Galvanized strip steel movable air bellow cooling device and sealing structure in cooling device

Abstract

The utility model relates to a cooling device for a galvanized strip steel movable air bellow. The cooling device comprises a fan fixed on a steel structure platform, a fixed air pipe fixedly arranged on the fan and a movable air pipe fixedly arranged and communicated with the side wall of the air bellow, a sealing structure is fixedly mounted on the bottom surface of a connector, connected with the movable air pipe, of the fixed air pipe and comprises an annular air bag and an air nozzle; the air nozzle is connected with an air source and controlled by an electromagnetic valve. When the air bag is filled with air, the bottom face of the air bag is tightly attached to the top face of the attaching portion of the upper pipe opening of the movable air pipe. An air bellow support with wheels installed at the bottom is fixedly installed on the outer side of the movable air pipe, and the wheels are driven by a transmission device to move front and back on the air bellow track so as to drive the air bellow to move front and back. The utility model further comprises a sealing structure in the cooling device. The weight of the movable air bellow is reduced, so that the movable air bellow is more convenient to move, meanwhile, the disassembly process during inspection and maintenance is omitted, and the sealing performance is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling equipment, and particularly relates to a galvanized steel strip mobile bellows cooling device and a sealing structure in the cooling device. Background Art

[0002] The galvanizing production line needs to be regularly inspected and maintained. During the inspection, the bellows above the zinc pot needs to be moved. However, the mobile bellows has huge air ducts, bellows, steel structures and fans, which are very cumbersome and unsafe to move. In order to solve the problem of inconvenience in movement, the technicians modified the equipment and designed a detachable connection structure between the bellows and the air duct or part of the air duct to make the bellows more flexible and safer to move. However, the equipment must be disassembled and assembled for each inspection, which adds a lot of workload to the relevant staff. Moreover, the connectors are prone to deformation after multiple disassembly and assembly, which leads to a decrease in sealing and may pose a safety hazard. However, if the connectors are replaced uniformly after a certain number of disassembly and assembly, it will increase the equipment cost and spare parts pressure. Therefore, it is necessary to continue to improve and find more flexible connection methods.

[0003] The patent number is CN 202310743640.0, the publication number is CN 116770043 A, and the patent name is "A new inflatable sealing device for a mobile bellows of an annealing furnace and its use method". The invention patent discloses a rubber airbag for sealing. The overall structure of the device is too complicated and is not suitable for use on a mobile bellows. Therefore, it is necessary to design a sealing structure suitable for the above-mentioned cooling device. Summary of the invention

[0004] The utility model provides a galvanized steel strip mobile bellows cooling device and a sealing structure in the cooling device to solve the technical problems existing in the known technology, which reduces the weight of the mobile bellows and makes it more convenient to move, while eliminating the disassembly process during maintenance and ensuring the sealing.

[0005] The utility model includes the following technical solutions:

[0006] A mobile bellows cooling device for galvanized steel strip, comprising a fan fixed on a steel structure platform, a fixed air duct fixed to the fan, and a mobile air duct fixed to and connected to the side wall of the bellows; a sealing structure is fixed on the bottom surface of the interface where the fixed air duct connects to the mobile air duct, and the sealing structure comprises an annular air bag and an air nozzle; the air nozzle is connected to an air source and controlled by a solenoid valve, and when the air bag is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting part of the upper pipe opening of the mobile air duct; a bellows bracket with wheels installed on the bottom is fixed on the outer side of the mobile air duct, and the wheels are driven by a transmission device to move back and forth on a bellows track, thereby driving the bellows to move back and forth.

[0007] Furthermore, movable air ducts, fixed air ducts and fans are symmetrically arranged on both sides of the wind box, and a reinforcing rod is fixedly installed between the two movable air ducts to prevent the left and right sides from being out of sync when moving.

[0008] Furthermore, the wheel on one side of the bellows is installed on the output end of the transmission device, and the wheel on this side serves as a driving wheel to drive the wheel on the other side to roll.

[0009] Furthermore, the transmission device is fixedly mounted on the bottom of the bellows bracket.

[0010] Furthermore, the bellows track is fixedly mounted on the middle of the top surface of the steel structure track platform, and the steel structure track platform is fixedly mounted on the ground.

[0011] Furthermore, a limit baffle is provided on the bellows track. When the interface between the fixed air duct and the movable air duct is aligned, the wheel moves to the limit baffle to control the position of the movable bellows and ensure the corresponding position of the airbag.

[0012] A sealing structure in a mobile bellows cooling device for galvanized steel strip, the cooling device comprising a fan, a fixed air duct fixed to the fan, and a mobile air duct fixed to and connected to the side wall of the bellows, comprising an annular air bag and an air nozzle; the air nozzle is connected to an air source and controlled by a solenoid valve, and when the air bag is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting part of the upper pipe opening of the mobile air duct; the sealing structure is fixed on the bottom surface of the interface where the fixed air duct connects the mobile air duct.

[0013] Furthermore, the airbag includes an inflatable portion and a connecting portion with a T-shaped longitudinal section.

[0014] Furthermore, the air nozzle is inserted vertically downward into the inflation portion from the top surface of the connecting portion, and a through hole corresponding to the air nozzle is provided on the interface connecting the fixed air duct to the movable air duct.

[0015] Furthermore, the connecting portion is fixed to the fixed air duct of the cooling device by gluing.

[0016] The utility model has the following advantages and positive effects:

[0017] 1. The utility model divides the air duct into a fixed air duct and a movable air duct. The fixed air duct and the fan are fixed on the steel structure platform, and the movable air duct moves together with the bellows, which reduces the weight of the movable bellows and makes it more convenient and safer to move.

[0018] 2. The fixed air duct and the movable air duct of the utility model are connected and sealed by an inflatable airbag. After the airbag is inflated and tightly fitted with the fitting part, it is equivalent to a sealing rubber pad. The use of this sealing structure saves the disassembly process during inspection and maintenance and ensures sealing.

[0019] 3. The airbag adopted by the utility model has a simple structure and low cost. The airbag nozzle is inflated by an electromagnetic control valve to achieve an ideal sealing effect. Under normal circumstances, no manual participation is required, thus saving labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the cooling device of the utility model;

[0021] Figure 2 This is a schematic diagram of the working state of the sealing structure of the utility model;

[0022] Figure 3 is a plan view of the airbag;

[0023] Figure 4 is a schematic diagram of the AA section of the airbag (uninflated state);

[0024] In the figure, 1-steel structure platform; 2-fan; 3-fixed air duct; 4-movable air duct; 401-fitting part; 402-reinforcement rod; 5-bellows; 6-bellows bracket; 7-wheel; 8-transmission device; 9-bellows track;

[0025] 10-air bag; 11-air nozzle; 12-steel structure track platform; 13-strip steel. DETAILED DESCRIPTION

[0026] In order to further disclose the content, features and effects of the invention, the following examples are given and described in detail in conjunction with the accompanying drawings. In the description of the following embodiments, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0027] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0028] Example 1: See attached Figure 1-2A mobile bellows cooling device for galvanized steel strip comprises a fan 2 fixed on a steel structure platform 1, a fixed air duct 3 fixed to the fan 2, and a mobile air duct 4 fixed to and connected to the side wall of the bellows 5; the mobile air duct 4, the fixed air duct 3 and the fan 2 are symmetrically arranged on both sides of the bellows 5, and a reinforcing rod 402 is fixed between the two mobile air ducts 4 to prevent the left and right sides from being out of sync when moving.

[0029] A sealing structure is fixedly installed on the bottom surface of the interface where the fixed air duct 3 connects to the mobile air duct 4, and the sealing structure includes an annular airbag 10 and an air nozzle 11; the air nozzle 11 is connected to the air source and controlled by a solenoid valve, and when the airbag 10 is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting part 401 of the upper pipe opening of the mobile air duct 4; the outer side of the mobile air duct 4 is fixedly installed with a bellows bracket 6 with a wheel 7 installed at the bottom, and the wheel 7 on one side of the bellows 5 is installed on the output end of the transmission device 8, and the wheel 7 on this side acts as a driving wheel to drive the wheel 7 on the other side to roll. The wheel 7 moves forward and backward on the bellows track 9 driven by the transmission device 8, thereby driving the bellows 5 to move forward and backward. The transmission device 8 is fixedly installed at the bottom of the bellows bracket 6. The bellows track 9 is fixedly installed in the middle of the top surface of the steel structure track platform 12, and the steel structure track platform 12 is fixedly installed on the ground. The bellows track 9 is provided with a limit baffle. When the interface between the fixed air duct 3 and the movable air duct 4 is aligned, the wheel 7 moves to the limit baffle to control the position of the bellows 5 so that the corresponding position of the airbag 10 is guaranteed.

[0030] Example 2: See attached Figure 2-4 A sealing structure in a mobile bellows cooling device for galvanized strip steel is installed in the cooling device of Example 1, and includes an annular airbag 10 and an air nozzle 11; the air nozzle 11 is connected to the air source and controlled by a solenoid valve, and when the airbag 10 is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting portion 401 of the upper pipe opening of the mobile air duct 4; the sealing structure is fixedly mounted on the bottom surface of the interface where the fixed air duct 3 connects the mobile air duct 4.

[0031] The airbag 10 includes an inflatable part and a connecting part with a T-shaped longitudinal section. The air nozzle 11 is vertically inserted into the inflatable part from the top surface of the connecting part, and a through hole corresponding to the air nozzle 11 is provided on the interface where the fixed air duct 3 is connected to the mobile air duct 4. The connecting part is fixed to the fixed air duct 3 by glue.

[0032] Working principle: When the equipment is operating normally, the airbag 10 Figure 2As shown, the air nozzle 11 of the airbag 10 is inflated through the electromagnetic control valve to expand the airbag 10. The air nozzle 11 is provided with a pressure reducing valve at the inlet. The pressure reducing valve is adjusted according to the pressure bearing capacity of the airbag 10 and the pressure of the bellows 5 so that the airbag 10 is inflated and closely attached to the bonding part 401 without leaking. When the equipment is overhauled, the airbag 10 is deflated and retracted to its original state, and the bellows 5 is driven by the transmission device 8 and the wheel 7 to move, the airbag 10 and the bonding part 401 are staggered, the position of the airbag 10 does not change, and the bonding part 401 moves away from the zinc pot with the bellows 5, so as to facilitate the replacement of the air knife and the sinking roller above the zinc pot. After the overhaul is completed, the bellows 5 is reset and the normal operation of the equipment is restored.

[0033] Although the preferred embodiments of the utility model are described above, the utility model is not limited to the above specific embodiments, which are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can make many forms without departing from the purpose of the utility model and the scope of protection of the claims. All of these belong to the protection scope of the utility model.

Claims

1. A mobile bellows cooling device for galvanized steel strip, comprising a fan fixed on a steel structure platform, a fixed air duct fixed to the fan, and a mobile air duct fixed to and connected to the side wall of the bellows; characterized in that: A sealing structure is fixedly installed on the bottom surface of the interface where the fixed air duct is connected to the mobile air duct, and the sealing structure includes an annular airbag and an air nozzle; the air nozzle is connected to the air source and controlled by a solenoid valve, and when the airbag is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting part of the upper pipe opening of the mobile air duct; a bellows bracket with wheels installed on the bottom is fixedly installed on the outer side of the mobile air duct, and the wheels are driven by the transmission device to move back and forth on the bellows track, thereby driving the bellows to move back and forth.

2. The mobile bellows cooling device for galvanized steel strip according to claim 1, characterized in that: The movable air duct, the fixed air duct and the fan are symmetrically arranged on both sides of the wind box, and a reinforcing rod is fixedly installed between the two movable air ducts.

3. The mobile bellows cooling device for galvanized steel strip according to claim 1, characterized in that: The wheel on one side of the bellows is mounted on the output end of the transmission device.

4. A galvanized steel strip mobile bellows cooling device according to claim 3, characterized in that: The transmission device is fixedly mounted on the bottom of the bellows bracket.

5. The mobile bellows cooling device for galvanized steel strip according to claim 1, characterized in that: The bellows track is fixedly mounted on the top surface of the steel structure track platform, and the steel structure track platform is fixedly mounted on the ground.

6. The mobile bellows cooling device for galvanized steel strip according to claim 5, characterized in that: A limit baffle is provided on the bellows track, and when the interface between the fixed air duct and the movable air duct is aligned, the wheel moves to the limit baffle.

7. A sealing structure in a mobile bellows cooling device for galvanized steel strip, the cooling device comprising a fan, a fixed air duct fixed to the fan, and a mobile air duct fixed to and connected to the side wall of the bellows, characterized in that: It includes an annular air bag and an air nozzle, the air nozzle is connected to the air source and controlled by a solenoid valve. When the air bag is filled with gas, its bottom surface is tightly fitted with the top surface of the fitting part of the upper pipe opening of the mobile air duct of the cooling device; the sealing structure is fixedly installed on the bottom surface of the interface where the fixed air duct connects the mobile air duct.

8. The sealing structure in the galvanized steel strip moving bellows cooling device according to claim 7, characterized in that: The airbag comprises an inflatable portion and a connecting portion with a T-shaped longitudinal section.

9. The sealing structure in the mobile bellows cooling device for galvanized steel strip according to claim 8, characterized in that: The air nozzle is vertically inserted downward into the inflation portion from the top surface of the connection portion, and a through hole corresponding to the air nozzle is provided on the interface where the fixed air duct is connected to the movable air duct.

10. The sealing structure in the galvanized steel strip moving bellows cooling device according to claim 8, characterized in that: The connecting portion is fixed to the fixed air duct of the cooling device by glue.

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