Nitrogen sealing protection mechanism for heat treatment furnace

Abstract

This utility model relates to the field of heat treatment furnaces, and more particularly to a nitrogen sealing protection mechanism for heat treatment furnaces, including a connecting flange; it also includes a connecting pipe, support rods, a mounting plate, bearings, a rotating shaft, an impeller, a rotation sensor, a mounting base, a controller, and an audible and visual alarm. A connecting pipe is provided on the front side of the connecting flange, and one end of four circumferentially distributed support rods is installed on the front position of the inner surface of the connecting pipe. The other end of the support rods is provided with a mounting plate, and a bearing is installed at the center position of the rear surface of the mounting plate. By setting up an impeller, when nitrogen leaks inside the heat treatment furnace, the leaking nitrogen will blow the impeller, causing the impeller to drive the rotating shaft to rotate with the cooperation of the bearings. This movement can be detected by the rotation sensor, which then transmits a signal to the controller, causing the audible and visual alarm to sound, thereby alerting the staff that nitrogen is leaking inside the heat treatment furnace.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnaces, and in particular to a nitrogen sealing protection mechanism for heat treatment furnaces. Background Technology

[0002] A magnetic core heat treatment furnace is an industrial device specifically designed for heat treatment of magnetic materials. During operation, nitrogen is introduced into the furnace primarily to create a controllable oxygen-free or low-oxygen environment, thereby preventing oxidation, decarburization, or other harmful chemical reactions of the materials at high temperatures.

[0003] Existing heat treatment furnaces typically monitor for nitrogen leaks by placing a water bottle at the outlet and connecting the outlet to the water bottle with a high-temperature pipe. They observe whether bubbles emerge from the water bottle to confirm whether there is a leak inside the furnace. However, this method fails to issue an alarm in a timely manner when a leak occurs.

[0004] Therefore, in response to the problem that existing heat treatment furnaces cannot issue timely alarms when nitrogen leaks are detected, there is an urgent need to design a new type of nitrogen sealing protection mechanism for heat treatment furnaces. Utility Model Content

[0005] To overcome the problem that existing heat treatment furnaces cannot issue timely alarms when nitrogen leaks are detected.

[0006] The technical solution of this utility model is as follows: a nitrogen sealing protection mechanism for a heat treatment furnace, including a connecting flange; it also includes a connecting pipe, support rods, a mounting plate, a bearing, a rotating shaft, an impeller, a rotation sensor, a mounting base, a controller, and an audible and visual alarm. A connecting pipe is provided on the front side of the connecting flange. One end of four circumferentially distributed support rods is installed on the front position of the inner surface of the connecting pipe. The other end of the support rods is provided with a mounting plate. A bearing is installed at the center position of the rear surface of the mounting plate. The inner ring surface of the bearing is connected to the rotating shaft. The rear end of the rotating shaft is rotatably connected to the impeller. A rotation sensor is installed on the outer surface of the rotating shaft near the bearing. A mounting base is provided on the upper side of the outer surface of the connecting pipe. A controller is provided on the rear position of the right side surface of the mounting base. An audible and visual alarm is provided on the rear position of the upper surface of the mounting base.

[0007] Preferably, by setting an impeller, when nitrogen leaks inside the heat treatment furnace, the leaking nitrogen will blow the impeller, causing the impeller to drive the shaft to rotate with the cooperation of the bearings. This movement can be monitored by a rotation sensor of model FS20, which then transmits a signal to the controller, triggering an audible and visual alarm to alert the staff that nitrogen is leaking inside the heat treatment furnace. This solves the problem that existing heat treatment furnaces, when monitoring for nitrogen leaks, typically place a water bottle at the outlet and connect the outlet to the water bottle with a high-temperature pipe to observe whether bubbles emerge from the bottle to confirm whether there is a leak inside the furnace, but cannot issue an alarm in time when a leak occurs.

[0008] Preferably, a driven gear ring is rotatably connected to the lower part of the outer surface of the audible and visual alarm. A mounting bracket is provided on the upper surface of the driven gear ring, and a sponge is provided on the inner surface of the mounting bracket.

[0009] Preferably, a mounting plate is installed on the upper surface of the mounting base in front of the audible and visual alarm. An L-shaped plate is provided on the upper surface of the mounting plate, and a drive motor is installed on the top of the inner surface of the L-shaped plate. The output end of the drive motor is connected to a drive gear, which meshes with a driven gear ring.

[0010] Preferably, a support plate is provided on the upper surface of the mounting base corresponding to the position of the drive gear, and the upper surface of the support plate is connected to the bottom surface of the drive gear through a drive shaft.

[0011] Preferably, fixing bolts are provided at the corners of the upper surface of the fixing plate, and the fixing plate is fixed to the mounting base by the fixing bolts.

[0012] Preferably, a battery is embedded in the front part of the right side surface of the mounting base, and a cover plate is provided on the right side surface of the mounting base corresponding to the position of the battery. A positioning screw is installed at the corner of the right side surface of the cover plate, and the cover plate is fixed to the mounting base by the positioning screw.

[0013] Preferably, the connecting pipes, supports, and mounting plates are fixed by welding.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up an impeller, when nitrogen leaks inside the heat treatment furnace, the flowing gas can drive the impeller and shaft to rotate. The rotation sensor can monitor the rotation of the shaft and then send a signal to the controller, causing the audible and visual alarm to sound, thereby alerting the staff that nitrogen is leaking inside the heat treatment furnace. This solves the problem that existing heat treatment furnaces, when monitoring nitrogen leaks, usually place a water bottle at the outlet and connect the outlet to the water bottle with a high-temperature pipe to observe whether bubbles emerge from the water bottle to confirm whether there is a leak inside the furnace, but cannot issue an alarm in time when a leak occurs. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the nitrogen sealing protection mechanism of the heat treatment furnace of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the impeller of the nitrogen sealing protection mechanism of the heat treatment furnace of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the audible and visual alarm device of the nitrogen sealing protection mechanism of the heat treatment furnace of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the drive motor of the nitrogen sealing protection mechanism of the heat treatment furnace of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Connecting flange; 2. Connecting pipe; 3. Support rod; 4. Mounting plate; 5. Bearing; 6. Rotating shaft; 7. Impeller; 8. Rotation sensor; 9. Mounting base; 10. Controller; 11. Audible and visual alarm; 12. Driven gear ring; 13. Mounting bracket; 14. Sponge; 15. Fixing plate; 16. L-shaped plate; 17. Drive motor; 18. Drive gear; 19. Support plate; 20. Fixing bolt; 21. Battery; 22. Cover plate; 23. Positioning screw. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of a nitrogen sealing protection mechanism for a heat treatment furnace, including a connecting flange 1; it also includes a connecting pipe 2, support rods 3, a mounting plate 4, a bearing 5, a rotating shaft 6, an impeller 7, a rotation sensor 8, a mounting base 9, a controller 10, and an audible and visual alarm 11. A connecting pipe 2 is provided on the front side of the connecting flange 1. Four circumferentially distributed support rods 3 are mounted at one end of their inner surface near the front. The other end of the support rods 3 is provided with a mounting plate 4. A bearing 5 is mounted at the center of the rear surface of the mounting plate 4. A rotating shaft 6 is connected to the inner ring surface of the bearing 5. An impeller 7 is rotatably connected to the rear end of the rotating shaft 6. A rotation sensor 8 is installed on the outer surface of the furnace near the bearing 5. A mounting base 9 is provided on the upper part of the outer surface of the connecting pipe 2. A controller 10 is provided on the rear right side surface of the mounting base 9. An audible and visual alarm 11 is provided on the rear upper surface of the mounting base 9. By setting the impeller 7, when nitrogen leaks inside the heat treatment furnace, the leaked nitrogen will blow the impeller 7, causing the impeller 7 to drive the rotating shaft 6 to rotate with the bearing 5. This movement can be monitored by the rotation sensor 8, which then transmits a signal to the controller 10, causing the audible and visual alarm 11 to sound an alarm, thereby reminding the staff that nitrogen is leaking inside the heat treatment furnace.

[0023] Please see Figures 1-4In this embodiment, a driven gear ring 12 is rotatably connected to the lower part of the outer surface of the audible and visual alarm 11. A mounting bracket 13 is provided on the upper surface of the driven gear ring 12, and a sponge 14 is provided on the inner surface of the mounting bracket 13. By providing the driven gear ring 12, the mounting bracket 13 can be rotated when rotated, so that the sponge 14 can wipe the dust on the outer surface of the audible and visual alarm 11, thereby preventing dust from blocking the light transmission. A fixing plate 15 is installed on the upper surface of the mounting base 9 in front of the audible and visual alarm 11. An L-shaped plate 16 is provided on the upper surface of the fixing plate 15, and a drive motor 17 is installed on the top of the inner surface of the L-shaped plate 16 to drive the light. The output end of the motor 17 is connected to the drive gear 18, which meshes with the driven gear ring 12. By setting the drive motor 17, its output end will drive the drive gear 18 to rotate during operation. When the drive gear 18 rotates, it can drive the driven gear ring 12 that it meshes with to rotate, so that the sponge 14 can automatically clean the outer surface of the sound and light alarm 11. The upper surface of the mounting base 9 is provided with a support plate 19 corresponding to the position of the drive gear 18. The upper surface of the support plate 19 is connected to the bottom surface of the drive gear 18 through a transmission shaft. By setting the support plate 19, the bottom of the drive gear 18 can be supported to prevent the teeth from coming off.

[0024] Please see Figures 1-4 In this embodiment, fixing bolts 20 are provided at the corners of the upper surface of the fixing plate 15. The fixing plate 15 is fixed to the mounting base 9 by the fixing bolts 20. By setting the fixing bolts 20, the connection strength between the fixing plate 15 and the mounting base 9 can be strengthened to prevent loosening. A storage battery 21 is embedded in the front position of the right side surface of the mounting base 9. A cover plate 22 is provided on the right side surface of the mounting base 9 corresponding to the position of the storage battery 21. A positioning screw 23 is installed at the corner of the right side surface of the cover plate 22. The cover plate 22 is fixed to the mounting base 9 by the positioning screw 23. By setting the storage battery 21, power can be provided for the operation of the device. The connecting pipe 2, the support rod 3 and the mounting plate 4 are fixed by welding. By fixing the connecting pipe 2, the support rod 3 and the mounting plate 4 by welding, the overall strength of the structure can be improved and breakage can be prevented.

[0025] During operation, the driven gear ring 12 rotates, driving the mounting bracket 13 to rotate, allowing the sponge 14 to wipe the dust off the outer surface of the audible and visual alarm 11, thus preventing dust from blocking light transmission. The drive motor 17 drives the drive gear 18 to rotate during operation, which in turn drives the driven gear ring 12 to rotate, allowing the sponge 14 to automatically clean the outer surface of the audible and visual alarm 11. The support plate 19 provides support for the bottom of the drive gear 18, preventing it from coming loose. The fixing bolts 20 strengthen the connection between the fixing plate 15 and the mounting base 9, preventing loosening. The battery 21 provides power for the device's operation. Welding the connecting pipe 2, support rod 3, and mounting plate 4 improves the overall structural strength and prevents breakage.

[0026] Through the above steps, by setting impeller 7, when nitrogen leaks inside the heat treatment furnace, the flowing gas can drive impeller 7 and shaft 6 to rotate. Rotation sensor 8 can monitor the rotation of shaft 6 and then transmit a signal to controller 10, causing audible and visual alarm 11 to sound an alarm, thereby reminding staff that nitrogen is leaking inside the heat treatment furnace. This solves the problem that existing heat treatment furnaces, when monitoring nitrogen leaks, usually place a water bottle at the outlet and connect the outlet to the water bottle with a high-temperature pipe to observe whether bubbles emerge from the water bottle to confirm whether there is a leak inside the furnace, but cannot issue an alarm in time when a leak occurs.

Claims

1. A nitrogen sealing protection mechanism of a heat treatment furnace, comprising a connecting flange (1); characterized in that: It also includes a connecting pipe (2), a support rod (3), a mounting plate (4), a bearing (5), a rotating shaft (6), an impeller (7), a rotation sensor (8), a mounting base (9), a controller (10), and an audible and visual alarm (11). The connecting pipe (2) is provided on the front side of the connecting flange (1). One end of four circumferentially distributed support rods (3) is installed on the front side of the inner surface of the connecting pipe (2). The other end of the support rods (3) is provided with a mounting plate (4). The bearing (5) is installed at the center of the rear side surface of the mounting plate (4). The rotating shaft (6) is connected to the inner ring surface of the bearing (5). The impeller (7) is rotatably connected to the rear end of the rotating shaft (6). The rotation sensor (8) is installed on the outer surface of the rotating shaft (6) near the bearing (5). The mounting base (9) is provided on the upper side of the outer surface of the connecting pipe (2). The controller (10) is provided on the rear side of the right side surface of the mounting base (9). The audible and visual alarm (11) is provided on the rear side of the upper surface of the mounting base (9).

2. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 1, characterized in that: The outer surface of the audible and visual alarm (11) is rotatably connected to a driven gear ring (12) at a lower position. The upper surface of the driven gear ring (12) is provided with a mounting bracket (13), and the inner surface of the mounting bracket (13) is provided with a sponge (14).

3. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 2, characterized in that: The upper surface of the mounting base (9) is located in front of the sound and light alarm (11) and a fixing plate (15) is installed. An L-shaped plate (16) is provided on the upper surface of the fixing plate (15). A drive motor (17) is installed on the top of the inner surface of the L-shaped plate (16). The output end of the drive motor (17) is connected to a drive gear (18). The drive gear (18) meshes with the driven gear ring (12).

4. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 3, characterized in that: The upper surface of the mounting base (9) is provided with a support plate (19) corresponding to the position of the drive gear (18). The upper surface of the support plate (19) is connected to the bottom surface of the drive gear (18) through a transmission shaft.

5. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 3, characterized in that: Fixing bolts (20) are provided at the corners of the upper surface of the fixing plate (15), and the fixing plate (15) is fixed to the mounting base (9) by the fixing bolts (20).

6. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 1, characterized in that: A battery (21) is embedded in the front position of the right side surface of the mounting base (9). A cover plate (22) is provided on the right side surface of the mounting base (9) corresponding to the position of the battery (21). A positioning screw (23) is installed at the corner of the right side surface of the cover plate (22). The cover plate (22) is fixed to the mounting base (9) by the positioning screw (23).

7. The nitrogen sealing protection mechanism for the heat treatment furnace according to claim 1, characterized in that: The connecting pipe (2), the support rod (3), and the mounting plate (4) are fixed by welding.

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