CN219493074U - Rotary flue gate - Google Patents
Rotary flue gate Download PDFInfo
- Publication number
- CN219493074U CN219493074U CN202320251116.7U CN202320251116U CN219493074U CN 219493074 U CN219493074 U CN 219493074U CN 202320251116 U CN202320251116 U CN 202320251116U CN 219493074 U CN219493074 U CN 219493074U
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- gate
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- shaped
- hole
- rotary
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Abstract
The utility model relates to the technical field of valves, and particularly discloses a rotary flue gate. The device comprises a portal, wherein a gate is arranged on the portal, one side of the portal is provided with a rotating shaft, and the gate is fixed on the rotating shaft; the upper end of the portal is provided with an arc-shaped through hole, the upper end of the gate extends out of the connecting part, the connecting part extends out of the arc-shaped through hole and is connected with an arc-shaped rack, the arc-shaped rack is meshed with a rotating gear, and the rotating gear is driven by a driving mechanism to rotate; the arc-shaped rack is in a cylinder shape with a downward opening and is in sealing connection with the arc-shaped through hole, and the central angle of the arc-shaped rack is larger than that of the arc-shaped through hole. The utility model sets the gate to be rotary, the opening and closing of the gate are completed in the portal, namely in the flue, the space outside the flue is not occupied completely, and meanwhile, the gate is rotary to be opened and closed, and only rotates in the horizontal plane, and is not suspended in the air like the prior art, thus the applied external force can be reduced, and the safety is enhanced.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a rotary flue gate.
Background
The chemical industry generally produces a lot of harmful waste gas during production, and the waste gas is directly discharged into the atmosphere without treatment, so that serious air pollution is caused. Therefore, the harmful waste gas needs to be subjected to harmless treatment, when the harmless treatment unit fails or is in daily maintenance, the flue needs to be closed to prevent the harmful waste gas from being leaked, and at the moment, a flue gate is needed to control the opening and closing of the flue. The flue gate in the prior art is opened upwards, and in the working process, the gate is always suspended in the air, that is to say, the gravity of the gate is always needed to be overcome by applying external force, the time is quite unsafe, and the door frame of the flue gate needs at least two heights of the gate, so that the flue gate occupies space.
Disclosure of Invention
The utility model provides a rotary flue gate which occupies small space and has high opening and closing safety coefficient in order to make up the defects of the prior art.
The utility model is realized by the following technical scheme:
the rotary flue gate comprises a gate frame, wherein the gate frame is provided with a gate, and is characterized in that one side of the gate frame is provided with a rotating shaft, and the gate is fixed on the rotating shaft; the upper end of the portal frame is provided with an arc through hole, the upper end of the gate extends out of the connecting part, the connecting part extends out of the arc through hole and is connected with an arc rack, the arc rack is meshed with a rotating gear, and the rotating gear is driven by a driving mechanism to rotate; the arc-shaped rack and the arc-shaped through hole are sealed in a sliding mode, and the central angle of the arc-shaped rack is larger than that of the arc-shaped through hole.
The central angle of the arc through hole is 90 degrees.
An inner frame is arranged in the door frame, and sealing can be achieved between the inner frame and the gate.
The connecting portion is located at one half of the width of the gate.
The driving mechanism is a motor.
And a protective cover is arranged outside the rotating shaft.
The arc-shaped rack is in a cylinder shape with a downward opening.
The upper end of the portal frame is provided with an anti-leakage auxiliary cover, and the driving mechanism is arranged on the auxiliary cover.
And travel switches are respectively arranged at two ends of the motion track of the arc-shaped rack.
The beneficial effects of the utility model are as follows:
the utility model sets the gate to be rotary, the opening and closing of the gate are completed in the portal, namely in the flue, the space outside the flue is not occupied completely, and meanwhile, the gate is rotary to be opened and closed, and only rotates in the horizontal plane, and is not suspended in the air like the prior art, thus the applied external force can be reduced, and the safety is enhanced.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a closed front view structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 in the direction A-A;
FIG. 3 is a schematic cross-sectional view of the B-B direction of FIG. 1;
fig. 4 is a schematic cross-sectional structure in the direction C-C in fig. 3.
In the drawing, 1 portal, 2 gate, 3 axis of rotation, 4 arc through-holes, 5 safety cover, 6 arc rack, 7 inside casing, 8 change gear, 9 sprocket, 10 motor, 11 main gear, 12 chain, 13 auxiliary cover, 14 travel switch.
Detailed Description
The drawings illustrate specific embodiments of the utility model. As shown in fig. 1 to 4, the rotary flue gate comprises a gate frame 1 and a gate 2 arranged on the gate frame 1, wherein the gate frame 1 and the gate 2 can be sealed, one side of the gate 2 is arranged on the side surface of the gate frame 1 through a rotating shaft 3, and the gate rotates downstream of the drifting wind direction of flue gas when opened; the arc-shaped through hole 4 is formed on the rotating track of the upper end of the gate 2, the central angle of the arc-shaped through hole 4 is preferably 90 degrees, that is, the rotating angle of the gate 2 is 90 degrees, the arc-shaped through hole 4 is preferably positioned at one half of the rotating radius of the gate 2, then a connecting part is extended from the upper end of the gate 2, the connecting part is connected with an arc-shaped rack 6, the central angle of the arc-shaped rack 6 is slightly larger than the central angle of the arc-shaped through hole 4, the arc-shaped rack 6 is in a cylinder shape (namely a block flat plate) with a downward opening, and when the arc-shaped rack 6 covers the arc-shaped through hole 4 completely, the arc-shaped through hole 4 can be sealed.
The outer surface of the rotating shaft 3 is covered with a protective cover 5, and the protective cover 5 is integrally manufactured with the door frame 1.
An inner frame 7 is arranged on the inner side of the door frame 1, and sealing can be realized between the inner frame 7 and the gate 2.
The teeth of the arc-shaped rack 6 are located on the inner side and are in meshed connection with a rotary gear 8 on the inner side.
The rotary gear 8 is coaxially provided with a chain wheel 9, a motor 10 is arranged beside the rotary gear 8, the motor 10 can be a swinging motor, the swinging angle of the motor is adjustable, the output end of the motor 10 faces downwards, then a main gear 11 is arranged at the output end of the motor 10, and a transmission link is realized between the main gear 11 and the rotary gear 8 through a chain 12.
An auxiliary cover 13 can be welded at the upper end of the portal 1 integrally, the arc-shaped rack 6 and the arc-shaped through hole 4 are covered inside, an auxiliary sealing effect is achieved, and the motor 10 can be mounted on the auxiliary cover 13.
Travel switches 14 are respectively arranged at two ends of the movement track of the arc-shaped rack 6. When the arc-shaped rack 6 touches the travel switch 14, the travel switch 14 sends a signal to the control system, and the control system controls the motor 10 to stop rotating. The activation of the motor 10 may be controlled manually.
When the flue is in an unblocked state, the gate 2 is opened and is attached to the inner wall of the door frame 1, and the arc-shaped rack 6 seals the arc-shaped through hole 4; when the gate 2 needs to be closed, the motor 10 is started, the motor 10 drives the arc-shaped rack 6 to rotate through the main gear 11 and the rotary gear 8, and the arc-shaped rack 6 drives the gate 2 in the door frame 1 to rotate until the gate 2 is sealed with the inner frame 7. Under the condition that the auxiliary cover 13 is not arranged, after the gate 2 is closed, the inside and the outside of the flue are communicated due to the existence of the arc-shaped through holes 4, but the gate is closed by rotating from the downstream to the upstream of the flue, so that harmful gas is blocked by the gate at the time, and the leakage of the harmful gas cannot be caused. The auxiliary cover 13, if present, also serves as a seal.
The technical features are known to those skilled in the art except the technical features described in the specification.
Claims (8)
1. The rotary flue gate comprises a gate frame (1), wherein a gate (2) is arranged on the gate frame (1), and is characterized in that a rotating shaft (3) is arranged on one side of the gate frame (1), and the gate (2) is fixed on the rotating shaft (3); the upper end of the portal frame (1) is provided with an arc-shaped through hole (4), the upper end of the gate (2) extends out of a connecting part, the connecting part extends out of the arc-shaped through hole (4) and then is connected with an arc-shaped rack (6), the arc-shaped rack (6) is meshed with a rotating gear (8), and the rotating gear (8) is driven to rotate by a driving mechanism; the arc-shaped rack (6) is in sliding seal with the arc-shaped through hole (4), and the central angle of the arc-shaped rack (6) is larger than that of the arc-shaped through hole (4); travel switches (14) are respectively arranged at two ends of the motion track of the arc-shaped rack (6).
2. A rotary flue shutter according to claim 1, wherein the central angle of the arcuate through-hole (4) is 90 °.
3. The rotary flue gate according to claim 1, characterized in that an inner frame (7) is arranged in the door frame (1), and sealing can be realized between the inner frame (7) and the gate (2).
4. A rotary flue damper according to claim 1, wherein the connection is located at one half the width of the damper (2).
5. The rotary flue shutter according to claim 1, wherein the drive mechanism is a motor (10).
6. A rotary flue shutter according to claim 1, characterised in that the rotating shaft is provided with a protective cover (5).
7. The rotary flue shutter according to claim 1, wherein the arcuate rack (6) is cylindrical with a downward opening.
8. A rotary flue shutter according to claim 7, characterised in that the upper end of the door frame (1) is provided with a leak-proof auxiliary hood (13), and the drive mechanism is mounted on the auxiliary hood (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320251116.7U CN219493074U (en) | 2023-02-20 | 2023-02-20 | Rotary flue gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320251116.7U CN219493074U (en) | 2023-02-20 | 2023-02-20 | Rotary flue gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219493074U true CN219493074U (en) | 2023-08-08 |
Family
ID=87479517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320251116.7U Active CN219493074U (en) | 2023-02-20 | 2023-02-20 | Rotary flue gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219493074U (en) |
-
2023
- 2023-02-20 CN CN202320251116.7U patent/CN219493074U/en active Active
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| GR01 | Patent grant |