CN206361904U

CN206361904U - A kind of silencer for HVAC ventilating system

Info

Publication number: CN206361904U
Application number: CN201621278302.6U
Authority: CN
Inventors: 温志梅; 王燕; 刘春花
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-27
Filing date: 2016-11-27
Publication date: 2017-07-28
Anticipated expiration: 2026-11-27

Abstract

The utility model discloses a kind of silencer for HVAC ventilating system, including two symmetrical ventilation ducts, the inwall of the ventilation duct is provided with aperture reflecting plate, link is installed at the top of ventilation duct, the inwall of the link is provided with macropore reflecting plate, the surface of the aperture reflecting plate is equidistant to offer reflection aperture, the surface of the macropore reflecting plate is equidistant to offer reflection macropore, hush pipe is installed at the top of the link, the top and bottom of the hush pipe offer silencing cavity, hush pipe and the inwall of silencing cavity are coated with puigging.The utility model is by setting the ventilation duct and hush pipe that separate, air-conditioner wind with noise enters from ventilation duct, it is more general that single unit system uses performance, but the quieter material of environmental protection, and by three noise reductions, effectively noise can be made to prevent, effectively block the propagation of HVAC noise, and indirectly improve the advantage of environmental quality.

Description

A kind of silencer for HVAC ventilating system

Technical field

The utility model is related to environmental technology field, specially a kind of silencer for HVAC ventilating system.

Background technology

HVAC is the air conditioner with heating, ventilation and air conditioning function.Due to the major function of HVAC Including：These three aspects of heating, ventilation and air adjustment, take the comprehensive abbreviation of these three functions, as HVAC.

At present, HVAC is during use, its noise produced it is inevitable, it is necessary to remove noise can only be from three Individual aspect is started with, at noise source, route of transmission and the sense of hearing, but in processing, typically using simple increase sound panel come Noise is removed, the sound panel of its safety and environmental protection, when in use, the effect for itself removing noise are not very good, noise During propagation, still it can be spread out of with air-conditioner wind, and the substantial amounts of pollution or expensive of the good easily generation of effect, Be not suitable for promoting the use of.

Utility model content

The purpose of this utility model is to provide a kind of silencer for HVAC ventilating system, possesses high intensity and subtract The effect made an uproar, has effectively blocked the propagation of HVAC noise, and indirectly improves the advantage of environmental quality, solves existing Noise insulation equipment effect difference easily produces the problem of polluting.

To achieve the above object, the utility model provides following technical scheme：It is a kind of for HVAC ventilating system Silencer, including two symmetrical ventilation ducts, the inwall of the ventilation duct, which is provided with the top of aperture reflecting plate, ventilation duct, to be provided with Link, the inwall of the link is provided with macropore reflecting plate, and the surface of the aperture reflecting plate is equidistant to offer reflection Aperture, equidistant offer in the surface of the macropore reflecting plate is provided with hush pipe at the top of reflection macropore, the link, institute The top and bottom for stating hush pipe offer silencing cavity, and the inwall of hush pipe and silencing cavity is coated with puigging.

It is preferred that, the bottom center of the hush pipe is fixed with pillar, and the both sides of the pillar are connected by connecting side lever The back of ventilation duct, the junction of the connection side lever and ventilation duct is socketed with vibration damper plate.

It is preferred that, the radius of the reflection macropore is more than twice of reflection aperture radius.

It is preferred that, adpting flange is mounted on the outside of the ventilation duct, the inner chamber of the adpting flange is socketed with sealing Circle.

It is preferred that, two ventilation ducts are centrosymmetric on pillar.

Compared with prior art, the beneficial effects of the utility model are as follows：

1st, the utility model is by setting the ventilation duct and hush pipe that separate, and the air-conditioner wind with noise enters from ventilation duct Enter, because the propagation characteristic of sound wave is relevant with the size of sound source and wave length of sound, thus, because the frequency that noise is produced is different, Therefore the noise of a part carries out reflection noise reduction, in addition one by the reflection aperture on the aperture reflecting plate that is set in ventilation duct Divide and reflection noise reduction is carried out by the reflection macropore on macropore reflecting plate, then the noise of last part is conveyed with air-conditioner wind Direction is entered in hush pipe, by the multiple raised silencing cavities being provided with hush pipe, carries out sound-deadening and noise-reducing operation, and in addition one Part is isolated in hush pipe in the puigging being provided with by noise reduction inside pipe wall, and last noise is being reflected to another ventilation duct Interior, single unit system uses that performance is more general, but the quieter material of environmental protection, and it can't be produced during noise reduction Pollution, and by three noise reductions, effectively noise can be made to prevent, and then reached the effect of high intensity noise abatement, effectively resistance Break the propagation of HVAC noise, and indirectly improved the advantage of environmental quality.

2nd, the utility model can keep the stability of single unit system, while using damping by pillar and connection side lever Plate, it is to avoid the vibration influence produced in ventilation duct during noise reduction is to the external world, while being also avoided that the shake that connection side lever and pillar are produced The dynamic elimination work for having influence on noise.

Brief description of the drawings

Fig. 1 is the utility model front partial perspective schematic view.

In figure：1 ventilation duct, 2 sealing rings, 3 pillars, 4 connection side levers, 5 vibration damper plates, 6 reflection apertures, 7 aperture reflecting plates, 8 Adpting flange, 9 macropore reflecting plates, 10 reflection macropores, 11 links, 12 puiggings, 13 hush pipes, 14 silencing cavities.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Referring to Fig. 1, a kind of silencer for HVAC ventilating system, including two symmetrical ventilation ducts 1, two lead to Airduct 1 is centrosymmetric on pillar 3, and the inwall of ventilation duct 1 is provided with aperture reflecting plate 7, and the top of ventilation duct 1 is provided with company Frame 11 is connect, the inwall of link 11 is provided with macropore reflecting plate 9, and the surface of aperture reflecting plate 7 is equidistant to offer reflection aperture 6, the surface of macropore reflecting plate 9 is equidistant to offer reflection macropore 10, and the top of link 11 is provided with hush pipe 13, hush pipe 13 top and bottom offer silencing cavity 14, and the inwall of hush pipe 13 and silencing cavity 14 is coated with puigging 12.

The bottom center of hush pipe 13 is fixed with pillar 3, and the both sides of pillar 3 connect the back of the body of ventilation duct 1 by connecting side lever 4 The junction of portion, connection side lever 4 and ventilation duct 1 is socketed with vibration damper plate 5, and the utility model passes through pillar 3 and connection side lever 4, energy The stability of single unit system is enough kept, while using vibration damper plate 5, it is to avoid the vibration influence produced in ventilation duct 1 during noise reduction is outside Boundary, while being also avoided that the elimination work for connecting the vibration influence of side lever 4 and the generation of pillar 3 to noise.

The radius for reflecting macropore 10 is more than reflection twice of the radius of aperture 6 so that sound wave can disperse more refinement dissipates.

The outside of ventilation duct 1 is mounted on adpting flange 8, and the inner chamber of adpting flange 8 is socketed with sealing ring 2, sealing ring 2 Design, it is to avoid leak out, while also avoiding noise from spilling, make the effect of its noise abatement stronger.

The utility model is by setting the ventilation duct 1 and hush pipe 13 that separate, and the air-conditioner wind with noise enters from ventilation duct 1 Enter, because the propagation characteristic of sound wave is relevant with the size of sound source and wave length of sound, thus, because the frequency that noise is produced is different, Therefore the noise of a part carries out reflection noise reduction by the reflection aperture 6 in ventilation duct 1 on the aperture reflecting plate 7 of setting, in addition A part carries out reflection noise reduction by the reflection macropore 10 on macropore reflecting plate 9, and then the noise of last part is with air-conditioning The direction of wind conveying is entered in hush pipe 13, by the multiple raised silencing cavities 14 being provided with hush pipe 13, carries out noise reduction Noise reduction operation, a in addition to be isolated in the puigging 12 being provided with by the inwall of hush pipe 13 in hush pipe 13, last noise It is being reflected in another ventilation duct 1, single unit system uses that performance is more general, but the quieter material of environmental protection, its Pollution can't be produced during noise reduction, and by three noise reductions, effectively noise can be made to prevent, and then reach The effect of high intensity noise abatement, has effectively blocked the propagation of HVAC noise, and indirectly improves the advantage of environmental quality.

In use, then user starts air-conditioning by the way that ventilation duct 1 is respectively connected into air-conditioning blast pipe and discharge pipe, Wind-force completes a noise abatement by ventilation duct 1, then by hush pipe 13, completes secondary noise abatement, finally again by another logical Airduct 1, completes three noise reduction operations.

In summary：This is used for the silencer of HVAC ventilating system, passes through ventilation duct 1, reflection aperture 6, aperture back Plate 7, macropore reflecting plate 9 and reflection macropore 10 are penetrated, the problem of solving existing noise insulation equipment effect difference or easily produce pollution.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of silencer for HVAC ventilating system, including two symmetrical ventilation ducts (1), it is characterised in that：It is described The inwall of ventilation duct (1) is provided with the top of aperture reflecting plate (7), ventilation duct (1) and is provided with link (11), the link (11) inwall is provided with macropore reflecting plate (9), and the surface of the aperture reflecting plate (7) is equidistant to offer reflection aperture (6), The surface of the macropore reflecting plate (9) is equidistant to be offered to be provided with the top of reflection macropore (10), the link (11) and disappears Sound tube (13), the top and bottom of the hush pipe (13) offer silencing cavity (14), hush pipe (13) and silencing cavity (14) Inwall be coated with puigging (12).

2. a kind of silencer for HVAC ventilating system according to claim 1, it is characterised in that：The noise reduction The bottom center of pipe (13) is fixed with pillar (3), and the both sides of the pillar (3) connect ventilation duct (1) by connecting side lever (4) Back, the connection side lever (4) and the junction of ventilation duct (1) are socketed with vibration damper plate (5).

3. a kind of silencer for HVAC ventilating system according to claim 1, it is characterised in that：The reflection The radius of macropore (10) is more than twice of reflection aperture (6) radius.

4. a kind of silencer for HVAC ventilating system according to claim 1, it is characterised in that：The ventilation Adpting flange (8) is mounted on the outside of pipe (1), the inner chamber of the adpting flange (8) is socketed with sealing ring (2).

5. a kind of silencer for HVAC ventilating system according to claim 1, it is characterised in that：Described in two Ventilation duct (1) is centrosymmetric on pillar (3).