CN111336539A

CN111336539A - Board-inserting type smoke isolating door

Info

Publication number: CN111336539A
Application number: CN202010341801.XA
Authority: CN
Inventors: 汪浩斌
Original assignee: Zhejiang Yinfa Energy Saving Technology Co ltd
Current assignee: Zhejiang Yinfa Energy Saving Technology Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-06-26
Anticipated expiration: 2040-04-27
Also published as: CN111336539B

Abstract

The invention discloses a plugboard type smoke isolation door which comprises a rectangular door frame and a plugboard door, wherein the rectangular door frame is divided into a sealed door frame and a track frame, the two ends of the sealed door frame are connected and sealed with the inlet end and the outlet end of a rectangular flue, the track frame is used for accommodating the plugboard door which is drawn out, a long through hole for the plugboard door to move linearly is arranged on the transverse partition of the two frames, and a driving mechanism for drawing and inserting the plugboard door is arranged on the rectangular door frame; a movable rectangular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame connected with the outlet end of the flue, a frame type baffle plate which is pressed against the inserting plate door pressed by the end face of the outlet end of the movable rectangular frame to seal is arranged in the sealing door frame, and a driving mechanism used for enabling the movable rectangular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing door frame; the sealing door frame is also provided with an inflatable or deflatable annular air bag device, and the inserting plate door is pressed to the frame type baffle plate to be sealed when the annular air bag device is inflated. This isolated door makes gasbag seal structure can be applied to the picture peg door and double seal is effectual, simple structure, fault rate are low.

Description

Board-inserting type smoke isolating door

Technical Field

The invention relates to the technical field of flue equipment of thermal power plants, in particular to a plug-in plate type flue gas isolation door.

Background

Because of the needs of regularly and irregularly checking and maintaining equipment, all be equipped with the flue gas isolation door between the play flue of thermal power factory and other equipment. The isolation door is also called as an isolation door, or an isolation door or a heat insulation gate plate door. The isolation door is roughly divided into a plug board door and a flap board door, the flue of the plug board door or the cross section of an air channel is circular, namely the plug board door is provided with a circular door frame, but the plug board door is generally rectangular, namely a rectangular door frame is adopted to be matched with a rectangular door.

Along with the promotion of environmental protection projects such as desulfurization of thermal power factory is out of stock, isolated flue gas is always big difficult problem in this system equipment, because of having a large amount of toxic gas and high temperature gas in the flue gas, if close not tight, can cause very big hidden danger to personal safety. And because the flue gas passageway is very big, if big isolation door has more than 100 square meters, because the installation environment is very poor, it is sealed tight more difficult to the isolation door.

The inserting plate type smoke isolation door in the prior art is various in types and different in structure. The prior art has the disadvantages that the sealing structure of the flashboard smoke isolation door in the prior art can only adopt packing and other sealing modes generally because the flashboard door needs to be inserted or pulled out, the sealing structure is relatively complex, and the sealing structure is in a static state, has poor durability, is easy to wear, has relatively high failure rate and short service life, and is particularly not ideal in sealing effect on occasions with high requirements on sealing performance. In addition, for example, in some occasions with high smoke pressure, the effect of sealing by only the air bag is not ideal. In addition, the pulling and inserting structure of the inserting plate door in the prior art is relatively complex, and the material cost and the labor cost for installation and maintenance are not ideal, and the starting flexibility and the working reliability are not ideal.

Disclosure of Invention

The invention aims to solve the technical problem of providing a plugboard type smoke isolation door which can be applied to a plugboard door and has the advantages of good sealing effect and simple sealing structure.

The technical scheme of the invention is that the invention provides a plugboard type smoke isolation door, which comprises a sealing door frame and a plugboard door, wherein the plugboard type smoke isolation door also comprises a holding device which is connected with the sealing door frame and is used for holding the drawn plugboard door; the two ends of the sealing door frame are connected and sealed with the inlet end and the outlet end of the annular flue, a long through hole for the linear movement of the inserting plate door is arranged on the transverse partition of the sealing door frame and the accommodating device, and a driving mechanism for drawing and inserting the inserting plate door is arranged on the accommodating device and the sealing door frame; a movable annular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame, a driving mechanism used for enabling the movable annular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing door frame, and a frame type baffle plate used for blocking the inserting plate door pressed by the movable annular frame to abut against and seal is arranged in the sealing door frame connected with the outlet end of the flue; an annular air bag device capable of being inflated or deflated is arranged in the sealing door frame, an air inlet pipe communicated with a compressed air source and provided with a first valve is arranged on the annular air bag device, and an air outlet pipe communicated with the atmosphere and provided with a second valve is arranged on the annular air bag.

After adopting the structure, the inserting plate type smoke isolation door has the following advantages: because the single surface of the annular air bag in the inflated state presses one surface of the inserting plate door and the other surface of the inserting plate door is pressed on the frame type baffle plate, the defect that the sealing effect of the inserting plate door in the prior art is not ideal because an air bag sealing structure cannot be adopted is overcome, particularly the sealing effect of the annular air bag device in the inflated state and the inserting plate door is very ideal, and the inserting plate door is abutted against the frame type baffle plate to achieve double sealing through the end surface pressing of the outlet end of the movable annular frame, so that the sealing effect is more ideal. The sealing structure of the inserting plate door is dynamic, when the inserting plate door needs to be pulled out or inserted, the movable annular frame is separated from the frame type baffle plate like the movable rectangular frame, the end surface of the movable annular frame is tightly pressed on the upper surface of the inserting plate door when sealing is needed, the lower surface of the inserting plate door is tightly abutted against the frame type baffle plate to be sealed, meanwhile, the sealing structure is also in dynamic state due to the change of the inflation state and the deflation state of the annular air bag device, the annular air bag device is inflated and tightly pressed when sealing is needed to be sealed, the annular air bag is deflated and contracted to be separated from the inserting plate door when the inserting plate door needs to be pulled out, the pulling out or inserting of the inserting plate door is flexible and reliable, the sealing structure is good in durability, not easy to wear, low.

Furthermore, the structure of the driving mechanism which enables the movable annular frame to move along the inlet and outlet direction of the flue is as follows: a plurality of first driving cylinders which act synchronously are arranged on the outer side of the sealing door frame, and a cam component used for driving the movable annular frame to move along the inlet and outlet directions of the flue is hinged to the free end of a first driving rod of each first driving cylinder. After the structure is adopted, the movable annular frame driving mechanism or the pressing mechanism is simple in structure, the material cost and the manual installation and maintenance cost are further saved, the pressing or releasing starting flexibility is good, and the working reliability is high.

Furthermore, two outer sides of the sealing door frame are respectively provided with two first driving cylinders, the free end of a first driving rod of each first driving cylinder is hinged with one end of a connecting arm, the other end of the connecting arm is fixed with a rotating shaft which is in rotating fit with the sealing door frame, the inner end of the rotating shaft penetrating through the sealing door frame is provided with a cam which can stir a first shifting block and drive the movable annular frame to move towards the inlet end of the sealing door frame so as to separate from the inserting plate door or stir a second shifting block and drive the movable annular frame to move towards the outlet end of the sealing door frame so as to press the inserting plate door on the frame type baffle, and the first shifting block and the second shifting block are both fixed on the outer wall of one corner of four corners of the movable. After this movable frame actuating mechanism or hold-down mechanism adopted above concrete structure, the simple structure of cam and the shifting block of mutually supporting, four movable cylinder synchronization motion, four angles of control activity rectangle frame compress tightly or throw off, start the flexibility good, and the operational reliability is strong.

Further, the elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame is as follows: the inner edge of the stainless steel corrugated plate which is inclined upwards and inwards and downwards is fixed and sealed with the top of the inlet end of the movable annular frame, and the outer edge of the stainless steel corrugated plate is fixed and sealed with the top of the inlet end of the sealing door frame. After the structure is adopted, the elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame can ensure that smoke, smoke mixture, dust and the like cannot enter between the movable annular frame and the sealing door frame when the inserting plate door is opened or the pipe is closed. This picture peg formula flue gas isolation door has further guaranteed good sealed effect under the prerequisite of guaranteeing high intensity.

Furthermore, the accommodating device for accommodating the drawn-out inserting plate door is a rectangular track frame, the sealing door frame is a rectangular sealing door frame, the rectangular track frame and the rectangular sealing door frame form an integral rectangular door frame connected by a transverse partition, the movable annular frame is a movable rectangular frame, and the inserting plate door is a rectangular inserting plate door. After the structure is adopted, the track frame and the sealing door frame can be an integral frame which is divided into two sections by a transverse partition, and the rectangular sealing door frame, the movable rectangular frame and the rectangular inserting plate door can adapt to the shape of the universal rectangular section of the flue, so that the good sealing effect and the flexibility of operation of the rectangular flue are ensured.

Furthermore, the half of the sealing door frame close to the track frame is a rectangular door frame, and the half of the sealing door frame far away from the track frame is a semicircular door frame; the movable annular frame is a movable rectangular frame close to the track frame, and a movable semicircular frame far away from the track frame; the half of the inserting plate door close to the track frame is a rectangular door, and the half of the inserting plate door far away from the track frame is a semicircular door. After adopting above structure, both guaranteed good sealed effect and the flexibility of operation, can adapt to the needs of other cross-sectional shapes of flue again.

Furthermore, the annular air bag device comprises an annular air bag, the annular air bag is accommodated in an air bag accommodating frame which is arranged in the sealing door frame and has an opening facing the inserting plate door, and the air inlet pipe and the air outlet pipe penetrate through the wall of the sealing door frame and are communicated with the annular air bag. After the structure is adopted, the structure of the air bag containing frame is simple, materials are saved, the compression direction of the annular air bag inflating state to the inserting plate door is concentrated, the ideal sealing effect is further ensured, and the air bag after being deflated has a good protection effect.

Furthermore, the cross section of the air bag containing frame is Contraband-shaped and consists of an inner wall of a sealing door frame, a first cover plate far away from the inserting plate door and an outer wall of the movable annular frame, and a first flange which can limit the falling of the annular air bag when the annular air bag is in an inflated state and does not interfere with the pressing of the inserting plate door and is in a deflated state is arranged on the outer wall at the outlet end of the movable annular frame; or the air bag containing frame is composed of the inner wall of the sealing door frame, a second cover plate far away from the inserting plate door and a side plate far away from the inner wall of the sealing door frame, and a pair of second flanges which do not hinder the pressing of the inserting plate door when the annular air bag is in an inflated state and can limit the falling of the annular air bag when the annular air bag is in an deflated state are arranged at the free end of the side plate and the inner wall of the sealing door frame. After the structure is adopted, when the inserting plate door is in a horizontal state and the opening of the air bag containing frame faces downwards, the annular air bag can be completely separated from the inserting plate door in an air discharging state, namely, the annular air bag is isolated, the pulling or inserting of the inserting plate door is further ensured to be flexible and reliable, the durability of the sealing structure is better, the inserting plate door is not easy to wear, the failure rate is lower, and the service life is longer.

The annular air bag device comprises an annular air bag frame, the air bag frame is arranged in the sealing door frame, the opening of the air bag frame faces the inserting plate door, the opening of the air bag frame compresses the flat flexible sealing plate or the downward convex flexible sealing plate through the locking screw and the pressing plate of the sealing plate and seals the flat flexible sealing plate or the downward convex flexible sealing plate to form a plenum chamber, and the air inlet pipe and the air outlet pipe are communicated with the annular plenum chamber through the air bag frame. After the structure more than adopting, annular airbag device's structure is simpler, and more material saving, and the installation and maintenance of being more convenient for, and flexible closing plate such as the rubber slab are joined in marriage to rigid gasbag frame, can guarantee good sealed effect, prolong annular airbag device's life again.

Further, first valve and second valve be the solenoid valve, gasbag sealed isolation door still include main control unit, install on sealed door frame and with the communicating pressure sensor of annular gasbag device, install the position sensor on the track frame of keeping away from sealed door frame and install the position sensor on the sealed door frame of keeping away from the track frame, main control unit is connected with pressure sensor, two position sensor and control solenoid valve's relay and the relay electricity of the actuating mechanism of control plug board door of taking out. After adopting above structure, this gasbag seals the degree of automation height of opening or closing of isolating door, and the operation is more simple reliable.

Further, the first specific structure of the driving mechanism of the drawer inserting plate door is as follows: a pair of friction rollers which are used for clamping the inserting plate door on two sides and driving the inserting plate door to move linearly are arranged at the position, close to the transverse partition, of the track frame, two friction roller shafts are rotatably connected to two side frames of the track frame, one end of each of the two friction roller shafts, which extends out of the track frame, is provided with a gear, and the two gears are meshed with each other; the other end of one of the friction roll shafts, which extends out of the track frame, is coaxially connected with a first output shaft of a first rotary driving device fixed on the track frame at the other end; the frame of the track frame is internally provided with a guide rail for the linear movement of the extracted inserting plate door. After the structure above is adopted, the pulling and inserting structure of the inserting plate door is simple, the material cost and the installation cost are relatively saved, the pulling and inserting process is simple and flexible, the influence of dust and the like on the starting or closing is small, the driving structure of the friction roller is simpler, the failure rate is small, and the starting or closing work reliability is high.

Further, the second specific structure of the driving mechanism of the drawer door is as follows: and the track frame far away from the sealing door frame is provided with at least one second driving cylinder, and the free end of a second driving rod of the second driving cylinder is hinged with one end of the inserting plate door extending into the track frame. After the structure is adopted, the material cost and the installation cost are relatively saved, the processes of drawing and inserting are simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the reliability of the starting or closing work is high; compared with the first type, the drawing and inserting structure of the inserting plate door is simpler and is suitable for the use scene that the drawing or inserting distance is relatively short, such as about 3 meters per pass.

Further, the third specific structure of the driving mechanism of the drawer-type inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second rotary driving device, a second output shaft of the second rotary driving device is coaxially connected with a screw rod of which one end penetrates through the frame, and the other end of the screw rod is screwed with a nut fixed at one end of the inserting plate door extending into the track frame. After the structure is adopted, the pulling and inserting structure of the inserting plate door is simple, the material cost and the installation cost are relatively saved, the pulling and inserting process is simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the starting or closing work reliability is high.

Further, the fourth specific structure of the driving mechanism of the drawer door is as follows: the rail frame far away from the sealing door frame is provided with at least one first hoisting device, one end of a first cable is fixed on a first hoisting wheel of the first hoisting device, and the other end of the first cable is fixed on one end of the inserting plate door extending into the rail frame; the sealing door frame far away from the track frame is provided with at least one second hoisting device which synchronously acts with the first hoisting device, a second hoisting wheel of the second hoisting device is fixed with one end of a second cable, the other end of the second cable is fixed at one end of the inserting plate door far away from the track frame, and the first cable and the second cable are coaxial. After the structure is adopted, the material cost and the installation cost are relatively saved, the processes of drawing and inserting are simple and flexible, the starting or closing is slightly influenced by dust and the like, the failure rate is low, and the reliability of the starting or closing work is high; compared with the three types of structures, the pulling force of the structure of the inserting plate door is relatively large, and the structure is suitable for the use scene with relatively large weight of the inserting plate door.

Furthermore, a first supporting seat of the first hoisting device is fixed on the track frame far away from the sealing door frame, a third rotary driving device is arranged on one side of the first supporting seat, a third output shaft of the third rotary driving device is coaxially connected with the first hoisting shaft, two ends of the first hoisting shaft are rotatably connected on the first supporting seat, and a first hoisting wheel is coaxially fixed on the first hoisting shaft; the second supporting seat of the second hoisting device is fixed on the sealing door frame far away from the track frame, a fourth rotary driving device is arranged on one side of the second supporting seat, a fourth output shaft of the fourth rotary driving device is coaxially connected with the second hoisting shaft, two ends of the second hoisting shaft are rotatably connected onto the second supporting seat, and the second hoisting wheel is coaxially fixed on the second hoisting shaft. After the structure is adopted, the first hoisting device and the second hoisting device are relatively compact in structure, high in working reliability, good in stability and relatively large in pulling force, and are suitable for use scenes with relatively large weight of the inserting plate door.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of a driving mechanism for a drawer door in a panel-type smoke isolation door (hereinafter, referred to as a driving mechanism for a drawer door in an isolation door) according to the present invention.

Fig. 2 is a schematic perspective view of the rear surface of the insulated door of fig. 1.

Fig. 3 is a schematic view of an exploded structure of the insulated door of fig. 1 (showing a first specific structure of the ring-shaped airbag apparatus).

Fig. 4 is a front sectional structural view of a first embodiment of a driving mechanism for a drawer door in the present insulated door (showing a first specific structure of an annular airbag device).

Fig. 5 is an enlarged schematic view of a in fig. 4.

Fig. 6 is an enlarged structural view of B in fig. 4.

Fig. 7 is a schematic top view of the driving mechanism of the inserting and pulling door in the isolation door according to the first embodiment.

Fig. 8 is a front sectional view schematically showing a second embodiment of the driving mechanism for the drawer door in the present insulated door (showing a first specific structure of the ring airbag device).

Fig. 9 is a schematic top view of a second embodiment of a driving mechanism for a drawer door of the isolation door.

Fig. 10 is a front sectional view schematically showing a third embodiment of the driving mechanism for the drawer door in the insulated door (showing a first specific structure of the ring-shaped airbag device).

Fig. 11 is a schematic top view of a third embodiment of a driving mechanism for a drawer door of an insulated door.

Fig. 12 is a front cross-sectional structural view of a fourth embodiment of the driving mechanism for the drawer door in the present insulated door (showing a first specific structure of the ring airbag device).

Fig. 13 is a schematic top view of a driving mechanism for a drawer door of the insulated door according to a fourth embodiment.

FIG. 14 is a schematic view of a second embodiment of the airbag module in the isolation door.

Fig. 15 is an enlarged schematic view of C in fig. 14.

FIG. 16 is a schematic view of a third embodiment of the airbag module in the isolation door.

Fig. 17 is an enlarged schematic view of D in fig. 15.

FIG. 18 is a schematic view of a fourth embodiment of the airbag module in the isolation door.

Fig. 19 is an enlarged schematic view of E in fig. 18.

Shown in the figure are 1, stainless steel corrugated plate, 2, movable rectangular frame inlet end, 3, movable rectangular frame, 4, inserting plate door, 5, transverse partition, 6, track frame, 7, rectangular door frame, 8, gear, 9, first driving cylinder, 10, first driving rod, 11, sealing door frame, 12, friction roller shaft, 13, guide rail, 14, friction roller, 15, first rotary driving device, 16, frame baffle, 17, movable rectangular frame outlet end, 18, first shifting block, 19, cam, 20, second shifting block, 21, rotating shaft, 22, sealing door frame inlet end, 23, sealing door frame outlet end, 24, connecting arm, 25, inserting plate door end deep into track frame, 26, second driving rod, 27, second driving cylinder, 28, track frame far from sealing door frame, 29, elongated through hole, 30, second rotary driving device, 31, screw, 32, nut, 33, elongated through hole, and the like, The first hoisting wheel, 34, the first hoisting device, 35, the first supporting seat, 36, the third rotary driving device, 37, the first hoisting shaft, 38, the first cable, 39, the second cable, 40, the second supporting seat, 41, the second hoisting device, 42, the second hoisting shaft, 43, the fourth rotary driving device, 44, the second hoisting wheel, 45, the sealing door frame far away from the track frame, 46, the one end of the inserting plate door far away from the track frame. 47. The air bag sealing structure comprises a first valve, a second valve, a first cover plate, a second cover plate, an air inlet pipe, a first valve outlet pipe, a second valve outlet pipe, a first valve 51, an annular air bag, a first cover plate, a second cover plate 53, an outer wall of a movable rectangular frame, a first rib, a bottom surface, a second rib, a bottom surface, a slope, a second rib, an opening, a first air bag containing frame 59, an inner wall of a sealing door frame, a second rib, a second air bag.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It is to be noted that the description of the embodiments is provided to aid understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.

The invention relates to a flashboard type smoke isolation door, which comprises a sealing door frame 11 and a flashboard door 4. The inserting plate type smoke isolating door also comprises a containing device which is connected with the sealing door frame 11 and used for containing the drawn inserting plate door 4. And two ends of the sealing door frame 11 are connected and sealed with the inlet end and the outlet end of the annular flue. The transverse partition 5 of the sealing doorframe 11 and a rectangular rail frame 6, which is described below, is provided with an elongated through hole 29 through which the inserting plate door 4 moves linearly. The receiving device is provided with a driving mechanism for inserting and pulling the inserting plate door 4 on a rectangular track frame 6 and a sealing door frame 11 which are described below. A movable annular frame for moving along the inlet and outlet direction of the flue is arranged in the sealing door frame 11, and a driving mechanism for driving the movable annular frame to move along the inlet and outlet direction of the flue is arranged on the sealing door frame 11. The sealing door frame 11 connected with the outlet end of the flue is internally provided with a frame type baffle 16 which blocks the inserting plate door 4 pressed by the movable annular frame to tightly abut and seal. The accommodating device for accommodating the extracted inserting plate door 4 can be a support frame with a guide rail, a platform without a guide rail and the like besides the rectangular track frame 6.

The annular flue is generally a rectangular flue. The accommodating device for accommodating the drawn-out inserting plate door 4 is preferably a rectangular track frame 6, the sealing door frame 11 is a rectangular sealing door frame, the rectangular track frame 6 and the rectangular sealing door frame 11 form an integral rectangular door frame 7 connected by a transverse partition 5, and the inserting plate door 4 is preferably a rectangular inserting plate door.

The sealing door frame can also be a door frame with a rectangular half part close to the track frame and a semicircular half part far away from the track frame; the movable annular frame can also be a movable rectangular frame which is the half close to the track frame and a movable semicircular frame which is the half far away from the track frame; the inserting plate door can also be a rectangular door close to the half of the track frame and a semicircular door far away from the half of the track frame. The annular flue also has a circular flue. (the technical features of this paragraph are not shown in the figure).

This paragraph expands again on the above: the invention relates to a flashboard type smoke isolation door which comprises a rectangular door frame 7 and a flashboard door 4. The rectangular door frame 7 is divided into a sealing door frame 11 and a track frame 6, wherein the two ends of the sealing door frame are connected with the inlet end and the outlet end of the rectangular flue and are sealed, and the track frame 6 is used for accommodating the drawn inserting plate door 4. It will be appreciated that the inlet end of the rectangular flue is connected to the inlet end 22 of the sealing doorframe and the outlet end of the rectangular flue is connected to the outlet end 23 of the sealing doorframe. The sealing can be realized by locking the flanges through a plurality of bolts and nuts, and the contact surfaces of the two flanges can be sealed by packing and other sealing materials. The sealing doorframe 11 may also be referred to as a valve doorframe. The transverse partition 5 of the two frames, i.e. the sealing door frame 11 and the track frame 5, is provided with an elongated through hole 29 for the linear movement of the inserting plate door 4, and the elongated through hole 29 can also be called a flat elongated through hole. The rectangular door frame 7 is provided with a driving mechanism for the inserting and pulling inserting plate door 4. While the track frame 6 and the sealing doorframe 11 described above are provided with the driving mechanism for the drawer panel door 4, it should be understood that the rectangular doorframe 7 is provided with the driving mechanism for the drawer panel door 4. Specifically, as shown in fig. 1, 2, 4, 7, 8, 9, 10, and 11, the driving mechanism of the drawer door 4 may be provided on the track frame 6 alone, or may be provided on the track frame 6 and the seal door frame 11 as shown in fig. 12 and 13.

A movable rectangular frame 3 which is used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame 11, and the movable rectangular frame 3 can also be called as a sealing pressing sleeve. A frame type baffle 16 which is pressed against the inserting plate door 4 pressed by the end face of the outlet end 17 of the movable rectangular frame to seal is arranged in the sealing door frame connected with the outlet end of the flue, and a driving mechanism which enables the movable rectangular frame 3 to move along the inlet and outlet directions of the flue is arranged on the sealing door frame 11.

The structure of the driving mechanism for moving the movable rectangular frame 3 along the direction of the inlet and outlet of the flue is preferably as follows: a plurality of first driving cylinders 9 which act synchronously are arranged outside the sealing doorframe 11. The free end of the first driving rod 10 of each first driving cylinder 9 is hinged with a cam component for driving the movable rectangular frame 3 to move along the inlet and outlet direction of the flue.

Two first driving cylinders 9 are respectively arranged on the two outer sides of the sealing doorframe 11. The specific structure of the cam component is preferably as follows: the free end of the first driving rod 10 of each first driving cylinder 9 is hinged with one end of a connecting arm 24, the other end of the connecting arm 24 is fixed with a rotating shaft 21 which is rotatably matched on the sealing door frame 11, the rotating shaft 21 penetrates through the inner end of the sealing door frame 11 and is provided with a cam 19 which can shift the first shifting block 18 and drive the movable rectangular frame 3 to move towards the sealing door frame inlet end 22 so as to be separated from the inserting plate door 4 or shift the second shifting block 20 and drive the movable rectangular frame 3 to move towards the sealing door frame outlet end 23 so as to press the inserting plate door 4 on the frame type baffle 16, and the first shifting block 18 and the second shifting block 20 are both fixed on the outer wall of one of four corners of the movable rectangular frame 3. The cam assembly described above may also be referred to as a bidirectional cam motion mechanism. The first driving rod 10 is hinged to one end of the connecting arm 24, a U-shaped groove may be formed at the end of the connecting arm 24, the flat block at the end of the first driving rod 10 is inserted into the U-shaped groove, coaxial through holes are formed at the end of the connecting arm 24 and the end of the first driving rod 10, and a cotter pin or a bolt with a nut is rotatably fitted in the through holes. It will be understood that the four first actuating cylinders 9 are arranged two on each side, and that the orientation of the respective first pusher arms 10 of the two first actuating cylinders on each side is reversed, extending towards each of the four corners. In other words, each cam assembly is located at a respective one of the four corners. Also, it will be understood that the rotational fit may be such that the shaft 21 is movably received in respective bearing housings provided with sliding bearings, i.e., bushings. The end of the cylinder body of each first driving cylinder 9 remote from the first pushing rod 10 may be hinged on the outside of the sealing doorframe 11.

The movable rectangular frame inlet end 2 and the sealing door frame inlet end 22 have elastic sealing structures: the inner edge of the stainless steel corrugated plate 1 which is inclined upwards and inwards and downwards is fixed and sealed with the top of the movable rectangular frame inlet end 2, the outer edge of the stainless steel corrugated plate 1 is fixed and sealed with the top of the sealed door frame inlet end 22, and the fixing and sealing can be welding sealing or strong glue bonding sealing.

An annular air bag device capable of being inflated or deflated is arranged in the sealing door frame 11, a frame type baffle plate 16 used for pressing the inserting plate door 4 to be sealed under the inflation state of the annular air bag device is fixed in the sealing door frame 11, an air inlet pipe 48 which is communicated with a compressed air source such as an air storage tank connected with an air pump and is provided with a first valve 47 is arranged on the annular air bag device, and an air outlet pipe 49 which is communicated with the atmosphere and is provided with a second valve 50 is arranged on the annular air bag device.

The first specific embodiment of the annular airbag device comprises: the annular airbag device includes an annular airbag 51, and the annular airbag 51 is accommodated in a first airbag housing 58 provided in the sealing door frame 11 and having an opening 57 facing the plug door 4, in other words, the airbag is enclosed on three sides by the first airbag housing 58 and has an opening 57 facing the plug door 4. The air inlet pipe 48 and the air outlet pipe 49 are communicated with the annular air bag 51 through the sealing doorframe wall. The cross section of the first air bag containing frame 58 is preferably Contraband-shaped, and is composed of an inner wall 59 of a sealing door frame, a first cover plate 52 far away from the inserting plate door 4 and an outer wall 53 of a movable rectangular frame, the outer wall 53 of the outlet end 17 of the movable rectangular frame is provided with a first blocking edge 54 which does not block the pressing of the inserting plate door 4 when the annular air bag 51 is in an inflated state and can limit the falling of the annular air bag 51 when in a deflated state, the bottom surface 55 of the first blocking edge 54 is parallel to the inserting plate door 4, and the end part of the first blocking edge 54 is an inclined surface 56 matched with an arc edge of the outer circumference of the annular air bag 51.

A second embodiment of the annular airbag device: the second air bag housing 68 is preferably Contraband-shaped in cross section and is formed by an inner wall 59 for sealing against the door frame, a second cover plate 70 remote from the slatted door 4 and a side plate 69 remote from the inner wall 59 for sealing against the door frame, the free end of the side plate 69 and the inner wall 59 for sealing against the door frame being provided with a pair of second flanges 60 which limit the drop of the annular air bag 51 when the annular air bag 51 is inflated and deflated without interfering with the compression of the slatted door. The remaining structure is the same as that of the above first embodiment of the annular airbag device. The rib may also be referred to as a bead or a baffle.

A third embodiment of the annular airbag device: the annular air bag device comprises an annular air bag frame 61, the air bag frame 61 is arranged in the sealing door frame 11, an opening 57 faces the inserting plate door 4, a flat flexible sealing plate 66 is pressed and sealed through a locking screw 64 and a pressing plate 65 of the sealing plate at the opening of the air bag frame 61 to form an annular inflation chamber 62, and the air inlet pipe 48 and the air outlet pipe 49 penetrate through the air bag frame 61 to be communicated with the inflation chamber 62. The locking screws 64 are screwed in the threaded holes of the screw seats 63 at the openings of the air bag frames 61.

A fourth embodiment of the annular airbag device: the flexible sealing plate adopts a downward convex flexible sealing plate 67. The remaining structure is the same as that of the above third embodiment of the annular airbag device. The locking screw 64 may also be referred to as a locking bolt.

The first valve 47 and the second valve 50 are both solenoid valves, and there can be two ways, that is, the first valve 47 and the second valve 50 can have two structures: as shown in fig. 4, 6, 8 and 10, the first valve 47 and the second valve 50 each have a solenoid valve and a spare manual valve, and the manual valves can also be used as manual pressure adjusting valves in addition to the functions of the stop valves. Alternatively, as shown in fig. 1, 2 and 3, the first valve 47 and the second valve 50 may be only one electromagnetic valve, and manual valves for use are not provided.

As shown in fig. 1, 2, 3, 4 and 5, a first embodiment of the driving mechanism of the drawer door of the airbag sealing isolation door of the present invention is: a pair of friction rollers 14 which are used for clamping the inserting plate door 4 on two sides and driving the inserting plate door 4 to move linearly are arranged at the position, close to the transverse partition wall 5, of the track frame 6, two friction roller shafts 12 are connected to two side frames of the track frame 6 in a rotating mode, one end, extending out of the track frame 6, of each of the two friction roller shafts 12 is provided with a gear 8, the two gears 8 are meshed with each other, the other end, extending out of the track frame 6, of one of the friction roller shafts 12 is connected with a driving power device, and if the other end, extending out of the track frame 6, of one of the friction roller shafts 12 is connected with a first output shaft (not shown in the figure) of a first rotating. The track frame 6 is provided with a guide rail 13 for the linear movement of the extracted inserting plate door 4. In other words, the first rotary drive device 15 is employed in the present embodiment as the drive circuit device for driving the friction roller shaft 12 to rotate.

As shown in fig. 6 and 7, a second embodiment of the driving mechanism of the drawer door of the airbag sealing isolation door of the present invention is: the rail frame 28 remote from the sealing door frame is provided with at least one second driving cylinder 27, and the free end of a second driving rod 26 of the second driving cylinder 27 is hinged with one end 25 of the inserting plate door extending into the rail frame. The specific structure of the hinge joint may be that the end of the second driving rod 26 has a U-shaped groove, the U-shaped groove is inserted into the end 25 of the inserting plate door extending into the track frame, the end of the second driving rod 26 and the end of the inserting plate door have coaxial through holes, and a cotter pin or a bolt with a nut is rotatably fitted in the through holes.

As can be known from the general knowledge, the driving cylinder of the first driving cylinder 9 and the second driving cylinder 27 may be a hydraulic cylinder, such as an oil cylinder, or an air cylinder, or an electric push rod. The driving rod of the first driving rod 10 and the second driving rod 26 may be a push rod of a hydraulic cylinder, such as an oil cylinder, or a push rod of an air cylinder, or a push rod of an electric push rod.

As shown in fig. 8 and 9, a third embodiment of the driving mechanism of the inserting and pulling panel door of the airbag sealing isolation door of the present invention is: the track frame 28 remote from the sealed door frame is provided with at least one second rotary driving device 30, a second output shaft (not shown) of the second rotary driving device 30 is coaxially connected with a screw rod 31 with one end penetrating through the frame, and the other end of the screw rod 31 is screwed with a nut 32 fixed on one end 25 of the inserting plate door extending into the track frame. The screw 31 and nut 32 screwing structure can also be called a nut screw mechanism or a nut screw mechanism.

As shown in fig. 10 and 11, a fourth embodiment of the driving mechanism of the inserting and pulling panel door of the airbag sealing isolation door of the present invention is: at least one first hoisting device 34 is arranged on the track frame 28 far away from the sealing door frame, one end of a first cable 38 is fixed on a first hoisting wheel 33 of the first hoisting device 34, and the other end of the first cable 38 is fixed on one end 25 of the inserting plate door extending into the track frame; at least one second hoisting device 41 which synchronously acts with the first hoisting device 34 is arranged on the sealing door frame 45 far away from the track frame, one end of a second guy rope 39 is fixed on a second hoisting wheel 44 of the second hoisting device 41, the other end of the second guy rope 39 is fixed on one end 46 far away from the track frame of the inserting plate door, and the first guy rope 38 and the second guy rope 39 are coaxial. The first support seat 35 of the first winding device 34 is fixed on the track frame 28 far away from the sealing door frame by screw connection, a third rotary driving device 36 is arranged on one side of the first support seat 35, a third output shaft (not shown in the figure) of the third rotary driving device 36 is coaxially connected with the first winding shaft 37, two ends of the first winding shaft 37 are rotatably connected on the first support seat 35, and the first winding wheel 33 is coaxially fixed on the first winding shaft 37. The second winding device 41 is fixed, for example, screwed on the sealing door frame 28 far away from the track frame, one side of the second support base 40 is provided with a fourth rotation driving device 43, a fourth output shaft (not shown in the figure) of the fourth rotation driving device 43 is coaxially connected with the second winding shaft 42, two ends of the second winding shaft 42 are rotatably connected on the second support base 40, and the second winding wheel 44 is coaxially fixed on the second winding shaft 42. The inhaul cable in the first inhaul cable and the second inhaul cable can also be called a rope, can be a nylon rope or a steel wire rope and the like, and the two ends of the inhaul cable can be fixed by screwing, gluing, welding and the like.

As is known in the art, the rotary driving device of the first rotary driving device, the second rotary driving device, the third rotary driving device, and the fourth rotary driving device may be a common motor, a stepping motor, a servo motor, or a multi-turn electric actuator. The rotary driving device can also be a rotary air cylinder. Electric motors are also known as motors.

It will be understood that the panel-style smoke isolation door of the present invention may also be provided with a main controller or central processing unit such as a CPU, position sensors may be provided on the track frame 28 remote from the seal door frame, on the seal door frame 45 remote from the track frame and on the frame stop 16, and pressure sensors may be provided on the seal door frame in communication with the annular bladder arrangement such as the annular bladder 51 or plenum 62. The main controller is electrically connected with the pressure sensor, the two position sensors, the relay for controlling the electromagnetic valve, the relay for controlling the driving cylinder and the relay for controlling the driving mechanism of the plug board door.

The working principle of the inserting plate type smoke isolating door is as follows:

when the inserting plate door 4 needs to be opened, the main controller controls the relay to open the electromagnetic valve of the air outlet pipe 49, gas in an annular air bag device such as an annular air bag 51 or a plenum chamber 62 is discharged, when the pressure relay transmits a signal of a preset pressure value, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is lifted upwards through the cam assembly, namely, moves towards the sealing door frame inlet end 22 to be separated from the inserting plate door 4, the driving mechanism of the inserting plate door is started, the inserting plate door 4 is pulled out and enters the track frame 6, when one end of the inserting plate door 4 far away from the sealing door frame 11 touches a position sensor arranged on the track frame 28 far away from the sealing door frame, a signal is transmitted to the main controller, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is pressed downwards through the cam assembly, namely, moves towards the sealing door frame outlet end 23 to be pressed on, at the moment, a position sensor arranged on the frame baffle transmits a signal, the first driving cylinder 9 stops acting, so that a closed state is formed between the movable rectangular frame 3 or the compressing sleeve and the sealing door frame 11, meanwhile, the main controller controls the relay to close the electromagnetic valve of the air outlet pipe 49 and open the electromagnetic valve of the air inlet pipe 48 at the same time, compressed air is filled into the annular air bag device, the annular air bag device is tightly attached to the frame baffle 16, the mixture and dust in the smoke and the mixture and the dust in the smoke are prevented from leaking into the space between the movable rectangular frame 3 and the sealing door frame, and the dust and the like are prevented from being accumulated between the annular air bag 51 and the frame baffle 16 to hinder the insertion of the.

When the inserting plate door 4 needs to be closed, the main controller controls the relay to open the electromagnetic valve of the air outlet pipe 49 to discharge air in an annular air bag device such as an annular air bag 51 or a plenum chamber 62, when the pressure relay transmits a signal with a preset pressure value, the main controller controls the relay to start the first driving cylinder 9, the movable rectangular frame 3 is lifted upwards through the cam assembly, namely, the movable rectangular frame is moved towards the sealing door frame inlet end 22 to be separated from the inserting plate door 4, the driving mechanism of the inserting plate door is started, the inserting plate door 4 is inserted back into the sealing door frame 11, and the extracting or inserting is relatively easy and flexible. When one end of the inserting plate door 4 far from the track frame 6 touches the position sensor on the sealing door frame 45 far from the track frame, the main controller controls the relay to start the first driving cylinder 9, the cam component presses the movable rectangular frame 3 downwards, namely moves towards the sealing door frame outlet end 23 to press the upper surface of the inserting plate door 4, namely the surface close to the sealing door frame inlet end 22, because the bottom of the inserting plate door 4, namely the lower surface, namely the surface close to the sealing door frame outlet end 23 is supported and pressed by the frame type baffle 16, the position sensor arranged on the frame baffle transmits a signal at the moment, the first driving cylinder 9 stops acting, the peripheral end surfaces, namely all end surfaces, of the movable rectangular frame outlet end 17 tightly press the inserting plate door 4, meanwhile, the main controller controls the relay to close the electromagnetic valve of the air outlet pipe 49 and simultaneously open the electromagnetic valve of the air inlet pipe 48, and charge compressed air into, the upper surface of the annular air bag device oppresses the picture peg door 4 is close to the surface of the sealing door frame entrance point 22 promptly, because the bottom of the picture peg door 4 is the surface that the lower surface is close to the sealing door frame exit end 23 promptly and is held and compressed tightly and sealed by the frame baffle 16, has played the effect such as isolated flue gas dust, in other words, annular air bag 51 inflation or flexible seal plate oppression and hug closely all around of the upper surface of the picture peg door 4, has played the effect of isolated flue gas dust, do not inwards promptly the inlet end leakage of flue also outwards promptly the exit end leakage of flue promptly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an inserted plate formula flue gas isolation door, includes sealed door frame and inserted plate door, its characterized in that: the accommodating device is connected with the sealed door frame and used for accommodating the drawn inserting plate door; the two ends of the sealing door frame are connected and sealed with the inlet end and the outlet end of the annular flue, a long through hole for the linear movement of the inserting plate door is arranged on the transverse partition of the sealing door frame and the accommodating device, and a driving mechanism for drawing and inserting the inserting plate door is arranged on the accommodating device and the sealing door frame; a movable annular frame used for moving along the direction of the inlet and the outlet of the flue is arranged in the sealing door frame, a driving mechanism used for enabling the movable annular frame to move along the direction of the inlet and the outlet of the flue is arranged on the sealing door frame, and a frame type baffle plate used for blocking the inserting plate door pressed by the movable annular frame to abut against and seal is arranged in the sealing door frame connected with the outlet end of the flue; an annular air bag device capable of being inflated or deflated is arranged in the sealing door frame, an air inlet pipe communicated with a compressed air source and provided with a first valve is arranged on the annular air bag device, and an air outlet pipe communicated with the atmosphere and provided with a second valve is arranged on the annular air bag.

2. The flashboard smoke isolation door of claim 1, wherein: the structure of the driving mechanism which enables the movable annular frame to move along the inlet and outlet direction of the flue is as follows: a plurality of first driving cylinders which act synchronously are arranged on the outer side of the sealing door frame, and a cam component used for driving the movable annular frame to move along the inlet and outlet directions of the flue is hinged to the free end of a first driving rod of each first driving cylinder.

3. The flashboard smoke isolation door of claim 2, wherein: two outer sides of the sealing door frame are respectively provided with two first driving cylinders, the free end of a first driving rod of each first driving cylinder is hinged with one end of a connecting arm, the other end of the connecting arm is fixed with a rotating shaft which is in rotating fit with the sealing door frame, the inner end of the rotating shaft penetrating through the sealing door frame is provided with a cam which can stir a first shifting block and drive the movable annular frame to move towards the inlet end of the sealing door frame so as to separate from the inserting plate door or stir a second shifting block and drive the movable annular frame to move towards the outlet end of the sealing door frame so as to press the inserting plate door on the frame type baffle, and the first shifting block and the second shifting block are both fixed on the outer wall of one corner in the four corners.

4. The flashboard smoke isolation door of claim 1, wherein: the elastic sealing structure of the inlet end of the movable annular frame and the inlet end of the sealing door frame is as follows: the inner edge of the stainless steel corrugated plate which is inclined upwards and inwards and downwards is fixed and sealed with the top of the inlet end of the movable annular frame, and the outer edge of the stainless steel corrugated plate is fixed and sealed with the top of the inlet end of the sealing door frame.

5. The inserting plate type smoke isolating door according to any one of claims 1 to 4, wherein: the accommodating device for accommodating the drawn inserting plate door is a rectangular track frame, the sealing door frame is a rectangular sealing door frame, the rectangular track frame and the rectangular sealing door frame form an integral rectangular door frame connected by a transverse partition, and the inserting plate door is a rectangular inserting plate door.

6. The inserting plate type smoke isolating door according to any one of claims 1 to 4, wherein: the sealing door frame is a rectangular door frame close to the half of the track frame, and a semicircular door frame far away from the half of the track frame; the movable annular frame is a movable rectangular frame close to the track frame, and a movable semicircular frame far away from the track frame; the half of the inserting plate door close to the track frame is a rectangular door, and the half of the inserting plate door far away from the track frame is a semicircular door.

7. The air bag sealing insulated door of claim 1, wherein: the annular air bag device comprises an annular air bag, the annular air bag is accommodated in an air bag accommodating frame which is arranged in the sealed door frame and has an opening facing the inserting plate door, and the air inlet pipe and the air outlet pipe penetrate through the wall of the sealed door frame and are communicated with the annular air bag.

8. The air bag sealing insulated door of claim 7, wherein: the cross section of the air bag containing frame is Contraband-shaped, and consists of the inner wall of a sealing door frame, a first cover plate far away from the flashboard door and the outer wall of the movable annular frame, and a first rib which can limit the falling of the annular air bag when the annular air bag is in an inflated state and does not obstruct the flashboard door to be pressed and is in a deflated state is arranged on the outer wall at the outlet end of the movable annular frame; or the air bag containing frame is composed of the inner wall of the sealing door frame, a second cover plate far away from the inserting plate door and a side plate far away from the inner wall of the sealing door frame, and a pair of second flanges which do not hinder the pressing of the inserting plate door when the annular air bag is in an inflated state and can limit the falling of the annular air bag when the annular air bag is in an deflated state are arranged at the free end of the side plate and the inner wall of the sealing door frame.

9. The air bag sealing insulated door of claim 7, wherein: the annular air bag device comprises an annular air bag frame, the air bag frame is arranged in the sealing door frame, the opening of the air bag frame faces the inserting plate door, the opening of the air bag frame compresses the flat flexible sealing plate or the downward convex flexible sealing plate through the locking screw and the pressing plate of the sealing plate and seals the flat flexible sealing plate or the downward convex flexible sealing plate to form a plenum chamber, and the air inlet pipe and the air outlet pipe are communicated with the annular plenum chamber through the air bag frame.

10. The air bag sealing insulated door of claim 1, wherein: the first valve and the second valve are electromagnetic valves, the air bag sealing isolation door further comprises a main controller, a pressure sensor which is arranged on the sealing door frame and communicated with the annular air bag device, a position sensor which is arranged on the track frame far away from the sealing door frame and a position sensor which is arranged on the sealing door frame far away from the track frame, and the main controller is electrically connected with the pressure sensor, the two position sensors, a relay for controlling the electromagnetic valves and a relay for controlling a driving mechanism for pulling and inserting the plugboard door.

11. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: a pair of friction rollers which are used for clamping the inserting plate door on two sides and driving the inserting plate door to move linearly are arranged at the position, close to the transverse partition, of the track frame, two friction roller shafts are rotatably connected to two side frames of the track frame, one end of each of the two friction roller shafts, which extends out of the track frame, is provided with a gear, and the two gears are meshed with each other; the other end of one of the friction roll shafts, which extends out of the track frame, is coaxially connected with a first output shaft of a first rotary driving device fixed on the track frame at the other end; the frame of the track frame is internally provided with a guide rail for the linear movement of the extracted inserting plate door.

12. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second driving cylinder, and the free end of a second driving rod of the second driving cylinder is hinged with one end of the inserting plate door extending into the track frame.

13. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: and the track frame far away from the sealing door frame is provided with at least one second rotary driving device, a second output shaft of the second rotary driving device is coaxially connected with a screw rod of which one end penetrates through the frame, and the other end of the screw rod is screwed with a nut fixed at one end of the inserting plate door extending into the track frame.

14. The flashboard smoke isolation door of claim 5, wherein: the structure of the driving mechanism of the drawer inserting plate door is as follows: the rail frame far away from the sealing frame is provided with at least one first hoisting device, one end of a first cable is fixed on a first hoisting wheel of the first hoisting device, and the other end of the first cable is fixed on one end of the inserting plate door extending into the rail frame; the sealing frame far away from the track frame is provided with at least one second hoisting device which synchronously acts with the first hoisting device, a second hoisting wheel of the second hoisting device is fixed with one end of a second cable, the other end of the second cable is fixed at one end of the plugboard door far away from the track frame, and the first cable and the second cable are coaxial.