CN203478165U - Radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas - Google Patents
Radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas Download PDFInfo
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- CN203478165U CN203478165U CN201320391602.5U CN201320391602U CN203478165U CN 203478165 U CN203478165 U CN 203478165U CN 201320391602 U CN201320391602 U CN 201320391602U CN 203478165 U CN203478165 U CN 203478165U
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Abstract
The utility model discloses a radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas. The radial heat pipe-common heat exchange pipe combined waste heat recovery device comprises a gas box and a heat exchange device arranged inside the gas box, and is characterized in that side plates of the gas box are pipe plates; through holes are formed in the pipe plates; exhaust gas inlets and exhaust gas outlets are respectively formed in the two ends of the pipe plates; a steam and water separator is arranged above the box; the heat exchange device consists of a preheating heat exchange pipe bundle and an evaporation heat exchange pipe; the preheating heat exchange pipe bundle consists of a radial heat pipe, a water inlet header I and a water outlet header I; the water inlet header I and the water outlet header I are connected with the radial heat pipe; the evaporation heat exchange pipe consists of a common heat exchange pipe, a water inlet header II and a steam outlet header. The radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas has the advantages that the combined waste heat recovery device with such a structure is adopted in the flue exhaust gas, the flue exhaust gas heat is transferred to soft water by the heat conduction of the radial heat pipe, steam is generated, the temperature of the flue exhaust gas is reduced, the heat utilization rate is improved, and the corrosion of an exposed point is effectively avoided.
Description
Technical field
The utility model relates to a kind of flue gas waste-heat recovery device that is applied to the fields such as coking, metallurgy, oil, particularly a kind of box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas.
Background technology
Flue gas is in order to reclaim stack gases waste heat with the effect of heat exchange tubular type waste-heat recovery device, reduces the temperature of waste gas smoke evacuation, plays and falls low-energy-consumption, produces low-pressure steam, for the production of and life.The patent No. that reclaims the application in 6 days Augusts in 2004 that all adopts my company at the waste gas residual heat of the cooling sintering deposit of sintering art is ZL200420070137.6, name is called the utility model patent of " fin pipe waste heat boiler that sinter cooler waste heat recovery is used ", and the fin pipe waste heat boiler that this sinter cooler waste heat recovery is used is formed by connecting through pipeline by steam generator, superheater and drum.Steam generator is comprised of several set of heat exchange tubes, and the heat exchanger tube in each set of heat exchange tubes adopts inserted spiral fin coil, and each set of heat exchange tubes all independently forms the circulatory system with drum; Steam superheater is comprised of many inserted helical fin coiled pipes; Steam generator and steam superheater are all arranged in flue collector, and the water after softening deoxygenation directly enters drum through feed pipe.The advantage of the fin pipe waste heat boiler of the recovery use of this structure is reasonable in design, simple in structure, heat-transfer effect is good, and heat exchange efficiency is high, booster not, and cost is low, but be not therefore suitable for the pipeline tail gas recycle of the pipeline tail gas recycle, particularly coking field of field of metallurgy and chemical engineering.
In coking field, be all that coking stack gases is emitted in the past.Because this part EGT is 280-400 ℃ of left and right, and composition is more complicated, sulfur content is higher, recycles and needs to consider cryogenic gas dew point corrosion problem, so do not reclaim all the time.
Chinese patent CN201010558892.9 discloses a kind of recoverying and utilizing method of coke oven flue heat energy from waste gas.In order to reduce the exhaust gas temperature of flue gas, at main chimney flue root, draw a by-pass flue, a set of heat pipe type waste heat reclaiming device is installed in by-pass flue, the tail gas after recovery discharges by air-introduced machine.Its feature is: utilize the isothermal of axial heat pipe to reclaim waste gas residual heat, whole equipment is comprised of preheater, evaporimeter, superheater; Each assembly forms (except superheater) by axial heat pipe.Because axial heat pipe belongs to secondary heat exchange, heat exchange efficiency reduces compared with the common finned tube of a heat exchange.And axial heat pipe duty is vertical placement, working medium, after bringing-up section is heated, along the vertical tube up arrival cooling section top of vaporizing, discharges latent heat, transfers heat to water, so need larger rising power in this process.
Summary of the invention
The purpose of this utility model is to provide a kind of temperature that can effectively reduce flue gas smoke evacuation, can avoid dew point corrosion again, improves the box-like waste-heat recovery device of radial heat pipe for flue gas-common set of heat exchange tubes of the thermal efficiency and service life of equipment.
The utility model is realized by following scheme:
The box-like waste-heat recovery device of radial heat pipe for flue gas of the present utility model-common set of heat exchange tubes, comprises gas casing, is arranged on the heat-exchanger rig in gas casing, it is characterized in that:
The side plate of described gas casing is tube sheet, on described tube sheet, have through hole, the two ends of gas casing are respectively gas approach and exhanst gas outlet, top at described gas casing is provided with steam-water separator, described heat-exchanger rig is comprised of preheating heat-changing tube group and evaporating heat-exchanging pipe group, described preheating heat-changing tube group is comprised of with radial heat pipe is connected therewith water inlet header and water outlet header I radial heat pipe, its radial heat pipe one end is connected with water inlet header I, the other end with go out header I and be connected, the water inlet of water inlet header I is connected with soft water entrance, the delivery port of water outlet header I is connected with steam-water separator by tube connector, it is external that described radial heat pipe is arranged on gas cabinet through the through hole two ends on tube sheet, described evaporating heat-exchanging pipe group is by common heat exchanger tube, water inlet header II and go out vapour case and form, described common heat exchanger tube one end is connected with water inlet header II, the other end with go out vapour header and be connected, the water inlet of described water inlet header II is connected with the bottom of steam-water separator by pipeline, the described vapour header that goes out is connected with the top of steam-water separator by tube connector.
The radial heat pipe of described preheating heat-changing tube group is the double-layer sleeve structure that outside jacket pipe and inner side heat exchange siphunculus form, and the outside of its double-layer sleeve structure is light pipe or finned tube, and is provided with heat-pipe working medium in the jacket pipe of outside.
In described common heat exchanger tube, establish common light pipe or the finned tube of working medium.
Described common heat exchanger tube is horizontal or vertical or is inclined in gas casing.
Described common heat exchanger tube is 0 °-20 ° through the angle of inclination of through hole on tube sheet.
Described heat-exchanger rig is arranged in horizontal flue or in vertical gas pass.
The utility model has the advantages that:
Owing to having adopted the combined type waste-heat recovery device of said structure in chimney meatus transmitting smoke, by radial heat pipe, conducting heat stack gases heat is being passed to soft water, producing steam, both reducing flue gas exhaust gas temperature, improve heat utilization efficiency, can effectively avoid dew point corrosion again.
The flue gas waste-heat recovery device that this combination of take radial heat pipe and common heat exchanger tube is heat-exchanging component, 160 ± 10 ℃ of the contingent temperature provinces of dew point corrosion, be that preheating heat-changing tube group adopts radial heat pipe, heat exchanger tube is horizontally disposed, radial heat pipe is sleeve structure, in pipe, being soft water, is working medium in chuck, by radial heat pipe heat conduction, flue gas heat in flue is passed to soft water, produce steam, utilize radial heat pipe technology can effectively prevent the dew point corrosion of recyclegas; Avoiding 160 ℃ of dew-point temperature region >, be evaporating heat-exchanging pipe group and overheated set of heat exchange tubes, adopt disposable common heat exchanger tube, the heat exchange efficiency of its common heat exchanger tube is higher, has effectively improved the service life of the thermal efficiency and equipment.
accompanying drawing explanation:
Fig. 1 is that the radial heat pipe-common heat exchanger tube of the utility model heat-exchanger rig is vertically set on the structural representation of horizontal flue through the through hole on tube sheet.
Fig. 2 is that the radial heat pipe-common heat exchanger tube of the utility model heat-exchanger rig is horizontally set on the structural representation of vertical gas pass through the through hole on tube sheet.
Fig. 3 is that the radial heat pipe-common heat exchanger tube of the utility model heat-exchanger rig is inclined at the structural representation of horizontal flue through the through hole on tube sheet.
Fig. 4 is that the radial heat pipe-common heat exchanger tube of the utility model heat-exchanger rig is through the through hole level on tube sheet or be inclined at the structural representation of vertical gas pass.
Fig. 5 is the structural representation of the utility model radial heat pipe.
Fig. 6 is the vertically disposed structural representation of the common heat exchanger tube of the utility model.
Fig. 7 is the structural representation that the common heat exchanger tube of the utility model is obliquely installed.
Fig. 8 is the structural representation that the common heat exchanger tube of the utility model is finned tube.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the box-like waste-heat recovery device of radial heat pipe for flue gas of the present utility model-common set of heat exchange tubes, comprises gas casing 1, is arranged on the heat-exchanger rig in gas casing 1, it is characterized in that:
The side plate of described gas casing 1 is tube sheet 5, on described tube sheet 5, have through hole, the two ends of gas casing 1 are respectively gas approach and exhanst gas outlet, top at described gas casing 1 is provided with steam-water separator 10, heat-exchanger rig described in the utility model is comprised of preheating heat-changing tube group and evaporating heat-exchanging pipe group, described preheating heat-changing tube group by radial heat pipe 7 and radial heat pipe 7 connects therewith water inlet header I 6 and water outlet header I 8 formed, its radial heat pipe 7 one end are connected with water inlet header I 6, the other end is connected with water outlet header I 8, the water inlet of water inlet header I 6 is connected with soft water entrance, the delivery port of water outlet header I 8 is connected with steam-water separator 10 by tube connector, described radial heat pipe 7 is arranged on outside gas casing 1 through the through hole two ends on tube sheet 5, its tube sheet 5 plays a supportive role.
Described evaporating heat-exchanging pipe group 3 is by common heat exchanger tube 11, water inlet header II 4 and go out vapour case 9 and formed, described common heat exchanger tube 11 one end are connected with water inlet header II 4, the other end with go out vapour header 9 and be connected, the water inlet of described water inlet header II 4 is connected with the bottom of steam-water separator 10 by pipeline, and the described vapour header 9 that goes out is connected with the top of steam-water separator 10 by tube connector.
The flue gas waste-heat recovery device that this combination of take radial heat pipe 7 and common heat exchanger tube 11 is heat-exchanging component, 160 ± 10 ℃ of the contingent temperature provinces of dew point corrosion, be that preheating heat-changing tube group adopts radial heat pipe 7, utilize radial heat pipe technology can effectively prevent the dew point corrosion of recyclegas; Avoiding 160 ℃ of dew-point temperature region >, be evaporating heat-exchanging pipe group, adopt disposable common heat exchanger tube, the heat exchange efficiency of its common heat exchanger tube is higher; Effectively improved the service life of the thermal efficiency and equipment.
As shown in Figure 5, the radial heat pipe 7 of preheating heat-changing tube group 2 described in the utility model is the double-layer sleeve structure that outside jacket pipe 7-1 and inner side heat exchange siphunculus 7-2 form, the outside of its double-layer sleeve structure is light pipe or finned tube, and is provided with heat-pipe working medium 7-3 in the jacket pipe 7-1 of outside.
In the inner side heat exchange siphunculus 7-2 of described radial heat pipe, logical soft water, is working media in the jacket pipe 7-1 of outside, by radial heat pipe heat conduction, flue gas heat in flue is passed to soft water, produces steam, to reach the object of heat exchange.
As shown in Figure 6, described common heat exchanger tube 11 is established common light pipe or the finned tube 11-1 of working medium 11--2 in being.
As shown in Fig. 1-8, common heat exchanger tube 11 described in the utility model can need horizontal or vertical or be inclined in gas casing 1 according to technique.Its common heat exchanger tube is 0 °-20 ° through the angle of inclination of through hole on tube sheet.
It is little that the utility model is 160 ± 10 ℃ of the contingent temperature provinces of dew point corrosion that preheating heat-changing tube group adopts radial heat pipe 7 to have required working medium rising power with respect to axial heat pipe, unit interval working medium circulation often, the advantages such as the entrained latent heat of vaporization is more, and effectively avoid dew point corrosion; And in the temperature province of 160 ℃ of flue-gas temperature >, avoiding dew point corrosion temperature province in other words, and adopt common heat exchanger tube not only to make simply, and heat exchange efficiency is higher, effectively improved heat exchange efficiency and in service life of equipment.
According to process conditions requirement, heat-exchanger rig described in the utility model is arranged in horizontal flue or in vertical gas pass.
Fig. 1-4 show respectively the heat-exchanger rig level being arranged in gas casing or are vertically set on flue inner structure schematic diagram.
Claims (6)
1. the box-like waste-heat recovery device of radial heat pipe for flue gas-common set of heat exchange tubes, comprise gas casing, be arranged on the heat-exchanger rig in gas casing, it is characterized in that: the side plate of described gas casing is tube sheet, on described tube sheet, have through hole, the two ends of gas casing are respectively gas approach and exhanst gas outlet, top at described gas casing is provided with steam-water separator, described heat-exchanger rig is comprised of preheating heat-changing tube group and evaporating heat-exchanging pipe group, described preheating heat-changing tube group is comprised of with radial heat pipe is connected therewith water inlet header and water outlet header I radial heat pipe, its radial heat pipe one end is connected with water inlet header I, the other end with go out header I and be connected, the water inlet of water inlet header I is connected with soft water entrance, the delivery port of water outlet header I is connected with steam-water separator by tube connector, it is external that described radial heat pipe is arranged on gas cabinet through the through hole two ends on tube sheet, described evaporating heat-exchanging pipe group is by common heat exchanger tube, water inlet header II and go out vapour case and form, described common heat exchanger tube one end is connected with water inlet header II, the other end with go out vapour header and be connected, the water inlet of described water inlet header II is connected with the bottom of steam-water separator by pipeline, the described vapour header that goes out is connected with the top of steam-water separator by tube connector.
2. the box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas according to claim 1, the radial heat pipe that it is characterized in that described preheating heat-changing tube group is the double-layer sleeve structure that outside jacket pipe and inner side heat exchange siphunculus form, the outside of its double-layer sleeve structure is light pipe or finned tube, and is provided with heat-pipe working medium in the jacket pipe of outside.
3. the box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas according to claim 1, is characterized in that described common heat exchanger tube establishes common light pipe or the finned tube of working medium in being.
4. the box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas according to claim 1, is characterized in that described common heat exchanger tube is horizontal or vertical or is inclined in gas casing.
5. the box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas according to claim 4, is characterized in that common heat exchanger tube is 0 °-20 ° through the angle of inclination of through hole on tube sheet.
6. the box-like waste-heat recovery device of radial heat pipe-common set of heat exchange tubes for flue gas according to claim 1, is characterized in that described heat-exchanger rig is arranged in horizontal flue or in vertical gas pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391602.5U CN203478165U (en) | 2013-07-03 | 2013-07-03 | Radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391602.5U CN203478165U (en) | 2013-07-03 | 2013-07-03 | Radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas |
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| CN203478165U true CN203478165U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320391602.5U Expired - Lifetime CN203478165U (en) | 2013-07-03 | 2013-07-03 | Radial heat pipe-common heat exchange pipe combined waste heat recovery device for flue exhaust gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292305A (en) * | 2013-07-03 | 2013-09-11 | 中冶焦耐工程技术有限公司 | Radial heat tube-ordinary heat exchange tube combined type waste heat recovery device for flue tail gases |
| CN105841530A (en) * | 2016-04-22 | 2016-08-10 | 中国舰船研究设计中心 | Marine heat pipe type waste heat economizer |
| CN108870367A (en) * | 2018-08-17 | 2018-11-23 | 高晨光 | Steam generator and its manufacturing method |
-
2013
- 2013-07-03 CN CN201320391602.5U patent/CN203478165U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292305A (en) * | 2013-07-03 | 2013-09-11 | 中冶焦耐工程技术有限公司 | Radial heat tube-ordinary heat exchange tube combined type waste heat recovery device for flue tail gases |
| CN105841530A (en) * | 2016-04-22 | 2016-08-10 | 中国舰船研究设计中心 | Marine heat pipe type waste heat economizer |
| CN108870367A (en) * | 2018-08-17 | 2018-11-23 | 高晨光 | Steam generator and its manufacturing method |
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Granted publication date: 20140312 |