CN102425686B - Bypass reversing baffle plate for waste heat boiler - Google Patents
Bypass reversing baffle plate for waste heat boiler Download PDFInfo
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- CN102425686B CN102425686B CN 201110308075 CN201110308075A CN102425686B CN 102425686 B CN102425686 B CN 102425686B CN 201110308075 CN201110308075 CN 201110308075 CN 201110308075 A CN201110308075 A CN 201110308075A CN 102425686 B CN102425686 B CN 102425686B
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Abstract
The invention relates to a bypass reversing baffle plate for a waste heat boiler, which can allow flue gas to horizontally flow towards the waste heat boiler or vertically flow towards a bypass chimney by turning by 90 degrees on a three-way reversing valve. According to the technical scheme provided by the invention, the bypass reversing baffle plate for the waste heat boiler comprises a baffle plate body and a driving mechanism, and is characterized in that: the baffle plate body comprises a torsion arm, a frame, an upper panel, a lower panel and a sealing component; the torsion arm is welded on the frame, and is connected with the driving mechanism; a plurality of sliding mats are welded and fixed on the upper and lower surfaces of the frame respectively; the upper panel and the lower panel are fixed on the sliding mats respectively, and are connected with each other through a stud; and sealing components which are matched with a three-way shell are arranged on the upper panel and the lower panel respectively. The bypass reversing baffle plate has a simple and reliable structure, high sealing performance and long service life; and high-pressure sealing air is introduced into the reversing baffle plate at two positions, so that leakage of flue gas is prevented.
Description
Technical field
The present invention relates to a kind of by pass flue three-way diverter valve with horizontal installation form of employing of an entrance and two outlets, the flue gas level that can make that specifically relates on the three-way diverter valve leads directly to toward exhaust heat boiler or 90 ° of vertical bypass reversing baffle plate of waste heat boilers that lead to bypass duct of turning.
Background technique
The by pass flue three-way diverter valve comprises housing and the reversible deflector that sets within it, and by rotating reversible deflector, can realize the commutation of flue gas.
Because reversible deflector need to satisfy the requirement that continous way is produced, can be subject in process of production the dust wearing and tearing in the flue gas, and corrupting influence, and the frequent switch of reversible deflector also can cause wearing and tearing, existing reversible deflector in use for some time, it holds the distortion of can't stand washing away of flue gas and causing baffle plate, even the coming off of baffle plate, poor sealing performance occurs, poor reliability can't guarantee its working life.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of bypass reversing baffle plate of waste heat boiler that is applied on the exhaust heat boiler bypass three-way diverter valve is provided, it is simple and reliable for structure, good seal performance, long service life.
According to technological scheme provided by the invention, bypass reversing baffle plate of waste heat boiler comprises baffle body and driving mechanism, it is characterized in that: described baffle body comprises turns round arm, framework, top plate, lower panel and sealed member, the described arm of turning round is welded on the framework, turns round arm and is used for connecting driving mechanism; The upper and lower surface of described framework is welded with respectively some sliding matses, top plate, lower panel are separately fixed on the sliding mats, be connected by double-screw bolt between top plate and the lower panel, the sealed member that matches with three-way body is installed respectively on top plate, the lower panel.
As a further improvement on the present invention, described framework comprise transverse frame channel-section steel, longitudinal edge frame channel-section steel, willfully strong channel-section steel, vertically strengthen channel-section steel and turn round fixedly channel-section steel of arm, two transverse frame channel-section steels and two longitudinal edge frame channel-section steels are welded into rectangle rack, three willfully strong, and channel-section steel is parallel is welded on equally spacedly on two longitudinal edge frame channel-section steels, the vertical channel-section steel of strengthening is welded on three willfully strong channel-section steel middle parts, and two transverse frame channel-section steels and adjacent willfully strong channel-section steel one end divide and weld one and turn round fixedly channel-section steel of arm; The described arm of turning round has seven, and wherein five afterbodys of turning round arm are welded on respectively two transverse frame channel-section steels and three willfully on the strong channel-section steel, and other two afterbodys of turning round arm are welded on respectively two and turn round arm fixedly on the channel-section steel.
As a further improvement on the present invention, described sealed member comprises diaphragm seal framework, aluminosilicate fiberboard, interior lining panel, the first diaphragm seal assembly and the second diaphragm seal assembly; The diaphragm seal framework is fixed in the above on plate, the lower panel, is provided with some raming in the diaphragm seal framework, and raming directly is welded on top plate, the lower panel; Aluminosilicate fiberboard is filled in the diaphragm seal framework, and interior lining panel covers on the aluminosilicate fiberboard, and interior lining panel supports and use fastening nuts by raming; Described the first diaphragm seal assembly is fixedly mounted on edge, diaphragm seal framework surrounding, and described the second diaphragm seal assembly is fixedly mounted on top plate, edge, lower panel surrounding.
As a further improvement on the present invention, described the first diaphragm seal assembly comprises diaphragm seal, spring sheet and pressing plate, diaphragm seal, spring sheet and pressing plate stack and are bolted on the diaphragm seal leg of frame in turn along upper, described spring sheet bending is V-arrangement, support by pressing plate the bottom of spring sheet one side, the edge of spring sheet opposite side is to the upper support diaphragm seal, and diaphragm seal upwards bends several angle; Described the second diaphragm seal assembly is identical with the first diaphragm seal modular construction.
As a further improvement on the present invention, described diaphragm seal upwards the angle of bending be 5 °.
As a further improvement on the present invention, described diaphragm seal two ends are made as plagiocephaly, and the oblique angle of plagiocephaly is greater than 45 °.
As a further improvement on the present invention, described driving mechanism comprises torque tube, front support seat, front-end bearing pedestal, front axle, fore bearing, bonnet, rear bearing, rear bearing block, rear support seat and rear axle; Front support seat, rear support seat are welded on respectively on the front and back side external surface of three-way body, and front-end bearing pedestal, rear bearing block are contained in respectively in front support seat, the rear support seat and fix; Described front axle is assemblied in the front-end bearing pedestal by the fore bearing supporting and by front black box sealing, described rear axle is assemblied in the rear bearing block and by bonnet by the rear bearing supporting and seals; Described torque tube two ends are fixedly connected with front axle, rear axle respectively, and the driving wheel that rotates for driving front axle, torque tube and rear axle is installed on the front axle, and the arm of turning round on the described baffle body is fixedly connected on the torque tube.
As a further improvement on the present invention, described front-end bearing pedestal and rear bearing block all are flanged bearing supports; Described front black box comprises packing ring, follower, clamping ring, seal ring, Hough circle and guard ring, follower is connected with the flange of front-end bearing pedestal by bolt, be provided with packing ring and guard ring between follower and the front-end bearing pedestal, guard ring is contained on the front axle, and packing ring is clamped between follower and the front-end bearing pedestal, and described clamping ring, seal ring and Hough circle are contained in the follower, clamp by clamping ring the seal ring both sides, seal ring internal surface and front axle Surface Contact, the Hough circle is contained in outside the seal ring, is used for being close to seal ring; Described bonnet is connected with the flange of rear bearing block by bolt.
As a further improvement on the present invention, the described arm front end of turning round is provided be used to the circular hole that is enclosed within on the torque tube, turns round arm and torque tube is welded to connect, and also is welded with stiffening plate on arm and the torque tube turning round.
As a further improvement on the present invention, be respectively installed with front shaft sleeve, rear axle housing and connect by flat key on described front axle, the rear axle; Described torque tube two ends are set on front shaft sleeve, the rear axle housing, connect and are welded and fixed by pin.
The present invention compared with prior art, advantage is: the present invention is simple and reliable for structure, good seal performance, long service life, reversible deflector all passes into high pressure sealing wind two positions, does not leak to guarantee flue gas.
Description of drawings
Fig. 1 is the structural front view of baffle body.
Fig. 2 is the structure plan view behind the baffle body assembling torque tube.
Fig. 3 is the structure left view of baffle body.
Fig. 4 is the baffle plate skeletal structure schematic representation in the baffle body.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is that K among Fig. 4 is to partial view.
Fig. 7 is the structural representation of the first diaphragm seal assembly among Fig. 1.
Fig. 8 is that A-A among Fig. 7 is to partial sectional view.
The structural representation of Fig. 9 driving mechanism.
Figure 10 is the local enlarged diagram of the B section among Fig. 9.
Description of reference numerals: 1-turns round arm, the 2-framework, 2.1-transverse frame channel-section steel, 2.2-longitudinal edge frame channel-section steel, 2.3-strong channel-section steel willfully, 2.4-the vertical channel-section steel of strengthening, 2.5-turn round fixedly channel-section steel of arm, the 3-top plate, the 4-sliding mats, 5-the first diaphragm seal assembly, 5.1-diaphragm seal, 5.2-spring sheet, 5.3-pressing plate, 6-diaphragm seal framework, 7-the second diaphragm seal assembly, the 8-double-screw bolt, 9-rams, the 10-lower panel, the 11-interior lining panel, the 12-torque tube, the 13-front shaft sleeve, 14-front support seat, the 15-front-end bearing pedestal, the 16-packing ring, the 17-follower, the 18-front axle, the 19-driving wheel, the 20-clamping ring, the 21-seal ring, 22-Hough circle, the 23-guard ring, the 24-fore bearing, the 25-bonnet, the 26-rear bearing, the 27-rear bearing block, 28-rear support seat, the 29-rear axle, the 30-rear axle housing, the 31-pin, the 32-flat key, the 33-stiffening plate.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: bypass reversing baffle plate of waste heat boiler of the present invention is applied on the three-way diverter valve, is used for matching with three-way body, realizes the commutation shunting of material.It mainly is comprised of baffle body and driving mechanism two-part.
The structure of described baffle body such as Fig. 1 ~ shown in Figure 3, it mainly forms by turning round arm 1, framework 2, top plate 3, lower panel 10 and sealed member, and the described arm 1 of turning round is welded on the framework 2, turns round arm 1 and is used for connecting driving mechanism; The upper and lower surface of described framework 2 is welded with respectively some sliding matses 4, top plate 3, lower panel 10 are fixed by screws in respectively on the sliding mats 4, be connected by double-screw bolt 8 between top plate 3 and the lower panel 10, the sealed member that matches with three-way body is installed respectively on top plate 3, the lower panel 10.
Such as Fig. 4 ~ shown in Figure 6, described framework 2 mainly by two transverse frame channel-section steels 2.1, two longitudinal edge frame channel-section steels 2.2, three willfully strong channel-section steel 2.3, one vertical strengthen channel-section steel 2.4 and two turn round arm fixedly channel-section steel 2.5 form, two transverse frame channel-section steels 2.1 and two longitudinal edge frame channel-section steels 2.2 are welded into rectangle rack, three strong channel-section steel 2.3 parallel being welded on equally spacedly on two longitudinal edge frame channel-section steels 2.2 willfully, the vertical channel-section steel 2.4 of strengthening is welded on three willfully strong channel-section steel 2.3 middle parts, and two transverse frame channel-section steels 2.1 divide one of welding to turn round fixedly channel-section steel 2.5 of arm with adjacent willfully strong channel-section steel 2.3 1 ends; The described arm 1 of turning round has seven, and wherein five afterbodys of turning round arm 1 are welded on respectively two transverse frame channel-section steels 2.1 and three willfully on the strong channel-section steel 2.3, and other two afterbodys of turning round arm 1 are welded on respectively two and turn round arm fixedly on the channel-section steel 2.5.
Such as Fig. 1 ~ shown in Figure 3, described sealed member mainly is comprised of diaphragm seal framework 6, aluminosilicate fiberboard, interior lining panel 11, the first diaphragm seal assembly 5 and the second diaphragm seal assembly 7; Diaphragm seal framework 6 is fixed by screws on top plate 3, the lower panel 10, is provided with somely to ram 9 in diaphragm seal framework 6, rams 9 directly to be welded on top plate 3, the lower panel 10; Aluminosilicate fiberboard is filled in the diaphragm seal framework 6, and interior lining panel 11 covers on the aluminosilicate fiberboard, and interior lining panel 11 is by raming 9 supportings and use fastening nuts; Described the first diaphragm seal assembly 5 is fixedly mounted on edge, diaphragm seal framework 6 surrounding by screw, and described the second diaphragm seal assembly 7 is fixedly mounted on top plate 3, edge, lower panel 10 surrounding by screw.
Among the present invention, the first diaphragm seal assembly 5 is identical with the second diaphragm seal assembly 7 structures, and the below describes as an example of the first diaphragm seal assembly 5 example.Such as Fig. 7, shown in Figure 8, described the first diaphragm seal assembly 5 mainly is comprised of diaphragm seal 5.1, spring sheet 5.2 and pressing plate 5.3, diaphragm seal 5.1, spring sheet 5.2 and pressing plate 5.3 stack in turn and are bolted on diaphragm seal framework 6 edges, described spring sheet 5.2 bendings are V-arrangement, the bottom of spring sheet 5.2 1 sides is by pressing plate 5.3 supportings, the edge of spring sheet 5.2 opposite sides is to upper support diaphragm seal 5.1, and diaphragm seal 5.1 upwards bends several angle.
As shown in Figure 8, the described diaphragm seal 5.1 upwards angle of bending is wanted size to fit, will ensure enough sealing loads on the one hand, ensures again on the other hand enough sealing contact surfaces.The present invention is according to long-term use experiment, and the described diaphragm seal 5.1 upwards angle of bending is set to 5 °.In addition, in order further to improve the sealability of diaphragm seal assembly, described diaphragm seal 5.1 two ends all are made as plagiocephaly, and the oblique angle of plagiocephaly is greater than 45 °, so that two diaphragm seals have certain overlapping part during 5.1 vertical the splicing.
The structure of described driving mechanism as shown in Figure 9, it mainly is comprised of torque tube 12, front support seat 14, front-end bearing pedestal 15, front axle 18, fore bearing 24, bonnet 25, rear bearing 26, rear bearing block 27, rear support seat 28 and rear axle 29; Front support seat 14, rear support seat 28 are welded on respectively on the front and back side external surface of three-way body, and front-end bearing pedestal 15, rear bearing block 27 are contained in respectively in front support seat 14, the rear support seat 28 and are welded and fixed; Described front axle 18 is assemblied in the front-end bearing pedestal 15 and by front black box by fore bearing 24 supportings and seals, and described rear axle 29 is assemblied in the rear bearing block 27 and by bonnet 25 by rear bearing 26 supportings and seals; Described torque tube 12 two ends are fixedly connected with front axle 18, rear axle 29 respectively, by flat key the driving wheel 19 that rotates for driving front axle 18, torque tube 12 and rear axle 29 are installed on the front axle 18, and the arm 1 of turning round on the described baffle body is fixedly connected on the torque tube 12.Described arm 1 front end of turning round is provided be used to the circular hole that is enclosed within on the torque tube 12, turns round arm 1 and is welded to connect with torque tube 12, also is welded with stiffening plate 33 turning round on arm 1 and the torque tube 12.
The Placement of described torque tube 12 and front axle 18, rear axle 29 is respectively installed with front shaft sleeve 13, rear axle housing 30 and passes through flat key 32 connections at front axle 18, rear axle 29 as shown in Figure 9; Described torque tube 12 two ends are set on front shaft sleeve 13, the rear axle housing 30, connect and are welded and fixed by pin 31.
Such as Fig. 9, shown in Figure 10, described front-end bearing pedestal 15 and rear bearing block 27 all are flanged bearing supports; Described front black box is mainly by packing ring 16, follower 17, clamping ring 20, seal ring 21, Hough circle 22 and guard ring 23 form, follower 17 is connected by the flange of bolt with front-end bearing pedestal 15, be provided with packing ring 16 and guard ring 23 between follower 17 and the front-end bearing pedestal 15, guard ring 23 is contained on the front axle 18, packing ring 16 is clamped between follower 17 and the front-end bearing pedestal 15, described clamping ring 20, seal ring 21 and Hough circle 22 are contained in the follower 17, clamp by clamping ring 20 seal ring 21 both sides, seal ring 21 internal surfaces and front axle 18 Surface Contacts, Hough circle 22 is contained in outside the seal ring 21, is used for being close to seal ring 21; Described bonnet 25 is connected by the flange of bolt with rear bearing block 27.
Claims (9)
1. bypass reversing baffle plate of waste heat boiler, comprise baffle body and driving mechanism, it is characterized in that: described baffle body comprises turns round arm (1), framework (2), top plate (3), lower panel (10) and sealed member, the described arm (1) of turning round is welded on the framework (2), turns round arm (1) and is used for connecting driving mechanism; The upper and lower surface of described framework (2) is welded with respectively some sliding matses (4), top plate (3), lower panel (10) are separately fixed on the sliding mats (4), be connected by double-screw bolt (8) between top plate (3) and the lower panel (10), the sealed member that matches with three-way body is installed respectively on top plate (3), the lower panel (10);
Described framework (2) comprises transverse frame channel-section steel (2.1), longitudinal edge frame channel-section steel (2.2), strong channel-section steel (2.3) willfully, indulge and strengthen channel-section steel (2.4) and turn round fixedly channel-section steel (2.5) of arm, two transverse frame channel-section steels (2.1) and two longitudinal edge frame channel-section steels (2.2) are welded into rectangle rack, three willfully strong, and channel-section steel (2.3) is parallel is welded on equally spacedly on two longitudinal edge frame channel-section steels (2.2), the vertical channel-section steel (2.4) of strengthening is welded on three willfully strong channel-section steel (2.3) middle parts, and two transverse frame channel-section steels (2.1) divide one of welding to turn round fixedly channel-section steel (2.5) of arm with adjacent willfully strong channel-section steel (2.3) one ends; The described arm (1) of turning round has seven, wherein five afterbodys of turning round arm (1) are welded on respectively two transverse frame channel-section steels (2.1) and three willfully on the strong channel-section steel (2.3), and other two afterbodys of turning round arm (1) are welded on respectively two and turn round arm fixedly on the channel-section steel (2.5).
2. bypass reversing baffle plate of waste heat boiler as claimed in claim 1, it is characterized in that: described sealed member comprises diaphragm seal framework (6), aluminosilicate fiberboard, interior lining panel (11), the first diaphragm seal assembly (5) and the second diaphragm seal assembly (7); Diaphragm seal framework (6) is fixed in the above on plate (3), the lower panel (10), is provided with some raming (9) in diaphragm seal framework (6), and ram (9) directly are welded on top plate (3), the lower panel (10); Aluminosilicate fiberboard is filled in the diaphragm seal framework (6), and interior lining panel (11) covers on the aluminosilicate fiberboard, and interior lining panel (11) supports and use fastening nuts by ram (9); Described the first diaphragm seal assembly (5) is fixedly mounted on diaphragm seal framework (6) edge, surrounding, and described the second diaphragm seal assembly (7) is fixedly mounted on top plate (3), lower panel (10) edge, surrounding.
3. bypass reversing baffle plate of waste heat boiler as claimed in claim 2, it is characterized in that: described the first diaphragm seal assembly (5) comprises diaphragm seal (5.1), spring sheet (5.2) and pressing plate (5.3), diaphragm seal (5.1), spring sheet (5.2) and pressing plate (5.3) stack in turn and are bolted on diaphragm seal framework (6) edge, described spring sheet (5.2) bending is V-arrangement, the bottom of spring sheet (5.2) one sides is by pressing plate (5.3) supporting, the edge of spring sheet (5.2) opposite side is to upper support diaphragm seal (5.1), and diaphragm seal (5.1) upwards bends several angle; Described the second diaphragm seal assembly (7) is identical with the first diaphragm seal assembly (5) structure.
4. bypass reversing baffle plate of waste heat boiler as claimed in claim 3 is characterized in that: described diaphragm seal (5.1) the upwards angle of bending is 5 °.
5. bypass reversing baffle plate of waste heat boiler as claimed in claim 4, it is characterized in that: described diaphragm seal (5.1) two ends are made as plagiocephaly, and the oblique angle of plagiocephaly is greater than 45 °.
6. bypass reversing baffle plate of waste heat boiler as claimed in claim 1, it is characterized in that: described driving mechanism comprises torque tube (12), front support seat (14), front-end bearing pedestal (15), front axle (18), fore bearing (24), bonnet (25), rear bearing (26), rear bearing block (27), rear support seat (28) and rear axle (29); Front support seat (14), rear support seat (28) are welded on respectively on the front and back side external surface of three-way body, and front-end bearing pedestal (15), rear bearing block (27) are contained in respectively in front support seat (14), the rear support seat (28) and fix; Described front axle (18) is assemblied in the front-end bearing pedestal (15) and by front black box by fore bearing (24) supporting and seals, and described rear axle (29) is assemblied in the rear bearing block (27) and by bonnet (25) by rear bearing (26) supporting and seals; Described torque tube (12) two ends are fixedly connected with front axle (18), rear axle (29) respectively, the driving wheel (19) that rotates for driving front axle (18), torque tube (12) and rear axle (29) is installed on the front axle (18), and the arm (1) of turning round on the described baffle body is fixedly connected on the torque tube (12).
7. bypass reversing baffle plate of waste heat boiler as claimed in claim 6, it is characterized in that: described front-end bearing pedestal (15) and rear bearing block (27) they all are flanged bearing supports; Described front black box comprises packing ring (16), follower (17), clamping ring (20), seal ring (21), Hough circle (22) and guard ring (23), follower (17) is connected by the flange of bolt with front-end bearing pedestal (15), be provided with packing ring (16) and guard ring (23) between follower (17) and the front-end bearing pedestal (15), guard ring (23) is contained on the front axle (18), packing ring (16) is clamped between follower (17) and the front-end bearing pedestal (15), described clamping ring (20), seal ring (21) and Hough circle (22) are contained in the follower (17), clamp by clamping ring (20) seal ring (21) both sides, seal ring (21) internal surface and front axle (18) Surface Contact, Hough circle (22) is contained in outside the seal ring (21), is used for being close to seal ring (21); Described bonnet (25) is connected by the flange of bolt with rear bearing block (27).
8. bypass reversing baffle plate of waste heat boiler as claimed in claim 6, it is characterized in that: described arm (1) front end of turning round is provided be used to the circular hole that is enclosed within on the torque tube (12), turn round arm (1) and torque tube (12) and be welded to connect, also be welded with stiffening plate (33) turning round on arm (1) and the torque tube (12).
9. bypass reversing baffle plate of waste heat boiler as claimed in claim 6 is characterized in that: be respectively installed with front shaft sleeve (13), rear axle housing (30) on described front axle (18), the rear axle (29) and pass through flat key (32) connection; Described torque tube (12) two ends are set on front shaft sleeve (13), the rear axle housing (30), connect and are welded and fixed by pin (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308075 CN102425686B (en) | 2011-10-11 | 2011-10-11 | Bypass reversing baffle plate for waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308075 CN102425686B (en) | 2011-10-11 | 2011-10-11 | Bypass reversing baffle plate for waste heat boiler |
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| Publication Number | Publication Date |
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| CN102425686A CN102425686A (en) | 2012-04-25 |
| CN102425686B true CN102425686B (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110308075 Active CN102425686B (en) | 2011-10-11 | 2011-10-11 | Bypass reversing baffle plate for waste heat boiler |
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| CN (1) | CN102425686B (en) |
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| GB2208427A (en) * | 1987-08-03 | 1989-03-30 | Dufaylite Dev Ltd | Smoke diverter valve in air duct |
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| CN201285061Y (en) * | 2008-09-19 | 2009-08-05 | 无锡市华通环保设备有限公司 | Smoke damper door with vertically arranged principal shaft |
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| CN201836508U (en) * | 2010-11-09 | 2011-05-18 | 上海神明控制工程有限公司 | Pneumatic actuator of damper |
| CN202252111U (en) * | 2011-10-11 | 2012-05-30 | 无锡市华通电力设备有限公司 | Afterheat boiler bypass reversing baffle plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NL9300173A (en) * | 1993-01-28 | 1994-08-16 | Jason Inc | Exhaust system for combustion gases from a gas turbine or the like. |
| US7086416B2 (en) * | 2004-05-27 | 2006-08-08 | Zimmerman & Jansen, Inc. | Valve assembly having a compensating gate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2208427A (en) * | 1987-08-03 | 1989-03-30 | Dufaylite Dev Ltd | Smoke diverter valve in air duct |
| DE3919212A1 (en) * | 1989-06-13 | 1990-12-20 | Rappold & Co Gmbh Hermann | Large flap valve sealing spring - acts on sealing surface and has pre-curved sealing spring straightened on assembly by tensioning spring |
| DE19633085A1 (en) * | 1996-08-16 | 1998-02-19 | Hermann Rappold Gmbh & Co Kg | Large gas duct flap valve has double expanding seal forming gas lock |
| CN2896042Y (en) * | 2005-12-01 | 2007-05-02 | 上海发电设备成套设计研究所 | Frame-type desulfurizing flue guard board air-valve |
| CN2859135Y (en) * | 2005-12-09 | 2007-01-17 | 长岭炼化岳阳工程设计有限公司 | High temperature gas three-way control valve |
| CN101220959A (en) * | 2007-12-28 | 2008-07-16 | 杭州锅炉集团股份有限公司 | Smoke damper door |
| CN201285061Y (en) * | 2008-09-19 | 2009-08-05 | 无锡市华通环保设备有限公司 | Smoke damper door with vertically arranged principal shaft |
| CN201476036U (en) * | 2009-07-23 | 2010-05-19 | 镇江市电站辅机厂 | Flue gas desulphurization baffle door |
| CN201836508U (en) * | 2010-11-09 | 2011-05-18 | 上海神明控制工程有限公司 | Pneumatic actuator of damper |
| CN202252111U (en) * | 2011-10-11 | 2012-05-30 | 无锡市华通电力设备有限公司 | Afterheat boiler bypass reversing baffle plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102425686A (en) | 2012-04-25 |
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Address after: 214000 zone a, Yangjian Town Industrial Park, Xishan District, Wuxi City, Jiangsu Province (No. 120, Jiaoyang Road) Patentee after: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: 214101, No. 1, spring road, East Industrial Park, Xishan District, Jiangsu, Wuxi Patentee before: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. |