CN103362423A - Internal tension type isolation door - Google Patents
Internal tension type isolation door Download PDFInfo
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- CN103362423A CN103362423A CN2013103155387A CN201310315538A CN103362423A CN 103362423 A CN103362423 A CN 103362423A CN 2013103155387 A CN2013103155387 A CN 2013103155387A CN 201310315538 A CN201310315538 A CN 201310315538A CN 103362423 A CN103362423 A CN 103362423A
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Abstract
The invention belongs to the technical field of isolation doors, and relates to an internal tension type isolation door, in particular to an isolation door for stopping hot air to enter a coal mill at an inlet of the coal mill. The internal tension type isolation door comprises a doorframe, a first door sheet, a second door sheet, a sealing air device, a driving cylinder and two locking mechanisms, wherein the sealing air device is fixedly arranged on the lower part of the lateral surface of the doorframe; a piston rod of the driving cylinder penetrates through a piston rod sealing bracket to be connected with a piston rod support lug; the other end of a push-pull rod penetrates through a push-pull rod sealing bracket to be connected with a push-pull rod support lug; a first travel switch and a second travel switch are fixedly arranged at the two ends of a guide rail frame respectively; the two locking mechanisms are arranged between the first and second door sheets; and an ejector rod mechanism at the same height with the two locking mechanisms is arranged at the left end of the doorframe respectively. According to the internal tension type isolation door, the relative positions of the door sheets and the doorframe can be regulated, so that the sealing performance between the door sheets and the doorframe is improved, and the safety of a maintainer is improved.
Description
Technical field
The present invention relates to a kind of built-in tension type isolation door, a kind of coal pulverizer inlet place is used for stopping that hot blast enters the isolation door of coal pulverizer specifically, belongs to the isolation door technical field.
Background technology
Along with the fast development of fired power generating unit, coal pulverizer is also corresponding developed as the main powder manufacturing apparatus of large-size thermal power plant.Coal pulverizer has the advantages such as reduced investment, power consumption are low, easy operation, but also has the shortcomings such as easily wearing and tearing, repair time are long.Because coal pulverizer powder process ability direct relation exerting oneself of generating set, so the quality of coal pulverizer quality directly has influence on the normal operation of whole power plant.
Isolation door is as the main xegregating unit of coal pulverizer and steam generator system, the most important thing especially in system.Isolation door must reliably be opened when coal pulverizer puts into effect, and isolation door must safety be isolated when coal pulverizer is in for subsequent use or overhaul, and the open and close of isolation door are had the regular hour requirement.Because the residing operating temperature of isolation door is high, duct cross-section is large, stressed large, the leakproofness of closing simultaneously, reliability requirement height, and domestic isolation door all can not reach very desirable duty, and this normal operation and maintenance to coal pulverizer has consisted of very large potential safety hazard.
Existing isolation door mainly is comprised of doorframe, door-plate and driving mechanism, door-plate and doorframe spare around between be provided with weather strip.Door-plate is locked at door-plate in the doorframe by the retaining mechanism on the door-plate after promoting to put in place by driving mechanism.Because the door-plate size is larger, door-plate wearing and tearing or door plate deformation appear in long-time running easily, cause the position between door-plate and doorframe to change, thus the generator gate body is not closed completely, hot blast leaks phenomenon, the normal operation of serious threat coal pulverizer and maintainer's safety.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, a kind of intensity is high, the built-in tension type isolation door of good airproof performance thereby provide, can adjust the relative position between door-plate and doorframe, improve the sealing between door-plate and doorframe, improve maintainer's safety.
According to technical scheme provided by the invention, built-in tension type isolation door comprises doorframe, the first door-plate, the second door-plate, sealed air device, driving cylinder and retaining mechanism, be provided with the first door-plate parallel to each other and the second door-plate in the doorframe, be provided with sealing ring between doorframe and the first door-plate, the second door-plate.It is characterized in that: described the first door-plate be connected the door-plate side and jointly connect pull bar journal stirrup and piston rod journal stirrup.Frame side basifacial fixing seal wind apparatus, middle part, doorframe side is pull bar sealed support and piston rod packing support fixedly, and middle part, doorframe side fixed drive air cylinder support drives fixed drive cylinder on the air cylinder support.The piston rod of described driving cylinder passes the piston rod packing support and connects the piston rod journal stirrup.Drive air cylinder support upper end fixed guide frame, the inboard upper and lower side of guide rail bracket is provided with guide rail, the roller that is slidingly installed in the guide rail, and roller is installed on the turning rolls by roller shaft.Described turning rolls front end connects pull bar, and the pull bar other end passes the pull bar sealed support and connects the pull bar journal stirrup.The first travel switch and the second travel switch are fixed respectively in described guide rail bracket two ends, and the first travel switch and the second travel switch are positioned at roller one side.Be provided with two retaining mechanisms between described the first door-plate and the second door-plate, be in the sustained height position with two retaining mechanisms respectively at the doorframe left end and be provided with post rod mechanism.
Further, the doorframe both sides are respectively equipped with the adpting flange of a circle.
Further, the doorframe both sides connect the blind lid of doorframe by flange respectively.
Further, the inboard upper and lower side of doorframe is installed respectively a plurality of doorframe rollers.
Further, the doorframe inner bottom part is provided with the door-plate guide rail.
Further, the first door-plate side connects two blind lids of door-plate, a plurality of door-plate rollers of the first door-plate installed inside by flange.
Further, the second door-plate is identical with the first door panel structure.
Further, sealed air device comprises the first airduct and the second airduct, between the first airduct and the second airduct sealed valve is installed, and the sealed valve upper end connects the YE support, and YE support upper end is YE fixedly.YE is electrically connected with sealed valve.Be communicated with the second tracheae on the second airduct, the second tracheae other end is communicated with the first tracheae middle part, and the two ends of the first tracheae connect respectively pull bar sealed support and piston rod packing support.The second airduct rear end adpting flange interface.
Further, retaining mechanism comprises the first connecting lever seat and the second connecting lever seat, and the first connecting lever seat connects two the first connecting levers by bearing pin, and two the first connecting levers connect respectively the first door-plate and the second door-plate by bearing pin.The second connecting lever seat connects two the second connecting levers by bearing pin, and two the second connecting levers connect respectively the first door-plate and the second door-plate by bearing pin.The first connecting lever seat one end connects head rod, and the second connecting lever seat one end connects the second connecting rod, connects by adjusting screw(rod) between head rod and the second connecting rod.The adjusting screw(rod) two ends connect respectively the first locking nut and the second locking nut, lock head rod and the second connecting rod that is connected on the adjusting screw(rod) by the first locking nut and the second locking nut.
Further, post rod mechanism comprises the push rod hold-down nut that is fixed on the doorframe, locks on the Ejector pin lock jack panel that the push rod that is spirally connected in the push rod hold-down nut, push rod connect by front end and the push rod hold-down nut.
Compared with the prior art the present invention has the following advantages:
Structure of the present invention is ingenious, compact, reasonable, can adjust the relative position between door-plate and doorframe, has improved the sealing between door-plate and doorframe, has improved maintainer's safety; Door-plate is opened flexibility and reliability, adopts the pressure-air sealing, isolated good sealing effect; Dual panel forms two seals.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is BB sectional view among Fig. 1.
Fig. 3 is AA sectional view among Fig. 1.
Fig. 4 is the doorframe front view.
Fig. 5 is doorframe internal construction schematic diagram.
Fig. 6 is the first door panel structure schematic diagram.
Fig. 7 is the sealed air device structural representation.
Fig. 8 is driving mechanism and position-limit mechanism front view.
Fig. 9 is driving mechanism and position-limit mechanism top view.
Figure 10 is that guide rail bracket partly cuts open figure.
Figure 11 is the locking mechanism structure schematic diagram.
Description of reference numerals: 1-doorframe, 1.1-doorframe roller, 1.2-door-plate guide rail, 2-the first door-plate, 2.1-door-plate roller, 2.2-the blind lid of door-plate, 3-the second door-plate, the 4-sealed air device, 4.1-the first airduct, 4.2-sealed valve, 4.3-the second airduct, 4.4-flange-interface, 4.5-the first tracheae, 4.6-the second tracheae, 4.7-YE, 4.8-YE support, 5-drives cylinder, 6-drives air cylinder support, the 7-retaining mechanism, 7.1-the first connecting lever seat, 7.2-the first connecting lever, 7.3-head rod, 7.4-the first locking nut, 7.5-adjusting screw(rod), 7.6-the second locking nut, 7.7-the second connecting rod, 7.8-the second connecting lever, 7.9-the second connecting lever seat, the 8-sealing ring, 9-the second travel switch, 10-pull bar journal stirrup, 11-piston rod journal stirrup, the 12-post rod mechanism, 12.1-push rod hold-down nut, 12.2-push rod, 12.3-Ejector pin lock jack panel, 13-pull bar sealed support, 14-piston rod packing support, the 15-adpting flange, the blind lid of 16-doorframe, the 17-guide rail bracket, the 18-guide rail, the 19-pull bar, the 20-turning rolls, the 21-roller shaft, the 22-roller, 23-the first travel switch.
The specific embodiment
Following the present invention is further described in connection with the embodiment in the accompanying drawing:
Shown in Fig. 1 ~ 3, the present invention mainly comprises doorframe 1, the first door-plate 2, the second door-plate 3, sealed air device 4, drives cylinder 5 and retaining mechanism 7, be provided with the first door-plate 2 parallel to each other and the second door-plate 3 in the doorframe 1, be provided with sealing ring 8 between doorframe 1 and the first door-plate 2, the second door-plate 3.Bottom, doorframe 1 side fixing seal wind apparatus 4, middle part, doorframe 1 side is pull bar sealed support 13 and piston rod packing support 14 fixedly.Described the first door-plate 2 be connected door-plate 3 sides and jointly connect pull bar journal stirrup 10 and piston rod journal stirrup 11.Middle part, doorframe 1 side fixed drive air cylinder support 6 drives fixed drive cylinder 5 on the air cylinder support 6.
Shown in Fig. 8 ~ 10, the piston rod of described driving cylinder 5 passes piston rod packing support 14 and connects piston rod journal stirrup 11.Drive air cylinder support 6 upper end fixed guide framves 17, guide rail bracket 17 inboard upper and lower sides are provided with guide rail 18, the roller 22 that is slidingly installed in the guide rail 18, and roller 22 is installed on the turning rolls 20 by roller shaft 21.Described turning rolls 20 front ends connect pull bar 19, and pull bar 19 other ends pass pull bar sealed support 13 and connect pull bar journal stirrup 10.Described guide rail bracket 17 two ends are fixed respectively the first travel switch 23 and the second travel switch 9, the first travel switches 23 and the second travel switch 9 and are positioned at roller 22 1 sides.When sliding into two ends, the left and right sides in guide rail 18, roller 22 can collide the first travel switch 23 and the second travel switch 9, thus the push-in stroke of control piston bar.
Driving cylinder 5 moves in doorframe by piston rod promotion door-plate, pull bar 19 is connected on the door-plate and moves with door-plate, when the roller 22 that connects when pull bar 19 rear ends collides first travel switch 23 at guide rail bracket 17 two ends and the second travel switch 9, door-plate arrives desired location, drives cylinder 5 and stops to promote door-plate.
As shown in Figure 4, doorframe 1 both sides are respectively equipped with the adpting flange 15 of a circle, and doorframe 1 both sides connect a blind lid 16 of doorframe that is used for maintenance by flange respectively.
As shown in Figure 5, described doorframe 1 inboard upper and lower side is installed respectively a plurality of doorframe roller 1.1, the first door-plates 2 and the second door-plate 3 and is implemented in movement in the doorframe 1 by doorframe roller 1.1.Doorframe 1 inner bottom part is provided with door-plate guide rail 1.2, and door-plate guide rail 1.2 is used for being slidingly connected the first door-plate 2 and the second door-plate 3.The a plurality of door-plate rollers 2.1 of described the first door-plate 2 installed inside.
As shown in Figure 6, described the first door-plate 2 sides connect two blind lids 2.2 of door-plate by flange, carry out service work by the blind lid 2.2 of door-plate.Described the second door-plate 3 is identical with the first door-plate 2 structures.
As shown in Figure 7, described sealed air device 4 comprises the first airduct 4.1 and the second airduct 4.3, sealed valve 4.2 is installed between the first airduct 4.1 and the second airduct 4.3, and sealed valve 4.2 upper ends connect YE support 4.8, and YE support 4.8 upper ends are YE 4.7 fixedly.YE 4.7 is electrically connected with sealed valve 4.2, the opening and closing of YE 4.7 control sealed valves 4.2.Be communicated with the second tracheae 4.6, the second tracheaes 4.6 other ends on described the second airduct 4.3 and be communicated with the first tracheae 4.5 middle parts, the two ends of the first tracheae 4.5 connect respectively pull bar sealed support 13 and piston rod packing support 14.Described the second airduct 4.3 rear end adpting flange interfaces 4.4.
The operating principle of this device is: when door-plate cuts out, pass into sealing air by the second tracheae 4.6 that is connected on the second airduct 4.3 in pull bar sealed support and piston rod packing support, improve sealing.When door-plate is opened, close the sealing air stop supplies by YE 4.7 control sealed valves 4.2.Cost of the present invention is lower, and sealing air can be provided, and has improved the sealing of isolation door, has improved maintainer's safety.
Be provided with two retaining mechanisms 7 between described the first door-plate 2 and the second door-plate 3, retaining mechanism 7 can promote the first door-plate 2, the second door-plate 3 and doorframe 1 lock sealing.
As shown in figure 11, described retaining mechanism 7 comprises that the first connecting lever seat 7.1 and the second connecting lever seat 7.9, the first connecting lever seats 7.1 connect 7.2, two the first connecting levers 7.2 of two the first connecting levers by bearing pin and connect respectively the first door-plate 2 and the second door-plate 3 by bearing pin.The second connecting lever seat 7.9 connects 7.8, two the second connecting levers 7.8 of two the second connecting levers by bearing pin and connects respectively the first door-plate 2 and the second door-plate 3 by bearing pin.Described the first connecting lever seat 7.1 1 ends connect head rod 7.3, the second connecting lever seats 7.9 1 ends and connect the second connecting rod 7.7, connect by adjusting screw(rod) 7.5 between head rod 7.3 and the second connecting rod 7.7.Described adjusting screw(rod) 7.5 two ends connect respectively the first locking nut 7.4 and the second locking nut 7.6, lock head rod 7.3 and the second connecting rod 7.7 that is connected on the adjusting screw(rod) 7.5 by the first locking nut 7.4 and the second locking nut 7.6.For being threaded, therefore can regulate the distance between head rod 7.3 and the second connecting rod 7.7 between adjusting screw(rod) 7.5 and head rod 7.3 and the second connecting rod 7.7, thereby adjust the parallelism of the first door-plate 2 and the second door-plate 3.After adjusting to the right place, by the first locking nut 7.4 and the second locking nut 7.6 position of head rod 7.3 and the second connecting rod 7.7 is locked.
Be in the sustained height position with two retaining mechanisms 7 respectively at doorframe 1 left end and be provided with post rod mechanism 12.
Described post rod mechanism 12 comprises the push rod hold-down nut 12.1 that is fixed on the doorframe 1, locking on the Ejector pin lock jack panel 12.3 that the push rod 12.2 that is spirally connected in the push rod hold-down nut 12.1, push rod 12.2 connect by front end and the push rod hold-down nut 12.1.After adjusting to the right place, position about push rod 12.2 can be adjusted by push rod hold-down nut 12.1, position lock by Ejector pin lock jack panel 12.3.After the first connecting lever seat 7.1 of retaining mechanism 7 is run into push rod 12.2, the first connecting lever 7.2 and the second connecting lever 7.8 corresponding opening, thus the first door-plate 2 and the second door-plate 3 are compressed at doorframe 1.
Operating principle of the present invention is: the first door-plate 2 and the second door-plate 3 promote to be implemented in movement in the doorframe 1 by driving cylinder 5, by the displacement that restriction the first door-plate 2 and the second door-plate 3 are set of the first travel switch 23 and the second travel switch 9.After the first door-plate 2 and the second door-plate 3 moved into place, retaining mechanism 7 was the first door- plate 2 and 3 lockings of the second door-plate, and passed into the sealing air sealing by sealed air device 4.Structure of the present invention is ingenious, compact, reasonable, can adjust the relative position between door-plate and doorframe, has improved the sealing between door-plate and doorframe, has improved maintainer's safety; Door-plate is opened flexibility and reliability, adopts the pressure-air sealing, isolated good sealing effect; Dual panel forms two seals.
Claims (10)
1. built-in tension type isolation door, comprise doorframe (1), the first door-plate (2), the second door-plate (3), sealed air device (4), drive cylinder (5) and retaining mechanism (7), be provided with the first door-plate (2) parallel to each other and the second door-plate (3) in the doorframe (1), be provided with sealing ring (8) between doorframe (1) and the first door-plate (2), the second door-plate (3); It is characterized in that: described the first door-plate (2) be connected door-plate (3) side and jointly connect pull bar journal stirrup (10) and piston rod journal stirrup (11); Doorframe (1) bottom, side fixing seal wind apparatus (4), middle part, doorframe (1) side is pull bar sealed support (13) and piston rod packing support (14) fixedly, middle part, doorframe (1) side fixed drive air cylinder support (6) drives the upper fixed drive cylinder (5) of air cylinder support (6); The piston rod of described driving cylinder (5) passes piston rod packing support (14) and connects piston rod journal stirrup (11); Drive air cylinder support (6) upper end fixed guide frame (17), the inboard upper and lower side of guide rail bracket (17) is provided with guide rail (18), the roller (22) that is slidingly installed in the guide rail (18), and roller (22) is installed on the turning rolls (20) by roller shaft (21); Described turning rolls (20) front end connects pull bar (19), and pull bar (19) other end passes pull bar sealed support (13) and connects pull bar journal stirrup (10); The first travel switch (23) and the second travel switch (9) are fixed respectively in described guide rail bracket (17) two ends, and the first travel switch (23) and the second travel switch (9) are positioned at roller (22) one sides; Be provided with two retaining mechanisms (7) between described the first door-plate (2) and the second door-plate (3), be in the sustained height position with two retaining mechanisms (7) respectively at doorframe (1) left end and be provided with post rod mechanism (12).
2. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described doorframe (1) both sides are respectively equipped with the adpting flange (15) of a circle.
3. built-in tension type isolation door as claimed in claim 1 is characterized in that: described doorframe (1) both sides connect a blind lid of doorframe (16) by flange respectively.
4. built-in tension type isolation door as claimed in claim 1, it is characterized in that: the inboard upper and lower side of described doorframe (1) is installed respectively a plurality of doorframe rollers (1.1).
5. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described doorframe (1) inner bottom part is provided with door-plate guide rail (1.2).
6. built-in tension type isolation door as claimed in claim 1 is characterized in that: described the first door-plate (2) side connects two blind lids of door-plate (2.2), a plurality of door-plate rollers of the first door-plate (2) installed inside (2.1) by flange.
7. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described the second door-plate (3) is identical with the first door-plate (2) structure.
8. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described sealed air device (4) comprises the first airduct (4.1) and the second airduct (4.3), between the first airduct (4.1) and the second airduct (4.3) sealed valve (4.2) is installed, sealed valve (4.2) upper end connects YE support (4.8), and YE support (4.8) upper end is YE (4.7) fixedly; YE (4.7) is electrically connected with sealed valve (4.2); Upper the second tracheae (4.6) that is communicated with of the second airduct (4.3), the second tracheae (4.6) other end is communicated with the first tracheae (4.5) middle part, and the two ends of the first tracheae (4.5) connect respectively pull bar sealed support (13) and piston rod packing support (14); The second airduct (4.3) rear end adpting flange interface (4.4).
9. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described retaining mechanism (7) comprises the first connecting lever seat (7.1) and the second connecting lever seat (7.9), the first connecting lever seat (7.1) connects two the first connecting levers (7.2) by bearing pin, and two the first connecting levers (7.2) connect respectively the first door-plate (2) and the second door-plate (3) by bearing pin; The second connecting lever seat (7.9) connects two the second connecting levers (7.8) by bearing pin, and two the second connecting levers (7.8) connect respectively the first door-plate (2) and the second door-plate (3) by bearing pin; The first connecting lever seat (7.1) one ends connect head rod (7.3), and the second connecting lever seat (7.9) one ends connect the second connecting rod (7.7), connect by adjusting screw(rod) (7.5) between head rod (7.3) and the second connecting rod (7.7); Adjusting screw(rod) (7.5) two ends connect respectively the first locking nut (7.4) and the second locking nut (7.6), lock head rod (7.3) and the second connecting rod (7.7) that is connected on the adjusting screw(rod) (7.5) by the first locking nut (7.4) and the second locking nut (7.6).
10. built-in tension type isolation door as claimed in claim 1, it is characterized in that: described post rod mechanism (12) comprises the push rod hold-down nut (12.1) that is fixed on the doorframe (1), the push rod (12.2) that is spirally connected in the push rod hold-down nut (12.1), Ejector pin lock jack panel (12.3) and the upper locking of push rod hold-down nut (12.1) that push rod (12.2) connects by front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315538.7A CN103362423B (en) | 2013-07-24 | 2013-07-24 | Internal tension type isolation door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315538.7A CN103362423B (en) | 2013-07-24 | 2013-07-24 | Internal tension type isolation door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362423A true CN103362423A (en) | 2013-10-23 |
| CN103362423B CN103362423B (en) | 2015-06-24 |
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ID=49364605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310315538.7A Active CN103362423B (en) | 2013-07-24 | 2013-07-24 | Internal tension type isolation door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103362423B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527052A (en) * | 2013-10-31 | 2014-01-22 | 合肥市华皖电力设备有限公司 | Suspension type isolation door |
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| US6412221B1 (en) * | 1999-08-02 | 2002-07-02 | Thermal Engineering International | Catalyst door system |
| CN2828577Y (en) * | 2005-10-26 | 2006-10-18 | 无锡市华通环保设备有限公司 | Multi-sealing combined pneumatic cold, hot blast isolation door |
| CN2906354Y (en) * | 2006-04-15 | 2007-05-30 | 兰州长信电力设备有限责任公司 | Hot air isolating door with two insertion boards |
| CN101476735A (en) * | 2008-12-19 | 2009-07-08 | 陆昕 | Pneumatic double-plug board isolation door |
| CN201672528U (en) * | 2010-05-17 | 2010-12-15 | 无锡市华东电力设备有限公司 | Double-insertion mechanical locking hot air isolating door |
| JP2012026724A (en) * | 2011-11-11 | 2012-02-09 | Chugoku Electric Power Co Inc:The | Pulverized coal supply device, pulverized coal supply control method and pulverized coal supply control program |
| CN203361980U (en) * | 2013-07-24 | 2013-12-25 | 无锡市华通电力设备有限公司 | Built-in tension type isolation door |
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2013
- 2013-07-24 CN CN201310315538.7A patent/CN103362423B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6412221B1 (en) * | 1999-08-02 | 2002-07-02 | Thermal Engineering International | Catalyst door system |
| CN2434409Y (en) * | 2000-06-29 | 2001-06-13 | 张野 | Pneumatic mobile door/window without frame |
| CN2828577Y (en) * | 2005-10-26 | 2006-10-18 | 无锡市华通环保设备有限公司 | Multi-sealing combined pneumatic cold, hot blast isolation door |
| CN2906354Y (en) * | 2006-04-15 | 2007-05-30 | 兰州长信电力设备有限责任公司 | Hot air isolating door with two insertion boards |
| CN101476735A (en) * | 2008-12-19 | 2009-07-08 | 陆昕 | Pneumatic double-plug board isolation door |
| CN201672528U (en) * | 2010-05-17 | 2010-12-15 | 无锡市华东电力设备有限公司 | Double-insertion mechanical locking hot air isolating door |
| JP2012026724A (en) * | 2011-11-11 | 2012-02-09 | Chugoku Electric Power Co Inc:The | Pulverized coal supply device, pulverized coal supply control method and pulverized coal supply control program |
| CN203361980U (en) * | 2013-07-24 | 2013-12-25 | 无锡市华通电力设备有限公司 | Built-in tension type isolation door |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103527052A (en) * | 2013-10-31 | 2014-01-22 | 合肥市华皖电力设备有限公司 | Suspension type isolation door |
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| CN103362423B (en) | 2015-06-24 |
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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. |
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