High-precision temperature-controlled gas heat treatment furnace with filtering structure

Abstract

The utility model discloses a high accuracy temperature control gas heat treatment furnace with filter structure, including gas heat treatment furnace, the rear end fixed mounting of gas heat treatment furnace has the burner, one side of burner is connected with gas inlet pipe, one side mounting of gas heat treatment furnace has temperature control equipment, another side of burner is connected with air intake structure. The utility model discloses a high accuracy temperature control gas heat treatment furnace with filter structure, set up air intake structure, filter in the air -intaking time, improve the protective property, through the air filter cartridge of set up backflushing air pipe, and motor can drive backflushing nozzle to rotate, make backflushing nozzle in the inside air filter cartridge backflushing cleaning, improve the efficiency and convenience of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of gas-fired heat treatment furnace technology, specifically a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure. Background Technology

[0002] Gas-fired heat treatment furnaces play a crucial role in the heat treatment process of metallic materials. They generate a high-temperature environment by burning a mixture of gas and air to achieve the required processes such as heating, annealing, and quenching of workpieces. To ensure the quality of heat treatment, high-precision temperature control technology is essential, as it directly affects the microstructure and properties of the material and the final product's yield.

[0003] Currently, existing gas-fired heat treatment furnaces typically employ temperature control equipment (such as PID controllers) combined with thermocouples or infrared temperature measurement technology to monitor and regulate the furnace temperature. However, in practical applications, the accuracy and stability of temperature control are still limited by the following factors:

[0004] 1. Air impurities affect combustion efficiency: Dust and particulate matter in the air can easily enter the burner, leading to incomplete combustion, flame temperature fluctuations, and thus affecting the uniformity and stability of the furnace temperature.

[0005] 2. Inconvenient maintenance: Some equipment filters the air by installing filters. Since the filters are easy to clog and lack self-cleaning function, they rely on manual intervention to disassemble and clean them, which increases the complexity of maintenance.

[0006] To address this, we propose a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure. The filtration mechanism is located at the air inlet and is easy to maintain, improving maintenance efficiency and effectively solving the problems in the background technology.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure, comprising a gas-fired heat treatment furnace, a burner fixedly installed at the rear end of the gas-fired heat treatment furnace, a gas inlet pipe connected to one side of the burner, a temperature control device installed on one side of the gas-fired heat treatment furnace, and an air intake structure connected to the other side of the burner. The air intake structure includes a first protective cover, a second protective cover, a motor, a vacuum pump, an exhaust pipe, a backflow pipe, an intake pipe, a backflow nozzle, a worm gear, a sealing plate, a through hole, an air filter cartridge, and a worm. The first protective cover is fixed to one end of the frame of the gas-fired heat treatment furnace.

[0011] Preferably, an air intake space is left between the lower end of the first protective cover and the ground, and the lower end of the first protective cover is the air intake end.

[0012] Preferably, the air filter cartridge is fixed to the upper part of the inner cavity of the first protective cover, the sealing plate is fixed to the lower outer surface of the air filter cartridge, the through hole is opened in the middle of the upper outer surface of the first protective cover and the through hole communicates with the upper part of the inner cavity of the first protective cover, the lower end of the backflow air pipe extends through the through hole into the interior of the air filter cartridge, the backflow nozzle is located inside the air filter cartridge and the backflow nozzle is fixed to the lower outer wall of the backflow air pipe.

[0013] Preferably, the worm gear is fixed to the outer wall of the upper part of the backflush pipe, the worm is located on one side of the outer surface of the worm gear, the second protective cover is fixed to the middle of the upper outer surface of the first protective cover, the motor is fixedly installed at one end of one side of the outer surface of the second protective cover, one side of the outer surface of the worm meshes with one side of the outer surface of the worm gear, a sealed bearing is provided between the worm and the second protective cover, the worm is rotatably connected to the second protective cover through the bearing, a coupling is provided between the worm and the motor, and one end of the outer surface of the worm is fixedly connected to one end of the outer surface of the output shaft of the motor through the coupling.

[0014] Preferably, the upper end of the backflush pipe extends to the upper outer surface of the second protective cover, a sealed bearing is provided between the backflush pipe and the second protective cover, the upper part of the backflush pipe is rotatably connected to the second protective cover through the sealed bearing, and the upper end of the backflush pipe is externally connected to an air supply pump through a pneumatic rotary joint.

[0015] Preferably, the suction pump is fixed to one side of the upper outer surface of the second protective cover, the suction pipe is connected to the lower outer surface of the suction pump, and the lower end of the suction pipe extends into one side of the upper part of the inner cavity of the second protective cover. The suction pump is connected between one side of the suction pipe and the burner.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure, which has the following beneficial effects:

[0018] 1. This high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure can effectively intercept dust and particulate matter in the air through the air filter structure, prevent impurities from entering the burner, and ensure full mixing and stable combustion of gas and air.

[0019] 2. This high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure, through the set backflow pipe and air filter cartridge, the motor can drive the backflow nozzle to rotate, so that the backflow nozzle can backflow and clean the air filter cartridge inside the air filter cartridge, improving the efficiency and convenience of maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to this utility model.

[0021] Figure 2 This is a structural diagram of the air intake structure in a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to this utility model.

[0022] Figure 3 This is a side cross-sectional view of the air intake structure in a high-precision temperature-controlled gas-fired heat treatment furnace with a filter structure according to the present invention.

[0023] Figure 4 This is a schematic diagram of the motor and worm gear in a high-precision temperature-controlled gas heat treatment furnace with a filtration structure according to this utility model.

[0024] In the diagram: 1. Gas-fired heat treatment furnace; 2. Temperature control equipment; 3. Burner; 4. Gas inlet pipe; 5. Air inlet structure; 6. First protective cover; 7. Second protective cover; 8. Motor; 9. Air pump; 10. Exhaust pipe; 11. Backdraft pipe; 12. Suction pipe; 13. Backdraft nozzle; 14. Worm gear; 15. Sealing plate; 16. Through hole; 17. Air filter cartridge; 18. Worm gear. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] This embodiment is a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure.

[0027] like Figure 1-4As shown, the furnace includes a gas-fired heat treatment furnace 1. A burner 3 is fixedly installed at the rear end of the gas-fired heat treatment furnace 1. A gas inlet pipe 4 is connected to one side of the burner 3. A temperature control device 2 is installed on one side of the gas-fired heat treatment furnace 1. An air intake structure 5 is connected to the other side of the burner 3. The air intake structure 5 includes a first protective cover 6, a second protective cover 7, a motor 8, a vacuum pump 9, an exhaust pipe 10, a backflow pipe 11, an intake pipe 12, a backflow nozzle 13, a worm gear 14, a sealing plate 15, a through hole 16, an air filter cartridge 17, and a worm 18. The first protective cover 6 is fixed to one end of the frame of the gas-fired heat treatment furnace 1.

[0028] An air intake space is left between the lower end of the first protective cover 6 and the ground, and the lower end of the first protective cover 6 is the air intake end; the air filter cartridge 17 is fixed to the upper part of the inner cavity of the first protective cover 6, the sealing plate 15 is fixed to the lower outer surface of the air filter cartridge 17, the through hole 16 is opened in the middle of the upper outer surface of the first protective cover 6, and the through hole 16 communicates with the upper part of the inner cavity of the first protective cover 6, the lower end of the backflow pipe 11 extends through the through hole 16 into the interior of the air filter cartridge 17, the backflow nozzle 13 is located inside the air filter cartridge 17, and the backflow nozzle 13 is fixed to the lower outer wall of the backflow pipe 11; the worm gear 14 is fixed to the upper outer wall of the backflow pipe 11, the worm 18 is located on one side of the outer surface of the worm gear 14, the second protective cover 7 is fixed to the middle of the upper outer surface of the first protective cover 6, the motor 8 is fixedly installed on one end of one side of the outer surface of the second protective cover 7, and one side of the outer surface of the worm 18 is connected to one side of the outer surface of the worm gear 14. The surfaces mesh with each other. A sealed bearing is provided between the worm 18 and the second protective cover 7. The worm 18 is rotatably connected to the second protective cover 7 through the bearing. A coupling is provided between the worm 18 and the motor 8. The outer surface of one end of the worm 18 is fixedly connected to the outer surface of one end of the output shaft of the motor 8 through the coupling. The upper end of the backflow pipe 11 extends to the upper outer surface of the second protective cover 7. A sealed bearing is provided between the backflow pipe 11 and the second protective cover 7. The upper part of the backflow pipe 11 is rotatably connected to the second protective cover 7 through the sealed bearing. The upper end of the backflow pipe 11 is connected to an external air supply pump through a pneumatic rotary joint. The suction pump 9 is fixed to one side of the upper outer surface of the second protective cover 7. The suction pipe 12 is connected to the lower outer surface of the suction pump 9. The lower end of the suction pipe 12 extends into one side of the upper part of the inner cavity of the second protective cover 7. The suction pump 9 is connected between one side of the suction pipe 12 and the burner 3.

[0029] It should be noted that this utility model is a high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure. The gas-fired heat treatment furnace 1, temperature control device 2, burner 3, and gas inlet pipe 4 described in this document are all prior art. The temperature control device 2 can control the internal temperature of the gas-fired heat treatment furnace 1, which is readily known to those skilled in the art and will not be elaborated further. The air intake structure 5 has its lower end of the first protective cover 6 as the air intake end. Through the operation of the air pump 9, fresh air from the outside is drawn into the interior of the first protective cover 6 and finally enters the gas-fired heat treatment furnace through the exhaust pipe 10. After a period of use, the air filter cartridge 17 inside the burner 3 needs to be cleaned. First, the external dust collection hopper is placed under the first protective cover 6. The top of the backwash air pipe 11 is connected to an external air pump through a pneumatic rotary joint, so that the backwash nozzle 13 backwashes and cleans the air filter cartridge 17 inside, improving the efficiency and convenience of maintenance. The operation of the motor 8 drives the worm gear 18 to rotate, and the worm gear 18 drives the backwash air pipe 11 to rotate through the worm wheel 14. The backwash air pipe 11 drives the backwash nozzle 13 to rotate and spray air inside the air filter cartridge 17, improving the cleaning effect.

[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure, comprising a gas-fired heat treatment furnace (1), wherein a burner (3) is fixedly installed at the rear end of the gas-fired heat treatment furnace (1), a gas inlet pipe (4) is connected to one side of the burner (3), and a temperature control device (2) is installed on one side of the gas-fired heat treatment furnace (1), characterized in that: The other side of the burner (3) is connected to an air intake structure (5), which includes a first protective cover (6), a second protective cover (7), a motor (8), a vacuum pump (9), an exhaust pipe (10), a backflow pipe (11), an intake pipe (12), a backflow nozzle (13), a worm gear (14), a sealing plate (15), a through hole (16), an air filter cartridge (17), and a worm (18). The first protective cover (6) is fixed to one end of the frame in the gas heat treatment furnace (1).

2. The high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to claim 1, characterized in that: An air intake space is left between the lower end of the first protective cover (6) and the ground, and the lower end of the first protective cover (6) is the air intake end.

3. A high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to claim 2, characterized in that: The air filter cartridge (17) is fixed to the upper part of the inner cavity of the first protective cover (6). The sealing plate (15) is fixed to the lower outer surface of the air filter cartridge (17). The through hole (16) is opened in the middle of the upper outer surface of the first protective cover (6) and the through hole (16) is connected to the upper part of the inner cavity of the first protective cover (6). The lower end of the backflow air pipe (11) extends through the through hole (16) into the interior of the air filter cartridge (17). The backflow nozzle (13) is located inside the air filter cartridge (17) and the backflow nozzle (13) is fixed to the lower outer wall of the backflow air pipe (11).

4. A high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to claim 3, characterized in that: The worm gear (14) is fixed to the outer wall of the upper part of the backflow pipe (11). The worm (18) is located on one side of the outer surface of the worm gear (14). The second protective cover (7) is fixed in the middle of the upper outer surface of the first protective cover (6). The motor (8) is fixedly installed on one end of the outer surface of one side of the second protective cover (7). One side of the outer surface of the worm (18) meshes with one side of the outer surface of the worm gear (14). A sealed bearing is provided between the worm (18) and the second protective cover (7). The worm (18) is rotatably connected to the second protective cover (7) through the bearing. A coupling is provided between the worm (18) and the motor (8). One end of the outer surface of the worm (18) is fixedly connected to one end of the outer surface of the output shaft of the motor (8) through the coupling.

5. A high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to claim 4, characterized in that: The upper end of the backflush pipe (11) extends to the upper outer surface of the second protective cover (7). A sealed bearing is provided between the backflush pipe (11) and the second protective cover (7). The upper part of the backflush pipe (11) is rotatably connected to the second protective cover (7) through the sealed bearing. The upper end of the backflush pipe (11) is connected to an external air supply pump through a pneumatic rotary joint.

6. A high-precision temperature-controlled gas-fired heat treatment furnace with a filtration structure according to claim 5, characterized in that: The suction pump (9) is fixed on one side of the upper outer surface of the second protective cover (7). The suction pipe (12) is connected to the lower outer surface of the suction pump (9), and the lower end of the suction pipe (12) extends into one side of the upper part of the inner cavity of the second protective cover (7). The suction pump (9) is connected between one side of the suction pipe (12) and the burner (3).

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