CN103756692A - Coke oven tedge waste heat recovery device - Google Patents
Coke oven tedge waste heat recovery device Download PDFInfo
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- CN103756692A CN103756692A CN201410051124.2A CN201410051124A CN103756692A CN 103756692 A CN103756692 A CN 103756692A CN 201410051124 A CN201410051124 A CN 201410051124A CN 103756692 A CN103756692 A CN 103756692A
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- 239000000571 coke Substances 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 178
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000008234 soft water Substances 0.000 claims abstract description 17
- 239000011229 interlayer Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000006200 vaporizer Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 229940001516 sodium nitrate Drugs 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 abstract 6
- 238000000034 method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000035924 thermogenesis Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a waste heat recovery device for a coke oven ascending pipe, which comprises an ascending pipe heat exchanger and an evaporator; one end of the ascending pipe heat exchanger is a raw gas inlet communicated with an external ascending pipe, the other end of the ascending pipe heat exchanger is a raw gas outlet, and the evaporator is provided with a soft water inlet and a steam outlet; the device also comprises a salt storage tank provided with a molten salt pump and an electric heater, wherein molten salt is arranged in the salt storage tank; the salt storage tank is provided with a first molten salt inlet and a first molten salt outlet; the ascending tube heat exchanger is provided with a heat exchange interlayer, and the heat exchange interlayer is provided with a second molten salt inlet and a second molten salt outlet; the evaporator is provided with a heat exchange cavity, and the heat exchange cavity is provided with a third molten salt inlet and a third molten salt outlet; the first molten salt outlet is communicated with the second molten salt inlet through a pipeline, the second molten salt outlet is communicated with the third molten salt inlet through a pipeline, and the third molten salt outlet is communicated with the first molten salt inlet through a pipeline; the molten salt pump has a drain pipe in communication with the first molten salt outlet. The invention adopts the fused salt as the heat exchange medium, and can smoothly realize the effective recovery of the heat brought out by the raw coke oven gas.
Description
Technical field
The present invention relates to a kind of waste-heat recovery device, especially a kind of coke oven coke oven uprising tube waste-heat recovery device, belongs to energy-conserving and environment-protective technical field.
Background technology
According to the applicant understood, coke oven can do high temperature carbonization processing to coal, it is converted to efficiently to the products such as coke, coke-oven gas, coal tar, crude benzol, is efficient energy transformation kiln.In coke oven expenditure, hanker, the heat of taking out of of 650 ℃ of-700 ℃ of raw gas accounts for 36%, has high recycling and is worth.At present, conventionally adopt cooling treatment process to realize the industrial application of raw gas, traditional technology is: to high temperature raw gas, spray a large amount of 70 ℃ of-75 ℃ of cyclic ammonia waters and make its cooling, realize waste heat recovery, but this can cause high temperature raw gas to take heat out of wastes because of a large amount of evaporations of cyclic ammonia water.
In the eighties in 20th century, the most of coke-oven plant of Japan once reclaims raw gas by thermal oil for upcast and takes heat out of: they make jacket pipe by upcast, thermal oil is by jacket pipe and high temperature raw gas indirect heat exchange, heated high temperature heat conductive oil can be used for multiple use, for example ammonia still process, Doak Tar Oil, is dried into stove coal etc.Afterwards, China's Ji steel had once carried out similar test at five hole upcasts; The many enterprises such as China's Wuhan Iron and Steel Plant, Ma Gang, Anshan iron and steel plant, ripples steel, coke-oven plant, Beijing, Shenyang coal gas two factories, this steel one iron, coke-oven plant, tafelberg once adopted water vapor cooling technology to reclaim this part heat at upcast; In addition, Ye You enterprise adopt take nitrogen as medium, with the method for high temperature raw gas indirect heat exchange.But more or less there is following problem in above the whole bag of tricks: the structure design of heat transfer process is unreasonable, circulation is unobstructed not, raw gas side wall surface tar bonds the problem of expanding with heat and contract with cold that causes stopping up raw gas passage, thermal oil coking and blocking thermal oil passage or can not effectively solve start-stop car and operational process.This makes above method or is difficult to successful implementation, or is difficult to realize gratifying effect.
Summary of the invention
Technical problem to be solved by this invention is: overcome the problem that prior art exists, a kind of coke oven coke oven uprising tube waste-heat recovery device is provided, adopt fused salt as heat transferring medium, can realize smoothly raw gas is taken out of to hot efficient recovery.
The technical scheme that the present invention solves its technical problem is as follows:
A kind of coke oven coke oven uprising tube waste-heat recovery device, comprises upcast interchanger and vaporizer; Described upcast interchanger one end is that the raw gas import, the other end that are communicated with outside upcast are raw gas outlet, and described vaporizer has soft water import and vapour outlet; It is characterized in that, also comprise the storage salt cellar that is provided with pump for liquid salts and electric heater, in described storage salt cellar, be mounted with fused salt; Described storage salt cellar has the first fused salt entrance and the outlet of the first fused salt; Described upcast interchanger has heat exchanging interlayer, and described heat exchanging interlayer has the second fused salt entrance and the outlet of the second fused salt; Described vaporizer has heat exchanging chamber, and described heat exchanging chamber has the 3rd fused salt entrance and the outlet of the 3rd fused salt; Described the first fused salt outlet is communicated with the second fused salt entrance through pipeline, and described the second fused salt outlet is communicated with the 3rd fused salt entrance through pipeline, and described the 3rd fused salt outlet is communicated with the first fused salt entrance through pipeline; Described pump for liquid salts has with the first fused salt and exports the drain pipe being communicated with.
During use, in storage salt cellar, electric heater is heated to liquid state by fused salt becomes low-temperature molten salt, by pump for liquid salts, low-temperature molten salt is sent into the heat exchanging interlayer of upcast interchanger; Meanwhile, raw gas continues by upcast interchanger, with the low-temperature molten salt heat exchange in upcast interchanger heat exchanging interlayer, become high-temperature molten salt, high-temperature molten salt enters vaporizer through pipeline, becomes low-temperature molten salt after soft water is added to thermogenesis steam, and gets back to storage salt cellar.
The present invention further perfect technical scheme is as follows:
Preferably, described upcast interchanger comprises the inner and outer tubes of coaxially nested and vertical placement, forms the heat exchanging interlayer of sealing between described inner and outer tubes; Described the second fused salt entrance is positioned at outer tube bottom, and described the second fused salt outlet is positioned at outer tube top; The two ends up and down of described upcast interchanger are respectively equipped with flange; The flange of described upcast interchanger upper end is connected through expansion joint and inner tube.
More preferably, described inner tube wall is provided with one group of vertical straight fins radially extending along inner tube; Described outer wall of inner tube is provided with the helical fin coaxial with inner tube.
Adopt after this structure, straight fins can strengthen radiation and the convective heat exchange of raw gas; Helical fin can make fused salt spiral in heat exchanging interlayer, improves heat exchange efficiency; Expansion joint can be alleviated expanding with heat and contract with cold of upcast interchanger.In addition, in this structure, fused salt and raw gas lead to following current and flow, and can make inner tube wall temperature keep evenly.
Preferably, described vaporizer also has drum and water pot, and described drum is positioned at heat exchanging chamber top, and described water pot is positioned at heat exchanging chamber below; Described soft water import is positioned at drum bottom, and described vapour outlet is positioned at drum top; Described drum is communicated with water pot through the one group vertical pipeline through heat exchanging chamber; Described the 3rd fused salt entrance is positioned at heat exchanging chamber bottom, and described the 3rd fused salt outlet is positioned at heat exchanging chamber top; In described heat exchanging chamber, be also provided with traverse baffle.
More preferably, described soft water import is communicated with soft water source through the pipeline that is provided with water pump; Described water pot bottom is provided with water port.
In this structure, soft water enters vaporizer drum bottom through water pump, and by pipeline, enters in water pot under own wt effect; Along with soft water is cumulative in water pot, soft water enters pipeline, and in heat exchanging chamber under the heating of fused salt boiling produce steam water interface, steam water interface is isolated steam after entering drum, steam is discharged by vapour outlet.
Preferably, described storage salt cellar is horizontal placement and is positioned at the below of upcast interchanger and vaporizer, and described electric heater is positioned at the bottom of storage salt cellar, the vertical placement of described pump for liquid salts; Described the first fused salt entrance, the first fused salt outlet lay respectively at storage salt tank top; Described storage salt tank top also has nitrogen pressurization mouthful.
In this structure, storage salt cellar is positioned at the below of complete assembly, in all fused salts when guaranteeing to stop in system pipeline can pass back into smoothly; Electric heater is heated to liquid state fused salt, by pump for liquid salts, fused salt is pumped to the first fused salt and exports; In nitrogen pressurization mouthful, with nitrogen pressurization, can make to store up maintenance in salt cellar, a little more than atmospheric pressure-fired, by effectively isolated to fused salt and atmospheric environment, avoids fused salt rotten.
Preferably, the second fused salt entrance of described upcast interchanger is also communicated with the first fused salt entrance of storage salt cellar through the valvular pipeline of tool; The heat exchanging chamber bottom of described vaporizer is provided with fused salt relief outlet, and described fused salt relief outlet is communicated with the first fused salt entrance of storage salt cellar through the valvular pipeline of tool; Be communicated with the first fused salt outlet and the second fused salt entrance pipeline, is communicated with that the 3rd fused salt exports and the pipeline of the first fused salt entrance has respectively valve.
In this structure, equipment stop or other situation under, can by control each valve unlatching, close, make in vaporizer heat exchanging chamber, the fused salt in upcast interchanger heat exchanging interlayer gets back in storage salt cellar smoothly, avoid causing line clogging because of fused salt cooling curing.
Preferably, described fused salt is by saltpetre, Sodium Nitrite and the SODIUMNITRATE ternary fused salt that 53%:40%:7% forms by weight percentage.
Fused salt, in liquid operating temperature range the highest can be～500 ℃, improved nearly 200 ℃, and the inlet temperature of raw gas has conventionally～800 ℃ than the working temperature of heat conduction wet goods heating agent, and this makes fused salt more can adapt to coke oven coke oven uprising tube waste heat recovery than other heating agent.
The present invention innovate by fused salt for reclaiming raw gas waste heat, and to this specialized designs support equipment, enable smooth enforcement, efficient recovery raw gas waste heat, simultaneously can avoid occurring that thermal oil meets in the easy coking of high temperature, water vapor technology steam and be prone to the problems such as circulation is not smooth.
The present invention is arranged heat absorbing units (upcast interchanger) and heat release unit (vaporizer) point, belong to separate type, on the one hand because coke oven top is typically provided with tens upcasts, the corresponding multiple heat absorbing units in an available heat release unit, even tens heat absorbing units share a heat release unit, make whole device simpler; On the other hand, be in operation and occur if you have questions easily differentiating, and carry out independent maintenance process.
Waste heat recovery amount of the present invention is larger, and steam production is larger, even can produce superheated vapour, can be used for multiple industrial use, even can be directly used in turbine driven set and generate electricity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1, and the arrow in figure represents fluid flow direction.
Fig. 2 is the structural representation of Fig. 1 embodiment upcast interchanger, and the arrow in figure represents fluid flow direction.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the structural representation of Fig. 1 embodiment vaporizer, and the arrow in figure represents fluid flow direction.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.
Embodiment 1
The coke oven coke oven uprising tube interchanger waste-heat recovery device basic structure of the present embodiment as shown in Figure 1, comprises upcast interchanger 2 and vaporizer 3; Upcast interchanger 2 one end are that raw gas import 2-1, the other end are raw gas outlet 2-2, and vaporizer 3 has soft water import 3-1 and vapour outlet 3-2.
Also comprise the storage salt cellar 1 that is provided with pump for liquid salts 1-1 and electric heater 1-2, in storage salt cellar 1, be mounted with fused salt; Storage salt cellar 1 has the first fused salt entrance 1-3 and the first fused salt outlet 1-4; Upcast interchanger 2 has heat exchanging interlayer, and heat exchanging interlayer has the second fused salt entrance 2-3 and the second fused salt outlet 2-4; Vaporizer 3 has heat exchanging chamber 3-3, and heat exchanging chamber 3-3 has the 3rd fused salt entrance 3-4 and the 3rd fused salt outlet 3-5; The first fused salt outlet 1-4 is communicated with the second fused salt entrance 2-3 through pipeline 4-1, and the second fused salt outlet 2-4 is communicated with the 3rd fused salt entrance 3-4 through pipeline 4-2, and the 3rd fused salt outlet 3-5 is communicated with the first fused salt entrance 1-3 through pipeline 4-3; Pump for liquid salts 1-1 has the drain pipe 1-5 being communicated with the first fused salt outlet 1-4.
As shown in Figures 2 and 3, upcast interchanger 2 comprises inner tube 2-5 and the outer tube 2-6 of coaxially nested and vertical placement, forms the heat exchanging interlayer of sealing between inner tube 2-5 and outer tube 2-6; The second fused salt entrance 2-3 is positioned at outer tube 2-6 bottom, and the second fused salt outlet 2-4 is positioned at outer tube 2-6 top; The two ends up and down of upcast interchanger 2 are respectively equipped with flange 2-7,2-8; The flange 2-7 of upcast interchanger 2 upper ends is connected through expansion joint 2-9 and inner tube 2-5.Inner tube 2-5 inwall is provided with one group of vertical straight fins 2-10 radially extending along inner tube 2-5; Inner tube 2-5 outer wall is provided with the helical fin 2-11 coaxial with inner tube 2-5.
As shown in Figure 4, vaporizer 3 also has drum 3-6 and water pot 3-7, and drum 3-6 is positioned at heat exchanging chamber 3-3 top, and water pot 3-7 is positioned at heat exchanging chamber 3-3 below; Soft water import 3-1 is positioned at drum 3-6 bottom, and vapour outlet 3-2 is positioned at drum 3-6 top; Drum 3-6 is communicated with water pot 3-7 through the one group vertical pipeline 3-8 through heat exchanging chamber 3-3; The 3rd fused salt entrance 3-4 is positioned at heat exchanging chamber 3-3 bottom, and the 3rd fused salt outlet 3-5 is positioned at heat exchanging chamber 3-3 top; In heat exchanging chamber 3-3, be also provided with traverse baffle 3-9.Soft water import 3-1 is communicated with soft water source 6 through the pipeline 4-4 that is provided with water pump 5; Water pot 3-7 bottom is provided with water port 3-10.
Storage salt cellar 1 is horizontal placement and is positioned at upcast interchanger 2 and the below of vaporizer 3, and electric heater 1-2 is positioned at the bottom of storage salt cellar 1, the vertical placement of pump for liquid salts 1-1; The first fused salt entrance 1-3, the first fused salt outlet 1-4 lay respectively at storage salt cellar 1 top; Storage salt cellar 1 top also has nitrogen pressurization mouthful 1-7.
The second fused salt entrance 2-3 of upcast interchanger 2 is also communicated with the first fused salt entrance 1-3 of storage salt cellar 1 through the pipeline 4-5 with valve 5-1; The heat exchanging chamber 3-3 bottom of vaporizer 3 is provided with fused salt relief outlet 3-11, and fused salt relief outlet 3-11 is communicated with the first fused salt entrance 1-3 of storage salt cellar 1 through the pipeline 4-6 with valve 5-2; Be communicated with the first fused salt outlet 1-4 and the second fused salt entrance 2-3 pipeline 4-1, be communicated with the pipeline 4-3 that the 3rd fused salt exports 3-5 and the first fused salt entrance 1-3 and there is respectively valve 5-3,5-4.
In addition the fused salt that, the present embodiment adopts is by saltpetre, Sodium Nitrite and the SODIUMNITRATE ternary fused salt that 53%:40%:7% forms by weight percentage.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (8)
1. a coke oven coke oven uprising tube waste-heat recovery device, comprises upcast interchanger and vaporizer; Described upcast interchanger one end is that the raw gas import, the other end that are communicated with outside upcast are raw gas outlet, and described vaporizer has soft water import and vapour outlet; It is characterized in that, also comprise the storage salt cellar that is provided with pump for liquid salts and electric heater, in described storage salt cellar, be mounted with fused salt; Described storage salt cellar has the first fused salt entrance and the outlet of the first fused salt; Described upcast interchanger has heat exchanging interlayer, and described heat exchanging interlayer has the second fused salt entrance and the outlet of the second fused salt; Described vaporizer has heat exchanging chamber, and described heat exchanging chamber has the 3rd fused salt entrance and the outlet of the 3rd fused salt; Described the first fused salt outlet is communicated with the second fused salt entrance through pipeline, and described the second fused salt outlet is communicated with the 3rd fused salt entrance through pipeline, and described the 3rd fused salt outlet is communicated with the first fused salt entrance through pipeline; Described pump for liquid salts has with the first fused salt and exports the drain pipe being communicated with.
2. coke oven coke oven uprising tube waste-heat recovery device according to claim 1, is characterized in that, described upcast interchanger comprises the inner and outer tubes of coaxially nested and vertical placement, forms the heat exchanging interlayer of sealing between described inner and outer tubes; Described the second fused salt entrance is positioned at outer tube bottom, and described the second fused salt outlet is positioned at outer tube top; The two ends up and down of described upcast interchanger are respectively equipped with flange; The flange of described upcast interchanger upper end is connected through expansion joint and inner tube.
3. coke oven coke oven uprising tube waste-heat recovery device according to claim 2, is characterized in that, described inner tube wall is provided with one group of vertical straight fins radially extending along inner tube; Described outer wall of inner tube is provided with the helical fin coaxial with inner tube.
4. coke oven coke oven uprising tube waste-heat recovery device according to claim 1, is characterized in that, described vaporizer also has drum and water pot, and described drum is positioned at heat exchanging chamber top, and described water pot is positioned at heat exchanging chamber below; Described soft water import is positioned at drum bottom, and described vapour outlet is positioned at drum top; Described drum is communicated with water pot through the one group vertical pipeline through heat exchanging chamber; Described the 3rd fused salt entrance is positioned at heat exchanging chamber bottom, and described the 3rd fused salt outlet is positioned at heat exchanging chamber top; In described heat exchanging chamber, be also provided with traverse baffle.
5. coke oven coke oven uprising tube waste-heat recovery device according to claim 4, is characterized in that, described soft water import is communicated with soft water source through the pipeline that is provided with water pump; Described water pot bottom is provided with water port.
6. coke oven coke oven uprising tube waste-heat recovery device according to claim 1, is characterized in that, described storage salt cellar is horizontal placement and is positioned at the below of upcast interchanger and vaporizer, and described electric heater is positioned at the bottom of storage salt cellar, the vertical placement of described pump for liquid salts; Described the first fused salt entrance, the first fused salt outlet lay respectively at storage salt tank top; Described storage salt tank top also has nitrogen pressurization mouthful.
7. according to the coke oven coke oven uprising tube waste-heat recovery device described in claim 1 to 6 any one, it is characterized in that, the second fused salt entrance of described upcast interchanger is also communicated with the first fused salt entrance of storage salt cellar through the valvular pipeline of tool; The heat exchanging chamber bottom of described vaporizer is provided with fused salt relief outlet, and described fused salt relief outlet is communicated with the first fused salt entrance of storage salt cellar through the valvular pipeline of tool; Be communicated with the first fused salt outlet and the second fused salt entrance pipeline, is communicated with that the 3rd fused salt exports and the pipeline of the first fused salt entrance has respectively valve.
8. according to the coke oven coke oven uprising tube waste-heat recovery device described in claim 1 to 6 any one, it is characterized in that, described fused salt is by saltpetre, Sodium Nitrite and the SODIUMNITRATE ternary fused salt that 53%:40%:7% forms by weight percentage.
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| CN201410051124.2A CN103756692B (en) | 2014-02-14 | 2014-02-14 | Coke oven tedge waste heat recovery device |
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| CN201410051124.2A CN103756692B (en) | 2014-02-14 | 2014-02-14 | Coke oven tedge waste heat recovery device |
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| CN104479693A (en) * | 2014-12-22 | 2015-04-01 | 杭州锅炉集团股份有限公司 | Coke oven crude gas latent heat recovery system and method |
| CN104531173A (en) * | 2014-12-22 | 2015-04-22 | 杭州锅炉集团股份有限公司 | Coke oven crude gas riser pipe sensible heat recovery device and coke oven crude gas riser pipe sensible heat recovery method |
| CN104694139A (en) * | 2015-02-13 | 2015-06-10 | 常州江南冶金科技有限公司 | Coke oven raw gas heat exchanger with flow guide device |
| CN104845645A (en) * | 2015-04-30 | 2015-08-19 | 中冶南方工程技术有限公司 | Coke oven gas waste heat recovery system |
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| CN106010590A (en) * | 2016-06-16 | 2016-10-12 | 南京华电节能环保设备有限公司 | Coke oven ascension pipe waste heat recovery device |
| CN107238308A (en) * | 2017-07-25 | 2017-10-10 | 陕西路圣里德太阳能研究院有限公司 | Heat conduction profit finned tube set of heat exchange tubes and energy storage device |
| CN107974260A (en) * | 2016-10-24 | 2018-05-01 | 上海宜知节能环保科技有限公司 | Coke oven coke oven uprising tube raw coke oven gas residual neat recovering system |
| CN110145471A (en) * | 2019-05-14 | 2019-08-20 | 江苏飞跃机泵集团有限公司 | A kind of high-temperature melting salt pump compbined test detection device and test method |
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| CN107974260A (en) * | 2016-10-24 | 2018-05-01 | 上海宜知节能环保科技有限公司 | Coke oven coke oven uprising tube raw coke oven gas residual neat recovering system |
| CN107238308A (en) * | 2017-07-25 | 2017-10-10 | 陕西路圣里德太阳能研究院有限公司 | Heat conduction profit finned tube set of heat exchange tubes and energy storage device |
| CN110145471A (en) * | 2019-05-14 | 2019-08-20 | 江苏飞跃机泵集团有限公司 | A kind of high-temperature melting salt pump compbined test detection device and test method |
| WO2023071976A1 (en) * | 2021-10-26 | 2023-05-04 | 陈彦峰 | Heat exchange device |
| GB2627626A (en) * | 2021-10-26 | 2024-08-28 | Fung Evans CHAN Yin | Heat exchange device |
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