CN102614757B - Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same - Google Patents
Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same Download PDFInfo
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- CN102614757B CN102614757B CN201210120324.XA CN201210120324A CN102614757B CN 102614757 B CN102614757 B CN 102614757B CN 201210120324 A CN201210120324 A CN 201210120324A CN 102614757 B CN102614757 B CN 102614757B
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Abstract
The invention discloses a fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using the same, belonging to heat exchange equipment, particular to fin-type heat exchange equipment based on a heat pipe technology. The fin-type double-phase steel heat pipe exchanger comprises a heat exchanger shell, wherein heat exchange pipes arranged in the shell vertically. The fin-type double-phase steel heat pipe exchanger is structurally characterized in that the heat exchange pipes are fin-type heat pipe exchange pipes with symmetrical rectangular fins at the periphery, the upper and lower ends of the heat exchange pipes are respectively fixed on a top plate and a bottom plate of the heat exchanger, the heat exchange pipes which are arranged vertically and horizontally are divided into heat pipe groups in the direction perpendicular to the flowing direction of flue gas, inspection passages are arranged among the heat pipe groups, the middle part of the heat exchanger in the vertical direction is provided with a heat exchanger separation plate, a heat absorbing area of the heat exchanger, which is connected with a raw flue gas channel, is arranged below the separation plate, and a heat dissipating area of the heat exchanger, which is connected with a clean flue gas channel, is arranged above the separation plate. The fin-type double-phase steel heat pipe exchanger has the advantages of simplicity, high working reliability, light weight and long service life and can be widely used with high economic and social benefits.
Description
Technical field
The invention belongs to heat-exchange apparatus, particularly use the fin type heat exchange equipment of hot pipe technique.
Background technology
The flue-gas temperature that China's sintering machine is discharged is at present mostly 150 ℃ of left and right, and the clean flue-gas temperature after desulfurization is between 55 ℃-65 ℃, and it is to lean against in desulfurizing tower with calcium carbonate (CaCO that former flue gas falls with clean flue-gas temperature
3) slurries wash, the sulfur dioxide (SO in flue gas
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 flue gas, flue-gas temperature is declined, want to save water consumption, just must reduce into the flue-gas temperature before tower, the technology of Introduced From Abroad is all to adopt rotary type heat exchanger (GGH), and GGH is the main equipment of current 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 large, cause whole desulphurization system poor reliability, rotary type heat exchanger bleeds in the flue gas of desulfurization because the problem great majority of structure all exist untreated flue gas, this slip can reach 5% conventionally, therefore can reduce the total SO of desulfurization
2removal efficiency.So have quite a few to remove GGH in domestic desulfurization project in recent years.Remove after GGH, although system failure rate has lacked, but cause water consumption to increase owing to entering the flue-gas temperature raising of desulfurizing tower, desulfurization fume presents a large amount of white vapor, form visible plume, reach tens meters to rice up to a hundred, simultaneously due to the flue-gas temperature after desulfurization is low and high humidity in saturation state, because flue gas is easy to condensation and dewfall and produces corrosive liquids, flue, chimney are produced to corrosion.
Summary of the invention
In order to overcome the deficiency that existing rotary type heat exchanger power consumption is many, slip is high, maintenance capacity is large, the object of this invention is to provide a kind of finned dual phase steel heat exchange of heat pipe, another object of the present invention is to provide a kind of flue gas desulfurization device of applying finned dual phase steel heat exchange of heat pipe.
The technical solution adopted for the present invention to solve the technical problems is: a kind of finned dual phase steel heat exchange of heat pipe, comprise outer cover of heat exchanger, vertically arranged heat exchanger tube is housed in shell, its structure is: described heat exchanger tube is the finned heat pipe heat exchanger tube that heat pipe periphery is equipped with symmetrical rectangular fin, heat exchanger tube upper and lower side is separately fixed on heat exchanger top board and base plate, the heat exchanger tube of arranging is in length and breadth divided into heat pipe heat in the vertical direction with flow of flue gas, between each heat pipe heat, be provided with inspection passage, the middle part of heat exchanger vertical direction is provided with heat exchanger dividing plate, dividing plate below is the heat absorption district of the heat exchanger that is connected with former flue gas flue, dividing plate top is the radiating area of the heat exchanger that is connected with clean flue gas flue.
Described heat exchanger base plate is provided with columnar heat pipe holder, heat pipe can be plugged in heat pipe holder, on described heat exchanger dividing plate and heat exchanger top board, be equipped with heat exchanger tube installing hole, the dividing plate cover plate being welded on heat pipe is bolted on heat exchanger dividing plate, top board cover plate with heat pipe locking cap is bolted on heat exchanger top board, heat exchanger tube installing hole shape on heat exchanger top board is identical with dividing plate cover plate, and 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 ND steel seamless steel tube, and fin adopts ND steel.
Described heat exchanger inwall and central dividing plate adopt alicyclic vinyl glass flake anticorrosion.
A kind of flue gas desulfurization device of applying finned dual phase steel heat exchange of heat pipe, its structure is: the gas approach in the heat absorption district of heat exchanger is connected with the former flue gas flue that baffle board door of flue B is housed through blower fan, its exhanst gas outlet communicates with desulfurizing tower inlet flue duct, the radiating area import of heat exchanger communicates with desulfurizing tower exhaust pass, and its outlet is connected with chimney through the clean flue gas flue of baffle board door of flue A is housed.
The former flue-gas temperature of the import in the heat absorption district of described heat exchanger is that the former flue-gas temperature of 150 ℃ of outlets is 110--115 ℃.The clean flue-gas temperature of the radiating area import of described heat exchanger is 55 ℃-65 ℃, and the clean flue-gas temperature of outlet is approximately 80 ℃.
The flue-gas temperature that China's sintering machine is got rid of is at present mostly 150 ℃ of left and right, clean flue-gas temperature after desulfurization is between 55 ℃-65 ℃, and high humidity, in saturation state, because flue gas is easy to condensation and dewfall and produces corrosive liquids, produces corrosion to flue, chimney.Finned dual phase steel heat exchange of heat pipe disclosed by the invention heats clean flue gas from former flue gas heat-obtaining, the heat that the heat absorption district of heat exchanger can absorb in former flue gas makes it from 150 ℃, drop to 110-115 ℃, owing to having reduced the intake air temperature of desulfuration absorbing tower, thereby the evaporated water ，Mou 360m of iron company of the desulfurizing tower having reduced
3sintering machine project, installs additional in desulphurization system after heat exchanger, saves the about 435m of running water every day
3, approximately 15.66 ten thousand m every year economize on water
3.The clean flue gas of the radiating area of heat exchanger after to desulfurization, can bring up to approximately 80 ℃ by 55 ℃-65 ℃ by flue gas after desulfurization temperature, can reduce the corrosive liquids that flue gas produces because of condensation and dewfall.
Owing to having heated clean flue gas, stack draught is improved, SR reduces simultaneously, and flue gas flow rate and atmosphere hoist height increase, and flue gas diffusion effect is good, has improved environmental requirement.
The present invention is less than traditional GGH 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 ，Mou 360m of iron company
3sintering machine 210 ten thousand steres/hour exhaust gas volumn is calculated, and dress the present invention, than GGH drag reduction 832.5Pa, saves electrisity consumption 674.5kw/h, and 582.7 ten thousand kw/h every year economize on electricity.
The present invention is lower than GGH cost.The 360m of Yi Mou iron company
3sintering machine is example, exhaust gas volumn 210 ten thousand steres/hour, when heat exchange amount is identical, it is 722.2 ten thousand yuan/platform that the present invention manufactures expense, and swinging GGH to manufacture expense be 1,700 ten thousand yuan/platform, reduce by 977.8 ten thousand yuan/platform of cost.
Good airproof performance of the present invention, the desulfuration efficiency of assurance system.Between former flue gas and clean flue gas, adopt dividing plate to separate, dividing plate adopts nut to lock by the node of heat pipe, and sealing is reliable.Therefore between former flue gas and clean flue gas, can reach zero leakage.Every heat pipe is also an integral sealing body, after long-term use as while there is transducer wall ' s abrasion, corrosion failure phenomenon, has also just reduced heat exchange amount, and cold and hot flue gas can not ganged up, and has guaranteed that all flue gases all discharge after desulfurizing tower desulfurization.
The heat exchange of heat pipe that the present invention adopts provides power without outside, transmits working solution evaporation and condensation in heat-conducting medium tube and completes the heat transmission at two ends.When normal operation, in pipe, have 1.3 * 10
3the negative pressure of Pa, the inside is filled with appropriate hydraulic fluid, is a totally-enclosed thermal element, has advantages of simple in structure, reliable operation, a little repair, lightweight, the life-span is long.If there are indivedual heat pipe failure to have problem, row maintenance in the time of can extracting single heat pipe out.
The heat pipe that the present invention 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, be conducive to applying of present technique.
The invention has the beneficial effects as follows 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 after desulfurization, improve 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 effect is good, has improved environmental requirement.That equipment has advantages of is simple in structure, reliable operation, a little repair, lightweight, the life-span is long
Accompanying drawing explanation
Fig. 1 is desulphurization plant schematic diagram of the present invention,
Fig. 2 is the scheme of installation of finned heat pipe heat exchanger tube 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 in Fig. 1.
In figure, 1. baffle board door of flue A, 2. clean flue gas flue, 3. former flue gas flue, 4. baffle board door of flue B, 5. blower fan, 6. heat exchanger, 61. heat pipe heat, 62. check passage, 63. heat exchanger top boards, 64. top board cover plates, 65. finned heat pipe heat exchanger tubes, 651. heat pipes, 652. fins, 66. heat exchanger dividing plates, 67. dividing plate cover plates, 68. heat exchanger base plates, 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 present invention is, as shown in the figure:
Embodiment 3, a kind of flue gas desulfurization device of applying finned dual phase steel heat exchange of heat pipe 6, its structure is: the gas approach in the heat absorption district of heat exchanger is connected with the former flue gas flue 3 that baffle board door of flue B4 is housed through blower fan 5, its exhanst gas outlet communicates with desulfuration absorbing tower inlet flue duct 8, the radiating area import of heat exchanger communicates with the desulfuration absorbing tower exhaust pass 7 of desulfuration absorbing tower 9, and its outlet is connected with chimney through the clean flue gas flue 2 of baffle board door of flue A1 is housed.Heat exchanger inwall and central dividing plate, steel flue gas duct adopt alicyclic vinyl glass flake anticorrosion, and concrete flue, chimney adopt OM type chimney acid-resistant anticorrosion paint to carry out anticorrosion.
Claims (3)
1. a finned dual phase steel heat exchange of heat pipe, comprise outer cover of heat exchanger, vertically arranged heat exchanger tube is housed in shell, it is characterized in that: described heat exchanger tube is the finned heat pipe heat exchanger tube that heat pipe periphery is equipped with symmetrical rectangular fin, heat exchanger tube upper and lower side is separately fixed on heat exchanger top board and base plate, the heat exchanger tube of arranging is in length and breadth divided into heat pipe heat in the vertical direction with flow of flue gas, between each heat pipe heat, be provided with inspection passage, the middle part of heat exchanger vertical direction is provided with heat exchanger dividing plate, dividing plate below is the heat absorption district of the heat exchanger that is connected with former flue gas flue, dividing plate top is the radiating area of the heat exchanger that is connected with clean flue gas flue,
Described heat exchanger base plate is provided with columnar heat pipe holder, heat pipe can be plugged in heat pipe holder, on described heat exchanger dividing plate and heat exchanger top board, be equipped with heat exchanger tube installing hole, the dividing plate cover plate being welded on heat pipe is bolted on heat exchanger dividing plate, top board cover plate with heat pipe locking cap is bolted on heat exchanger top board, heat exchanger tube installing hole shape on heat exchanger top board is identical with dividing plate cover plate, and 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 ND steel seamless steel tube, and fin adopts ND steel.
2. 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 adopt alicyclic vinyl glass flake anticorrosion.
3. an application rights requires the flue gas desulfurization device of the finned dual phase steel heat exchange of heat pipe described in 1, it is characterized in that: the gas approach in the heat absorption district of heat exchanger is connected with the former flue gas flue that baffle board door of flue B is housed through blower fan, its exhanst gas outlet communicates with desulfurizing tower inlet flue duct, the radiating area import of heat exchanger communicates with desulfurizing tower exhaust pass, its outlet is connected with chimney through the clean flue gas flue of baffle board door of flue A is housed
The former flue-gas temperature of the import in the heat absorption district of described heat exchanger is that the former flue-gas temperature of 150 ℃ of outlets is 110--115 ℃, and the clean flue-gas temperature of the radiating area import of described heat exchanger is 55 ℃-65 ℃, and the clean flue-gas temperature of outlet is approximately 80 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120324.XA CN102614757B (en) | 2012-04-20 | 2012-04-20 | Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120324.XA CN102614757B (en) | 2012-04-20 | 2012-04-20 | Fin-type double-phase steel heat pipe exchanger and flue gas desulfurization equipment using same |
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| CN102614757A CN102614757A (en) | 2012-08-01 |
| CN102614757B true CN102614757B (en) | 2014-03-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883788A (en) * | 2017-11-10 | 2018-04-06 | 山东奇威特太阳能科技有限公司 | Isolated heat exchanger |
| CN117606252A (en) * | 2023-11-23 | 2024-02-27 | 河北天越激光再制造科技有限公司 | Device capable of replacing GGH heat exchanger to heat clean flue gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908568A (en) * | 2006-08-21 | 2007-02-07 | 上海发电设备成套设计研究院 | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant |
| CN202562342U (en) * | 2012-04-20 | 2012-11-28 | 山东国舜建设集团有限公司 | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908568A (en) * | 2006-08-21 | 2007-02-07 | 上海发电设备成套设计研究院 | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant |
| CN202562342U (en) * | 2012-04-20 | 2012-11-28 | 山东国舜建设集团有限公司 | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment |
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| CP02 | Change in the address of a patent holder |
Address after: 250300 No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee after: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Address before: 250300 North of Middle Section of Longquan Street, Changqing District, Jinan City, Shandong Province Patentee before: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Finned dual phase steel heat pipe heat exchanger and its applied flue gas desulfurization equipment Effective date of registration: 20221228 Granted publication date: 20140312 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Changqing branch Pledgor: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2022980029384 |
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