High-temperature fan capable of stably exhausting air

Abstract

The high-temperature fan comprises a base and a cooling assembly, a bearing box is arranged at one end of the top of the base, a motor is fixed to one side of the bearing box, a driving shaft is connected to one end of the motor, and a sealing assembly is arranged on the outer side of one end of the driving shaft; the upper portion of the sealing assembly is connected with a driving assembly. In the working process of the high-temperature fan, the sealing performance between the driving shaft and the sealing sleeve can be improved through a labyrinth channel formed by the graphite ring and the sealing groove, meanwhile, the graphite ring can reduce friction loss through the self-lubricating performance of graphite, and when the driving shaft rotates, the driving assembly can be driven to work, so that the service life of the driving assembly is prolonged. The lifting plate can drive the first piston rod to move up and down in the fixing cylinder in a reciprocating mode, and when the first piston rod moves upwards, due to the fact that negative pressure is formed in one end of the fixing cylinder, external cooling liquid can be sucked into the end of the fixing cylinder through the first one-way valve and the liquid suction pipe.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-temperature fans, in particular to a high-temperature fan capable of stably drawing air. BACKGROUND

[0002] The high-temperature fan belongs to a special fan and is mainly used for high-temperature operation. The material has strong high-temperature resistance and high-pressure resistance. The use temperature is generally between 100 DEG C and 180 DEG C. The high-temperature fan is widely used in the boiler industry and the drying industry. The high-temperature fan belongs to a special fan and is specially used for high-temperature operation.

[0003] For example, the application with the publication number CN115653918B discloses a high-temperature-resistant explosion-proof fan. When the base is placed, the level gauge is observed. If the fan shell is not in a horizontal state, the hand lever is rotated to drive the rotating gear to rotate, thereby driving the adjusting gear to rotate, so that the threaded rod moves up and down, and the fan shell is adjusted. When another adjusting gear needs to be adjusted, the pull ring is pulled outward, the lock rod is driven to move away from the T-shaped slide rail by the anti-dropping cap, the sliding block is unlocked, the sliding block is pushed in the direction of the other adjusting gear, and after being pushed to the appropriate position, the pull ring is loosened. Under the action of the locking spring, the lock rod moves in the direction of the T-shaped slide rail and is inserted into the jack, so that the sliding block is locked. By rotating the multiple adjusting gears, the fan shell is adjusted to the horizontal state by cooperating with the level gauge. The application is convenient and practical. However, the sealing element at the shell connecting position of the high-temperature fan is prone to accelerated aging due to high temperature in the actual use process, which affects the stability of the fan during air drawing due to the reduced sealing property of the high-temperature fan.

[0004] Therefore, in view of the above problems, the existing structure and defects are improved, and a high-temperature fan capable of stably drawing air is provided. SUMMARY

[0005] The application aims to provide a high-temperature fan capable of stably drawing air to solve the problems in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A stable high-temperature fan of air extraction, comprising a base and a cooling assembly, one end of the top of the base is provided with a bearing box, one side of the bearing box is fixedly provided with a motor, one end of the motor is connected with a driving shaft, one end of the outer side of the driving shaft is provided with a sealing assembly, the upper part of the sealing assembly is connected with a driving assembly, the cooling assembly is arranged at one end of the driving assembly, the cooling assembly comprises a fixed cylinder, a first piston rod, a first check valve, a liquid suction pipe, a second check valve, a heat exchange cavity, a spiral piece and a liquid discharge pipe, the upper part of the sealing assembly is connected with the fixed cylinder, the inside of one end of the fixed cylinder is slidably connected with the first piston rod, the front part of the fixed cylinder is provided with the first check valve, the front end of the first check valve is connected with the liquid suction pipe, one end of the bottom of the fixed cylinder is provided with the second check valve, the inside of the outer end of the sealing assembly is provided with the heat exchange cavity, the inside of the heat exchange cavity is provided with the spiral piece, and one end of the bottom of the heat exchange cavity is fixedly provided with the liquid discharge pipe.

[0007] Further, one end of the driving shaft is connected with a heat insulation pad, one side of the heat insulation pad is provided with an impeller, the outer side of the impeller is provided with a volute, and the volute is fixedly connected with the base.

[0008] Further, the sealing assembly comprises a bushing, a graphite ring, a sealing sleeve and a sealing groove, one end of the outer side of the driving shaft is provided with the bushing, the outer side of the bushing is fixedly provided with the graphite ring at equal intervals, one side of the volute is provided with the sealing sleeve, the inside of the sealing sleeve is provided with the sealing groove, and the sealing sleeve is slidably connected with the graphite ring.

[0009] Further, the driving assembly comprises a central gear, a planetary gear and a gear ring, the middle part of the outer side of the driving shaft is fixedly provided with the central gear, the outer side of the central gear is engaged with the planetary gear, the planetary gear is rotatably connected with the bearing box, and the outer side of the planetary gear is engaged with the gear ring.

[0010] Further, the driving assembly further comprises a limiting frame, a limiting ring and a pulley, the outer side of the gear ring is rotatably connected with the limiting frame, the limiting frame is fixedly connected with the bearing box, one end of the inside of the gear ring is provided with the limiting ring, and the inside of the limiting ring is provided with the pulley.

[0011] Further, the driving assembly further comprises a lifting plate, a fixed rod and a return spring, one end of the pulley is rotatably connected with the lifting plate, the lifting plate is fixedly connected with the first piston rod, the inside of one end of the lifting plate is slidably connected with the fixed rod, the fixed rod is fixedly connected with the limiting frame, and the outside of the lower end of the fixed rod is sleeved with the return spring.

[0012] Further, the bottom end of the lifting plate is connected with a pressure stabilizing assembly, the pressure stabilizing assembly comprises a second piston rod, a third one-way valve and a fourth one-way valve, the bottom end of the lifting plate is arranged with the second piston rod, and the second piston rod is in sliding connection with a fixed cylinder, the front end of the fixed cylinder is arranged with the third one-way valve, and the bottom of the fixed cylinder is fixed with the fourth one-way valve, and the fourth one-way valve is in communication with the inside of a sealing groove.

[0013] Further, the pressure stabilizing assembly further comprises a fixing sleeve, a sealing ring, a sealing plug, a guide rod, a compression spring and an adjusting frame, the lower end of the sealing sleeve is fixed with the fixing sleeve, the inside upper end of the fixing sleeve is arranged with the sealing ring, the bottom of the sealing ring is provided with the sealing plug, the bottom of the sealing plug is connected with the guide rod, the outside of the guide rod is sleeved with the compression spring, the bottom of the compression spring is connected with the adjusting frame, and the adjusting frame is in sliding connection with the guide rod.

[0014] Further, the lower end of the adjusting frame is connected with a fine adjustment assembly, the fine adjustment assembly comprises a screw rod, a limiting rod, a convex strip and an anti-skid sleeve, the inside lower end of the adjusting frame is threadedly connected with the screw rod, the screw rod is in rotational connection with the fixing sleeve, the bottom of the screw rod is fixed with the limiting rod, the outside of the limiting rod is equidistantly provided with the convex strip, and the outside of the convex strip is in sliding connection with the anti-skid sleeve.

[0015] Further, the fine adjustment assembly further comprises a magnetic tooth ring, a pointer and a scale, the top of the anti-skid sleeve is provided with the magnetic tooth ring, the magnetic tooth ring is fixedly connected with the fixing sleeve, the two sides of the adjusting frame are arranged with the pointer, one side of the pointer is in sliding connection with the scale, and the scale is fixedly connected with the fixing sleeve.

[0016] The application provides a high-temperature fan capable of stabilizing air suction. 1、In the working process of the high-temperature fan, the labyrinth channel formed by the graphite ring and the sealing groove can improve the sealing performance between the driving shaft and the sealing sleeve, meanwhile, the graphite ring can reduce the friction loss by using the self-lubricating performance of graphite, and when the driving shaft rotates, the driving assembly also works, the lifting plate drives the first piston rod to reciprocatingly move up and down in the fixed cylinder, when the first piston rod moves up, the negative pressure is formed in the inside of one end of the fixed cylinder, so that the external cooling liquid is sucked into the inside of one end of the fixed cylinder through the first one-way valve and the liquid suction pipe, when the lifting plate moves down, the cooling liquid flows into the heat exchange cavity through the second one-way valve, so as to cool the whole sealing sleeve, thereby enhancing the stability of the sealing part, enabling the fan to stably perform air suction operation, and using the spiral blade to guide the cooling liquid, so that the cooling liquid after heat exchange and temperature rise can be discharged in time through the liquid discharge pipe for recycling, avoiding the influence of the accumulated hot liquid on the effect of overall cooling.

[0017] 2、The application can also drive the gear ring to rotate through the center gear and the planetary gear when the driving shaft drives the impeller to rotate, at this time the limiting frame can limit and support the gear ring, so that the limiting ring can rotate, at this time, the center gear, the planetary gear and the gear ring form a speed reduction structure, which can provide greater driving force and can also avoid excessive load on the driving shaft, then the limiting ring will push the pulley, so that the lifting plate moves down along the fixed rod, and when the pulley moves to the recess of the limiting ring, the return spring will push the lifting plate under the limiting of the fixed rod, so that it moves up to reset, so that in the use process, the lifting plate can reciprocatingly move up and down without adding an additional power source, so that the cooling assembly and the pressure stabilizing assembly can automatically work, and the overall linkage is stronger.

[0018] 3、The lifting plate can also drive the second piston rod to move up, so that the external gas can enter the other end of the fixed cylinder through the third one-way valve, and when the lifting plate moves down, the air in the fixed cylinder can enter the sealing groove in the middle of the sealing sleeve through the fourth one-way valve, at the same time, the compression spring can push the sealing plug under the limiting of the guide rod and the adjusting frame, so that it is attached to the sealing ring, so that the air pressure in the middle of the sealing groove is increased and is the same as the pressure in the volute, so that the certain pressure can be used to reduce the tendency of the gas in the volute to pass through the labyrinth channel, and when the air pressure in the middle of the sealing groove is too high during the reciprocating movement of the second piston rod, the gas can push the sealing plug, and the compression spring can be compressed, at this time, the sealing plug and the sealing ring are separated, so that the air pressure can be automatically controlled, so that when a small part of the gas leaks from the right end of the sealing sleeve, the air pressure in the middle of the sealing groove can be maintained within a certain range, which is beneficial to improve the stability of the sealing.

[0019] 4、When the impeller works at different speeds according to the use requirements, the internal pressure of the volute can be different, at this time, the screw can also be rotated according to the requirements, so that the height of the adjusting frame can be controlled to control the compression amount of the spring, so that the pressure in the middle of the sealing groove and the pressure in the volute can be balanced, at the same time, the adjusting frame can also drive the pointer to move on the scale, so that the adjustment is more accurate, and before adjustment, the anti-skid sleeve is first pulled down to separate from the magnetic tooth ring, at this time, rotating the anti-skid sleeve can drive the screw to rotate through the convex strip, and after adjustment, the magnetic tooth ring can attract the iron anti-skid sleeve, and the tooth part can limit it, so that the stability after adjustment is not affected by the reciprocating vibration of the compression spring, which is beneficial to enhance the stability of the high-temperature fan in use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole front view of the high-temperature fan for stable air extraction; Figure 2 It is a three-dimensional structure diagram of the impeller of the high-temperature fan for stable air extraction; Figure 3 This is a right-side perspective three-dimensional structural diagram of the drive assembly of a high-temperature fan for stable air extraction according to the present invention. Figure 4 This is a schematic diagram of the sealing assembly structure of a high-temperature fan for stable air extraction according to the present invention; Figure 5 This is a left-side perspective three-dimensional structural diagram of the drive assembly of a high-temperature fan for stable air extraction according to the present invention; Figure 6 This is a three-dimensional structural diagram of the lifting plate of a high-temperature fan for stable air extraction according to the present invention. Figure 7 This is a three-dimensional structural diagram of a voltage stabilizing component for a high-temperature fan that provides stable air extraction, according to the present invention.

[0021] In the diagram: 1. Base; 2. Bearing housing; 3. Motor; 4. Drive shaft; 5. Heat insulation pad; 6. Impeller; 7. Volute; 8. Sealing assembly; 801. Bushing; 802. Graphite ring; 803. Sealing sleeve; 804. Sealing groove; 9. Drive assembly; 901. Central gear; 902. Planetary gear; 903. Gear ring; 904. Limiting frame; 905. Limiting ring; 906. Pulley; 907. Lifting plate; 908. Fixed rod; 909. Return spring; 10. Cooling assembly; 1001. Fixed cylinder; 1002. First piston rod; 1003. First one-way valve; 1004. Liquid suction. 1005. Pipe; 1006. Second check valve; 1007. Heat exchange chamber; 1008. Spiral blade; 1009. Drain pipe; 10000. Pressure stabilizing assembly; 11001. Second piston rod; 1102. Third check valve; 1103. Fourth check valve; 1104. Fixing sleeve; 1105. Sealing ring; 1106. Sealing plug; 1107. Guide rod; 1108. Compression spring; 1109. Adjusting frame; 12. Fine-tuning assembly; 1201. Screw; 1202. Limiting rod; 1203. Raised strip; 1204. Anti-slip sleeve; 1205. Magnetic toothed ring; 1206. Pointer; 1207. Ruler. Detailed Implementation

[0022] Please see Figures 1 to 7The present invention provides a technical solution: a high-temperature fan for stable exhaust, comprising a base 1 and a cooling component 10. A bearing housing 2 is mounted on one end of the top of the base 1, and a motor 3 is fixed on one side of the bearing housing 2. One end of the motor 3 is connected to a drive shaft 4. A sealing component 8 is provided on the outer side of one end of the drive shaft 4, and a drive component 9 is connected to the upper part of the sealing component 8. The cooling component 10 is disposed at one end of the drive component 9. The cooling component 10 includes a fixed cylinder 1001, a first piston rod 1002, a first one-way valve 1003, a liquid suction pipe 1004, a second one-way valve 1005, a heat exchange chamber 1006, and a spiral... The sealing assembly 8 has a sealing plate 1007 and a drain pipe 1008. The upper part of the sealing assembly 8 is connected to a fixed cylinder 1001, and a first piston rod 1002 is slidably connected inside one end of the fixed cylinder 1001. A first one-way valve 1003 is provided at the front of the fixed cylinder 1001, and a suction pipe 1004 is connected to the front end of the first one-way valve 1003. A second one-way valve 1005 is installed at one bottom end of the fixed cylinder 1001. A heat exchange chamber 1006 is opened inside the outer end of the sealing assembly 8, and a spiral plate 1007 is installed inside the heat exchange chamber 1006. A drain pipe 1008 is fixed at the bottom of one end of the heat exchange chamber 1006.

[0023] Please see Figures 1 to 6 One end of the drive shaft 4 is connected to a heat insulation pad 5, and an impeller 6 is provided on one side of the heat insulation pad 5. A volute 7 is provided on the outer side of the impeller 6, and the volute 7 is fixedly connected to the base 1. The sealing assembly 8 includes a bushing 801, a graphite ring 802, a sealing sleeve 803, and a sealing groove 804. A bushing 801 is placed on the outer side of one end of the drive shaft 4, and graphite rings 802 are fixed at equal intervals on the outer side of the bushing 801. A sealing sleeve 803 is placed on one side of the volute 7, and a sealing groove 804 is opened on the inner side of the sealing sleeve 803. The sealing sleeve 803 is slidably connected to the graphite ring 802. The drive assembly 9 includes a central gear 901, a planetary gear 902, and a gear ring 903. A central gear 901 is fixed on the outer side of the middle part of the drive shaft 4, and a planetary gear 902 meshes with the outer side of the central gear 901. The planetary gear 902 is connected to the bearing. The gearbox 2 is rotatably connected, and the outer side of the planetary gear 902 is meshed with the gear ring 903. The drive assembly 9 also includes a limit frame 904, a limit ring 905, and a pulley 906. The outer side of the gear ring 903 is rotatably connected to the limit frame 904, and the limit frame 904 is fixedly connected to the bearing box 2. The limit ring 905 is installed inside one end of the gear ring 903, and the pulley 906 is provided on the inner side of the limit ring 905. The drive assembly 9 also includes a lifting plate 907, a fixed rod 908, and a return spring 909. The lifting plate 907 is rotatably connected to one end of the pulley 906, and the lifting plate 907 is fixedly connected to the first piston rod 1002. The fixed rod 908 is slidably connected to one end of the lifting plate 907, and the fixed rod 908 is fixedly connected to the limit frame 904. The return spring 909 is sleeved on the outer side of the lower end of the fixed rod 908. The specific operation is as follows: the bearing housing 2 provides limiting support for the drive shaft 4, and the motor 3 drives the impeller 6 to rotate inside the volute 7 via the drive shaft 4. At this time, the labyrinth channel formed by the graphite ring 802 and the sealing groove 804 improves the sealing performance between the drive shaft 4 and the sealing sleeve 803. Simultaneously, the graphite ring 802 utilizes the self-lubricating properties of graphite to reduce frictional loss. Furthermore, when the drive shaft 4 drives the impeller 6 to rotate, it also drives the gear ring 903 to rotate via the central gear 901 and planetary gear 902. At this time, the limiting bracket 904 provides limiting support for the gear ring 903, causing the limiting ring 905 to rotate. Since the central gear 901, planetary gear 902, and gear ring 903 form a reduction structure, they can provide a large driving force and prevent excessive load on the drive shaft 4. Then, the limiting ring 905 pushes the pulley 906, causing the lifting plate 907 to move down along the fixed rod 908. When the pulley 906 moves to the recess of the limiting ring 905... The return spring 909 pushes the lifting plate 907 upward under the limit of the fixed rod 908, so that it can move up and down without the need for an additional power source during use. When the lifting plate 907 moves up, it will drive the first piston rod 1002 to move up. Due to the negative pressure formed inside one end of the fixed cylinder 1001, external coolant can be drawn into one end of the fixed cylinder 1001 through the first one-way valve 1003 and the suction pipe 1004. When the lifting plate 907 moves down, the coolant inside the fixed cylinder 1001 will flow into the heat exchange chamber 1006 through the second one-way valve 1005 to cool the sealing sleeve 803 as a whole, thereby enhancing the stability of the seal and enabling the fan to operate stably. The spiral blades 1007 guide the coolant so that the coolant heated by heat exchange can be discharged and recovered in time through the drain pipe 1008, avoiding the accumulation of hot liquid and affecting the overall cooling effect.

[0024] Please see Figures 4 to 7A pressure stabilizing assembly 11 is connected to one bottom end of the lifting plate 907. The pressure stabilizing assembly 11 includes a second piston rod 1101, a third one-way valve 1102, and a fourth one-way valve 1103. The second piston rod 1101 is mounted on one bottom end of the lifting plate 907 and is slidably connected to the fixed cylinder 1001. The third one-way valve 1102 is mounted on the front end of the fixed cylinder 1001, and the fourth one-way valve 1103 is fixed to the bottom of the fixed cylinder 1001. The fourth one-way valve 1103 is connected to the interior of the sealing groove 804. The voltage stabilizing assembly 11, connected in series, also includes a fixed sleeve 1104, a sealing ring 1105, a sealing plug 1106, a guide rod 1107, a compression spring 1108, and an adjusting frame 1109. The lower end of the sealing sleeve 803 is fixed with the fixed sleeve 1104, and the upper end of the fixed sleeve 1104 is fitted with a sealing ring 1105. A sealing plug 1106 is located at the bottom of the sealing ring 1105, and a guide rod 1107 is connected to the bottom of the sealing plug 1106. A compression spring 1108 is sleeved on the outer side of the guide rod 1107. An adjusting frame 1109 is connected to the bottom of 1108, and the adjusting frame 1109 is slidably connected to the guide rod 1107. A fine-tuning component 12 is connected to the lower end of the adjusting frame 1109. The fine-tuning component 12 includes a screw 1201, a limiting rod 1202, a protrusion 1203, and an anti-slip sleeve 1204. The screw 1201 is threadedly connected to the lower end of the adjusting frame 1109, and the screw 1201 is rotatably connected to the fixing sleeve 1104. The limiting rod 1202 is fixed to the bottom of the screw 1201, and the outer side of the limiting rod 1202 is equidistant from the limit rod 1207. The adjustment assembly 12 is provided with a protrusion 1203, and an anti-slip sleeve 1204 is slidably connected to the outer side of the protrusion 1203. The fine adjustment assembly 12 also includes a magnetic toothed ring 1205, a pointer 1206 and a scale 1207. The top of the anti-slip sleeve 1204 is provided with a magnetic toothed ring 1205, and the magnetic toothed ring 1205 is fixedly connected to the fixed sleeve 1104. The two sides of the adjustment frame 1109 are provided with pointers 1206, and a scale 1207 is slidably connected to one side of the pointer 1206, and the scale 1207 is fixedly connected to the fixed sleeve 1104. The specific operation is as follows: pull down the anti-slip sleeve 1204 to separate it from the magnetic toothed ring 1205, and then rotate the anti-slip sleeve 1204 to drive the screw 1201 to rotate through the protrusion 1203, thereby controlling the height of the adjusting frame 1109 and adjusting the compression of the spring. This balances the pressure in the middle of the sealing groove 804 and inside the volute 7. At the same time, the adjusting frame 1109 will also drive the pointer 1206 to move on the scale 1207, making the adjustment more precise. After releasing, the magnetic toothed ring 1205 will attract the iron anti-slip sleeve 1204 and limit it through the teeth, thereby preventing the threads from loosening due to the reciprocating vibration of the compressed spring 1108 and affecting the stability after adjustment. During use, the lifting plate 907 will drive the second piston rod 1101 to move upward, allowing external gas to enter the other end of the fixed cylinder 1001 through the third one-way valve 1102. When the lifting plate 907 drives the second piston rod 1101 upward, the external gas can enter the other end of the fixed cylinder 1001 through the third one-way valve 1102. When rod 1101 moves down, the air inside the fixed cylinder 1001 enters the sealing groove 804 in the middle of the sealing sleeve 803 through the fourth one-way valve 1103. At the same time, the compression spring 1108 pushes the sealing plug 1106 under the limit of the guide rod 1107 and the adjusting frame 1109, so that it fits against the sealing ring 1105, thereby increasing the air pressure in the middle of the sealing groove 804 and making it the same as the pressure inside the volute 7. This pressure can reduce the tendency of gas in the volute 7 to pass through the labyrinth channel. When the air pressure in the middle of the sealing groove 804 becomes too high during the reciprocating up and down movement of the second piston rod 1101, the gas will push the sealing plug 1106, and the compression spring 1108 will be compressed. At this time, since the sealing plug 1106 separates from the sealing ring 1105, it can automatically release gas and control pressure. Therefore, when a small amount of gas leaks from the right end of the sealing sleeve 803, the air pressure in the middle of the sealing groove 804 can be kept within a certain range.

[0025] In summary, this type of high-temperature fan with stable exhaust is used by first pulling down the anti-slip sleeve 1204 to separate it from the magnetic toothed ring 1205. Then, rotating the anti-slip sleeve 1204 will drive the screw 1201 to rotate via the convex strip 1203, thereby controlling the height of the adjusting frame 1109. This balances the pressure between the middle of the sealing groove 804 and the inside of the volute 7 during operation. Simultaneously, the adjusting frame 1109 will also cause the pointer 1206 to move on the scale 1207 for easy observation. After releasing the sleeve, the magnetic toothed ring 1205 will attract the iron anti-slip sleeve 1204, using its teeth to limit its movement. Next, the bearing housing 2 will limit and support the drive shaft 4, and the motor 3 will drive the impeller 6 to rotate inside the volute 7 via the drive shaft 4. At this time, the graphite ring 80... The labyrinth channel formed by the 2 and sealing groove 804 improves the sealing performance between the drive shaft 4 and the sealing sleeve 803. Then, when the drive shaft 4 drives the impeller 6 to rotate, it also drives the gear ring 903 to rotate through the central gear 901 and planetary gear 902. At this time, the limit bracket 904 will limit and support the gear ring 903, which will cause the limit ring 905 to rotate. When the pulley 906 moves to the concave part of the limit ring 905, the return spring 909 will push the lifting plate 907 under the limit of the fixed rod 908, so that it moves upward and resets. When the lifting plate 907 moves upward, it will drive the first piston rod 1002 to move upward. Since a negative pressure is formed inside one end of the fixed cylinder 1001, the external coolant can be drawn through the first one-way valve 1003 and the suction pipe 1004. The coolant enters one end of the fixed cylinder 1001. Simultaneously, the lifting plate 907 moves the second piston rod 1101 upwards, allowing external gas to enter the other end of the fixed cylinder 1001 through the third one-way valve 1102. Then, the limiting ring 905, when rotating, pushes the pulley 906, causing the lifting plate 907 to move downwards along the fixed rod 908. This causes the first piston rod 1002 to move downwards, and the coolant inside the fixed cylinder 1001 flows into the heat exchange chamber 1006 through the second one-way valve 1005, cooling the entire sealing sleeve 803 and enhancing the stability of the seal. This allows the fan to operate stably for ventilation. Furthermore, the spiral blades 1007 guide the coolant flow, ensuring that the heated coolant can pass through… The drain pipe 1008 promptly discharges and recycles the liquid. Finally, the lifting plate 907 will also drive the second piston rod 1101 to move downwards. The air inside the fixed cylinder 1001 will then enter the sealing groove 804 in the middle of the sealing sleeve 803 through the fourth one-way valve 1103. At the same time, the compression spring 1108 will push the sealing plug 1106 under the limit of the guide rod 1107 and the adjusting frame 1109, so that it fits against the sealing ring 1105. This will increase the air pressure in the middle of the sealing groove 804, making it the same as the pressure inside the volute 7. This pressure can reduce the tendency of gas in the volute 7 to pass through the labyrinth channel. When the air pressure in the middle of the sealing groove 804 becomes too high during the reciprocating up and down movement of the second piston rod 1101, the gas will push the sealing plug 1106.The compression spring 1108 will then be compressed. At this point, since the sealing plug 1106 separates from the sealing ring 1105, automatic pressure release and control can be achieved.

[0026] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-temperature fan for stable air extraction, characterized in that, The device includes a base (1) and a cooling assembly (10). A bearing housing (2) is mounted on one top end of the base (1), and a motor (3) is fixed to one side of the bearing housing (2). One end of the motor (3) is connected to a drive shaft (4). A sealing assembly (8) is provided on the outer side of one end of the drive shaft (4), and a drive assembly (9) is connected to the upper part of the sealing assembly (8). The cooling assembly (10) is located at one end of the drive assembly (9). The cooling assembly (10) includes a fixed cylinder (1001), a first piston rod (1002), a first one-way valve (1003), a suction pipe (1004), a second one-way valve (1005), a heat exchange chamber (1006), spiral blades (1007), and... The upper part of the sealing assembly (8) is connected to a fixed cylinder (1001), and a first piston rod (1002) is slidably connected inside one end of the fixed cylinder (1001). A first one-way valve (1003) is provided at the front of the fixed cylinder (1001), and a suction pipe (1004) is connected to the front end of the first one-way valve (1003). A second one-way valve (1005) is installed at one bottom end of the fixed cylinder (1001). A heat exchange chamber (1006) is opened inside the outer end of the sealing assembly (8), and a spiral blade (1007) is installed inside the heat exchange chamber (1006). A drain pipe (1008) is fixed at the bottom of one end of the heat exchange chamber (1006).

2. The high-temperature fan for stable air extraction according to claim 1, characterized in that, One end of the drive shaft (4) is connected to a heat insulation pad (5), and an impeller (6) is provided on one side of the heat insulation pad (5). A volute (7) is provided on the outer side of the impeller (6), and the volute (7) is fixedly connected to the base (1).

3. The high-temperature fan for stable air extraction according to claim 2, characterized in that, The sealing assembly (8) includes a bushing (801), a graphite ring (802), a sealing sleeve (803), and a sealing groove (804). The bushing (801) is placed on the outer side of one end of the drive shaft (4), and the graphite ring (802) is fixed at equal intervals on the outer side of the bushing (801). The sealing sleeve (803) is placed on one side of the volute (7), and the sealing groove (804) is opened on the inner side of the sealing sleeve (803). The sealing sleeve (803) is slidably connected to the graphite ring (802).

4. A high-temperature fan for stable air extraction according to claim 3, characterized in that, The drive assembly (9) includes a central gear (901), a planetary gear (902) and a gear ring (903). The central gear (901) is fixed on the outer side of the middle part of the drive shaft (4), and the planetary gear (902) meshes with the outer side of the central gear (901). The planetary gear (902) is rotatably connected to the bearing housing (2), and the gear ring (903) meshes with the outer side of the planetary gear (902).

5. A high-temperature fan for stable air extraction according to claim 4, characterized in that, The drive assembly (9) further includes a limiting frame (904), a limiting ring (905), and a pulley (906). The outer side of the gear ring (903) is rotatably connected to the limiting frame (904), and the limiting frame (904) is fixedly connected to the bearing housing (2). A limiting ring (905) is installed inside one end of the gear ring (903), and a pulley (906) is provided on the inner side of the limiting ring (905).

6. A high-temperature fan for stable air extraction according to claim 5, characterized in that, The drive assembly (9) further includes a lifting plate (907), a fixed rod (908), and a return spring (909). One end of the pulley (906) is rotatably connected to the lifting plate (907), and the lifting plate (907) is fixedly connected to the first piston rod (1002). One end of the lifting plate (907) is slidably connected to the fixed rod (908), and the fixed rod (908) is fixedly connected to the limit frame (904). Moreover, the lower end of the fixed rod (908) is sleeved with a return spring (909).

7. A high-temperature fan for stable air extraction according to claim 6, characterized in that, The bottom end of the lifting plate (907) is connected to a pressure stabilizing component (11). The pressure stabilizing component (11) includes a second piston rod (1101), a third one-way valve (1102), and a fourth one-way valve (1103). The bottom end of the lifting plate (907) is provided with the second piston rod (1101), and the second piston rod (1101) is slidably connected to the fixed cylinder (1001). The front end of the fixed cylinder (1001) is provided with the third one-way valve (1102), and the bottom of the fixed cylinder (1001) is fixed with the fourth one-way valve (1103). The fourth one-way valve (1103) is connected to the interior of the sealing groove (804).

8. A high-temperature fan for stable air extraction according to claim 7, characterized in that, The voltage stabilizing assembly (11) further includes a fixed sleeve (1104), a sealing ring (1105), a sealing plug (1106), a guide rod (1107), a compression spring (1108), and an adjusting frame (1109). The lower end of the sealing sleeve (803) is fixed with the fixed sleeve (1104), and the upper end of the fixed sleeve (1104) is provided with the sealing ring (1105). The bottom of the sealing ring (1105) is provided with the sealing plug (1106), and the bottom of the sealing plug (1106) is connected to the guide rod (1107). The outer side of the guide rod (1107) is sleeved with the compression spring (1108), and the bottom of the compression spring (1108) is connected to the adjusting frame (1109). The adjusting frame (1109) is slidably connected to the guide rod (1107).

9. A high-temperature fan for stable air extraction according to claim 8, characterized in that, The lower end of the adjustment frame (1109) is connected to a fine-tuning component (12). The fine-tuning component (12) includes a screw (1201), a limiting rod (1202), a protrusion (1203), and an anti-slip sleeve (1204). The screw (1201) is threadedly connected to the lower end of the adjustment frame (1109), and the screw (1201) is rotatably connected to the fixed sleeve (1104). The bottom of the screw (1201) is fixed with a limiting rod (1202), and protrusions (1203) are equidistantly arranged on the outer side of the limiting rod (1202). The outer side of the protrusions (1203) is slidably connected with an anti-slip sleeve (1204).

10. A high-temperature fan for stable air extraction according to claim 9, characterized in that, The fine-tuning component (12) also includes a magnetic toothed ring (1205), a pointer (1206) and a scale (1207). The top of the anti-slip sleeve (1204) is provided with a magnetic toothed ring (1205), and the magnetic toothed ring (1205) is fixedly connected to the fixed sleeve (1104). The two sides of the adjustment frame (1109) are provided with pointers (1206), and a scale (1207) is slidably connected to one side of the pointer (1206), and the scale (1207) is fixedly connected to the fixed sleeve (1104).

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