CN208720485U - A kind of silencer for Heating,Ventilating and Air Conditioning ventilating system - Google Patents
A kind of silencer for Heating,Ventilating and Air Conditioning ventilating system Download PDFInfo
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- CN208720485U CN208720485U CN201820924710.7U CN201820924710U CN208720485U CN 208720485 U CN208720485 U CN 208720485U CN 201820924710 U CN201820924710 U CN 201820924710U CN 208720485 U CN208720485 U CN 208720485U
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Abstract
The utility model discloses a kind of silencers for Heating,Ventilating and Air Conditioning ventilating system, it is related to muffler technical field, specially a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system, including noise elimination casing, the side of the noise elimination inside pipe casing is plugged with the first silencing apparatus, the other side of the noise elimination inside pipe casing is plugged with the second silencing apparatus, first silencing apparatus includes fixed plate, air inlet, level-one noise reduction covers net, second level noise reduction covers net, three-level noise reduction covers net and venthole, second silencing apparatus includes fixed net, through-hole, sound insulation cylinder, sound-proof material, helical pipe and gas vent.This is used for the silencer of Heating,Ventilating and Air Conditioning ventilating system, a confined space being connected to is formed by blast pipe, noise elimination casing and discharge pipe, and noise reduction is carried out in noise elimination casing, multistage blocking is carried out to wind by the first silencing apparatus, multi-buffer noise reduction, wind is buffered and absorbed by the second silencing apparatus, realizes the purpose for designing reasonable and good muffling effect.
Description
Technical field
The utility model relates to muffler technical field, specially a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system.
Background technique
Heating,Ventilating and Air Conditioning is the air conditioner with heating, ventilation and air conditioning function.Due to the major function of Heating,Ventilating and Air Conditioning
Include: these three aspects of heating, ventilation and air conditioning, takes the comprehensive abbreviation of these three functions, as Heating,Ventilating and Air Conditioning.
Currently, Heating,Ventilating and Air Conditioning is during use, the noise generated is inevitable, and needing to remove noise can only be from three
A aspect is started with, at noise source, route of transmission and the sense of hearing, but in processing, traditional way be using it is simple increase every
Soundboard removes noise, and the soundproof plate of safety and environmental protection, when in use, the effect for itself removing noise is not very good
Good, noise still can be spread out of during propagation with air-conditioner wind, and good being easy to produce of effect is largely polluted or valence
Lattice are expensive, are not suitable for promoting the use of.Change air conditioner abnormal sound to cut down, most common measure is on the discharge pipe of air-conditioning
Install muffler, using at device in the duct acoustical behavior mutation sound reflecting act on, by pipeline section it is unexpected expand,
It shrinks or side connects resonant cavity, generate acoustic impedance mismatch, the interface for being mutated the sound wave of certain frequencies in acoustic impedance is reflected
Or phenomena such as interference, to achieve the purpose that noise elimination.But the silencing cotton or sound-absorbing material inside existing muffler by
When hot gas impacts, the performance muffler of muffler is influenced, because the wavelength of sound wave or frequency can change with the variation of temperature, by
In the influence of temperature, the noise reduction frequency dislocation of the design of muffler is often led to, so that muffler performance seriously reduces, therefore,
A kind of hot wind that can reduce Heating,Ventilating and Air Conditioning ventilating system is needed to meet air conditioner noises processing to the muffler that erasure effect influences
Requirement.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system,
Solve the problems mentioned above in the background art.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of logical for Heating,Ventilating and Air Conditioning
The silencer of wind system, including noise elimination casing, the side of the noise elimination inside pipe casing are plugged with the first silencing apparatus, the noise elimination
The other side of inside pipe casing is plugged with the second silencing apparatus, and first silencing apparatus includes fixed plate, air inlet, level-one noise reduction
Set net, second level noise reduction set net, three-level noise reduction set net and venthole, the edge of the fixed plate and the side of noise elimination casing are fixed
Connection, offers air inlet at the center of the fixed plate, the fixed plate close to the side of noise elimination casing from the inside to the outside successively
It is fixedly connected with level-one noise reduction set net, second level noise reduction set net and three-level noise reduction set net, the level-one noise reduction and covers net, second level noise reduction set
Net, three-level noise reduction set net are plugged to the inside of noise elimination casing, and level-one noise reduction set net, second level noise reduction set net and three-level disappear
Sound set net offers several ventholes, and second silencing apparatus includes fixed net, through-hole, sound insulation cylinder, sound-proof material, helix tube
The edge of road and gas vent, the fixed net is fixedly connected with the side of noise elimination casing, and the inside of the fixed net offers
Several through-holes, the fixed net are fixedly connected with sound insulation cylinder and helical pipe close to the side of noise elimination casing, and the sound insulation cylinder is remote
Side from fixed net is fixedly connected with helical pipe far from the side of fixed net, is set in the middle part of the sound insulation cylinder and helical pipe
It is equipped with sound-proof material, several gas vents are offered on the helical pipe.
Optionally, the noise elimination casing is fixedly connected with left fixed ring, institute close to the outer surface of the first silencing apparatus side
The inside for stating left fixed ring is plugged with left setscrew.
Optionally, the left fixed ring is fixedly connected with fixed plate and blast pipe, the air inlet by left setscrew
It manages one end far from fixed plate and is fixedly connected with first flange.
Optionally, the noise elimination casing is fixedly connected with right fixed ring, institute close to the outer surface of the second silencing apparatus side
The inside for stating right fixed ring is plugged with right setscrew.
Optionally, the right fixed ring is fixedly connected with fixed net and discharge pipe, the outlet air by right setscrew
Pipe is fixedly connected with second flange far from one end of fixed net.
Optionally, the edge of the fixed plate and fixed net is fixedly connected to cooling fin.
(3) beneficial effect
The utility model provides a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system, have it is following the utility model has the advantages that
1, the silencer for being used for Heating,Ventilating and Air Conditioning ventilating system by the way that blast pipe is arranged, and is arranged first on blast pipe
Flange fixes the ventilation shaft of Heating,Ventilating and Air Conditioning with first flange, and then the wind of Heating,Ventilating and Air Conditioning is introduced into the inside of blast pipe, into
Air hose is fixedly connected with noise elimination casing by left setscrew, and then wind is made to be introduced into the inside of noise elimination casing, noise elimination casing
The other end discharge pipe is fixedly connected with by right setscrew, and then keep watch and guide to the inside of discharge pipe, discharge pipe it is another
One end is fixedly connected with second flange, connects ventilating system by second flange, and then keep watch and be introduced into ventilating system, can
So that wind is carried out noise reduction in a closed space, avoids the erasure effect for air leakage phenomena occur during noise reduction and occurring
Bad problem realizes the reasonable purpose of design.
2, the silencer for being used for Heating,Ventilating and Air Conditioning ventilating system utilizes level-one noise reduction set by the way that the first silencing apparatus is arranged
Net, second level noise reduction set net and three-level noise reduction set net realize multistage blocking to wind, and every grade of noise reduction set net all has wind chamber and setting
Several ventholes are offered on the wind inlet of wind chamber stem, the wall of the wind chamber of every grade of noise reduction set net, rear stage noise reduction covers net
Wind chamber wind inlet correspond to previous stage noise reduction set net tail portion setting, and with the previous stage noise reduction set net tail portion formed it is slow
Chamber is rushed, this Multistage muffler covers net by the way that multistage noise reduction is arranged in noise elimination casing, and wind carries out multiple by multistage noise reduction set net
Noise treatment is reduced, the noise reduction effect of muffler is improved.
3, the silencer for being used for Heating,Ventilating and Air Conditioning ventilating system, by the second silencing apparatus, using sound insulation cylinder to noise into
Row is primary to be stopped, and sound insulation cylinder, which is kept watch, guides the inside of helical pipe into, increases the running track of wind, and open up on helical pipe
Wind is discharged from gas vent in gas vent, carries out multi-buffer to wind using multiple gas vents, the wind being discharged from gas vent is arranged to disappearing
Sound cotton, silencing cotton realize further absorption to noise, realize the purpose of good muffling effect.
4, silencer for being used for Heating,Ventilating and Air Conditioning ventilating system, by the fixed company in the edge of fixed plate and fixed net
It is connected to cooling fin, the heat that fixed plate collects level-one noise reduction set net, second level noise reduction set net and three-level noise reduction set net absorbs,
The heat that fixed net collects sound-proof material and helical pipe absorbs, and fixed plate and fixed net are collected using cooling fin
Heat radiates, it is therefore prevented that the generation of erasure effect problem of poor caused by temperature is excessively high realizes good muffling effect
Purpose.
Detailed description of the invention
Fig. 1 is that the utility model faces the schematic diagram of the section structure；
Fig. 2 is the structural schematic diagram of the utility model noise elimination sleeve；
Fig. 3 is the structural schematic diagram of the first silencing apparatus of the utility model；
Fig. 4 is the structural schematic diagram of the second silencing apparatus of the utility model.
In figure: 1- noise elimination casing, the first silencing apparatus of 2-, 201- fixed plate, 202- air inlet, 203- level-one noise reduction set
Net, 204- second level noise reduction cover net, 205- three-level noise reduction covers the fixed net of net, 206- venthole, the second silencing apparatus of 3-, 301-,
302- through-hole, 303- sound insulation cylinder, 304- sound-proof material, 305- helical pipe, 306- gas vent, the left fixed ring of 4-, the left fixed spiral shell of 5-
Adjusting screw, 6- blast pipe, 7- first flange, the right fixed ring of 8-, the right setscrew of 9-, 10- discharge pipe, 11- second flange, 12-
Cooling fin.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
The utility model provides a kind of technical solution referring to FIG. 1 to FIG. 4: a kind of for Heating,Ventilating and Air Conditioning ventilating system
Silencer, including noise elimination casing 1, noise elimination casing 1 are fixedly connected with left fixed ring close to the outer surface of 2 side of the first silencing apparatus
4, the inside of left fixed ring 4 is plugged with left setscrew 5, and left fixed ring 4 is fixedly connected with fixation by left setscrew 5
Plate 201 and blast pipe 6, blast pipe 6 are fixedly connected with first flange 7, first method of blast pipe 6 far from one end of fixed plate 201
Orchid 7 is connected with the ventilation shaft of warm air air-conditioning, and noise elimination casing 1 is fixedly connected close to the outer surface of 3 side of the second silencing apparatus
There is right fixed ring 8, the inside of right fixed ring 8 is plugged with right setscrew 9, and right fixed ring 8 is fixed by right setscrew 9
It is connected with fixed net 301 and discharge pipe 10, discharge pipe 10 is fixedly connected with second flange 11 far from one end of fixed net 301, out
The second flange 11 of air hose 10 is connect with air system plumbing, and the ventilation shaft of Heating,Ventilating and Air Conditioning, and then handle are fixed with first flange 7
The wind of Heating,Ventilating and Air Conditioning is introduced into the inside of blast pipe 6, then keeps watch and be introduced into the inside of noise elimination casing 1, finally keeps watch and guides to outlet air
The inside of pipe 10 connects ventilating system by second flange 11, and then keeps watch and be introduced into ventilating system, and wind can be made at one
Noise reduction is carried out in closed space, avoids and air leakage phenomena occurs during noise reduction and the erasure effect that occurs is bad asks
Topic, realizes the reasonable purpose of design, and the side inside noise elimination casing 1 is plugged with the first silencing apparatus 2, inside noise elimination casing 1
The other side be plugged with the second silencing apparatus 3, the first silencing apparatus 2 includes that fixed plate 201, air inlet 202, level-one noise reduction cover net
203, second level noise reduction set net 204, three-level noise reduction set net 205 and venthole 206, the edge of fixed plate 201 and noise elimination casing 1
Side be fixedly connected, air inlet 202 is offered at the center of fixed plate 201, fixed plate 201 is close to the side of noise elimination casing 1
Being fixedly connected sequentially from the inside to the outside has level-one noise reduction set net 203, second level noise reduction set net 204 and three-level noise reduction set net 205, level-one
Noise reduction set net 203, second level noise reduction set net 204, three-level noise reduction set net 205 are plugged to the inside of noise elimination casing 1, and level-one disappears
Sound set net 203, second level noise reduction set net 204 and three-level noise reduction set net 205 offer several ventholes 206, utilize level-one noise reduction
It covers net 203, second level noise reduction set net 204 and three-level noise reduction set net 205 and multistage, which stops, to be realized to wind, every grade of noise reduction set net all has wind
Chamber and the wind inlet that wind chamber stem is arranged in offer several ventholes 206 on the wall of the wind chamber of every grade of noise reduction set net, after
The wind inlet of the wind chamber of level-one noise reduction set net corresponds to the tail portion setting of previous stage noise reduction set net, and the tail with previous stage noise reduction set net
Portion forms cushion chamber, this Multistage muffler covers net by the way that multistage noise reduction is arranged in noise elimination casing 1, and wind is by multistage noise reduction set
Net carries out repeatedly reducing noise treatment, improves the noise reduction effect of muffler；Ventilation is opened up on every level-one noise reduction set net wall surface
On the one hand hole 206 ensures that wind normally flows out after venthole 206 in noise reduction set net, avoid forming vortex in noise reduction is covered and netted,
It ensure that the motion profile of wind, on the other hand acted on using the frequency displacement of micropore jet to realize noise reduction effect, and disappear in every level-one
Cushion chamber is formed between sound set net, makes wind after previous stage noise reduction set net, pressure reduction and flow velocity increase, so that high speed winds exist
Whole flow velocity in cushion chamber is uniform, during reducing media flow, the oscillation of denoiser is caused due to wind impact, to mention
The stability of high product, promotes the whole service life of denoiser, the second silencing apparatus 3 include fixed net 301, through-hole 302, every
Sound cylinder 303, sound-proof material 304, helical pipe 305 and gas vent 306, the edge of fixed net 301 and the side of noise elimination casing 1
It is fixedly connected, the inside of fixed net 301 offers several through-holes 302, and fixed net 301 is close to the fixed company in the side of noise elimination casing 1
It is connected to sound insulation cylinder 303 and helical pipe 305, side and helical pipe 305 of the sound insulation cylinder 303 far from fixed net 301 are far from fixed
The side of net 301 is fixedly connected, and the middle part of sound insulation cylinder 303 and helical pipe 305 is provided with sound-proof material 304, helical pipe 305
On offer several gas vents 306, once stopped using 303 pairs of noises of sound insulation cylinder, sound insulation cylinder 303, which is kept watch, guides spiral into
The inside of pipeline 305 increases the running track of wind, and opens up gas vent 306 on helical pipe 305, makes wind from gas vent
306 discharges carry out multi-buffer to wind using multiple gas vents 306, and the wind being discharged from gas vent 306 is arranged to silencing cotton 304, is disappeared
Sound cotton 304 realizes further absorption to noise, realizes the purpose of good muffling effect, the side of fixed plate 201 and fixed net 301
Cooling fin 12 is fixedly connected at edge, fixed plate 201 is to level-one noise reduction set net 203, second level noise reduction set net 204 and three-level noise reduction
The heat that set net 205 is collected is absorbed, and the heat that fixed net 301 collects sound-proof material 304 and helical pipe 305 is inhaled
It receives, and is radiated using the heat that cooling fin 12 collects fixed plate 201 and fixed net 301, it is therefore prevented that temperature is excessively high and draws
The generation of the erasure effect problem of poor risen, realizes the purpose of good muffling effect.
In conclusion this is used for the silencer of Heating,Ventilating and Air Conditioning ventilating system, in use, by setting blast pipe 6, and into
First flange 7 is set on air hose 6, the ventilation shaft of Heating,Ventilating and Air Conditioning is fixed with first flange 7, and then the wind of Heating,Ventilating and Air Conditioning is introduced
To the inside of blast pipe 6, blast pipe 6 is fixedly connected with noise elimination casing 1 by left setscrew 5, and then is introduced into wind and is disappeared
The other end of the inside of sound casing 1, noise elimination casing 1 is fixedly connected with discharge pipe 10 by right setscrew 9, and then keeps watch
The inside of discharge pipe 10 is guided to, the other end of discharge pipe 10 is fixedly connected with second flange 11, connects by second flange 11 logical
Wind system, and then keep watch and be introduced into ventilating system, wind can be made to carry out noise reduction in a closed space, avoid and disappearing
There is air leakage phenomena during sound and the bad problem of the erasure effect that occurs, realizes the reasonable purpose of design；Pass through setting
First silencing apparatus 2 is realized wind using level-one noise reduction set net 203, second level noise reduction set net 204 and three-level noise reduction set net 205 more
Grade stops, and every grade of noise reduction set net all has wind chamber and the wind inlet of wind chamber stem is arranged in, the wind chamber of every grade of noise reduction set net
Several ventholes 206 are offered on wall, the wind inlet of the wind chamber of rear stage noise reduction set net corresponds to the tail of previous stage noise reduction set net
Portion's setting, and cushion chamber, this Multistage muffler, by noise elimination casing 1 are formed with the tail portion of previous stage noise reduction set net
Multistage noise reduction is set and covers net, wind carries out repeatedly reducing noise treatment by multistage noise reduction set net, improves the noise reduction effect of muffler；
By the second silencing apparatus 3, once stopped using 303 pairs of noises of sound insulation cylinder, sound insulation cylinder 303, which is kept watch, guides helical pipe into
305 inside increases the running track of wind, and opens up gas vent 306 on helical pipe 305, makes wind from 306 row of gas vent
Out, multi-buffer is carried out to wind using multiple gas vents 306, the wind being discharged from gas vent 306 is arranged to silencing cotton 304, silencing cotton
304 pairs of noises realize further absorption, realize the purpose of good muffling effect；By in fixed plate 201 and fixed net 301
Edge be fixedly connected to cooling fin 12, fixed plate 201 is to level-one noise reduction set net 203, second level noise reduction set net 204 and three-level
The heat that noise reduction set net 205 is collected is absorbed, and the heat that fixed net 301 collects sound-proof material 304 and helical pipe 305 carries out
Absorb, and radiated using the heat that cooling fin 12 collects fixed plate 201 and fixed net 301, it is therefore prevented that temperature it is excessively high and
The generation of caused erasure effect problem of poor, realizes the purpose of good muffling effect.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In the present invention unless specifically defined or limited otherwise, term " setting ", " connected ", " connects " installation "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can be directly connected, can also can be inside two elements indirectly connected through an intermediary
The interaction relationship of connection or two elements.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in the second spy
It can be that the first and second features directly contact or the first and second features are connect indirectly by intermediary "above" or "below" sign
Touching.Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or
Oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section "
" following " can be fisrt feature and be directly under or diagonally below the second feature, or is merely representative of first feature horizontal height and is less than
Second feature.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system, including noise elimination casing (1), it is characterised in that: the Sound damping cover
The internal side of pipe (1) is plugged with the first silencing apparatus (2), and the internal other side of the noise elimination casing (1) is plugged with second and disappears
Acoustic device (3), first silencing apparatus (2) include fixed plate (201), air inlet (202), level-one noise reduction set net (203), two
Grade noise reduction set net (204), three-level noise reduction set net (205) and venthole (206), the edge of the fixed plate (201) and noise elimination
The side of casing (1) is fixedly connected, and offers air inlet (202), the fixed plate at the center of the fixed plate (201)
(201) side close to noise elimination casing (1) is fixedly connected sequentially from the inside to the outside has level-one noise reduction to cover net (203), second level noise reduction set
Net (204) and three-level noise reduction set net (205), level-one noise reduction set net (203), second level noise reduction cover net (204), three-level noise reduction set
Net (205) is plugged to the inside of noise elimination casing (1), and level-one noise reduction set net (203), second level noise reduction set net (204) and
Three-level noise reduction set net (205) offers several ventholes (206), second silencing apparatus (3) include fixed net (301),
Through-hole (302), sound insulation cylinder (303), sound-proof material (304), helical pipe (305) and gas vent (306), the fixed net (301)
Edge be fixedly connected with the side of noise elimination casing (1), the inside of the fixed net (301) offers several through-holes (302),
The fixed net (301) is fixedly connected with sound insulation cylinder (303) and helical pipe (305) close to the side of noise elimination casing (1), described
Side of the sound insulation cylinder (303) far from fixed net (301) is fixedly connected with helical pipe (305) far from the side of fixed net (301),
It is provided with sound-proof material (304) in the middle part of the sound insulation cylinder (303) and helical pipe (305), is opened up on the helical pipe (305)
There are several gas vents (306).
2. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system according to claim 1, it is characterised in that: the noise elimination
Casing (1) is fixedly connected with left fixed ring (4) close to the outer surface of the first silencing apparatus (2) side, the left fixed ring (4)
Inside is plugged with left setscrew (5).
3. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system according to claim 2, it is characterised in that: described left solid
Determine ring (4) and fixed plate (201) and blast pipe (6) are fixedly connected with by left setscrew (5), the blast pipe (6) is separate
One end of fixed plate (201) is fixedly connected with first flange (7).
4. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system according to claim 1, it is characterised in that: the noise elimination
Casing (1) is fixedly connected with right fixed ring (8) close to the outer surface of the second silencing apparatus (3) side, the right fixed ring (8)
Inside is plugged with right setscrew (9).
5. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system according to claim 4, it is characterised in that: described right solid
Determine ring (8) and be fixedly connected with fixed net (301) and discharge pipe (10) by right setscrew (9), the discharge pipe (10) is remote
One end from fixed net (301) is fixedly connected with second flange (11).
6. a kind of silencer for Heating,Ventilating and Air Conditioning ventilating system according to claim 1, it is characterised in that: the fixation
The edge of plate (201) and fixed net (301) is fixedly connected to cooling fin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820924710.7U CN208720485U (en) | 2018-06-14 | 2018-06-14 | A kind of silencer for Heating,Ventilating and Air Conditioning ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820924710.7U CN208720485U (en) | 2018-06-14 | 2018-06-14 | A kind of silencer for Heating,Ventilating and Air Conditioning ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208720485U true CN208720485U (en) | 2019-04-09 |
Family
ID=65971580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820924710.7U Expired - Fee Related CN208720485U (en) | 2018-06-14 | 2018-06-14 | A kind of silencer for Heating,Ventilating and Air Conditioning ventilating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208720485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442516A (en) * | 2020-05-08 | 2020-07-24 | 西安艾科特声学科技有限公司 | A air exchange system noise control device for in low noise room |
-
2018
- 2018-06-14 CN CN201820924710.7U patent/CN208720485U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442516A (en) * | 2020-05-08 | 2020-07-24 | 西安艾科特声学科技有限公司 | A air exchange system noise control device for in low noise room |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20200614 |