Wet type exhaust silencer

An exhaust muffler and muffler technology, applied in the direction of muffler device, exhaust device, machine/engine, etc., can solve the problems of cooling the exhaust connecting pipe after the diesel engine vortex, the noise reduction effect is not obvious, etc., and achieve the effect of noise reduction and cooling Significant, noise reduction, simple and compact effect

Inactive Publication Date: 2016-11-09
GUANGDONG XINCHUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cooling and noise reduction effect of the exhaust connecting pipe behind the vortex of the diesel engine with this wet water jacket structure is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] One of the embodiments of a wet exhaust muffler of the present invention, such as figure 1 , figure 2 and image 3 As shown, it includes a muffler main body 1 and a muffler shell 2. The muffler shell 2 covers the muffler main body 1 to form an annular jacket tube cavity 7. The muffler shell 2 is provided with a cooling water inlet joint 5. The muffler main body 1 is located at Water spray holes 6 are distributed in the circumferential direction of the pipe wall of the annular jacket lumen 7 .

[0042] The diameter of the tail gas passage 8 of the muffler main body 1 is larger than the diameter of the air inlet, so that the tail gas is expanded and the noise is effectively reduced. At the same time, the water spray hole 6 sprays a small water column into the exhaust passage 8 of the muffler main body 1, forming a water curtain inside the muffler main body 1, increasing the contact area and heat exchange time between the high-temperature gas and the water curtain, and ...

Embodiment 2

[0046] One of the embodiments of a wet exhaust muffler of the present invention, such asfigure 1 , figure 2 with image 3 As shown, the main technical solution of this embodiment 2 is basically the same as that of embodiment 1, and the features not explained in this embodiment 2 are explained in embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is that: the water spray holes 6 are arranged continuously to form water spray gaps. The water spray hole 6 is further deformed to be set as a continuous water spray slit, and the water spray slit can be one continuous one, or can be set as a plurality of continuous water spray slits in sections.

Embodiment 3

[0048] One of the embodiments of a wet exhaust muffler of the present invention, such as figure 1 , figure 2 with image 3 As shown, the main technical scheme of this embodiment 3 is basically the same as that of embodiment 1 or embodiment 2, and the features that are not explained in this embodiment 3 adopt the explanations in embodiment 1 or embodiment 2, and are not repeated here to repeat. The difference between Embodiment 3 and Embodiment 1 or Embodiment 2 is that the cooling water inlet joint 5 is arranged on the side close to the inlet of the exhaust pipe.

[0049] In this embodiment, the cooling water inlet joint 5 is eccentrically arranged on the muffler shell 2 . It is used to control the automatic rotation of the cooling water entering the annular jacket tube cavity 7 from the cooling water inlet joint 5, so as to improve the heat exchange efficiency.

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Abstract

A wet type exhaust silencer comprises a silencer body and a silencer shell; the silencer body is wrapped by the silencer shell to form an annular jacket pipe cavity; a cooling water inlet joint is arranged on the silencer shell, and water spraying holes are formed in the position, located on the pipe wall of the annular jacket pipe cavity, of the silencer body; according to the wet type exhaust silencer, the diameter of a tail gas way of the silencer body is larger than that of an air inlet, and therefore tail gas is expanded, and the noise is effectively lowered. Meanwhile, the water spraying holes spray small water columns to the interior of the tail gas way of the silencer body, a water curtain is formed in the silencer body, the contact area between high-temperature gas and the water curtain is increased, the heat exchange time of the high-temperature gas and the water curtain is prolonged, the inherent frequency of exhausted gas of a diesel engine is changed, and the effects of cooling and silencing are achieved; dust particles, sulfide and the like contained in gas can be effectively removed, and emissions of harmful gas to the atmosphere are avoided. The wet type exhaust silencer is particularly suitable for silencing and purification of tail gas of large internal combustion machines of luxury yachts, passenger ships, public service ships, cargo / passenger ferries and the like.

Description

technical field [0001] The invention relates to the technical field of airflow mufflers and exhaust devices for internal combustion engines, in particular to a wet exhaust muffler. Background technique [0002] The noise emitted by the internal combustion engine can be divided into mechanical noise, gas dynamic noise and combustion noise according to the sound source. The gas dynamic noise is mainly the exhaust noise of the internal combustion engine. Due to the periodic operation of the internal combustion engine, when the gas mixture of fuel and air is burned in the combustion chamber, a large amount of heat generated is mainly discharged with the exhaust gas. [0003] In the prior art, most of the mufflers installed on the exhaust system of the marine diesel engine are dry exhaust mufflers, and the exhaust gas of the diesel engine is discharged upward into the atmosphere through the dry exhaust muffler. Such as: [0004] Chinese invention patent application (application...

Claims

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Application Information

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IPC IPC(8): F01N13/00F01N3/04F01N3/08F01N1/00
CPCF01N13/004F01N1/00F01N3/04F01N3/08F01N13/007F01N2590/02
Inventor 黄孟光邵红正谭嘉鑫李昌锐
Owner GUANGDONG XINCHUAN HEAVY IND
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