CN103363542A - Rotary air heater - Google Patents
Rotary air heater Download PDFInfo
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- CN103363542A CN103363542A CN2013103287403A CN201310328740A CN103363542A CN 103363542 A CN103363542 A CN 103363542A CN 2013103287403 A CN2013103287403 A CN 2013103287403A CN 201310328740 A CN201310328740 A CN 201310328740A CN 103363542 A CN103363542 A CN 103363542A
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- air heater
- steam
- header
- front axle
- heating surface
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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 invention relates to a rotary air heater, which comprises a frame and a plurality of air heater single sheets arranged in the frame, and is characterized in that: the single fan heater comprises a front shaft, a rear shaft and a heat exchange assembly, wherein the front shaft and the rear shaft are respectively fixed at the vertical middle shaft positions at the two ends of the heat exchange assembly; the front shaft is connected with a steam inlet pipe through a rotary joint, the rear shaft is provided with a drainage joint, and the drainage joint is connected with a drain pipe through a metal hose; the front shafts of every two single fans of the air heater are connected with a driving device through a connecting rod mechanism, and the driving device controls the front shafts of the two single fans of the air heater to synchronously rotate through the connecting rod mechanism. The invention has the advantages of ingenious structure and reasonable design, solves the problem of low efficiency caused by large wind resistance when the air heater is put into operation, can effectively reduce the current of the air feeder, is energy-saving and environment-friendly, reduces the maintenance cost, and is more practical.
Description
Technical field
The present invention relates to a kind of steam air heater, relate in particular to a kind of New Rotary steam air heater that is applied in the Industrial Boiler entrance hot air duct.
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 Air 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-end air generation sulfuric acid dewfall causes, cause the stifled ash of air preheater cold-end air 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.
Wind and Secondary Air that heat power plant boiler when operation be general adopts low-pressure steam to draw gas to the air preheater entrance carry out the preheating heating, the arrangement of steam air heater in the air channel generally is fixed, steam air heater generally comprises a framework and is installed in the interior a plurality of steam air heater monolithics of framework, framework is that integral body is fixed on the air preheater porch, leaves the space between the steam air heater monolithic.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 Air resistance that air washes away that steam air heater tube bank causes still exist, and have increased station service.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of rotary air heater is provided, its structure is ingenious, reasonable in design, solved the low problem of the efficient that causes greatly because of wind resistance when steam air heater is devoted oneself to work, can effectively reduce the pressure fan electric current, energy-conserving and environment-protective, minimizing maintenance cost are more practical.
According to technical scheme provided by the invention, rotary air heater, comprise framework and be installed in the interior a plurality of steam air heater monolithics of framework, it is characterized in that: described steam air heater monolithic comprises front axle, rear axle and heat-exchanging component, front axle, rear axle are separately fixed at the vertical central axis position at heat-exchanging component two ends, described front axle supporting is installed on the steam side frame of framework, and described rear axle supporting is installed on the hydrophobic side frame of framework, and front axle and rear axle communicate with heat-exchanging component inside respectively; Described front axle is connected with the steam steam inlet pipe by swivel joint, and described rear axle is provided with hydrophobic joint, and hydrophobic joint is connected with drainpipe by metal hose; The front axle of per two steam air heater monolithics is connected with drive unit by linkage, drive unit is by the front axle synchronous rotary of two steam air heater monolithics of linkage control, and then control steam air heater monolithic is changed being parallel between frame plane and two angles perpendicular to frame plane.
As a further improvement on the present invention, described steam air heater monolithic comprises front axle, rear axle, inlet steam header, heating surface bank, tube bank fixed head and hydrophobic header; Several heating surface banks are arranged in parallel and fix by the tube bank fixed head, the two ends of heating surface bank respectively with inlet steam header be connected header and be connected and communicate; Described front axle is installed in the vertical central axis position of inlet steam header, the front axle inner hollow and with the inlet steam header internal communication; Described rear axle is installed in the vertical central axis position of hydrophobic header, the rear axle inner hollow and with hydrophobic header internal communication.
As a further improvement on the present invention, described inlet steam header mainly is comprised of half sheet seamless steel pipe, end plate and tube sheet, half sheet seamless steel pipe is connected sealing along the both sides of axis direction with the both sides of tube sheet, the two ends of half sheet seamless steel pipe and tube sheet seal by end plate, tube sheet is provided with the through hole consistent with heating surface bank quantity, and heating surface bank through hole inner and on the tube sheet is connected; The structure of described hydrophobic header is identical with inlet steam header.
As a further improvement on the present invention, the connecting portion of the connecting portion of described front axle and inlet steam header, rear axle and hydrophobic header is provided with stiffening ring.
As a further improvement on the present invention, described stiffening ring is that the cross section is half sheet pipe of circular arc, and central angle corresponding to half sheet pipe dual-side is 120 °.
As a further improvement on the present invention, the periphery wall of described heating surface bank is provided with a plurality of helical fins of evenly arranging along the heating surface bank axis direction.
As a further improvement on the present invention, described heating surface bank adopts the steel combined with aluminum material to make.
As a further improvement on the present invention, described linkage comprises gangbar, driving shaft crank and power transmission shaft crank, driving shaft crank one end is fixed on the output driving shaft of drive unit, the middle part of driving shaft crank other end hinge gangbar, the two ends of described gangbar are hinged with an end of power transmission shaft crank respectively, and the other end of power transmission shaft crank is fixedly connected on the front axle of steam air heater monolithic.
The present invention compared with prior art, advantage is:Structure of the present invention is ingenious, and is reasonable in design, solved the low problem of the efficient that causes greatly because of wind resistance when steam air heater is devoted oneself to work, and can effectively reduce the pressure fan electric current, and energy-conserving and environment-protective, minimizing maintenance cost are more practical.
Description of drawings
Fig. 1 is the structural front view of the embodiment of the invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the structural front view of the steam air heater monolithic in the embodiment of the invention.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the top view of Fig. 4.
Fig. 7 is that A-A among Fig. 4 is to partial sectional view.
Fig. 8 is that B-B among Fig. 4 is to cutaway view.
Fig. 9 is the structural representation of the swivel joint in the embodiment of the invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: the rotary air heater among the embodiment mainly is comprised of framework 1 and a plurality of steam air heater monolithics 2 that are installed in the framework 1; Described steam air heater monolithic 2 mainly is comprised of front axle 2.1, rear axle 2.2 and heat-exchanging component, front axle 2.1, rear axle 2.2 are separately fixed at the vertical central axis position at heat-exchanging component two ends, described front axle 2.1 supportings are installed on the steam side frame 1.1 of framework 1, described rear axle 2.2 supportings are installed on the hydrophobic side frame 1.2 of framework 1, and front axle 2.1 and rear axle 2.2 communicate with heat-exchanging component inside respectively; Described front axle 2.1 is connected with the steam steam inlet pipe by swivel joint 3, and described rear axle 2.2 is provided with hydrophobic joint 2.3, and hydrophobic joint 2.3 is connected with drainpipe by metal hose; The front axle 2.1 of per two steam air heater monolithics 2 is connected with drive unit 4 by linkage, drive unit 4 is by front axle 2.1 synchronous rotaries of two steam air heater monolithics 2 of linkage control, and then control steam air heater monolithic 2 is changed being parallel between framework 1 plane and two angles perpendicular to framework 1 plane.
Among the present invention, the structure of described steam air heater monolithic 2 such as Fig. 4 ~ shown in Figure 8, it mainly is comprised of front axle 2.1, rear axle 2.2, inlet steam header 2.5, heating surface bank 2.6, tube bank fixed head 2.7 and hydrophobic header 2.8; Several heating surface banks 2.6 are arranged in parallel and are fixing by tube bank fixed head 2.7, the two ends of heating surface bank 2.6 respectively with inlet steam header 2.5 be connected header 2.8 and be connected and communicate; Described front axle 2.1 is installed in the vertical central axis position of inlet steam header 2.5, front axle 2.1 inner hollow and with inlet steam header 2.5 internal communication; Described rear axle 2.2 is installed in the vertical central axis position of hydrophobic header 2.8, rear axle 2.2 inner hollow and with hydrophobic header 2.8 internal communication.
In the embodiment of the invention, described inlet steam header 2.5 mainly is comprised of half sheet seamless steel pipe 2.4a, end plate 2.4c and tube sheet 2.4b, half sheet seamless steel pipe 2.4a is connected sealing along the both sides of axis direction with the both sides of tube sheet 2.4b, the two ends of half sheet seamless steel pipe 2.4a and tube sheet 2.4b are by end plate 2.4c sealing, tube sheet 2.4b is provided with the through hole consistent with heating surface bank 2.6 quantity, and heating surface bank 2.6 through holes inner and on the tube sheet 2.4b are connected; The structure of described hydrophobic header 2.8 is identical with inlet steam header 2.5, so locate do not giving unnecessary details.
In order to improve the structural strength of steam air heater monolithic 2, described front axle 2.1 is provided with stiffening ring 2.4 with connecting portion, the rear axle 2.2 of inlet steam header 2.5 with the connecting portion of hydrophobic header 2.8.Described stiffening ring 2.4 is that the cross section is half sheet pipe of circular arc, and central angle corresponding to half sheet pipe dual-side is 120 °.
In order to ensure the heat transfer efficiency of steam air heater monolithic 2, the periphery wall of described heating surface bank 2.6 is provided with a plurality of helical fins 2.9 of evenly arranging along heating surface bank 2.6 axis directions.And the heating surface bank 2.6 preferred steel combined with aluminum materials that adopt are made.
In the embodiment of the invention, described linkage mainly is comprised of gangbar 5, driving shaft crank 6 and power transmission shaft crank 7, driving shaft crank 6 one ends are fixed on the output driving shaft of drive unit 4, the middle part of driving shaft crank 6 other end hinge gangbar 5, the two ends of described gangbar 5 are hinged with an end of power transmission shaft crank 7 respectively, and the other end of power transmission shaft crank 7 is fixedly connected on the front axle 2.1 of steam air heater monolithic 2.Among the present invention, described drive unit 4 can directly adopt the outsourcing product, as adopting the drive structure of gear worm that is equipped with handwheel, can drive the output driving shaft that gangbar 5 swings as long as it possesses one.
In the embodiment of the invention, described swivel joint 3 also can adopt conventional products of the prior art, a kind of swivel joint 3 as shown in Figure 9 is provided in the embodiment of the invention, it is mainly by swivel joint letter 3.1, rotating shaft 3.2, gland 3.3, fastening connection piece 3.4, filler 3.5 and air intake flange 3.6 form, described swivel joint letter 3.1 is used for being connected with the flange that is rotatably connected of front axle 2.1 ends, rotating shaft 3.2 1 ends insert in the swivel joint letter 3.1, filler 3.5 is filled between rotating shaft 3.2 outer walls and swivel joint letter 3.1 inwalls and by gland 3.3 and compresses encapsulation, gland 3.3 is connected on the swivel joint letter 3.1 by fastening connection piece 3.4, air intake flange 3.6 is connected to rotating shaft 3.2 other ends, and air intake flange 3.6 is used for being connected with the steam steam inlet pipe.
The course of work of the present invention is as follows:
When needs used steam air heater, operation drive unit 4 was in steam air heater monolithic 2 to be parallel to framework 1 flat state, steam air heater monolithic 2 fronts to be met to the direction of the wind comes from [among Fig. 6 shown in the arrow].Steam enters in the inlet steam header 2.5 by the front axle 2.1 of steam steam inlet pipe through steam air heater monolithic 2, then enter heating surface bank 2.6 by the through hole on the inlet steam header 2.5, with the heat transferred helical fin 2.9 in the steam, thereby the warm braw effect is played in the heating of the wind of the heating surface bank 2.6 of will flowing through.Steam-condensation after the heat release is hydrophobic, and then the hydrophobic header 2.8 of hydrophobic inflow drains into drainpipe through rear axle 2.2, hydrophobic joint 2.3 and metal hose.
When needs were stopped using steam air heater, operation drive unit 4 made steam air heater monolithic 2 half-twists, is in perpendicular to framework 1 flat state, and steam air heater monolithic 2 fronts get final product perpendicular to the direction of the wind comes from.
Claims (9)
1. rotary air heater, comprise framework (1) and be installed in the interior a plurality of steam air heater monolithics (2) of framework (1), it is characterized in that: described steam air heater monolithic (2) comprises front axle (2.1), rear axle (2.2) and heat-exchanging component, front axle (2.1), rear axle (2.2) is separately fixed at the vertical central axis position at heat-exchanging component two ends, described front axle (2.1) supporting is installed on the steam side frame (1.1) of framework (1), described rear axle (2.2) supporting is installed on the hydrophobic side frame (1.2) of framework (1), and front axle (2.1) and rear axle (2.2) communicate with heat-exchanging component inside respectively; Described front axle (2.1) is connected with the steam steam inlet pipe by swivel joint (3), and described rear axle (2.2) is provided with hydrophobic joint (2.3), and hydrophobic joint (2.3) is connected with drainpipe by metal hose; The front axle (2.1) of per two steam air heater monolithics (2) is connected with drive unit (4) by linkage, drive unit (4) is by front axle (2.1) synchronous rotary of two steam air heater monolithics of linkage control (2), and then control steam air heater monolithic (2) is changed being parallel between framework (1) plane and two angles perpendicular to framework (1) plane.
2. rotary air heater as claimed in claim 1 is characterized in that: described steam air heater monolithic (2) comprises front axle (2.1), rear axle (2.2), inlet steam header (2.5), heating surface bank (2.6), tube bank fixed head (2.7) and hydrophobic header (2.8); Several heating surface banks (2.6) are arranged in parallel and are fixing by tube bank fixed head (2.7), the two ends of heating surface bank (2.6) respectively with inlet steam header (2.5) be connected header (2.8) and be connected and communicate; Described front axle (2.1) is installed in the vertical central axis position of inlet steam header (2.5), front axle (2.1) inner hollow and with inlet steam header (2.5) internal communication; Described rear axle (2.2) is installed in the vertical central axis position of hydrophobic header (2.8), rear axle (2.2) inner hollow and with hydrophobic header (2.8) internal communication.
3. rotary air heater as claimed in claim 1, it is characterized in that: described inlet steam header (2.5) mainly is by half sheet seamless steel pipe (2.4a), end plate (2.4c) and tube sheet (2.4b) form, half sheet seamless steel pipe (2.4a) is connected sealing along the both sides of axis direction with the both sides of tube sheet (2.4b), the two ends of half sheet seamless steel pipe (2.4a) and tube sheet (2.4b) are by end plate (2.4c) sealing, tube sheet (2.4b) is provided with the through hole consistent with heating surface bank (2.6) quantity, and heating surface bank (2.6) through hole inner and on the tube sheet (2.4b) is connected; The structure of described hydrophobic header (2.8) is identical with inlet steam header (2.5).
4. rotary air heater as claimed in claim 1 is characterized in that: described front axle (2.1) is provided with stiffening ring (2.4) with connecting portion, the rear axle (2.2) of inlet steam header (2.5) with the connecting portion of hydrophobic header (2.8).
5. rotary air heater as claimed in claim 4, it is characterized in that: described stiffening ring (2.4) is that the cross section is half sheet pipe of circular arc, and central angle corresponding to half sheet pipe dual-side is 120 °.
6. rotary air heater as claimed in claim 1, it is characterized in that: the periphery wall of described heating surface bank (2.6) is provided with a plurality of helical fins (2.9) of evenly arranging along heating surface bank (2.6) axis direction.
7. rotary air heater as claimed in claim 1 is characterized in that: described heating surface bank (2.6) adopts the steel combined with aluminum material to make.
8. rotary air heater as claimed in claim 1, it is characterized in that: described linkage comprises gangbar (5), driving shaft crank (6) and power transmission shaft crank (7), driving shaft crank (6) one ends are fixed on the output driving shaft of drive unit (4), the middle part of driving shaft crank (6) other end hinge gangbar (5), the two ends of described gangbar (5) are hinged with an end of power transmission shaft crank (7) respectively, the other end of power transmission shaft crank (7) is fixedly connected on the front axle (2.1) of steam air heater monolithic (2).
9. rotary air heater as claimed in claim 1, it is characterized in that: described swivel joint (3) comprises swivel joint letter (3.1), rotating shaft (3.2), gland (3.3), fastening connection piece (3.4), filler (3.5) and air intake flange (3.6), described swivel joint letter (3.1) is used for being connected with the flange that is rotatably connected of front axle (2.1) end, rotating shaft (3.2) one ends insert in the swivel joint letter (3.1), filler (3.5) is filled between rotating shaft (3.2) outer wall and swivel joint letter (3.1) inwall and by gland (3.3) and compresses encapsulation, gland (3.3) is connected on the swivel joint letter (3.1) by fastening connection piece (3.4), air intake flange (3.6) is connected to rotating shaft (3.2) other end, and air intake flange (3.6) is used for being connected with the steam steam inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103287403A CN103363542A (en) | 2013-07-31 | 2013-07-31 | Rotary air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103287403A CN103363542A (en) | 2013-07-31 | 2013-07-31 | Rotary air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363542A true CN103363542A (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103287403A Pending CN103363542A (en) | 2013-07-31 | 2013-07-31 | Rotary air heater |
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| CN (1) | CN103363542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2620140C1 (en) * | 2016-01-26 | 2017-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Method of cleaning of steam boiler air-heaters |
| CN114263927A (en) * | 2022-03-02 | 2022-04-01 | 山西昌德大成科技有限公司 | Air heater device based on gravity heat pipe and configuration method of gravity heat pipe bundle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58123022A (en) * | 1982-01-14 | 1983-07-22 | Mitsubishi Heavy Ind Ltd | Waste gas heat recovery system for pulp mill wastewater-burning boiler |
| CN200979291Y (en) * | 2006-12-08 | 2007-11-21 | 陆纪清 | Air warmer for power plant boiler |
| CN201425315Y (en) * | 2009-04-29 | 2010-03-17 | 无锡市华通环保设备有限公司 | Energy-saving rotary louver heater |
| CN201779685U (en) * | 2010-08-03 | 2011-03-30 | 山东泓奥电力科技有限公司 | Energy-saving anti-blockage steam air heater |
| CN202040831U (en) * | 2011-04-19 | 2011-11-16 | 西安交通大学 | A rotary heater |
| CN203413666U (en) * | 2013-07-31 | 2014-01-29 | 无锡市华通电力设备有限公司 | Rotary air heater |
-
2013
- 2013-07-31 CN CN2013103287403A patent/CN103363542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58123022A (en) * | 1982-01-14 | 1983-07-22 | Mitsubishi Heavy Ind Ltd | Waste gas heat recovery system for pulp mill wastewater-burning boiler |
| CN200979291Y (en) * | 2006-12-08 | 2007-11-21 | 陆纪清 | Air warmer for power plant boiler |
| CN201425315Y (en) * | 2009-04-29 | 2010-03-17 | 无锡市华通环保设备有限公司 | Energy-saving rotary louver heater |
| CN201779685U (en) * | 2010-08-03 | 2011-03-30 | 山东泓奥电力科技有限公司 | Energy-saving anti-blockage steam air heater |
| CN202040831U (en) * | 2011-04-19 | 2011-11-16 | 西安交通大学 | A rotary heater |
| CN203413666U (en) * | 2013-07-31 | 2014-01-29 | 无锡市华通电力设备有限公司 | Rotary air heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2620140C1 (en) * | 2016-01-26 | 2017-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Method of cleaning of steam boiler air-heaters |
| CN114263927A (en) * | 2022-03-02 | 2022-04-01 | 山西昌德大成科技有限公司 | Air heater device based on gravity heat pipe and configuration method of gravity heat pipe bundle |
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Application publication date: 20131023 |