CN220283983U - Double-steam-bag self-deoxidizing coke oven riser waste heat recycling system - Google Patents
Double-steam-bag self-deoxidizing coke oven riser waste heat recycling system Download PDFInfo
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- CN220283983U CN220283983U CN202321676456.0U CN202321676456U CN220283983U CN 220283983 U CN220283983 U CN 220283983U CN 202321676456 U CN202321676456 U CN 202321676456U CN 220283983 U CN220283983 U CN 220283983U
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- China
- Prior art keywords
- steam
- deoxidizing
- coke oven
- drum
- waste heat
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- 239000000571 coke Substances 0.000 title claims abstract description 46
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000001174 ascending effect Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000011033 desalting Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000004939 coking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
- 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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- Coke Industry (AREA)
Abstract
The utility model discloses a double-steam-drum self-deoxidizing coke oven riser waste heat recycling system which comprises a desalting water tank, a desalting water pump, a deoxidizing head, a steam drum, a forced circulation pump and a coke oven riser heat exchanger which are connected in sequence, wherein the coke oven riser heat exchanger is connected with the steam drum, and the deoxidizing head and the steam drum are at least provided with 2 groups. The novel double-drum self-deoxidizing coke oven riser waste heat recycling system is used for combining the independent deaerator with the independent drum, so that a water supply pump system between the independent deaerator and the independent drum is subtracted, and compared with a traditional system, the novel double-drum self-deoxidizing coke oven riser waste heat recycling system is simple in structure, the reliability of the system is enhanced, and the operation and maintenance cost is reduced; two steam drums and the deoxidizing heads are connected in parallel, one of the steam drums and the deoxidizing heads can be isolated through the connected valve group, and the isolated steam drum deoxidizing head can be overhauled and annual inspection.
Description
Technical Field
The utility model relates to the field of waste heat utilization, in particular to a double-steam-bag self-deoxidizing coke oven riser waste heat recycling system.
Background
The efficient recycling of waste heat resources generated in the coking process flow is a main direction for establishing energy conservation of a green coking plant with resource conservation and environmental friendliness, and is one of main ways for reducing energy consumption of a coke oven. In the prior art, waste heat recovery of raw coke oven gas is realized by adopting a coke oven ascending pipe with a heat exchange function, the waste heat recovery system generally comprises an ascending pipe heat exchanger, a steam drum, a deaerator and the like, desalted water in the ascending pipe heat exchanger enters the deaerator for deaeration, then enters the steam drum through a water supply pump, and enters the ascending pipe heat exchanger through the steam drum for absorbing heat and evaporating and then returns to the steam drum for realizing gas-liquid separation, and separated steam is input into a gas system. The system comprises an independent deaerator and an independent steam drum, and comprises a desalting water pump, a water supply pump and a forced circulation pump, and is large in equipment quantity and complex in system.
The steam drum belongs to a pressure vessel, and according to Rong Gui (fixed pressure vessel safety technology supervision regulations), the steam drum needs to be shut down and overhauled in a specified period. However, the coke oven system requires that the whole set of equipment cannot stop production, which contradicts the maintenance requirements of the drum.
Disclosure of Invention
The utility model aims to provide a double-steam-bag self-deoxidizing coke oven riser waste heat recycling system, which solves the problems of excessively complex coke oven riser waste heat recycling system and high operation and maintenance cost and meets the requirements of safe and stable operation.
The technical problems of the utility model are mainly solved by the following technical proposal: the double-steam-drum self-deoxidizing coke oven riser waste heat recycling system comprises a desalting water tank, a desalting water pump, deoxidizing heads, steam drums, a forced circulation pump and coke oven riser heat exchangers which are connected in sequence, wherein the coke oven riser heat exchangers are connected with the steam drums, at least 2 groups of deoxidizing heads and the steam drums are arranged, and the number of the coke oven riser heat exchangers is at least 1;
valve groups are respectively arranged between the desalting water pump and the deoxidizing head, between the steam drum and the forced circulation pump, between the forced circulation pump and the coke oven ascending tube heat exchanger, between the coke oven ascending tube heat exchanger and the steam drum and on outlet pipelines of the steam drum;
the deoxidizing head is connected with the steam drum to form an integral device, deoxidizing and steam-water separation in the system are completed in the integral device, and the deoxidizing water is pumped to the integral device formed by the deoxidizing head and the steam drum by the desalting water pump;
two steam drums and the deoxidizing heads are connected in parallel, one of the steam drums and the deoxidizing heads can be isolated through a connected valve group, and the isolated steam drum deoxidizing head can be overhauled and annual inspected; a valve group is arranged in parallel between the water outlets of the plurality of coke oven riser heat exchangers, and the water outlet can be controlled to flow to which steam drum through the valve group.
The deaeration of the deaeration water in the deaeration head is high-temperature deaeration, and the heat required by the high temperature is provided by the steam-water mixture in the steam drum.
The beneficial effects of the utility model are as follows:
(1) The novel double-drum self-deoxidizing coke oven riser waste heat recycling system combines the independent deaerator with the independent drum, and subtracts the water supply pump system between the independent deaerator and the independent drum, compared with the traditional system, the novel double-drum self-deoxidizing coke oven riser waste heat recycling system has the advantages of simple structure, less equipment quantity, convenience in control and stability in operation, enhances the reliability of the system, and reduces the equipment investment cost and the operation maintenance cost.
(2) The device has the advantages of simple structure, convenient installation and low installation cost.
(3) Two steam drums and the deoxidizing heads are connected in parallel, one of the steam drums and the deoxidizing heads can be isolated through the connected valve group, and the isolated steam drum deoxidizing head can be overhauled and annual inspection.
Drawings
FIG. 1 is a schematic diagram of the general architecture of an implementation of the present utility model;
reference numerals illustrate: 1. a desalting water tank 2, a desalting water pump 3, a deoxidizing head 4, a steam drum 5, a forced circulation pump 6 and a coke oven riser heat exchanger.
Description of the embodiments
The technical scheme of the utility model is further specifically described below by means of examples and with reference to the accompanying drawings.
Examples: the utility model designs a double-steam-drum self-deoxidizing coke oven riser waste heat recycling system, which structurally comprises a desalting water tank 1, a desalting water pump 2, a deoxidizing head 3, a steam drum 4, a forced circulation pump 5 and a coke oven riser heat exchanger 6 which are connected in sequence.
The water of the demineralized water tank 1 in the system comes from a demineralized water system in a factory, and the demineralized water pump 2 pumps the demineralized water in the demineralized water tank 1 to the deoxidizing head 3.
The structure of the deoxidizing head 3 is vertical, the deoxidizing head 3 internally comprises a deoxidizing nozzle and a water spraying disc, the deoxidizing head 3 deoxidizes desalted water and heats the desalted water to about 160 ℃, the deoxidizing head 3 and a steam drum 4 at the lower part are integrated equipment, and the heat required by deoxidizing is provided by the steam drum 4.
The deaerated water is deoxidized to form deaerated water which enters the steam drum 4, the deaerated water in the steam drum 4 is pumped to the coke oven ascending tube heat exchanger 6 by the forced circulation pump 5 to be heated, the deaerated water is in a steam-water mixture state after being heated, and the steam-water mixture leaves the coke oven ascending tube heat exchanger 6 to enter the steam drum 4.
The steam drum 4 is horizontal in structure, the inside of the steam drum 4 comprises a steam-water separator, steam-water mixture from the coke oven riser heat exchanger 6 is subjected to steam-water separation in the steam drum 4, part of steam is sent to a steam pipe network, and part of steam is used for providing heat for the deoxidizing head 3.
The two groups of the steam drums 4 and the deoxidizing heads 3 are connected in parallel, the inlet and the outlet are provided with valve groups, the valve groups can control the flow direction of fluid working media, one of the steam drums and the deoxidizing heads can be isolated in the operation process when necessary, the other steam drum and the deoxidizing heads can work normally, and the isolated steam drums and deoxidizing heads can be overhauled and annual inspection independently.
The novel double-drum self-deoxidizing coke oven riser waste heat recycling system combines the independent deaerator with the independent drum, and subtracts the water supply pump system between the independent deaerator and the independent drum, compared with the traditional system, the novel double-drum self-deoxidizing coke oven riser waste heat recycling system has the advantages of simple structure, convenience in control, enhancement of the reliability of the system and reduction of operation and maintenance costs. Two steam drums and the deoxidizing heads are connected in parallel, one of the steam drums and the deoxidizing heads can be isolated through the connected valve group, and the isolated steam drum deoxidizing head can be overhauled and annual inspection.
Claims (8)
1. A double-steam-bag self-deoxidizing coke oven riser waste heat recycling system is characterized in that: including demineralized water tank (1), demineralized water pump (2), deoxidization head (3), steam pocket (4), forced circulation pump (5), coke oven tedge heat exchanger (6) that connect gradually, coke oven tedge heat exchanger (6) are connected with steam pocket (4), deoxidization head (3), steam pocket (4) are provided with 2 groups at least, the quantity of coke oven tedge heat exchanger (6) is 1 at least.
2. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1, wherein the system comprises: valve groups are respectively arranged between the demineralized water pump (2) and the deoxidizing head (3), between the steam drum (4) and the forced circulation pump (5), between the forced circulation pump (5) and the coke oven ascending tube heat exchanger (6), between the coke oven ascending tube heat exchanger (6) and the steam drum (4) and on outlet pipelines of the steam drum (4).
3. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1, wherein the system comprises: the water outlets of the coke oven ascending pipe heat exchangers (6) are connected through pipelines, and valve groups are arranged on the connected pipelines.
4. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1, wherein the system comprises: the deaeration head (3) is connected with the steam drum (4) to form an integral device.
5. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1, wherein the system comprises: demineralized water in the demineralized water tank (1) flows into the deoxidizing head (3) from the demineralized water tank (1) through pressurization of the demineralized water pump (2), and the demineralized water is deoxidized in the deoxidizing head (3) to form deoxidized water.
6. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1 or 5, wherein: the deoxidized water flows into a coke oven riser heat exchanger (6) from a steam drum (4) under pressure by a forced circulation pump (5), is heated to form a steam-water mixture, and then returns to the steam drum (4).
7. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 1, wherein the system comprises: the steam drum (4) is internally provided with a steam-water separation device, steam-water mixture is subjected to steam-water separation in the steam drum (4), and steam is sent to a steam pipe network after being separated.
8. The dual-steam-pocket self-deoxidizing coke oven riser waste heat recycling system according to claim 5 or 7, wherein: the deaeration of the deaeration water in the deaeration head (3) is high-temperature deaeration, and heat required by high temperature is provided by a steam-water mixture in the steam drum (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676456.0U CN220283983U (en) | 2023-06-29 | 2023-06-29 | Double-steam-bag self-deoxidizing coke oven riser waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676456.0U CN220283983U (en) | 2023-06-29 | 2023-06-29 | Double-steam-bag self-deoxidizing coke oven riser waste heat recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220283983U true CN220283983U (en) | 2024-01-02 |
Family
ID=89338737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321676456.0U Active CN220283983U (en) | 2023-06-29 | 2023-06-29 | Double-steam-bag self-deoxidizing coke oven riser waste heat recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220283983U (en) |
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2023
- 2023-06-29 CN CN202321676456.0U patent/CN220283983U/en active Active
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