Emergency control system for furnace door cylinder

Abstract

The utility model relates to the technical field of heating furnace door opening and closing air cylinder control pipelines, and particularly discloses a furnace door air cylinder emergency control system which comprises an air cylinder and an air source pipeline, an electromagnetic valve is installed on the air source pipeline, and the rear portion of the electromagnetic valve is connected with an air inlet pipeline and an air return pipeline. An air inlet of the air cylinder is further connected with an emergency pipeline, and the other end of the emergency pipeline is connected with an air source pipeline. After the air source straight-through control pipeline is additionally arranged, connection with the air cylinder can be directly disconnected no matter an electromagnetic valve breaks down or an air source triple piece on the front portion breaks down, straight-through air source operation is achieved, intervention of an air source control system is not needed, emergency disposal efficiency is improved, and safe operation of production is guaranteed; when a control pipeline breaks down, a worker does not need to enter a site for emergency danger handling operation, the emergency handling process of the worker is eliminated, intrinsic safety of operation is achieved, and spare part consumption of the electromagnetic valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnace door switch cylinder control pipelines, in particular to a furnace door cylinder emergency control system. Background Art

[0002] The heating furnace door cylinder is a key component in the heating furnace equipment. It is mainly used to automatically control the opening and closing of the furnace door to ensure efficient sealing and control of the heat in the furnace. This device is usually combined with pneumatic technology to drive the piston through the pressure of gas (such as compressed air) to achieve smooth, fast and reliable movement of the furnace door. The following are some detailed information about the heating furnace door cylinder:

[0003] 1. Structural features: Completely sealed furnace door structure: In order to maintain the high temperature environment in the furnace and reduce heat loss, the furnace door is usually designed to be completely sealed, and a sealing ring is installed at the place in contact with the furnace mouth to ensure a good sealing effect; Cylinder clamping device: The cylinder clamping device equipped on the furnace door can ensure that the furnace door is tightly closed. By adjusting the pressure of the cylinder, the sealing performance can be effectively controlled to reduce heat loss; Mechanical structure: The cylinder, cylinder seat, bearing seat, furnace door shaft, lifting rod and other components constitute the furnace door opening and closing mechanism. These components work together to achieve precise control of the furnace door.

[0004] 2. Operating principle: When the furnace door needs to be opened, the gas pressure in the cylinder is released or changes direction, the piston retracts, and the furnace door is driven to move upward or sideways through a series of mechanical transmission mechanisms (such as lifting rods, joints, etc.) to achieve opening; when closing, the cylinder is inflated, the piston extends, pushing the furnace door back to the closed position, and the sealing is ensured by the clamping device.

[0005] 3. Safety and control: To ensure safety, the cylinder is usually equipped with a limit switch to monitor the opening and closing status of the furnace door to prevent excessive opening and closing from causing equipment damage or safety accidents; in a high temperature environment, the cylinder and related components need to have good heat resistance and stability to adapt to the extreme working conditions of the heating furnace.

[0006] 4. Maintenance and efficiency: Regularly checking the cylinder's sealing, piston movement smoothness and air pressure stability is essential to maintaining the efficient operation of the heating furnace; optimizing the cylinder's working efficiency and air pressure control system can reduce energy consumption and improve the overall thermal efficiency of the furnace.

[0007] The existing heating furnace door uses a solenoid valve to control the cylinder to raise and lower. In order to reduce production downtime caused by lifting and lowering failures, the cylinder is controlled by two solenoid valves in parallel, one for use and one for backup. Since the cylinder solenoid valve is close to the furnace door, the ambient temperature reaches 60-80℃, and the amount of dust is large, the two solenoid valves are affected by the environment and cause loss whether they are in use or in backup. There is also a situation where the backup cannot be used when the failure switches to backup. At the same time, there is also a situation where the front air source triplex is damaged and the air cannot be supplied directly. Reduced production efficiency

[0008] Therefore, it is urgent to design a furnace door cylinder emergency control system to solve the problem that the spare parts of the existing heating furnace door cylinder gas source system are damaged and difficult to repair, affecting production efficiency. Utility Model Content

[0009] In view of the problems existing in the prior art, the utility model aims to provide a furnace door cylinder emergency control system.

[0010] The technical solution adopted by the utility model to solve its technical problems is: a furnace door cylinder emergency control system, including a cylinder and an air source pipeline, a solenoid valve is installed on the air source pipeline, the rear part of the solenoid valve is connected to the air intake pipeline and the air return pipeline, the air intake pipeline is connected to the air intake port of the cylinder, the air return pipeline is connected to the exhaust port of the cylinder, the air intake port of the cylinder is also connected to the emergency pipeline, and the other end of the emergency pipeline is connected to the air source pipeline.

[0011] Specifically, a gas source triplex is also installed on the gas source pipeline, and the gas source triplex is located between the emergency pipeline interface and the solenoid valve.

[0012] Specifically, the gas source pipeline is connected to the emergency pipeline through a tee piece 1, and the emergency pipeline, the air intake pipeline and the air intake pipeline of the cylinder are connected through a tee piece 2.

[0013] Specifically, a gas source valve is installed on the gas source pipeline, and an emergency manual valve is installed on the emergency pipeline.

[0014] Specifically, manual valves are installed on the air intake pipe and the emergency pipe at the air intake side close to the cylinder, and a manual valve is installed on the air return pipe at the exhaust side close to the cylinder.

[0015] Specifically, a lifting chain is connected to the telescopic rod of the cylinder, the other end of the lifting chain is connected to the furnace door, the lifting chain is rollingly mounted on a fixed pulley, and the fixed pulley is mounted on the furnace body of the heating furnace.

[0016] The utility model has the following beneficial effects:

[0017] After the furnace door cylinder emergency control system designed by the utility model adds a gas source direct control pipeline, no matter the solenoid valve fails or the front gas source triplex fails, the connection with the cylinder can be directly disconnected to realize direct gas source operation without the intervention of the gas source control system, thereby improving the efficiency of emergency disposal and ensuring safe production operation.

[0018] The furnace door cylinder emergency control system designed by the utility model has improved handling efficiency. When a control pipeline fails, there is no need for personnel to enter the site for emergency handling operations, which eliminates the personnel emergency handling process, achieves inherent safety of the operation, and reduces the spare parts consumption of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the piping connection structure of the furnace door cylinder emergency control system.

[0020] In the figure: 1-cylinder; 2-furnace door; 3-lifting chain; 4-fixed pulley; 5-gas source pipeline; 6-emergency pipeline; 7-air intake pipeline; 8-air return pipeline; 9-gas source triplex; 10-solenoid valve; 11-gas source valve; 12-emergency manual valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] like Figure 1 As shown, a furnace door cylinder emergency control system includes a cylinder 1, a furnace door 2, a gas source pipeline 5, an emergency pipeline 6, an air intake pipeline 7, an air return pipeline 8 and a solenoid valve 10. The solenoid valve 10 is installed on the gas source pipeline 5. The rear part of the solenoid valve 10 is connected to the air intake pipeline 7 and the air return pipeline 8. The air intake pipeline 7 is connected to the air inlet of the cylinder 1, and the air return pipeline 8 is connected to the exhaust port of the cylinder 1. The air inlet of the cylinder 1 is also connected to the emergency pipeline 6, and the other end of the emergency pipeline 6 is connected to the gas source pipeline 5.

[0024] An air source triplet 9 is also installed on the air source pipeline 5. The air source triplet 9 is a common component used in pneumatic systems. It includes three air source processing components, namely, an air filter, a pressure reducing valve and an oil mist collector. The three components are assembled together and are called a pneumatic triplet. The triplet is used to purify and filter the air source entering the pneumatic instrument and reduce the pressure to the rated air source pressure supplied to the instrument, which is equivalent to the function of the power transformer in the circuit. The air source triplet 9 is located between the interface between the air source pipeline 5 and the emergency pipeline 6 and the solenoid valve 10.

[0025] The gas source pipeline 5 is connected to the emergency pipeline 6 through a tee piece 1, and the emergency pipeline 6, the air intake pipeline 7 and the air intake pipeline of the cylinder 1 are connected through a tee piece 2.

[0026] An air source valve 11 is installed on the air source pipeline 5 , and an emergency manual valve 12 is installed on the emergency pipeline 6 .

[0027] Manual valves are installed on the air intake pipe 7 and the emergency pipe 6 and on the air intake side close to the cylinder 1, a manual valve is installed on the air return pipe 8 and on the exhaust side close to the cylinder 1, and a manual valve is installed on the air source pipe 5 in front of the air source triplet 9.

[0028] The telescopic rod of the cylinder 1 is connected to a lifting chain 3, the other end of the lifting chain 3 is connected to the upper part of the furnace door 2, the lifting chain 3 is rollingly mounted on a fixed pulley 4, and the fixed pulley 4 is mounted on the furnace body of the heating furnace.

[0029] Embodiment 2: The working principle of the furnace door cylinder emergency control system adopting the structural form of embodiment 1.

[0030] The utility model directly leads the gas source pipe (emergency pipeline 6) to the two three-way pieces of the air inlet at the upper end of the cylinder 1 in front of the air source triplet 9 of the air intake; only the manual ball valve is retained on the emergency pipeline 6; after adding the air source direct control pipeline, whether it is a fault of the solenoid valve 10 or a fault of the front air source triplet 9, it can be directly disconnected from the cylinder 1 to achieve direct air source operation, without the intervention of the air source control system, improving the efficiency of emergency handling and ensuring safe production operation. When the control pipeline fails, there is no need for personnel to enter the site for emergency handling operations, eliminating the personnel emergency handling process, achieving the inherent safety of the operation, and reducing the spare parts consumption of the solenoid valve 10.

[0031] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0032] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A furnace door cylinder emergency control system, characterized in that: It includes a cylinder and an air source pipeline, a solenoid valve is installed on the air source pipeline, the rear of the solenoid valve is connected to an air intake pipeline and an air return pipeline, the air intake pipeline is connected to the air intake port of the cylinder, the air return pipeline is connected to the exhaust port of the cylinder, the air intake port of the cylinder is also connected to an emergency pipeline, and the other end of the emergency pipeline is connected to the air source pipeline.

2. The furnace door cylinder emergency control system according to claim 1, characterized in that: The gas source pipeline is also equipped with a gas source triplex, which is located between the emergency pipeline interface and the solenoid valve.

3. The furnace door cylinder emergency control system according to claim 2, characterized in that: The gas source pipeline is connected to the emergency pipeline through a tee piece 1, and the emergency pipeline, the air intake pipeline and the air intake pipeline of the cylinder are connected through a tee piece 2.

4. The furnace door cylinder emergency control system according to claim 1, characterized in that: An air source valve is installed on the air source pipeline, and an emergency manual valve is installed on the emergency pipeline.

5. The furnace door cylinder emergency control system according to claim 1, characterized in that: Manual valves are installed on the air intake pipe and the emergency pipe at the air intake side close to the cylinder, and a manual valve is installed on the air return pipe at the exhaust side close to the cylinder.

6. The furnace door cylinder emergency control system according to claim 1, characterized in that: The telescopic rod of the cylinder is connected with a lifting chain, the other end of the lifting chain is connected with a furnace door, the lifting chain is rollingly mounted on a fixed pulley, and the fixed pulley is mounted on a furnace body of the heating furnace.

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