Furnace gas turbulent flow device of heat treatment furnace

Abstract

The utility model relates to the technical field of heat treatment furnace gas turbulence, in particular to a heat treatment furnace gas turbulence device which comprises a horizontal plate, a machine cover embedded on the inner side of the horizontal plate, a motor cover fixed on the inner side of the machine cover, a coil and a motor shaft arranged in the motor cover, and a first cover plate, a second cover plate and a third cover plate fixed on the upper side of the motor cover through bolts. Bearings are clamped between the outer side of the motor shaft and the second cover plate and between the outer side of the motor shaft and the motor cover, a water jacket area is formed in the motor cover, a water inlet pipe is communicated with the water jacket area on the outer side of the motor cover, an impeller is fixed to the bottom end of the motor shaft, a heat preservation layer is clamped between the machine cover and the horizontal plate, and an asbestos cord is pressed between the machine cover and the upper side of the horizontal plate. The utility model solves the problems that the existing heat treatment furnace adopts a simple mechanical stirring or natural convection mode to promote the flow of furnace gas, but the mode is difficult to realize the accurate control and effective regulation of the flow of the furnace gas, and the non-uniform flow of the furnace gas cannot be fundamentally solved.

Description

Technical Field

[0001] This utility model relates to the field of furnace gas turbulence technology in heat treatment furnaces, specifically to a furnace gas turbulence device for heat treatment furnaces. Background Technology

[0002] In heat treatment processes, the heat treatment furnace is a critical piece of equipment, and the flow state of the furnace gas inside it has a vital impact on the heat treatment quality of the workpiece. Uniform flow of furnace gas ensures that all parts of the workpiece are heated evenly, thus guaranteeing consistent microstructure and properties. However, in actual heat treatment processes, problems such as poor furnace gas flow and localized eddies often occur, leading to uneven temperature distribution within the furnace and significant temperature differences between different parts of the workpiece. This, in turn, affects the heat treatment effect and reduces the quality and service life of the workpiece.

[0003] To improve the flow of furnace gas, people have been seeking effective solutions. Currently, some heat treatment furnaces use simple mechanical stirring or natural convection to promote the flow of furnace gas, but these methods are difficult to achieve precise control and effective regulation of the flow of furnace gas, and cannot fundamentally solve the problem of uneven flow of furnace gas. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing heat treatment furnaces use simple mechanical stirring or natural convection to promote furnace gas flow, but these methods are difficult to achieve precise control and effective regulation of furnace gas flow, and cannot fundamentally solve the problem of uneven furnace gas flow.

[0005] To solve the above problems, the technical solution adopted by this utility model is a furnace gas turbulence device for heat treatment furnace, including a horizontal plate, an inner cover of which is embedded, and a motor cover is fixed inside the cover. The motor cover contains a coil and a motor shaft. The upper side of the motor cover is fixed with a cover plate 1, a cover plate 2, and a cover plate 3 by bolts. Bearings are sandwiched between the outer side of the motor shaft and the cover plate 2 and the motor cover. A water jacket area is opened inside the motor cover. A water inlet pipe is connected to the water jacket area on the outer side of the motor cover. An impeller is fixed at the bottom end of the motor shaft. An insulation layer is sandwiched between the cover and the horizontal plate. An asbestos rope is pressed between the cover and the upper side of the horizontal plate.

[0006] As a further embodiment of this utility model: the horizontal plate has a rectangular structure, and mounting holes are provided at all four corners for fixing the entire device inside the heat treatment furnace.

[0007] As a further embodiment of this utility model: the bearing is a deep groove ball bearing, and the bearing is connected to the motor shaft, the second cover plate, and the motor cover by an interference fit.

[0008] As a further embodiment of this utility model: a valve is provided on the water inlet pipe, which is a ball valve, used to control the flow rate of water entering the water jacket area.

[0009] As a further embodiment of this utility model: the impeller is made of stainless steel, and its blades are arranged in a spiral shape, with a number of 4-6 blades.

[0010] As a further embodiment of this utility model: the insulation layer is aluminum silicate fiber felt with a thickness of 50-80mm, and the diameter of the asbestos rope is 8-12mm.

[0011] Compared with the prior art, the advantages of this utility model are as follows: The furnace gas turbulence device in this application generates stable and controllable furnace gas flow by driving the impeller to rotate through a motor. The motor speed can be flexibly adjusted according to different heat treatment process requirements, thereby achieving precise control of the furnace gas flow direction and speed, effectively improving the uniformity of furnace gas flow and enhancing heat treatment quality. A water jacket area is provided inside the motor cover, and cooling water is introduced through the water inlet pipe, which can promptly remove the heat generated during motor operation, effectively reducing the motor's operating temperature and ensuring stable operation of the device. At the same time, it avoids adverse effects on the surrounding environment and workpieces due to heat accumulation. An insulation layer is sandwiched between the cover and the horizontal plate, which can effectively reduce heat loss in the furnace and reduce energy consumption. At the same time, asbestos rope is pressed between the cover and the upper part of the horizontal plate, enhancing the sealing between the device and the furnace body, preventing external impurities and cold air from entering the furnace, and ensuring the purity and temperature uniformity of the furnace gas. The overall structure of the device is relatively simple, and the connection and layout between the components are reasonable, making it easy to install and disassemble. When the device malfunctions, the problem can be quickly located and repaired, reducing maintenance costs and difficulty. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a half-sectional view of the overall structure of a furnace gas turbulence device in a heat treatment furnace according to the present invention.

[0014] In the attached image:

[0015] 1. Horizontal plate; 2. Machine cover; 3. Coil; 4. Motor shaft; 5. Cover plate one; 6. Cover plate two; 7. Cover plate three; 8. Bearing; 9. Water jacket area; 10. Water inlet pipe; 11. Impeller; 12. Insulation layer; 13. Asbestos rope; 14. Motor cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0018] Combined with appendix Figure 1 It can be seen that the device includes a horizontal plate 1, which has a rectangular structure and is made of high-temperature resistant, high-strength metal materials, such as stainless steel. This material can withstand the high-temperature environment inside the heat treatment furnace, ensuring the stability of the device. Mounting holes are provided at all four corners of the horizontal plate 1, with the hole diameter and spacing designed according to the installation requirements inside the heat treatment furnace. The entire device is securely installed in a suitable position inside the heat treatment furnace using bolts and other fasteners passing through the mounting holes. A machine cover 2 is embedded inside the horizontal plate 1, and a motor cover 14 is fixed inside the machine cover 2. The machine cover 2 is embedded inside the horizontal plate 1, providing protection and support for the internal motor and other components. A motor cover 3 is fixed inside the machine cover 2, and the motor cover 3 contains coils (not individually labeled), serving as a component of the motor and connected to the motor shaft 4.

[0019] The upper side of the motor cover 3 is fixed with cover plate 5, cover plate 6, and cover plate 7 by bolts. During installation, the motor and other components are first placed in a suitable position inside the motor cover 3. Then, cover plate 5, cover plate 6, and cover plate 7 are aligned with the installation positions on the upper side of the motor cover 3 and tightened with bolts to ensure a good seal between each cover plate and the motor cover 3, preventing furnace gas from entering the motor cover 3 and affecting the normal operation of the motor. The motor cover 14 contains a coil 3 and a motor shaft 4. The upper side of the motor cover 14 is fixed with cover plate 5, cover plate 6, and cover plate 7 by bolts. Bearings 8 are clamped between the outer side of the motor shaft 4 and cover plate 6, and between the outer side of the motor shaft 4 and cover plate 6, and between the outer side of the motor shaft 4 and cover plate 3. In this embodiment, the bearings 8 are deep groove ball bearings. Deep groove ball bearings 8 have advantages such as high load-bearing capacity and low coefficient of friction, which can ensure the smooth rotation of the motor shaft 4.

[0020] The bearing 8 is connected to the motor shaft 4, cover plate 6, and motor cover 3 via an interference fit. During installation, the bearing 8 is accurately pressed onto the motor shaft 4 and corresponding mounting holes using specialized press-fit equipment, ensuring a tight fit between the bearing 8 and all components. This reduces vibration and noise during rotation and improves the operational stability of the device. The motor cover 14 has a water jacket area 9 inside, and a water inlet pipe 10 is connected to the water jacket area 9 on the outside of the motor cover 14. The motor cover 3 also has a water jacket area 9 inside, surrounding the motor and other heat-generating components. A water inlet pipe 10 is connected to the water jacket area 9 on the outside of the motor cover 3, and the water inlet pipe 10 is equipped with a ball valve. When the device is running, cooling water is introduced into the water jacket region 9 from the inlet pipe 10 by opening the ball valve. The cooling water flows within the water jacket region 9, absorbing the heat generated by components such as the motor, and then is discharged through the outlet pipe, thereby effectively dissipating heat from the motor and other components and ensuring the device can operate normally in high-temperature environments. An impeller 11 is fixed to the bottom end of the motor shaft 4. The impeller 11 is made of stainless steel. Stainless steel has good corrosion resistance and wear resistance, and can be used for a long time in the harsh environment of the heat treatment furnace. The blades of the impeller 11 are spirally distributed, and the number of blades is 4-6. This spiral blade design effectively propels the furnace gas flow when the impeller 11 rotates, creating a stable turbulence effect and ensuring uniform gas distribution within the furnace. An insulation layer 12 is sandwiched between the shroud 2 and the horizontal plate 1, and an asbestos rope 13 is pressed between the shroud 2 and the upper side of the horizontal plate 1. The insulation layer 12 is made of aluminosilicate fiber felt with a thickness of 50-80mm. The aluminosilicate fiber felt has excellent insulation properties, effectively reducing heat loss within the furnace and lowering energy consumption.

[0021] An asbestos rope 13 with a diameter of 8-12mm is pressed between the machine cover 2 and the upper side of the horizontal plate 1. The asbestos rope 13 has good sealing performance, which can prevent external impurities and cold air from entering the furnace, and further enhance the sealing between the machine cover 2 and the horizontal plate 1, ensuring the purity and temperature uniformity of the furnace gas.

[0022] The working principle of this application is as follows: When the heat treatment furnace starts working, cooling water is introduced into the water jacket area 9 through the water inlet pipe 10. At the same time, the motor is started, and the motor drives the motor shaft 4 to rotate. The impeller 11 at the bottom of the motor shaft 4 rotates accordingly. The rotation of the impeller 11 promotes the flow of furnace gas, creating a turbulence effect, which makes the furnace gas evenly distributed in the furnace and improves the heat treatment quality. During the operation of the device, the bearing 8 ensures the smooth rotation of the motor shaft 4, the insulation layer 12 reduces heat loss, and the asbestos rope 13 prevents external impurities and cold air from entering. All components work together to ensure the stable and efficient operation of the device.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A furnace gas turbulence device for a heat treatment furnace, characterized by: The utility model provides a horizontal plate (1) is inlayed with machine cover (2) inside, is fixed with motor cover (14) inside machine cover (2), is equipped with coil (3) and motor shaft (4) inside motor cover (14), is fixed with cover one (5), cover two (6) and cover three (7) on motor cover (14) upside, is set up bearing (8) between motor shaft (4) outside and cover two (6), motor cover (14), is seted up water jacket area (9) inside motor cover (14), is seted up water inlet pipe (10) in the water jacket area (9) intercommunication of motor cover (14) outside, is fixed with impeller (11) at motor shaft (4) bottom, is seted up heat preservation layer (12) between machine cover (2) and horizontal plate (1), is pressed and seted up asbestos rope (13) between machine cover (2) and horizontal plate (1) upside.

2. A furnace gas turbulence device for a heat treatment furnace as claimed in claim 1, characterized in that: The horizontal plate (1) is of rectangular structure, and mounting holes are formed at four corners thereof.

3. A furnace gas turbulence device for a heat treatment furnace as defined in claim 1, characterized in that: The bearing (8) is a deep groove ball bearing (8), and the bearing (8) is connected with the motor shaft (4), the cover two (6) and the motor cover (14) through interference fit.

4. A furnace gas turbulence device for a heat treatment furnace as defined in claim 1, characterized in that: The water inlet pipe (10) is provided with a valve, which is a ball valve.

5. A furnace gas turbulence device for a heat treatment furnace as defined in claim 1, characterized in that: The impeller (11) is made of stainless steel, and the blades thereof are distributed in a spiral shape, and the number of the blades is 4-6.

6. A furnace gas turbulence device for a heat treatment furnace as defined in claim 1, characterized in that: The heat preservation layer (12) is an aluminum silicate fiber felt, and the thickness thereof is 50-80 mm, and the diameter of the asbestos rope (13) is 8-12 mm.

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