CN110043918A - A kind of adjacent stove heating activation system with steam air heater - Google Patents
A kind of adjacent stove heating activation system with steam air heater Download PDFInfo
- Publication number
- CN110043918A CN110043918A CN201910314430.3A CN201910314430A CN110043918A CN 110043918 A CN110043918 A CN 110043918A CN 201910314430 A CN201910314430 A CN 201910314430A CN 110043918 A CN110043918 A CN 110043918A
- Authority
- CN
- China
- Prior art keywords
- waterway pipe
- unit
- condensed water
- stack
- economizer
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 230000004913 activation Effects 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000009833 condensation Methods 0.000 claims abstract description 16
- 230000005494 condensation Effects 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 9
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 20
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The adjacent stove heating activation system with steam air heater that the invention discloses a kind of, it include: two units, unit includes low-level (stack-gas) economizer, condensed water providing warm air device, air preheater, condense water tank, low-level (stack-gas) economizer is connected to by the first waterway pipe with condensation water tank, low-level (stack-gas) economizer is connected to by the second waterway pipe with condensed water providing warm air device, condensed water providing warm air device is connected to by third waterway pipe with condensation water tank, condensed water steam air heater is connected to by air supply line with air preheater, first waterway pipe of two units is connected to by the 7th waterway pipe, the third waterway pipe of two units is connected to by the 8th waterway pipe, when A unit works, steam air heater is heated using the high temperature closed-up water of low-level (stack-gas) economizer heating, to improve A unit air preheater entrance one, secondary air temperature, save the heating cost of air preheater, in B unit starting , the steam air heater of B unit is heated by the high temperature closed-up water of A unit, reduces B unit starting cost.
Description
Technical field
The present invention relates to technical field of waste heat utilization more particularly to a kind of adjacent stove heating activation systems with steam air heater.
Background technique
In recent years, with constantly soaring and global warming trend the aggravation of international oil price, energy-saving and emission-reduction have become full society
It can know together, shorten the starting time of unit and optimize the Starting mode of unit, also become the emphasis of investor's concern.For super
Boiler start-up system is arranged in supercritical unit and direct current cooker, to guarantee safety when performing low-load running of machine set, realizes that boiler is cold
State, hot flushing simultaneously save working medium and heat and meet the needs of boiler different conditions starting.But due to the process duration
It is longer, great amount of fuel oil and fire coal need to be expended.For the consumption of effectively save boiler startup igniter fuel, many engineerings domestic at present are
The sparking mode such as plasma ignition or tiny-oil ignition are considered as, but nonetheless, it is still necessary to consume certain fuel.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of, and the adjacent stove heating with steam air heater starts system
System；
A kind of adjacent stove heating activation system with steam air heater proposed by the present invention, comprising: the first unit and the second unit；
First unit includes the first low-level (stack-gas) economizer, the first condensed water providing warm air device, the first air preheater, the first condensed water water
Case, the first low-level (stack-gas) economizer are connected to by the first waterway pipe with the first condensation water tank, and the first low-level (stack-gas) economizer passes through second
Waterway pipe is connected to the first condensed water providing warm air device, and the first condensed water providing warm air device passes through third waterway pipe and the first condensation
Water tank connection, the first condensed water steam air heater are connected to by the first air supply line with the first air preheater；
Second unit includes the second low-level (stack-gas) economizer, the second condensed water providing warm air device, the second air preheater, the second condensed water water
Case, the second low-level (stack-gas) economizer are connected to by the 4th waterway pipe with the second condensation water tank, and the second low-level (stack-gas) economizer passes through the 5th
Waterway pipe is connected to the second condensed water providing warm air device, and the second condensed water providing warm air device passes through the 6th waterway pipe and the second condensation
Water tank connection, the second condensed water steam air heater are connected to by the second air supply line with the second air preheater；
Second waterway pipe is connected to by the 7th waterway pipe with the 5th waterway pipe, and third waterway pipe passes through the 8th water
Road pipeline is connected to the 6th waterway pipe.
Preferably, the 7th waterway pipe is equipped with the first regulating valve, and the 8th waterway pipe is equipped with the second regulating valve.
Preferably, the first waterway pipe is equipped with the first pressure charging valve, and the 4th waterway pipe is equipped with the second pressure charging valve.
In the present invention, in A unit (a certain unit in the first unit or the second unit) normal work stage, A unit is utilized
High temperature closed-up water through low-level (stack-gas) economizer heating heats steam air heater, so that first and second wind-warm syndrome of air preheater entrance of A unit is improved,
The advantage that the fume afterheat of low-level (stack-gas) economizer utilizes is given full play to, at B unit (another unit in the first unit or the second unit)
When in startup stage, the high temperature closed-up water heated through low-level (stack-gas) economizer is utilized to heat the steam air heater of B unit by A unit, both
The time that B unit ignition is run to unit total tune can be shortened, the consumption of fuel when can also reduce B unit starting reduces B machine
Group start-up cost, for alleviating, water-cooling wall transversal crack, heating rate is too fast positive effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the adjacent stove heating activation system with steam air heater proposed by the present invention.
Specific embodiment
In figure one, the first unit of 1-, the first low-level (stack-gas) economizer of 11-, 12- the first condensed water providing warm air device, the first sky of 13- is in advance
Device, 14- first condense water tank, the first waterway pipe of 15-, the second waterway pipe of 16-, 17- third waterway pipe, 18- first
Air supply line；The second unit of 2-, the second low-level (stack-gas) economizer of 21-, 22- the second condensed water providing warm air device, the second air preheater of 23-, 24-
Second condensation water tank, the 4th waterway pipe of 25-, the 5th waterway pipe of 26-, the 6th waterway pipe of 27-, the second air duct of 28-
Road；The 7th waterway pipe of 3-, the 8th waterway pipe of 4-.
Referring to Fig.1, a kind of adjacent stove heating activation system with steam air heater proposed by the present invention, comprising: the first unit and
Two units；
First unit includes the first low-level (stack-gas) economizer, the first condensed water providing warm air device, the first air preheater, the first condensed water water
Case, the first low-level (stack-gas) economizer are connected to by the first waterway pipe with the first condensation water tank, and the first low-level (stack-gas) economizer passes through second
Waterway pipe is connected to the first condensed water providing warm air device, and the first condensed water providing warm air device passes through third waterway pipe and the first condensation
Water tank connection, the first condensed water steam air heater are connected to by the first air supply line with the first air preheater；
Second unit includes the second low-level (stack-gas) economizer, the second condensed water providing warm air device, the second air preheater, the second condensed water water
Case, the second low-level (stack-gas) economizer are connected to by the 4th waterway pipe with the second condensation water tank, and the second low-level (stack-gas) economizer passes through the 5th
Waterway pipe is connected to the second condensed water providing warm air device, and the second condensed water providing warm air device passes through the 6th waterway pipe and the second condensation
Water tank connection, the second condensed water steam air heater are connected to by the second air supply line with the second air preheater；
Second waterway pipe is connected to by the 7th waterway pipe with the 5th waterway pipe, and third waterway pipe passes through the 8th water
Road pipeline is connected to the 6th waterway pipe；7th waterway pipe is equipped with the first regulating valve, and the 8th waterway pipe is equipped with second
Regulating valve；First waterway pipe is equipped with the first pressure charging valve, and the 4th waterway pipe is equipped with the second pressure charging valve.
In concrete scheme, in the condensation water tank of A unit (a certain unit in the first unit or the second unit) steam turbine side
Cold condensate through the low-level (stack-gas) economizer of A unit hot fume heating after, from low-level (stack-gas) economizer flow out high temperature closed-up water can flow
Enter in the condensed water providing warm air device of A unit, flowed back to after being preheated to the cold wind for entering condensed water providing warm air device, and then improves
First and second wind-warm syndrome of air preheater of A unit reduces the energy consumption of the air preheater of A unit by UTILIZATION OF VESIDUAL HEAT IN, from low-level (stack-gas) economizer
The high temperature closed-up water of outflow enters the B unit (enabling a unit in the first unit or the second unit) in startup stage, borrows
It is heated with condensed water providing warm air device of the high temperature closed-up water of A unit to B unit, reaches required parameter, the party
Formula is adjacent stove heating, and after adjacent stove heating, the phase change zone of water-cooling wall shifts to an earlier date significantly, and thermal uniformity is extremely good, reduces
Unit durability loss reduces transversal crack generation probability, and starting speed greatly improves, and substantially reduces unit ignition to entirety
The time of coordinated operation saves coming into operation for initial fuel, and the starting time shortens, starts flow-reduction, can avoid black furnace point
The uncombusted flame of fire, which directly washes away convection heating surface, leads to the generation of boiler tube bursting phenomenon, avoids boiler tail combustible
Burning, significantly improves the starting safety of boiler, and the 7th waterway pipe is equipped with the first regulating valve, sets on the 8th waterway pipe
There is the second regulating valve, by regulating switch valve, controls the circulation of high temperature closed-up water.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of adjacent stove heating activation system with steam air heater characterized by comprising the first unit and the second unit；
First unit includes the first low-level (stack-gas) economizer, the first condensed water providing warm air device, the first air preheater, the first condensation water tank,
First low-level (stack-gas) economizer is connected to by the first waterway pipe with the first condensation water tank, and the first low-level (stack-gas) economizer passes through the second water route
Pipeline is connected to the first condensed water providing warm air device, and the first condensed water providing warm air device passes through third waterway pipe and the first condensed water water
Case connection, the first condensed water steam air heater are connected to by the first air supply line with the first air preheater；
Second unit includes the second low-level (stack-gas) economizer, the second condensed water providing warm air device, the second air preheater, the second condensation water tank,
Second low-level (stack-gas) economizer is connected to by the 4th waterway pipe with the second condensation water tank, and the second low-level (stack-gas) economizer passes through the 5th water route
Pipeline is connected to the second condensed water providing warm air device, and the second condensed water providing warm air device passes through the 6th waterway pipe and the second condensed water water
Case connection, the second condensed water steam air heater are connected to by the second air supply line with the second air preheater；
Second waterway pipe is connected to by the 7th waterway pipe with the 5th waterway pipe, and third waterway pipe passes through the 8th waterway tube
Road is connected to the 6th waterway pipe.
2. the adjacent stove heating activation system according to claim 1 with steam air heater, which is characterized in that on the 7th waterway pipe
Equipped with the first regulating valve, the 8th waterway pipe is equipped with the second regulating valve.
3. the adjacent stove heating activation system according to claim 1 with steam air heater, which is characterized in that on the first waterway pipe
Equipped with the first pressure charging valve, the 4th waterway pipe is equipped with the second pressure charging valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314430.3A CN110043918B (en) | 2019-04-18 | 2019-04-18 | Adjacent furnace heating starting system with air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314430.3A CN110043918B (en) | 2019-04-18 | 2019-04-18 | Adjacent furnace heating starting system with air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110043918A true CN110043918A (en) | 2019-07-23 |
| CN110043918B CN110043918B (en) | 2024-04-02 |
Family
ID=67277669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314430.3A Active CN110043918B (en) | 2019-04-18 | 2019-04-18 | Adjacent furnace heating starting system with air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043918B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558227A (en) * | 1983-06-14 | 1985-12-10 | Hitachi, Ltd. | Method of controlling operation of thermoelectric power station |
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| CN102305413A (en) * | 2011-07-28 | 2012-01-04 | 中国电力工程顾问集团西南电力设计院 | Exhaust gas waste heat recovery and emission reduction comprehensive application system for coal-fired boiler in thermal power plant |
| CN104296121A (en) * | 2014-09-25 | 2015-01-21 | 黑龙江宏宇电站设备有限公司 | Power station boiler neighbor machine steam heating starting device and warm starting method |
| CN204460172U (en) * | 2015-01-14 | 2015-07-08 | 陕西万方节能科技股份有限公司 | A kind of pulverized-coal fired boiler adjacent stove heating coil start up system |
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| CN205245218U (en) * | 2015-12-31 | 2016-05-18 | 神华集团有限责任公司 | Boiler system |
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| CN207268458U (en) * | 2017-08-01 | 2018-04-24 | 中国大唐集团科学技术研究院有限公司火力发电技术研究所 | The system for preventing ammonium hydrogen sulfate from blocking air preheater after SCR denitration transformation |
| CN207422196U (en) * | 2017-11-16 | 2018-05-29 | 山西崇光发电有限责任公司 | A kind of CFB units combine afterheat utilizing system |
| CN210035568U (en) * | 2019-04-18 | 2020-02-07 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Adjacent furnace heating starting system with air heater |
-
2019
- 2019-04-18 CN CN201910314430.3A patent/CN110043918B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558227A (en) * | 1983-06-14 | 1985-12-10 | Hitachi, Ltd. | Method of controlling operation of thermoelectric power station |
| DE8915497U1 (en) * | 1989-06-03 | 1990-08-16 | Viessmann, Hans, Dr., 3559 Battenberg, De | |
| CN102305413A (en) * | 2011-07-28 | 2012-01-04 | 中国电力工程顾问集团西南电力设计院 | Exhaust gas waste heat recovery and emission reduction comprehensive application system for coal-fired boiler in thermal power plant |
| CN104296121A (en) * | 2014-09-25 | 2015-01-21 | 黑龙江宏宇电站设备有限公司 | Power station boiler neighbor machine steam heating starting device and warm starting method |
| CN204460172U (en) * | 2015-01-14 | 2015-07-08 | 陕西万方节能科技股份有限公司 | A kind of pulverized-coal fired boiler adjacent stove heating coil start up system |
| CN205137410U (en) * | 2015-11-23 | 2016-04-06 | 李东民 | Tuber pipe contact heating device of coal -fired pulverized coal boiler unit neighbour stove heat |
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| CN106051805A (en) * | 2016-06-24 | 2016-10-26 | 福建龙净环保股份有限公司 | Waste heat recovery system and method with discharged smoke waste heat as heat source of air heater |
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| CN207422196U (en) * | 2017-11-16 | 2018-05-29 | 山西崇光发电有限责任公司 | A kind of CFB units combine afterheat utilizing system |
| CN210035568U (en) * | 2019-04-18 | 2020-02-07 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Adjacent furnace heating starting system with air heater |
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| Publication number | Publication date |
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| CN110043918B (en) | 2024-04-02 |
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