CN209926568U

CN209926568U - Noise elimination device for heating ventilation system and air conditioning ventilation system

Info

Publication number: CN209926568U
Application number: CN201920496153.8U
Authority: CN
Inventors: 许思特; 黄文琪; 张辉彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-01-10
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a noise eliminator for heating ventilation air conditioning system, including the pipeline body, the one end threaded connection of pipeline body has the ring flange, the lateral wall of ring flange is equipped with the external screw thread, the one end that the pipeline body is close to the ring flange is equipped with the internal thread that matches with the external screw thread, the one end fixedly connected with who the ring flange was kept away from to the pipeline body goes out the fan housing, threaded connection has the air-supply line on the ring flange. The utility model discloses in, through the first exhaust hole that sets up a plurality of slopes and a plurality of second exhaust hole that are the setting of horn mouth type on fixed sheathe in, the effect of the passage area of suddenly increased air flow through has been reached, the function of speed of reducing air flow through has been realized, the noise abatement's of being convenient for production, the amortization layer has been installed to the inside wall on the pipeline body simultaneously, prevent that the air from striking pipeline inside wall and producing the noise, be convenient for improve this noise eliminator to warm logical air conditioner air pipe's noise elimination effect.

Description

Noise elimination device for heating ventilation system and air conditioning ventilation system

Technical Field

The utility model relates to a warm supporting equipment technical field that leads to especially relates to a noise eliminator for warm logical air conditioner ventilation system.

Background

The heating ventilation system of the heating ventilation air conditioner is an important component of the heating ventilation air conditioner, and the heating ventilation air conditioner is equipment responsible for heating, ventilation and air conditioning indoors or in a vehicle, controls the indoor temperature, improves the indoor comfort level, is an important part in medium and large industrial buildings or office buildings, and plays an important role in the fields or industries such as pharmacy, electronics, oil gas and the like.

The application file name is "a silencing device for heating ventilation air conditioning ventilation system", application number "201820326428.9" has mentioned a school life device to heating ventilation air conditioning ventilation system, the air-supply line carries the inside of inner tube wall with the air, then through the bellmouth on the sleeve pipe increase the passageway area that the air flows through suddenly, thereby speed when having reduced the air discharge, reached and reduced the effect that produces the vibration between air and the spare part of motion, the sound that produces when having realized eliminating the air discharge, but there is some gas vertical impact to the inner tube wall that does not install noise control device and produces the sound, thereby noise when increasing the circulation of air, consequently, the silencing effect to heating ventilation air conditioning ventilation system is not good.

To this end, we propose a silencing device for hvac ventilation systems to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, the application file name is 'a muffler device for a heating ventilation and air conditioning ventilation system', the application number is '201820326428.9', a corrector in the heating ventilation and air conditioning ventilation system is provided, an air inlet pipe conveys air to the inner part of an inner cylinder wall, then the area of the channel through which the air flows is suddenly increased through the bell mouth on the sleeve, thereby reducing the speed of the air when the air is discharged, achieving the effect of reducing the vibration generated between the moving air and parts, realizing the elimination of the sound generated when the air is discharged, but there is a sound generated by a part of the gas vertically hitting the inner cylindrical wall where the noise preventing means is not installed, therefore, the noise generated during air circulation is increased, and the silencing effect of the heating ventilation, ventilation and air conditioning ventilation system is poor.

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

the utility model provides a noise eliminator for heating and ventilating air conditioner ventilation system, includes the pipeline body, the one end threaded connection of pipeline body has the ring flange, the lateral wall of ring flange is equipped with the external screw thread, the one end that the pipeline body is close to the ring flange is equipped with the internal thread that matches with the external screw thread, the one end fixedly connected with exhaust hood of ring flange is kept away from to the pipeline body, threaded connection has the air-supply line on the ring flange, the one end of air-supply line runs through ring flange and threaded connection has fixed cover, be equipped with the screw thread mouth that corresponds with the air-supply line on the ring flange, fixed cover screw thread cup joints on the one end lateral wall of air-supply line, fixed cover is equipped with a plurality of first exhaust holes that are the slope setting and a plurality of second exhaust holes that are.

Preferably, a vacuum cavity is arranged on the pipeline body.

Preferably, the air-out cover is a round platform type, the bottom outer side wall of the air-out cover is in threaded connection with a fixing ring, the bottom of the fixing ring is fixedly connected with a filter screen, and the top of the filter screen is offset with the bottom of the air-out cover.

Preferably, the sum of the areas of the first exhaust holes and the second exhaust holes on the inner side wall of the fixed sleeve is smaller than or equal to the area of an inner hole circle of the air inlet pipe.

Preferably, the inner side wall of the sound-deadening layer is fixedly connected with a plurality of sound-deadening rods, and the plurality of sound-deadening rods are arranged in a staggered manner.

Preferably, the material of the sound-deadening rod and the material of the sound-deadening layer are both ethylene propylene diene monomer and mineral substance.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

through the first exhaust hole that sets up a plurality of slopes to set up and a plurality of second exhaust hole that are the setting of horn mouth type on fixed sheathe in, the effect that increases the air flow area through suddenly has been reached, the function of speed of reducing the air flow through has been realized, the noise abatement's of being convenient for production, the amortization layer has been installed to the inside wall on the pipeline body simultaneously, prevent that the air from striking the pipeline inside wall and producing the noise, be convenient for improve this noise eliminator to warm logical air conditioner air pipe's noise cancelling effect.

Drawings

Fig. 1 is a schematic structural view of a muffler device for a heating, ventilating, air conditioning and ventilating system according to the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of a side surface of a pipe body in the muffler device for the heating ventilation, air conditioning ventilation system provided by the utility model.

In the figure: the silencer comprises a pipeline body 1, a vacuum cavity 2, a silencing layer 3, an air outlet cover 4, a fixing ring 5, a filter screen 6, a flange 7, an air inlet pipe 8, a fixing sleeve 9, a first exhaust hole 10, a second exhaust hole 11 and a silencing rod 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a noise eliminator for heating ventilation air conditioner ventilation system, including pipeline body 1, the one end threaded connection of pipeline body 1 has ring flange 7, the lateral wall of ring flange 7 is equipped with the external screw thread, the one end that pipeline body 1 is close to ring flange 7 is equipped with the internal thread that matches with the external screw thread, 1 threaded connection of pipeline body is on the lateral wall of ring flange 7, be convenient for reduce the gap between pipeline body 1 and the ring flange 7, prevent to ventilate the in-process pipeline body 1 and the ring flange 7 between take place the striking and produce extra noise.

Wherein, the one end fixedly connected with that flange dish 7 was kept away from to pipeline body 1 goes out fan housing 4, it sets up to go out fan housing 4 to be the round platform type, the bottom lateral wall threaded connection who goes out fan housing 4 has solid fixed ring 5, gu fixed ring 5's bottom fixedly connected with filter screen 6, the top of filter screen 6 offsets with the bottom that goes out fan housing 4, it is fixed welding in pipeline body 1 one end bottom to go out fan housing 4, prevent to have the gap between fan housing 4 and the pipeline body 1, warm logical air conditioner air pipe is at the in-process that ventilates, the mutual striking produces the noise between fan housing 4 and the pipeline body 1, the effect of filter screen 6 prevents that some solid or insect birds from entering into the inner wall of pipeline body 1, cause the damage to the inside amortization stick 12 of pipeline body 1 and amortization layer 3, filter screen 6 is through solid fixed ring 5 and pipeline body 1 contact.

Wherein, the flange 7 is connected with an air inlet pipe 8 by screw thread, one end of the air inlet pipe 8 penetrates through the flange 7 and is connected with a fixing sleeve 9 by screw thread, the flange 7 is provided with a screw thread port corresponding to the air inlet pipe 8, the fixing sleeve 9 is sleeved on the outer side wall of one end of the air inlet pipe 8 by screw thread, the fixing sleeve 9 is provided with a plurality of first exhaust holes 10 which are arranged in an inclined way and a plurality of second exhaust holes 11 which are arranged in a bell mouth shape, the sum of the areas of the plurality of first exhaust holes 10 and the plurality of second exhaust holes 11 on the inner side wall of the fixing sleeve 9 is smaller than or equal to the inner hole circle area of the air inlet pipe 8, when the air in the air inlet pipe 8 flows through the fixing sleeve 9, the area of the flowing channel is suddenly increased by the plurality of first exhaust holes 10 and the plurality of second exhaust holes 11, the flowing speed of the air in the pipeline body 1 is convenient to be reduced, the silencing, the speed of being convenient for reduce the circulation of air also can avoid the air to strike the noise that produces on the pipeline body 1 inside wall simultaneously.

Wherein, the inner side wall and the outer side wall of the pipeline body 1 are both fixedly connected with a sound-deadening layer 3, the pipeline body 1 is provided with a vacuum cavity 2, the materials of the sound-deadening rods 12 and the materials of the sound-deadening layer 3 are both ethylene propylene diene monomer and mineral materials, a plurality of sound-deadening rods 12 are the inner side wall of the sound-deadening layer 3 which is adhered on the inner side wall of the pipeline body 1, the sound-deadening rods 12 are used for eliminating the noise inside the pipeline body 1, the noise inside the pipeline body 1 is eliminated through the sound-deadening layer 3 and the sound-deadening rods 12 which are arranged inside, then the vacuum cavity 2 eliminates a part of the noise inside the pipeline, the noise which is not eliminated is subjected to secondary silencing through the silencing layer 3 arranged on the outer side wall of the pipeline body 1, the effect of the silencing device on eliminating the noise inside the heating ventilation air-conditioning pipeline is improved, and the silencing material made of the ethylene propylene diene monomer and the mineral substance has a better silencing function.

In the utility model, when the air in the air inlet pipe 8 flows through the fixed sleeve 9, the flow passage area is suddenly increased through the first exhaust holes 10 and the second exhaust holes 11, so as to reduce the flow speed of the air in the pipeline body 1 and achieve the silencing effect, the obliquely arranged first exhaust holes 10 facilitate the oblique impact of the air on the silencing layer 3 fixed on the inner wall of the pipeline body 1, so as to reduce the speed of air circulation and avoid the noise generated by the air impacting on the inner wall of the pipeline body 1, the noise in the pipeline body 1 is eliminated through the silencing layer 3 and the silencing rod 12 arranged in the pipeline body 1, then the vacuum cavity 2 eliminates a part of the noise in the pipeline, the noise which is not eliminated is further silenced through the silencing layer 3 arranged on the outer side wall of the pipeline body 1, thereby improving the effect of the silencing device on the noise elimination in the heating and ventilation air conditioning pipeline, the sound-deadening material made of the ethylene propylene diene monomer rubber and the mineral substance has a good sound-deadening function.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a noise eliminator for heating and ventilating air conditioner ventilation system, includes pipeline body (1), its characterized in that, the one end threaded connection of pipeline body (1) has ring flange (7), the lateral wall of ring flange (7) is equipped with the external screw thread, the one end that pipeline body (1) is close to ring flange (7) is equipped with the internal thread that matches with the external screw thread, the one end fixedly connected with who keeps away from ring flange (7) goes out fan housing (4) pipeline body (1), threaded connection has air-supply line (8) on ring flange (7), the one end of air-supply line (8) runs through ring flange (7) and threaded connection has fixed cover (9), be equipped with the screw thread mouth that corresponds with air-supply line (8) on ring flange (7), fixed cover (9) screw thread cup joints on the one end lateral wall of air-supply line (8), fixed cover (9) are equipped with a plurality of first exhaust holes (10) that are the slope setting and a plurality The hole (11), the equal fixedly connected with amortization layer (3) of inside wall and the lateral wall of pipeline body (1).

2. A silencing device for heating, ventilating and air-conditioning ventilating system according to claim 1, wherein said pipe body (1) is provided with a vacuum chamber (2).

3. The muffler device for the heating, ventilation, air conditioning and ventilation system according to claim 1, wherein the air outlet cover (4) is arranged in a circular truncated cone shape, the outer side wall of the bottom of the air outlet cover (4) is in threaded connection with a fixing ring (5), the bottom of the fixing ring (5) is fixedly connected with a filter screen (6), and the top of the filter screen (6) is abutted to the bottom of the air outlet cover (4).

4. A silencing device for heating, ventilating and air-conditioning ventilating system according to claim 1, wherein the sum of the areas of the first exhaust holes (10) and the second exhaust holes (11) in the inner side wall of the fixing sleeve (9) is smaller than or equal to the area of the inner hole circle of the air inlet pipe (8).

5. A silencing device for heating, ventilating and air conditioning ventilation system according to claim 1, wherein a plurality of silencing rods (12) are fixedly connected to the inner side wall of the silencing layer (3), and the plurality of silencing rods (12) are arranged in a staggered manner.

6. The muffler device for the heating, ventilating, air-conditioning and ventilating system according to claim 5, wherein the material of the muffler rod (12) and the material of the muffler layer (3) are both ethylene propylene diene monomer and mineral.