External muffler for variable frequency generator set

Abstract

The invention relates to an external muffler for a variable frequency generator set. The external muffler for the variable frequency generator set comprises an outer sleeve; a front side baffle plate is arranged on one side of the outer sleeve, and a rear side baffle plate is arranged on the other side of the outer sleeve; a first separating plate, a second separating plate and a third separating plate are arranged in the outer sleeve; a first hole and a second hole are formed on the front side baffle plate; a third hole, a fourth hole, a fifth hole and a sixth hole are formed on the first separating plate; a seventh hole, an eighth hole, a ninth hole and a tenth hole are formed on the second separating plate; and an eleventh hole and a twelfth hole are formed on the third separating plate. The external muffler for the variable frequency generator set further comprises a muffler air inlet pipe and a muffler air outlet pipe, wherein the muffler air inlet pipe passes through the first hole and the third hole; the muffler air outlet pipe passes through the second hole, the fourth hole, the eighth hole and the eleventh hole; a first inner cavity circular pipe is arranged on the sixth hole; second inner cavity circular pipes are arranged on the fifth hole, the ninth hole and the twelfth hole; a third inner cavity circular pipe is arranged on the tenth hole; and the seventh hole is a through hole which is aligned with the third hole.

Description

technical field [0001] The invention relates to a variable frequency generating set, in particular to a noise reduction structure of the variable frequency generating set. Background technique [0002] As a kind of environmental pollution, noise pollution has become a great harm to human beings. Noise not only causes hearing loss and cardiovascular damage, but also affects sleep and psychology. How to reduce the noise of the generating set without losing the power of the generating set has always been a concern in the industry. [0003] Chinese Patent No. ZL201020565523.8 discloses a cooling system for a variable frequency generator set. [0004] This invention arranges the muffler under the cylinder head. This structure has the following disadvantages: First, due to this layout, the heat of the muffler is transferred to the cylinder head, causing the cylinder head to overheat, resulting in a decrease in power and service life; second, due to the limited space under the c...

AI Technical Summary

Problems solved by technology

This structure has the following disadvantages: First, due to this layout, the heat of the muffler is transferred to the cylinder head, causing the cylinder head to overheat, resulting in a decrease in power and service life; second, due to the limited space under the cylinder head, the volume of the muffler is relatively small. Poor noise cancellation

The third is that the air flow under the cylinder head is blocked due to the partial arrangement of the muffler under the cylinder head.

The heat of the cylinder head itself cannot be discharged in a timely and efficient manner

Images