CN220939851U - Waste heat recovery and exhaust steam recovery system for coke oven riser - Google Patents
Waste heat recovery and exhaust steam recovery system for coke oven riser Download PDFInfo
- Publication number
- CN220939851U CN220939851U CN202322658026.2U CN202322658026U CN220939851U CN 220939851 U CN220939851 U CN 220939851U CN 202322658026 U CN202322658026 U CN 202322658026U CN 220939851 U CN220939851 U CN 220939851U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- outlet
- inlet
- steam
- steam recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 77
- 239000000571 coke Substances 0.000 title claims abstract description 23
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 230000000737 periodic effect Effects 0.000 claims abstract description 22
- 238000011033 desalting Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to the technical field of coke oven waste heat utilization, in particular to a waste heat recovery and exhaust steam recovery system of a coke oven riser. Comprises a steam drum, a periodic blowdown expander, a desalting water tank, a dead steam recovery device and a deaerator; the first outlet of the steam drum is connected with the inlet of the periodic blowdown expander through a pipeline, and the outlet of the periodic blowdown expander is connected with the first inlet of the exhaust steam recovery device through a pipeline; the deaerator outlet is connected with the second inlet of the exhaust steam recovery device through a pipeline; the second outlet of the steam drum is connected with the third inlet of the exhaust steam recovery device through a pipeline; the outlet of the demineralized water tank is connected with the fourth inlet of the exhaust steam recovery device through a pipeline, and the first outlet of the exhaust steam recovery device is connected with the first inlet of the demineralized water tank through a pipeline; and a second outlet of the exhaust steam recovery device is connected with an inlet of the deaerator through a pipeline. The sensible heat of the waste steam of the coke oven riser can be fully recovered, the condensate water generated by the recovery of the waste steam is utilized, and the consumption of desalted water is reduced.
Description
Technical Field
The utility model relates to the technical field of coke oven waste heat utilization, in particular to a waste heat recovery and exhaust steam recovery system of a coke oven riser.
Background
Under the large background of advocating circular economy, sustainable development and ecological environment protection at present, the waste heat of the coke oven riser is recycled, and the method has great economic benefit and significance of energy conservation and emission reduction, so that the technology for utilizing the waste heat of the coke oven riser is gradually raised.
At present, in the running process of a coke oven rising pipe waste heat system, a large amount of waste steam emission can be generated by steam carrying equipment such as a steam drum, a periodic blowdown expander, a deaerator and the like, and the disordered steam emission has great influence on environmental protection and is also extremely wasteful of energy.
How to fully recover the sensible heat of the waste steam of the coke oven riser, further improve the comprehensive energy utilization rate of the factory, become the urgent problem to be solved by the coking enterprises, and the use amount of the primary or secondary demineralized water for the waste heat utilization of the coke oven riser is large, so that the use amount of the demineralized water is reduced while the waste steam is recovered, and the difficulty of solving the problem is increased.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a waste heat recovery and exhaust steam recovery system for a coke oven riser, which can fully recover sensible heat of waste steam of the coke oven riser, utilize condensate water produced by exhaust steam recovery and reduce the consumption of desalted water.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
A waste heat recovery and exhaust steam recovery system of a coke oven riser comprises a steam drum, a periodic blowdown expander, a desalting water tank, a waste steam recovery device and a deaerator; the first outlet of the steam drum is connected with the inlet of the periodic blowdown expander through a pipeline, and the outlet of the periodic blowdown expander is connected with the first inlet of the exhaust steam recovery device through a pipeline; the deaerator outlet is connected with the second inlet of the exhaust steam recovery device through a pipeline; the second outlet of the steam drum is connected with the third inlet of the exhaust steam recovery device through a pipeline; the outlet of the demineralized water tank is connected with the fourth inlet of the exhaust steam recovery device through a pipeline, and the first outlet of the exhaust steam recovery device is connected with the first inlet of the demineralized water tank through a pipeline; and a second outlet of the exhaust steam recovery device is connected with an inlet of the deaerator through a pipeline.
Further, the device also comprises a deoxidizing water supply pump, and the deoxidizing water supply pump is arranged on a pipeline of which the outlet of the desalting water tank is connected with the fourth inlet of the exhaust steam recovery device.
Further, the exhaust steam recovery device is provided with a low-quality heat recovery heat exchanger, low-quality diffused steam of a steam drum, a deaerator and a periodic blowdown expander is subjected to steam-water heat exchange with normal-temperature desalted water at the outlet of a deaeration water supply pump, and the temperature of the normal-temperature desalted water is increased by 10-15 ℃.
Further, the deaerator is an atmospheric deaerator or a low-pressure rotary film deaerator.
Further, still include demineralized water adjusting valve group, demineralized water adjusting valve group installs on the pipeline that exhaust steam recovery unit first export and deoxidizer entry link to each other, and demineralized water adjusting valve group adjusts the flow to control exhaust steam recovery unit's heat exchange volume.
Compared with the prior art, the utility model has the beneficial effects that:
1. The utility model sends the low-quality steam discharged from the steam drum, the deaerator and the periodic blowdown expander into the heat exchanger of the exhaust steam recovery device, and the exhaust steam recovery device exchanges steam and water with the low-quality steam, so that the low-quality steam is condensed into condensed water. The utility model recovers the sensible heat of waste steam of a coke oven riser steam drum, a periodic blowdown expander and a deaerator steam-carrying device, reduces the influence on environmental protection and improves the comprehensive energy utilization rate.
2. The outlet of the exhaust steam recovery device is connected with the inlet of the demineralized water tank through a pipeline, and the condensed water after low-quality steam is condensed enters the demineralized water tank for recycling, so that on one hand, the condensed water is recovered, the usage amount of demineralized water is reduced, on the other hand, the temperature of the demineralized water is further increased, and the usage amount of heating steam of the deaerator is reduced. And the condensate water generated by the recovery of the dead steam is utilized, so that the use of primary or secondary desalted water is reduced, and the economic benefit is improved.
Drawings
FIG. 1 is a schematic structural and process diagram of the present utility model.
In the figure: 1-steam drum 2-periodic blowdown expander 3-desalting water tank 4-deoxidization water supply pump 5-exhaust steam recovery device 6-deoxidizer 7-desalting water regulating valve group
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
[ Example ]
As shown in fig. 1, the waste heat recovery and exhaust steam recovery system for the coke oven riser comprises a steam drum 1, a periodic blowdown expander 2, a demineralized water tank 3, a deoxidization water supply pump 4, a waste steam recovery device 5, a deoxidizer 6 and a demineralized water regulating valve group 7.
The exhaust steam recovery device 5 is provided with a low-quality heat recovery heat exchanger, the low-quality diffused steam of the steam drum 1, the deaerator 6 and the periodic blowdown expander 2 is subjected to steam-water heat exchange with normal-temperature desalted water at the outlet of the deaeration water supply pump 4, and the temperature of the normal-temperature desalted water is increased by 10-15 ℃.
The deaerator 6 is an atmospheric deaerator or a low-pressure rotary film deaerator.
The steam drum 1, the deaerator 6 and the periodic blowdown expander 2 generate diffused steam, the diffused steam is low-quality steam, the steam pressure is 0.6-1.0 MPa, and the steam temperature is 165-185 ℃.
The flow rate can be regulated by the demineralized water regulating valve group 7, so that the heat exchange amount of the exhaust steam recovery device is controlled.
The first outlet of the steam drum 1 is connected with the inlet of the periodic blowdown expander 2 through a pipeline, and the outlet of the periodic blowdown expander 2 is connected with the first inlet of the exhaust steam recovery device 5 through a pipeline.
The outlet of the deaerator 6 is connected with the second inlet of the exhaust steam recovery device 5 through a pipeline.
The second outlet of the steam drum 1 is connected with the third inlet of the exhaust steam recovery device 5 through a pipeline.
The outlet of the desalting water tank 3 is connected with one end of the deoxidizing water supply pump 4 through a pipeline, and the other end of the deoxidizing water supply pump 4 is connected with the fourth inlet of the exhaust steam recovery device 5 through a pipeline.
The first outlet of the exhaust steam recovery device 5 is connected with the first inlet of the demineralized water tank 3 through a pipeline.
The second outlet of the exhaust steam recovery device 5 is connected with the inlet of the deaerator 6 through a pipeline,
The demineralized water regulating valve group 7 is arranged on a pipeline of the second outlet of the exhaust steam recovery device 5 connected with the inlet of the deaerator 6.
The desalted water pipeline is connected with a second inlet of the desalted water tank 3.
The working principle and working process of the utility model are as follows:
1. the external net demineralized water enters the demineralized water tank 3 through a demineralized water pipeline, passes through the deoxidizing water supply pump 4 and enters the water side of the heat exchanger of the exhaust steam recovery device 5.
2. The low-quality steam discharged from the steam drum 1, the deaerator 6 and the periodic blowdown expander 2 enters the steam side of the heat exchanger of the exhaust steam recovery device 5.
3. The desalted water in the exhaust steam recovery device 5 exchanges steam and water with low-quality steam, the low-quality steam is condensed into condensed water, the temperature of the normal-temperature desalted water is increased by 10-15 ℃, and the condensed water is sent to the deaerator 6 through the desalted water regulating valve group 7.
The low-quality steam is diffused from the steam drum 1, the deaerator 6 and the periodic blowdown expander 2, the steam pressure is 0.6-1.0 MPa, and the steam temperature is 165-185 ℃.
4. And the condensed water obtained after the low-quality steam is condensed enters the desalting water tank 3 for recycling, so that on one hand, the condensed water is recovered, the using amount of desalted water is reduced, and on the other hand, the temperature of the desalted water is further increased, and the using amount of heating steam of the deaerator 6 is reduced.
According to the utility model, sensible heat of waste steam of the steam equipment with the coke oven riser steam drum 1, the periodic blowdown expander 2 and the deaerator 6 is recovered, the influence on environmental protection is reduced, and the comprehensive energy utilization rate is improved. And the condensate water generated by the recovery of the dead steam is utilized, so that the use of primary or secondary desalted water is reduced, and the economic benefit is improved.
The foregoing is only a part of the specific embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical solution and the inventive concept thereof within the scope of the present utility model.
Claims (5)
1. A waste heat recovery and exhaust steam recovery system of a coke oven riser is characterized in that,
Comprises a steam drum, a periodic blowdown expander, a desalting water tank, a dead steam recovery device and a deaerator;
The first outlet of the steam drum is connected with the inlet of the periodic blowdown expander through a pipeline, and the outlet of the periodic blowdown expander is connected with the first inlet of the exhaust steam recovery device through a pipeline;
the deaerator outlet is connected with the second inlet of the exhaust steam recovery device through a pipeline;
the second outlet of the steam drum is connected with the third inlet of the exhaust steam recovery device through a pipeline;
the outlet of the demineralized water tank is connected with the fourth inlet of the exhaust steam recovery device through a pipeline, and the first outlet of the exhaust steam recovery device is connected with the first inlet of the demineralized water tank through a pipeline;
and a second outlet of the exhaust steam recovery device is connected with an inlet of the deaerator through a pipeline.
2. A coke oven riser waste heat recovery dead steam recovery system according to claim 1, wherein,
The exhaust steam recovery device is provided with a low-grade heat recovery heat exchanger, low-grade diffused steam of a steam drum, a deaerator and a periodic blowdown expander is subjected to steam and water heat exchange with normal-temperature desalted water at an outlet of the deaeration water tank, and the temperature of the normal-temperature desalted water is increased.
3. A coke oven riser waste heat recovery dead steam recovery system according to claim 1, wherein,
The deaerator is an atmospheric deaerator or a low-pressure rotary film deaerator.
4. A coke oven riser waste heat recovery dead steam recovery system according to claim 1, wherein,
The device also comprises a deoxidizing water supply pump which is arranged on a pipeline connected with the fourth inlet of the dead steam recovery device at the outlet of the desalting water tank.
5. A coke oven riser waste heat recovery dead steam recovery system according to claim 1, wherein,
Still include demineralized water regulating valve group, demineralized water regulating valve group installs on the pipeline that exhaust steam recovery unit second export and deoxidizer entry link to each other, and demineralized water regulating valve group adjusts the flow to control exhaust steam recovery unit's heat exchange volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322658026.2U CN220939851U (en) | 2023-09-28 | 2023-09-28 | Waste heat recovery and exhaust steam recovery system for coke oven riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322658026.2U CN220939851U (en) | 2023-09-28 | 2023-09-28 | Waste heat recovery and exhaust steam recovery system for coke oven riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220939851U true CN220939851U (en) | 2024-05-14 |
Family
ID=90977406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322658026.2U Active CN220939851U (en) | 2023-09-28 | 2023-09-28 | Waste heat recovery and exhaust steam recovery system for coke oven riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220939851U (en) |
-
2023
- 2023-09-28 CN CN202322658026.2U patent/CN220939851U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203298285U (en) | Power station machine and furnace integrating type waste heat utilization system based on air preheated by extraction steam | |
| CN110455088A (en) | A kind of solidifying gas formula generating set residual heat heating device and method of dry coke quenching superhigh temperature super-pressure | |
| CN210217851U (en) | Coal gas waste heat recovery coupling power generation system | |
| CN203203020U (en) | Steam waste heat water recycling device for machining paper | |
| CN201637131U (en) | Solar heat collection and energy storage regenerative heating device for thermal generator set | |
| CN110715286A (en) | Still kettle and boiler heat energy recovery system | |
| CN202647718U (en) | Supercritical clamminess heating machine set heat supply net drainage treating system | |
| CN202166051U (en) | Front closed circulating heat exchange system | |
| CN220939851U (en) | Waste heat recovery and exhaust steam recovery system for coke oven riser | |
| CN112503610A (en) | Novel steam condensate water waste heat recovery system for heating | |
| CN117186903A (en) | Waste heat recovery and exhaust steam recovery system and method for coke oven riser | |
| CN220958438U (en) | System for desulfurization and denitrification exhaust-heat boiler combines tedge superheated steam | |
| CN113983443A (en) | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump | |
| CN102506413A (en) | Desalted water high-pressure oxygen removing system and method capable of utilizing low-temperature heat of catalytic cracking device | |
| CN206469245U (en) | A kind of steam condensate (SC) efficient system for reclaiming | |
| CN221301424U (en) | System for heating hot water is prepared in recovery of coke oven tedge waste heat | |
| CN221197388U (en) | Device for recycling heat by using waste heat of exhaust steam | |
| CN219103728U (en) | Converter flue gas waste heat utilization system | |
| CN206469243U (en) | A kind of steam condensate recovering device | |
| CN214745679U (en) | Dry quenching waste heat recovery system | |
| CN219103729U (en) | Coupling power generation system is retrieved to converter flue gas waste heat high efficiency | |
| CN213395266U (en) | Blowdown and heat supply system of steam generator of nuclear power station | |
| CN117287688A (en) | System and method for combining desulfurization and denitrification waste heat boiler with riser superheated steam | |
| CN213983718U (en) | Novel steam condensate water waste heat recovery system for heating | |
| CN218442237U (en) | Boiler fixed-exhaust steam recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |