Induction heating device for steel pipe production
By setting the inert gas filling system and cleaning module in the steel pipe induction heating device, the problem of oxide in the heating process of the steel pipe is solved, and the efficient heating and quality assurance of the steel pipe are realized.
Patent Information
- Application Number
- CN202323463253.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-19
AI Technical Summary
During the induction heating process of steel pipes, steel pipes are prone to oxidation scale, resulting in material loss and uneven performance, which in turn affects the quality of subsequent heat treatment.
Design a steel pipe production sensing heating device, including the main module and cleaning module. The main module uses inductive coils, circular empty pipes and air intake pipes in the inner cavity of the shell, and fills the internal cavity of the shell body with an inert gas to prevent oxidation. The cleaning module brushes the surface of the steel pipe through the rotor and ring brush to remove the oil and pollution impurities.
Effectively avoid contact with the air during heating, prevent the formation of oxide, improve the heating performance and quality of the steel pipe, and at the same time extend the service life of the steel pipe.
Smart Images
Figure CN222424043U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipe induction heating devices, in particular to an induction heating device for steel pipe production. Background Art
[0002] In the field of steel pipe heating, induction heating has been widely used because of its advantages such as fast, energy-saving and high efficiency. There are two existing induction heating methods. One is to set up a long strip of induction coil, and the steel pipe is placed in the coil without moving. The other is to set up a small section of induction coil, and the steel pipe gradually passes through the coil during the heating process to achieve continuous production.
[0003] However, when induction heating is performed on steel pipes, the following disadvantages usually exist: the steel pipes are prone to produce oxide scale during the heating process, which not only easily causes the loss of steel pipe materials, but even leads to uneven organization and performance of the steel pipes during subsequent heat treatment, thus becoming waste. Therefore, there is room for improvement. Utility Model Content
[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.
[0005] To this end, the technical solution adopted by the utility model is: an induction heating device for steel pipe production, including: a main module and a cleaning module, the main module includes a shell, an induction coil installed on the inner wall of the shell, an annular empty pipe installed on the inner wall of the shell, an air intake pipe installed on the outer surface of the shell and connected to the annular empty pipe, and an air pressure sensor installed on the shell and extending into the inner cavity of the shell.
[0006] The cleaning module includes a bracket symmetrically arranged on one side of the shell, a rotating member rotatably installed on both sides of the opposite bracket, a plurality of annular brushes installed in an array on the inner wall of the rotating member, a gear ring fixedly sleeved on the outer surface of the rotating member, and a driving member installed on the bracket and meshing with the gear ring.
[0007] In a preferred example, the utility model can be further configured as follows: a plurality of spray holes are formed in a circular array on the annular hollow tube, and the spray holes are connected to the inner cavity of the annular hollow tube.
[0008] In a preferred example, the utility model can be further configured as follows: the driving member includes a motor mounted on a bracket and a gear fixed on the motor shaft, and the gear is meshed with a gear ring.
[0009] In a preferred example, the utility model can be further configured as follows: an annular groove is opened on the bracket, annular protrusions are fixed on both sides of the rotating member, and the annular protrusions are rotatably embedded in the annular groove.
[0010] In a preferred example, the utility model can be further configured as follows: the inner wall of the rotating ring located on one side of the annular brush is arranged in an inclined surface.
[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:
[0012] 1. In the utility model, a rotating member is installed on one side of the shell through a bracket, and a plurality of groups of annular brushes are installed in an array on the inner wall of the rotating member, a gear ring is installed on the outer side surface of the rotating member, and a driving member meshing with the gear ring is installed on the bracket. When the steel pipe enters the shell for induction heating, the steel pipe needs to pass through the rotating member. At this time, the driving member drives the gear ring to rotate, and the rotation of the gear ring drives the rotating member to rotate. The rotation of the rotating member drives the annular brush to rotate, and the surface of the steel pipe is scrubbed to remove oil and impurities on the surface of the steel pipe to avoid oxidation and production of oxide scale during the subsequent induction heating process, thereby increasing practical performance.
[0013] 2. In the utility model, the induction coil is arranged in the inner cavity of the shell, and an annular hollow tube is installed on the inner wall of one side of the inner cavity of the shell, and an air intake pipe is arranged to be connected with the annular hollow tube. An air pressure sensor extending into the inner cavity of the shell is installed on the shell, and an inert gas is sent into the annular hollow tube through the air intake pipe, so that the inert gas is sprayed out through the annular hollow tube and filled in the inner cavity of the shell. By filling the inner cavity of the shell with inert gas, it can effectively avoid oxidation of the steel pipe when it comes into contact with air during induction heating, thereby ensuring the performance and quality of the steel pipe when heated. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.
[0017] Reference numerals:
[0018] 100, main body module; 110, shell; 120, induction coil; 130, annular hollow pipe; 131, spray hole; 140, air intake pipe; 150, air pressure sensor;
[0019] 200, cleaning module; 210, bracket; 211, annular groove; 220, rotating ring; 221, annular protrusion; 230, annular brush; 240, gear ring; 250, driving member; 251, motor; 252, gear. Implementation
[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0021] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Example
[0022] Combination Figure 1-3 As shown, this embodiment provides an induction heating device for steel pipe production, including: a main body module 100 and a cleaning module 200,
[0023] Among them, the main body module 100 includes a shell 110, an induction coil 120 installed on the inner wall of the shell 110, an annular hollow pipe 130 installed on the inner wall of the shell 110, an air intake pipe 140 installed on the outer surface of the shell 110 and connected to the annular hollow pipe 130, and an air pressure sensor 150 installed on the shell 110 and extending into the inner cavity of the shell 110.
[0024] The shell 110 is cylindrical and is used to install the induction coil 120. The induction coil 120 is located in a closed environment. The induction coil 120 is installed on the inner wall of the shell 110 to heat the steel pipe and facilitate heat treatment of the steel pipe.
[0025] The annular hollow tube 130 is installed on the inner wall of the shell 110. A plurality of spray holes 131 are opened in an annular array on the annular hollow tube 130, and the spray holes are connected with the inner cavity of the annular hollow tube 130, so that the inert gas in the annular hollow tube 130 can be evenly sprayed into the inner cavity of the shell 110. One end of the air inlet pipe 140 is connected with the inert gas tank, and the other end is connected with the annular hollow tube 130, so as to transport the inert gas in the annular hollow tube 130.
[0026] The air pressure sensor 150 is used to monitor the air pressure value inside the shell 110 in real time to ensure that the air pressure value inside the shell 110 is greater than the external environment air pressure, thereby preventing external dust and impurities from entering the inner cavity of the shell 110 .
[0027] The cleaning module 200 is used to clean the surface of the steel pipe before heating it, and includes a bracket 210 symmetrically arranged on one side of the shell 110, rotating parts rotatably installed on both sides of the relative bracket 210, a plurality of annular brushes 230 installed in an array on the inner wall of the rotating part, a gear ring 240 fixedly sleeved on the outer surface of the rotating part, and a driving part 250 installed on the bracket 210 and meshing with the gear ring 240.
[0028] The bracket 210 is used to install the rotating part to ensure the stability of the rotating part during rotation. The rotating part is used to install the annular brush 230 and rotate with the annular brush 230. The annular brush 230 is arranged in multiple groups and is used to rotate under the drive of the rotating part to brush the surface of the steel pipe and remove dust and impurities on the surface of the steel pipe. In addition, the inner wall of the rotating ring 220 located on one side of the annular brush 230 is arranged in an inclined surface to facilitate the discharge of debris generated by cleaning from the inclined surface.
[0029] The driving member 250 is used to drive the rotating member to rotate, and includes a motor 251 installed on the bracket 210 and a gear 252 fixed on the shaft of the motor 251. The gear 252 and the gear ring 240 are meshed with each other, so that when the motor 251 rotates, the gear 252 is driven to rotate, and when the gear 252 rotates, it drives the gear ring 240 to rotate. The rotation of the gear ring 240 drives the rotating member to rotate.
[0030] The working principle and use process of the utility model are as follows: when in use, one side of the steel pipe is inserted into the inner cavity of the rotating part, at which time the motor 251 is started, driving the gear 252 to rotate, the rotation of the gear 252 drives the gear ring 240 to rotate, the rotation of the gear ring 240 drives the rotating part to rotate, and the rotation of the rotating part drives the annular brush 230 to rotate. When the annular brush 230 rotates, the surface of the steel pipe is cleaned to remove oil and impurities on the surface of the steel pipe. Then the steel pipe enters the inner cavity of the shell 110, and the inert gas is sent into the annular empty pipe 130 through the air inlet pipe 140, and is sprayed out through the spray hole 131 in the annular empty pipe 130, filling the inner cavity of the shell 110 to prevent the steel pipe from contacting with the air during heating. Then the steel pipe enters the induction coil 120, and the induction coil 120 is started to heat the steel pipe.
[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An induction heating device for steel pipe production, comprising: A main body module (100) and a cleaning module (200), characterized in that the main body module (100) comprises a shell (110), an induction coil (120) mounted on the inner wall of the shell (110), an annular hollow pipe (130) mounted on the inner wall of the shell (110), an air intake pipe (140) mounted on the outer surface of the shell (110) and connected to the annular hollow pipe (130), and an air pressure sensor (150) mounted on the shell (110) and extending into the inner cavity of the shell (110); The cleaning module (200) comprises a bracket (210) symmetrically arranged on one side of the housing (110), rotating members rotatably mounted on opposite sides of the bracket (210), a plurality of annular brushes (230) mounted in an array on the inner wall of the rotating member, a toothed ring (240) fixedly sleeved on the outer surface of the rotating member, and a driving member (250) mounted on the bracket (210) and meshing with the toothed ring (240).
2. The induction heating device for steel pipe production according to claim 1, characterized in that: The annular hollow tube (130) is provided with a plurality of spray holes (131) in an annular array, and the spray holes are in communication with the inner cavity of the annular hollow tube (130).
3. The induction heating device for steel pipe production according to claim 1, characterized in that: The driving member (250) comprises a motor (251) mounted on a bracket (210) and a gear (252) fixed on a shaft of the motor (251); the gear (252) and the gear ring (240) are meshed with each other.
4. The induction heating device for steel pipe production according to claim 1, characterized in that: An annular groove (211) is formed on the bracket (210), annular protrusions (221) are fixed on both sides of the rotating member, and the annular protrusions (221) are rotatably embedded in the annular groove (211).
5. The induction heating device for steel pipe production according to claim 1, characterized in that: The inner wall of the rotating ring (220) located on one side of the annular brush (230) is arranged in an inclined surface.