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Air suction silencer

A muffler and air chamber technology, which is applied in the field of mufflers, can solve problems such as unsatisfactory muffler effects, achieve good muffler effects, eliminate noise, and avoid aggregation

Active Publication Date: 2014-02-19
HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a suction muffler with good noise reduction effect and compact structure in order to overcome the problem of unsatisfactory noise reduction effect in the compressor suction muffler in the prior art

Method used

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  • Air suction silencer
  • Air suction silencer
  • Air suction silencer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: as figure 1 , figure 2As shown, a suction muffler includes a muffler housing. The muffler housing includes a muffler body 1 with an upper end opening, an upper cover 3 with a lower end opening, a second partition 2 arranged at the upper port of the muffler body and a first partition 7 arranged in the muffler body below the second partition . The inner edge of the upper port of the muffler body 1 is provided with an annular concave step. The second partition 2 is arranged in the annular recessed step, and the second partition is provided with a downwardly depressed sunken groove. The first partition 7 is arranged vertically, and the first partition and the second partition are integrally formed. Slots 8 for inserting a first baffle are respectively provided on opposite side surfaces and a bottom surface of the muffler body 1 , and the first baffle is inserted in the slot. The lower end of the upper cover is buckled on the upper port of the muffler bod...

Embodiment 2

[0040] Embodiment 2: the remaining structure of this embodiment is with reference to embodiment 1, and its difference is:

[0041] Such as Figure 5 As shown, a support plate 23 is provided on the inner wall of the lower left air chamber 12a near the air inlet. The surface of the support plate faces the air inlet 10 , and the support plate is provided with a first air hole 24 facing the air inlet 10 . The second vent hole 29 and the third vent hole 17 connecting the left lower air chamber 12 a and the right lower air chamber 12 b are provided on the first partition 7 , and the second vent hole is opposite to the first vent hole. The cross-sections of the first ventilation hole, the second ventilation hole and the third ventilation hole are all circular. The first air hole 24 and the second air hole 29 are respectively provided with electromagnetic switch valves or electric switch valves for controlling the opening and closing of the air holes. The electromagnetic switch val...

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Abstract

The invention discloses an air suction silencer which comprises a silencer shell. An upper air chamber and a lower air chamber are arranged in the silencer shell, and the lower air chamber is divided into a left lower air chamber and a right lower air chamber by a first partition plate; an air inlet and an exhaust port are formed in side surfaces of the silencer shell, the air inlet is communicated with the left lower air chamber, and the exhaust port is communicated with the upper air chamber; the left lower air chamber is communicated with the right lower air chamber via a first ventilating pipeline, and a port of the first ventilating pipeline extends into the left lower air chamber and faces the air inlet; the right lower air chamber is communicated with the upper air chamber via a second ventilating pipeline. The air suction silencer has the advantages that noise at different frequencies can be effectively eliminated by the aid of the air suction silencer, and the air suction silencer is good in silencing effect and compact in structure.

Description

[0001] technical field [0002] The invention relates to a muffler, in particular to a suction muffler applied to a compressor. Background technique [0003] Noise has been regarded as one of the serious pollution in the world today, and the noise problem of the compressor has become an important indicator to measure its comprehensive performance. The main noise source of the compressor is composed of three parts: the aerodynamic noise radiated by the intake and exhaust, the mechanical noise generated by the mechanical moving parts, and the noise of the driving motor; and the exhaust noise is weaker than the intake noise, so the aerodynamic performance of the compressor The noise is generally dominated by intake noise. [0004] At present, compressors usually reduce noise by setting intake and exhaust mufflers, and the muffler in the compressor is generally a resistive muffler; it causes a change in impedance during sound propagation through a sudden change in the cross sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00
Inventor 张云
Owner HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD
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