CN107990348A - A kind of two-part steam type airheater - Google Patents
A kind of two-part steam type airheater Download PDFInfo
- Publication number
- CN107990348A CN107990348A CN201711484984.5A CN201711484984A CN107990348A CN 107990348 A CN107990348 A CN 107990348A CN 201711484984 A CN201711484984 A CN 201711484984A CN 107990348 A CN107990348 A CN 107990348A
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- China
- Prior art keywords
- steam
- high pressure
- low pressure
- preheater
- flash
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- 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.)
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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
- F23L15/04—Arrangements of recuperators
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to a kind of two-part steam type airheater, including babinet, low pressure stage, high pressure section, flash tank, into vapour and drain water piping and into steam control valve, drain valve；Low pressure stage and high pressure section are arranged in the babinet；The low pressure stage is low pressure heat-exchanging tube bundle, and the high pressure section is restrained for high pressure heat exchange, leads to low-pressure steam and high steam in tube bank respectively；It is external that the flash tank is arranged in preheater sheet, is connected by high pressure draining pipeline, flash-off steam pipeline with preheater；The steam inlet pipe road is connected with preheater into vapour header respectively；The drain water piping is connected with low pressure and high pressure heat exchange tube bank outlet respectively；Described is arranged on extraction line into steam control valve, hydrophobic to be separately mounted on drain water piping.
Description
Technical field
Patent of the present invention is related to burning city domestic garbage field, and the steam air of specially waste incinerator burning is pre-
Hot device.
Background technology
During incineration treatment of garbage, in order to make waste of low heating value preferably burn, guarantee enters waste incineration burner hearth
Combustion air be maintained at stable temperature, combustion air need to could enter incinerator after steam type airheater heats.
The steam type airheater of major part garbage burning factory is to use two-part preheater at present, i.e. First air passes through first
The low pressure stage for crossing steam turbine steam extraction is heated to about 140 DEG C, and then the high pressure section by drum steam extraction is heated to 220 DEG C, steam heating
The hydrophobic drain water piping that passes through produced afterwards finally respectively enters oxygen-eliminating device.
The shortcomings that above-mentioned pre-heating system, is：1. since drum pressure, temperature are higher, if high pressure section it is hydrophobic directly into
Entering oxygen-eliminating device, to cause entry into oxygen-eliminating device internal pressure temperature higher, destroys oxygen-eliminating device thermal balance, causes oxygen-eliminating device itself to seethe with excitement；
2. the steam extraction amount of said system high-quality steam is larger, loss of steam and water also increases, and causes the substantial amounts of high-quality loss of energy, while heat
It is very low to measure the rate of recovery.
The content of the invention
Patent of the present invention proposes a kind of economic, stable two-part steam air pre-heating system, i.e., using drain recovery
Hydrophobic flashed by flash tank of high temperature and pressure is carried out decrease temperature and pressure processing by system, and the hydrophobic of generation enters oxygen-eliminating device, and flashes
Steam is then recycled to preheater low pressure stage, which system reduces the drain temperature and pressure for entering oxygen-eliminating device, avoids oxygen-eliminating device
Itself boiling problem, while hydrophobic heat has been recycled, reduce steam turbine steam extraction and drum steam extraction amount, improve the economy of system
Property.
In order to achieve the above object, patent of the present invention provides following technical solution：
A kind of two-part steam type airheater, including babinet, low pressure stage, high pressure section, flash tank, into vapour and drain water piping and
Into steam control valve, drain valve；Low pressure stage and high pressure section are arranged in the babinet；The low pressure stage is low pressure heat-exchanging tube bundle,
The high pressure section is restrained for high pressure heat exchange, leads to low-pressure steam and high steam in tube bank respectively；The flash tank is arranged in
Preheater sheet is external, is connected by high pressure draining pipeline, flash-off steam pipeline with preheater；The steam inlet pipe road respectively with advance
Hot device is connected into vapour header；The drain water piping is connected with low pressure and high pressure heat exchange tube bank outlet respectively；It is described into vapour tune
Section valve is arranged on extraction line, hydrophobic to be separately mounted on drain water piping.
Further, before and after the preheater babinet on be provided with air inlet and air outlet；When preheater works, from rubbish
The combustion air in hole enters steam type airheater by wind turbine, exchanges heat successively by low-pressure steam heat exchanging segment, high steam
Two sections of heating of Duan Jinhang.
Further, above-mentioned high pressure section steam comes from drum saturated vapor, and steam is by high pressure section with becoming after air heat-exchange
It is hydrophobic into high pressure saturation, then flashed by high pressure draining pipeline into flash tank, flash-off steam and the steam turbine steam extraction of generation mix
Further exchange heat into low pressure heat exchanging segment after conjunction, the hydrophobic of generation also enters oxygen-eliminating device.
The present invention is rational in infrastructure, reliable, economical, makes full use of flash-off steam, steam turbine steam extraction and boiler drum steam extraction
As air used in the burning of heat source heat stepwise, steam utilization is high, is a kind of efficient air heating apparatus.
Brief description of the drawings
Fig. 1 is patent structure schematic diagram of the present invention；
Fig. 2 is patent system schematic diagram of the present invention；
In figure, 1- babinets, 2- low pressure stages heat exchanger tube, 3- low pressure stages are into vapour header, 4- high pressure sections heat-exchanging tube bundle, 5- high pressure sections into vapour
Header, 6- high pressure drainings pipeline, 7- low pressure drain water piping, 8- flash-off steams pipeline, 9-
Steam turbine extraction line, 10- drums extraction line, 11- flash tanks, 12- flash tanks drain water piping, 13- into steam control valve,
14- drain valves.
Embodiment
A kind of steam type airheater described in patent of the present invention is made into one with reference to attached drawing 1, attached drawing 2 and representative instance in face
The explanation of step.
Shown in Figure 1, a kind of steam type airheater described in patent of the present invention is two-part pre-heating system, specifically
Including babinet, low pressure stage, high pressure section, flash tank and into vapour and drain water piping.Referring to Fig. 2, low pressure heat-exchanging tube bundle 2, high pressure section change
Heat pipe bundle 4 is arranged in box house, and it is external that flash tank 11 is arranged in preheater sheet.Saturated vapor from drum enters pipeline 10
Afterwards by being connected into vapour header 5 with high pressure heat exchange tube bank 4, drum steam extraction generates saturated water, saturated water after fully exchanging heat with air
Flash tank 11 is entered by high pressure draining pipeline 6, high pressure draining cools down after temperature drop pressure is handled in flash tank 11 and further becomes
Flash-off steam and hydrophobic, it is hydrophobic to enter oxygen-eliminating device, and flash-off steam then passes through flash-off steam pipeline 8 and enters low pressure steam turbine extraction steam pipe
In road 9；After steam extraction from steam turbine is mixed with flash-off steam, by entering low pressure heat-exchanging tube bundle into vapour header 3, with air heat-exchange
What is generated afterwards hydrophobic then enters oxygen-eliminating device；Vapour can be adjusted in preheater operational process by adjusting the aperture into steam control valve 13
Machine steam extraction and drum extraction flow size, and then adjust air preheater outlet air temperature；It can be prevented using drain valve 14 pre-
In hot device in steam flow ipe.
Claims (3)
- A kind of 1. two-part steam type airheater, it is characterised in that including babinet, low pressure stage, high pressure section, flash tank, into vapour And drain water piping and into steam control valve, drain valve；Low pressure stage and high pressure section are arranged in the babinet；The low pressure stage is Low pressure heat-exchanging tube bundle, the high pressure section are restrained for high pressure heat exchange, lead to low-pressure steam and high steam in tube bank respectively；Described It is external that flash tank is arranged in preheater sheet, is connected by high pressure draining pipeline, flash-off steam pipeline with preheater；It is described into vapour Pipeline is connected with preheater into vapour header respectively；The drain water piping is connected with low pressure and high pressure heat exchange tube bank outlet respectively； Described is arranged on extraction line into steam control valve, hydrophobic to be separately mounted on drain water piping.
- 2. a kind of two-part steam type airheater according to claim 1, it is characterised in that before and after preheater babinet On be provided with air inlet and air outlet.
- 3. a kind of two-part steam type airheater according to claim 1, it is characterised in that the high pressure section steam comes From drum saturated vapor, steam is hydrophobic with becoming high pressure saturation after air heat-exchange by high pressure section, then by high pressure draining pipe Road is flashed into flash tank, and the flash-off steam of generation further exchanges heat after being mixed with steam turbine steam extraction into low pressure heat exchanging segment, generation Hydrophobic also enter oxygen-eliminating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484984.5A CN107990348A (en) | 2017-12-30 | 2017-12-30 | A kind of two-part steam type airheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484984.5A CN107990348A (en) | 2017-12-30 | 2017-12-30 | A kind of two-part steam type airheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107990348A true CN107990348A (en) | 2018-05-04 |
Family
ID=62040491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711484984.5A Pending CN107990348A (en) | 2017-12-30 | 2017-12-30 | A kind of two-part steam type airheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107990348A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974000A (en) * | 2019-02-25 | 2019-07-05 | 深圳市绿色东方环保有限公司 | It is a kind of that pre-warm technique being carried out to garbage warehouse using boiler air-supply |
| CN110566933A (en) * | 2019-09-19 | 2019-12-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Multi-stage expansion heating assembly |
| CN110578932A (en) * | 2019-03-31 | 2019-12-17 | 上海康恒环境股份有限公司 | novel steam flue gas preheater |
| CN112594664A (en) * | 2020-12-16 | 2021-04-02 | 上海康恒环境股份有限公司 | Intelligent hydrophobic steam-air preheater system and automatic control method thereof |
| CN115180672A (en) * | 2022-07-19 | 2022-10-14 | 北京清创晋华科技有限公司 | Boiler system and method for producing steam by using wastewater |
Citations (7)
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|---|---|---|---|---|
| CN201496990U (en) * | 2009-09-03 | 2010-06-02 | 常州宝禹泰工业设备有限公司 | Two-section steam-heated air pre-heater |
| CN201496991U (en) * | 2009-09-03 | 2010-06-02 | 常州宝禹泰工业设备有限公司 | Split-type steam air pre-heater |
| CN106439855A (en) * | 2016-11-08 | 2017-02-22 | 广州广重企业集团有限公司 | Steam air preheating system of waste incineration boiler |
| CN206496353U (en) * | 2016-11-08 | 2017-09-15 | 广州广重企业集团有限公司 | A kind of steam air pre-heating system of garbage burning boiler |
| CN206682957U (en) * | 2017-04-27 | 2017-11-28 | 安徽新力电业高技术有限责任公司 | A kind of incinerator air intake pre-heating system and its waste heat secondary use type preheater |
| CN206724221U (en) * | 2017-04-25 | 2017-12-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Residual neat recovering system |
| CN207815377U (en) * | 2017-12-30 | 2018-09-04 | 上海康恒环境股份有限公司 | A kind of two-part steam type airheater |
-
2017
- 2017-12-30 CN CN201711484984.5A patent/CN107990348A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201496990U (en) * | 2009-09-03 | 2010-06-02 | 常州宝禹泰工业设备有限公司 | Two-section steam-heated air pre-heater |
| CN201496991U (en) * | 2009-09-03 | 2010-06-02 | 常州宝禹泰工业设备有限公司 | Split-type steam air pre-heater |
| CN106439855A (en) * | 2016-11-08 | 2017-02-22 | 广州广重企业集团有限公司 | Steam air preheating system of waste incineration boiler |
| CN206496353U (en) * | 2016-11-08 | 2017-09-15 | 广州广重企业集团有限公司 | A kind of steam air pre-heating system of garbage burning boiler |
| CN206724221U (en) * | 2017-04-25 | 2017-12-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Residual neat recovering system |
| CN206682957U (en) * | 2017-04-27 | 2017-11-28 | 安徽新力电业高技术有限责任公司 | A kind of incinerator air intake pre-heating system and its waste heat secondary use type preheater |
| CN207815377U (en) * | 2017-12-30 | 2018-09-04 | 上海康恒环境股份有限公司 | A kind of two-part steam type airheater |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974000A (en) * | 2019-02-25 | 2019-07-05 | 深圳市绿色东方环保有限公司 | It is a kind of that pre-warm technique being carried out to garbage warehouse using boiler air-supply |
| CN110578932A (en) * | 2019-03-31 | 2019-12-17 | 上海康恒环境股份有限公司 | novel steam flue gas preheater |
| CN110566933A (en) * | 2019-09-19 | 2019-12-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Multi-stage expansion heating assembly |
| CN112594664A (en) * | 2020-12-16 | 2021-04-02 | 上海康恒环境股份有限公司 | Intelligent hydrophobic steam-air preheater system and automatic control method thereof |
| CN115180672A (en) * | 2022-07-19 | 2022-10-14 | 北京清创晋华科技有限公司 | Boiler system and method for producing steam by using wastewater |
| CN115180672B (en) * | 2022-07-19 | 2024-05-17 | 北京清创晋华科技有限公司 | Boiler system and method utilizing waste water vapor |
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