CN104327864B - A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof - Google Patents
A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof Download PDFInfo
- Publication number
- CN104327864B CN104327864B CN201410647688.2A CN201410647688A CN104327864B CN 104327864 B CN104327864 B CN 104327864B CN 201410647688 A CN201410647688 A CN 201410647688A CN 104327864 B CN104327864 B CN 104327864B
- Authority
- CN
- China
- Prior art keywords
- water
- dry
- quenching
- heat exchanger
- pipeline
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The present invention relates to a kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof, including dry coke quenching feed water preheater, water water-to-water heat exchanger and regulation valve, wherein, on the circulation air flue that dry coke quenching feed water preheater is arranged between dry quenching circulating fan and coke dry quenching furnace, dry quenching system recyclegas is cooled down by it by coke dry quenching boiler demineralized water；Water water-to-water heat exchanger is respectively connecting to dry coke quenching feed water preheater, demineralized water pipeline and boiler feedwater pipeline；Water water-to-water heat exchanger and regulation valve cooperation realize dry coke quenching feed water preheater import demineralized water temperature and reach preset temperature.Control, 60 DEG C of upper deviations, to slow down dry coke quenching feed water preheater dew point corrosion by dry coke quenching feed water preheater inflow temperature by water water-to-water heat exchanger.By governor valve control T2 temperature≤95 DEG C, it is to avoid demineralized water vaporization in heat exchanger water journey and subsequent pipeline.
Description
Technical field
The present invention relates to coking and chemical industry, be specifically related to Dry Quenching Technology field.
Background technology
Coke dry quenching furnace is dry coke quenching main equipment, loads red-hot coke, cooled down by circulated inert gas coke in it.Existing
Coke dry quenching furnace entrance recyclegas cooling technique is: dispose heat exchange of heat pipe before coke dry quenching furnace inlet duct, owing to heat pipe is sleeve pipe,
Inner tube is boiler demineralized water, and chuck fills heat-exchange working medium, once outer tube dew point corrosion, reveals and is only a small amount of heat-exchange working medium, to dry
Quenching harm to the system is less, and safety is preferable, but the passage that heat-exchange working medium is in time is progressively decaying, and causes heat exchange efficiency to become
Difference, causes dry coke quenching production capacity to decline.How not design a kind of coke dry quenching furnace entrance recyclegas cooling technique, it is ensured that efficiently and not
It is the starting point of this technology that the coil heat exchanger dew point corrosion speed decayed in time slows down.
In sum, prior art exists following technical problem: coil heat exchanger heat exchange efficiency will not push away in time
Move and gradually decay, but there will be dew point corrosion phenomenon for dry coke quenching feed-water preheating system.
Summary of the invention
It is an object of the invention to solve coil heat exchanger for the dew point corrosion problem of dry quenching system, changed by technology
Enter, exploitation one can preventing corrosion of dew points, can guarantee that again heat exchange efficiency will not passage in time and the one that gradually decays is done
Put out stove entrance recyclegas cooling technique.Concrete technical scheme is as follows:
A kind of coke dry quenching furnace entrance recyclegas cooling system, including dry coke quenching feed water preheater, water water-to-water heat exchanger and regulation
Valve, wherein, on the circulation air flue that dry coke quenching feed water preheater is arranged between dry quenching circulating fan and coke dry quenching furnace, it is by dry
Dry quenching system recyclegas is cooled down by quenching boiler demineralized water；Water water-to-water heat exchanger is respectively connecting to dry coke quenching feed-water preheating
Device, demineralized water pipeline and boiler feedwater pipeline；Water water-to-water heat exchanger and regulation valve cooperation realize dry coke quenching feed water preheater import
Demineralized water temperature reaches preset temperature.
One end threeway of described regulation valve is connected to burnt feed water preheater and water water-to-water heat exchanger, the other end be connected to boiler to
Waterpipe
Between quenching feed water preheater and demineralized water pipeline through by water water-to-water heat exchanger；Quenching feed water preheater and boiler are given
Between waterpipe through by water water-to-water heat exchanger.
Described demineralized water pipeline includes desalted water station, water tank and desalination feed pump, and water water-to-water heat exchanger is connected by pipeline
To desalination feed pump.
Described boiler feedwater pipeline is provided with boiler feed pump, and water water-to-water heat exchanger is connected to boiler feed pump by pipeline,
Boiler feed pump is connected to coke dry quenching boiler by pipeline.
Pipeline between water water-to-water heat exchanger and boiler feed pump is provided with oxygen-eliminating device.
Arranging bypass conduit, connect the two ends pipeline of described regulation valve, described bypass line is provided with the first bypass valve；
Bypass conduit is set, connects described water water-to-water heat exchanger connection demineralized water pipeline and the two ends pipeline of dry coke quenching feed water preheater,
Described bypass line is provided with the second bypass valve；Bypass conduit is set, connects described water water-to-water heat exchanger connection boiler feed pipe
The two ends pipeline of road and dry coke quenching feed water preheater, described bypass line is provided with the 3rd bypass valve.
It is respectively equipped with on the two ends pipeline of described water water-to-water heat exchanger connection boiler feedwater pipeline and dry coke quenching feed water preheater
First controls valve and second controls valve, described water water-to-water heat exchanger connection demineralized water pipeline and the two of dry coke quenching feed water preheater
It is respectively equipped with the 3rd control valve and the 4th on end pipeline and controls valve, the connecting line at the two ends of regulation valve is respectively equipped with the
Five control valve and the 6th controls valve.
The cooling means of above-mentioned coke dry quenching furnace entrance recyclegas cooling system, comprises the steps:
(1) first bypass valve, the second bypass valve, the 3rd bypass valve are closed, and other valves are opened；
(2) the boiler demineralized water from desalination feed pump enters water water-to-water heat exchanger tube side by controlling valve；
(3) boiler demineralized water enters and controls valve, dry coke quenching feed water preheater tube side and dry coke quenching recyclegas heat exchange；
(4) the boiler demineralized water after heat exchange completes dry coke quenching feedwater by controlling the shell side of valve entrance water water-to-water heat exchanger；
(5) dry coke quenching feed water preheater inflow temperature rises to >=60 DEG C.
When test point test temperature is not in process parameters range, by regulation valve, water water-to-water heat exchanger tube side water outlet is pressed
Setting program is blended into water water-to-water heat exchanger shell side outlet conduit, it is achieved shell side water outlet≤95 DEG C of water water-to-water heat exchanger, it is to avoid water journey
Vaporization.
Compared with currently available technology, the present invention is experimentally applied to horse steel 5# dry quenching system in October, 2014.Logical
Cross water water-to-water heat exchanger and dry coke quenching feed water preheater inflow temperature is controlled 60 DEG C of upper deviations, slow down dry coke quenching feed water preheater dew
Spot corrosion.By governor valve control T2 temperature≤95 DEG C, it is to avoid demineralized water vaporization in heat exchanger water journey and subsequent pipeline.
Accompanying drawing explanation
Fig. 1 is that coke dry quenching furnace entrance recyclegas cools down process principle figure
In figure:
1 dry coke quenching feed water preheater；2 water water-to-water heat exchangers；3 regulation valves；4 bypass valves；5 bypass valves；6 is other
Road valve；7 control valve；8--controls valve；9--controls valve；10--controls valve；11--controls valve；12--control valve
Door；
Detailed description of the invention
Describing the present invention below according to accompanying drawing, it is that the one in numerous embodiments of the present invention is the most real
Execute example.
System composing and working theory
In conjunction with accompanying drawing: this process equipment has dry coke quenching feed water preheater 1, water water-to-water heat exchanger 2, regulation valve 3, bypass valve 4, side
Road valve 5, bypass valve 6, control valve 7, control valve 8, control valve 9, control valve 10, control valve 11, control valve 12,
And corresponding pipeline composition.
In conjunction with accompanying drawing: dry quenching system recyclegas is entered by dry coke quenching feed water preheater 1 by coke dry quenching boiler demineralized water
Row cooling, reduces coke dry quenching furnace entrance recyclegas about 130 DEG C.In order to prevent the dew point corrosion of dry coke quenching feed water preheater 1 tube side,
This technique is provided with water water-to-water heat exchanger 2 and regulation valve 3, realizes dry coke quenching by the cooperation of water water-to-water heat exchanger 2 and regulation valve 3 and feeds water
Preheater 1 import demineralized water temperature >=60 DEG C, slow down the dew point corrosion of dry coke quenching feed water preheater 1 tube side.
Normal operating technique: during normal operating, bypass valve 4, bypass valve 5, bypass valve 6 close, and other valves are opened, this shape
State, the boiler demineralized water from desalination feed pump enters water water-to-water heat exchanger 2 tube side by controlling valve 8, subsequently enters control valve
Door 10, dry coke quenching feed water preheater 1 tube side and dry coke quenching recyclegas heat exchange.Boiler demineralized water after heat exchange is by controlling valve
9 shell sides entering water water-to-water heat exchanger 2 complete dry coke quenching feed water preheater 1 inflow temperature and rise to >=60 DEG C.(dry coke quenching feedwater is pre-
Dew point corrosion is slowed down in hot device 1 inflow temperature >=60 DEG C)
Regulation technological operation: once T2 is not in process parameters range, is gone out water water-to-water heat exchanger 2 tube side by regulation valve 3
Water is blended into water water-to-water heat exchanger 2 shell side outlet conduit by setup program, it is achieved shell side water outlet≤95 DEG C of water water-to-water heat exchanger 2, keeps away
Exempt from the vaporization of water journey.
Overhaul of the equipments operates:
◇ water water-to-water heat exchanger 2 is changed online: open bypass valve 5 and bypass valve 6, is then turned off controlling valve 7, controlling valve
8, controlling valve 9, control valve 10, this state boiler demineralized water, from bypassing into and getting rid of, is treated that equipment replacement completes, is reversely grasped
Make to return normal production.
◇ regulation valve 3 is changed online: closing control valve 11 and control valve 12, is manually operated control valve simultaneously
4 complete to regulate operating procedure, treat that equipment replacement completes, and reverse operating returns normal production.
4.2 technical characteristic
Dry coke quenching feed water preheater 1 inflow temperature is risen to >=60 DEG C by water water-to-water heat exchanger 2 by ◇, slow down dry coke quenching to
Water preheater dew point corrosion.
◇ controls T2 temperature≤95 DEG C by regulation valve 3, it is to avoid demineralized water vaporization in heat exchanger water journey and subsequent pipeline.
◇ passes through bypass valve 5 and bypass valve 6, and controls valve 7, control valve 8, control valve 9, controls valve 10
Switching, it is achieved the on-bne repair of water water-to-water heat exchanger 2 or replacing.
◇ is manually regulated by bypass valve 4, and controls valve 11 and control the switching of valve 12, it is achieved regulation valve 3
On-bne repair or replacing.
Dry coke quenching feed water preheater 1 is arranged between dry quenching circulating fan and coke dry quenching furnace on circulation air flue, water water heat exchange
Device 2, regulation valve 3, bypass valve 4, bypass valve 5, bypass valve 6, control valve 7, control valve 8, control valve 9, control valve 10,
Control valve 11, control valve 12 etc. by corresponding pipeline and dry coke quenching feed water preheater 1 and the desalination water pipe of original system
Road, boiler feedwater pipeline are through.Regulation valve 3 is according to T2 measuring point temperature automatic adjustment.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed method design and the various improvement that carry out of technical scheme of the present invention, or the most improved direct application
In other occasion, all within protection scope of the present invention.
Claims (10)
1. a coke dry quenching furnace entrance recyclegas cooling system, it is characterised in that include dry coke quenching feed water preheater, water water heat exchange
Device and regulation valve, wherein,
On the circulation air flue that dry coke quenching feed water preheater is arranged between dry quenching circulating fan and coke dry quenching furnace, it passes through dry coke quenching
Dry quenching system recyclegas is cooled down by boiler demineralized water；
Water water-to-water heat exchanger is respectively connecting to dry coke quenching feed water preheater, demineralized water pipeline and boiler feedwater pipeline；
Water water-to-water heat exchanger and regulation valve cooperation realize dry coke quenching feed water preheater import demineralized water temperature and reach preset temperature.
2. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 1, it is characterised in that one end of described regulation valve
Threeway is connected to burnt feed water preheater and water water-to-water heat exchanger, and the other end is connected to boiler feedwater pipeline.
3. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 1 or 2, it is characterised in that quenching feed-water preheating
Between device and demineralized water pipeline through by water water-to-water heat exchanger；By water water heat exchange between quenching feed water preheater and boiler feedwater pipeline
Device is through.
4. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 1 or 2, it is characterised in that described desalination water pipe
Road includes desalted water station, water tank and desalination feed pump, and water water-to-water heat exchanger is connected to desalination feed pump by pipeline.
5. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 1 or 2, it is characterised in that described boiler feedwater
Pipeline is provided with boiler feed pump, and water water-to-water heat exchanger is connected to boiler feed pump by pipeline, and boiler feed pump is by pipeline even
It is connected to coke dry quenching boiler.
6. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 5, it is characterised in that water water-to-water heat exchanger and boiler
Pipeline between feed pump is provided with oxygen-eliminating device.
7. the coke dry quenching furnace entrance recyclegas cooling system as described in claim 1 or 2 a, it is characterised in that bypass is set
Pipeline, connects the two ends pipeline of described regulation valve, and described bypass line is provided with the first bypass valve；Bypass conduit is set, even
Connecing described water water-to-water heat exchanger connection demineralized water pipeline and the two ends pipeline of dry coke quenching feed water preheater, described bypass line is provided with
Second bypass valve；Bypass conduit is set, connects described water water-to-water heat exchanger connection boiler feedwater pipeline and dry coke quenching feed-water preheating
The two ends pipeline of device, described bypass line is provided with the 3rd bypass valve.
8. coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 7, it is characterised in that described water water-to-water heat exchanger is even
It is respectively equipped with the first control valve and the second control valve on the two ends pipeline of logical boiler feedwater pipeline and dry coke quenching feed water preheater
Door, the two ends pipeline of described water water-to-water heat exchanger connection demineralized water pipeline and dry coke quenching feed water preheater is respectively equipped with the 3rd control
Valve and the 4th controls valve, and the connecting line at the two ends of regulation valve is respectively equipped with the 5th control valve and the 6th control valve
Door.
9. the cooling means of coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 8, it is characterised in that include as follows
Step:
(1) first bypass valve, the second bypass valve, the 3rd bypass valve are closed, and other valves are opened；
(2) the boiler demineralized water from desalination feed pump enters water water-to-water heat exchanger tube side by controlling valve；
(3) boiler demineralized water enters and controls valve, dry coke quenching feed water preheater tube side and dry coke quenching recyclegas heat exchange；
(4) the boiler demineralized water after heat exchange completes dry coke quenching feedwater by controlling the shell side of valve entrance water water-to-water heat exchanger；
(5) dry coke quenching feed water preheater inflow temperature rises to >=60 DEG C.
10. the cooling means of coke dry quenching furnace entrance recyclegas cooling system as claimed in claim 9, it is characterised in that work as test
When point test temperature is not in process parameters range, by regulation valve, water water-to-water heat exchanger tube side water outlet is blended into by setup program
Water water-to-water heat exchanger shell side outlet conduit, it is achieved shell side water outlet≤95 DEG C of water water-to-water heat exchanger, it is to avoid water journey vaporizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647688.2A CN104327864B (en) | 2014-11-15 | 2014-11-15 | A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647688.2A CN104327864B (en) | 2014-11-15 | 2014-11-15 | A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104327864A CN104327864A (en) | 2015-02-04 |
| CN104327864B true CN104327864B (en) | 2016-08-31 |
Family
ID=52402678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647688.2A Active CN104327864B (en) | 2014-11-15 | 2014-11-15 | A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104327864B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867549B (en) * | 2017-02-24 | 2022-10-18 | 中冶焦耐(大连)工程技术有限公司 | Method for realizing maintenance of dry quenching boiler without stopping production |
| CN115216316A (en) * | 2022-07-18 | 2022-10-21 | 马鞍山钢铁股份有限公司 | Prevent putting out stove feedwater preheater dew point corrosion temperature regulation and control system futilely |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199070B (en) * | 2011-04-06 | 2013-06-12 | 上海同特化工科技有限公司 | Tubular furnace method pressure-reduced debenzolization and distillation process |
| CN102408298B (en) * | 2011-09-21 | 2014-03-19 | 宝钢工程技术集团有限公司 | Method of distilling crude benzene by decompression method and device thereof |
-
2014
- 2014-11-15 CN CN201410647688.2A patent/CN104327864B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104327864A (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102009009407A1 (en) | Method for operating a heat treatment plant for a heat treatment material introduced in the plant, comprises heating the heat treatment material in the plant and cooling by treatment temperature in upper temperature range in the plant | |
| CN104327864B (en) | A kind of coke dry quenching furnace entrance recyclegas cooling system and cooling means thereof | |
| CN108534125A (en) | A kind of width load high pressure steam-supplying system | |
| US8602316B2 (en) | Increased efficiency heating system method and apparatus for concrete production | |
| CN103953913A (en) | Heat-exchange adjustable economizer system for whole-process operation of denitration equipment | |
| CN101261008A (en) | Liquid phase intermediate medium heat exchanging type heat exchanger | |
| CN104964264B (en) | Combined type automatic circulating system of heat recovery boiler | |
| KR100838224B1 (en) | Apparatus for generating hot water reusing the exhaust gas heat | |
| CN102012165B (en) | Unpowered self-circulating water-cooling device for blast furnace | |
| CN102705864B (en) | Method and device for utilizing residual heat of smoke from boiler of fossil power plant | |
| EP2655995B1 (en) | Method for operating a furnace in a system for processing metal | |
| DE202015002687U1 (en) | Arrangement for heat recovery from exhaust gases | |
| DE102008016128A1 (en) | Geothermal energy utilization method for e.g. heating of buildings, involves guiding medium coming from energy probe over heat exchanger, increasing temperature of medium, and supplying medium to heat pump with energy potential | |
| CN204730465U (en) | A kind of hot-water boiler anticorrosion adjusting device | |
| CN203810375U (en) | Efficient zero-dew point corrosion coal economizer | |
| CN103937918B (en) | A kind of system and method for blast furnace slag quenching water preboiler water | |
| CN210127253U (en) | Load-adjustable heating medium type double-preheating heat exchanger for blast furnace hot blast stove | |
| CN205718609U (en) | A kind of heat-exchange device | |
| US20160216003A1 (en) | Increased Efficiency Heating System Method and Apparatus for Concrete Production | |
| CN105841176B (en) | The desulphurization denitration clean emission device of low temperature waste gas | |
| EP1508751A1 (en) | Method and device for adapting the supply temperature of a heat generator to the respective heat circuit load of a downstream heating system | |
| WO2015036109A1 (en) | Method and device for wet quenching of hot coke | |
| CN204901810U (en) | Energy -conserving boiler system | |
| KR101436600B1 (en) | Steam generator and generating method thereof | |
| CN104649559A (en) | Low-temperature belt-type drying apparatus utilizing residual heat from flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |