Intelligent locking large isolation door

Abstract

The utility model discloses an intelligent locking large isolation door which comprises a door frame, a sealing plate and an inserting plate door plate. The sealing plates are fixed to the two sides of the door frame. At least one group of inserting plate door plates are inserted into a cavity formed by the sealing plate and the door frame; the bottom of the door frame is provided with an ash falling groove, two ends of the ash falling groove are provided with ash blowing ports, and the bottom end is provided with a drain outlet; a sealing strip made of a high-temperature-resistant and corrosion-resistant material is mounted at an inner side interface, corresponding to the inserting plate door plate, of the door frame; the plug board door plate comprises a door plate, a transmission device and a locking device; the transmission device and the locking device are electrically connected with an electric cabinet of the isolation door. After the scheme is adopted, the influence of dust is solved through the dust falling groove, the problems of untight sealing and serious leakage are solved through the cooperation of the transmission device and the locking device, and the blank that a large flue isolation door of more than 4 meters cannot be installed and used is filled up through the modularized insertion plate door plate.

Description

Technical Field

[0001] The utility model relates to the field of large-scale isolation doors, in particular to an intelligent locking large-scale isolation door which can isolate media such as smoke and achieve zero leakage. Background Art

[0002] Electric isolation doors are important auxiliary equipment in boiler pipelines, boiler auxiliary equipment, and flue gas ducts of waste incinerators in power plants, chemical plants, petrochemical plants, and heating plants. They are primarily installed in thermal power plant boiler cold and hot air ducts where they need to be shut off and isolated. Compared to the shortcomings of other dampers such as louvered damper doors that often close loosely, isolation doors significantly improve sealing and facilitate the switching and maintenance of boiler equipment. Currently, isolation doors used in major power plants and power stations across the country suffer from long-term use due to dust accumulation, resulting in poor sealing and severe leakage. The isolation doors currently on the market have a short service life and high replacement costs. In addition, they cannot be installed in large flue ducts. Utility Model Content

[0003] In order to solve the defects of the prior art, the utility model provides an intelligent locking large isolation door.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an intelligent locking large-scale isolation door, comprising a door frame, a sealing plate and a plug-in door panel; the sealing plate is fixed on both sides of the door frame; at least one set of plug-in door panels is inserted into the cavity formed by the sealing plate and the door frame; an ash drop groove is provided at the bottom of the door frame, ash blowing ports are provided at both ends of the ash drop groove, and a sewage outlet is provided at the bottom end of the ash drop groove; a sealing strip made of high-temperature and corrosion-resistant material is installed at the corresponding inner interface between the door frame and the plug-in door panel; the plug-in door panel comprises a door panel, a transmission device and a lock The invention relates to a locking device; the transmission device includes an electric actuator or a pneumatic actuator, a screw and a nut; the electric actuator or the pneumatic actuator is arranged on the door frame; the nut is fixed on the door panel; the screw and the nut are engaged with each other; the locking device includes a locking motor, a locking shaft and a cam; the locking motor is arranged on the door frame; a plurality of cams are evenly fixed on the locking shaft; one end of the locking shaft is fixedly connected to the locking motor; the other end is hinged to the door frame; the electric actuator or the pneumatic actuator and the locking motor are respectively electrically connected to the electric control box of the isolation door.

[0005] This solution eliminates the impact of dust through the ash chute, solves the problem of poor sealing and severe leakage through the cooperation of the transmission device and the locking device, and solves the problem of the isolation door being unable to be installed and used due to the size of the flue. The intelligent locking large isolation door of this application is not only flexible to open and close and has high sealing performance, but also has a long service life and is easy and reliable to operate, filling the gap in large flue isolation doors.

[0006] As a further improvement, the door frame is equipped with packing grooves. The sealing strip is fixed in place by stainless steel screws. The sealing strip is made of ceramic fiber packing. The packing groove design serves to repeatedly secure the sealing strip. The use of ceramic fiber packing ensures a good seal while also reducing production costs.

[0007] As a further improvement, a nozzle controlled by a solenoid valve is provided at the soot blowing port; the solenoid valve is electrically connected to the electric control box. With the help of the solenoid valve, high-pressure gas or high-pressure liquid can be sprayed through the nozzle to clean the dust as needed.

[0008] A further improvement is the use of two sets of locking shafts and cams; a full-length strip of reinforcing ribs is installed inside the door panel, corresponding to the cams. The use of two sets of locking shafts and cams enhances locking effectiveness. The reinforcing ribs prevent the door panel from denting, regardless of cam torque or usage, and will remain deformed for years, achieving both lightweighting and increased strength and toughness.

[0009] As a further improvement, guide rails fixed to the door frame and guide rollers fixed to the door panel are provided on both sides of the screw rod. The design of the guide rails and guide rollers plays a role in assisting the opening and closing of the door.

[0010] As a further improvement, one end of the screw is fixedly connected to the pull rod inside the insert door panel, and the pull rod is welded to the reinforcing rib inside the door panel. This improves the connection strength and ensures the connection strength between the door panel and the pull rod, ensuring the stability of the door when opening and closing.

[0011] As a further improvement, the door panel is provided with a positioning roller. With the help of the positioning roller, the stability of the door panel during the opening and closing process is ensured.

[0012] As a further improvement, the locking motor and the transmission are both arranged at the top of the door frame; or the locking motor and the transmission are both arranged on the same side of the door frame; or the locking motor and the transmission are both arranged on opposite sides of the door frame.

[0013] A further improvement is that the insert door panels are divided into two or three groups, and the insert door panels are separated by partitions. The partitions divide the insert door panels, which is compatible with large-sized isolation doors while enabling the purpose of opening or closing one group separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the intelligent locking large isolation door.

[0015] Figure 2 It is a side view of a large isolation door with intelligent locking.

[0016] Figure 3 This is the modular assembly view of the intelligent locking large isolation door.

[0017] Figure 4It is a cross-sectional view of a large isolation door with intelligent locking.

[0018] Figure 5 This is a three-dimensional view of the drive shaft and cam after installation. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown, a large, intelligently locked insulation door comprises a door frame 1, a sealing plate 2, and a plug-in door panel 3. The sealing plate is fixed to both sides of the door frame. At least one set of plug-in door panels is inserted into the cavity formed by the sealing plate and the door frame. This application uses a large, four-meter insulation door as an example. A four-meter insulation door can be constructed using two sets, while larger doors, such as six meters, can be constructed using three sets of plug-in door panels. Each set is separated by a partition.

[0021] The door frame has an ash chute 4 at its base, with ash blowers 5 at each end and a sewage outlet 6 at its base. A nozzle controlled by a solenoid valve is located at the blower, which is electrically connected to the electrical control box. A sealing strip 7 made of high-temperature and corrosion-resistant material is installed at the inner interface between the door frame and the corresponding insert door panel. The door frame has a packing groove, which is secured to the sealing strip with stainless steel screws. The sealing strip is made of ceramic fiber packing.

[0022] The insert door panel includes a door panel 8, a transmission mechanism, and a locking mechanism. The transmission mechanism includes an electric or pneumatic actuator 9, a screw 10, and a nut 11. The electric or pneumatic actuator is mounted on the door frame, and the nut is fixed to the door panel. The screw and nut engage with each other. To increase strength, the screw inside the insert door panel is welded to the internal reinforcement ribs of the door panel. To facilitate opening and closing the door, guide rails fixed to the door frame and guide rollers fixed to the door panel are located on either side of the screw. Positioning rollers are also provided on the door panel to enhance safety and stability during opening and closing.

[0023] The locking device includes a locking motor 12, a locking shaft 13, and a cam 14. The locking motor is mounted on the door frame. Several cams are evenly mounted on the locking shaft. One end of the locking shaft is fixedly connected to the locking motor, while the other end is hinged to the door frame. The electric or pneumatic actuator and the locking motor are each electrically connected to the electrical control box of the isolation door. There are two sets of locking shafts and cams, with at least three cams on each locking shaft. A full strip of reinforcing ribs is installed inside the door panel at locations corresponding to the cams. The use of multiple cams achieves multi-point locking, improving the stability of the seal.

[0024] Depending on the installation environment around the isolation door, the locking motor and transmission can be installed on the top of the door frame; on the same side of the door frame; or on opposite sides of the door frame. These multiple installation methods expand the application scenarios of the isolation door.

[0025] In order to better illustrate the technical solution of the present application, the use of intelligent locking large isolation doors is now further explained.

[0026] The electric control box only plays a basic control role and is not within the scope of protection of this application. To open the isolation door, the electric control box controls the electric actuator or pneumatic actuator to start working, and the electric actuator or pneumatic actuator drives the screw to rotate, thereby driving the door panel to move upward or to the sides (different installation methods determine different movement directions). When the door is fully opened, that is, when the electric control box reads that the electric actuator or pneumatic actuator has opened the door to 100%, the electric actuator or pneumatic actuator stops rotating, and the isolation door is in a fully open state. When the isolation door needs to be closed, the electric control box controls the electric actuator or pneumatic actuator to work in reverse again, and the electric actuator or pneumatic actuator stops rotating. At the same time, the locking motor starts working to drive the locking shaft to rotate, and the door panel and the door frame are fixed as a whole through the cam on the locking shaft. Zero leakage of smoke inside and outside is achieved through the sealing strip at the contact between the door panel and the door frame.

[0027] After adopting the technical solution of the present application, the reliability of door panel locking is greatly improved, and the advantages of multi-point locking become more obvious. The modular design makes the size of the isolation door no longer restricted, and solves the pain points of dust accumulation, jamming, and flue gas leakage of other current isolation doors, plug-in doors, baffle doors, double shutters, etc. At the same time, it also fills the gap in large flue isolation doors over 4 meters, greatly increases service life, and reduces use costs.

[0028] The above-mentioned embodiment is only a preferred embodiment of the present invention, but the present invention is not limited by the above-mentioned embodiment. Any other changes, modifications, replacements, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and fall within the scope of protection of the present invention.

Claims

1. An intelligent locking large-scale insulating door, comprising a door frame (1), a sealing plate (2) and a plug-in door panel (3); the sealing plate is fixed on both sides of the door frame; and the characteristics are: At least one set of plug-in door panels is inserted into a chamber formed by a sealing plate and a door frame; a dust drop groove (4) is provided at the bottom of the door frame, dust blowing ports (5) are provided at both ends of the dust drop groove, and a sewage outlet (6) is provided at the bottom end of the dust drop groove; a sealing strip (7) made of a high-temperature and corrosion-resistant material is installed at the inner interface corresponding to the door frame and the plug-in door panel; the plug-in door panel comprises a door panel (8), a transmission device and a locking device; the transmission device comprises an electric actuator or a pneumatic actuator (9), a screw rod (10), and a nut (11); the electric actuator or the pneumatic actuator is arranged on the door frame; the nut is fixed on the door panel; the screw rod and the nut are meshed with each other; the locking device comprises a locking motor (12), a locking shaft (13) and a cam (14); the locking motor is arranged on the door frame; a plurality of cams are evenly fixed on the locking shaft; one end of the locking shaft is fixedly connected to the locking motor; and the other end is hinged to the door frame; the electric actuator or the pneumatic actuator and the locking motor are respectively electrically connected to the electric control box of the isolation door.

2. The intelligent locking large-scale insulating door according to claim 1, characterized in that: The door frame is provided with a packing groove; the sealing strip is fixed in the packing groove by stainless steel screws; the sealing strip is made of ceramic fiber packing.

3. The intelligent locking large-scale insulating door according to claim 1, characterized in that: A nozzle controlled by a solenoid valve is provided at the soot blowing port; The solenoid valve is electrically connected to the electric control box.

4. The intelligent locking large-scale insulating door according to claim 1, characterized in that: There are two sets of locking shafts and cams; a whole strip of reinforcing ribs is provided inside the door panel at the position corresponding to the cam.

5. The intelligent locking large-scale insulating door according to claim 1, characterized in that: Guide rails fixed on the door frame and guide rollers fixed on the door panel are respectively provided on both sides of the screw rod.

6. The intelligent locking large-scale insulating door according to claim 1, characterized in that: One end of the screw rod is fixedly connected to a pull rod inside the insert door panel, and the pull rod is fixed to a reinforcing rib inside the door panel by welding.

7. The intelligent locking large-scale insulating door according to claim 1, characterized in that: The door panel is provided with a positioning roller.

8. The intelligent locking large-scale insulating door according to any one of claims 1 to 7, characterized in that: The locking motor and the transmission are both arranged on the top of the door frame; or the locking motor and the transmission are both arranged on the same side of the door frame; or the locking motor and the transmission are both arranged on opposite sides of the door frame.

9. The intelligent locking large-scale insulating door according to claim 8, characterized in that: There are two or three groups of sliding door panels; the sliding door panels are separated by partitions.

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