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CN-224200732-U - Diesel generator with silencing device

CN224200732UCN 224200732 UCN224200732 UCN 224200732UCN-224200732-U

Abstract

The utility model discloses a diesel generator with a silencing device, which comprises a diesel generator main body, wherein a sound-proof cover component is arranged on an outer cover of the diesel generator main body, a sound-absorbing box is arranged at the tail end of an exhaust gas discharge pipeline of the diesel generator main body, a spiral pipe is arranged in a sound-absorbing cavity of the sound-absorbing box, the air inlet end of the spiral pipe is connected with the exhaust gas discharge pipeline, a plurality of air outlet holes are formed in the upper surface of the spiral pipe along the spiral direction, the air outlet holes are communicated with the sound-absorbing cavity of the sound-absorbing box, a sound-absorbing frame is arranged on the periphery of the spiral pipe, an oil-collecting box is fixedly arranged at the bottom of the sound-absorbing box, and the bottom of the spiral pipe is communicated with the inner cavity of the oil-collecting box. The utility model has the advantages and effects that the novel mechanical structure is utilized, and the multi-stage noise reduction and noise reduction device has the effects of improving the noise reduction performance and having the noise reduction and oil collection functions.

Inventors

  • LIU GUOZHUANG
  • XU HUJUN
  • Mou Xingcheng

Assignees

  • 慈溪市泓晟达发电机有限公司

Dates

Publication Date
20260505
Application Date
20250626

Claims (10)

  1. 1. The diesel generator with the silencing device comprises a diesel generator main body (1), wherein the diesel generator main body (1) is provided with a clean gas suction pipeline (11) and an exhaust gas discharge pipeline (12), and is characterized in that a sound-proof cover assembly (2) is arranged on the outer cover of the diesel generator main body (1), an air inlet (211) and an air outlet (212) are arranged on the sound-proof cover assembly (2), the air inlet (211) is communicated with the air inlet end of the clean gas suction pipeline (11), and a sound absorption box (3) is connected between the exhaust gas discharge pipeline (12) and the air outlet (212); The sound box (3) is provided with a sound absorbing cavity (31), an air inlet pipe (32) and an air outlet pipe (33), the air outlet end of the waste gas exhaust pipeline (12) is communicated with the sound absorbing cavity (31) through the air inlet pipe (32), the bottom of the sound absorbing cavity (31) is communicated with the air outlet (212) through the air outlet pipe (33), a spiral pipe (34) is arranged in the sound absorbing cavity (31), the air inlet end of the spiral pipe (34) is connected with the air inlet pipe (32), a plurality of air outlet holes (341) are formed in the upper surface of the spiral pipe (34) along the spiral direction, a sound absorbing frame (35) is arranged on the periphery of the spiral pipe (34), a plurality of through holes (351) are formed in the four side walls of the sound absorbing frame (35), the air inlet end of the air outlet pipe (33) is arranged outside the sound absorbing frame (35), and the bottom of the sound box (3) is fixedly provided with an oil collecting box (4), and the bottom of the spiral pipe (34) is communicated with the inner cavity of the oil collecting box (4).
  2. 2. A diesel generator with silencing device according to claim 1, characterized in that the spiral tube (34) is covered with at least one layer of spiral sound absorbing sleeve (36) made of flexible sound absorbing sponge material.
  3. 3. A diesel generator with silencing device according to claim 1, wherein the sound absorbing box (3) is provided with a baffle plate (37) at the periphery of the sound absorbing frame (35), the baffle plate (37) isolates the sound absorbing cavity (31) area outside the sound absorbing frame (35) to form a roundabout air channel (371), and the air inlet end of the air outlet pipe (33) is communicated with the tail end of the roundabout air channel (371).
  4. 4. A diesel generator with silencing device according to claim 3, characterized in that the side wall of the partition (37) extends obliquely with several silencing blocks (372) towards the detour air channel (371).
  5. 5. A diesel generator with silencing device according to claim 1, characterized in that the sound absorbing box (3) comprises a bottom shell (301) and a top cover (302), the top cover (302) and the bottom shell (301) are covered to form the sound absorbing cavity (31), and the top cover (302) is fastened on the bottom shell (301) through a screw lock.
  6. 6. The diesel generator with the silencing device according to claim 1, wherein an oil drain pipe (41) is arranged at the bottom of the oil collecting box (4), a liquid level alarm instrument (42) is arranged on the side portion of the oil collecting box (4), and an oil drain ball valve (43) is arranged on the oil drain pipe (41).
  7. 7. A diesel generator with silencing device according to claim 1, characterized in that the sound-proof housing assembly (2) comprises a fixed housing (21) and a movable cover (22), and the fixed housing (21) and the movable cover (22) are locked and fixed through a locking structure (23).
  8. 8. A diesel generator with silencing device as set forth in claim 7, wherein said fixed cover (21) has a mounting opening (213) corresponding to said movable cover (22), said mounting opening (213) has a sealing ring (214), a side projection of said sealing ring (214) has an L-shaped structure, and when said movable cover (22) is mounted on said mounting opening (213) of said fixed cover (21) in a locked manner, said movable cover (22) is in sealing engagement with said fixed cover (21) through said sealing ring (214).
  9. 9. A diesel generator with a silencing device as set forth in claim 1, wherein the sound-proof housing assembly (2) is provided with a silencing box (215) communicated with the air outlet end of the air outlet (212), sound-absorbing cotton is filled in the silencing box (215), and the silencing box (215) is provided with an air vent (2151) communicated with the air outlet (212).
  10. 10. A diesel generator with silencing device according to claim 1, characterized in that the exhaust gas outlet conduit (12) is provided with a primary composite filter device (121).

Description

Diesel generator with silencing device Technical Field The utility model relates to the technical field of diesel generators, in particular to a diesel generator with a silencing device. Background The diesel generator is a small-sized power generation device, and is a power machine which uses diesel oil and the like as fuel and uses a diesel engine as a prime motor to drive a generator to generate power. However, along with the popularization of the diesel generator, various problems are also brought, wherein in the power generation process of the diesel generator, the diesel generator can generate larger noise due to the mixed combustion process of diesel and air, the noise can be directly sent out through an exhaust gas discharge pipeline to cause noise pollution, and meanwhile, some oil stain dirt is mixed in tail gas, and the oil stain dirt can cause environmental pollution, so that improvement is needed. Disclosure of utility model The utility model aims to provide a diesel generator with a silencing device, which has the effects of multi-stage noise reduction, noise reduction improvement, noise reduction and oil collection. The diesel generator with the silencing device comprises a diesel generator main body, wherein the diesel generator main body is provided with a clean gas suction pipeline and an exhaust gas discharge pipeline, a sound-proof cover assembly is arranged on an outer cover of the diesel generator main body, an air inlet and an air outlet are arranged on the sound-proof cover assembly, the air inlet is communicated with an air inlet end of the clean gas suction pipeline, and a sound absorption box is connected between the exhaust gas discharge pipeline and the air outlet; The sound box is provided with a sound absorption cavity, an air inlet pipe and an air outlet pipe, the air outlet end of the waste gas exhaust pipeline is communicated with the sound absorption cavity through the air inlet pipe, the bottom of the sound absorption cavity is communicated with the air outlet through the air outlet pipe, a spiral pipe is arranged in the sound absorption cavity, the air inlet end of the spiral pipe is connected with the air inlet pipe, a plurality of air outlet holes are formed in the upper surface of the spiral pipe along the spiral direction, a sound absorption frame is arranged on the periphery of the spiral pipe, a plurality of through holes are formed in four side walls of the sound absorption frame, the air inlet end of the air outlet pipe is arranged outside the sound absorption frame, an oil collecting box is fixedly arranged at the bottom of the sound absorption box, and the bottom of the spiral pipe is communicated with the inner cavity of the oil collecting box. Through adopting above-mentioned technical scheme, noise and the tail gas that diesel generator main part produced can get into the spiral pipe of inhaling the sound box through exhaust emission pipeline and intake pipe during the use, the oil stain dirt can adhere on the inner wall of spiral pipe, finally form the fluid to slide along the inner tube wall of spiral pipe and collect in the oil collecting box, noise gets into the sound absorbing cavity that inhales the sound frame and is located in from the venthole of spiral pipe upper surface, noise is inhaled the sound absorbing cavity that the frame was outside of inhaling from the through-hole after inhaling the sound frame and is removed the noise once more, then follow the outlet duct and discharge, the diesel generator main part is built-in the sound proof housing subassembly during the use in addition, utilize the sound proof housing subassembly can keep apart the noise that diesel generator main part produced and realize the purpose of making an uproar, make the utility model have multistage noise reduction and promote the noise reduction performance, have the effect of making an uproar and collecting oil function of making an uproar concurrently. The utility model is further characterized in that at least one layer of spiral sound-absorbing sleeve made of flexible sound-absorbing sponge materials is coated outside the spiral tube. Through adopting above-mentioned technical scheme, the spiral that flexible sound sponge was inhaled and is made inhale the sound cover and can be overlapped on the outer wall of spiral pipe more easily, and the spiral is inhaled the sound cover simultaneously and can be adsorbed the noise reduction with venthole exhaust noise. The sound-absorbing box is further provided with a baffle plate at the periphery of the sound-absorbing frame, the baffle plate isolates a sound-absorbing cavity area outside the sound-absorbing frame to form a roundabout air passage, and the air inlet end of the air outlet pipe is communicated with the tail end of the roundabout air passage. Through adopting above-mentioned technical scheme, circuitous air flue can carry out multiple reflection to getting into its noise in to offset partial noise, final a smal