividing plate top is the ND steel seamless steel tube, and fin adopts the ND steel.
Described heat exchanger inwall and central dividing plate scribble alicyclic vinyl glass flake anticorrosive coat.
A kind of flue gas desulfurization device of using finned dual phase steel heat exchange of heat pipe; Its structure is: the gas approach in the heat absorption district of heat exchanger links to each other with the former flue gas flue that damper door B is housed through blower fan; Its exhanst gas outlet communicates with the desulfurizing tower inlet flue duct; The radiating area import of heat exchanger communicates with the desulfurizing tower exhaust pass, and its outlet links to each other with chimney through the clean flue gas flue that damper door A is housed.
The flue-gas temperature of China's sintering machine eliminating at present is mostly about 150 ℃; Through the clean flue-gas temperature after the desulfurization between 55 ℃-65 ℃; And high humidity is in saturation state, because flue gas is easy to condensation and dewfall and produces corrosive liquids, flue, chimney is produced corrosion.The disclosed finned dual phase steel heat exchange of heat pipe of the utility model heats clean flue gas from former flue gas heat-obtaining; The heat that the heat absorption district of heat exchanger can absorb in the former flue gas makes it drop to 110-115 ℃ from 150 ℃; Owing to reduced the intake air temperature of desulfuration absorbing tower; Thereby the evaporated water of the desulfurizing tower that has reduced, certain 360m of iron company
3The sintering machine project, install heat exchanger additional in the desulphurization system after, practice thrift the about 435m of running water every day
3, about 15.66 ten thousand m of annual water saving
3The clean flue gas heating of the radiating area of heat exchanger after to desulfurization can be brought up to about 80 ℃ by 55 ℃-65 ℃ with the flue gas after desulfurization temperature, can reduce the corrosive liquids that flue gas produces because of condensation and dewfall.
Owing to heated clean flue gas, stack draught is improved simultaneously, SR reduces, and flue gas flow rate and atmosphere hoist height increase, and Flue Gas Diffusion is effective, has improved environmental requirement.
The utility model is littler than traditional G GH resistance, equipment resistance design 500Pa, and the highest 700Pa, and the design resistance of GGH is 1432Pa.Reducing resistance actual is exactly to have reduced the booster fan power of motor, certain 360m of iron company
3Sintering machine 210 ten thousand steres/hour exhaust gas volumn is calculated, and dress the utility model reduces 832.5Pa than GGH resistance, saves electrisity consumption 674.5kw/h, annual economize on electricity 582.7 ten thousand kw/h.
The utility model is lower than GGH cost.With certain 360m of iron company
3Sintering machine is an example, exhaust gas volumn 210 ten thousand steres/hour, when heat was identical, it was 722.2 ten thousand yuan/platform that the utility model is manufactured expense, and swinging GGH to manufacture expense be 1,700 ten thousand yuan/platform, reduce by 977.8 ten thousand yuan/platform of cost.
The utility model good airproof performance, the desulfuration efficiency of assurance system.Adopt dividing plate to separate between former flue gas and the clean flue gas, dividing plate adopts nut locking through the node of heat pipe, and sealing is reliable.Therefore can reach zero leakage between former flue gas and the clean flue gas.Every heat pipe also is an integral sealing body, and is long-term when using the back as transducer wall ' s abrasion, corrosion failure phenomenon occurring, also just reduced heat, and cold and hot flue gas can not ganged up, and guaranteed that all flue gases all discharge after the desulfurizing tower desulfurization.
The heat exchange of heat pipe that the utility model adopts need not the outside provides power, and the transmission heat-conducting medium is by the heat transmission of working solution evaporation in the pipe with the completion two ends of condensing.When operate as normal, have 1.3 * 10 in the pipe
3The negative pressure of Pa, the inside are filled with an amount of hydraulic fluid, are totally-enclosed thermal elements, have simple in structure, reliable operation, maintenance capacity is little, in light weight, the life-span is long advantage.If there are indivedual heat pipe failure that problem is arranged, row maintenance in the time of can extracting single heat pipe out.
The heat pipe that the utility model uses adopt two kinds of unlike materials seamless steel pipe make and not only guaranteed the decay resistance of equipment but also reduced equipment manufacturing cost, help applying of present technique.
The beneficial effect of the utility model is that finned dual phase steel heat exchange of heat pipe heats clean flue gas from former flue gas heat-obtaining, can reduce the intake air temperature of desulfuration absorbing tower, can reduce the evaporated water of desulfurizing tower; To the clean flue gas heating after the desulfurization, improve the flue gas after desulfurization temperature and can reduce flue gas because of the corrosive liquids that condensation and dewfall produces, stack draught is improved; SR reduces; Flue gas flow rate and atmosphere hoist height increase, and Flue Gas Diffusion is effective, has improved environmental requirement.That equipment has is simple in structure, reliable operation, maintenance capacity is little, in light weight, the life-span is long advantage
Description of drawings
Fig. 1 is the desulphurization plant sketch map of the utility model,
Fig. 2 is the scheme of installation of finned heat pipe heat exchanging pipe in heat exchanger,
Fig. 3 be the A-A of Fig. 2 to partial view,
Fig. 4 is the heat pipe layout of heat exchanger among Fig. 1.
Among the figure, 1. damper door A, 2. clean flue gas flue, 3. former flue gas flue, 4. damper door B, 5. blower fan; 6. heat exchanger, 61. heat pipe heat, 62. inspection passages, 63. heat exchanger top boards, 64. top board cover plates; 65. finned heat pipe heat exchanging pipe, 651. heat pipes, 652. fins, 66. heat exchanger dividing plates, 67. dividing plate cover plates; 68. the heat exchanger base plate, 69. heat pipe holders, 7. desulfurizing tower absorbs exhaust pass, 8. desulfuration absorbing tower inlet flue duct, 9. desulfuration absorbing tower.
The specific embodiment
The specific embodiment of the utility model is, and is as shown in the figure:
Embodiment 1; A kind of finned dual phase steel heat exchange of heat pipe; Comprise vertically arranged heat exchanger tube is housed in outer cover of heat exchanger, the shell; Its structure is: described heat exchanger tube is the finned heat pipe heat exchanging pipe 65 of rectangular fin 652 that heat pipe 651 peripheries are equipped with symmetry, and the heat exchanger tube upper and lower side is separately fixed on heat exchanger top board 63 and the heat exchanger base plate 68, the heat exchanger tube of arranging in length and breadth with the vertical direction of flow of flue gas on be divided into heat pipe heat 61; Be provided with inspection passage 62 between each heat pipe heat; The middle part of heat exchanger vertical direction is provided with heat exchanger dividing plate 66, and dividing plate below be the heat absorption district of the heat exchanger that links to each other with former flue gas flue 3, is the radiating area of the heat exchanger that links to each other with clean flue gas flue 2 above the dividing plate.
Claims (5)
1. finned dual phase steel heat exchange of heat pipe; Comprise vertically arranged heat exchanger tube is housed in outer cover of heat exchanger, the shell; It is characterized in that: described heat exchanger tube is equipped with the finned heat pipe heat exchanging pipe of rectangular fin of symmetry for the heat pipe periphery, and the heat exchanger tube upper and lower side is separately fixed on heat exchanger top board and the base plate, in length and breadth the heat exchanger tube of arrangement with the vertical direction of flow of flue gas on be divided into heat pipe heat; Be provided with the inspection passage between each heat pipe heat; The middle part of heat exchanger vertical direction is provided with the heat exchanger dividing plate, and dividing plate below be the heat absorption district of the heat exchanger that links to each other with former flue gas flue, is the radiating area of the heat exchanger that links to each other with clean flue gas flue above the dividing plate.
2. finned dual phase steel heat exchange of heat pipe according to claim 1; It is characterized in that: described heat exchanger base plate is provided with columnar heat pipe holder; Heat pipe can be plugged in the heat pipe holder; Be equipped with the heat exchanger tube installing hole on described heat exchanger dividing plate and the heat exchanger top board, be welded on dividing plate cover plate on the heat pipe by being bolted on the heat exchanger dividing plate, the top board cover plate that has the heat pipe locking cap is by being bolted on the heat exchanger top board; Heat exchanger tube installing hole shape on the heat exchanger top board is identical with the dividing plate cover plate, and the dividing plate cover plate can pass through from this installing hole.
3. finned dual phase steel heat exchange of heat pipe according to claim 1; It is characterized in that: described heat pipe is welded by the seamless steel pipe of two kinds of different materials; Heat exchanger dividing plate below is common seamless steel pipe, and heat exchanger dividing plate top is the ND steel seamless steel tube, and fin adopts the ND steel.
4. finned dual phase steel heat exchange of heat pipe according to claim 1 is characterized in that: described heat exchanger inwall and central dividing plate scribble alicyclic vinyl glass flake anticorrosive coat.
5. an application rights requires the flue gas desulfurization device of 1 described finned dual phase steel heat exchange of heat pipe; It is characterized in that: the gas approach in the heat absorption district of heat exchanger links to each other with the former flue gas flue that damper door B is housed through blower fan; Its exhanst gas outlet communicates with the desulfurizing tower inlet flue duct; The radiating area import of heat exchanger communicates with the desulfurizing tower exhaust pass, and its outlet links to each other with chimney through the clean flue gas flue that damper door A is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201709098U CN202562342U (en) | 2012-04-20 | 2012-04-20 | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201709098U CN202562342U (en) | 2012-04-20 | 2012-04-20 | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562342U true CN202562342U (en) | 2012-11-28 |
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ID=47211990
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201709098U Expired - Lifetime CN202562342U (en) | 2012-04-20 | 2012-04-20 | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614757A (en) * | 2012-04-20 | 2012-08-01 | 山东国舜建设集团有限公司 | Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same |
| CN108895479A (en) * | 2018-09-12 | 2018-11-27 | 华北电力大学（保定） | A kind of flue gas moisture collection device |
-
2012
- 2012-04-20 CN CN2012201709098U patent/CN202562342U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614757A (en) * | 2012-04-20 | 2012-08-01 | 山东国舜建设集团有限公司 | Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same |
| CN102614757B (en) * | 2012-04-20 | 2014-03-12 | 山东国舜建设集团有限公司 | Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same |
| CN108895479A (en) * | 2018-09-12 | 2018-11-27 | 华北电力大学（保定） | A kind of flue gas moisture collection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |
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| CX01 | Expiry of patent term |