CN106594790A - Air preheating device for thermal power generation - Google Patents
Air preheating device for thermal power generation Download PDFInfo
- Publication number
- CN106594790A CN106594790A CN201611203468.6A CN201611203468A CN106594790A CN 106594790 A CN106594790 A CN 106594790A CN 201611203468 A CN201611203468 A CN 201611203468A CN 106594790 A CN106594790 A CN 106594790A
- Authority
- CN
- China
- Prior art keywords
- heat
- heat exchange
- air
- power generation
- thermal power
- 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
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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/087—Heat exchange elements made from metals or metal alloys from nickel or nickel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0024—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion apparatus, e.g. for boilers
-
- 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
An air preheating device for thermal power generation comprises an air preheating case and a heat exchanging device. A stainless steel metal filtering panel is arranged at the lower end inside the air preheating case; the upper end of the stainless steel metal filtering panel serves as a heat exchanging room, and the lower end of the stainless steel metal filtering panel serves as an ash room; the heat exchanging device is arranged inside the heat exchanging room; a smoke inlet pipe is arranged at the lower end of the left side of the heat exchanging room, and a smoke discharging pipe is arranged at the lower end of the right side of the heat exchanging room; preheated air inlet pipes are arranged at the lower end of the left side of the heat exchanging room and the upper end of the smoke inlet pipe correspondingly; preheated air discharging pipes are arranged at the lower end of the right side of the heat exchanging room and the upper end of the smoke discharging pipe correspondingly; and an inspection door is arranged on the left side face of the heat exchanging room, and an ash-removing door is arranged on the right side face of the ash room. The air preheating device for the thermal power generation has the advantages of being better in heat exchanging effect, higher in heat exchanging efficiency, capable of exchanging heat for air effectively, and better in air combustion-supporting effect.
Description
Technical field
The present invention relates to field of thermal power, more particularly to a kind of thermal power generation air preheater.
Background technology
In current boiler or other incinerators in order to increase economic efficiency and boiler in fuel burn-off rate,
It is typically necessary and fuel and combustion adjuvant is heated, need to reclaim high-temperature flue gas energy using air, is typically necessary use
The energy of high-temperature gas is converted to heat exchanger the energy of air, and air preheater is improved using fume afterheat and enters burner hearth
The equipment of air themperature.Its operation principle is：The side of heating surface, by air, carries out Re Jiaore by flue gas, opposite side,
Air is heated, temperature is improved；Decline flue gas exhaust gas temperature, improve the producing level of fume afterheat.But, current city
Heat exchanger heat exchange efficiency on field is relatively low, heat transfer effect is poor, it is impossible to makes full use of the waste heat in flue gas, causes the wave of the energy
Take.
The content of the invention
It is an object of the invention to provide a kind of thermal power generation air preheater, heat transfer effect preferably, heat exchange efficiency compared with
Height, effectively can be exchanged heat so that air-breathing effect is more preferable for air.
The purpose of the present invention is achieved through the following technical solutions：
A kind of thermal power generation air preheater, including air preheat case, heat-exchanger rig, the air preheat case interior lower end
Device stainless steel metal filter, stainless steel metal filter upper end is Heat Room, lower end is cinder chamber；Inside the Heat Room
Device heat-exchanger rig；End device smoke inlet pipe under the Heat Room left side, end device flue gas exhaust pipe under right side；The heat exchange
Room left side lower end, smoke inlet pipe device for upper end preheated air air inlet pipe, right side lower end, the preheating of flue gas exhaust pipe device for upper end are empty
Gas blast pipe；Turnaround of unit door on the Heat Room left surface；Device ash door on cinder chamber's right flank.
The heat-exchanger rig is made up of many heat exchange straight tubes, many heat exchange curved pipes, multiple circular heat exchange fins；It is described many
All by heat exchange curved pipe connection between root heat exchange straight tube；All by heat exchange straight tube connection between many heat exchange curved pipe；
The multiple circular heat exchange fins of device on the heat exchange straight tube；The heat-exchanger rig left end connects preheated air air inlet pipe, and right-hand member connects
Connect preheated air blast pipe.
End device polylith vertically goes up chock flap under the Heat Room top surface；The stainless steel metal filter device for upper end is more
Block vertically descends chock flap；Interval setting between chock flap under chock flap, polylith on the polylith.
The heat exchange straight tube is all Alpaka pipe with heat exchange curved pipe.
The upper chock flap, lower chock flap are all ceramic wafer.
The air preheat case inside device warming plate.
Beneficial effects of the present invention：A kind of thermal power generation air preheater of the present invention, heat transfer effect is preferable, heat exchange
Efficiency is higher, effectively can be exchanged heat for air so that air-breathing effect is more preferable.
The present invention a kind of thermal power generation air preheater, air heat-exchange case interior arrangement heat-exchanger rig by many
Root heat exchange curved pipe, many heat exchange straight tubes and heat exchange straight tube on multiple circular heat exchange fin constitute, integral loop around setting, and
Chock flap or lower chock flap on exchanging heat and all arranged between straight tube at many, not only can effectively stop the grey trifle in the world filtered in flue gas
Matter, and can effectively reduce the velocity of liquid assets of flue gas so that time of the flue gas inside air preheat case is longer, is easy to more preferably
Heat exchange, heat transfer effect preferably, heat exchange efficiency it is higher.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
In figure, 1- air preheat casees；2- heat-exchanger rigs；3- stainless steel metal filters；4- Heat Rooms；5- cinder chamber；6- flue gases
Air inlet pipe；7- flue gas exhaust pipes；8- preheated air air inlet pipe；9- preheated air blast pipes；10- maintenance doors；11- ash doors；12-
Heat exchange straight tube；13- heat exchange curved pipes；14- circle heat exchange fins；The upper chock flaps of 15-；Chock flap under 16-；17- warming plates.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, a kind of thermal power generation air preheater, including air preheat case 1, heat-exchanger rig 2, the air is pre-
The interior lower end device stainless steel metal filter 3 of hot tank 1, it is lime-ash that the upper end of stainless steel metal filter 3 is Heat Room 4, lower end
Room 5；The interior arrangement heat-exchanger rig 2 of the Heat Room 4；The lower end device smoke inlet pipe 6 in the left side of the Heat Room 4, right side lower end
Device flue gas exhaust pipe 7；The left side lower end of the Heat Room 4, the device for upper end preheated air air inlet pipe 8 of smoke inlet pipe 6, under right side
End, the device for upper end preheated air blast pipe 9 of flue gas exhaust pipe 7；Turnaround of unit door 10 on the left surface of the Heat Room 4；The ash
Device ash door 11 on the right flank of grit chamber 5.
Embodiment 2
As shown in figure 1, the heat-exchanger rig 2 is by many heat exchange straight tubes 12, many heat exchange curved pipes 13, multiple circular heat exchange fins
14 are constituted；All connected by heat exchange curved pipe 13 between many heat exchange straight tube 12；Between many heat exchange curved pipe 13
All connected by heat exchange straight tube 12；The multiple circular heat exchange fins 14 of device on the heat exchange straight tube 12；The left end of the heat-exchanger rig 2
Connection preheated air air inlet pipe 8, right-hand member connection preheated air blast pipe 9.
Embodiment 3
As shown in figure 1, end device polylith vertically goes up chock flap 15 under the top surface of the Heat Room 4；The stainless steel metal filter 3
Device for upper end polylith vertically descends chock flap 16；Interval setting between chock flap 16 under chock flap 15, polylith on the polylith.
Embodiment 4
As shown in figure 1, the heat exchange straight tube 12 is all Alpaka pipe with heat exchange curved pipe 13.
Embodiment 5
As shown in figure 1, the upper chock flap 15, lower chock flap 16 are all ceramic wafer.
Embodiment 6
As shown in figure 1, the inside device warming plate 17 of the air preheat case 1.
Claims (6)
1. a kind of thermal power generation air preheater, including air preheat case, heat-exchanger rig, it is characterised in that：The air
Preheating cabinet interior lower end device stainless steel metal filter, stainless steel metal filter upper end is Heat Room, lower end is cinder chamber；
The Heat Room interior arrangement heat-exchanger rig；End device smoke inlet pipe under the Heat Room left side, end device flue gas under right side
Blast pipe；Heat Room left side lower end, smoke inlet pipe device for upper end preheated air air inlet pipe, right side lower end, flue gas exhaust
Pipe device for upper end preheated air blast pipe；Turnaround of unit door on the Heat Room left surface；Device on cinder chamber's right flank
Ash door.
2. a kind of thermal power generation air preheater according to claim 1, it is characterised in that：The heat-exchanger rig by
Many heat exchange straight tubes, many heat exchange curved pipes, multiple circular heat exchange fins are constituted；All by changing between many heat exchange straight tube
Hot curved pipe connection；All by heat exchange straight tube connection between many heat exchange curved pipe；Device is multiple on the heat exchange straight tube
Circular heat exchange fin；The heat-exchanger rig left end connects preheated air air inlet pipe, right-hand member connection preheated air blast pipe.
3. a kind of thermal power generation air preheater according to claim 1, it is characterised in that：The Heat Room top surface
Lower end device polylith vertically goes up chock flap；The stainless steel metal filter device for upper end polylith vertically descends chock flap；It is described many
Interval setting between chock flap under chock flap, polylith on block.
4. a kind of thermal power generation air preheater according to claim 2, it is characterised in that：It is described heat exchange straight tube with
Heat exchange curved pipe is all Alpaka pipe.
5. a kind of thermal power generation air preheater according to claim 3, it is characterised in that：The upper chock flap,
Lower chock flap is all ceramic wafer.
6. a kind of thermal power generation air preheater according to claim 1, it is characterised in that：The air preheat case
Inside device warming plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203468.6A CN106594790A (en) | 2016-12-23 | 2016-12-23 | Air preheating device for thermal power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203468.6A CN106594790A (en) | 2016-12-23 | 2016-12-23 | Air preheating device for thermal power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106594790A true CN106594790A (en) | 2017-04-26 |
Family
ID=58601049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203468.6A Pending CN106594790A (en) | 2016-12-23 | 2016-12-23 | Air preheating device for thermal power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340814A (en) * | 2018-10-17 | 2019-02-15 | 马鞍山沐及信息科技有限公司 | A kind of air preheater for residual neat recovering system |
-
2016
- 2016-12-23 CN CN201611203468.6A patent/CN106594790A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340814A (en) * | 2018-10-17 | 2019-02-15 | 马鞍山沐及信息科技有限公司 | A kind of air preheater for residual neat recovering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170426 |
|
| WD01 | Invention patent application deemed withdrawn after publication |