A large-scale oxidation fan for flue gas desulfurization

Abstract

The present invention discloses a large-scale oxidation fan for flue gas desulfurization, and relates to the technical field of oxidation fans, specifically a large-scale oxidation fan for flue gas desulfurization, comprising a support base, a driving motor is fixedly installed on the top of the support base, a sound insulation box is arranged outside the driving motor, a first sound insulation layer and a second sound insulation layer are fixedly installed inside the sound insulation box, an air intake silencer is fixedly connected to the right side of the support base, and an air outlet silencer is fixedly connected to the top of the support base. The large-scale oxidation fan for flue gas desulfurization, by arranging a sound insulation box outside the driving motor and the fan, utilizes the first sound insulation layer and the second sound insulation layer inside the sound insulation box to absorb and transform the noise emitted by the driving motor and the fan, avoids the noise emitted by the driving motor and the fan from being transmitted to the outside of the sound insulation box, and effectively reduces the impact of the noise generated by the driving motor and the fan on the surrounding environment.

Description

Technical Field

[0001] The invention relates to the technical field of oxidation fans, in particular to a large-scale oxidation fan for flue gas desulfurization. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. The function of an oxidation fan is to speed up the oxidation rate. For example, an oxidation fan in a power plant oxidizes calcium sulfite into calcium sulfate. Calcium sulfite can also be oxidized under normal circumstances, but in order to improve production efficiency, it is necessary to increase the oxygen supply to promote oxidation.

[0003] Since the oxidation fan needs to rotate at high speed during operation, it is easy to generate a lot of noise during operation, which will cause noise pollution to the surrounding environment and affect the hearing of the staff. At the same time, the motor of the oxidation fan will generate a lot of heat during operation, which is easy to cause damage to the motor. For this reason, we provide a large-scale oxidation fan for flue gas desulfurization. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a large-scale oxidation blower for flue gas desulfurization, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a large-scale oxidation fan for flue gas desulfurization, comprising a support base, a drive motor is fixedly installed on the top of the support base, a sound insulation box is arranged on the outside of the drive motor, a first sound insulation layer and a second sound insulation layer are fixedly installed on the inside of the sound insulation box, an air intake muffler is fixedly connected to the right side of the support base, an air outlet muffler is fixedly connected to the top of the support base, a fixed bracket is fixedly connected to the bottom of the air outlet muffler, a heat dissipation fan is fixedly installed on the top of the fixed bracket, a shock-absorbing spring is fixedly connected to the bottom of the support base, a shock-absorbing base is fixedly connected to the bottom of the shock-absorbing base, and a buffer pad is fixedly connected to the bottom of the shock-absorbing base.

[0006] Optionally, a fan is fixedly connected to the left side of the support base, the drive motor is transmission-connected to the fan, an air inlet is fixedly connected to the left side of the fan, and the air inlet extends to the left side of the sound insulation box.

[0007] Optionally, the first sound insulation layer is a damping sound insulation board, and the first sound insulation layer includes a calcium silicate board and a damping material, and there are two calcium silicate boards sandwiched on both sides of the damping material.

[0008] Optionally, the second sound insulation layer is made of polyester fiber cotton material, and the interior of the second sound insulation layer is a porous structure.

[0009] Optionally, the intake silencer is cylindrical in shape, a through hole is provided on the surface of the intake silencer, a porous plate is fixedly connected to the interior of the intake silencer, and the porous plates are distributed in rows at equal intervals.

[0010] Optionally, a silencer filter is fixedly installed inside the outlet silencer, small holes are opened on the outer surface of the silencer filter, a silencer bowl is arranged on the top of the silencer filter, the silencer bowl is fixedly installed inside the outlet silencer, and the silencer bowl is in a trumpet shape.

[0011] Optionally, the top of the shock-absorbing base is fixedly connected with a surrounding edge, the top of the shock-absorbing base is movably sleeved with the bottom of the sound insulation box, and the bottom of the buffer pad is provided with anti-slip holes.

[0012] Optionally, an air outlet is fixedly connected to the front side of the sound insulation box, and the air outlet is connected to a fan.

[0013] The present invention provides a large-scale oxidation fan for flue gas desulfurization, which has the following beneficial effects:

[0014] 1. The large-scale oxidation fan for flue gas desulfurization sets a sound insulation box outside the driving motor and the fan, and uses the first sound insulation layer and the second sound insulation layer inside the sound insulation box to absorb and transform the noise generated by the driving motor and the fan, so as to avoid the noise generated by the driving motor and the fan from being transmitted to the outside of the sound insulation box, thereby effectively reducing the impact of the noise generated by the driving motor and the fan on the surrounding environment.

[0015] 2. The large-scale oxidation fan for flue gas desulfurization is provided with an air intake silencer, and the through holes on the surface of the air intake silencer are used to divide the incoming air into small air streams. When the noise passes through the through holes, the component of the paint spraying noise will be significantly reduced, thereby reducing the possibility of noise propagation. At the same time, the porous plate inside the air intake silencer is used to gradually block the noise, gradually consume the energy of the noise, and prevent the noise inside the soundproof box from propagating from the air intake silencer. By arranging an air outlet silencer on the top of the soundproof box, the heat dissipation fan at the bottom of the air outlet silencer is used to discharge the air inside the soundproof box, thereby accelerating the air flow inside the soundproof box, which is beneficial to reducing the temperature generated when the drive motor is working and ensuring the normal operation of the drive motor.

[0016] 3. The large-scale oxidation fan for flue gas desulfurization has a silencer filter and a silencer bowl arranged inside the outlet silencer. The silencer filter uses the principle of small hole silencer to divide the total airflow into many small airflows to reduce the noise component, while the silencer bowl can make the passing airflow expand continuously, and each expansion consumes a part of energy, thereby achieving the effect of noise reduction. A shock-absorbing spring is arranged at the bottom of the soundproof box, and the shock-absorbing spring is used to buffer between the soundproof box and the shock-absorbing base, which can slow down the propagation of vibration to the ground, avoid displacement between the shock-absorbing base and the ground due to vibration, and improve the stability of the soundproof box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of a half-section of the air intake muffler of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of a half-section of the air outlet silencer of the present invention;

[0020] Figure 4 It is a structural schematic diagram of another angle of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the first sound insulation layer of the present invention.

[0022] In the figure: 1. support base; 2. drive motor; 3. fan; 4. air inlet; 5. sound insulation box; 6. first sound insulation layer; 61. calcium silicate board; 62. damping material; 7. second sound insulation layer; 8. air intake silencer; 9. through hole; 10. porous plate; 11. air outlet silencer; 12. fixing bracket; 13. heat dissipation fan; 14. silencer filter element; 15. silencer bowl; 16. shock-absorbing spring; 17. shock-absorbing base; 18. buffer pad; 19. anti-slip hole; 20. air outlet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figures 1 to 5The present invention provides a technical solution: a large-scale oxidation fan for flue gas desulfurization, comprising a support base 1, a driving motor 2 is fixedly installed on the top of the support base 1, a fan 3 is fixedly connected to the left side of the support base 1, the driving motor 2 is transmission-connected to the fan 3, an air inlet 4 is fixedly connected to the left side of the fan 3, the air inlet 4 extends to the left side of a sound insulation box 5, a sound insulation box 5 is arranged outside the driving motor 2, a first sound insulation layer 6 and a second sound insulation layer 7 are fixedly installed inside the sound insulation box 5, by arranging the sound insulation box 5 outside the driving motor 2 and the fan 3, the first sound insulation layer 6 and the second sound insulation layer 7 inside the sound insulation box 5 are used to absorb and transform the noise emitted by the driving motor 2 and the fan 3, so as to prevent the noise emitted by the driving motor 2 and the fan 3 from being transmitted to the outside of the sound insulation box 5, The effect of the noise generated by the driving motor 2 and the fan 3 on the surrounding environment is effectively reduced. The first sound insulation layer 6 is a damping sound insulation board. The first sound insulation layer 6 includes a calcium silicate board 61 and a damping material 62. There are two calcium silicate boards 61 and they are clamped on both sides of the damping material 62. The second sound insulation layer 7 is made of polyester fiber cotton material. The interior of the second sound insulation layer 7 is a porous structure. The right side of the support seat 1 is fixedly connected with an intake muffler 8. By setting the intake muffler 8, the through holes 9 on the surface of the intake muffler 8 are used to divide the incoming air into small air streams. When the noise passes through the through holes 9, the component of the paint spraying noise will be significantly reduced, thereby reducing the possibility of noise propagation. At the same time, the porous plate 10 inside the intake muffler 8 is used to gradually block the noise and gradually consume it. The energy of noise is prevented, and the noise inside the soundproof box 5 is prevented from being transmitted from the air intake silencer 8. The shape of the air intake silencer 8 is cylindrical, and a through hole 9 is opened on the surface of the air intake silencer 8. The inside of the air intake silencer 8 is fixedly connected with a porous plate 10, and the porous plates 10 are arranged in rows at equal intervals. The top of the support seat 1 is fixedly connected with an air outlet silencer 11, and the bottom of the air outlet silencer 11 is fixedly connected with a fixed bracket 12. The top of the fixed bracket 12 is fixedly installed with a heat dissipation fan 13. By arranging the air outlet silencer 11 on the top of the soundproof box 5, the heat dissipation fan 13 at the bottom of the air outlet silencer 11 is used to discharge the air inside the soundproof box 5, so as to accelerate the air flow inside the soundproof box 5, which is beneficial to reduce the temperature generated when the drive motor 2 is working, and ensures the drive motor 2. In normal operation, a silencer filter element 14 is fixedly installed inside the outlet silencer 11, and small holes are opened on the outer surface of the silencer filter element 14. A silencer bowl 15 is arranged on the top of the silencer filter element 14. The silencer bowl 15 is fixedly installed inside the outlet silencer 11, and the silencer bowl 15 is in the shape of a trumpet. By arranging the silencer filter element 14 and the silencer bowl 15 inside the outlet silencer 11, the silencer filter element 14 utilizes the principle of small hole silencer to divide the total airflow into many small airflows, thereby reducing the noise component, and the silencer bowl 15 can make the passing airflow expand continuously, and each expansion consumes a part of energy, thereby achieving the effect of noise reduction. A shock absorbing spring 16 is fixedly connected to the bottom of the support seat 1, and a shock absorbing base 17 is fixedly connected to the bottom of the shock absorbing spring 16.The bottom of the shock-absorbing base 17 is fixedly connected with a buffer pad 18, the top of the shock-absorbing base 17 is fixedly connected with a surrounding edge, and the top of the shock-absorbing base 17 is movably connected with the bottom of the sound insulation box 5. By arranging a shock-absorbing spring 16 at the bottom of the sound insulation box 5, the shock-absorbing spring 16 is used to buffer between the sound insulation box 5 and the shock-absorbing base 17, which can slow down the propagation of vibration to the ground, avoid displacement between the shock-absorbing base 17 and the ground due to vibration, and improve the stability of the sound insulation box 5. The bottom of the buffer pad 18 is provided with an anti-slip hole 19, and the front of the sound insulation box 5 is fixedly connected with an air outlet 20, and the air outlet 20 is connected to the fan 3.

[0025] In summary, when the large-scale oxidation fan for flue gas desulfurization is in use, the fan 3 is driven to rotate by the driving motor 2 to deliver oxygen to the flue gas desulfurization equipment. When the driving motor 2 generates noise, the noise is absorbed and isolated by the first sound insulation layer 6 and the second sound insulation layer 7 to prevent the noise from propagating to the outside. At the same time, the heat dissipation fan 13 discharges the air inside the sound insulation box 5 to dissipate the heat of the driving motor 2. The air intake muffler 8 and the air outlet muffler 11 are used to isolate the noise to prevent the noise from propagating from the air intake muffler 8 and the air outlet muffler 11. When the sound insulation box 5 vibrates, the deformation of the shock-absorbing spring 16 can slow down the propagation of the vibration to the ground.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-scale oxidation fan for flue gas desulfurization, comprising a support base (1), characterized in that: A driving motor (2) is fixedly mounted on the top of the support seat (1); a sound insulation box (5) is arranged outside the driving motor (2); a first sound insulation layer (6) and a second sound insulation layer (7) are fixedly mounted inside the sound insulation box (5); an air intake silencer (8) is fixedly connected to the right side of the support seat (1); an air outlet silencer (11) is fixedly connected to the top of the support seat (1); a fixed bracket (12) is fixedly connected to the bottom of the air outlet silencer (11); a heat dissipation fan (13) is fixedly mounted on the top of the fixed bracket (12); a shock absorbing spring (16) is fixedly connected to the bottom of the shock absorbing spring (16); a shock absorbing base (17) is fixedly connected to the bottom of the shock absorbing base (17); a buffer pad (18) is fixedly connected to the bottom of the shock absorbing base (17).

2. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: The left side of the support base (1) is fixedly connected to a fan (3), the drive motor (2) is transmission-connected to the fan (3), the left side of the fan (3) is fixedly connected to an air inlet (4), and the air inlet (4) extends to the left side of the soundproof box (5).

3. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: The first sound insulation layer (6) is a damping sound insulation board, and the first sound insulation layer (6) comprises a calcium silicate board (61) and a damping material (62). There are two calcium silicate boards (61) and they are sandwiched on both sides of the damping material (62).

4. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: The second sound insulation layer (7) is made of polyester fiber cotton material, and the interior of the second sound insulation layer (7) is a porous structure.

5. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: The air intake silencer (8) is cylindrical in shape, a through hole (9) is provided on the surface of the air intake silencer (8), a porous plate (10) is fixedly connected to the interior of the air intake silencer (8), and the porous plates (10) are arranged in rows at equal intervals.

6. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: A silencer filter element (14) is fixedly installed inside the outlet silencer (11), and small holes are provided on the outer surface of the silencer filter element (14). A silencer bowl (15) is arranged on the top of the silencer filter element (14), and the silencer bowl (15) is fixedly installed inside the outlet silencer (11), and the silencer bowl (15) is in the shape of a bell mouth.

7. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: The top of the shock-absorbing base (17) is fixedly connected with a surrounding edge, the top of the shock-absorbing base (17) is movably sleeved with the bottom of the sound insulation box (5), and the bottom of the buffer pad (18) is provided with an anti-slip hole (19).

8. A large-scale oxidation blower for flue gas desulfurization according to claim 1, characterized in that: An air outlet (20) is fixedly connected to the front side of the soundproof box (5), and the air outlet (20) is in communication with the fan (3).

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