Exhaust silencer used for eliminating intermittent pulse airflow noise
An exhaust muffler and pulsed airflow technology, which is applied in the field of shock gas silencing, can solve the problems of increased overall volume, complex structure, and increased production cost of the muffler, and achieve the effects of simplifying the structure, improving the silencing effect, and reducing the volume
Pending Publication Date: 2018-01-23
CHINA TOBACCO HENAN IND
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Problems solved by technology
However, setting the exhaust port protrudingly on the outer pipe will increase the overall volume of the muffler, and the overall structure will introduce more components, making the structure complex and increasing production costs
In addition, there is no airflow retarder on the walls of the above-mentioned inner and outer pipes, which is not conducive to reducing the impact energy of the airflow, therefore, the noise reduction effect is not significant
Method used
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[0027] In order to make the technical purpose, technical solution and beneficial effect of the present invention clearer, the technical solution of the present invention will be further described below in conjunction with the drawings and specific embodiments.
[0028] Such as figure 1 As shown, the exhaust muffler includes a base 1 , an inner pipe 2 , a partial pressure vortex cover 3 and an outer pipe 4 . Such as figure 2 and image 3 As shown, the lower end of the inner tube 2 is coaxially threaded at the center of the base 1; both the inner tube 2 and the outer tube 4 have a cylindrical cavity structure, and the inner tube 2 is coaxially installed inside the outer tube 4, and the inner tube 2 There is a certain interval between the upper end and the partial pressure vortex cover 3; the lower end and the upper end of the outer tube 4 are screwed to the base 1 and the partial pressure vortex cover 3 respectively. The sound-absorbing chamber of the exhaust muffler include...
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The invention provides an exhaust silencer used for eliminating intermittent pulse airflow noise, and belongs to the technical field of impact gas silencing. The exhaust silencer comprises a base, a partial pressure eddy-current hood, an inner tube and an outer tube, and the inner tube and the outer tube are each of a cylindrical cavity structure. The exhaust silencer is characterized in that thelower end part and the upper end part of the outer tube are correspondingly connected with the base and the partial pressure eddy-current hood; the lower end part of the inner tube is coaxially connected to the center of the base, and the inner tube is coaxially loaded into the outer tube; the upper end part of the inner tube is spaced at a certain distance from the bottom of the partial pressureeddy-current hood; an up-down penetrating silencing inner cavity is formed in the inner tube, and a silencing outer cavity is formed by the inner tube and the outer tube; the exhaust silencer furthercomprises an air inlet and a first exhaust pressure-releasing hole, wherein the air inlet is formed in the lower end part of the inner tube, and the first exhaust pressure-releasing hole is formed inthe base; and after air enters the silencing inner cavity from the air inlet and is guided to the silencing outer cavity by the partial pressure eddy-current hood, the air is discharged through the first exhaust pressure-releasing hole. The exhaust silencer is simple in structure, small in size and remarkable in silencing effect.
Description
technical field [0001] The invention belongs to the technical field of impact gas silencing, and in particular relates to an exhaust silencing device for silencing the noise generated when the Armstrong PT312CV condensate automatic recovery pump releases low-flow, intermittent pulse high-pressure steam when it is emptied device. Background technique [0002] In industrial production, the noise generated by equipment exhaust is often greater than 90db. These noises will hinder people's normal rest, life and work, and more seriously, they will endanger people's health. Therefore, mufflers are usually installed on the exhaust equipment to eliminate noise. [0003] Most of the existing steam mufflers on the market are designed to eliminate the noise generated when the pressure vessel continuously discharges steam at a large flow rate, while the Armstrong PT312CV condensate automatic recovery pump is designed for pulse intermittent exhaust, exhaust The air flow is not large, an...
Claims
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IPC IPC(8): F04C29/06
Inventor 王文辉唐克争孙轶峰王维尚马书和赵振江谢滨贾亚勇魏志峰王胜李垠博郧力献邱宗鹤张萍陈建中袁跃红
Owner CHINA TOBACCO HENAN IND