CN219199226U

CN219199226U - Flue gate

Info

Publication number: CN219199226U
Application number: CN202320104238.3U
Authority: CN
Inventors: 张书昌; 张晓�; 刘长辉; 周月
Original assignee: Shandong Maijinli Environmental Protection Equipment Co ltd
Current assignee: Shandong Maijinli Environmental Protection Equipment Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-16
Anticipated expiration: 2033-02-03

Abstract

The utility model relates to the technical field of valves, and particularly discloses a flue gate. The device comprises a PLC control system and a portal frame, wherein a gate is arranged on the portal frame and consists of a plurality of door panels, the upper door panel and the lower door panel are lapped together, a locking ring is arranged at the upper end of the gate, the locking ring is matched with a hanging ring and a locking cylinder, and each door panel is matched with a locking device and a damping device. The utility model is always positioned at the lower half part of the portal frame when not in use, and is not always suspended in the air like the prior art, thereby reducing the applied external force and enhancing the safety; simultaneously, after the door is closed, each door plate is locked by the locking device, so that the gravity of the whole gate is dispersed, and the applied external force supporting effect can be reduced; the damping groove and the damping plate can slow down the falling speed of the door plate and enhance the safety.

Description

Flue gate

Technical Field

The utility model relates to the technical field of valves, in particular to a 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. In the prior art, the flue gate is opened upwards, and in the working process, the gate is always suspended in the air, that is to say, external force is always required to be applied to overcome the gravity of the gate, and the flue gate is unsafe for a long time.

Disclosure of Invention

The utility model provides a flue gate with the advantages of lower gate, upward opening and closing and high safety coefficient, which overcomes the defects of the prior art.

The utility model is realized by the following technical scheme:

the flue gate comprises a PLC control system and a gate frame, wherein the gate frame is provided with the gate in a sliding sealing manner, and is characterized in that the gate is formed by sliding sealing connection of a plurality of gate plates, the upper end of each gate plate is of a T shape, the lower end of each gate plate is of an L shape, and when the gate is closed, the L shape at the lower end is overlapped with the T shape at the upper end in a sealing manner; a locking device is arranged between adjacent door plates, and the locking device comprises: the sensor is positioned on the moving track of the last door plate, the spring lock is arranged on the moving track of the next door plate, a T-shaped rod is arranged at the outer end of the spring lock, a micro cylinder is arranged beside the spring lock, a circular ring is fixedly arranged at the output end of the micro cylinder, and the circular ring is sleeved on the T-shaped rod; an abutting plate is arranged below the upper end of the portal, a gap for the uppermost door plate to come in and go out is reserved in the middle of the abutting plate, and a sealing adhesive tape is arranged at the gap; the sensor and the micro cylinder are respectively and electrically connected with the PLC control system.

The door frame is provided with a double-output-shaft motor, and the double-output-shaft motor is connected with the door plate at the uppermost end through a traction rope.

The inside travel switch that is equipped with of portal, the portal upper end lower surface is equipped with the locking cylinder, the output of locking cylinder sets firmly the locking lever, is equipped with the locking ring on the door plant of uppermost, travel switch, locking cylinder respectively with PLC control system electric connection.

And a protective cover surrounding the cylinder lock and the micro cylinder is arranged on the outer side of the portal frame.

A plurality of damping grooves are formed in the inner side of the door frame and on the moving track of each door plate, a damping plate is arranged at the top end of the middle door plate, and a spring top bead is arranged on the damping plate.

The beneficial effects of the utility model are as follows:

the utility model is always positioned at the lower half part of the portal frame when not in use, and is not always suspended in the air like the prior art, thereby reducing the applied external force and enhancing the safety; simultaneously, after the door is closed, each door plate is locked by the locking device, so that the gravity of the whole gate is dispersed, and the applied external force supporting effect can be reduced; the damping groove and the damping plate can slow down the falling speed of the door plate and enhance the safety.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the front view structure of the present utility model in use;

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. 2;

FIG. 4 is a schematic left-hand structural view of the intermediate door panel of FIG. 1;

FIG. 5 is a schematic top view of the splice plate of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the structure of FIG. 5 in the direction C-C;

fig. 7 is a schematic cross-sectional view of a portion of the protective cover.

In the figure, 1 portal, 2 initiative door plant, 3 intermediate door plant, 4 fixed door plant, 5 haulage rope, 6 double output shaft motor, 7 lock ring, 8 locking cylinder, 9 locking lever, 10 portal ring, 11 travel switch, 12 sensor, 13 cylinder lock, 14T type pole, 15 microcylinder, 16 ring, 17 safety cover, 18 butt plate, 19 joint strip, 20 damping groove, 21 damping plate, 22 spring top pearl.

Detailed Description

The drawings illustrate specific embodiments of the utility model. As shown in fig. 1 to 7, the flue gate comprises a PLC control system and a door frame 1, wherein the operation of the whole equipment is controlled by the PLC control system, and the difference from a common gate is that the gate is positioned at the lower half part of the door frame 1 after being opened. The gate is formed by sliding and sealing connection of a plurality of door plates, and we respectively name the door plates as: the driving door plate 2 at the uppermost end, a plurality of middle door plates 3 in the middle and a fixed door plate 4 at the lowermost end, wherein the fixed door plate 4 is fixedly connected with the door frame 1, the driving door plate 2 is connected with the output end of a double-output-shaft motor 6 through two traction ropes 5, and the double-output-shaft motor 6 is fixedly arranged at the upper end of the door frame 1; two locking rings 7 are fixedly arranged at the upper end of the driving door plate 2, a locking cylinder 8 is arranged on the lower surface of the upper end of the door frame 1, a locking rod 9 is fixed at the output end of the locking cylinder 8, after the output end of the locking cylinder 8 stretches out, the locking rod 9 is inserted into the locking ring 7, a door ring 10 can be arranged on the lower surface of the upper end of the door frame 1, after the driving door plate 2 ascends, the door ring 10 is overlapped with the locking ring 7, and the locking rod 9 is inserted into the locking ring 7 and the door ring 10 together. A travel switch 11 is arranged on the side face of the portal 1, after the travel switch 11 is touched in the ascending process of the driving door plate 2, the locking ring 7 and the door ring 10 are just overlapped, the double-output-shaft motor 6 stops running, and the locking cylinder 8 extends out to enable the locking rod 9 to be inserted into the locking ring 7 and the door ring 10.

The double output shaft motor 6 can also be replaced by two windlass, and the windlass is provided with a brake device.

The upper ends of the driving door plate 2, the middle door plate 3 and the fixed door plate 4 are T-shaped, the lower ends of the driving door plate 2 and the middle door plate 3 are L-shaped, the upper ends and the lower ends between two adjacent door plates can be lapped together, and sealing is realized through sealing pieces such as sealing strips.

The locking means are arranged between adjacent door panels, but the locking means may be one, but preferably two, on one side, i.e. between the active door panel 2 and the first intermediate door panel 3, between adjacent intermediate door panels 3, and not between the lowermost intermediate door panel 3 and the fixed door panel 4. This locking device includes: a sensor 12 and a spring lock 13 mounted on the door frame 1, wherein the inclined surface of the inner end of the spring lock 13 faces downwards, the sensor 12 is mounted on the moving track of the last door plate, and the spring lock 13 is mounted on the moving track of the next door plate, such as: the sensor 12 is arranged between the driving door plate 2 and the first middle door plate 3, the spring lock 13 is arranged on the moving track of the driving door plate 2, the T-shaped top of the middle door plate 3 passes through the spring lock 13, the spring lock 13 supports the T-shaped top, the main part of the spring lock 13 is arranged on the outer side of the door frame 1, then a hole is drilled on the door frame 1, the outer end of the spring lock 13 is fixedly provided with a T-shaped rod 14, a micro cylinder 15 is fixedly arranged beside the spring lock 13, the output end of the micro cylinder 15 is fixedly provided with a circular ring 16, the circular ring 16 is sleeved on the T-shaped rod 14, the stroke of the micro cylinder 15 is enough to enable the spring lock 13 to be completely withdrawn, the movement of the middle door plate 3 is not affected, a protective cover 17 is arranged outside each locking device, and the protective cover 17 can be in sealing installation through sealing rubber strips 19 and the like and the door frame 1.

The sensor 12 mounting location may be such that: when the gate is closed, the sensor 12 is located below the upper end of the T-shape, that is, when the upper door panel falls down a little, the sensor 12 can be triggered, and the mini cylinder 15 drives the cylinder lock 13 to retract, so that the limit on the door panel is lost, and the door panel can fall down.

An abutting plate 18 is arranged below the upper end of the portal 1, the abutting plate 18 is used for abutting with a flue, a gap for the access of the driving door plate 2 is reserved in the middle of the abutting plate 18, and a sealing adhesive tape 19 is arranged at the gap. As shown in fig. 5 and 6, the butt plate 18 is actually formed by two plates being butt-joined together.

In order to prevent the intermediate door panel 3 from being too fast in the falling process, a damping device is further provided: a plurality of damping grooves 20 are formed in the inner side of the door frame 1, the damping grooves 20 are distributed on the moving track of each middle door plate 3, a damping plate 21 is arranged at the T-shaped upper end of each middle door plate 3, and spring top beads 22 are arranged on the damping plate 21.

The use process is as follows:

when the gate is open, all the panels fall to the bottom, below the flue, and the portion above the abutment plate 18 is above the flue. When a flue needs to be cleaned, a PLC control system is started, a double-output shaft motor 6 starts to drive a driving door plate 2 to ascend, in the ascending process, when the lower end of an L shape of the double-output shaft motor touches the T-shaped upper end of a middle door plate 3, the middle door plate 3 is driven to ascend together, so that all the middle door plates 3 are sequentially driven to ascend, when the driving door plate 2 touches a travel switch 11, all the door plates are in a closed state to form a whole, namely a complete gate, at the moment, the T-shaped upper end of the middle door plate 3 passes over a spring lock 13 and then is lapped on the spring lock 13, the spring lock 13 plays a supporting role, the double-output shaft stops running, a locking ring 7 is overlapped with a door ring 10, a locking cylinder 8 starts, a locking rod 9 stretches out to pass through the locking ring 7 and the door ring 10 to play a supporting role, and thus the weight of the whole gate is jointly born by the locking rod 9 and the spring lock 13, the gravity is dispersed, and the safety factor can be increased. After the flue is cleaned, the PLC control system is started again, the locking cylinder 8 is retracted, the locking rod 9 is driven to retract, the double-output shaft motor 6 is started, the driving door plate 2 is downwards placed, when the driving door plate 2 reaches the sensor 12 below the T-shaped upper end of the driving door plate, the sensor 12 sends out a signal, the micro cylinder 15 at the first middle door plate 3 is controlled by the PLC control system to start, the ball lock 13 is driven to retract, the middle door plate 3 freely falls, the falling speed can be slowed down due to the damping action of the spring top beads 22 and the damping grooves 20 in the falling process, and in this way, the driving door plate 2 and the middle door plate 3 fall in sequence until the initial state is restored.

The technical features are known to those skilled in the art except the technical features described in the specification.

Claims

1. The flue gate comprises a PLC control system and a gate frame (1), wherein the gate frame (1) is provided with the gate in a sliding sealing manner, and is characterized in that the gate is formed by sliding and sealing connection of a plurality of door plates, the upper end of each door plate is of a T shape, the lower end of each door plate is of an L shape, and when the gate is closed, the L shape of the lower end is overlapped with the T shape of the upper end in a sealing manner; a locking device is arranged between adjacent door plates, and the locking device comprises: the sensor (12) and the cylinder lock (13) are arranged on the portal frame (1), the sensor (12) is positioned on the moving track of the last door plate, the cylinder lock (13) is arranged on the moving track of the next door plate, the outer end of the cylinder lock (13) is provided with a T-shaped rod (14), a micro cylinder (15) is arranged beside the cylinder lock (13), the output end of the micro cylinder (15) is provided with a circular ring (16), and the circular ring (16) is sleeved on the T-shaped rod (14); an abutting plate (18) is arranged below the upper end of the portal (1), a gap for the uppermost door plate to come in and go out is reserved in the middle of the abutting plate (18), and a sealing adhesive tape (19) is arranged at the gap; the sensor (12) and the micro cylinder (15) are respectively and electrically connected with the PLC control system.

2. The flue gate according to claim 1, characterized in that the gantry (1) is provided with a double output shaft motor (6), and the double output shaft motor (6) is connected with the uppermost door plate through a traction rope (5).

3. The flue gate according to claim 2, characterized in that a travel switch (11) is arranged on the inner side of the door frame (1), a locking cylinder (8) is arranged on the lower surface of the upper end of the door frame (1), a lock rod (9) is fixedly arranged at the output end of the locking cylinder (8), a locking ring (7) is arranged on the door plate at the uppermost end, and the travel switch (11) and the locking cylinder (8) are respectively electrically connected with the PLC control system.

4. The flue gate according to claim 1, characterized in that the outside of the door frame (1) is provided with a protective cover (17) enclosing the cylinder lock (13) and the microcylinder (15).

5. The flue gate according to claim 1, wherein a plurality of damping grooves (20) are formed in the inner side of the door frame (1) on the moving track of each door plate, a damping plate (21) is arranged at the top end of the middle door plate, and a spring top bead (22) is arranged on the damping plate (21).