CN206538377U - Coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit - Google Patents
Coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit Download PDFInfo
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- CN206538377U CN206538377U CN201720246178.3U CN201720246178U CN206538377U CN 206538377 U CN206538377 U CN 206538377U CN 201720246178 U CN201720246178 U CN 201720246178U CN 206538377 U CN206538377 U CN 206538377U
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- coke oven
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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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Abstract
The utility model discloses a kind of coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit, mainly include tedge heat exchange evaporative subsystem, turbine generator subsystem, the heat transferring medium outlet for rising heat exchange of heat pipe is connected with the heat transferring medium entrance of upcast header, rises the heat transferring medium entrance of heat exchange of heat pipe and the heat transferring medium outlet of downcomer header；The heat transferring medium outlet of upcast header is connected with the heat transferring medium entrance of drum, the heat transferring medium entrance of downcomer header and the heat transferring medium outlet of drum, the working medium exit port of drum is connected with the working medium inlet of steam turbine, and the working medium exit port of steam turbine is connected with user's steam pipe system.The utility model utilizes novel sleeve type tedge heat exchanging evaporator, and the saturated vapor of generation realizes cogeneration of heat and power by back pressure type steam turbine generating set, so as to realize effective recovery and the cascaded utilization of energy of coke oven coke oven uprising tube raw coke oven gas waste heat.
Description
Technical field
The utility model is related to a kind of coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit.
Background technology
Coking industry is important energy production departments, and process of coking produces a large amount of residual heat resources, and high-temperature residual heat is (red
Burnt sensible heat, 950-1050 DEG C) 37% is accounted for, middle temperature waste heat (crude-gas sensible heat, 750-800 DEG C) accounts for 36%, low temperature exhaust heat (flue
Waste gas sensible heat, 150-230 DEG C) 17% is accounted for, remaining 10% is coking furnace shaft radiation loss.Heat is taken out of with regard to coke oven product and
Speech, crude-gas sensible heat occupies second, is worth with high recycling.Current processing of the coking industry to crude-gas sensible heat
Traditional approach be, by spray substantial amounts of 70-75 DEG C cyclic ammonia water reduce raw gas temperature after, into coal gas primary cooler,
20 DEG C or so are further reduced to by recirculated cooling water again, into next step recovery of chemical products technique.Wherein, the waste coal of coke oven coke oven uprising tube
The middle temperature waste heat of gas is not recycled reasonably, cause that the system energy consumption is big, environmental pollution serious, production cost relatively
It is high.For the sensible heat resource of raw coke oven gas, since 1970s, the country starts the exploitation of heat recovery technology and equipment,
So far still in development, not yet form that technology maturation, system be reliable, economically viable scale engineer applied.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of coke oven coke oven uprising tube famine of abundant, high efficiente callback raw coke oven gas waste heat
Coal gas waste heat recovery co-generation unit.
To reach above-mentioned purpose, the utility model coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit, main bag
Tedge heat exchange evaporative subsystem is included, turbine generator subsystem, described tedge heat exchange evaporative subsystem is main by some
Rise the rising pipe evaporator composition of heat exchange of heat pipe composition, the heat transferring medium outlet for rising heat exchange of heat pipe and upcast header
Heat transferring medium entrance connection, it is described rise heat exchange of heat pipe heat transferring medium entrance and downcomer header heat transferring medium outlet connect
It is logical；
The heat transferring medium outlet of the upcast header is connected with the heat transferring medium entrance of drum, the downcomer header
The heat transferring medium outlet of heat transferring medium entrance and drum,
The working medium exit port of the drum is connected with the working medium inlet of steam turbine, the working media of the steam turbine
Outlet is connected with user's steam pipe system；The output shaft of the steam turbine and the input shaft of generator are connected；
Wherein, the rising heat exchange of heat pipe is double pipe heat exchanger, and described steam turbine is back pressure turbine.
Further, the working medium exit port of the drum is connected by bypass duct with user's steam pipe system, institute
State bypass duct in parallel with the steam turbine；
Valve, the bypass are provided with the working medium inlet pipeline and working medium exit port pipeline of the steam turbine
Valve is provided with pipeline.
Further, the medium supplement entrance of the drum is connected with the deoxygenation water tank of oxygen-eliminating device, and the oxygen-eliminating device is removed
Oxygen head is connected with sweet-water tank.
Further, the working medium exit port of the steam turbine is also connected with the deoxygenation head of the oxygen-eliminating device.
Further, steam-water separator, the carbonated drink point are provided with the pipeline for connecting the drum and steam turbine
Bottom from device is connected with blowdown system,
The sewage draining exit of the drum is connected with the blowdown system.
Further, it is coated with anti-coking coating on the inwall for rising heat exchange of heat pipe.
The utility model uses double pipe heat exchanger, can bear higher pressure, therefore, it is possible to by the steam of generation
Pressure brings up to the pressure for steam turbine power generation, so as to produce the saturated vapor (more than 1.27MPa) of higher pressure, adopts
Some rising heats exchange of heat pipe are combined with upcast header and downcomer header, carried out by back pressure type steam turbine generating set
Generate electricity, the steam of Turbo-generator Set discharge is being delivered to user's steam pipe system, realizes cogeneration of heat and power.In Jiao of the present utility model
In stove ascending tube crude-gas waste heat recovery co-generation unit, first done using the steam of high-quality in Turbo-generator Set
Work(, the heating demand or other demands of user is then met using low-quality steam, the step of raw coke oven gas waste heat is realized again
Recycle.
Brief description of the drawings
Fig. 1 is the coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit principle knot of embodiment 1 of the present utility model
Composition.
In figure, 1- rises heat exchange of heat pipe, 2- downcomer headers, 3- upcast headers, 4- water circulating pumps, 5- drums, 6- tri-
Port valve, 7- steam-water separators, 8- steam turbines, 9- generators, 10- thermal deaerators, 11- feed pumps, 12- desalination water pumps, 13- is removed
Brine tank, 14- blowdown systems, V1~V15 is all kinds of valves.
Embodiment
The utility model is further described with reference to Figure of description.
As shown in Figure 1, the present embodiment provides a kind of coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit, including
Tedge heat exchange evaporative subsystem, turbine generator subsystem, make-up water deoxygenation subsystem and blowdown subsystem.Described tedge
Main rising pipe evaporator, downcomer header 2, the tedge being made up of some rising heats exchange of heat pipe 1 of heat exchange evaporative subsystem
Header 3, water circulating pump 4 and drum 5 are constituted, and are risen heat exchange of heat pipe and are used double pipe heat exchanger, drum 5 by decline pipeline and
Valve V1 is connected with the entrance of water circulating pump 4, and water circulating pump 4 is exported by declining pipeline and valve V2 and the entrance of downcomer header 2
It is connected, the outlet conduit of downcomer header 2 passes through valve V3, V4 and respective independent decline pipeline and rising heat exchange of heat pipe 1 respectively
Entrance be connected；The outlet for rising heat exchange of heat pipe 1 is connected by increase in pipeline and valve V5, V6 and the entrance of upcast header 3 respectively
Connect, the outlet of upcast header 3 is connected by increase in pipeline and valve V7 with the entrance of drum 5；Described turbine generator subsystem by
Steam turbine 8, generator 9, steam-water separator 7 are constituted, and steam turbine 8 is connected by shaft coupling with generator 9, the saturated vapor of drum 5
Outlet is connected by jet chimney with the entrance of triple valve 6, and the one outlet of triple valve 6 is connected with the steam inlet of steam-water separator 7,
The steam (vapor) outlet of steam-water separator 7 is connected by pipeline and valve V8 with the main inlet throttle-stop valve of steam turbine 8, and the steam (vapor) outlet of steam turbine 8 passes through pipe
Road and valve V11 are connected with user's steam pipe system entrance, the bypass of the saturated vapor of drum 5 by another outlet of triple valve 6 with
Valve V10 is connected with the outlet of steam turbine 8；Described make-up water deoxygenation subsystem is by thermal deaerator 10, feed pump 11, desalination
Water tank 13 and desalination water pump 12 are constituted, and the steam (vapor) outlet of steam turbine 8 is steamed by pipeline and valve V12 with the deoxygenation of thermal deaerator 10 head
Vapour entrance is connected；The outlet of sweet-water tank 13 is connected by pipeline with the entrance of desalination water pump 12, and the outlet of desalination water pump 12 passes through pipeline
And valve V15 is connected with the deoxygenation of thermal deaerator 10 head supply water inlet, the tank outlet of thermal deaerator 10 and feed pump 11
Entrance is connected, and the outlet of feed pump 11 is connected by valve V13 with the entrance of drum 5；Described blowdown subsystem is by blowdown dilatancy
Device 14 is constituted, and the waste of drum 5 is connected by pipeline and valve V14 with the entrance of blowdown system 14, and steam-water separator 7 is hydrophobic
Outlet is connected by valve V9 with the entrance of blowdown system 14, and the outlet of blowdown system 14 is connected with hydrophobic outer row mouthful.
Concrete technology flow process is that supply demineralized water is sent into after the deoxygenation of oxygen-eliminating device 10 by desalination water pump 12, then by feed pump 11
Send into drum 5；Feedwater after being preheated in drum 5 delivers to downcomer header 2 by down-comer and water circulating pump 4, then passes through
Downcomer header 2 is distributed in the external jacket into each raw coke oven gas tedge heat exchanging evaporator unit, with heat exchanging evaporator inner sleeve
After interior raw coke oven gas countercurrent flow, upcast header 3 is imported, then sent into drum 5 by tedge；The saturation that drum 5 is produced is steamed
Vapour, is generated electricity by delivering to the 9 groups of actings of back pressure type steam turbine generator after steam-water separator 7；The Back-pressure steam after acting is completed from vapour
The outlet of turbine 8 is divided into two-way, and most of steam after pressure regulation by delivering to user's steam pipe system, and small part steam is through pressure in addition
Enter thermal deaerator 10 after adjustment, so then form the thermodynamic cycle process of raw coke oven gas waste heat recovery cogeneration of heat and power.Simultaneously
Steam by-pass is additionally provided between the outlet of the saturated vapor of drum 5 and the outlet of the back pressure of steam turbine 8,9 groups are exited heat in steam turbine generator
When power is circulated, do not influence upstream coking production and downstreamization to produce production process, realize the stabilization of system with reliably.
The coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit that the present embodiment is proposed, utilizes the sleeve pipe of new design
Formula tedge heat exchanging evaporator, the saturated vapor of generation after being generated electricity by the 9 groups of actings of back pressure type steam turbine generator, enters access customer
Steam pipe system, realizes effective recovery and the cascaded utilization of energy of coke oven coke oven uprising tube raw coke oven gas waste heat.Exchanged heat by coke oven coke oven uprising tube
Device 1 can make raw gas temperature be reduced to about 580 DEG C or so from 700 DEG C and enter next step gas purification process, reduce for famine
The ammonia volume of coal gas cooling, reduces the secondary pollution discharge in coal oven dithio-gas purification technical process, is coal chemical enterprise wound
Good business efficiency and environmental benefit is made.
The utility model uses double pipe heat exchanger, can bear higher pressure, therefore, it is possible to by the steam of generation
Pressure brings up to the pressure for steam turbine power generation, so as to produce the saturated vapor (more than 1.27MPa) of higher pressure, adopts
Some rising heats exchange of heat pipe are combined with upcast header and downcomer header, carried out by back pressure type steam turbine generating set
Generate electricity, the steam of Steam Turbine discharge is being delivered to user's steam pipe system, realizes cogeneration of heat and power.On coke oven of the present utility model
In riser raw coke oven gas waste heat recovery co-generation unit, first done work using the steam of high-quality in Turbo-generator Set,
Then the heating demand or other demands of user is met using low-quality steam again, the step for realizing raw coke oven gas waste heat is reclaimed
Utilize.
More than, preferred embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints
What those familiar with the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
The protection domain defined is defined.
Claims (6)
1. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit, it is characterised in that：Mainly include tedge heat exchange
Evaporative subsystem, turbine generator subsystem, described tedge heat exchange evaporative subsystem is main by some rising heats exchange of heat pipe
The rising pipe evaporator composition of composition, the heat transferring medium outlet for rising heat exchange of heat pipe and the heat transferring medium of upcast header enter
Mouth connection, the heat transferring medium outlet of the heat transferring medium entrance and downcomer header for rising heat exchange of heat pipe；
The heat transferring medium outlet of the upcast header is connected with the heat transferring medium entrance of drum, the heat exchange of the downcomer header
Medium inlet and the heat transferring medium outlet of drum,
The working medium exit port of the drum is connected with the working medium inlet of steam turbine, the working medium exit port of the steam turbine
Connected with user's steam pipe system；The output shaft of the steam turbine and the input shaft of generator are connected；
Wherein, the rising heat exchange of heat pipe is double pipe heat exchanger, and described steam turbine is back pressure turbine.
2. coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit as claimed in claim 1, it is characterised in that：The drum
Working medium exit port connected by bypass duct with user's steam pipe system, the bypass duct and the steam turbine and
Connection；
Valve, the bypass duct are provided with the working medium inlet pipeline and working medium exit port pipeline of the steam turbine
On be provided with valve.
3. coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit as claimed in claim 1, it is characterised in that：The drum
Medium supplement entrance connect with the deoxygenation water tank of oxygen-eliminating device, the deoxygenation of the oxygen-eliminating device is connected with sweet-water tank.
4. coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit as claimed in claim 3, it is characterised in that：The steamer
The working medium exit port of machine is also connected with the deoxygenation head of the oxygen-eliminating device.
5. coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit as claimed in claim 1, it is characterised in that：For connecting
Steam-water separator is provided with the pipeline of the drum and steam turbine, bottom and the blowdown system of the steam-water separator connect
It is logical,
The sewage draining exit of the drum is connected with the blowdown system.
6. coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit as claimed in claim 1, it is characterised in that：It is described to rise
Anti-coking coating is coated with the inwall of heat exchange of heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246178.3U CN206538377U (en) | 2017-03-14 | 2017-03-14 | Coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246178.3U CN206538377U (en) | 2017-03-14 | 2017-03-14 | Coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit |
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| Publication Number | Publication Date |
|---|---|
| CN206538377U true CN206538377U (en) | 2017-10-03 |
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| CN201720246178.3U Active CN206538377U (en) | 2017-03-14 | 2017-03-14 | Coke oven coke oven uprising tube raw coke oven gas waste heat recovery co-generation unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965748A (en) * | 2017-12-22 | 2018-04-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of coal oven dithio-gas heat recovery system free of discontinuities |
| CN109464896A (en) * | 2018-10-25 | 2019-03-15 | 南京华电节能环保设备有限公司 | A kind of coke oven sulphur removal waste-heat recovery device and method |
| CN113217896A (en) * | 2021-05-08 | 2021-08-06 | 江苏太湖锅炉股份有限公司 | Boiler plant of natural circulation |
-
2017
- 2017-03-14 CN CN201720246178.3U patent/CN206538377U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965748A (en) * | 2017-12-22 | 2018-04-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of coal oven dithio-gas heat recovery system free of discontinuities |
| CN109464896A (en) * | 2018-10-25 | 2019-03-15 | 南京华电节能环保设备有限公司 | A kind of coke oven sulphur removal waste-heat recovery device and method |
| CN109464896B (en) * | 2018-10-25 | 2023-05-02 | 南京华电节能环保股份有限公司 | Coke oven sulfur removal waste heat recovery device and method |
| CN113217896A (en) * | 2021-05-08 | 2021-08-06 | 江苏太湖锅炉股份有限公司 | Boiler plant of natural circulation |
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