CN212106981U - Flue partition valve - Google Patents
Flue partition valve Download PDFInfo
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- CN212106981U CN212106981U CN202020665869.9U CN202020665869U CN212106981U CN 212106981 U CN212106981 U CN 212106981U CN 202020665869 U CN202020665869 U CN 202020665869U CN 212106981 U CN212106981 U CN 212106981U
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- guide chain
- chain
- fixed pulley
- flue
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Abstract
The utility model provides a flue cuts off valve, include: the device comprises a horizontal flue, a supporting frame, an inserting plate door, a left single-wheel fixed pulley, a right single-wheel fixed pulley, a left double-wheel fixed pulley, a right double-wheel fixed pulley, an electric chain guide unit, a manual chain guide unit, a left connector and a right connector; the electric guide chain unit comprises a first guide chain, a second guide chain, an electric guide chain rotating shaft and an electric guide chain driving mechanism. The utility model provides a pair of flue cuts off valve has the horizontal flue of electronic switching through electronic chain realization of leading simultaneously to and realize the manual condition of cutting off the flue through manual chain of leading under the emergency, improved the reliability that the flue cuts off the valve and uses. Through this application, the scene has reached effectual wall flue gas and one-man operation picture peg door, has saved a large amount of precious manpowers.
Description
Technical Field
The utility model belongs to the technical field of the flue cuts off control, concretely relates to flue cuts off valve.
Background
The flue of the existing power generation enterprise generally needs to be provided with a flue partition valve, and the flue is closed or opened through the flue partition valve, so that the opening and closing states of the flue are effectively controlled. At present, a shutter type electric baffle valve is generally adopted for a flue partition valve, and the following problems are solved: because the environment dust of power generation enterprises is more, consequently, the inevitable ash scale that has hung in the shutter gap causes the unable complete closure of electronic baffle valve, has reduced the operational reliability of flue partition valve.
SUMMERY OF THE UTILITY MODEL
The defect to prior art existence, the utility model provides a flue cuts off valve can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a flue cuts off valve, include: the device comprises a horizontal flue (1), a supporting frame (2), an inserting plate door (3), a left single-wheel fixed pulley (4), a right single-wheel fixed pulley (5), a left double-wheel fixed pulley (6), a right double-wheel fixed pulley (7), an electric chain guide unit (8), a manual chain guide unit (9), a left connector (10) and a right connector (11);
a through hole (1A) for the insertion plate door (3) to pass through is transversely formed in a set position at the top of the horizontal flue (1); the top of the horizontal flue (1) is fixedly provided with the supporting frame (2); the left single-wheel fixed pulley (4) and the right single-wheel fixed pulley (5) are symmetrically arranged on the left side and the right side of the top of the supporting frame (2); the left double-wheel fixed pulley (6) is arranged right below the left single-wheel fixed pulley (4); the right double-wheel fixed pulley (7) is arranged right below the right single-wheel fixed pulley (5);
the electric guide chain unit (8) comprises a first guide chain (8-1), a second guide chain (8-2), an electric guide chain rotating shaft (8-3) and an electric guide chain driving mechanism; the inserting plate door (3) and the through hole (1A) are arranged in a sliding mode; one end of the first guide chain (8-1) is fixed with the left end of the top of the inserting plate door (3), and the other end of the first guide chain (8-1) sequentially rounds the left single-wheel fixed pulley (4) and the inner wheel of the left double-wheel fixed pulley (6) and then is wound on the electric guide chain rotating shaft (8-3); one end of the second guide chain (8-2) is fixed with the right end of the top of the inserting plate door (3), and the other end of the second guide chain (8-2) sequentially rounds the right single-wheel fixed pulley (5) and the inner wheel of the right double-wheel fixed pulley (7) and then is wound on the electric guide chain rotating shaft (8-3); the electric guide chain driving mechanism is connected with the electric guide chain rotating shaft (8-3) and is used for driving the electric guide chain rotating shaft (8-3) to rotate;
the left connector (10) is fixed with the left side of the inserting plate door (3) at an upper position; the right connector (11) is fixed with the upper position of the right side of the inserting plate door (3); the manual chain guide unit (9) comprises a third chain guide (9-1), a fourth chain guide (9-2) and a manual chain guide rotating shaft (9-3); one end of the third guide chain (9-1) is fixed with the left connector (10), and the other end of the third guide chain (9-1) winds on the manual guide chain rotating shaft (9-3) after winding around the outer wheel of the left double-wheel type fixed pulley (6); one end of the fourth guide chain (9-2) is fixed with the right connector (11), and the other end of the fourth guide chain (9-2) winds on the manual guide chain rotating shaft (9-3) after passing around the outer wheel of the right double-wheel type fixed pulley (7).
Preferably, the device also comprises a flue sealing ring (12); the flue sealing ring (12) is fixed on the inner wall of the through hole (1A).
Preferably, a top rain protection device (13); the top rain-proof device (13) is in an umbrella shape and is fixed at the top of the supporting frame (2).
Preferably, the full-open limiting safety device also comprises a plug board door full-open limiting safety device (14); the full-open limiting safety device (14) of the inserting plate door is fixed at the upper position of the supporting frame (2).
The utility model provides a flue cuts off valve has following advantage:
the utility model provides a pair of flue cuts off valve has the horizontal flue of electronic switching through electronic chain realization of leading simultaneously to and realize the manual condition of cutting off the flue through manual chain of leading under the emergency, improved the reliability that the flue cuts off the valve and uses. Through this application, the scene has reached effectual wall flue gas and one-man operation picture peg door, has saved a large amount of precious manpowers.
Drawings
Fig. 1 is a schematic structural view of a flue partition valve provided by the present invention;
fig. 2 is a schematic view of an installation manner of the flue partition valve provided by the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a flue cuts off valve, refer to fig. 1 and fig. 2, include: the device comprises a horizontal flue 1, a supporting frame 2, an inserting plate door 3, a left single-wheel fixed pulley 4, a right single-wheel fixed pulley 5, a left double-wheel fixed pulley 6, a right double-wheel fixed pulley 7, an electric chain guide unit 8, a manual chain guide unit 9, a left connector 10 and a right connector 11;
the horizontal flue 1 is horizontally arranged, and a through hole 1A for the insertion plate door 3 to pass through is transversely formed at a set position at the top of the horizontal flue 1; wherein, the spile door 3 can adopt a carbon steel plate with the thickness of 10mm as a partition main body for partitioning the smoke; a supporting frame 2 is fixedly arranged at the top of the horizontal flue 1; in practical application, 10# channel steel can be used as a support frame of the inserting plate door, and a left single-wheel fixed pulley 4 and a right single-wheel fixed pulley 5 are symmetrically arranged on the left side and the right side of the top of the support frame 2; a left double-wheel fixed pulley 6 is arranged right below the left single-wheel fixed pulley 4; a right double-wheel fixed pulley 7 is arranged right below the right single-wheel fixed pulley 5;
the electric guide chain unit 8 comprises a first guide chain 8-1, a second guide chain 8-2, an electric guide chain rotating shaft 8-3 and an electric guide chain driving mechanism; the inserting plate door 3 is arranged with the through hole 1A in a sliding manner; one end of a first guide chain 8-1 is fixed with the left end of the top of the inserting plate door 3, and the other end of the first guide chain 8-1 sequentially rounds inner wheels of a left single-wheel fixed pulley 4 and a left double-wheel fixed pulley 6 and then is wound on an electric guide chain rotating shaft 8-3; one end of a second guide chain 8-2 is fixed with the right end of the top of the inserting plate door 3, and the other end of the second guide chain 8-2 is wound on the upper surface of the electric guide chain rotating shaft 8-3 after sequentially passing around the inner wheels of the right single-wheel fixed pulley 5 and the right double-wheel fixed pulley 7; the electric guide chain driving mechanism is connected with the electric guide chain rotating shaft 8-3 and is used for driving the electric guide chain rotating shaft 8-3 to rotate;
the left connector 10 is fixed with the left upper position of the inserting plate door 3; the right connector 11 is fixed with the upper position of the right side of the inserting plate door 3; the manual guide chain unit 9 comprises a third guide chain 9-1, a fourth guide chain 9-2 and a manual guide chain rotating shaft 9-3; one end of a third guide chain 9-1 is fixed with the left connector 10, and the other end of the third guide chain 9-1 winds on the upper surface of the manual guide chain rotating shaft 9-3 after winding around the outer wheel of the left double-wheel type fixed pulley 6; one end of a fourth guide chain 9-2 is fixed with the right connector 11, and the other end of the fourth guide chain 9-2 winds on the manual guide chain rotating shaft 9-3 after passing around the outer wheel of the right double-wheel type fixed pulley 7.
The utility model provides a pair of flue cuts off valve, its theory of operation is:
(1) under a normal working state, when the horizontal flue 1 needs to be opened, the electric guide chain unit 8 is operated, the electric guide chain driving mechanism drives the electric guide chain rotating shaft 8-3 to rotate, so that the bottoms of the first guide chain 8-1 and the second guide chain 8-2 are continuously wound on the electric guide chain rotating shaft 8-3, the inserting plate door 3 is lifted upwards under the action of the first guide chain 8-1 and the second guide chain 8-2, and the horizontal flue 1 is opened by the inserting plate door 3.
When the horizontal flue 1 needs to be cut off, the electric guide chain rotating shaft 8-3 is rotated reversely, so that the first guide chain 8-1 and the second guide chain 8-2 are released, and therefore, under the action of the self gravity of the inserting plate door 3, the inserting plate door 3 falls down and cuts off the horizontal flue 1.
(2) Because equipment operational environment is comparatively abominable, for preventing that the slide is blocked to the ash scale, cause the picture peg door can't close horizontal flue 1 through self gravity decline, this application additionally sets up manual chain unit 9 and connector of leading.
Specifically, when the electric guide chain cannot close the horizontal flue 1, the manual guide chain rotating shaft 9-3 is manually operated to rotate the manual guide chain rotating shaft 9-3, so that the bottom ends of the third guide chain 9-1 and the fourth guide chain 9-2 are continuously wound on the manual guide chain rotating shaft 9-3, the top ends of the third guide chain 9-1 and the fourth guide chain 9-2 pull the connector to move downwards, and when the connector moves downwards, the connector is fixedly connected with the inserting plate door 3, so that the inserting plate door 3 moves downwards, and the inserting plate door 3 is closed by overcoming friction under the action of external force. When the manual guide chain is used, the electric guide chain is not unhooked, the electric guide chain properly relaxes certain upward force for the inserting plate door 3, and the inserting plate door 3 is prevented from directly falling to the bottom of the flue to damage equipment.
Therefore, the manual chain guide unit is used in an emergency state that the inserting plate door is jammed and cannot be closed in a fully-opened state, and a pulling force in a downward direction is applied to the inserting plate door through the manual chain guide. In addition, when the manual guide chain increases the pulling force, the electric guide chain gives stable upward friction force, and the situation that the inserting plate door directly generates large impact force downwards to damage equipment is avoided.
In addition, the following innovation is also carried out in the application:
(1) also includes a flue sealing ring 12; the flue seal ring 12 is fixed to the inner wall of the through hole 1A.
Specifically, the sealing material of the flue sealing ring 12 adopts soft wool felt, and has two advantages: first, the soft wool felt resistance is little, can not cause the picture peg door resistance to increase because of sealed. Secondly, the soft wool felt has good sealing effect, and can not cause a large amount of smoke to leak due to poor sealing.
(2) Also comprises a top rain protection device 13; the top rain protection 13 is umbrella shaped and is fixed to the top of the support frame 2.
The purpose of arranging a rainproof device at the top is to prevent the upper fixed pulley and the steel cable from being rusted due to long-term exposed leakage.
(3) The full-open limiting safety device 14 of the inserting plate door is further included; the full-open limit safety device 14 of the inserting plate door is fixed at the upper position of the supporting frame 2.
Specifically, when the inserting plate door is lifted upwards, the lifting maximum height of the inserting plate door is limited through the inserting plate door full-open limiting safety device 14, and the inserting plate door is prevented from being completely separated from the horizontal flue 1. The full-open limiting safety device 14 of the inserting plate door is a guarantee measure of the application and can be realized by using zinc-plated carbon equilateral angle steel of less than 50 degrees.
The utility model provides a pair of flue cuts off valve has following advantage:
the utility model provides a pair of flue cuts off valve has the horizontal flue of electronic switching through electronic chain realization of leading simultaneously to and realize the manual condition of cutting off the flue through manual chain of leading under the emergency, improved the reliability that the flue cuts off the valve and uses. Through this application, the scene has reached effectual wall flue gas and one-man operation picture peg door, has saved a large amount of precious manpowers.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (4)
1. A flue shutoff valve, comprising: the device comprises a horizontal flue (1), a supporting frame (2), an inserting plate door (3), a left single-wheel fixed pulley (4), a right single-wheel fixed pulley (5), a left double-wheel fixed pulley (6), a right double-wheel fixed pulley (7), an electric chain guide unit (8), a manual chain guide unit (9), a left connector (10) and a right connector (11);
a through hole (1A) for the insertion plate door (3) to pass through is transversely formed in a set position at the top of the horizontal flue (1); the top of the horizontal flue (1) is fixedly provided with the supporting frame (2); the left single-wheel fixed pulley (4) and the right single-wheel fixed pulley (5) are symmetrically arranged on the left side and the right side of the top of the supporting frame (2); the left double-wheel fixed pulley (6) is arranged right below the left single-wheel fixed pulley (4); the right double-wheel fixed pulley (7) is arranged right below the right single-wheel fixed pulley (5);
the electric guide chain unit (8) comprises a first guide chain (8-1), a second guide chain (8-2), an electric guide chain rotating shaft (8-3) and an electric guide chain driving mechanism; the inserting plate door (3) and the through hole (1A) are arranged in a sliding mode; one end of the first guide chain (8-1) is fixed with the left end of the top of the inserting plate door (3), and the other end of the first guide chain (8-1) sequentially rounds the left single-wheel fixed pulley (4) and the inner wheel of the left double-wheel fixed pulley (6) and then is wound on the electric guide chain rotating shaft (8-3); one end of the second guide chain (8-2) is fixed with the right end of the top of the inserting plate door (3), and the other end of the second guide chain (8-2) sequentially rounds the right single-wheel fixed pulley (5) and the inner wheel of the right double-wheel fixed pulley (7) and then is wound on the electric guide chain rotating shaft (8-3); the electric guide chain driving mechanism is connected with the electric guide chain rotating shaft (8-3) and is used for driving the electric guide chain rotating shaft (8-3) to rotate;
the left connector (10) is fixed with the left side of the inserting plate door (3) at an upper position; the right connector (11) is fixed with the upper position of the right side of the inserting plate door (3); the manual chain guide unit (9) comprises a third chain guide (9-1), a fourth chain guide (9-2) and a manual chain guide rotating shaft (9-3); one end of the third guide chain (9-1) is fixed with the left connector (10), and the other end of the third guide chain (9-1) winds on the manual guide chain rotating shaft (9-3) after winding around the outer wheel of the left double-wheel type fixed pulley (6); one end of the fourth guide chain (9-2) is fixed with the right connector (11), and the other end of the fourth guide chain (9-2) winds on the manual guide chain rotating shaft (9-3) after passing around the outer wheel of the right double-wheel type fixed pulley (7).
2. The flue partition valve of claim 1 further comprising a flue seal (12); the flue sealing ring (12) is fixed on the inner wall of the through hole (1A).
3. The flue partition valve of claim 1 further comprising a top flashing (13); the top rain-proof device (13) is in an umbrella shape and is fixed at the top of the supporting frame (2).
4. The flue partition valve of claim 1 further comprising a spile door full open limit guard (14); the full-open limiting safety device (14) of the inserting plate door is fixed at the upper position of the supporting frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020665869.9U CN212106981U (en) | 2020-04-27 | 2020-04-27 | Flue partition valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020665869.9U CN212106981U (en) | 2020-04-27 | 2020-04-27 | Flue partition valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106981U true CN212106981U (en) | 2020-12-08 |
Family
ID=73617816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020665869.9U Active CN212106981U (en) | 2020-04-27 | 2020-04-27 | Flue partition valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106981U (en) |
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2020
- 2020-04-27 CN CN202020665869.9U patent/CN212106981U/en active Active
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