CN212563843U

CN212563843U - Composite pipeline silencer

Info

Publication number: CN212563843U
Application number: CN202021165835.XU
Authority: CN
Inventors: 邓敏; 杨向华
Original assignee: Chengdu Xinyizheng Environmental Protection Technology Co ltd
Current assignee: Chengdu Xinyizheng Environmental Protection Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-02-19
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to a composite pipe way silencer, include the bellows and install noise eliminator in the bellows, noise eliminator includes spring, noise elimination section of thick bamboo and amortization cotton, noise elimination section of thick bamboo one end is provided with the filter screen, the noise elimination section of thick bamboo other end is provided with cyclic annular baffle, the spring housing is established the noise elimination section of thick bamboo outside and with cyclic annular baffle one side is connected, the spring with the bellows joint, the cotton packing of noise elimination is in the noise elimination section of thick bamboo, still be provided with the impedance noise elimination pipe in the noise elimination section of thick bamboo. The utility model discloses be equipped with the spring outside the silencing tube cover, closely install the silencing tube in the bellows with the help of the characteristics that spring and bellows are each other harmonious, need not other connecting pieces, easy operation is convenient to still be provided with the amortization cotton and reduce the gas flow rate with the impedance silencing tube mutually supporting in the silencing tube, and then play good noise reduction effect.

Description

Composite pipeline silencer

Technical Field

The utility model relates to a silencer technical field especially relates to a compound pipeline silencer.

Background

Noise is a sound that is easily harmful to the physical and mental health of a user. In summer, people generally use an air conditioner or a fan to cool, the air flow speed in the air inlet and outlet pipes of the air conditioner and the fan is high, the noise is high, and the use of a user is influenced. In order to reduce the noise generated in the pipeline by the exhaust fan and other equipment gases, a muffler is generally installed in the pipeline. The existing exhaust pipe usually uses the corrugated pipe to exhaust, the corrugated pipe has unique structure, high strength and compression resistance and impact resistance, the silencer is usually directly pasted by using a sealant when being installed in the corrugated pipe, the silencer is used for a long time, and the silencer and the inner wall of the corrugated pipe are easily separated, so that the silencer cannot normally muffle.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a compound pipeline silencer to the inconvenient condition of silencer installation when using the bellows to exhaust to present, overlap at the silencing tube outside and be equipped with the spring, closely install the silencing tube in the bellows with the help of the characteristics that spring and bellows fit each other, need not other connecting pieces, easy operation is convenient to still be provided with the amortization cotton and reduce the gas velocity of flow with the impedance silencing tube is mutually supported in the silencing tube, and then play good noise reduction.

The utility model provides a composite pipeline silencer, includes the bellows and installs noise eliminator in the bellows, noise eliminator includes spring, noise elimination section of thick bamboo and amortization cotton, noise elimination section of thick bamboo one end is provided with the filter screen, the noise elimination section of thick bamboo other end is provided with cyclic annular baffle, the spring housing is established the noise elimination section of thick bamboo outside and with cyclic annular baffle one side is connected, the spring with the bellows joint, the cotton packing of noise elimination is in the noise elimination section of thick bamboo, still be provided with impedance noise elimination pipe in the noise elimination section of thick bamboo.

Preferably, a silencing sheet is arranged at one end of the impedance silencing pipe adjacent to the annular baffle, and a gap is formed between the silencing sheet and the inner wall of the impedance silencing pipe.

Preferably, the inner ring of the annular baffle is provided with a notch.

Preferably, the sound-damping cotton is centrifugal glass cotton.

The utility model discloses an useful part lies in: 1. the spring is sleeved outside the silencing barrel, and the silencing barrel is arranged in the corrugated pipe by utilizing the characteristic that the spring is meshed with the corrugated pipe, so that the silencing barrel is simple and convenient to install, does not need sealant and is convenient to disassemble and assemble; 2. in order to prevent the spring and the silencing barrel from falling off, an annular baffle is arranged on the silencing barrel and is used for being connected with the spring, and a notch is formed in the inner ring of the annular baffle, so that a worker can conveniently insert a tool into the notch to screw the silencing barrel into the corrugated pipe; 3. the silencing cotton and the impedance silencing pipe are arranged in the silencing tube, so that the good effect of reducing the gas flow velocity is achieved, and the noise is reduced.

Drawings

FIG. 1 is an exploded view of a composite pipe muffler according to one embodiment;

FIG. 2 is a schematic front view of the muffler assembly;

fig. 3 is a schematic sectional view taken along the line a-a in fig. 2.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a composite pipeline muffler comprises a corrugated pipe 1 and a muffler device 2 installed on the corrugated pipe 1, wherein the muffler device 2 comprises a spring 21, a muffling cylinder 22 and muffling cotton 23, one end of the muffling cylinder 22 is provided with a filter screen 221, the other end of the muffling cylinder 22 is provided with an annular baffle 222, the spring 21 is sleeved on the outer side of the muffling cylinder 22 and is connected with one side of the annular baffle 222, the spring 21 is clamped with the corrugated pipe 1, the muffling cotton 23 is filled in the muffling cylinder 22, and an impedance muffling pipe 223 is further arranged in the muffling cylinder 22. Specifically, in this embodiment, during installation, the spring 21 is first sleeved on the outer side of the muffling cylinder 22, and the joint between the spring 21 and the annular baffle 222 is welded to prevent the spring 21 from falling off from the muffling cylinder 22. During installation, a worker can directly screw the silencing tube 22 with the spring 21 into the corrugated pipe 1 without filling sealant, the time is long, and the silencing tube 22 is convenient to disassemble and replace the silencing cotton 23 in the silencing tube. The silencing cotton 23 is filled in the silencing tube 22, and when gas enters the silencing tube 22 through the filter screen 221, the gas collides with the silencing cotton 23, so that the flow rate of the gas in the corrugated pipe 1 is reduced, and the purpose of reducing noise is achieved. Further, in order to improve the noise reduction effect, an impedance muffling tube 223 is further arranged in the muffling cylinder 22, and the impedance muffling tube 223 is installed on one side close to the annular baffle 222, namely, at the outlet of the gas, so that the effect of blocking is achieved, the gas stays in the muffling cylinder 22 for a longer time, the gas is in contact with the muffling cotton 23 for a longer time, and the noise reduction effect is better.

As shown in fig. 3, a noise reduction sheet 224 is provided in one end of the impedance noise reduction pipe 223 adjacent to the annular baffle 222, and a gap is provided between the noise reduction sheet 224 and the inner wall of the impedance noise reduction pipe 223. Specifically, the noise reduction sheet 224 is a silica gel sheet, and the material is softer, further plays the effect that reduces the gas flow rate, and the gas flow rate reduces, and the noise of its production can reduce.

As shown in fig. 2 to 3, the inner ring of the annular baffle 222 is provided with a notch 2221. Specifically, the notch 2221 is formed in the inner ring of the annular baffle 222, so that a user can insert a tool such as a pick into the notch 2221 to screw the entire muffling cylinder 22 into the bellows 1, which is very simple to operate.

As shown in fig. 1, the sound-deadening cotton 23 is centrifugal glass cotton. Specifically, a large number of tiny holes communicated with the outside are formed in the centrifugal glass wool, when sound waves are in contact with the centrifugal glass wool, the sound waves enter the centrifugal glass wool along the holes to cause air molecules to vibrate, and the air molecules and the holes are in clearance friction, so that sound energy is converted into heat energy and is lost, and the sound absorption step is completed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A compound pipeline silencer which is characterized in that: the silencer comprises a corrugated pipe and a silencer arranged in the corrugated pipe, wherein the silencer comprises a spring, a silencing barrel and silencing cotton, a filter screen is arranged at one end of the silencing barrel, an annular baffle is arranged at the other end of the silencing barrel, the spring is sleeved on the outer side of the silencing barrel and connected with one side of the annular baffle, the spring is clamped with the corrugated pipe, the silencing cotton is filled in the silencing barrel, and an impedance silencing pipe is further arranged in the silencing barrel.

2. A composite pipe muffler as defined in claim 1, wherein: and a silencing sheet is arranged at one end of the impedance silencing pipe adjacent to the annular baffle, and a gap is formed between the silencing sheet and the inner wall of the impedance silencing pipe.

3. A composite pipe muffler as defined in claim 2, wherein: the inner ring of the annular baffle is provided with a notch.

4. A composite pipe muffler as defined in claim 1, wherein: the noise reduction cotton is centrifugal glass cotton.