CN202040831U - Rotary air heater - Google Patents
Rotary air heater Download PDFInfo
- Publication number
- CN202040831U CN202040831U CN2011201157276U CN201120115727U CN202040831U CN 202040831 U CN202040831 U CN 202040831U CN 2011201157276 U CN2011201157276 U CN 2011201157276U CN 201120115727 U CN201120115727 U CN 201120115727U CN 202040831 U CN202040831 U CN 202040831U
- Authority
- CN
- China
- Prior art keywords
- heating surface
- heavy wall
- air
- air heater
- steam
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
A rotary air heater is composed of 3 to 8 groups of heat transfer tube bundles strengthened by outer fins. Each group of the heat transfer tube bundles is a frameless self-supporting structure. Two ends of each frameless self-supporting structure are respectively welded to a thick wall gas inlet collecting box and a thick wall drainage collecting box and formed by spiral fin heat transfer tube bundles. The heat transfer tube bundles are evenly distributed inside a primary air duct and a secondary air duct. The tube bundle self-supporting stable structures are utilized, any heat transfer tube bundle can rotate 360 degrees independently, accordingly, problems that a single rotation of a certain level heating surface can not be realized, the 360 degrees of total rotation angles are not be realized, if steam is not cut off, the the heating surface can not rotate, an operation part is complex in structure, the disassembly and maintenance are not easy, ash fouling, leakage and deformation of fins exist are resolved, thereby having the advantages of being free of being dissembled because the rotary air heater is frameless, being capable of rotating at 360 degrees, and being convenient to maintain.
Description
Technical field
The utility model relates to a kind of steam air heater of utility boiler, is specifically related to a kind of rotary steam air heater, this rotary steam air heater be frameless, exempt to dismantle and energy-saving steam air heaters that can 360 ° of full angles rotations.
Background technology
Steam air heater is the boiler auxiliaries of northern China thermal power plant indispensability, is the heat transmission equipment of cold air that heating enters air preheater, and large-sized station boiler divides wind steam air heater and secondary wind steam air heater, and its structure is identical with principle.The thermal power plant generally adopts the steam air heater that puts into operation to improve the wind-warm syndrome that enters air preheater winter, prevent the cold end corrosion that air preheater cold junction generation sulfuric acid dewfall causes, cause the stifled ash of air preheater cold junction heating surface, and then cause the unfavorable operating modes such as increase, the decline of air preheater heat exchange efficiency and exhaust gas temperature rising of suction, fan resistance.
Heat power plant boiler when operation be general adopts low-pressure steam to draw gas wind and secondary wind to the air preheater inlet are carried out the preheating heating, the arrangement of steam air heater in the air channel generally is fixed, according to the size in air channel, the heating surface unit of fin reinforcing was formed outside the steam air heater heating surface bank generally adopted 3 to 8 groups.Because steam air heater mainly moves during low temperature in the winter time, running time is short, and other times raise because of environment temperature, and steam air heater is stopped transport; But steam air heater still places the air channel during stopping transport, and wind and secondary wind resistance that air washes away that steam air heater tube bank causes still exist, and have increased station service.In view of this, some producers had manufactured and designed rotary or half revolving steam steam air heater puts into operation in recent years, as rotary steam air heater with fixed frame, but, the rotary steam air heater structure heaviness that contains framework, operation inconvenience is easily leaked, 360 ° of full angle rotating operations be can't realize, unit safety, stable and economical operation had a strong impact on and restrict.The Scotch boiler steam air heater that has put into operation at present is in service in addition exists following problem:
1. the steam air heater heating surface that respectively divides into groups is provided with fixed frame, needs because of revolution space between heating surface are provided with the sealing plate that prevents to form the flue gas corridor, the heating surface needs that respectively divide into groups during rotation rotate successively, can not realize the independent rotation of certain one-level heating surface, simultaneously, also can't realize 360 ° of full angle rotating operations;
2. Fen Zu single-stage heating surface is provided with 2 steam inlet tubes, must at first cut off steam during rotation, and behind the adpting flange of dismounting steam inlet, heating surface can rotate, and does not cut off steam and then can't rotate heating surface.
3. the steam air heater project organization is unreasonable, the operation part complex structure, and dismounting and maintenance are difficult for, and have stifled ash, leakage, problems such as fin distortion.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of rotary steam air heater, overcome the independent rotation that can not realize certain one-level heating surface, also can't realize 360 ° of full angle rotating operations, not cut off steam and then can't rotate heating surface and operation part complex structure that dismounting and maintenance are difficult for, and there is stifled ash, leak, the problem of fin distortion, have framelessly exempt to dismantle, can 360 ° of full angle rotary manipulations and advantage easy to maintenance.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of rotary steam air heater, be included in the heating surface bank of even distribution 3-8 outer fin reinforcing in the air channel 6, the two ends of each heating surface bank 7 respectively with the top of the bottom of heavy wall admission collection case 8 corresponding in the air channel 6 and the hydrophobic collection case 5 of heavy wall fixedly conducting be connected, the top of this heavy wall admission collection case 8 is with the connection that is conducted of the end of vertical heavy wall steam inlet pipe 12 as the rotation front axle, vertical heavy wall steam inlet pipe 12 is applied in preceding swivel bearing 9 and the two interference fit at 6 tops, air channel, the other end conducting of vertical heavy wall steam inlet pipe 12 connects steam admission side counter flange 13, be provided with the hermetically sealed rotating disc of admission end mechanism 11 around heavy wall steam inlet pipe 12 outer walls in addition above preceding swivel bearing 9, the hermetically sealed rotating disc of admission end mechanism 11 is provided with hand turnover mechanism 10; And the bottom of the hydrophobic collection case 5 of heavy wall is with the connection that is conducted of the end of heavy wall drain pipe 3 as the rotation rear axle, heavy wall drain pipe 3 runs through back swivel bearing 4 and the two interference fit that is fixed on 6 bottoms, air channel, the other end conducting of heavy wall drain pipe 3 connects hydrophobic side counter flange 1, is provided with the hermetically sealed mechanism 2 in hydrophobic side around heavy wall drain pipe 3 outer walls in addition below the swivel bearing 4 of back.
Described heating surface bank 7 is frameless self supporting structure, and 2-4 the shape equal diameter helical fin of the same size heat-transfer pipe that is connected by vertically concordant from top to bottom and conducting longitudinally constitutes, the central axis of heating surface bank 7 is a vertical direction, and the heat-transfer pipe in the heating surface bank 7 is sparse arrangement.
The hermetically sealed mechanism in the hermetically sealed rotating disc of described admission end mechanism 11 and hydrophobic side 2 inside are provided with the labyrinth sealing system.
Described hand turnover mechanism 10 is substituted by electric turnover mechanism.
Described heating surface bank 7 in the winter time the time its heating surface keep vertical with the air-flow direction in the air channel, its heating surface is with the air-flow direction keeping parallelism in the air channel when summer, spring and autumn its heating surface keep default angle of inclination with the air-flow direction in the air channel.
Described heating surface bank 7 adopts spiral fin coil or the boiler carbon constructional quality steel and the rolling spiral fin coil that is composited of aluminium of welding.
The utility model washes away the heating surface of heating surface bank 7 by the air in the air channel 6, improved the temperature that enters the air preheater air, because reliable whirligig is arranged, can be during shutdown of boiler, the heating surface by rotation heating surface bank 7 makes that heating surface bank 7 planes are parallel with wind direction, form straight-through air channel, reduce wind and secondary wind flowing resistance significantly, reduce drag losses and pressure fan load, save station service; Heating surface bank 7 is frameless self supporting structure, have heating surface of one's own, need not sealing plate between heating surface, guarantee that rotation space-time air-flow is evenly moving, avoid forming air disturbance, increase local resistance, also can prevent the spinning obstacle that heating surface bank 7 gravity deformations bring thus, guarantee that this steam air heater rotates safely and reliably, during heating surface bank 7 rotations, need not to dismantle any parts of steam air heater and just can rotate; The hermetically sealed mechanism in the hermetically sealed rotating disc of admission end mechanism 11 and hydrophobic side 2 inside are provided with the labyrinth sealing system, can guarantee that like this heavy wall steam inlet pipe 12 steam do not leak; Heat-transfer pipe is sparse arrangement, and steam working medium single process in heating surface bank 7 flows, and efficiently solves the distortion of steam air heater fin, and leakage is washed away in the elbow, the difficult problem of run duration dust stratification, stifled foreign material; Increase the phenomenon that auxiliary power consumption increases at run duration pressure fan resistance thereby eliminated steam air heater; Realize that the fault-free in the unit running process switches, do not need the blower fan of stopping transport, can be used as the effective means of wind and secondary wind operation adjustment, help pressure fan and go out the equilibrium of forces adjustment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1, it also is the duty schematic top plan view of heating surface bank of the present utility model, wherein Fig. 2 (a) is the duty schematic top plan view in winter, Fig. 2 (b) is the duty schematic top plan view in summer, Fig. 2 (c) be spring and autumn the duty schematic top plan view, wherein arrow is represented air-flow direction.
The specific embodiment
Below in conjunction with accompanying drawing utility model is described in more detail.
As shown in Figure 1, rotary steam air heater, be included in the heating surface bank 7 of 3 the outer fin reinforcings that evenly distribute in the air channel 6, the two ends of each heating surface bank 7 respectively with the top of the bottom of heavy wall admission collection case 8 corresponding in the air channel 6 and the hydrophobic collection case 5 of heavy wall fixedly conducting be connected, the top of this heavy wall admission collection case 8 is with the connection that is conducted of the end of vertical heavy wall steam inlet pipe 12 as the rotation front axle, vertical heavy wall steam inlet pipe 12 runs through preceding swivel bearing 9 and the two interference fit that is fixed on 6 tops, air channel, the other end conducting of vertical heavy wall steam inlet pipe 12 connects steam admission side counter flange 13, be provided with the hermetically sealed rotating disc of admission end mechanism 11 around heavy wall steam inlet pipe 12 outer walls in addition above preceding swivel bearing 9, the hermetically sealed rotating disc of admission end mechanism 11 is provided with hand turnover mechanism 10; And the bottom of the hydrophobic collection case 5 of heavy wall is with the connection that is conducted of the end of heavy wall drain pipe 3 as the rotation rear axle, heavy wall drain pipe 3 runs through back swivel bearing 4 and the two interference fit that is fixed on 6 bottoms, air channel, the other end conducting of heavy wall drain pipe 3 connects hydrophobic side counter flange 1, is provided with the hermetically sealed mechanism 2 in hydrophobic side around heavy wall drain pipe 3 outer walls in addition below the swivel bearing 4 of back.Described heating surface bank 7 is frameless self supporting structure, and 4 shape equal diameter helical fin of the same size heating surface banks 7 that connected by vertically concordant from top to bottom and conducting longitudinally constitute, the central axis of heating surface bank 7 is a vertical direction, and the heat-transfer pipe in the heating surface bank 7 is sparse arrangement.The hermetically sealed mechanism in the hermetically sealed rotating disc of described admission end mechanism 11 and hydrophobic side 2 inside are provided with the labyrinth sealing system.Described hand turnover mechanism 10 is substituted by electric turnover mechanism.As shown in Figure 2, described heating surface bank 7 in the winter time the time its heating surface keep vertical with the air-flow direction in the air channel, its heating surface is with the air-flow direction keeping parallelism in the air channel when summer, spring and autumn its heating surface keep default angle of inclination with the air-flow direction in the air channel.Described heating surface bank 7 adopts spiral fin coil or the boiler carbon constructional quality steel and the rolling spiral fin coil that is composited of aluminium of welding.
Operation principle of the present utility model is: hot vapour is introduced heavy wall steam inlet pipe 12 by steam admission side counter flange 13, distribute to heating surface bank 7 by heavy wall admission collection case 8, in the heating surface bank 7 of heating surface bank 7 and the air channel 6 after the flow air heat exchange, superheated steam heat release successively is saturated vapor and saturation water, is drawn by heavy wall drain pipe 3.
Claims (6)
1. rotary steam air heater, it is characterized in that: the heating surface bank (7) that is included in even distribution 3-8 outer fin reinforcing in the air channel (6), the bottom of the heavy wall admission collection case (8) of the interior correspondence in same respectively air channels, the two ends of each heating surface bank (7) (6) and the top of the hydrophobic collection case of heavy wall (5) fixedly conducting are connected, the top of this heavy wall admission collection case (8) is with the connection that is conducted of the end of vertical heavy wall steam inlet pipe (12) as the rotation front axle, vertical heavy wall steam inlet pipe (12) runs through preceding swivel bearing (9) and the two interference fit that is fixed on top, air channel (6), the other end conducting of vertical heavy wall steam inlet pipe (12) connects steam admission side counter flange (13), be provided with the hermetically sealed rotating disc of admission end mechanism (11) in preceding swivel bearing (9) top around heavy wall steam inlet pipe (12) outer wall in addition, the hermetically sealed rotating disc of admission end mechanism (11) is provided with hand turnover mechanism (10); And the bottom of the hydrophobic collection case of heavy wall (5) is with the connection that is conducted of the end of heavy wall drain pipe (3) as the rotation rear axle, heavy wall drain pipe (3) runs through back swivel bearing (4) and the two interference fit that is fixed on bottom, air channel (6), the other end conducting of heavy wall drain pipe (3) connects hydrophobic side counter flange (1), is provided with the hermetically sealed mechanism in hydrophobic side (2) in back swivel bearing (4) below around heavy wall drain pipe (3) outer wall in addition.
2. rotary steam air heater according to claim 1, it is characterized in that: described heating surface bank (7) is frameless self supporting structure, and 2-4 the shape equal diameter helical fin of the same size heating surface bank (7) that is connected by vertically concordant from top to bottom and conducting longitudinally constitutes, the central axis of heating surface bank (7) is a vertical direction, and the heat-transfer pipe in the heating surface bank (7) is sparse arrangement.
3. according to claim 1 or the described rotary steam air heater of claim 2, it is characterized in that: hermetically sealed mechanism of the hermetically sealed rotating disc of described admission end mechanism (11) and hydrophobic side (2) inside is provided with the labyrinth sealing system.
4. according to claim 1 or the described rotary steam air heater of claim 2, it is characterized in that: described hand turnover mechanism (10) is substituted by electric turnover mechanism.
5. according to claim 1 or the described rotary steam air heater of claim 2, it is characterized in that: described heating surface bank (7) in the winter time the time its heating surface keep vertical with the air-flow direction in the air channel, its heating surface is with the air-flow direction keeping parallelism in the air channel when summer, spring and autumn its heating surface keep default angle of inclination with the air-flow direction in the air channel.
6. according to claim 1 or the described rotary steam air heater of claim 2, it is characterized in that: described heating surface bank (7) adopts spiral fin coil or the boiler carbon constructional quality steel and the rolling spiral fin coil that is composited of aluminium of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201157276U CN202040831U (en) | 2011-04-19 | 2011-04-19 | Rotary air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201157276U CN202040831U (en) | 2011-04-19 | 2011-04-19 | Rotary air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040831U true CN202040831U (en) | 2011-11-16 |
Family
ID=44968272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201157276U Expired - Fee Related CN202040831U (en) | 2011-04-19 | 2011-04-19 | Rotary air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777925A (en) * | 2012-07-12 | 2012-11-14 | 西安交通大学 | Sealing device of steam admission side of rotary boiler fan heater in steam admission by single pipe |
| CN103363542A (en) * | 2013-07-31 | 2013-10-23 | 无锡市华通电力设备有限公司 | Rotary air heater |
| CN109681904A (en) * | 2019-01-29 | 2019-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of rotary air heater and its adjusting method of hydrophobic side automatic adjustment |
| CN113310068A (en) * | 2021-06-03 | 2021-08-27 | 华能巢湖发电有限责任公司 | Three-way door for adjusting boiler air heater of thermal power plant |
-
2011
- 2011-04-19 CN CN2011201157276U patent/CN202040831U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777925A (en) * | 2012-07-12 | 2012-11-14 | 西安交通大学 | Sealing device of steam admission side of rotary boiler fan heater in steam admission by single pipe |
| CN102777925B (en) * | 2012-07-12 | 2014-11-05 | 西安交通大学 | Sealing device of steam admission side of rotary boiler fan heater in steam admission by single pipe |
| CN103363542A (en) * | 2013-07-31 | 2013-10-23 | 无锡市华通电力设备有限公司 | Rotary air heater |
| CN109681904A (en) * | 2019-01-29 | 2019-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of rotary air heater and its adjusting method of hydrophobic side automatic adjustment |
| CN109681904B (en) * | 2019-01-29 | 2024-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Rotary type heater with automatically-adjusted drainage side and adjusting method thereof |
| CN113310068A (en) * | 2021-06-03 | 2021-08-27 | 华能巢湖发电有限责任公司 | Three-way door for adjusting boiler air heater of thermal power plant |
| CN113310068B (en) * | 2021-06-03 | 2024-01-26 | 华能巢湖发电有限责任公司 | Three-way door for adjusting boiler air heater of thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202040831U (en) | Rotary air heater | |
| CN105115315B (en) | One kind energy-conservation closed cooling tower | |
| CN102537994A (en) | Device for eliminating flue gas temperature deviation | |
| CN101706109B (en) | Embedded deep cooler for boiler flue gas | |
| CN105526815B (en) | The gas phase rotary heat exchanger supporting with grain drier | |
| CN203478168U (en) | Steam and waste heat converting boiler | |
| CN208398688U (en) | A kind of gas heat exchanger convenient for extracting heat exchanger tube | |
| CN102162647A (en) | Frameless detachment-free rotary air heater | |
| CN201513909U (en) | Boiler fume deep cooler | |
| CN202002514U (en) | Self-expansion low-temperature draining type heating network heater | |
| CN202675972U (en) | Phase change heat exchanger with self-soot-blowing function | |
| CN201531899U (en) | Power station boiler dynamic air heater | |
| CN215864795U (en) | Energy-saving axial space-variable flue gas condenser | |
| CN201779685U (en) | Energy-saving anti-blockage steam air heater | |
| CN104359223B (en) | System and method using exhaust steam in steam turbine as steam air heater of utility boiler thermal medium | |
| CN106931420A (en) | Smoke and waste steam boiler | |
| CN202853139U (en) | Novel high-efficiency corrosion-resistant split type solar water heater | |
| CN210154372U (en) | Novel heat exchanger with high heat exchange efficiency and easy installation for vacuum furnace | |
| CN203413666U (en) | Rotary air heater | |
| CN207019035U (en) | Smoke and waste steam boiler | |
| CN209445845U (en) | A kind of heat exchanger apparatus for high-temperature molten salt convective heat transfer | |
| CN203139650U (en) | Cylinder-type rotary evaporator | |
| CN203413665U (en) | Steam air heater single fin of rotary steam air heater | |
| CN205537164U (en) | Flue gas waste heat recovery device for sintering machine | |
| CN204313486U (en) | System using exhaust steam in steam turbine as steam air heater of utility boiler thermal medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710049 Xianning Road, Shaanxi, China, No. 28, No. Patentee after: Xi'an Jiaotong University Patentee after: Qingdao Daneng Environmental Protection Equipment Incorporated Company Address before: 710049 Xianning Road, Shaanxi, China, No. 28, No. Patentee before: Xi'an Jiaotong University Patentee before: Qingdao Daneng Environmental Protection Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20160419 |