CN108105753A - A kind of dry cooling oxygen remover dead steam recovery system - Google Patents
A kind of dry cooling oxygen remover dead steam recovery system Download PDFInfo
- Publication number
- CN108105753A CN108105753A CN201810104516.9A CN201810104516A CN108105753A CN 108105753 A CN108105753 A CN 108105753A CN 201810104516 A CN201810104516 A CN 201810104516A CN 108105753 A CN108105753 A CN 108105753A
- Authority
- CN
- China
- Prior art keywords
- water
- steam
- exhaust
- oxygen
- heat exchanger
- 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.)
- Pending
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000001301 oxygen Substances 0.000 title claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000009792 diffusion process Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000010791 quenching Methods 0.000 abstract description 8
- 230000000171 quenching effect Effects 0.000 abstract description 8
- 239000000571 coke Substances 0.000 abstract description 7
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 3
- 238000006392 deoxygenation reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/003—Feed-water heater systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention proposes a kind of dry cooling oxygen remover dead steam recovery system, including oxygen-eliminating device, exhaust steam recoverer, sweet-water tank and feed water preheater;The exhaust steam recoverer includes shell, forms reclaiming chamber in shell, reclaiming chamber bottom is equipped with steam diffuser, and reclaiming chamber top is equipped with heat exchanger, and condensed water is expelled to sweet-water tank;The sweet-water tank is connected to heat exchanger, and heat exchanger water outlet is connected to feed water preheater water inlet through pipeline, and feed water preheater water outlet is connected to oxygen-eliminating device water inlet through pipeline.The present invention uses the exhaust steam recoverer of designed, designed, by the heat entrained by steam exhaust for heating demineralized water, is collected simultaneously condensation water recovery and use, improves energy utilization rate.Steam exhaust comes into full contact with after steam diffuser diffusion uniformly with the coil pipe of heat exchanger, and rate of heat exchange is high and does not increase oxygen content.The system can be transformed using existing dry coke quenching deaerating plant, stable, improve heat utilization efficiency, energy-saving and emission-reduction.
Description
Technical field
The invention belongs to coking Dry Quenching Technology fields, and in particular to a kind of dry cooling oxygen remover dead steam recovery system.
Background technology
In coking dry coke quenching production process, to ensure the feedwater quality of coke dry quenching boiler, pipeline and generator tube are avoided
Generation oxygen corrosion to boiler feedwater, it is necessary to carry out deoxygenation processing.Using thermal de-aeration method as main means in dry coke quenching technique, simultaneously
It is aided with chemical deoxidization, i.e., heats feedwater to the saturation temperature under relevant pressure with steam, the water vapor pressure on carbonated drink interface
It is identical with ambient pressure, other gases(Including oxygen)Partial pressure is zero, that is, the gas being dissolved in the water cannot be dissolved in
Water and be removed, while add in the oxygen scavengers such as hydrazine chemical combination feedwater in residual dissolved oxygen.At present to dry coke quenching deoxygenation in industry
Steam exhaust afterwards mostly directly carries out outer row's processing.It is arranged outside dry cooling oxygen remover steam exhaust, a large amount of steam heats and condensed water can be caused
Waste, and heat is caused to pollute.
The content of the invention
The technical issues of present invention is for oxygen-eliminating device steam exhaust discharge waste steam and thermal energy proposes a kind of rational in infrastructure, fortune
Row is stablized, and effective recycling oxygen-eliminating device steam exhaust heat and can recycle the dry cooling oxygen remover dead steam recovery system of condensed water.
In order to achieve the above object, the technical solution adopted by the present invention is:
A kind of dry cooling oxygen remover dead steam recovery system, including oxygen-eliminating device, exhaust steam recoverer, sweet-water tank and feed water preheater;
The exhaust steam recoverer includes shell, forms reclaiming chamber in shell, reclaiming chamber bottom is equipped with steam diffuser, steam diffuser
Entrance is connected to oxygen-eliminating device exhaust outlet, and reclaiming chamber top is equipped with heat exchanger, and housing top end is equipped with steam exhaust diffusion mouth, shell
Bottom is equipped with condensed water discharge outlet, and the condensed water discharge pipe of condensed water discharge outlet is connected to sweet-water tank;The sweet-water tank
Heat exchanger water inlet is connected to through water pump and pipeline, heat exchanger water outlet is connected to feed water preheater water inlet through pipeline,
Feed water preheater water outlet is connected to oxygen-eliminating device water inlet through pipeline.
Preferably, the liquid level gauge of detection condensate water level is also equipped on the shell, on the condensed water discharge pipe
Drain solenoid valve is installed, liquid level gauge output terminal is electrically connected with single-chip microcomputer input, single-chip microcomputer output and drain solenoid valve electricity
Connection.
Preferably, maintenance branch and service valve are also associated between the water pump and feed water preheater water inlet.
Preferably, the steam diffuser is axially perpendicular to the bottom wall of shell.
Preferably, the steam diffuser upper end is infundibulate.
Compared with prior art, the advantages and positive effects of the present invention are:
This dry cooling oxygen remover dead steam recovery system can be transformed using existing dry coke quenching deaerating plant, and transformation is convenient, fortune
Row is stablized.The system uses the exhaust steam recoverer of designed, designed, by the heat entrained by steam exhaust for heating demineralized water, receives simultaneously
Collect condensation water recovery and use, improve energy utilization rate.Steam exhaust is filled after steam diffuser diffusion uniformly with the coil pipe of heat exchanger
Tap is touched, and rate of heat exchange is high, and demineralized water is located in coil pipe not to be contacted directly with steam exhaust, will not be dissolved the oxygen in steam exhaust, not increased
Add oxygen content.Demineralized water after feed water preheater heats again into oxygen-eliminating device carry out deoxygenation, demineralized water after heating twice its
Temperature improves, and oxygen-eliminating device heating time shortens, and institute's the mount of using heat is reduced.
Description of the drawings
Fig. 1 is the structure diagram of dead steam recovery system of the present invention;
In above each figure:1st, oxygen-eliminating device;11st, water tank;12nd, heater;13rd, filler;14th, exhaust outlet;15th, steam exhaust is recycled
Pipe;2nd, exhaust steam recoverer;21st, steam diffuser;22nd, steam exhaust diffusion mouth;23rd, heat exchanger;231st, heat exchanger water inlet pipe;
232nd, deaerated feedwater pumps;24th, desalination waterpipe;25th, branch is overhauled;26th, service valve;27th, condensed water discharge pipe;28th, draining electricity
Magnet valve;29th, liquid level gauge;3rd, sweet-water tank;4th, feed water preheater;41st, feed water preheater water inlet;42nd, feed water preheater water outlet
Mouthful.
Specific embodiment
In order to be better understood from the present invention, illustrate with reference to the accompanying drawings and examples.
Embodiment:As shown in Figure 1, a kind of dry cooling oxygen remover dead steam recovery system, including oxygen-eliminating device 1, exhaust steam recoverer
2nd, sweet-water tank 3 and feed water preheater 4.
The oxygen-eliminating device 1 includes water tank 11 and heater 12, and 12 upper end of heater is provided with exhaust outlet 14 and filler
13, burp valve and steam exhaust recovery tube 15 are connected on exhaust outlet 14.
The exhaust steam recoverer 2 includes shell, and the space in shell forms reclaiming chamber.Reclaiming chamber bottom is equipped with steam expansion
Dissipate device 21,21 lower inlet of steam diffuser connection steam exhaust recovery tube 15.Steam diffuser lower end is that straight pipe type upper end is funnel
Shape is axially perpendicular to the bottom wall installation of shell.Reclaiming chamber top is equipped with tube coil type heat exchanger 23, heat exchanger 23 into
The mouth of a river is connected to sweet-water tank 3 by heat exchanger water inlet pipe 231 and deaerated feedwater pump 232.2 housing top end of exhaust steam recoverer is pacified
Equipped with steam exhaust diffusion mouth 22, shell bottom is equipped with condensed water discharge outlet, and condensed water discharge outlet is connected by condensed water discharge pipe 27
It is connected to sweet-water tank 3.In this way, the steam exhaust discharged after the heating of oxygen-eliminating device 1 is discharged into exhaust steam recoverer 2, expand through steam diffuser
It is excluded upwards through steam exhaust diffusion mouth 22 after dissipating uniformly.The relatively low coil pipe liquefaction of temperature is met in steam uphill process and condenses into water droplet drop
Reclaiming chamber bottom is dropped down onto, being emitted into sweet-water tank 3 by condensed water discharge outlet recycles.Demineralized water in sweet-water tank 3 is in disk
Heat exchange is carried out with steam in pipe, has not only recycled condensed water, but also the rise of demineralized water heating temperature saves oxygen-eliminating device 1
The time of heating and thermal energy, it is energy saving.
Heat exchanger water outlet is connected to feed water preheater water inlet 41, feed water preheater water outlet by desalination waterpipe 24
Mouth 42 is connected to oxygen-eliminating device water inlet through pipeline, and the demineralized water after steam heats is feeding water further across feed water preheater 4
It is absorbed heat again heating using boiler exhaust gas in preheater 4, is imported through filler 13 after this and deoxygenation is heated in oxygen-eliminating device 1.Feedwater is pre-
Hot device includes preheater shell, and enclosure is the coil pipe of bend alignment, and demineralized water, coil pipe outflow boiler exhaust gas are flowed in coil pipe.
Demineralized water, into feed water preheater 4, can prevent feed water preheater dew point corrosion after heat exchanger heats.Demineralized water is pre- in feedwater
The heat of boiler exhaust gas is absorbed in hot device 4 can reduce exhaust temperature simultaneously, reach discharge standard,
The liquid level gauge 29 of detection condensate water level is also equipped on the shell, draining is installed on the condensed water discharge pipe 27
Solenoid valve 28,29 output terminal of liquid level gauge are electrically connected with single-chip microcomputer input, and single-chip microcomputer output is electrically connected with drain solenoid valve 28.
When the condensed water deep of outer casing bottom reaches 100mm~400mm, microcontroller control drain solenoid valve 28 is opened, condensed water discharge,
Ensure that condensate water level is less than the top edge of steam diffuser 21.
For the ease of repairing exhaust steam recoverer 2, between the heat exchanger water inlet pipe 231 and feed water preheater water inlet 41
It is also associated with maintenance branch 25 and service valve 26.When overhauling exhaust steam recoverer 2, service valve 26 is opened, demineralized water bypasses steam exhaust
Recover 2 is directly entered feed water preheater 4.
Dry cooling oxygen remover dead steam recovery system described in the present embodiment can utilize existing dry coke quenching deaerating plant to transform
It forms, transformation is convenient, stable.The system uses the exhaust steam recoverer 2 of designed, designed, and the heat entrained by steam exhaust is used for
Demineralized water is heated, is collected simultaneously condensation water recovery and use, improves energy utilization rate.Steam exhaust through steam diffuser diffusion uniformly after,
It is come into full contact with the coil pipe of heat exchanger 23, rate of heat exchange is high, and demineralized water is located in coil pipe not to be contacted directly with steam exhaust, Bu Huirong
The oxygen in steam exhaust is solved, does not increase oxygen content.Demineralized water carries out deoxygenation after feed water preheater 4 heats again into oxygen-eliminating device 1,
Demineralized water its temperature after heating twice improves, and 1 heating time of oxygen-eliminating device shortens, and institute's the mount of using heat is reduced, and has good energy saving
Effect.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but it is every without departing from technical solution of the present invention content, technical spirit according to the invention
Any simple modification for being made to above example, equivalent variations and remodeling still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of dry cooling oxygen remover dead steam recovery system, it is characterised in that:Including oxygen-eliminating device, exhaust steam recoverer, sweet-water tank
And feed water preheater;
The exhaust steam recoverer includes shell, and reclaiming chamber is formed in shell, and reclaiming chamber bottom is equipped with steam diffuser, and steam expands
It dissipating device entrance and is connected to oxygen-eliminating device exhaust outlet, reclaiming chamber top is equipped with heat exchanger, and housing top end is equipped with steam exhaust diffusion mouth,
Shell bottom is equipped with condensed water discharge outlet, and the condensed water discharge pipe of condensed water discharge outlet is connected to sweet-water tank;
The sweet-water tank is connected to heat exchanger water inlet through water pump and pipeline, heat exchanger water outlet through pipeline be connected to
Water preheater water inlet, feed water preheater water outlet are connected to oxygen-eliminating device water inlet through pipeline.
2. dry cooling oxygen remover dead steam recovery system according to claim 1, it is characterised in that:It is also installed on the shell
There is the liquid level gauge of detection condensate water level, drain solenoid valve, liquid level gauge output terminal and list are installed on the condensed water discharge pipe
Piece machine input terminal is electrically connected, and single-chip microcomputer output is electrically connected with drain solenoid valve.
3. dry cooling oxygen remover dead steam recovery system according to claim 1, it is characterised in that:The water pump is pre- with feedwater
Maintenance branch and service valve are also associated between hot device water inlet.
4. dry cooling oxygen remover dead steam recovery system according to claim 3, it is characterised in that:The steam diffuser axis
To the bottom wall perpendicular to shell.
5. dry cooling oxygen remover dead steam recovery system according to claim 4, it is characterised in that:On the steam diffuser
It holds as infundibulate.
Priority Applications (1)
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CN201810104516.9A CN108105753A (en) | 2018-02-02 | 2018-02-02 | A kind of dry cooling oxygen remover dead steam recovery system |
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CN201810104516.9A CN108105753A (en) | 2018-02-02 | 2018-02-02 | A kind of dry cooling oxygen remover dead steam recovery system |
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CN108105753A true CN108105753A (en) | 2018-06-01 |
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CN201810104516.9A Pending CN108105753A (en) | 2018-02-02 | 2018-02-02 | A kind of dry cooling oxygen remover dead steam recovery system |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108662574A (en) * | 2018-05-07 | 2018-10-16 | 山东胜星化工有限公司 | A kind of control system of steam exhaust recovering device |
CN110220184A (en) * | 2019-07-03 | 2019-09-10 | 天津市天元机械制造有限公司 | A kind of Boiler Steam condensate recyclable device |
CN117869869A (en) * | 2023-03-14 | 2024-04-12 | 连云港瑞良环保科技有限公司 | Deaerator for biomass boiler and exhaust heat recycling device thereof |
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CN206207397U (en) * | 2016-09-14 | 2017-05-31 | 西安安耐杰环保科技有限公司 | A kind of Industrial Boiler oxygen-eliminating device optimizes system |
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CN108662574A (en) * | 2018-05-07 | 2018-10-16 | 山东胜星化工有限公司 | A kind of control system of steam exhaust recovering device |
CN110220184A (en) * | 2019-07-03 | 2019-09-10 | 天津市天元机械制造有限公司 | A kind of Boiler Steam condensate recyclable device |
CN117869869A (en) * | 2023-03-14 | 2024-04-12 | 连云港瑞良环保科技有限公司 | Deaerator for biomass boiler and exhaust heat recycling device thereof |
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Application publication date: 20180601 |