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Mechanical pump noise reducing device

A mechanical pump and noise reduction technology, applied in mechanical equipment, components of pumping devices for elastic fluids, pump components, etc., can solve problems such as secondary noise pollution, and achieve the effect of optimization.

Active Publication Date: 2017-06-30
上海海科谱研仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a mechanical pump noise reduction device for solving the problem of secondary noise pollution caused by the installation of fans in existing mechanical pumps

Method used

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  • Mechanical pump noise reducing device

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Effect test

Embodiment 1

[0080] Such as figure 1 As shown, this embodiment provides a mechanical pump noise reduction device for performing noise reduction processing on the mechanical pump 1 therein, and the noise reduction device includes:

[0081] The first housing, the first housing 4 is respectively provided with an air inlet port 5 and an air outlet port 6 connected to the air inlet pipeline 2 and the air outlet pipeline 3 of the mechanical pump 1, and respectively opened on the first housing 4. an air inlet and an air outlet on two opposite side walls of the casing 4;

[0082] The first sound-absorbing foam 7 provided on the inner surface of the first shell 4;

[0083] An air inlet fan 8 installed at the air inlet;

[0084] The air inlet secondary muffler cover 9 wrapping the air inlet fan 8, wherein, the air inlet secondary muffler cover 9 is provided with an air inlet channel 93;

[0085] An air outlet fan 10 installed at the air outlet; and

[0086] The air outlet secondary muffler cover...

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Abstract

The invention provides a mechanical pump noise reducing device for reducing noise of a mechanical pump therein. The device comprises a first shell, a first silencing foam, an intake port fan, an intake port secondary silencing cover, an exhaust port fan, and an exhaust port secondary silencing cover, wherein the first shell is respectively provided with an intake joint and an exhaust joint connected with an intake pipeline and an exhaust pipeline of the mechanical pump, and an intake port and an exhaust port respectively formed in two opposite side walls of the first shell; the first silencing foam is arranged on the inner surface of the first shell; the intake port fan is mounted in the intake port; the intake port secondary silencing cover wraps the intake port fan, and is provided with an intake channel; the exhaust port fan is mounted in the exhaust port; and the exhaust port secondary silencing cover wraps the exhaust port fan, and is provided with an exhaust channel. The mechanical pump noise reducing device solves the problem of secondary noise pollution generated by installation of the fan in a traditional mechanical pump.

Description

technical field [0001] The invention relates to the field of mechanical equipment manufacturing, in particular to a noise reduction device for a mechanical pump. Background technique [0002] Mechanical pumps, especially rotary vane oil pumps, are commonly used air extraction equipment in vacuum obtaining equipment. They are usually used as the first stage of vacuum obtaining equipment (1-100Pa), or as the front stage of high vacuum obtaining equipment such as turbomolecular pumps. pump used. In recent years, with the development of mechanical pump technology, more and more mechanical pumps will consider their own noise when designing, and try to avoid the noise of mechanical pumps as much as possible. [0003] However, due to the working principle of the mechanical oil pump, the vacuuming of the oil pump is to use the high-speed rotating scraper to squeeze the gas and discharge the gas at the inlet end from the outlet end. It is inevitable that the rotary blade will rub an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/06
CPCF04C29/063
Inventor 贾滨贾善余
Owner 上海海科谱研仪器有限公司
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