Direct-connection type high-temperature-resistant centrifugal fan

Abstract

The utility model discloses a direct-connection type high-temperature-resistant centrifugal fan, and particularly relates to the technical field of centrifugal fans, the direct-connection type high-temperature-resistant centrifugal fan comprises a centrifugal fan body, a fixed bottom plate is arranged at the bottom of the centrifugal fan body, a supporting column is fixedly connected between the centrifugal fan body and the fixed bottom plate, and a heat dissipation mechanism is arranged on one side of the centrifugal fan body; the heat dissipation mechanism comprises a moving column arranged at the top of the fixed bottom plate, and the top of the moving column is fixedly connected with a moving plate. According to the utility model, through the arrangement of the heat dissipation mechanism, air flow generated by the centrifugal fan itself sends air to the surface of the motor to help heat dissipation, especially in a closed environment, heat generated in the motor can cause temperature rise, and the operation of the centrifugal fan can effectively reduce the working temperature of the motor and improve the heat dissipation efficiency; therefore, the efficiency and the performance of the centrifugal fan are improved, the service life of the whole centrifugal fan is prolonged, and the centrifugal fan has the characteristic of high temperature resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, and more specifically, to a direct-connected high-temperature resistant centrifugal fan. Background Art

[0002] Centrifugal fan is a common industrial ventilation equipment, mainly used for conveying gas, removing exhaust gas, increasing air circulation, etc. Its working principle is to use centrifugal force to push gas or air to the outlet of the fan to generate airflow.

[0003] After searching, the Chinese patent with the publication number CN215890511U discloses a centrifugal fan. The prior art still cannot suppress the airflow flow in the gap between the impeller and the volute, and the improvement effect on the leakage loss is still unsatisfactory and limited. Secondly, due to the setting of the volute guide port, the air entering the volute structure of the centrifugal fan is guided and blocked by the guide port, and the work capacity of the blade area near the top of the centrifugal fan is low, which aggravates the problem of the tendency of the airflow to flow back from the top of the centrifugal fan and the gap between the volute. By improving the impeller and volute structure of the centrifugal fan, a circle of annular fixing strips is added to the outer edge of the impeller, and a circle of anti-leakage blades is set on the side of the annular fixing strip close to the air inlet, and the anti-leakage blades are used to enhance the work capacity of the top area of ​​the impeller, thereby improving the uniformity of the work of the entire impeller; the inclined surface of the annular fixing strip is used to reduce the air outlet channel of the anti-leakage blade, thereby improving the jet kinetic energy of the airflow, and finally reducing the leakage loss of the air at the air inlet of the volute.

[0004] During use, the centrifugal fan drives the fan blades through a motor. However, when used in a high temperature environment, the motor is easily affected by the high temperature. At the same time, due to its insufficient heat dissipation effect, the efficiency and performance of the centrifugal fan are reduced, and the service life of the centrifugal fan is shortened. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the utility model provides a direct-connected high-temperature resistant centrifugal fan to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a direct-connected high-temperature resistant centrifugal fan, comprising a centrifugal fan body, a fixed bottom plate is arranged at the bottom of the centrifugal fan body, a support column is fixedly connected between the centrifugal fan body and the fixed bottom plate, and a heat dissipation mechanism is arranged on one side of the centrifugal fan body;

[0007] The heat dissipation mechanism includes a movable column, which is arranged on the top of the fixed bottom plate, the top of the movable column is fixedly connected to a movable plate, the top of the movable plate is fixedly connected to a movable clamping plate, a motor is installed on one side of the centrifugal fan body, a first inner cavity is opened inside the movable plate, a heat dissipation net is slidably connected inside the first inner cavity, a connecting air pipe is fixedly connected to the top of one side of the centrifugal fan body, one end of the connecting air pipe is fixedly connected to an air outlet shell, and a movable mounting mechanism is arranged at the bottom of the movable column.

[0008] Preferably, both sides of the inner wall of the first inner cavity are provided with limit sliding grooves, both sides of the heat dissipation net are fixedly connected with limit sliding blocks, and the limit sliding blocks are slidably connected to the limit sliding grooves.

[0009] Preferably, the mobile installation mechanism includes a second inner cavity, the second inner cavity is opened inside the fixed base plate, a threaded rod is rotatably connected inside the second inner cavity, a threaded sleeve is threadedly connected to the outer side of the threaded rod, and a through sliding groove is opened on the top surface of the fixed base plate.

[0010] Preferably, two groups of threads are symmetrically arranged on the outer surface of the threaded rod, a sliding rod is fixedly connected to the top of the threaded sleeve, and the sliding rod is slidably connected to the through sliding groove.

[0011] Preferably, one end of the threaded rod passes through the fixed base plate and extends to one side of the fixed base plate, and one end of the threaded rod is fixedly connected to a rocker.

[0012] Preferably, support frames are fixedly connected to both sides of the bottom of the fixed bottom plate, and the bottom of one end of the connecting air pipe is arranged downward along the opposite direction of the air outlet of the centrifugal fan body.

[0013] Preferably, the air outlet housing is arranged directly above the motor, the number of the movable clamping plates is set to two, and the motor is installed between the two movable clamping plates.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting a heat dissipation mechanism, heat is dissipated through the heat dissipation net at the bottom of the motor, which is convenient for the motor to dissipate heat through air circulation. At the same time, the airflow generated by the centrifugal fan body is used to discharge part of the airflow inside the centrifugal fan body to the motor surface through the connecting air pipe and the air outlet shell, thereby improving the heat dissipation effect of the motor. Compared with the prior art, the airflow is generated by the centrifugal fan itself to send air to the motor surface to help dissipate heat. Especially in a closed environment, the heat generated inside the motor will cause the temperature to rise, and the operation of the centrifugal fan can effectively reduce the working temperature of the motor, improve the heat dissipation efficiency, and keep the motor working at a lower temperature, thereby improving its efficiency and performance, and increasing the service life of the overall centrifugal fan, which has high temperature resistance characteristics;

[0016] 2. By setting up a mobile installation mechanism and rotating the rocker, the threaded rod rotates to drive the two threaded sleeves to approach each other, so that the two mobile clamps approach each other. The two mobile clamps clamp and install the motor, thereby improving the installation stability of the motor. It is suitable for the installation and fixation of motors of different sizes. At the same time, the output end of the motor is directly connected to the centrifugal fan body without an intermediate transmission device, which helps to reduce energy loss and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a side structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the mobile installation mechanism of the utility model.

[0020] Figure 4 It is a side sectional structural schematic diagram of the utility model.

[0021] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0022] The accompanying drawings are marked as follows: 1. centrifugal fan body; 2. fixed base plate; 3. support column; 4. movable column; 5. movable plate; 6. movable splint; 7. motor; 8. first inner cavity; 9. heat dissipation net; 10. connecting air pipe; 11. air outlet shell; 12. limiting slider; 13. limiting slide groove; 14. second inner cavity; 15. threaded rod; 16. threaded sleeve; 17. slide rod; 18. through slide groove; 19. rocker; 20. support frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As attached Figure 1-5 The direct-connected high-temperature resistant centrifugal fan shown comprises a centrifugal fan body 1, a fixed bottom plate 2 is arranged at the bottom of the centrifugal fan body 1, a support column 3 is fixedly connected between the centrifugal fan body 1 and the fixed bottom plate 2, and a heat dissipation mechanism is arranged on one side of the centrifugal fan body 1;

[0025] The heat dissipation mechanism includes a movable column 4, which is arranged on the top of the fixed base plate 2, a movable plate 5 is fixedly connected to the top of the movable column 4, a movable splint 6 is fixedly connected to the top of the movable plate 5, a motor 7 is installed on one side of the centrifugal fan body 1, a first inner cavity 8 is opened inside the movable plate 5, a heat dissipation net 9 is slidably connected inside the first inner cavity 8, a connecting air pipe 10 is fixedly connected to the top of one side of the centrifugal fan body 1, one end of the connecting air pipe 10 is fixedly connected to an air outlet shell 11, and a movable installation mechanism is arranged at the bottom of the movable column 4.

[0026] As attached Figure 5 As shown, limiting grooves 13 are provided on both sides of the inner wall of the first inner cavity 8, and limiting sliders 12 are fixedly connected on both sides of the heat dissipation net 9. The limiting sliders 12 are slidably connected to the limiting grooves 13, which improves the stability of the heat dissipation net 9 during movement and prevents the heat dissipation net 9 from falling off from the limiting grooves 13.

[0027] As attached Figure 1-4 As shown, the mobile installation mechanism includes a second inner cavity 14, which is opened inside the fixed base plate 2, and a threaded rod 15 is rotatably connected inside the second inner cavity 14. A threaded sleeve 16 is threadedly connected to the outer side of the threaded rod 15, and a through slide groove 18 is opened on the top surface of the fixed base plate 2. Two groups of threads are symmetrically arranged on the outer surface of the threaded rod 15. A slide rod 17 is fixedly connected to the top of the threaded sleeve 16, and the slide rod 17 is slidably connected to the through slide groove 18. One end of the threaded rod 15 penetrates the fixed base plate 2 and extends to one side of the fixed base plate 2. One end of the threaded rod 15 is fixedly connected to a rocker 19, which is convenient for installing and fixing motors 7 of different sizes.

[0028] As shown in Figures 1-4, support frames 20 are fixedly connected to both sides of the bottom of the fixed base plate 2 to ensure the stability of the overall centrifugal fan body 1. The bottom of one end of the connecting air pipe 10 is arranged downward along the opposite direction of the air outlet of the centrifugal fan body 1 to facilitate air to flow into the connecting air pipe (10).

[0029] As attached Figure 1-4 As shown, the air outlet housing 11 is arranged directly above the motor 7 , the number of the movable clamping plates 6 is set to two, and the motor 7 is installed between the two movable clamping plates 6 , so as to facilitate clamping the motor 7 by the movable clamping plates 6 .

[0030] Working principle of the utility model: during the use of the direct-connected high-temperature resistant centrifugal fan provided by the utility model, heat will be generated when the motor 7 is running. When the motor 7 is cooled, the heat is dissipated through the heat dissipation net 9 at the bottom of the motor 7, ensuring that the motor 7 is always in a good heat dissipation environment, which is convenient for air flow to take away the heat on the motor 7. At the same time, the centrifugal fan body 1 inhales air during operation and discharges the air through the air outlet above it. During the discharge process, part of the air enters the air outlet shell 11 through the connecting air pipe 10. At the same time, since the air outlet shell 11 is arranged directly above the motor 7, part of the airflow in the centrifugal fan body 1 is blown to the surface of the motor 7 through the air outlet shell 11, further improving the heat dissipation effect of the motor 7, so that the overall centrifugal fan can be used in a high temperature environment, and its high temperature resistance effect is improved;

[0031] When installing and fixing the motor 7, the motor 7 is placed between the two movable clamps 6, and then the rocker 19 is rotated to drive the threaded rod 15 to rotate. At the same time, due to the threaded connection between the threaded rod 15 and the threaded sleeve 16, two groups of threads are symmetrically arranged on the outer surface of the threaded rod 15, and then the two threaded sleeves 16 are driven to move closer to each other by the rotation of the threaded rod 15, thereby making the two movable clamps 6 move closer to each other, so that the two movable clamps 6 clamp and fix the motor 7, thereby improving the installation and fixing effect of the motor 7 and ensuring the stability of the motor 7.

[0032] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A direct-connected high-temperature resistant centrifugal fan, comprising a centrifugal fan body (1), characterized in that: A fixed bottom plate (2) is provided at the bottom of the centrifugal fan body (1), a support column (3) is fixedly connected between the centrifugal fan body (1) and the fixed bottom plate (2), and a heat dissipation mechanism is provided on one side of the centrifugal fan body (1); The heat dissipation mechanism comprises a movable column (4), wherein the movable column (4) is arranged on the top of the fixed bottom plate (2), the top of the movable column (4) is fixedly connected to a movable plate (5), the top of the movable plate (5) is fixedly connected to a movable clamping plate (6), a motor (7) is installed on one side of the centrifugal fan body (1), a first inner cavity (8) is opened inside the movable plate (5), a heat dissipation net (9) is slidably connected inside the first inner cavity (8), a connecting air pipe (10) is fixedly connected to the top of one side of the centrifugal fan body (1), one end of the connecting air pipe (10) is fixedly connected to an air outlet shell (11), and a movable installation mechanism is arranged at the bottom of the movable column (4).

2. The direct-connected high-temperature resistant centrifugal fan according to claim 1, characterized in that: Limiting slide grooves (13) are provided on both sides of the inner wall of the first inner cavity (8), and limiting sliders (12) are fixedly connected to both sides of the heat dissipation net (9), and the limiting sliders (12) are slidably connected to the limiting slide grooves (13).

3. The direct-connected high temperature resistant centrifugal fan according to claim 1, characterized in that: The mobile installation mechanism comprises a second inner cavity (14), the second inner cavity (14) is opened inside the fixed base plate (2), a threaded rod (15) is rotatably connected inside the second inner cavity (14), a threaded sleeve (16) is threadedly connected to the outer side of the threaded rod (15), and a through slide groove (18) is opened on the top surface of the fixed base plate (2).

4. The direct-connected high temperature resistant centrifugal fan according to claim 3, characterized in that: The outer surface of the threaded rod (15) is symmetrically provided with two groups of threads, the top of the threaded sleeve (16) is fixedly connected with a sliding rod (17), and the sliding rod (17) is slidably connected to the through sliding groove (18).

5. The direct-connected high temperature resistant centrifugal fan according to claim 3, characterized in that: One end of the threaded rod (15) passes through the fixed base plate (2) and extends to one side of the fixed base plate (2); one end of the threaded rod (15) is fixedly connected to a rocker (19).

6. The direct-connected high temperature resistant centrifugal fan according to claim 1, characterized in that: Support frames (20) are fixedly connected to both sides of the bottom of the fixed bottom plate (2), and the bottom of one end of the connecting air pipe (10) is arranged downwardly along the opposite direction of the air outlet of the centrifugal fan body (1).

7. The direct-connected high temperature resistant centrifugal fan according to claim 1, characterized in that: The air outlet housing (11) is arranged directly above the motor (7), the number of the movable clamping plates (6) is set to two, and the motor (7) is installed between the two movable clamping plates (6).

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