CN216668413U - Ash removal device of rotary air preheater - Google Patents
Ash removal device of rotary air preheater Download PDFInfo
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- CN216668413U CN216668413U CN202220261069.XU CN202220261069U CN216668413U CN 216668413 U CN216668413 U CN 216668413U CN 202220261069 U CN202220261069 U CN 202220261069U CN 216668413 U CN216668413 U CN 216668413U
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- heat exchange
- exchange rotor
- rotor
- preheating bin
- removal device
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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 dust cleaning device of a rotary air preheater, which comprises a preheating bin, wherein a heat exchange rotor is rotationally arranged in the preheating bin, partition plates fixed in the preheating bin are arranged on the upper side and the lower side of the heat exchange rotor respectively, the interior of the preheating bin is divided into a flue gas area and an air area by the partition plates, a support is fixedly arranged in the flue gas area, a cleaning disc used for scraping and brushing the top of the heat exchange rotor is rotationally arranged at the lower end of the support, and a vibration assembly for periodically knocking the heat exchange rotor is arranged on the side wall of the preheating bin. According to the utility model, by arranging the cleaning disc and the vibration assembly, when the double-end motor drives the heat exchange rotor to rotate, the cleaning disc can be synchronously driven to scrape and clean the top of the heat exchange rotor, and the vibration assembly is driven to operate to knock the heat exchange rotor to generate vibration, so that flue gas dust can quickly leave the heat exchange rotor, the influence of the retained flue gas dust on the heat conduction performance of the heat exchange rotor is reduced, and the heat exchange efficiency of the heat exchange rotor is improved and maintained.
Description
Technical Field
The utility model relates to the technical field of air preheaters, in particular to a dust cleaning device of a rotary air preheater.
Background
The air preheater widely used in utility boilers includes a tubular type and a rotary type, wherein the rotary type air preheater transfers heat in a regenerative manner, and the heat transfer is achieved by alternately flowing flue gas and air through heating surfaces of an inner rotor of the preheater.
The patent document CN113670113A proposes an integrated cleaning device for a rotary air preheater, in which the air preheater includes two sets of bases, a furnace located between the bases, and a rotor, the rotor includes a frame, a shaft, and a plurality of sets of partition plates, and a plurality of sets of channels are disposed on each set of partition plates at equal intervals; a driving motor which coaxially rotates with the shaft body is fixed on the base at the upper end part; a plurality of groups of ceramic heat exchange plates are inserted between any two adjacent groups of partition plates, and the vertical end surfaces on the two sides of each ceramic heat exchange plate are in clearance fit with the vertical end surfaces of the two groups of partition plates; the through hole has been seted up on furnace, and high pressure water pump is installed to one side of furnace, and high pressure water pump is connected with and inserts the inside nonrust steel pipe of furnace, is connected with a plurality of groups shower nozzle on the nonrust steel pipe, is connected with a plurality of groups on the nonrust steel pipe and inserts the first raceway of inserting in each group channel, all is connected with the shower nozzle on each group's the first raceway. This application has promoted the clean degree of each group's pottery heat transfer board, makes the heat exchange efficiency of each group's pottery heat transfer board obtain improving, has promoted air heater operation process's whole efficiency and economic nature.
Adopt among the prior art rivers to wash the mode to heat transfer rotor and clean in order to improve heat exchange efficiency, but this kind of mode can make heat transfer rotor cooling, therefore can only use when heat transfer rotor is out of work, and want to make heat transfer rotor's heat exchange efficiency maintain heat exchange efficiency when obtaining improving and make it in the course of the work, then need new ash removal device to improve this kind of condition, consequently need a rotation air preheater's ash removal device urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ash removal device of a rotary air preheater to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an ash removal device of rotation air preheater, includes preheating bin, preheating bin internal rotation is provided with the heat transfer rotor, the downside all is provided with the baffle that is fixed in preheating bin on the heat transfer rotor, the baffle will preheat the inside flue gas district and the air district that divide into in the bin, flue gas district internal fixation is provided with the support, the support lower extreme rotates and is provided with the cleaning disc that is used for scraping brush heat transfer rotor top, it is provided with the vibration subassembly that periodic strikes the heat transfer rotor to preheat the bin lateral wall, the rotation of heat transfer rotor, cleaning disc and the action of striking of vibration subassembly are all through preheating the double-end motor drive of the outer fixed mounting in bin.
Preferably, a gear ring is fixedly arranged on the outer side of the heat exchange rotor, and a gear matched with the gear ring is coaxially and fixedly connected with one output end of the double-head motor.
Preferably, the number of the cleaning discs is 2-4, the cleaning discs are equidistantly distributed on the support, and a plurality of the cleaning discs can sweep the whole top surface of the heat exchange rotor when the heat exchange rotor rotates for one circle.
Preferably, the support internal rotation is provided with the runner with the coaxial fixed connection of cleaning disc, the coaxial fixedly connected with drive wheel of a double-end motor output, the runner passes through the belt linkage with the drive wheel.
Preferably, the vibration subassembly includes the plectane of the coaxial fixed connection of a double-end motor output, be provided with the lug on the plectane, be provided with the groove of sliding in the lug, it is provided with the rapping bar to slide in the groove of sliding, rapping bar one end extends to outside the groove of sliding, and the other end passes through the spring and is connected with the groove of sliding.
Preferably, the preheating bin is provided with a smoke inlet and a smoke outlet corresponding to the upper side and the lower side of the smoke area respectively.
Preferably, an air outlet and an air inlet are respectively arranged on the preheating bin and corresponding to the upper side and the lower side of the air zone.
Compared with the prior art, the utility model has the beneficial effects that:
this ash removal device of rotation air preheater is through setting up clean dish and vibration subassembly, can drive the heat transfer rotor when rotating at double-end motor, it is clean to drive the flue gas dust that clean dish is detained at the heat transfer rotor top in step and scrape the brush, and make the vibration subassembly operation and strike the heat transfer rotor and produce the vibration, make the flue gas dust that the cleanness got off can leave the heat transfer rotor downwards fast from this, and no longer detain on the top or the inner wall of heat transfer rotor, thereby the heat conductivility that reduces the heat transfer rotor receives the influence of detaining the flue gas dust, make its heat exchange efficiency improve and obtain maintaining.
Drawings
FIG. 1 is a schematic overall sectional view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the utility model at A of FIG. 1;
fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.
In the figure: 1. preheating a bin; 2. a heat exchange rotor; 3. a partition plate; 4. a flue gas zone; 5. an air zone; 6. a support; 7. cleaning the disc; 8. a double-headed motor; 9. a toothed ring; 10. a gear; 11. a rotating wheel; 12. a drive wheel; 13. a belt; 14. a circular plate; 15. a bump; 16. a sliding groove; 17. knocking the rod; 18. a spring; 19. a smoke inlet; 20. a smoke outlet; 21. an air outlet; 22. an air inlet.
Detailed Description
Referring to fig. 1-4, the ash removal device for a rotary air preheater provided in the embodiment of the present invention includes a preheating bin 1, a heat exchange rotor 2 is rotatably disposed in the preheating bin 1, partition plates 3 fixed in the preheating bin 1 are disposed on upper and lower sides of the heat exchange rotor 2, the interior of the preheating bin 1 is divided into a flue gas area 4 and an air area 5 by the partition plates 3, a support 6 is fixedly disposed in the flue gas area 4, a cleaning disc 7 for scraping and brushing the top of the heat exchange rotor 2 is rotatably disposed at the lower end of the support 6, a vibration assembly for periodically knocking the heat exchange rotor 2 is disposed on the side wall of the preheating bin 1, and the heat exchange rotor 2 rotates, the rotation of the cleaning disk 7 and the knocking action of the vibration component are driven by a double-head motor 8 fixedly arranged outside the preheating bin 1.
Specifically, the preheating bin 1 is used for introducing flue gas with waste heat and cold air to be burnt, and providing a relatively closed occasion for heat transfer of the flue gas and the air; the heat exchange rotor 2 is externally of a cylindrical structure, the heat exchange rotor is internally formed by fixedly connecting a plurality of heat conducting fin structures, and hollow structures are arranged among the heat conducting fins, so that the heat exchange rotor 2 can conduct heat quickly, and gas circulation is not influenced; the partition plate 3 is used for separating the flue gas flowing into the preheating bin 1 from the air, the flue gas and the air are not in direct contact so as to avoid generation of turbulent flow, then the flue gas and the air are subjected to heat transfer through the rotating heat exchange rotor 2, the density of a heat transfer surface is high, the structure is compact, and the occupied area is small; the bottom of the cleaning disc 7 is arranged to be in a hairbrush structure and keeps contact with the top of the heat exchange rotor 2, so that when the heat exchange rotor 2 rotates, the cleaning disc 7 which is not in position can carry out hanging brush cleaning on the top of the heat exchange rotor 2; the vibration component adopts a knocking method to enable the heat exchange rotor 2 to generate periodic vibration, and the vibration can enable smoke dust adhered to the heat exchange rotor 2 to be separated. In the in-service use, double-end motor 8 starts, drive heat transfer rotor 2 and rotate on one side, drive cleaning disc 7 and rotate on one side, still drive the vibration subassembly operation on one side and strike heat transfer rotor 2, then, the flue gas dust that heat transfer rotor 2 upper end is detained is cleaned by the continuous brush of hanging of cleaning disc 7, and with the flue gas dust that heat transfer rotor 2 inner wall is stained with the attached together under the vibration, break away from heat transfer rotor 2 and fly down, and finally along with flue gas exhaust preheating bin 1, thereby the heat conductivility that has reduced heat transfer rotor 2 receives the influence of detaining flue gas dust, make its heat exchange efficiency improve and obtain maintaining.
Compared with the prior art, the ash removal device of the rotary air preheater provided by the embodiment of the utility model is provided with the cleaning disc 7 and the vibration assembly, when the double-head motor 8 drives the heat exchange rotor 2 to rotate, the cleaning disc 7 is synchronously driven to scrape and brush flue gas dust retained at the top of the heat exchange rotor 2, and the vibration assembly is driven to operate to knock the heat exchange rotor 2 to generate vibration, so that the cleaned flue gas dust can rapidly leave the heat exchange rotor 2 downwards and is not retained at the top or the inner wall of the heat exchange rotor 2, the influence of the retained flue gas dust on the heat conductivity of the heat exchange rotor 2 is reduced, and the heat exchange efficiency is improved and maintained.
As the preferred technical scheme of this embodiment, heat transfer rotor 2 outside is fixed and is provided with ring gear 9, 8 coaxial fixedly connected with of output of double-end motor and ring gear 9 assorted gear 10, it is specific, double-end motor 8 drives gear 10 and rotates, then gear 10 drives heat transfer rotor 2 through ring gear 9 and rotates, because the drive ratio between gear 10 and ring gear 9 is far less than one, then, heat transfer rotor 2 alright in preheating storehouse 1 slow rotation to more effectual heat absorption in flue gas district 4 or the heat dissipation of air district 5.
As the preferred technical scheme of this embodiment, cleaning disc 7 is provided with 2-4, and the equidistance distributes on support 6, and a plurality of cleaning discs 7 can sweep the whole top surface of heat transfer rotor 2 when heat transfer rotor 2 rotates the round, and is concrete, the setting of a plurality of equidistance cleaning discs 7 for can not shelter from more heat transfer rotor 2 top surfaces in order to avoid influencing heat conduction work of heat transfer rotor 2, guarantee again simultaneously that heat transfer rotor 2's whole top surface can both obtain cleanly.
As a further preferred technical scheme of this embodiment, support 6 internal rotation is provided with runner 11 with the coaxial fixed connection of cleaning disc 7, the coaxial fixedly connected with drive wheel 12 of 8 output ends of double-end motor, runner 11 passes through the belt 13 with drive wheel 12 and links, specifically, the output of double-end motor 8 drives drive wheel 12 and rotates, and drive wheel 12 rethread belt 13 drives runner 11 and rotates, and runner 11 drives cleaning disc 7 at last and rotates in order to reach the effective cleanness to heat transfer rotor 2 top.
As a further preferable technical solution of this embodiment, the vibration assembly includes a circular plate 14 coaxially and fixedly connected to an output end of the double-head motor 8, a protrusion 15 is disposed on the circular plate 14, a sliding groove 16 is disposed in the protrusion 15, a knock rod 17 is slidably disposed in the sliding groove 16, one end of the knock rod 17 extends out of the sliding groove 16, and the other end of the knock rod 17 is connected to the sliding groove 16 through a spring 18, specifically, the spring 18 is disposed such that the knock rod 17 is kept extending out of the sliding groove 16 without being subjected to an external force, then the knock rod 17 can approach and knock the outer side wall of the heat exchange rotor 2 with the rotation of the circular plate 14 driven by the double-head motor 8, and at the same time, the spring 18 is elastically deformed to contract the knock rod 17 into the sliding groove 16, so that the knock rod 17 can smoothly pass through a gap between the heat exchange rotor 2 and the circular plate 14, and then the spring 18 releases elastic potential energy to restore the knock rod 17 to the extended state, the next knocking operation can be prepared, and the heat exchange rotor 2 is periodically vibrated by repeating the operation.
In another embodiment of the utility model, a smoke inlet 19 and a smoke outlet 20 are respectively arranged on the preheating bin 1 and corresponding to the upper side and the lower side of the smoke zone 4, and a smoke outlet 21 and a gas inlet 22 are respectively arranged on the preheating bin 1 and corresponding to the upper side and the lower side of the air zone 5, specifically, smoke with waste heat enters the preheating bin 1 from the smoke inlet 19, then contacts the heat exchange rotor 2 and raises the temperature of the heating surface of the heat exchange rotor 2, and then is discharged from the smoke outlet 20; cold air enters the preheating bin 1 through the air inlet 22, contacts the heat exchange rotor 2 and absorbs heat accumulated on the heat exchange rotor 2, and then is discharged into the combustion furnace through the air outlet 21.
The working principle is as follows: when the heat exchange rotor 2 needs to be cleaned in the heat exchange work, the double-end motor 8 is started firstly, one output end of the double-end motor 8 drives the gear 10 to rotate, the gear 10 drives the heat exchange rotor 2 to rotate through the toothed ring 9, and the heat exchange rotor 2 slowly rotates in the preheating bin 1 because the transmission ratio between the gear 10 and the toothed ring 9 is far smaller than one; on the other side, an output end of the double-head motor 8 drives a driving wheel 12 to rotate, the driving wheel 12 drives a rotating wheel 11 to rotate through a belt 13, and the rotating wheel 11 finally drives the cleaning disc 7 to rotate so as to effectively clean the top of the heat exchange rotor 2; meanwhile, an output end of the double-end motor 8 also drives a circular plate 14 to rotate, the circular plate 14 drives a lug 15 to rotate, the lug 15 drives a knocking rod 17 to approach and knock the outer side wall of the heat exchange rotor 2, meanwhile, the spring 18 elastically deforms to enable the knocking rod 17 to shrink towards the inside of the sliding groove 16, so that the knocking rod 17 can smoothly pass through a gap between the heat exchange rotor 2 and the circular plate 14, then, the spring 18 releases elastic potential energy again to enable the knocking rod 17 to recover the extending state, the next knocking action can be prepared, the heat exchange rotor 2 can periodically vibrate in such a way, therefore, smoke dust retained at the upper end of the heat exchange rotor 2 is continuously brushed and cleaned by the cleaning disc 7, and under the knocking vibration action of the knocking rod 17, the dust retained at the top of the heat exchange rotor 2 and dust attached to the inner wall of the heat exchange rotor 2 are separated from the heat exchange rotor 2 and fly downwards together, and are finally discharged out of the preheating bin 1 along with the smoke, thereby reducing the influence of the heat-conducting property of the heat exchange rotor 2 by the retained flue gas dust, and improving and maintaining the heat exchange efficiency.
Claims (7)
1. The utility model provides an ash removal device of rotation air preheater, includes preheating bin (1), its characterized in that: the preheating bin is characterized in that a heat exchange rotor (2) is arranged in the preheating bin (1) in a rotating mode, a partition plate (3) fixed in the preheating bin (1) is arranged on the upper side and the lower side of the heat exchange rotor (2), the preheating bin (1) is divided into a flue gas area (4) and an air area (5) by the partition plate (3), a support (6) is fixedly arranged in the flue gas area (4), a cleaning disc (7) used for scraping the top of the heat exchange rotor (2) is arranged at the lower end of the support (6) in a rotating mode, the side wall of the preheating bin (1) is provided with a vibration assembly used for periodically knocking the heat exchange rotor (2), and the rotation of the heat exchange rotor (2), the rotation of the cleaning disc (7) and the knocking action of the vibration assembly are all driven by a double-end motor (8) fixedly installed outside the preheating bin (1).
2. The ash removal device of the rotary air preheater as claimed in claim 1, wherein: the heat exchange rotor (2) outside is fixed and is provided with ring gear (9), the coaxial fixedly connected with of double-end motor (8) output end and ring gear (9) assorted gear (10).
3. The ash removal device of the rotary air preheater as recited in claim 1, wherein: the cleaning discs (7) are arranged in an amount of 2-4 and are equidistantly distributed on the support (6), and the cleaning discs (7) can sweep the whole top surface of the heat exchange rotor (2) when the heat exchange rotor (2) rotates for one circle.
4. The ash removal device of the rotary air preheater as claimed in claim 1, wherein: the internal rotation of support (6) is provided with runner (11) with the coaxial fixed connection of cleaning disc (7), the coaxial fixedly connected with drive wheel (12) of a double-end motor (8) output, runner (11) and drive wheel (12) pass through belt (13) linkage.
5. The ash removal device of the rotary air preheater as claimed in claim 1, wherein: the vibration component comprises a double-end motor (8) and a circular plate (14) with an output end fixedly connected coaxially, a convex block (15) is arranged on the circular plate (14), a sliding groove (16) is formed in the convex block (15), a knocking rod (17) is arranged in the sliding groove (16) in a sliding mode, one end of the knocking rod (17) extends to the sliding groove (16), and the other end of the knocking rod is connected with the sliding groove (16) through a spring (18).
6. The ash removal device of the rotary air preheater as claimed in claim 1, wherein: a smoke inlet (19) and a smoke outlet (20) are respectively arranged on the preheating bin (1) and corresponding to the upper side and the lower side of the smoke zone (4).
7. The ash removal device of the rotary air preheater as claimed in claim 1, wherein: an air outlet (21) and an air inlet (22) are respectively arranged on the preheating bin (1) and correspond to the upper side and the lower side of the air zone (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220261069.XU CN216668413U (en) | 2022-02-09 | 2022-02-09 | Ash removal device of rotary air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220261069.XU CN216668413U (en) | 2022-02-09 | 2022-02-09 | Ash removal device of rotary air preheater |
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| Publication Number | Publication Date |
|---|---|
| CN216668413U true CN216668413U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220261069.XU Active CN216668413U (en) | 2022-02-09 | 2022-02-09 | Ash removal device of rotary air preheater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221761A (en) * | 2023-03-21 | 2023-06-06 | 江阴金童石化装备有限公司 | Radial flow back rotary heat accumulating type air preheater |
-
2022
- 2022-02-09 CN CN202220261069.XU patent/CN216668413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116221761A (en) * | 2023-03-21 | 2023-06-06 | 江阴金童石化装备有限公司 | Radial flow back rotary heat accumulating type air preheater |
| CN116221761B (en) * | 2023-03-21 | 2023-09-22 | 江阴金童石化装备有限公司 | Radial flow back rotary heat accumulating type air preheater |
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