CN202546797U - Mechanical feedback coaxial type coal dust valve - Google Patents
Mechanical feedback coaxial type coal dust valve Download PDFInfo
- Publication number
- CN202546797U CN202546797U CN2012200052125U CN201220005212U CN202546797U CN 202546797 U CN202546797 U CN 202546797U CN 2012200052125 U CN2012200052125 U CN 2012200052125U CN 201220005212 U CN201220005212 U CN 201220005212U CN 202546797 U CN202546797 U CN 202546797U
- Authority
- CN
- China
- Prior art keywords
- door
- plate
- coal dust
- type coal
- housing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model relates to a mechanical feedback coaxial type coal dust valve comprising a door body, a door plate and a driving air cylinder. The door plate is arranged inside the door body, and is driven to move by the driving air cylinder. The mechanical feedback coaxial type coal dust valve is characterized in that the door body comprises an upper shell, a lower shell, lateral frames and a bottom plate; the upper shell and the lower shell are vertically overlapped, and are fastened and connected by using screws to form a shell assembly; one ends of the two lateral frames are respectively fixedly connected at the two heads of the lateral edges of the shell assembly; the bottom plate is fixedly connected with the other ends of the two lateral frames; the door plate is arranged between the upper shell and the lower shell, and can randomly move; the driving air cylinder is mounted on the bottom plate of the door plate; and the piston rod of the driving air cylinder extends into the door body, and is connected with the top part of the door plate through a connection piece. The mechanical feedback coaxial type coal dust valve provided by the utility model has a simple and smart structure, and is applicable to being mounted on a flue with a random structure manner. Meanwhile, the door plate can be ensured to be smoothly opened and closed, and no large friction resistance exists. Furthermore, the opening/closing condition of the door plate can be accurately fed back, so that the reliability of an entire boiler system can be improved.
Description
Technical field
The utility model relates to the auxiliary device in the firepower electricity power plant boiler system, specifically a kind of machine feedback coaxial-type coal dust gate.
Background technology
The coal dust gate is the visual plant in the firepower electricity power plant boiler system, and it is applied on the flue, and the break-make that is used for controlling flue is opened.Existing coal dust gate; Door-plate is to rely on angle steel to be installed as intermediate connector on the door-plate with being connected of cylinder; Cylinder piston rod is installed on the side of angle steel; The another side adopts bolt to be connected with door-plate, and total installation form is the side that cylinder piston rod is installed in door-plate, belongs to eccentric pattern.When the air cylinder driven door-plate, because of the active force of cylinder acts on the angle steel, and that angle steel is connected with door-plate is eccentric; Make the stressed inclination of door-plate easily; Frictional force increase when causing door-plate to open and close and between housing, thus demand increased to air cylinder driven moment, increased equipment cost.And because the friction between door-plate and housing increases the service life that also can reduce door-plate and housing.In addition, be not with any switch feedback device on the existing coal dust gate, whether the door-plate switch whether puts in place and relies on magnetic switch on the cylinder block to put in place fully to feed back.But in practical application; The situation that door-plate and cylinder piston rod come off can appear; It is cylinder action and door-plate is failure to actuate; So just cause door-plate in fact not have switch to put in place, but cylinder judges by error that according to magnetic switch situation on it door-plate puts in place, promptly do not have the correct feedback door switching plate situation that puts in place.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art; A kind of machine feedback coaxial-type coal dust gate that is applied on the steam generator system flue is provided, and its simple and ingenious structure is applicable on the flue that is installed in any structure form; It is smooth and easy to guarantee simultaneously that door-plate opens and closes; Do not have big frictional resistance, and can correctly feed back the switch situation of door-plate, improved the reliability of whole cooker furnace system.
The technical scheme that provides according to the utility model: machine feedback coaxial-type coal dust gate, comprise a body, door-plate and driving cylinder, said door-plate is arranged in the body, drives and moves through driving cylinder; It is characterized in that: said door body comprises upper shell, lower house, side frame and base plate; Upper shell is folded mutually up and down with lower house and is fastenedly connected the composition housing unit with screw; One end of two side frames is fixedly connected on two of housing unit side respectively, and base plate is fixedly connected on the other end of two side frames; Said door-plate is arranged between upper shell and the lower house and can moves freely, and drives cylinder and is installed on the base plate of a body, and the piston rod that drives cylinder stretches in the body and through connector and is connected with the positive top of door-plate.
Further improvement as the utility model; Said door body is provided with open bit line journey switch and closes a travel switch; Door-plate triggers open bit line journey switch when under the driving cylinder drives, arriving open position, door-plate triggers when under driving the cylinder drive, arriving the closed position and closes a travel switch.
Further improvement as the utility model; Said open bit line journey switch, close a travel switch is installed in the door-plate side frame respectively through the switch seat board two; The switch seat board is installed on the side frame of door-plate through screw; Screw mounting hole on the said side frame is made as slotted hole, so that the installation site of switch seat board can be finely tuned within the specific limits.
As the further improvement of the utility model, the said housing unit inside of being made up of upper shell and lower house is provided with the guide groove that matches with the door-plate edge, for the unlatching of door-plate, close activity space is provided.
Further improvement as the utility model; Said door body middle part is provided with the black box that matches with the door-plate surface; Said black box comprises side seal plate, sealing strip, seal trim strip and housing screw, and the upper and lower surface of said door-plate has two sealing strips to be mated respectively, and sealing strip compresses through seal trim strip; Seal trim strip is installed on the housing unit through housing screw, the side seal plate be fixed on side before and after the housing unit through screw with the corresponding position of sealing strip.
As the further improvement of the utility model, the top of said door body is provided with first snap joint, and said first snap joint place inserts compressed air, is used to purge the dust stratification on the inner guide groove of housing unit.
As the further improvement of the utility model, said door body middle part is provided with two second snap joints one on the other, and said second snap joint place inserts compressed air, is used to seal the position of door-plate turnover housing unit, prevents that pipeline internal medium from leaking outside.
As the further improvement of the utility model, the piston rod of said driving cylinder is threaded and is locked with fastening screw nut with the centre bore of connector, and the central channel of connector is stuck in the positive top of door-plate and connects fixing with bolt.
The utility model compared with prior art, advantage is: the utility model simple and ingenious structure is applicable to be applicable to the flue of 300 MW, 600MW or 1000MW steam generator system on the unit of thermal power plant on the flue that is installed in any structure form.The utility model has only single can the driving cylinder and be installed on the base plate of a body to the door-plate of pipeline one side extraction, and the active force that drives cylinder acts directly on the positive top of door-plate, does not have eccentric phenomena, and door-plate opens and closes smooth and easy, does not have big frictional resistance; The utility model under the prerequisite that does not increase installing space, can correctly feed back the switch situation of door-plate through open bit line journey switch being installed and being closed a travel switch on the side frame of door body, improved the reliability of whole cooker furnace system.
Description of drawings
Fig. 1 is the structural front view of the utility model embodiment.
Fig. 2 is the structure vertical view of the utility model embodiment.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in the figure: the machine feedback coaxial-type coal dust gate among the embodiment mainly by upper shell 1, lower house 2, door-plate 3, first snap joint 4, second snap joint 5, side seal plate 6, side frame 7, connector 8, fastening screw nut 9, base plate 10, drive cylinder 11, open bit line journey switch 12, close parts such as a travel switch 13, switch seat board 14, sealing strip 15, seal trim strip 16 and housing screw 17 and form.
Like Fig. 1, shown in Figure 2; Said upper shell 1, lower house 2, side frame 7 and base plate 10 are formed door bodies; Upper shell 1 is folded mutually up and down with lower house 2 and is fastenedly connected the composition housing unit with screw; One end of two side frames 7 is fixedly connected on two of housing unit side respectively, and base plate 10 is fixedly connected on the other end of two side frames 7; Said door-plate 3 is arranged between upper shell 1 and the lower house 2 and can moves freely; Driving cylinder 11 is installed on the base plate 10 of a body; The piston rod that drives cylinder 11 stretches in the body and through connector 8 and is connected with the positive top of door-plate 3, and the flexible door-plate 3 that drives of piston rod that drives cylinder 11 moves in the door body.
As shown in Figure 2; Said door body is provided with in order to reaction door-plate 3 and opens and closes the open bit line journey switch 12 of situation and close a travel switch 13; Open bit line journey switch 12, close a travel switch 13 is installed in door-plate 3 side frames 7 respectively through switch seat board 14 two; Said switch seat board 14 is installed in through screw on the side frame 7 of door-plate 3, and the screw mounting hole on the said side frame 7 is made as slotted hole, so that the installation site of switch seat board 14 can be finely tuned within the specific limits.In concrete the application, door-plate 3 triggers open bit line journey switch 12 when under driving cylinder 11 drives, arriving open position, and door-plate 3 triggers when under driving cylinder 11 drives, arriving the closed position and closes a travel switch 13.
Like Fig. 1, shown in Figure 2, the piston rod of said driving cylinder 11 is threaded and is locked with fastening screw nut 9 with the centre bore of connector 8, and the central channel of connector 8 is stuck in the positive top of door-plate 3 and connects fixing with bolt.Being connected between the piston rod that can guarantee to drive cylinder 11 like this and the door-plate 3 do not have eccentric phenomena, and it is smooth and easy that door-plate 3 is opened and closed, and reduces the frictional resistance that door-plate 3 opens and closes.
As shown in Figure 1, the said housing unit of being made up of upper shell 1 and lower house 2 is the essential part of coal dust gate, is provided with the guide groove that matches with door-plate 3 edges in the inside of housing unit, for the unlatching of door-plate 3, close activity space is provided.
In order to improve the sealing property of the utility model, prevent that pipeline internal medium from leaking outside, the utility model is provided with dual-seal at the middle part of door body.A kind of sealing is mechanical seal; Its structure such as Fig. 1, shown in Figure 2; Said door body middle part is provided with the black box that matches with door-plate 3 surfaces; Said black box mainly is made up of side seal plate 6, sealing strip 15, seal trim strip 16 and housing screw 17, and the upper and lower surface of said door-plate 3 has two sealing strips 15 to be mated respectively, and sealing strip 15 compresses through seal trim strip 16; Seal trim strip 16 is installed on the housing unit through housing screw 17, side seal plate 6 be fixed on side before and after the housing unit through screw with sealing strip 15 corresponding positions.Another kind of sealing is air seal; Its structure is as shown in Figure 1, is provided with two second snap joints 5 one on the other at door body middle part, and said second snap joint 5 places insert compressed air; Be used to seal the position of door-plate 3 turnover housing units, prevent that pipeline internal medium from leaking outside.
In addition, like Fig. 1, shown in Figure 2, the top of said door body also is provided with two first snap joints 4, and said first snap joint 4 places insert compressed air, is used to purge the dust stratification on the inner guide groove of housing unit.
During concrete the application; Drive cylinder 11 and connect the driving source of the gas, its piston rod stretches out and drives door-plate 3 and in housing unit, moves, when moving to off-position; Connector 8 on the door-plate 3 knocks the roller that closes on the travel switch 13; A travel switch 13 is closed in triggering, closes a travel switch 13 direct feedback signals to the control system, and prompting coal dust gate has been in closed condition.When needs are opened the coal dust gate; The piston rod retraction and the pulling door-plate 3 that drive cylinder 11 are walked toward open bit line; When moving to out, door-plate 3 knocks the roller of open bit line journey switch 12, triggers open bit line journey switch 12; Open bit line journey switch 12 direct feedback signals are to the control system, and prompting coal dust gate has been in open mode.
The utility model can be used on the steam generator system of air channel or flue size of various units.In use, door-plate 3 is opened flexibility and reliability, and feedback information is accurate, and unlatching moment is little.Door-plate 3 is quick on the draw, and with blow device, can be continuously the parts of inside be purged, and has reduced maintenance and fault rate, improves its serviceability greatly, the reduction use cost.
Claims (8)
1. machine feedback coaxial-type coal dust gate comprises a body, door-plate (3) and drives cylinder (11), and said door-plate (3) is arranged in the body, drives mobile through driving cylinder (11); It is characterized in that: said door body comprises upper shell (1), lower house (2), side frame (7) and base plate (10); Upper shell (1) folds and is fastenedly connected the composition housing unit up and down mutually with lower house (2); One end of two side frames (7) is fixedly connected on two of housing unit side respectively, and base plate (10) is fixedly connected on the other end of two side frames (7); Said door-plate (3) is arranged between upper shell (1) and the lower house (2) and can moves freely; Drive cylinder (11) and be installed on the base plate (10) of a body, the piston rod that drives cylinder (11) stretches in the body and through connector (8) and is connected with the positive top of door-plate (3).
2. machine feedback coaxial-type coal dust gate as claimed in claim 1; It is characterized in that: said door body is provided with open bit line journey switch (12) and closes a travel switch (13); Door-plate (3) triggers open bit line journey switch (12) when under driving cylinder (11) drives, arriving open position, door-plate (3) triggers when under driving cylinder (11) drive, arriving the closed position and closes a travel switch (13).
3. machine feedback coaxial-type coal dust gate as claimed in claim 2; It is characterized in that: said open bit line journey switch (12), close a travel switch (13) is installed in door-plate (3) side frame (7) respectively through switch seat board (14) two; Switch seat board (14) is installed on the side frame (7) of door-plate (3) through screw; Screw mounting hole on the said side frame (7) is made as slotted hole, so that the installation site of switch seat board (14) can be finely tuned within the specific limits.
4. machine feedback coaxial-type coal dust gate as claimed in claim 1 is characterized in that: the said housing unit inside of being made up of upper shell (1) and lower house (2) is provided with the guide groove that matches with door-plate (3) edge.
5. machine feedback coaxial-type coal dust gate as claimed in claim 1; It is characterized in that: said door body middle part is provided with the black box that matches with door-plate (3) surface; Said black box comprises side seal plate (6), sealing strip (15), seal trim strip (16) and housing screw (17); The upper and lower surface of said door-plate (3) has two sealing strips (15) to be mated respectively; Sealing strip (15) compresses through seal trim strip (16), and seal trim strip (16) is installed on the housing unit through housing screw (17), side seal plate (6) be fixed on side before and after the housing unit through screw with the corresponding position of sealing strip (15).
6. machine feedback coaxial-type coal dust gate as claimed in claim 1; It is characterized in that: the top of said door body is provided with first snap joint (4); Said first snap joint (4) locates to insert compressed air, is used to purge the dust stratification on the inner guide groove of housing unit.
7. machine feedback coaxial-type coal dust gate as claimed in claim 1; It is characterized in that: said door body middle part is provided with two second snap joints (5) one on the other; Said second snap joint (5) locates to insert compressed air; Be used to seal the position of door-plate (3) turnover housing unit, prevent that pipeline internal medium from leaking outside.
8. machine feedback coaxial-type coal dust gate as claimed in claim 1; It is characterized in that: the piston rod of said driving cylinder (11) is threaded and is locked with fastening screw nut (9) with the centre bore of connector (8), and the central channel of connector (8) is stuck in the positive top of door-plate (3) and connects fixing with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200052125U CN202546797U (en) | 2012-01-06 | 2012-01-06 | Mechanical feedback coaxial type coal dust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200052125U CN202546797U (en) | 2012-01-06 | 2012-01-06 | Mechanical feedback coaxial type coal dust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202546797U true CN202546797U (en) | 2012-11-21 |
Family
ID=47167421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200052125U Expired - Fee Related CN202546797U (en) | 2012-01-06 | 2012-01-06 | Mechanical feedback coaxial type coal dust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202546797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593548A (en) * | 2015-01-28 | 2015-05-06 | 中国重型机械研究院股份公司 | Hopper sealing cone valve structure |
-
2012
- 2012-01-06 CN CN2012200052125U patent/CN202546797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593548A (en) * | 2015-01-28 | 2015-05-06 | 中国重型机械研究院股份公司 | Hopper sealing cone valve structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202056904U (en) | Double-sealing hot air insulating door with single-latch-plate door plank | |
| CN202546797U (en) | Mechanical feedback coaxial type coal dust valve | |
| CN103590723A (en) | Hot air isolating door of thermal power station coal mill | |
| CN201262094Y (en) | Pneumatic wind door interlocking apparatus for coal mine down-hole air duct | |
| CN201148877Y (en) | Pneumatic power interlock air door | |
| CN107605361B (en) | Sealing door | |
| CN206352433U (en) | A kind of subway half-height automatic platform gates electronic lock | |
| CN207092771U (en) | Energy-conservation and the door closer and fire prevention door drive mechanism for improving durability | |
| CN102330533A (en) | Pneumatic safety underground shielding door | |
| CN201561444U (en) | Triple sealing hot wind isolation door with double plugging boards | |
| CN109138772A (en) | A kind of anti-Hongmen Gate of slide damper formula substation | |
| CN206148801U (en) | A compensation case for platform district low pressure reactive compensation | |
| CN208310536U (en) | A kind of intelligent electric door closer | |
| CN201802237U (en) | Energy-saving lifting and sliding aluminium alloy door system | |
| CN101749048A (en) | Subway siding partition door | |
| CN203361980U (en) | Built-in tension type isolation door | |
| CN210317381U (en) | Novel air door convenient to crane transportation | |
| CN209523652U (en) | A kind of anti-Hongmen Gate of slide damper formula substation | |
| CN207332929U (en) | The mine air door passed through easy to pedestrian | |
| CN202055678U (en) | Control structure for side hung garage door | |
| CN201047239Y (en) | Device used for doors upper and lower part sealing | |
| CN203626520U (en) | Safety-door-based lifting window device | |
| CN203686197U (en) | Double-plugboard hot-air-isolating door | |
| CN204941111U (en) | Turnover door supporting mechanism | |
| CN103362423A (en) | Internal tension type isolation door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160106 |