CN211599796U - Silencing heat-insulating ventilation pipe - Google Patents

Abstract

The utility model relates to a ventilation pipe, in particular to amortization heat preservation ventilation pipe. The composite material comprises a framework layer and an outer protective layer which are arranged from inside to outside, wherein at least one flexible air-impermeable layer is arranged between the framework layer and the outer protective layer, and silencing heat-insulating layers are arranged between the flexible air-impermeable layer and the framework layer as well as between the flexible air-impermeable layer and the outer protective layer. When the flexible air-impermeable layers are two or more than two layers, a silencing heat-insulating layer is arranged between every two adjacent flexible air-impermeable layers. The utility model provides a ventilation pipe is the pipeline of connecting the new trend source to indoor, and the noise is little, and it is effectual to keep warm to small easy installation, convenient transportation.

Description

Silencing heat-insulating ventilation pipe

Technical Field

The utility model relates to a ventilation pipe, in particular to amortization heat preservation ventilation pipe.

Background

With the development of urbanization in China, more and more people enter cities to enter high-rise buildings and live into reinforced concrete houses. The house is well closed, but the time for people to contact with the nature is less and less, and a central air conditioner and a fresh air fan in a skyscraper become a way for people to keep temperature and obtain fresh air in life. Wind can generate friction sound when flowing in the pipeline, particularly an aluminum foil inner pipe, the metal characteristic of the aluminum foil inner pipe enables energy collision in the pipeline with a smooth surface to generate vibration, and the aluminum foil vibration can generate noise. The sound generated by the friction between the air and the inner pipe is reflected and amplified to form the booming noise, and the noise is doubled by adding the sound transmitted by the fan, thereby bringing infinite troubles to users. In addition, the traditional ventilation pipe has great noise and unsatisfactory heat preservation effect. Therefore, a ventilating pipe with good noise reduction and heat preservation is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a amortization heat preservation ventilation pipe to solve the big and not heat retaining problem of current ventilation pipe noise.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a noise-reduction heat-preservation ventilation pipe comprises a framework layer and an outer protection layer which are arranged from inside to outside, wherein at least one flexible air-impermeable layer is arranged between the framework layer and the outer protection layer, and noise-reduction heat-preservation layers are arranged between the framework layer and the flexible air-impermeable layer and between the flexible air-impermeable layer and the outer protection layer.

When the flexible air-impermeable layers are two or more than two layers, a silencing heat-insulating layer is arranged between every two adjacent flexible air-impermeable layers.

The flexible air-impermeable layer is an air-impermeable composite cloth pipe.

The pipe wall of the airtight composite pipe is composed of a non-woven fabric and a PE airtight film compounded on the non-woven fabric.

The sound absorption cotton is filled in the sound absorption heat preservation layer.

The framework layer comprises a framework and a flexible breathable inner tube coated on the outer side of the framework.

The flexible breathable inner tube is made of non-woven fabrics.

The skeleton is a cylindrical steel wire mesh.

The outer protective layer is a flexible air-tight outer pipe.

The flexible air-tight outer pipe is made of aluminum foil glass fiber cloth.

The utility model has the advantages and beneficial effects that: the utility model provides a ventilation pipe is the pipeline of connecting the new trend source to indoor, and the noise is little, and it is effectual to keep warm to small easy installation, convenient transportation.

The utility model discloses a transition pipe in the middle of flexible airtight material is regarded as, has noise elimination and heat preservation dual function, and is thinner with ventilation pipe heat preservation noise elimination layer, and noise elimination and heat preservation effect are more obvious.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 is the skeleton, and 2 are flexible ventilative inner tube, and 3 are flexible ventilative layer I, and 4 are flexible ventilative layer II, and 5 are flexible ventilative outer tube, 6 are first amortization heat preservation, and 7 are second amortization heat preservation, and 8 are third amortization heat preservation.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the utility model provides a pair of amortization heat preservation ventilation pipe, include by interior casing ply and the outer protective layer that sets up to the outside, be equipped with the flexible ventilative layer of at least one deck between casing ply and the outer protective layer, all be equipped with the amortization heat preservation between casing ply and the flexible ventilative layer and between flexible ventilative layer and the outer protective layer.

Furthermore, when the flexible air-impermeable layers are two or more than two, a silencing heat-insulating layer is also arranged between every two adjacent flexible air-impermeable layers. Because the flexibility of the flexible air-impermeable layer can also eliminate noise, the flexible air-impermeable layer is a part of the noise elimination structure and a part of the heat insulation structure, and has double functions of noise elimination and heat insulation.

Further, the framework layer comprises a framework 1 and a flexible breathable inner tube 2 coated outside the framework 1.

In the embodiment of the utility model, the framework 1 is a cylindrical steel wire mesh; the flexible breathable inner tube 2 is made of non-woven fabrics, is made into a tubular structure through the non-woven fabrics, and is wrapped on the outer side of the cylindrical steel wire mesh. Because the flexible breathable inner tube 2 is made of breathable non-woven fabrics, air can pass through the inner wall of the pipeline of the flexible breathable inner tube 2, the pressure difference between the inside and the outside of the non-woven fabrics is consistent, and the non-woven fabrics cannot vibrate.

Furthermore, the flexible air-impermeable layer between the framework layer and the outer protective layer is an air-impermeable composite cloth pipe.

The embodiment of the utility model provides an in, the pipe wall of airtight compound stringing comprises non-woven fabrics and the PE of compound on the non-woven fabrics air-impermeable membrane, has certain intensity. The flexibility of the airtight composite cloth pipe can also eliminate noise, can eliminate the noise which is not completely eliminated by the noise-eliminating heat-insulating layer, and can not reflect the sound, so the airtight composite cloth pipe has the functions of noise elimination and heat insulation.

Further, the outer protective layer is a flexible gas-impermeable outer tube 5.

In the embodiment of the utility model, the material of the flexible airtight outer tube 5 adopts aluminium foil glass fiber cloth.

The sound absorption cotton is filled in the sound absorption heat preservation layer between the airtight composite cloth pipe and the flexible air-permeable inner pipe 2, the sound absorption heat preservation layer between two adjacent airtight composite cloth pipes and the sound absorption heat preservation layer between the airtight composite cloth pipe and the flexible air-impermeable outer pipe 5.

The embodiment of the utility model provides an in, be equipped with two-layer flexible ventilative layer between flexible ventilative inner tube 2 and the flexible ventilative outer tube 5, flexible ventilative layer I3 and flexible ventilative layer II 4 promptly, be equipped with first amortization heat preservation 6 between flexible ventilative inner tube 2 and the flexible ventilative layer I3, be equipped with second amortization heat preservation 7 between flexible ventilative layer I3 and the flexible ventilative layer II 4, be equipped with third amortization heat preservation 8 between flexible ventilative layer II 4 and the flexible ventilative outer tube 5. Wherein the thickness of the first silencing and insulating layer 6 is 10mm, and the thickness of the second silencing and insulating layer 7 and the thickness of the third silencing and insulating layer 8 are both 5 mm.

The first noise-reduction heat-insulation layer 6 absorbs sound, and because the flexible breathable inner tube 2 is made of breathable non-woven fabric, wind can pass through the inner wall of the pipeline of the flexible breathable inner tube 2, the pressure difference between the inside and the outside of the non-woven fabric is consistent, and the non-woven fabric cannot vibrate, the flexible breathable inner tube 2, the first noise-reduction heat-insulation layer 6 and the flexible air-impermeable layer I3 form a resistant silencer structure; meanwhile, the flexible air-impermeable layer I3, the second silencing and insulating layer 7, the flexible air-impermeable layer II 4, the third silencing and insulating layer 8 and the flexible air-impermeable outer pipe 5 form a double-layer heat-insulating structure, and silencing cotton is filled in the middle of the silencing and insulating layer. The reactive muffler structure and the multilayer heat insulation structure are combined into a whole to form a silencing heat insulation pipe.

The embodiment of the utility model provides an in, be flexible airtight pipeline because of flexible airtight layer and outer protective layer, so second amortization heat preservation 7 and third amortization heat preservation 8 also are airtight layer, stop the thermal convection, be equivalent to double glazing window, the cotton flow that reduces inside air of sound of middle sound absorption.

The embodiment of the utility model provides an in, flexible airtight layer adopts airtight compound stringing, has compounded the soft PE of one deck ventilative membrane on very soft non-woven fabrics promptly to reach certain intensity. The air-tight composite cloth pipe can eliminate the noise which is not completely eliminated by the sound-absorbing cotton, and can not reflect the sound. For sound, the flexible air-impermeable layer does not reflect in the inner wall, namely the inner wall of the whole pipe is a sound absorption layer, and the inner wall of the whole pipe is also an insulation layer. The thickness of the pipe wall of the ventilating pipe can be made very thin through the application of the flexible air-impermeable layer, but the heat preservation effect is very good, and the noise elimination effect is ideal.

The ventilating pipe provided by the invention has the advantages of sound elimination and absorption, good heat insulation effect, thin pipe wall, capability of compressing the pipe into a small volume and convenience in transportation. The pipeline can be applied to an air purifier and can be popularized to other external air conditioning equipment, so that the heat efficiency is improved, the heat energy loss is reduced, and the energy is saved.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims (10)

1. The noise-reduction heat-insulation ventilation pipe is characterized by comprising a framework layer and an outer protective layer which are arranged from inside to outside, wherein at least one flexible air-impermeable layer is arranged between the framework layer and the outer protective layer, and noise-reduction heat-insulation layers are arranged between the framework layer and the flexible air-impermeable layer and between the flexible air-impermeable layer and the outer protective layer.

2. The noise-reduction and heat-preservation ventilating pipe according to claim 1, wherein when the flexible air-impermeable layers are two or more than two, a noise-reduction and heat-preservation layer is arranged between two adjacent flexible air-impermeable layers.

3. The noise-reducing and heat-insulating ventilation pipe according to claim 1 or 2, wherein the flexible air-impermeable layer is an air-impermeable composite cloth pipe.

4. The noise-reduction heat-preservation ventilating pipe according to claim 3, wherein the pipe wall of the air-tight composite cloth pipe is composed of non-woven fabrics and PE air-tight membranes compounded on the non-woven fabrics.

5. The noise-reduction and heat-preservation ventilating pipe according to claim 2, wherein sound-absorption cotton is filled in the noise-reduction and heat-preservation layer.

6. The noise-reduction heat-preservation ventilating pipe according to claim 1 or 2, wherein the framework layer comprises a framework and a flexible ventilating inner pipe coated outside the framework.

7. The noise-reduction and heat-preservation ventilating pipe according to claim 6, wherein the flexible ventilating inner pipe is made of non-woven fabric.

8. The noise-reduction heat-preservation ventilating pipe according to claim 6, wherein the skeleton is a cylindrical steel wire mesh.

9. The noise-reduction and heat-preservation ventilating pipe according to claim 1 or 2, wherein the outer protective layer is a flexible air-impermeable outer pipe.

10. The noise-reduction heat-preservation ventilating pipe according to claim 9, wherein the flexible air-impermeable outer pipe is made of aluminum foil glass fiber cloth.

Images