CN219413958U - Noise reduction type composite air pipe - Google Patents

Abstract

The utility model discloses a silencing type composite air pipe, which relates to the technical field of silencing air pipes and particularly comprises a plurality of pipelines, wherein two ends of each pipeline are respectively provided with a connected flange, the outer surface of each pipeline is provided with an asbestos heat insulation layer, the outer side of each asbestos heat insulation layer is provided with first soundproof cotton, the surface of each first soundproof cotton is provided with a sound absorption plate, a protective layer is arranged outside each sound absorption plate, the pipelines are connected in a tail-to-tail mode, a frame-shaped pad is arranged between each two connected flanges, the outer side of each frame-shaped pad is connected with a protective frame, the connected flanges are respectively arranged in the protective frames, the frame-shaped pad and the protective frame are integrally formed, the frame-shaped pad and the protective frame are made of rubber materials, and the two connected flanges are fixed through bolts or riveting manners. When the heat insulation device is used, the asbestos heat insulation layer can reduce the transmission of vibration to the first sound insulation cotton, and the first sound insulation cotton is matched with the honeycomb plate and the second sound insulation plate, so that heat insulation and sound insulation can be realized, and the joint of the two connected flanges can be protected.

Description

Noise reduction type composite air pipe

Technical Field

The utility model relates to the technical field of silencing air pipes, in particular to a silencing composite air pipe.

Background

Air ducts are ductwork for air delivery and distribution, and are widely used in ventilation systems in large buildings, factories, and shopping malls.

The air pipe for ventilation needs air to flow for a long time, indoor air and outdoor air are replaced, and the air pipe is installed indoors, so that the noise effect of the air pipe is required to be certain, the air pipe is divided into a composite air pipe and a thin steel plate air pipe, the steel plate air pipe is high in noise, the composite air pipe is made of composite materials, no protective structure exists outside, and the noise reduction effect is general. Therefore, we propose a silencing type composite air duct.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a silencing type composite air pipe.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a compound tuber pipe of amortization formula, includes many pipelines, and the both ends of pipeline all are equipped with disjunctor flange, and the pipeline surface is equipped with asbestos heat preservation, and the asbestos heat preservation outside is equipped with first soundproof cotton, and first soundproof cotton surface is equipped with the abatvoix, and the abatvoix is the protective layer outward.

Preferably, the protective layer comprises a second soundproof cotton arranged on the surface of the sound absorbing plate, and aluminum foil fiber cloth is arranged on the surface of the second soundproof cotton.

Preferably, the sound absorbing panel is an asbestos sound absorbing panel or a honeycomb panel.

Preferably, the pipeline is connected end to end, and a frame-shaped pad is arranged between the two connected flanges, the outer side of the frame-shaped pad is connected with a protection frame, and the connected flanges are respectively arranged in the protection frame.

Preferably, the frame-shaped pad and the protection frame are of an integrated structure, the frame-shaped pad and the protection frame are made of rubber materials, and the two connected flanges are fixed through bolts or riveting.

Compared with the prior art, when the heat insulation type honeycomb panel is used, vibration can be generated in a pipeline, the asbestos heat insulation layer can reduce the transmission of vibration to the first soundproof cotton, the first soundproof cotton is matched with the honeycomb panel and the second soundproof board, heat insulation can be realized, sound insulation can be realized, and the joint of the two conjoined flanges can be protected.

Drawings

Fig. 1 is a schematic structural diagram of the present utility model.

Fig. 2 is a schematic structural diagram of the second embodiment of the present utility model.

FIG. 3 is a schematic diagram of the connection of the present utility model.

In the figure: pipeline 1, asbestos heat preservation 2, first soundproof cotton 3, abatvoix 4, aluminium foil fiber cloth 5, disjunctor flange 6, second soundproof cotton 7, protection frame 8, frame pad 9.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a compound tuber pipe of amortization formula, includes many pipelines 1, and pipeline 1's both ends all are equipped with disjunctor flange 6, and pipeline 1 surface is equipped with asbestos heat preservation 2, and the asbestos heat preservation 2 outside is equipped with first soundproof cotton 3, and first soundproof cotton 3 surface is equipped with abatvoix 4, and abatvoix 4 is equipped with the protective layer outward.

The pipeline 1 is formed by folding a thin steel plate or is made of a composite material, vibration can be generated by the pipeline 1 in the air extraction process of the pipeline 1, the asbestos thermal insulation layer 2 can be used for preserving heat and reducing vibration to be transmitted towards the first soundproof cotton 3, the first soundproof cotton 3 is of a porous structure, heat can be preserved, sound can be further insulated, and the sound absorbing plate arranged outside the first soundproof cotton 3 further reduces the transmission of pipe body sound.

As shown in fig. 1 and 2, the protective layer comprises a second soundproof cotton 7 arranged on the surface of the sound absorbing plate 4, and an aluminum foil fiber cloth 5 is arranged on the surface of the second soundproof cotton 7, and the aluminum foil fiber cloth 5 is corrosion-resistant and high-temperature-resistant, so that pipelines and soundproof cotton can be protected for a long time.

The sound absorbing plate 4 is an asbestos sound absorbing plate or a honeycomb plate, the inside of the asbestos sound absorbing plate is of a porous structure, and the honeycomb plate is an asbestos honeycomb plate or a high-temperature-resistant plastic honeycomb plate.

As shown in fig. 1, a frame-shaped pad 9 is arranged between two conjoined flanges 6, a protection frame 8 is connected to the outer side of the frame-shaped pad 9, the conjoined flanges 6 are respectively arranged in the protection frame 8, the frame-shaped pad 9 and the protection frame 8 are of an integrally formed structure, the frame-shaped pad 9 and the protection frame 8 are made of rubber materials, and the two conjoined flanges 6 are fixed through bolts or riveting.

As shown in fig. 3, the integral structure of the integral flange 6 and the end part of the pipeline 1 is provided with the frame-shaped pad 9 between the integral flanges 6, so that the two connecting flanges can be sealed, the pretightening force can be increased, the edge of the integral flange 6 is wrapped by the protective frame 8 arranged outside the frame-shaped pad 9, vibration of the pipeline 1 can not be transmitted to the outside or transmitted to the outside very little, and the connecting position of the two pipelines 1 can be protected.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a compound tuber pipe of amortization formula, includes many pipelines (1), and the both ends of pipeline (1) all are equipped with disjunctor flange (6), its characterized in that: the outer surface of the pipeline (1) is provided with an asbestos heat preservation layer (2), a first soundproof cotton (3) is arranged on the outer side of the asbestos heat preservation layer (2), a sound absorbing plate (4) is arranged on the surface of the first soundproof cotton (3), and a protective layer is arranged outside the sound absorbing plate (4).

2. The sound deadening type composite ductwork according to claim 1, characterized in that: the protective layer comprises second soundproof cotton (7) arranged on the surface of the sound absorbing plate (4), and aluminum foil fiber cloth (5) is arranged on the surface of the second soundproof cotton (7).

3. The sound deadening type composite ductwork according to claim 1, characterized in that: the sound absorbing plate (4) is an asbestos sound absorbing plate or a honeycomb plate.

4. The sound deadening type composite ductwork according to claim 1, characterized in that: the pipeline (1) is connected end to end, and frame type pads (9) are arranged between two conjoined flanges (6), the outer sides of the frame type pads (9) are connected with a protection frame (8), and the conjoined flanges (6) are respectively arranged in the protection frame (8).

5. The sound deadening type composite ductwork according to claim 1, characterized in that: the frame-shaped pad (9) and the protection frame (8) are of an integrated structure, the frame-shaped pad (9) and the protection frame (8) are made of rubber, and the two conjoined flanges (6) are fixed through bolts or riveting.