High-temperature-resistant fan

Abstract

The utility model discloses a kind of high-temperature-resistant fan, including high-temperature-resistant casing, high-temperature-resistant casing includes main shell and shell cover, the side of shell cover is equipped with air inlet, the top of main shell is equipped with air outlet, flange is equipped in interface, impeller assembly is rotatably connected to the inside of main shell, drive assembly is installed to the outside of main shell, heat insulation sealing assembly is between main shell and impeller assembly and drive assembly, the utility model can drive impeller assembly rotation by drive assembly, high-temperature gas enters high-temperature-resistant casing inside by air inlet, is pressurized under the action of impeller assembly and is discharged from air outlet, in the process, heat insulation sealing assembly can prevent high-temperature gas leakage, barrier heat in casing is conducted to drive assembly, guarantee drive assembly normal operation, and then through above structure, it can be stable ventilation under high-temperature environment, while maintenance is convenient, and adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of fan equipment technology, specifically a high-temperature resistant fan. Background Technology

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and transport gas. Essentially, it is a general-purpose fluid machine that converts electrical energy or other forms of energy into gas kinetic energy and pressure energy.

[0003] In high-temperature operating scenarios, fans need to withstand operating temperatures of 150-400℃ for extended periods. Existing fans have significant drawbacks: firstly, the impellers are mostly made of ordinary steel, which is prone to deformation and oxidation at high temperatures, leading to a decrease in airflow and an increase in noise; secondly, the sealing structure between the casing and the impeller has poor heat resistance, and the seals age and fail after long-term use, resulting in air leakage. Therefore, it is necessary to design a high-temperature resistant fan to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant fan to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant fan, comprising a high-temperature resistant casing, an impeller assembly, a drive assembly, and a heat-insulating seal. The high-temperature resistant casing includes a main casing and a cover connected to one side, both made of stainless steel. The cover has an air inlet on one side, and the main casing has an air outlet on the top, with a flange at the outlet. The impeller assembly is rotatably connected to the inner side of the main casing, and the drive assembly is installed on the outer side of the main casing and is drively connected to the impeller assembly. The heat-insulating seal is located between the main casing, the impeller assembly, and the drive assembly.

[0006] Preferably, the impeller assembly includes a hub and blades, the hub and blades are integrally formed of heat-resistant stainless steel, the hub has a shaft hole in the middle and is fixed to the drive shaft by a key connection, and one end of the drive shaft is rotatably connected to the inner wall of one side of the main housing.

[0007] Preferably, the heat insulation and sealing assembly includes a metal sealing ring and a heat insulation plate. The metal sealing ring is provided at the connection between the main housing and the drive shaft. The metal sealing ring is made of copper sheet. A groove is provided on one side of the main housing, and the heat insulation plate is fixedly installed on its inner side by bolts. The heat insulation plate is a glass fiber heat insulation plate. The drive assembly is located on the outside of the heat insulation plate.

[0008] Preferably, the drive assembly includes a drive motor, which is mounted on one side of the heat insulation plate, and its output end is connected to the transmission shaft via a coupling. The bottom of the drive motor is provided with a mounting base.

[0009] Preferably, the drive motor is a single-phase asynchronous high-temperature resistant motor.

[0010] Preferably, the bottom of the mounting base is provided with a mounting plate integrally formed therewith, and the mounting plate has two sets of waist-shaped mounting holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a drive assembly to transmit power to the impeller assembly inside the main housing, causing the impeller assembly to rotate. High-temperature gas enters the high-temperature resistant casing composed of the main housing and the casing cover through the air inlet. Under the action of the impeller assembly, it is pressurized and discharged from the air outlet. During the process, the heat insulation and sealing assembly between the main housing and the impeller assembly can prevent the leakage of high-temperature gas. The heat insulation and sealing assembly between the main housing and the drive assembly can block the heat inside the casing from being conducted to the drive assembly, ensuring the normal operation of the drive assembly. Thus, through the above structure, stable ventilation can be achieved in high-temperature environments, while also being convenient to maintain and highly adaptable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the present invention; Figure 3 This is a side view and a top view of the present invention; Figure 4 This is a side sectional view of the high-temperature resistant casing. Figure 5 This is a side and top view of the high-temperature resistant casing. Figure 6 for Figure 4 Enlarged view of part A in the image.

[0013] In the diagram: 1. Main housing, 2. Housing cover, 3. Air inlet, 4. Air outlet, 5. Flange, 6. Drive shaft, 7. Hub, 8. Blade, 9. Metal sealing ring, 10. Groove, 11. Heat insulation plate, 12. Drive motor, 13. Mounting base, 14. Mounting plate, 15. Waist-shaped mounting hole. Detailed Implementation

[0014] 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.

[0015] Example 1 Please refer to Figure 1-6 As shown, this utility model provides a high-temperature resistant fan, including a high-temperature resistant casing, an impeller assembly, a drive assembly, and a heat-insulating seal. The high-temperature resistant casing includes a main casing 1 and a cover 2 connected to one side, both of which are made of stainless steel. The cover 2 has an air inlet 3 on one side, and the main casing 1 has an air outlet 4 on the top. A flange 5 is provided at the outlet. The impeller assembly is rotatably connected to the inside of the main casing 1. The drive assembly is installed on the outside of the main casing 1 and is connected to the impeller assembly for transmission. The heat-insulating seal is located between the main casing 1, the impeller assembly, and the drive assembly.

[0016] Specifically, when using this high-temperature resistant fan, first connect the fan to the external high-temperature pipeline through the flange 5 of the air outlet 4 at the top of the main casing 1. Align the air inlet 3 on one side of the cover 2 with the source of high-temperature gas. Start the drive assembly installed on the outside of the main casing 1. The drive assembly can transmit power to the impeller assembly inside the main casing 1 and drive the impeller assembly to rotate. The high-temperature gas enters the interior of the high-temperature resistant casing composed of the main casing 1 and the cover 2 through the air inlet 3. Under the action of the impeller assembly, it is pressurized and discharged from the air outlet 4. During the process, the heat insulation and sealing assembly between the main casing 1 and the impeller assembly can prevent the leakage of high-temperature gas. The heat insulation and sealing assembly between the main casing 1 and the drive assembly can block the heat inside the casing from being conducted to the drive assembly, ensuring the normal operation of the drive assembly. If maintenance is required, the internal impeller assembly can be inspected by removing the cover 2. Thus, through the above structure, stable ventilation can be achieved in a high-temperature environment, while maintenance is convenient and highly adaptable.

[0017] The impeller assembly includes a hub 7 and blades 8. The hub 7 and blades 8 are integrally formed from heat-resistant stainless steel. The hub 7 has a shaft hole in the middle and is fixed to the drive shaft 6 by a key connection. One end of the drive shaft 6 is rotatably connected to the inner wall of one side of the main housing 1. The impeller assembly can improve its high-temperature resistance through the integrally formed structure of heat-resistant stainless steel. It can maintain structural stability at high temperatures to ensure ventilation efficiency, reduce corrosion and wear of the components at high temperatures, and extend its service life.

[0018] The heat insulation and sealing assembly includes a metal sealing ring 9 and a heat insulation plate 11. A metal sealing ring 9, made of copper sheet, is provided at the connection between the main housing 1 and the drive shaft 6. A groove 10 is provided on one side of the main housing 1, and a heat insulation plate 11, made of fiberglass, is fixedly installed on its inner side by bolts. The drive assembly is located outside the heat insulation plate 11. During use, the metal sealing ring 9 at the connection between the main housing 1 and the drive shaft 6 tightly fits the gap between them. As the drive shaft 6 drives the impeller assembly to rotate, it can block high-temperature gas inside the main housing 1. Leakage from the connection gap ensures efficient exhaust of gas from the air outlet 4. Meanwhile, the heat insulation plate 11, which is fixed with bolts in the groove 10 on one side of the main housing 1, can separate the drive component installed on its outside from the main housing 1, preventing the high temperature inside the main housing 1 from being conducted to the drive component, thus avoiding damage to the drive component due to the high temperature environment. This ensures that the drive component continuously and stably provides power to the drive shaft 6, thereby driving the hub 7 and blades 8 to rotate and achieve ventilation. Thus, by setting up this system, the ventilation efficiency of the fan can be improved, the service life of the drive component can be extended, and it can meet the needs of high-temperature operation scenarios.

[0019] The drive assembly includes a drive motor 12, which is mounted on one side of the heat insulation plate 11. Its output end is connected to the transmission shaft 6 via a coupling. A mounting base 13 is provided at the bottom of the drive motor 12. The drive motor 12 is a single-phase asynchronous high-temperature resistant motor. An integrally formed mounting plate 14 is provided at the bottom of the mounting base 13. Two sets of oblong mounting holes 15 are provided on the mounting plate 14. In use, the drive motor 12 is first fixed in a suitable position through the two sets of oblong mounting holes 15 on the mounting plate 14. After starting the drive motor 12, its output end can be connected to the transmission shaft 6 via the coupling. Power is transmitted to the drive shaft 6, which in turn drives the drive shaft 6 and the connected impeller assembly to rotate, thus conveying high-temperature gas. During this process, the heat insulation plate 11 can prevent the high temperature inside the main housing 1 from being conducted to the drive motor 12. Combined with the high temperature resistance of the drive motor 12 itself, it can ensure stable operation. At the same time, the waist-shaped mounting hole 15 can flexibly adjust the position of the drive motor 12 during installation, ensuring precise docking between the coupling and the drive shaft 6. Thus, through this design, reliable transmission can be provided to the impeller assembly, while avoiding damage to the motor due to high temperature, thereby improving the overall operational stability and ease of installation of the fan.

[0020] Working principle: First, the fan is connected to the external high-temperature pipeline through the flange 5 of the air outlet 4 at the top of the main housing 1, so that the air inlet 3 on one side of the cover 2 is aligned with the source of high-temperature gas. Then, the drive motor 12, which uses a single-phase asynchronous high-temperature resistant motor, is fixed in a suitable position through the two sets of waist-shaped mounting holes 15 on the mounting plate 14. Then, the drive motor 12 is started, and it can transmit power to the transmission shaft 6 through the coupling, which drives the impeller assembly to rotate inside the main housing 1. The high-temperature gas enters the high-temperature resistant gas duct composed of the main housing 1 and the cover 2 through the air inlet 3. Inside the casing, the gas is pressurized by the rotating blades 8 and then discharged from the outlet 4. During the process, the metal sealing ring 9 can prevent the high-temperature gas from leaking from the connection gap between the drive shaft 6 and the main casing 1. The heat insulation plate 11 can prevent the high temperature inside the main casing 1 from being conducted to the drive motor 12. If maintenance is required, the casing cover 2 can be removed to inspect the internal impeller assembly. After completing a single high-temperature gas delivery operation, the drive motor 12 is turned off. After the equipment cools down, the impurities inside the casing and on the surface of the impeller assembly are cleaned for the next use, thus completing the entire operation process.

[0021] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-temperature resistant fan, comprising a high-temperature resistant casing, an impeller assembly, a drive assembly, and a heat insulation and sealing assembly, characterized in that: The high-temperature resistant housing includes a main housing (1) and a cover (2) connected to one side, both of which are made of stainless steel. The cover (2) has an air inlet (3) on one side and an air outlet (4) on the top of the main housing (1). A flange (5) is provided at the outlet. The impeller assembly is rotatably connected to the inside of the main housing (1). The drive assembly is installed on the outside of the main housing (1) and is connected to the impeller assembly in a driving manner. The heat insulation and sealing assembly is located between the main housing (1), the impeller assembly, and the drive assembly. The heat insulation and sealing assembly includes a metal sealing ring (9) and a heat insulation plate (11). The metal sealing ring (9) is provided at the connection between the main housing (1) and the drive shaft (6). The metal sealing ring (9) is made of copper sheet. A groove (10) is provided on one side of the main housing (1). The heat insulation plate (11) is fixedly installed on its inner side by bolts. The heat insulation plate (11) is a glass fiber heat insulation plate. The drive assembly is located on the outside of the heat insulation plate (11).

2. The high-temperature resistant fan according to claim 1, characterized in that: The impeller assembly includes a hub (7) and blades (8). The hub (7) and blades (8) are integrally formed from heat-resistant stainless steel. The hub (7) has a shaft hole in the middle and is fixed to the drive shaft (6) by a key connection. One end of the drive shaft (6) is rotatably connected to the inner wall of one side of the main housing (1).

3. A high-temperature resistant fan according to claim 2, characterized in that: The drive assembly includes a drive motor (12), which is mounted on one side of the heat insulation plate (11). Its output end is connected to the transmission shaft (6) via a coupling. The bottom of the drive motor (12) is provided with a mounting base (13).

4. A high-temperature resistant fan according to claim 3, characterized in that: The drive motor (12) is a single-phase asynchronous high-temperature resistant motor.

5. A high-temperature resistant fan according to claim 3, characterized in that: The bottom of the mounting base (13) is provided with an integrally formed mounting plate (14), and the mounting plate (14) is provided with two sets of waist-shaped mounting holes (15).

Images