CN208566740U - A kind of three-stage steam type airheater - Google Patents
A kind of three-stage steam type airheater Download PDFInfo
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- CN208566740U CN208566740U CN201721906141.5U CN201721906141U CN208566740U CN 208566740 U CN208566740 U CN 208566740U CN 201721906141 U CN201721906141 U CN 201721906141U CN 208566740 U CN208566740 U CN 208566740U
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- coiled pipe
- steam
- preheater
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- high pressure
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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
- 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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Abstract
The utility model relates to burning city domestic garbage fields, a kind of three-stage steam type airheater, including super cooled sect, low pressure stage, high pressure section and into vapour and drain water piping, super cooled sect coiled pipe, low pressure stage coiled pipe, the high pressure section coiled pipe of three-stage preheater are arranged in preheater box house；High pressure section coiled pipe is connected with drum extraction line, passes through motorized adjustment valve regulation drum steam extraction amount when preheater is run；Drum steam extraction becomes saturated water after high pressure coiled pipe and air heat-exchange, and saturated water enters super cooled sect coiled pipe by pipe and further exchanges heat with air；Low pressure stage coiled pipe is connected with steam turbine extraction line, by adjusting electronic valve regulation steam turbine steam extraction amount；The supercooling that preheater finally generates is hydrophobic and low pressure is hydrophobic enters oxygen-eliminating device by pipeline and pipeline respectively.
Description
Technical field
The utility model relates to burning city domestic garbage fields, specially preheat the steam of waste incinerator combustion air
Air preheater.
Technical background
The steam type airheater of major part burning power plant is using two-part heater at present, i.e. burning is first with wind
The low pressure stage for first passing through steam turbine steam extraction is heated to about 140 DEG C, and then the high pressure section Jing Guo drum steam extraction is heated to 220 DEG C, steam
The hydrophobic drain water piping that passes through generated after heating 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
Enter oxygen-eliminating device will cause it is higher into oxygen-eliminating device internal pressure temperature, destroy oxygen-eliminating device thermal balance, cause oxygen-eliminating device itself boil；
2. the steam extraction amount of above system high-quality steam is larger, loss of steam and water is also increased, and causes a large amount of high-quality loss of energy, while heat
It is lower to measure the rate of recovery.
Utility model content
The utility model proposes a kind of efficient, stable steam air pre-heating systems to be existed using three-stage preheater
Hydrophobic supercooling heat exchanging segment is added in preheater front end, by effectively recycling hydrophobic heat, can effectively solve preheater high pressure saturation and dredge
Water enters itself boiling problem caused by oxygen-eliminating device, reduces steam turbine and drum steam extraction amount, ensure that energy efficient utilizes.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of three-stage steam type airheater, including super cooled sect, low pressure stage, high pressure section and into vapour and drain water piping, three
Super cooled sect coiled pipe, low pressure stage coiled pipe, the high pressure section coiled pipe of segmentation preheater are arranged in preheater box house；High pressure section
Coiled pipe is connected with drum extraction line, passes through motorized adjustment valve regulation drum steam extraction amount when preheater is run；Drum steam extraction warp
Cross after high pressure coiled pipe and air heat-exchange and become saturated water, saturated water by pipe enter super cooled sect coiled pipe further with air into
Row heat exchange；Low pressure stage coiled pipe is connected with steam turbine extraction line, by adjusting electronic valve regulation steam turbine steam extraction amount；Preheater is last
The supercooling of generation is hydrophobic and low pressure is hydrophobic enters oxygen-eliminating device by pipeline and pipeline respectively.
Further, before and after the preheater cabinet on be provided with air inlet and air outlet；When preheater works, rubbish is come from
The combustion air in hole enters steam type airheater by blower, successively exchanges heat by high pressure draining heat exchanging segment, low-pressure steam
Section, high steam heat exchanging segment carry out segmentally heating.
Further, a kind of steam type airheater above-mentioned, in which: high pressure section steam comes from drum steam extraction, steam warp
Become high pressure draining after crossing coiled pipe heat exchange, then enters the heat exchange of high pressure draining heat exchanging segment by high pressure draining pipeline, finally become
It is discharged at subcooled water.The steam extraction of low pressure heat exchanging segment comes from steam turbine steam extraction, becomes saturated water row after low pressure heat exchanging segment coiled pipe
Preheater out.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is Tthe utility model system schematic diagram；
In figure, heat exchanging segment coiled pipe, 2- low pressure heat exchanging segment coiled pipe, 3- high pressure heat exchange section coiled pipe, 4- high pressure is subcooled in 1-
It is saturated waterpipe, drain water piping, 6- drain valve, 7- electric control valve, 8- low pressure drain water piping, 9- steam turbine extraction steam pipe is subcooled in 5-
Road, 10- drum extraction line, 11- preheater cabinet.
Specific embodiment
With reference to the accompanying drawing 1, attached drawing 2 and representative instance to a kind of steam type airheater described in the utility model make into
The explanation of one step.
Shown in Figure 1, a kind of steam type airheater described in the utility model is three-stage preheater, is specifically included
Super cooled sect, low pressure stage, high pressure section and into vapour and drain water piping.Referring to fig. 2, the super cooled sect coiled pipe 1 of three-stage preheater, low pressure
Section coiled pipe 2, high pressure section coiled pipe 3 are arranged in inside preheater cabinet 11；High pressure section coiled pipe 3 and 10 phase of drum extraction line
Even, drum steam extraction amount can be adjusted by electric control valve 7 when preheater is run；Drum steam extraction is changed by high pressure coiled pipe with air
Become saturated water after heat, saturated water is further exchanged heat with air by pipe 4 into super cooled sect coiled pipe 1；Low pressure stage is snakelike
Pipe 2 is connected with steam turbine extraction line 9, adjusts steam turbine steam extraction amount by adjusting motor-driven valve 7；The supercooling that preheater finally generates is hydrophobic
With hydrophobic pipeline 5 and the pipeline 8 of passing through respectively of low pressure into oxygen-eliminating device.
The working principle of steam type airheater described in the utility model is as follows: in air side, combustion air passes through
Blower enters preheater cabinet 11, carries out segmentation by super cooled sect coiled pipe 1, low pressure stage coiled pipe 2, high pressure section coiled pipe 3 and adds
Heat, the air after heating, which enters, to be burned inside burner hearth；In steam side, steam turbine steam extraction enters low pressure stage snake by extraction line 9
Shape pipe 2 and air heat-exchange become saturated water, enter oxygen-eliminating device by drain water piping 8；Drum saturated vapor passes through drum extraction steam pipe
Road 10 enters 3 preheated air of high pressure coiled pipe, and the saturated water of generation enters super cooled sect coiled pipe 1 by drain water piping 4, and preheating is empty
Become subcooled water after gas, oxygen-eliminating device is entered by drain water piping 5.
Steam type airheater described in the utility model adds super cooled sect on the basis of two-part preheater, recycling
A large amount of hydrophobic heat, preheating enter the steam type airheater system of air needed for burning in waste incinerator, the system packet
Include two parts: a part is air system, and another part is vapour system.It is come from the air of air side, combustion air system
Dump pit is entered in preheater cabinet by blower, and snakelike heat exchange tube, including three sections: super cooled sect, low pressure are disposed in cabinet
Section, high pressure section；In steam side, the hydrophobic and steam into coiled pipe respectively enters three-stage coiled pipe, will pass through the sky of cabinet
Gas is heated to about 220 DEG C, and the air after heating enters incinerator from incinerator bottom plenum, empty needed for supply incinerator burning
Gas.The utility model is structurally reasonable, reliable for operation, economical, and, steam turbine steam extraction hydrophobic using vapo(u)rous and boiler drum steam extraction are made
For heat source segmentally heating burning air used, it is a kind of efficient air heating apparatus that energy utilization rate is high.Greatly reduce vapour
Machine and drum steam extraction amount, improve economy.
Claims (2)
1. a kind of three-stage steam type airheater, which is characterized in that including super cooled sect, low pressure stage, high pressure section and into vapour and dredge
Waterpipe, super cooled sect coiled pipe, low pressure stage coiled pipe, the high pressure section coiled pipe of three-stage preheater are arranged in preheater cabinet
Portion；High pressure section coiled pipe is connected with drum extraction line, passes through motorized adjustment valve regulation drum steam extraction amount when preheater is run；Vapour
By becoming saturated water after high pressure coiled pipe and air heat-exchange, it is further that saturated water by pipe enters super cooled sect coiled pipe for packet steam extraction
It exchanges heat with air；Low pressure stage coiled pipe is connected with steam turbine extraction line, by adjusting electronic valve regulation steam turbine steam extraction amount；In advance
The supercooling that hot device finally generates is hydrophobic and low pressure is hydrophobic enters oxygen-eliminating device by pipeline respectively.
2. a kind of three-stage steam type airheater according to claim 1, which is characterized in that before and after preheater cabinet
On be provided with air inlet and air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721906141.5U CN208566740U (en) | 2017-12-30 | 2017-12-30 | A kind of three-stage steam type airheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721906141.5U CN208566740U (en) | 2017-12-30 | 2017-12-30 | A kind of three-stage steam type airheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208566740U true CN208566740U (en) | 2019-03-01 |
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ID=65446317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721906141.5U Active CN208566740U (en) | 2017-12-30 | 2017-12-30 | A kind of three-stage steam type airheater |
Country Status (1)
| Country | Link |
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| CN (1) | CN208566740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019772A (en) * | 2017-12-30 | 2018-05-11 | 上海康恒环境股份有限公司 | A kind of three-stage steam type airheater |
-
2017
- 2017-12-30 CN CN201721906141.5U patent/CN208566740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019772A (en) * | 2017-12-30 | 2018-05-11 | 上海康恒环境股份有限公司 | A kind of three-stage steam type airheater |
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