Silencer
A muffler and partition technology, applied in the direction of mufflers, machines/engines, non-variable pumps, etc., can solve the problems of large power loss, affecting the physical and mental health of construction workers on site, and poor muffler effect
Inactive Publication Date: 2008-10-08
常州风特安泵业有限公司
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Problems solved by technology
This type of muffler cannot meet the requirements of relevant domestic and foreign standards in harsh working conditions such as mines and underground, and the noise reduction effect is poor. For example, the "New Noise Control "Standard, it is stipulated that the contact noise of mines should be controlled below 85 decibels, but the existing mufflers cannot meet the requirements, which has seriously affected the physical and mental health of construction workers on site; in addition, the existing mufflers are prone to freezing and clogging when they are working. high power loss
Method used
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Embodiment Construction
[0016] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.
[0017] like figure 1 , 2 , 3, and 4, the first embodiment of the present invention, a muffler, includes a shell 6, a lower cover 8 with an air intake pipe 9, an upper cover 2 with an exhaust pipe 1 and an elbow 5, and an upper partition The plate 4 and the lower partition 7, the upper partition 4 and the lower partition 7 divide the inner cavity formed by the casing 6, the upper cover 2 and the lower cover 8 into an intake buffer chamber 10, an intermediate buffer chamber 11 and an exhaust buffer chamber 12 , the lower partition 7 has a through hole 7-1, the pin 5-1 of the elbow 5 is fixed at the through hole 7-1, and the air inlet 5-2 of the pin 5-1 is connected to the air intake buffer chamber 10 , the pipe body of the elbow 5 is located in the intermediate buffer chamber 11 and the pipe body has an exhaust hole 5-3, and the upper parti...
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The silencer for pneumatic machinery includes a casing, a low cover with air inlet pipe, an upper cover with air exhaust pipe and a bent pipe, as well as an upper partition board and a lower partition board to separate the cavity inside the casing into an inlet buffering room, a middle buffering room and an exhaust buffering room. The lower partition board has through hole; the bent pipe is fixed to the lower partition board and has inlet communicated to the inlet buffering room and exhaust hole in the pipe body inside the middle buffering room; and the upper partition board has through hole to communicate the middle buffering room and the exhaust buffering room. The present invention has high silencing effect, less jamming, low power consumption, simple structure and low manufacture cost.
Description
technical field [0001] The invention relates to a muffler capable of eliminating exhaust pulse kinetic energy. It is especially suitable for pneumatic equipment powered by compressed air, such as mine pneumatic submersible pumps. Background technique [0002] Existing mufflers for mine pneumatic equipment generally use small hole group exhaust silencing technology or expansion chamber silencing technology, or work on the principle of resistive and resistive composite silencing. This type of muffler cannot meet the requirements of relevant standards at home and abroad in harsh working conditions such as mines and underground, and the noise reduction effect is poor. For example, the "New Noise Control "Standard, it is stipulated that the mine contact noise should be controlled below 85 decibels, but the existing mufflers cannot meet the requirements, which has seriously affected the physical and mental health of construction workers on site; in addition, the existing mufflers...
Claims
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IPC IPC(8): F01N1/08F04D13/04
Inventor 窦振国
Owner 常州风特安泵业有限公司