CN214406138U - Air preheater anti-blocking structure capable of introducing hot air in sections - Google Patents
Air preheater anti-blocking structure capable of introducing hot air in sections Download PDFInfo
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- CN214406138U CN214406138U CN202022599976.9U CN202022599976U CN214406138U CN 214406138 U CN214406138 U CN 214406138U CN 202022599976 U CN202022599976 U CN 202022599976U CN 214406138 U CN214406138 U CN 214406138U
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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 discloses a hot-blast air preheater prevents stifled structure is introduced to segmentation, belong to the air preheater field, it is poor to current air preheater protection effect, the problem that life is low, it includes the flue, the opening has been seted up to the right-hand member of flue, the right-hand member fixed mounting of flue has the overgrate air upper hose, pipeline and overgrate air lower hose under the overgrate air, pipeline and overgrate air upper hose all are located the same level position in opening top, pipeline and overgrate air lower hose all are located the same level position in opening below, the right-hand member of flue just is located the fixed position between pipeline and the opening under the grate air and installs the motor, the output shaft fixedly connected with motor shaft of motor, the upper end fixed mounting of motor shaft has the air preheater, the left end activity of air preheater runs through in the opening, and extend to inside the flue. The utility model discloses the protection is effectual, and life is high, and it is effectual to circulate, can prevent that the air preheater from causing the jam, and the practicality is high.
Description
Technical Field
The utility model relates to an air preheater field especially relates to a hot-blast air preheater prevents stifled structure is introduced to segmentation.
Background
The air preheater is also called air preheater for short, is a preheating device for improving the heat exchange performance of the boiler and reducing the heat loss, and is mainly used for coal-fired power plant boilers. The rotary type air conditioner can be divided into a pipe box type and a rotary type, wherein the rotary type air conditioner is divided into a fan cover rotary type and a heating surface rotary type. Current hot air circulating system introduces air preheater cold junction with hot once or overgrate air from hot junction air preheater, because cold junction temperature risees suddenly, and then causes the damage to air preheater internal component, influences life to the low ammonium bisulfate that also forms very easily of cold junction comprehensive temperature deposits on air preheater heat transfer element and then causes the jam to the air preheater, and then provides a hot-blast air preheater anti-blocking structure of segmentation introduction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a reasonable in design's segmentation and introduce hot-blast air preheater and prevent stifled structure, solved current hot air circulating system and once or overgrate air and introduce the air preheater cold junction from the hot junction air preheater, because the cold junction temperature suddenly risees, and then causes the damage to air preheater internal component, influences life, and the cold junction is synthesized the low sedimentary problem of easily forming ammonium bisulfate of temperature.
The utility model provides a technical scheme that above-mentioned problem adopted is: the anti-blocking structure of the air preheater for introducing hot air in sections comprises a flue and is characterized in that an opening is formed in the right end of the flue, a primary air upper pipeline, a secondary air upper pipeline, a primary air lower pipeline and a secondary air lower pipeline are fixedly mounted at the right end of the flue, the primary air upper pipeline and the secondary air upper pipeline are located at the same horizontal height position above the opening, the primary air upper pipeline is located at the front side of the secondary air upper pipeline, the primary air lower pipeline and the secondary air lower pipeline are located at the same horizontal height position below the opening, the primary air lower pipeline is located at the front side of the secondary air lower pipeline, a motor is fixedly mounted at the right end of the flue and located between the primary air lower pipeline and the opening, a motor shaft is fixedly connected to an output shaft of the motor, an air preheater is fixedly mounted at the upper end of the motor shaft, and the left end of the air preheater movably penetrates through the opening, and extend to inside the flue, the fixed intercommunication of the right-hand member of pipeline has first pipeline on the primary air, the fixed intercommunication of the right-hand member of pipeline has two second pipelines on the secondary air, the lower extreme of first pipeline and two second pipelines all is fixed the intercommunication has the air-supply line, and is three the other end of air-supply line all runs through pipeline under the secondary air to extend to pipeline's under the secondary air inside, and the inner wall fixed connection who just passes through pipeline under three bracing piece and the secondary air respectively, it is three the other end of air-supply line all is fixed the intercommunication has the air-out pipeline, the air-out pipeline is located pipeline's under the secondary air inside, all install the fan on first pipeline and two second pipelines.
Furthermore, the left ends of the primary air lower pipeline and the secondary air lower pipeline are fixedly connected with the right end of the flue through two first mounting rods respectively.
Furthermore, the left ends of the primary air upper pipeline and the secondary air upper pipeline are fixedly connected with the right end of the flue through two second mounting rods respectively.
Furthermore, solenoid valves are installed on the first pipeline and the two second pipelines.
Further, the motor is fixed with the flue through the motor frame.
Compared with the prior art, the utility model, have following advantage and effect: the cold end of the air preheater can be gradually heated and preheated by arranging the air outlet pipeline, the air inlet pipe, the secondary air lower pipeline, the electromagnetic valve, the fan, the first pipeline, the primary air upper pipeline, the secondary air upper pipeline, the second pipeline, the primary air lower pipeline and the like, so that the defect that the service life of the air preheater is influenced due to the fact that the temperature of the cold end of the air preheater is suddenly increased to cause the heat exchange element to deform due to the fact that the temperature of the cold end of the air preheater is greatly increased at the moment when the cold end of the air preheater enters the flue can be avoided; and the utility model discloses can carry out circulation recycle to hot-blast, energy-conservation nature is good. The utility model discloses the protection is effectual, and life is high, and it is effectual to circulate, can prevent that the air preheater from causing the jam, and the practicality is high.
Drawings
Fig. 1 is the sectional view of the front view structure of the anti-blocking structure of the air preheater for introducing hot air in sections of the utility model.
Fig. 2 is the top view structure diagram of the anti-blocking structure of the air preheater for introducing hot air in sections of the present invention.
Fig. 3 is the structure schematic diagram of the utility model discloses the air preheater that the hot-blast air of well segmentation was introduced prevents the right side of stifled structure.
In the figure: flue 1, motor shaft 2, motor 3, first installation pole 4, bracing piece 5, air-out pipeline 6, air-supply line 7, overgrate air lower pipeline 8, solenoid valve 9, fan 10, first pipeline 11, primary air upper pipeline 12, overgrate air upper pipeline 13, opening 14, air preheater 15, second installation pole 16, second pipeline 17, primary air lower pipeline 18, motor frame 19.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1 to 3, an air preheater anti-blocking structure for introducing hot air in a segmented manner comprises a flue 1, a through opening 14 is formed at the right end of the flue 1, a primary air upper pipeline 12, a secondary air upper pipeline 13, a primary air lower pipeline 18 and a secondary air lower pipeline 8 are fixedly installed at the right end of the flue 1, the primary air upper pipeline 12 and the secondary air upper pipeline 13 are both located at the same horizontal height position above the through opening 14, the primary air upper pipeline 12 is located at the front side of the secondary air upper pipeline 13, the primary air lower pipeline 18 and the secondary air lower pipeline 8 are both located at the same horizontal height position below the through opening 14, the primary air lower pipeline 18 is located at the front side of the secondary air lower pipeline 8, a motor 3 is fixedly installed at the right end of the flue 1 and at a position between the primary air lower pipeline 18 and the through opening 14, a motor shaft 2 is fixedly connected to an output shaft of the motor 3, and an air preheater 15 is fixedly installed at the upper end of the motor shaft 2, the left end activity of air preheater 15 runs through in opening 14, and extend to inside 1 flue, the fixed intercommunication of the right-hand member of pipeline 12 has first pipeline 11 on the primary air, the fixed intercommunication of the right-hand member of pipeline 13 has two second pipelines 17 on the overgrate air, the lower extreme of first pipeline 11 and two second pipelines 17 all fixes the intercommunication has air-supply line 7, the other end of three air-supply line 7 all runs through in overgrate air lower tube 8, and extend to inside of overgrate air lower tube 8, and respectively through the inner wall fixed connection of three bracing piece 5 and overgrate air lower tube 8, the other end of three air-supply line 7 all fixes the intercommunication and has air-out pipeline 6, air-out pipeline 6 is located inside of overgrate air lower tube 8, all install fan 10 on first pipeline 11 and two second pipelines 17.
Specifically, the left ends of the primary air lower pipeline 18 and the secondary air lower pipeline 8 are respectively fixedly connected with the right end of the flue 1 through two first mounting rods 4. Through the design, the primary air lower pipeline 18 and the secondary air lower pipeline 8 can be conveniently and stably fixed.
Specifically, the left ends of the primary air upper pipeline 12 and the secondary air upper pipeline 13 are respectively fixedly connected with the right end of the flue 1 through two second mounting rods 16. Through the design, the primary air upper pipeline 12 and the secondary air upper pipeline 13 can be conveniently and stably fixed.
Specifically, the solenoid valves 9 are mounted on the first pipeline 11 and the two second pipelines 17. Through the design, the switch of the first pipeline 11 and the second pipeline 17 can be controlled conveniently.
Specifically, the motor 3 is fixed to the flue 1 through a motor frame 19. Through the above design, the motor 3 can be conveniently and stably fixed.
The working method comprises the following steps: firstly, the motor 3 is started, the motor 3 drives the air preheater 15 to rotate clockwise through the motor shaft 2 when working, the air preheater 15 is positioned at the left end of the inner part of the flue 1 and leaves the flue 1 through the through hole 14 after absorbing heat, the left end of the air preheater 15 rotates to be right above the primary air lower pipeline 18 and the secondary air lower pipeline 8 in sequence and then returns to the inside of the flue 1, an operator can introduce natural wind into the primary air lower pipeline 18 and the secondary air lower pipeline 8 (the end, far away from the air preheater 15, of the primary air lower pipeline 18 and the secondary air lower pipeline 8 is externally connected with a fan-in the prior art), the natural wind in the primary air lower pipeline 18 blows to the air preheater 15, the heat of the air preheater 15 can be blown into the primary air upper pipeline 12, the natural wind in the secondary air lower pipeline 8 blows to the air preheater 15 and enters the secondary air upper pipeline 13, and then the electromagnetic valve 9 is opened, and starting the fan 10, wherein the fan 10 works, hot air in a primary air upper pipeline 12 and a secondary air upper pipeline 13 can be guided into the air inlet pipe 7 through a first pipeline 11 and a second pipeline 17, hot air in the air inlet pipe 7 enters a secondary air lower pipeline 8 through the air outlet pipeline 6, and hot air is blown into the air preheater 15 through the secondary air lower pipeline 8, so that the cold end part of the air preheater 15, which is about to enter the flue 1, can be preheated, when the cold end of the air preheater 15 enters the flue 1, the cold end part has higher temperature, and cannot become hot suddenly, the cold end temperature of the air preheater 15 can not rise greatly instantly to cause deformation of a heat exchange element, carbon dioxide particles can not be formed to block the air preheater 15, and the hot air can be recycled. By arranging the air outlet pipeline 6, the air inlet pipe 7, the secondary air lower pipeline 8, the electromagnetic valve 9, the fan 10, the first pipeline 11, the primary air upper pipeline 12, the secondary air upper pipeline 13, the second pipeline 17, the primary air lower pipeline 18 and the like, the cold end of the air preheater 15 can be gradually heated and preheated, so that the defects that the cold end of the air preheater 15 is suddenly increased in temperature when entering the flue 1, the temperature of the cold end of the air preheater 15 is greatly increased instantly to cause deformation of a heat exchange element, carbon dioxide particles are formed to further block the air preheater 15, and the service life of the air preheater 15 is influenced are avoided; and the utility model discloses can carry out circulation recycle to hot-blast, energy-conservation nature is good. The utility model discloses the protection is effectual, and life is high, and it is effectual to circulate, can prevent that air preheater 15 from causing the jam, and the practicality is high.
Those not described in detail in this specification are well within the skill of the art.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a hot-blast air preheater anti-blocking structure is introduced to segmentation, includes flue (1), its characterized in that, opening (14) have been seted up to the right-hand member of flue (1), the right-hand member fixed mounting of flue (1) has pipeline (12) on the primary air, pipeline (13) on the overgrate air, pipeline (18) and overgrate air lower tube way (8) under the primary air, pipeline (12) on the primary air and overgrate air upper tube way (13) all are located the same level position in opening (14) top, pipeline (12) are located the front side of pipeline (13) on the overgrate air, pipeline (18) and overgrate air lower tube way (8) all are located the same level position in opening (14) below, pipeline (18) are located the front side of pipeline (8) under the secondary air, the right-hand member of flue (1) just is located the position fixed mounting between pipeline (18) and opening (14) under the primary air has motor (3), the air preheater is characterized in that an output shaft of the motor (3) is fixedly connected with a motor shaft (2), an air preheater (15) is fixedly installed at the upper end of the motor shaft (2), the left end of the air preheater (15) movably penetrates through a through hole (14) and extends into a flue (1), a first pipeline (11) is fixedly communicated with the right end of a primary air upper pipeline (12), two second pipelines (17) are fixedly communicated with the right end of a secondary air upper pipeline (13), the lower ends of the first pipeline (11) and the two second pipelines (17) are fixedly communicated with air inlet pipes (7), the other ends of the three air inlet pipes (7) respectively penetrate through a secondary air lower pipeline (8) and extend into the secondary air lower pipeline (8) and are fixedly connected with the inner wall of the secondary air lower pipeline (8) through three support rods (5), and air outlet pipelines (6) are fixedly communicated with the other ends of the three air inlet pipes (7), the air outlet pipeline (6) is positioned inside the secondary air lower pipeline (8).
2. The air preheater anti-blocking structure for introducing hot air in sections according to claim 1, wherein the left ends of the primary air lower pipeline (18) and the secondary air lower pipeline (8) are fixedly connected with the right end of the flue (1) through two first mounting rods (4) respectively.
3. The air preheater anti-blocking structure for introducing hot air in sections according to claim 1, wherein the left ends of the primary air upper pipeline (12) and the secondary air upper pipeline (13) are fixedly connected with the right end of the flue (1) through two second mounting rods (16).
4. The air preheater anti-blocking structure for introducing hot air in sections according to claim 1, wherein fans (10) are mounted on the first pipeline (11) and the two second pipelines (17).
5. The air preheater anti-blocking structure for sectionally introducing hot air according to claim 1 or 4, wherein the first pipeline (11) and the two second pipelines (17) are respectively provided with an electromagnetic valve (9).
6. The air preheater anti-blocking structure for introducing hot air in sections according to claim 1, wherein the motor (3) is fixed with the flue (1) through a motor frame (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022599976.9U CN214406138U (en) | 2020-11-11 | 2020-11-11 | Air preheater anti-blocking structure capable of introducing hot air in sections |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022599976.9U CN214406138U (en) | 2020-11-11 | 2020-11-11 | Air preheater anti-blocking structure capable of introducing hot air in sections |
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| CN214406138U true CN214406138U (en) | 2021-10-15 |
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| CN202022599976.9U Active CN214406138U (en) | 2020-11-11 | 2020-11-11 | Air preheater anti-blocking structure capable of introducing hot air in sections |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577064A (en) * | 2020-11-11 | 2021-03-30 | 湖南华电常德发电有限公司 | Air preheater anti-blocking structure capable of introducing hot air in sections and working method thereof |
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2020
- 2020-11-11 CN CN202022599976.9U patent/CN214406138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577064A (en) * | 2020-11-11 | 2021-03-30 | 湖南华电常德发电有限公司 | Air preheater anti-blocking structure capable of introducing hot air in sections and working method thereof |
| CN112577064B (en) * | 2020-11-11 | 2023-04-28 | 湖南华电常德发电有限公司 | Air preheater anti-blocking structure with hot air introduced in sections and working method thereof |
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