CN212644553U - Coke oven crude gas riser pipe configuration waste heat recovery steam generation device - Google Patents
Coke oven crude gas riser pipe configuration waste heat recovery steam generation device Download PDFInfo
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- CN212644553U CN212644553U CN202020843013.6U CN202020843013U CN212644553U CN 212644553 U CN212644553 U CN 212644553U CN 202020843013 U CN202020843013 U CN 202020843013U CN 212644553 U CN212644553 U CN 212644553U
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- steam
- heat exchanger
- inlet
- deaerator
- coke oven
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- 239000007789 gas Substances 0.000 title claims abstract description 28
- 239000000571 coke Substances 0.000 title claims abstract description 26
- 239000002918 waste heat Substances 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000001174 ascending effect Effects 0.000 claims abstract description 26
- 238000011033 desalting Methods 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 238000010612 desalination reaction Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000004939 coking Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
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- Physical Water Treatments (AREA)
Abstract
A waste heat recovery and steam generation device configured on a raw gas riser of a coke oven comprises a riser heat exchanger, a steam drum, a deaerator and a desalting device; a first outlet and a second outlet of the steam drum 1 are connected with an inlet of the ascending pipe heat exchanger 8 through a pipeline, and a first outlet of the ascending pipe heat exchanger 8 is connected with a first inlet of the steam drum 1 through a pipeline to form a circulating pipeline; the outlet of the deaerator 5 is connected with the second inlet of the steam drum, and the desalting device is connected with the first inlet of the deaerator 5. The riser heat exchanger made of special ceramics does not deposit dust and scale, thereby avoiding the problem of coking and scaling in the riser heat exchanger; meanwhile, the device has a water supply structure and a steam-water mixing supply structure, saturated steam of 0.5-1.6 MPa can be generated inside the steam drum, waste heat of raw coke oven gas can be fully recovered, and production efficiency of enterprises is improved.
Description
Technical Field
The utility model belongs to the technical field of coking energy conservation, in particular to a device for recovering waste heat and generating steam by using a crude gas riser of a coke oven.
Background
Industrial waste heat resources generally exist, particularly in the production process of industries such as steel, chemical industry and the like, the industrial waste heat resources have the characteristic of clean energy, but the recovery rate is not high, particularly raw coke oven gas. Because tar and steam in the raw gas are easy to coke and deposit carbon, and hydrogen sulfide and steam are easy to cause equipment corrosion, the raw gas is high-temperature flammable, and the sensible heat recovery difficulty is high. In the traditional production process, the raw gas is usually discharged in the form of energy flow, so that the waste of heat of the raw gas is caused.
In the coke production process, the blended coal is heated and dry distilled in a coke oven by isolated air, and a large amount of raw coke oven gas is generated while producing coke, wherein the main components of the raw coke oven gas are hydrogen, methane, carbon monoxide, water vapor, tar, crude benzene, ammonia and the like. From the heat balance distribution in the coking production process, in the coking process, the crude gas at 650-750 ℃ escaping from the ascending pipe of the coking chamber carries out 30-36% of the heat of the coke oven. In order to cool the raw coke oven gas, a large amount of 70-75 ℃ circulating ammonia water must be sprayed, the circulating ammonia water is evaporated in a large amount to cool the high-temperature raw coke oven gas to 82-85 ℃, and then the high-temperature raw coke oven gas is cooled to 22-35 ℃ by a primary cooler, and a large amount of heat energy is lost: wherein about 75-80% is used for evaporating ammonia water, 10-15% is used for heating ammonia water, and the rest 10% is the heat dissipation loss of the gas collecting pipe. The waste of high-grade heat energy is serious due to the large yield of raw gas and the high outlet temperature of the riser.
When water in a steam drum enters the ascending pipe through the water inlet pipe to generate pressure difference in the process of generating steam by recovering waste heat of the coke oven raw gas ascending pipe, and a circulating pipeline is formed when a steam-water mixture comes out of the ascending pipe and then enters the steam drum, water in the water inlet pipe and the water outlet pipe is unevenly distributed due to different water quantities at each pipeline end of the water inlet pipe and the water outlet pipe. Even the inner wall of the riser heat exchanger has the phenomena of water leakage, tar and graphite deposition, dry burning and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coke oven raw gas tedge disposes waste heat recovery and produces steam device to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a waste heat recovery and steam generation device configured on a raw gas riser of a coke oven comprises a riser heat exchanger, a steam drum, a desalting device and a deaerator; a first outlet and a second outlet of the steam drum are connected with an inlet of the ascending pipe heat exchanger through a pipeline, and a first outlet of the ascending pipe heat exchanger is connected with a first inlet of the steam drum through a pipeline to form a circulating pipeline; the outlet of the deaerator is connected with the second inlet of the steam drum, and the desalting device is connected with the first inlet of the deaerator.
Furthermore, a third outlet of the steam drum is divided into two paths, one path is connected with a second inlet of the deaerator, and the other path is connected with a steam pipe network of the plant area.
Further, the desalination device includes demineralized water pump and demineralized water tank, and the demineralized water pump is connected to the demineralized water pump, and the first entry of deaerator is connected to the demineralized water tank, is provided with the deoxidization water pump between the first entry of demineralized water tank and deaerator.
Furthermore, a plurality of valves and circulating pumps are arranged on a circulating pipeline between the steam pocket and the ascending pipe heat exchanger; and a water inlet pipeline on a circulating pipeline between the steam drum and the ascending pipe heat exchanger is subjected to step annular water distribution configuration.
Furthermore, 2 gate valves are arranged on a water inlet pipeline on a circulating pipeline between the steam pocket and the ascending pipe heat exchanger to control water inflow when step annular water distribution configuration is carried out.
Further, a steam pocket water feeding pump is arranged between the steam pocket and the deaerator; the rising pipe heat exchanger is a ceramic rising pipe heat exchanger.
Compared with the prior art, the utility model discloses there is following technological effect:
the ascending jacketed pipe heat exchanger made of ceramics of the utility model does not deposit dust and scale, thereby avoiding the problem of coking and scaling in the ascending pipe heat exchanger; meanwhile, the device has a water supply structure and a steam-water mixing supply structure, saturated steam of 0.5-1.6 MPa can be generated inside the steam drum, and the production efficiency of an enterprise is improved.
Further, the demineralized water tank provides demineralized water to the deaerator; demineralized water enters a steam drum after being heated by steam, water in the steam drum enters an ascending pipe to generate a steam-water mixture and then returns to the steam drum, steam is separated in the steam drum, and the steam is discharged from the top of the steam drum to be used by a deaerator and a steam pipe network in a plant area.
Furthermore, the steam discharged from the top of the steam drum can be used for chemical production, power generation, heating or refrigeration and other projects.
Drawings
Fig. 1 a schematic view of the device of the present invention.
Wherein, 1 is a steam drum; 2 a demineralized water pump; 3 is a deoxygenation water pump; 4 a demineralized water tank; 5 is a deaerator; 6 is a steam pocket water supply pump; 7 is a circulating pump; 8 is a riser heat exchanger; a is a gate valve, and b is a gate valve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1, a coke oven crude gas riser utilizes annular water distribution configuration waste heat recovery to generate steam device, which comprises a riser heat exchanger 8, a steam pocket 1 and a deaerator 5; a first outlet and a second outlet of the steam drum 1 are connected with an inlet of the ascending pipe heat exchanger 8 through a pipeline, and a first outlet of the ascending pipe heat exchanger 8 is connected with a first inlet of the steam drum 1 through a pipeline to form a circulating pipeline; the outlet of the deaerator 5 is connected with the second inlet of the steam drum, and the desalting device is connected with the first inlet of the deaerator 5.
The riser heat exchanger 8 is made of ceramic material.
And a third outlet of the steam pocket 1 is divided into two paths, one path is connected with a second inlet of the deaerator 5, and the other path is connected with a steam pipe network of a plant area.
The desalination device includes demineralized water pump 2 and demineralized water tank 4, and demineralized water pump 2 connects demineralized water tank 4, and demineralized water tank 4 connects the first entry of oxygen-eliminating device 5, is provided with deoxidization water pump 3 between the first entry of demineralized water tank 4 and oxygen-eliminating device 5.
A plurality of valves and circulating pumps 7 are arranged on a circulating pipeline between the steam drum 1 and the ascending pipe heat exchanger 8.
And a water inlet pipeline on a circulating pipeline between the steam drum 1 and the ascending pipe heat exchanger 8 is subjected to step annular water distribution configuration.
2 gate valves are arranged on a water inlet pipeline on a circulating pipeline between the steam pocket 1 and the ascending pipe heat exchanger 8 to control the water inlet amount when the cascade annular water distribution configuration is carried out.
A drum water feeding pump 6 is arranged between the drum 1 and the deaerator 5.
As shown in fig. 1, demineralized water enters a demineralized water tank 4 through a demineralized water pump 2, the demineralized water is fed into a deaerator 5 through a deaerator water pump 3, a steam pocket water feed pump 6 pumps water into a steam pocket 1 from the deaerator 5, the steam pocket 1 is connected with an ascending pipe heat exchanger made of special ceramics through a pipeline, the pipeline utilizes step annular configuration, water in the steam pocket 1 is pumped into an ascending pipe to generate a steam-water mixture, the steam-water mixture is subjected to steam-water separation in the steam pocket 1, the ascending pipe heat exchanger is connected with a circulating pump 7 through a pipeline, the circulating pump 7 is used for accelerating heat exchange between an ascending heat exchange pipe and the steam pocket 1, saturated steam separated from the steam pocket is divided into two paths, one path is used by the deaerator of the system, and the other path is used for.
Claims (6)
1. A waste heat recovery and steam generation device configured on a coke oven raw gas riser is characterized by comprising a riser heat exchanger (8), a steam drum (1), a desalting device and a deaerator (5); a first outlet and a second outlet of the steam drum (1) are connected with an inlet of the ascending pipe heat exchanger (8) through a pipeline, and a first outlet of the ascending pipe heat exchanger (8) is connected with a first inlet of the steam drum (1) through a pipeline to form a circulating pipeline; the outlet of the deaerator (5) is connected with the second inlet of the steam drum, and the desalting device is connected with the first inlet of the deaerator (5).
2. The coke oven raw gas riser pipe configured waste heat recovery steam generation device as claimed in claim 1, wherein a third outlet of the steam drum (1) is divided into two paths, one path is connected with a second inlet of the deaerator (5), and the other path is connected with a steam pipe network of a plant area.
3. The coke oven raw gas riser configuration waste heat recovery steam generation device as claimed in claim 1, characterized in that the desalination device comprises a desalination water pump (2) and a desalination water tank (4), the desalination water pump (2) is connected with the desalination water tank (4), the desalination water tank (4) is connected with the first inlet of the deaerator (5), and the deaerating water pump (3) is arranged between the desalination water tank (4) and the first inlet of the deaerator (5).
4. The coke oven raw gas riser configuration waste heat recovery steam generation device as claimed in claim 1, characterized in that a plurality of valves and circulating pumps (7) are arranged on a circulating pipeline between the steam drum (1) and the riser heat exchanger (8); a water inlet pipeline on a circulating pipeline between the steam drum (1) and the ascending pipe heat exchanger (8) is configured with cascade annular water distribution.
5. The coke oven raw gas riser configuration waste heat recovery steam generating device as claimed in claim 4, characterized in that 2 gate valves are arranged to control the water inflow when the water inlet pipeline on the circulating pipeline between the steam drum (1) and the riser heat exchanger (8) is configured with cascade annular water distribution.
6. The coke oven raw gas riser configuration waste heat recovery steam generation device as claimed in claim 1, characterized in that a drum feed water pump (6) is arranged between the drum (1) and the deaerator (5); the rising pipe heat exchanger is a ceramic rising pipe heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020843013.6U CN212644553U (en) | 2020-05-19 | 2020-05-19 | Coke oven crude gas riser pipe configuration waste heat recovery steam generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020843013.6U CN212644553U (en) | 2020-05-19 | 2020-05-19 | Coke oven crude gas riser pipe configuration waste heat recovery steam generation device |
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| Publication Number | Publication Date |
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| CN212644553U true CN212644553U (en) | 2021-03-02 |
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| CN202020843013.6U Active CN212644553U (en) | 2020-05-19 | 2020-05-19 | Coke oven crude gas riser pipe configuration waste heat recovery steam generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836223A (en) * | 2022-05-13 | 2022-08-02 | 安徽工业大学 | Coke oven riser waste heat recovery system |
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2020
- 2020-05-19 CN CN202020843013.6U patent/CN212644553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836223A (en) * | 2022-05-13 | 2022-08-02 | 安徽工业大学 | Coke oven riser waste heat recovery system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province, 710016 Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province, 710016 Patentee before: Shaanxi Yuteng Energy Environmental Protection Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 710018 room 604, floor 6, Zhonggang International Building B, Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province, 710016 Patentee before: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Steam Generation Device for Waste Heat Recovery of Coke Oven Raw Gas Riser Configuration Effective date of registration: 20230403 Granted publication date: 20210302 Pledgee: China Construction Bank Corporation Xi'an Economic and Technological Development Zone Branch Pledgor: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Registration number: Y2023610000238 |