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CN-224214320-U - Composite muffler for reciprocating piston compressor

CN224214320UCN 224214320 UCN224214320 UCN 224214320UCN-224214320-U

Abstract

The utility model discloses a compound muffler for a reciprocating piston compressor, which comprises a silencing mechanism which is communicated and installed between two air ports of a Y-shaped piston cylinder of the reciprocating piston compressor, wherein the silencing mechanism comprises a vent pipe which is communicated and installed at one end of the air ports of the two Y-shaped piston cylinders, the two vent pipes are both in a U-shaped bent coil shape, and an expansion tank is sleeved on the outer surface of the vent pipe at the bent coil end. The utility model effectively reduces noise pollution when the compressor runs through the intervention of the silencing mechanism, not only improves working environment and reduces harm to hearing and physical and mental health of operators, but also ensures that the compressor can be suitable for places with higher noise requirements such as hospitals, schools and offices, and the like, and remarkably expands the application range of equipment.

Inventors

  • XU YANG
  • TANG HONG

Assignees

  • 江阴市科益压缩机有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (4)

  1. 1. The composite muffler for the reciprocating piston compressor is characterized by comprising a silencing mechanism (2) which is communicated between two air ports (102) of a Y-shaped piston cylinder (101) of the reciprocating piston compressor (1), wherein the silencing mechanism (2) comprises a vent pipe (201), the vent pipe (201) is communicated with one end of the air ports (102) of the two Y-shaped piston cylinders (101), the two vent pipes (201) are in a U-shaped curved roll shape, and an expansion tank (202) is sleeved on the outer surface of the vent pipe (201) at the curved roll end; A partition plate (204) is fixedly arranged in the expansion tank (202), the partition plate (204) can divide the bent end of the U-shaped vent pipe (201) into two chambers, a plurality of sound absorbing cottons (203) are fixedly arranged at two ends of the partition plate (204), and the sound absorbing cottons (203) are fixedly arranged on the inner ring surface of the expansion tank (202) at equal intervals; the vent pipes (201) in the expansion tank (202) are all penetrated by the sound absorbing cotton (203) to divide the expansion tank into a plurality of sections, the outer surfaces of the vent pipes (201) of each section are provided with air holes (205), the separated vent pipes (201) can discharge compressed gas through the air holes (205) formed in the outer surfaces, and the compressed gas enters the other section through the sound absorbing cotton (203), so that an expansion cavity is formed between the vent pipes (201) and the expansion tank (202).
  2. 2. The composite muffler for a reciprocating piston compressor as claimed in claim 1, wherein a spacer ring (207) is fixedly installed in the breather pipe (201) of each segment.
  3. 3. The composite muffler for the reciprocating piston compressor of claim 2, wherein square pipes (206) are installed between the other ends of the two ventilation pipes (201) in a communicating manner, two outer plates (211) and one inner plate (208) are fixedly installed in the square pipes (206), the inner plate (208) is located between the two outer plates (211), two resistive sound channels (209) are formed between the two outer plates (211) and the inner plate (208), and an air duct (210) is communicated between the two resistive sound channels (209), and the air duct (210) is communicated with a storage tank of the reciprocating piston compressor (1).
  4. 4. The composite muffler for a reciprocating piston compressor as claimed in any one of claims 1 to 3, wherein the pipe wall material of the breather pipe (201) is a porous metal composite material, the porosity of the porous metal composite material is 30% -50%, and the pore size distribution is in the range of 50-100 μm.

Description

Composite muffler for reciprocating piston compressor Technical Field The utility model relates to the technical field of reciprocating piston compressors, in particular to a compound muffler for a reciprocating piston compressor. Background The reciprocating piston compressor compresses and conveys gas by reciprocating the piston in the cylinder, and generates large noise in the working process, and the noise can disturb the life, study and work of people. Therefore, it is necessary to mute noise generated during the operation of the reciprocating piston compressor. For example, chinese patent with publication number CN221003046U discloses that the piston type air compressor comprises a base plate, the top swing joint of bottom plate has the compression pump, the equal fixedly connected with universal wheel in four corners of bottom plate bottom, the left side fixedly connected with motor body at the top of the individual piece of air compressor, the right side fixedly connected with piston body at the top of the individual piece of air compressor, the front side on the right side of compression pump and the equal fixedly connected with connecting block of rear side, the equal fixedly connected with coupling shell on the right side of two connecting blocks. The utility model has the advantages that the piston compression type air compressor is simple in structure, stable, reliable, convenient to maintain and the like through the matched use of the air compressor, the compression pump, the motor body and the piston body, and the buffer function is realized when the air compressor works through the matched use of the first buffer spring and the second buffer spring in the buffer part. However, the piston air compressor generates larger noise in the process of exhausting the compressed air cylinder from the piston cylinder, the working environment becomes noisy due to the larger noise, the hearing of people can be damaged after the air cylinder is in the environment for a long time, other health problems such as headache, fatigue, poor attention and the like can be possibly caused, and further the working efficiency and the quality can be reduced. Disclosure of utility model The present utility model is directed to providing a compound muffler for a reciprocating piston compressor to solve the problems set forth in the background art described above. In order to achieve the above purpose, the present utility model provides the following technical solutions: The composite muffler for the reciprocating piston compressor comprises a silencing mechanism which is communicated and installed between two air ports of a Y-shaped piston cylinder of the reciprocating piston compressor, wherein the silencing mechanism comprises a vent pipe which is communicated and installed at one end of the air ports of the two Y-shaped piston cylinders, the two vent pipes are all in a U-shaped bent roll shape, and an expansion tank is sleeved on the outer surface of the vent pipe at the bent roll end. Preferably, the expansion tank is internally and fixedly provided with a partition plate, the curved end of the U-shaped vent pipe can be divided into two chambers by the partition plate, a plurality of sound absorbing cottons are fixedly arranged at the two ends of the partition plate, and the sound absorbing cottons are fixedly arranged on the inner ring surface of the expansion tank at equal intervals. Preferably, the vent pipe in the expansion tank is penetrated by the sound-absorbing cotton to divide the expansion tank into a plurality of sections, the outer surface of the vent pipe of each section is provided with air holes, the blocked vent pipe can discharge compressed gas through the air holes formed in the outer surface, and the compressed gas enters the other section through the sound-absorbing cotton, so that an expansion cavity is formed between the vent pipe and the expansion tank. Preferably, a spacing ring is fixedly arranged in each segment of the vent pipe. Preferably, a square tube is arranged between the other ends of the two vent tubes in a communicating manner, two outer plates and an inner plate are fixedly arranged in the square tube, the inner plate is arranged between the two outer plates, so that two resistive acoustic channels are formed between the two outer plates and the inner plate, an air duct is communicated between the two resistive acoustic channels, and the air duct is communicated with a storage tank of the reciprocating piston compressor. Preferably, the pipe wall material of the ventilation pipe is a porous metal composite material, the porosity of the porous metal composite material is 30% -50%, the pore diameter is distributed in the range of 50-100 mu m, and the porous metal composite material can form a scattering absorption effect on high-frequency noise. Compared with the prior art, the utility model has the beneficial effects that: A Y-shaped piston cylinder of a reciprocating piston compres