Well type quenching cooling device

Abstract

The utility model relates to a well type quenching cooling device, which comprises a well type rack, a lifting appliance, a rotating device and an external spraying system, the rotating device is arranged at the top of the well type rack, the external spraying system comprises an external pipeline and external spraying nozzles, the external spraying nozzles are uniformly arranged on the external pipeline along the circumferential direction and the axial direction of the well type rack, and the external spraying nozzles are arranged on the external pipeline. The outer pipeline is externally connected with a water supply system, the lifting appliance is used for fixing a quenching workpiece to suspend the quenching workpiece in the middle of the well type rack, and the lifting appliance is supported on the rotating device and is driven by the rotating device to rotate. According to the utility model, the quenching workpiece can rotate in the well type rack, the spraying dead angle is eliminated, the spraying amount received by the workpiece in the circumferential direction is uniform, the cooling speed is consistent, and the phenomenon that the quality and the performance of the steel pipe are seriously influenced by deformation bending or local cracking of the quenching or cooling steel pipe is greatly reduced or eliminated.

Description

A well-type quenching and cooling device Technical Field

[0001] This utility model relates to a quenching device. Background Technology

[0002] In metallurgical production processes, heat treatment of steel is often involved. To achieve the desired properties, steel is typically subjected to heat treatment followed by quenching or cooling. This well-type quenching or cooling device utilizes atomized water to quench or cool high-temperature, red-hot steel pipes, and is one of the most commonly used cooling or quenching methods in metallurgical enterprises. However, the quenching or cooling method after heat treatment directly affects the final performance and quality of the steel pipes.

[0003] Traditional quenching or cooling methods involve placing the heat-treated, high-temperature, red-hot steel pipe on a cooling bed and directly spraying water mist from a fixed nozzle onto the surface of the pipe. Since it's difficult to control the rotation of the pipe on the cooling bed, the spray surface of the entire pipe is uneven. This results in inconsistent quenching or cooling rates, localized temperature differences, and uneven stress, causing deformation, bending, or localized cracking of the quenched or cooled steel pipe, severely affecting its quality and performance. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a well-type quenching and cooling device that can rotate the steel pipe, ensure uniform cooling of the steel pipe around the circumference, and reduce the circumferential quenching temperature difference of the steel pipe.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a well-type quenching and cooling device, characterized in that: it includes a well-type frame, a lifting device, a rotating device, and an external spray system. The rotating device is set on the top of the well-type frame. The external spray system includes an external pipeline and external spray nozzles. The external spray nozzles are evenly arranged on the external pipeline along the circumference and axial direction of the well-type frame. The external pipeline is connected to an external water supply system. The lifting device is used to fix the quenching workpiece and suspend the quenching workpiece in the middle of the well-type frame. The lifting device is supported on the rotating device and is driven to rotate by the rotating device.

[0006] Furthermore, it also includes an internal spray system, which comprises a central pipeline and internal spray nozzles. The central pipeline is located on the central axis of the well-type frame, and the internal spray nozzles are evenly arranged axially along the central pipeline. The central pipeline is connected to an external water supply system. When the quenched workpiece is a pipe, the internal spray system can achieve spray cooling of the inner wall of the pipe.

[0007] Furthermore, the well-type frame is erected in a water collection tank, which is used to collect cooling water. The water collection tank is equipped with a drainage system to discharge the quenching cooling water collected in the water collection tank.

[0008] Compared with existing technologies, the advantages of this utility model are as follows: The well-type quenching and cooling device of this utility model adds a rotating device. The lifting device supports the workpiece, allowing it to rotate within the well-type frame. This continuously changes the area of ​​the quenched and cooled steel pipe receiving spray, eliminating spray dead zones and ensuring uniform spray volume and cooling speed throughout the circumference of the steel pipe. This significantly reduces or eliminates the phenomenon of deformation, bending, or localized cracking of the quenched or cooled steel pipe, which seriously affects the quality and performance of the steel pipe. The well-type quenching and cooling device of this application vertically places the high-temperature, red-hot steel pipe, eliminating the deformation caused by uneven support points in horizontal placement and saving equipment space. Furthermore, the optional internal spray system can significantly reduce the temperature difference between the inner and outer surfaces of the steel pipe, making the quenching effect more uniform along the pipe wall thickness direction.

[0009] This utility model of a well-type quenching and cooling device improves the cooling uniformity of quenched steel pipes and the final product quality, enhances user satisfaction with the equipment, promotes the progress of the metallurgical equipment manufacturing industry, and improves the economic benefits for users, thus having great potential for widespread application. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the structure of the well-type quenching and cooling device of this utility model;

[0011] Figure 2 is a top view of the well-type quenching and cooling device shown in Figure 1;

[0012] In the diagram, 1 is the external spray system, 2 is the well frame, 3 is the rotating device, 4 is the water supply system, 5 is the drainage system, 6 is the hoisting device, and 7 is the internal spray system. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings. The embodiments described are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0014] As shown in Figures 1 and 2, the well-type quenching and cooling device of this embodiment includes an external spray system 1, a well-type frame 2, a rotating device 3, a water supply system 4, a drainage system 5, a lifting device 6, and an internal spray system 7. The middle of the well-type frame 2 serves as the spray cooling area. The external spray system 1, the rotating device 3, and the internal spray system 7 are all installed on the well-type frame 2. The external spray system 1 consists of an external pipeline and external spray nozzles. The external pipeline is arranged on the outer periphery of the spray cooling area, and the external spray nozzles are evenly arranged circumferentially and axially on the well-type frame 2. The internal spray system 7 consists of a central pipe and internal spray nozzles. The central pipe is located on the central axis of the well-type frame 2, and the internal spray nozzles are evenly arranged along the central pipe. The lifting device 6 is supported on the rotating device 3, and the quenched steel pipe is fixed below the lifting device 6. The rotating device 3 is a bearing including a drive motor, which drives the lifting device to rotate. Water supply system 4 and drainage system 5 are installed on both sides of well frame 2. The external pipeline and the central pipeline are connected to water supply system 4. Well frame 2 is erected in water collection pool. Water collection pool is used to collect cooling water from the spray cooling area. Drainage system 5 is used to drain water from water collection pool to the outside.

[0015] The heated steel pipe, which is red-hot and requires cooling or quenching, is lifted by the lifting device 6 and placed on the rotating device 3. The rotating device 3 is started, causing the red-hot steel pipe and the lifting device 6 to rotate slowly. The water supply system 4 and the external spray system 1 are opened. If the inner diameter of the red-hot steel pipe needs cooling, the internal spray system 7 is opened. The water mist from the external spray system 1 and the internal spray system 7 is sprayed onto the inner and outer walls of the red-hot steel pipe requiring cooling or quenching, respectively. The drainage system 5 is opened to drain the water collected at the bottom of the well-type frame 2. Once the steel pipe reaches the required cooling or quenching temperature and time, the cooling or quenching process is complete. The water supply system 4, drainage system 5, and rotating device 3 are then closed. After the rotating device 3 stops rotating, the cooled or quenched steel pipe is removed using the lifting device 6, completing the quenching or cooling process.

[0016] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A well-type quenching and cooling device, characterized in that: The equipment includes a well-type frame, a lifting device, a rotating device, and an external spraying system. The rotating device is located on the top of the well-type frame. The external spraying system includes external pipelines and external spray nozzles. The external spray nozzles are evenly arranged on the external pipelines along the circumference and axial direction of the well-type frame. The external pipelines are connected to an external water supply system. The lifting device is used to fix the quenched workpiece and suspend it in the middle of the well-type frame. The lifting device is supported on the rotating device and is driven to rotate by the rotating device.

2. The well-type quenching and cooling device according to claim 1, characterized in that: It also includes an internal spray system, which includes a central pipeline and internal spray nozzles. The central pipeline is located on the central axis of the well frame, and the internal spray nozzles are evenly arranged on the central pipeline along the axial direction. The central pipeline is connected to an external water supply system.

3. The well-type quenching and cooling device according to claim 1, characterized in that: The well-type frame is erected in a water collection tank, which is used to collect cooling water and is equipped with a drainage system.

Images