High temperature sealed fan

Abstract

The utility model discloses a high temperature sealed fan, including base, the vertical setting of base top has the pump body, and the one side of pump body is provided with the pump cover sealed connection with it, and the pump body and the pump cover between group form the cavity of placing, and the vertical setting of cavity inside has the impeller, the one side of far away pump body is provided with motor, and the one side drive of motor is provided with the transmission shaft drive connection with the impeller, the first cooling heat abstractor is connected between motor and pump body, and the transmission shaft penetrates first cooling heat abstractor, and first cooling heat abstractor sets up top on the base, and the other side of first cooling heat abstractor still transversely set up and the connecting sleeve of motor connection, the other side of pump body transversely has the second cooling heat abstractor intercommunication with first cooling heat abstractor, and second cooling heat abstractor transversely sets up the other side top on the base, and the front and rear both ends of one side top of pump cover all form the air outlet and the air inlet.

Description

Technical Field

[0001] This utility model relates to the field of fans, and in particular to a high-temperature sealed fan. Background Technology

[0002] Currently, most high-temperature sealing fans on the market use a high-temperature bearing structure. However, this type of bearing has limitations in withstanding high temperatures, a very limited lifespan, and is prone to quality problems. Furthermore, this type of high-temperature sealing fan cannot be used above a certain temperature, which is a limitation. Therefore, a new high-temperature sealing fan is proposed. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A high-temperature sealing fan, characterized in that it includes a base, a pump body vertically arranged above the base, a pump cover sealed to one side of the pump body, and a placement cavity formed between the pump body and the pump cover. An impeller is vertically arranged inside the placement cavity. A motor is arranged on the side away from the pump body, and the motor is located on one side above the base. A drive shaft connected to the impeller is driven on one side of the motor, and the drive shaft passes through the pump body and the pump cover. A first cooling and heat dissipation device is pipe-connected between the motor and the pump body, and the drive shaft passes through the first cooling and heat dissipation device. The first cooling and heat dissipation device is located above the base. A connecting sleeve connected to the motor is arranged laterally on the other side of the first cooling and heat dissipation device. A second cooling and heat dissipation device communicating with the first cooling and heat dissipation device is arranged laterally on the other side above the base. An air outlet and an air inlet are formed at both ends of one side above the pump cover.

[0005] Preferably, a first pressure reducing device is provided on one side of the first cooling and heat dissipation device to reduce the pressure of the airflow inside it, and the drive shaft passes through the first pressure reducing device, and the connection between the first cooling and heat dissipation device and the pump body is filled with a second seal.

[0006] Preferably, the first cooling and heat dissipation device is provided with a first heat dissipation device and a second heat dissipation device that are in communication with it, and the first heat dissipation device and the second heat dissipation device are respectively located at the front and rear ends of the outside of the first cooling and heat dissipation device, and the first heat dissipation device and the second heat dissipation device are respectively arranged horizontally on the base.

[0007] Preferably, the connection between the connecting sleeve and the first cooling and heat dissipation device is filled with a fifth seal, and a connecting sealing sleeve is arranged laterally inside the connecting sleeve. A second shaft end pressure plate is provided on one side inside the connecting sealing sleeve, and the drive shaft passes through the second shaft end pressure plate and the connecting sealing sleeve. A second bearing for the drive shaft to pass through and rotate is provided on one side outside the connecting sealing sleeve. A first flat key and a second flat key are also provided between the connecting sealing sleeve and the drive shaft. The first flat key is laterally located on one side inside the connecting sealing sleeve and is in contact with the drive shaft. The second flat key is laterally located on the other side inside the connecting sealing sleeve and is in contact with the drive shaft.

[0008] Preferably, a second pressure reducing device is provided on one side inside the second cooling and heat dissipation device to reduce the pressure of the airflow inside it, and the drive shaft passes through the second pressure reducing device, and a third seal is filled at the connection between the second cooling and heat dissipation device and the pump body.

[0009] Preferably, the second cooling and heat dissipation device is provided with a third heat dissipation device and a fourth heat dissipation device that communicate with it, and the third heat dissipation device and the fourth heat dissipation device are respectively located at the front and rear ends of the second cooling and heat dissipation device, and the third heat dissipation device and the fourth heat dissipation device are respectively arranged horizontally on the base.

[0010] Preferably, a bearing cover is vertically provided on the other side of the exterior of the second cooling and heat dissipation device, and a first bearing that is driven and cooperates with the transmission shaft is vertically provided on one side of the bearing cover. A first shaft end pressure plate is provided between the bearing cover and the first bearing, and the first shaft end pressure plate is vertically located on the other side inside the bearing cover. The first shaft end pressure plate is provided with screws that are fixed inside the bearing cover, and a fourth seal is filled at the connection between the bearing cover and the second cooling and heat dissipation device.

[0011] Preferably, a spacer sleeve is provided between the first cooling and heat dissipation device and the second cooling and heat dissipation device and the drive shaft, and the spacer sleeve is located laterally inside the first cooling and heat dissipation device and the second cooling and heat dissipation device respectively, and the drive shaft passes through the spacer sleeve and rotates inside the spacer sleeve; the connection between the pump body and the pump cover is filled with a first seal.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the motor drives the transmission shaft to rotate the impeller inside the pump body, the high-temperature medium generated during the operation of the fan is drawn into the pump body through the air inlet while the impeller rotates. The high-temperature medium is compressed and depressurized in the circulating rotation of the impeller, causing it to flow into the first and second cooling and heat dissipation devices. The temperature of the high-temperature medium is gradually cooled to a low temperature through the first and second cooling and heat dissipation devices. The resulting cooling airflow will rotate and cool the rotating transmission shaft, which can prevent the shaft from bending, becoming eccentric, or changing in diameter, thus preventing damage to the dynamic balance and causing vibration and noise. After the cold air flowing between the first and second cooling and heat dissipation devices absorbs the heat, it is discharged from the air outlet under the rotation of the impeller, and waits for the next extraction of high-temperature medium.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Fig. 1 This is a schematic diagram of the structure of a high-temperature sealing fan;

[0016] Fig. 2 This is another structural schematic diagram of a high-temperature sealing fan;

[0017] Fig. 3 This is another structural schematic diagram of a high-temperature sealing fan.

[0018] The diagram shows: 1. Base, 2. First cooling and heat dissipation device, 3. Second cooling and heat dissipation device, 4. Motor, 5. Vibration damping device, 6. First heat dissipation device, 7. Second heat dissipation device, 8. Third heat dissipation device, 9. Fourth heat dissipation device, 10. Air outlet, 11. Air inlet, 12. Pump body, 13. Pump cover, 14. First seal, 15. Impeller, 16. First pressure reducing device, 17. Second pressure reducing device, 18. Second seal, 19. Third seal, 20. Drive shaft, 21. Shaft spacer, 22. Bearing cover, 23. First shaft end pressure plate, 24. Screw, 25. Fourth seal, 26. First bearing, 27. Connecting sleeve, 28. First flat key, 29. Connecting sealing sleeve, 30. Second shaft end pressure plate, 31. Second flat key, 32. Second bearing, 33. Fifth seal. Detailed Implementation

[0019] 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.

[0020] Please see Figs. 1-3 In this embodiment of the present invention, a high-temperature sealing fan includes a base 1. A pump body 12 is vertically arranged above the base 1, and a pump cover 13 is provided on one side of the pump body 12 for sealing connection. The pump body 12 and the pump cover 13 form a placement cavity (not shown in the figure). An impeller 15 is vertically arranged inside the placement cavity. A motor 4 is arranged on the side away from the pump body 12, and the motor 4 is located on the side above the base 1. A transmission shaft 20 driven by the impeller 15 is arranged on one side of the motor 4. The transmission shaft 20 passes through the pump body 2 and the pump cover 13. A first cooling and heat dissipation device 2 is pipe-connected between the motor 4 and the pump body 12, and the transmission shaft 20 passes through the first cooling and heat dissipation device 2. The first cooling and heat dissipation device 2 is arranged above the base. A connecting sleeve 27 connected to the motor 4 is arranged laterally on the other side of the first cooling and heat dissipation device 2. A second cooling and heat dissipation device 3 communicating with the first cooling and heat dissipation device 2 is pipe-connected laterally on the other side of the pump body 12. The heating device 3 is horizontally positioned on the other side above the base 1, and air outlets 10 and air inlets 11 are formed at both ends of the pump cover 13. When the motor 4 drives the transmission shaft 20 to rotate the impeller 15 inside the pump body 12, the high-temperature medium generated by the fan during operation is drawn into the pump body 12 through the air inlet 11 while the impeller 15 rotates. The high-temperature medium is compressed and depressurized by the cyclic rotation of the impeller 15, causing it to flow into the first cooling and heat dissipation device 2 and the second cooling and heat dissipation device 3. The temperature of the high-temperature medium is gradually cooled down to a low temperature by the first cooling and heat dissipation device 2 and the second cooling and heat dissipation device 3. The resulting cooling airflow will rotate and cool the rotating transmission shaft 4, preventing the shaft from bending, becoming eccentric, or changing in diameter, thus preventing damage to the dynamic balance and causing vibration and noise. After the cold air flowing between the first cooling and heat dissipation device 2 and the second cooling and heat dissipation device 3 absorbs the heat, it is discharged from the air outlet 10 under the rotation of the impeller 15, and waits for the next extraction of high-temperature medium.

[0021] The first cooling and heat dissipation device 2 has a first pressure reducing device 16 on one side to reduce the pressure of the internal airflow. The drive shaft 20 passes through the first pressure reducing device 16. The connection between the first cooling and heat dissipation device 2 and the pump body 12 is filled with a second seal 18. The second seal 18 prevents leakage when the pump body 12 draws gas into the first cooling and heat dissipation device 2 for cooling. In this embodiment, the first pressure reducing device 16 can adopt known technical means, such as a pressure reducing valve. The specific selection and configuration of the first pressure reducing device 16 is not an innovation of this utility model and can be implemented with reference to the prior art. Therefore, it will not be described in detail.

[0022] The first cooling and heat dissipation device 2 is provided with a first heat dissipation device 6 and a second heat dissipation device 7 that are connected to it. The first heat dissipation device 6 and the second heat dissipation device 7 are located at the front and rear ends of the exterior of the first cooling and heat dissipation device 2, respectively. The first heat dissipation device 6 and the second heat dissipation device 7 are arranged horizontally on the base 1. The high-temperature medium inside the first cooling and heat dissipation device 2 can be cooled by the circulation of the first heat dissipation device 6 and the second heat dissipation device 7. The first heat dissipation device 6 and the second heat dissipation device 7 can adopt known technical means, such as heat sinks. The specific selection and configuration of the first heat dissipation device 6 and the second heat dissipation device 7 are not the innovation of this utility model and can be implemented with reference to the existing technology, so they will not be described in detail.

[0023] The connection between the connecting sleeve 27 and the first cooling and heat dissipation device 2 is filled with a fifth seal 33, and a connecting sealing sleeve 29 is arranged laterally inside the connecting sleeve 27. A second shaft end pressure plate 30 is provided on one side inside the connecting sealing sleeve 29, and the transmission shaft 20 passes through the second shaft end pressure plate 30 and the connecting sealing sleeve 29. A second bearing 32 for the transmission shaft 20 to pass through and rotate is provided on one side outside the connecting sealing sleeve 29. A first flat key 28 and a second flat key 31 are also provided between the connecting sealing sleeve 29 and the transmission shaft 20. The first flat key 28 is laterally located on one side inside the connecting sealing sleeve 29 and is in contact with the transmission shaft 20. The second flat key 31 is laterally located on the other side inside the connecting sealing sleeve 29 and is in contact with the transmission shaft 20. Thus, by having the first flat key 28 and the second flat key 31 in contact with the sides of the transmission shaft 20 and the connecting sealing sleeve 29, the rotational torque of the transmission shaft 20 can be transmitted to the connecting sealing sleeve 29, so that the two rotate synchronously.

[0024] A second pressure reducing device 17 is provided on one side inside the second cooling and heat dissipation device 3 to reduce the pressure of the internal airflow, and the drive shaft 20 passes through the second pressure reducing device 17. The connection between the second cooling and heat dissipation device 3 and the pump body 12 is filled with a third seal 19. The third seal 19 prevents leakage when the pump body 12 draws gas into the second cooling and heat dissipation device 3 for cooling. In this embodiment, the second pressure reducing device 17 can adopt known technical means, such as a pressure reducing valve. The specific selection and configuration of the second pressure reducing device 17 is not an innovation of this utility model and can be implemented with reference to the prior art, so it will not be described in detail.

[0025] The second cooling and heat dissipation device 3 is provided with a third heat dissipation device 8 and a fourth heat dissipation device 9 that are connected to it. The third heat dissipation device 8 and the fourth heat dissipation device 9 are located at the front and rear ends of the exterior of the second cooling and heat dissipation device 3, respectively. The third heat dissipation device 8 and the fourth heat dissipation device 9 are arranged horizontally on the base 1. The high-temperature medium inside the second cooling and heat dissipation device 3 can be cooled by the circulation of the third heat dissipation device 8 and the fourth heat dissipation device 9. The third heat dissipation device 8 and the fourth heat dissipation device 9 can adopt known technical means, such as heat sinks. The specific selection and configuration of the third heat dissipation device 8 and the fourth heat dissipation device 9 are not the innovation of this utility model and can be implemented with reference to the existing technology, so they will not be described in detail.

[0026] A bearing cover 22 is vertically arranged on the other side of the exterior of the second cooling and heat dissipation device 3, and a first bearing 26 that is driven and cooperates with the transmission shaft 20 is vertically arranged on one side of the bearing cover 22. A first shaft end pressure plate 23 is arranged between the bearing cover 22 and the first bearing 26, and the first shaft end pressure plate 23 is vertically located on the other side inside the bearing cover 22. The first shaft end pressure plate 23 is provided with screws 24 that are fixed inside the bearing cover 22, and a fourth seal 25 is filled at the connection between the bearing cover 22 and the second cooling and heat dissipation device 3.

[0027] A shaft spacer 21 is provided between the first cooling and heat dissipation device 2 and the second cooling and heat dissipation device 3 and the drive shaft 20. The shaft spacer 21 is located laterally inside the first cooling and heat dissipation device 2 and the second cooling and heat dissipation device 3, respectively. The drive shaft 20 passes through the shaft spacer 21 and rotates inside the shaft spacer 21. The connection between the pump body 12 and the pump cover 13 is filled with a first seal 14.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high temperature sealed fan characterized by, The device includes a base, a pump body vertically mounted on top of the base, and a pump cover sealed to one side of the pump body. The pump body and pump cover form a placement cavity, and an impeller is vertically mounted inside the placement cavity. A motor is mounted on the side away from the pump body, located above the base. A drive shaft connected to the impeller is mounted on one side of the motor, and the drive shaft passes through the pump body and pump cover. A first cooling and heat dissipation device is pipe-connected between the motor and the pump body, and the drive shaft passes through the first cooling and heat dissipation device, which is located above the base. A connecting sleeve connected to the motor is horizontally mounted on the other side of the first cooling and heat dissipation device. A second cooling and heat dissipation device, communicating with the first cooling and heat dissipation device, is horizontally mounted on the other side above the base. An air outlet and an air inlet are formed at both ends of one side of the pump cover.

2. A high temperature sealed fan as claimed in claim 1, wherein, The first cooling and heat dissipation device has a first pressure reducing device on one side inside to reduce the pressure of the internal airflow, and the drive shaft passes through the first pressure reducing device. The connection between the first cooling and heat dissipation device and the pump body is filled with a second seal.

3. A high temperature sealed fan as claimed in claim 1, wherein, The first cooling and heat dissipation device is provided with a first heat dissipation device and a second heat dissipation device that are connected thereto. The first heat dissipation device and the second heat dissipation device are located at the front and rear ends of the outside of the first cooling and heat dissipation device, respectively, and the first heat dissipation device and the second heat dissipation device are respectively arranged horizontally on the base.

4. A high temperature sealed fan as claimed in claim 1, wherein, The connection between the connecting sleeve and the first cooling and heat dissipation device is filled with a fifth seal, and a connecting sealing sleeve is arranged laterally inside the connecting sleeve. A second shaft end pressure plate is provided on one side inside the connecting sealing sleeve, and the transmission shaft passes through the second shaft end pressure plate and the connecting sealing sleeve. A second bearing for the transmission shaft to pass through and rotate is provided on one side outside the connecting sealing sleeve. A first flat key and a second flat key are also provided between the connecting sealing sleeve and the transmission shaft. The first flat key is laterally located on one side inside the connecting sealing sleeve and is in contact with the transmission shaft. The second flat key is laterally located on the other side inside the connecting sealing sleeve and is in contact with the transmission shaft.

5. A high temperature sealed fan as claimed in claim 1, wherein, The second cooling and heat dissipation device has a second pressure reducing device on one side inside to reduce the pressure of the airflow inside it, and the drive shaft passes through the second pressure reducing device. The connection between the second cooling and heat dissipation device and the pump body is filled with a third seal.

6. A high temperature sealed fan as claimed in claim 1, wherein, The second cooling and heat dissipation device is provided with a third heat dissipation device and a fourth heat dissipation device that are connected to it. The third heat dissipation device and the fourth heat dissipation device are located at the front and rear ends of the second cooling and heat dissipation device, respectively, and are arranged horizontally on the base.

7. A high temperature sealed fan as claimed in claim 1, wherein, A bearing cover is vertically installed on the other side of the exterior of the second cooling and heat dissipation device, and a first bearing that is driven and cooperates with the transmission shaft is vertically installed on one side of the bearing cover. A first shaft end pressure plate is installed between the bearing cover and the first bearing, and the first shaft end pressure plate is vertically located on the other side inside the bearing cover. The first shaft end pressure plate is provided with screws that are fixed inside the bearing cover, and a fourth seal is filled at the connection between the bearing cover and the second cooling and heat dissipation device.

8. A high temperature sealed fan as claimed in claim 1, wherein, A shaft spacer is provided between the first and second cooling and heat dissipation devices and the drive shaft, and the shaft spacer is located laterally inside the first and second cooling and heat dissipation devices respectively, and the drive shaft passes through the shaft spacer and rotates inside the shaft spacer; the connection between the pump body and the pump cover is filled with a first seal.

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