A blower silencer box and its silencer method
A technology of silencer box and blower, which is applied in mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of motor temperature rise, high temperature, and the motor cannot dissipate heat normally, and achieve the effect of good noise reduction effect.
Active Publication Date: 2016-04-20
NANJING CIGU TECH CORP LTD
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Problems solved by technology
At the same time, when the blower needs to be emptied before reaching the rated air pressure, the bleed air at this time also enters the muffler chamber for silencing. It will enter the motor's hot air muffler cavity and then flow into the motor along the motor's hot air inlet pipe, and the temperature of the vented gas is high, causing the motor to not dissipate heat normally, and the temperature of the motor will rise
Method used
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[0028] Please refer to figure 1 and figure 2 As shown, the blower silencer box of the present invention includes a motor hot air silencer chamber 1, a vented silencer chamber 2, and an intermediate partition 5 separating the motor hot wind silencer chamber 1 from the vented silencer chamber 2. Wherein the bottom wall of the muffler box is provided with a motor hot air inlet duct 3 connected with the motor hot wind muffler chamber 1, and the front wall of the muffler box is provided with a venting air inlet 4 connected with the vented muffler chamber 2.
[0029] Please refer to Figure 3 to Figure 5 As shown, the motor hot air silencing cavity 1 includes three silencing curved plates that separate the inner space of the motor hot air silencing cavity 1, wherein the silencing curved plates here include the first silencing curved plate 6 and the second silencing curved plate 7 And the third sound-absorbing curved plate 8. Wherein the structure of the first sound-absorbing cur...
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The invention discloses a sound reducing enclosure of an air blower and a sound reducing method of the sound reducing enclosure of the air blower, and belongs to the field of air blowers. The sound reducing enclosure of the air blower comprises a motor hot-air sound reducing cavity, an evacuation sound reducing cavity and a middle partition plate for partitioning the motor hot-air sound reducing cavity and the evacuation sound reducing cavity. A motor hot-air inlet pipe communicated with the motor hot-air sound reducing cavity is arranged on the bottom wall of the sound reducing enclosure, and an evacuation air inlet communicated with the evacuation sound reducing cavity is formed in the front wall of the sound reducing box. When the sound reducing enclosure of the air blower is adopted, air flows through S-shaped flow passes when flowing in the motor hot-air sound reducing cavity and the evacuation sound reducing cavity, sound reducing cotton is pasted to the surfaces of the S-shaped flow passes, the cooling air enters a main machine to cool a stator, a rotor and the like, noise generated by the rotor can be outwards transmitted along a cooling air pipe and reflected in the S-shaped flow passes multiple times to be absorbed, and the good sound reducing effect is achieved.
Description
Technical field: [0001] The invention relates to a sound-absorbing box of a blower and a sound-silencing method thereof, belonging to the field of blowers. Background technique: [0002] Blowers are widely used in environmental protection, manufacturing industry and other industries, but when traditional blowers are running, the motor and impeller will generate a lot of noise. In the existing blowers, a sound-absorbing chamber is usually set in the sound-absorbing box, and the hot air from the motor enters Go to the silencer cavity for silence. At the same time, when the blower needs to be emptied before reaching the rated air pressure, the bleed air at this time also enters the muffler chamber for silencing. It will enter the motor's hot air muffler cavity and then flow into the motor along the motor's hot air inlet pipe, and the temperature of the vented gas is high, causing the motor to not dissipate heat normally, and the temperature of the motor will rise. [0003] Th...
Claims
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IPC IPC(8): F04D29/66
Inventor 许万华包金哲吴立华董继勇
Owner NANJING CIGU TECH CORP LTD