CN203571996U - Combined silencer for central air conditioning unit - Google Patents
Combined silencer for central air conditioning unit Download PDFInfo
- Publication number
- CN203571996U CN203571996U CN201320673228.8U CN201320673228U CN203571996U CN 203571996 U CN203571996 U CN 203571996U CN 201320673228 U CN201320673228 U CN 201320673228U CN 203571996 U CN203571996 U CN 203571996U
- Authority
- CN
- China
- Prior art keywords
- air
- shell
- conditioning unit
- inner casing
- combined type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 230000003584 silencer Effects 0.000 title abstract description 14
- 239000011358 absorbing material Substances 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 230000008030 elimination Effects 0.000 abstract description 4
- 238000003379 elimination reaction Methods 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 8
- 230000000903 blocking effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Landscapes
- Duct Arrangements (AREA)
- Exhaust Silencers (AREA)
Abstract
A combined silencer for a central air conditioning unit comprises a frame body fixed to a bottom frame, and a face plate which covers the periphery of the frame body. A plurality of silencer units which completely occupy the cross section of the frame body are arranged in the frame body. Each silencer unit comprises an outer shell, an inner shell, a front sealing plate and a rear sealing plate, wherein the outer shell is defined by a metal plate, the cross section of the outer shell is of a rectangular shape, the inner shell is arranged in the outer shell and is of a cylindrical shape, a plurality of penetrating holes are formed in the cylindrical wall of the inner shell, an inner cavity of the inner shell is an air passageway, the front end of the air passageway is provided with an air outlet, the rear end of the air passageway is provided with an air inlet, the diameter of the air inlet is larger than the diameter of the air outlet, the front sealing plate conducts sealing and blocking between the front end edge of the inner shell and the front end edge of the outer shell, the rear sealing plate conducts sealing and blocking between the rear end edge of the inner shell and the rear end edge of the outer shell, and a cavity defined by the outer shell, the inner shell, the front sealing plate and the rear sealing plate is filled with sound absorption materials. The combined silencer has excellent noise elimination performance and wide noise elimination frequency spectra, can be flexibly combined on the aspects of size and structure, and can meet the requirements of central air conditioning units of different specifications.
Description
Technical field:
The utility model relates to a kind of air conditioner noises cancellation element, relates in particular to a kind of central air-conditioning unit Combined type muffler, belongs to air-conditioning technical field.
Background technology:
Air-conditioning equipment air-supply unavoidably will bring noise, generally in air-treatment unit He in air conditioning duct system, silencer is set, and in order to carry out noise reduction process, the common mechanism of silencer has dividing of resistive and resistance.In air-treatment unit, most producers all adopt chip dissipative muffler at present, but the acoustical absorptivity of chip dissipative muffler is very limited, can only meet general requirement, and for high-grade office building, music hall, recording studio etc., noise being had the occasion of strict restriction, chip dissipative muffler can not meet the demands.
Utility model content:
Technical problem to be solved in the utility model is the deficiency that overcomes above-mentioned existing silencer, a kind of central air-conditioning unit Combined type muffler is provided, its acoustic attenuation performance is better than conventional sheet sound silencer, volume structure can flexible combination, can meet the supporting demand that noise level is had to the air-treatment unit of requirements at the higher level.
The technical scheme in the invention for solving the technical problem is as follows:
A kind of central air-conditioning unit Combined type muffler, includes the framework being fixed on underframe and the panel that covers this framework periphery, it is characterized in that: in described framework, be provided with the multiple mufflers that are full of this framework cross section.
Described muffler comprises shell, inner casing, front shrouding and rear shrouding, described shell is enclosed and is formed by metallic plate, its cross sectional shape is rectangle, described inner casing is arranged in this shell, this inner casing is on circular cone tubular and barrel, to have multiple perforation, its inner chamber is air duct, the front end of this air duct is air outlet, rear end is air inlet, the diameter of this air inlet is greater than the diameter of air outlet, described front shrouding is plugged between the front end edge of described inner casing and the front end edge of shell, described rear shrouding is plugged between the back end edge of described inner casing and the back end edge of shell, at described shell, inner casing, front shrouding and rear shrouding surround in the cavity forming and are filled with sound-absorbing material.
Described air inlet is provided with nozzle shape air inlet ring.
Described sound-absorbing material is unit weight 32Kg/m
3super glass wool sound-absorbing material.
Described inner casing adopts punching steel plate or the aluminium sheet of punching rate >=50% to make.
The inner surface of described inner casing posts glass fabric.
The width of described shell equals 2 times of diameter of described air outlet, and the diameter that the height of described shell equals described air outlet adds 102mm.
The length of described muffler is 600mm, 900mm, 1200mm, 1500mm or 1800mm, and the diameter of described air outlet is 102mm, 153mm, 204mm, 255mm, 306mm, 357mm or 408mm.
The outer surface punching press of described shell has holds the groove that connects screw end.
Compare with silencer with traditional air-conditioning unit, central air-conditioning unit described in the utility model has the following advantages with Combined type muffler:
1, the utility model is combined by multiple mufflers, it can freely select the muffler of different-diameter to carry out permutation and combination according to the flexible in size of air-conditioning unit ventilation section, can be according to the flexible value in the space allowing in unit in length, therefore in structure, can adapt to the multiple spatial configuration of existing assembled air-conditioner unit, thereby meet the needs that different size central air-conditioning unit is eliminated the noise.
2, the utility model is provided with nozzle shape air inlet ring on air inlet, and the diameter of air inlet is greater than the diameter of air outlet, diameter air intlet large and that be shaped as nozzle shape can avoid producing strong air-swirl, air local resistance and wind noise have significantly been reduced, cut down the adverse effect of quadratic noise, thereby improved the general effect of silencer, experimental verification, its noise reduction can reach more than 3 decibels.
3, in described inner casing, the import of air duct is different from outlet internal diameter, because the sound-absorbing material thickness of filling along the each cross section of air-flow direction is all different, so its sound absorption characteristic frequency is also different, thereby the utlity model has comparatively wide in range noise elimination frequency spectrum, effectively avoided the appearance of inefficacy frequency range.
4, the outer surface of described shell, by stamped recess, can not give prominence to the end that connects screw, has guaranteed the accurate of shell periphery dead size, has avoided after multiple unit combination because scale error accumulation fills to enter in unit.
5, the size of described shell adopts modularization numerical value, can adapt on the one hand the rectangle ventilation section of air-treatment unit, has guaranteed on the other hand to have similar soundproof effect with a series of muffler.
In a word, the utility model provide a kind of air flow resistance rationally, be better than the model muffler of conventional sheet sound silencer on acoustic attenuation performance, central air-conditioning unit described in the utility model is as shown in the table by the performance comparison of Combined type muffler and existing conventional ZP100 type silencer:
The utility model excellent performance, is worthy to be popularized as can be seen here.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the section of structure of the utility model muffler.
Fig. 3 is the right view of Fig. 2.
The specific embodiment:
Below in conjunction with drawings and Examples, the utility model is described in further detail, but can not limits protection domain of the present utility model with this.
Refer to Fig. 1, diagram central air-conditioning unit includes framework 2 and panel 3 with Combined type muffler, this framework 2 is fixed on underframe 1, and this panel 3 covers the periphery of this framework 2, is provided with multiple mufflers 4 and is full of the cross section of this framework 1 in described framework 1.
Refer to Fig. 2, described muffler 4 comprises shell 42, inner casing 43, front shrouding 44 and rear shrouding 45.Described shell 42, by metallic plate, forms as steel plate encloses, and its cross sectional shape is rectangle (see figure 3); The outer surface punching press of described shell 42 is fluted to hold the end that connects screw, so that connect screw end, can not give prominence to, guaranteed the accurate of shell 42 periphery dead sizes, avoided after multiple mufflers 4 combinations, because scale error accumulation fills to enter in unit.Described inner casing 43 is arranged in this shell 42, and this inner casing 43 is for having multiple perforation on circular cone tubular and barrel, and it can adopt punching steel plate or the aluminium sheet of punching rate >=50% to make; The inner chamber of described inner casing 43 is air duct 41, and the front end of this air duct 41 is air outlet 412, and rear end is air inlet 411, and the diameter of this air inlet 411 is greater than the diameter of air outlet 412, to obtain comparatively wide in range noise elimination frequency spectrum; Described air inlet 411 is provided with nozzle shape air inlet ring 431, to improve the noise reduction of silencer.Described front shrouding 44 is plugged between the front end edge of described inner casing 43 and the front end edge of shell 42, described rear shrouding 45 is plugged between the back end edge of described inner casing 43 and the back end edge of shell 42, in described shell 42, inner casing 43, front shrouding 44 and rear shrouding 45 surround the cavity forming, is filled with sound-absorbing material 46; At the inner surface of inner casing 43, post glass fabric 47, in case sound-absorbing material 46 blows out; Described sound-absorbing material 46 can adopt the super glass wool sound-absorbing material of unit weight 32Kg/m3.
Refer to Fig. 3, the size of described muffler 4 is followed following rule: the width W i of described shell 42 equals 2 times of diameter D of described air outlet 412, i.e. Wi=2D; The diameter D that the height H i of described shell 42 equals described air outlet 412 adds 102mm, i.e. Hi=D+102mm.
According to different sound deadening capacity requirements, the size of described muffler 4 adopts modularization numerical value, its length L can be selected 600mm, 900mm, 1200mm, 1500mm or 1800mm etc., and the diameter D of described air outlet 412 can select 102mm, 153mm, 204mm, 255mm, 306mm, 357mm or 408mm etc.
Claims (9)
1. a central air-conditioning unit Combined type muffler, includes the framework being fixed on underframe and the panel that covers this framework periphery, it is characterized in that: in described framework, be provided with the multiple mufflers that are full of this framework cross section.
2. central air-conditioning unit Combined type muffler according to claim 1, it is characterized in that: described muffler comprises shell, inner casing, front shrouding and rear shrouding, described shell is enclosed and is formed by metallic plate, its cross sectional shape is rectangle, described inner casing is arranged in this shell, this inner casing is on circular cone tubular and barrel, to have multiple perforation, its inner chamber is air duct, the front end of this air duct is air outlet, rear end is air inlet, the diameter of this air inlet is greater than the diameter of air outlet, described front shrouding is plugged between the front end edge of described inner casing and the front end edge of shell, described rear shrouding is plugged between the back end edge of described inner casing and the back end edge of shell, at described shell, inner casing, front shrouding and rear shrouding surround in the cavity forming and are filled with sound-absorbing material.
3. central air-conditioning unit Combined type muffler according to claim 2, is characterized in that: described air inlet is provided with nozzle shape air inlet ring.
4. according to the central air-conditioning unit Combined type muffler described in claim 2 or 3, it is characterized in that: described sound-absorbing material is unit weight 32Kg/m
3super glass wool sound-absorbing material.
5. according to the central air-conditioning unit Combined type muffler described in claim 2 or 3, it is characterized in that: described inner casing adopts punching steel plate or the aluminium sheet of punching rate >=50% to make.
6. according to the central air-conditioning unit Combined type muffler described in claim 2 or 3, it is characterized in that: the inner surface of described inner casing posts glass fabric.
7. central air-conditioning unit Combined type muffler according to claim 2, is characterized in that: the width of described shell equals 2 times of diameter of described air outlet, and the diameter that the height of described shell equals described air outlet adds 102mm.
8. central air-conditioning unit Combined type muffler according to claim 2, it is characterized in that: the length of described muffler is 600mm, 900mm, 1200mm, 1500mm or 1800mm, the diameter of described air outlet is 102mm, 153mm, 204mm, 255mm, 306mm, 357mm or 408mm.
9. central air-conditioning unit Combined type muffler according to claim 2, is characterized in that: the outer surface punching press of described shell has holds the groove that connects screw end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673228.8U CN203571996U (en) | 2013-10-28 | 2013-10-28 | Combined silencer for central air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673228.8U CN203571996U (en) | 2013-10-28 | 2013-10-28 | Combined silencer for central air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571996U true CN203571996U (en) | 2014-04-30 |
Family
ID=50539725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673228.8U Expired - Fee Related CN203571996U (en) | 2013-10-28 | 2013-10-28 | Combined silencer for central air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005928A (en) * | 2017-11-29 | 2018-05-08 | 无锡澳蓝特环保科技有限公司 | Air exhaust cooling device with noise elimination function |
| CN109297175A (en) * | 2018-11-15 | 2019-02-01 | 中国船舶重工集团公司第七〇四研究所 | Phonon crystal type noise elimination array structure and air-conditioning system |
| CN109945680A (en) * | 2019-03-28 | 2019-06-28 | 广东览讯科技开发有限公司 | Cooling tower with silencer |
-
2013
- 2013-10-28 CN CN201320673228.8U patent/CN203571996U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005928A (en) * | 2017-11-29 | 2018-05-08 | 无锡澳蓝特环保科技有限公司 | Air exhaust cooling device with noise elimination function |
| CN109297175A (en) * | 2018-11-15 | 2019-02-01 | 中国船舶重工集团公司第七〇四研究所 | Phonon crystal type noise elimination array structure and air-conditioning system |
| CN109945680A (en) * | 2019-03-28 | 2019-06-28 | 广东览讯科技开发有限公司 | Cooling tower with silencer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202578056U (en) | Purification sound-proof chamber | |
| CN201230860Y (en) | Dust collector with silencing structure | |
| CN201354665Y (en) | Throttled wind system silencer | |
| CN203571996U (en) | Combined silencer for central air conditioning unit | |
| CN103835997B (en) | Air conditioner indoor unit and volute thereof | |
| CN203717447U (en) | Air conditioner indoor unit and volute thereof | |
| CN106765384A (en) | A kind of perforated microstructure low noise lampblack absorber | |
| CN205717814U (en) | Noise reduction ring and indoor apparatus of air conditioner | |
| CN202835736U (en) | Plate type silencer with different thickness sound absorbing plates arranged at intervals | |
| CN211423009U (en) | Frequency-adjustable noise-reducing centrifugal ventilator and volute thereof | |
| CN201262108Y (en) | Resistive sheet type silencer | |
| CN205383734U (en) | Low noise new trend and exhaust system and acoustics room that has this system | |
| CN203586511U (en) | Silencing structure of air conditioner and air conditioner | |
| CN106500203A (en) | Noise reduction structure of air conditioner outdoor unit, outdoor unit shell and air conditioner outdoor unit | |
| CN101625146A (en) | Ventilation silencer | |
| CN201852256U (en) | Sound-insulation air passing port | |
| CN109340192B (en) | Fume exhaust fan | |
| WO2014128040A1 (en) | Attenuator for ventilation duct | |
| CN207094856U (en) | Outdoor integral air conditioner | |
| CN215256975U (en) | Noise-reduction volute tongue, volute, fan and range hood | |
| CN104165450A (en) | Power recovery type tubular muffler | |
| CN210374015U (en) | Muffler assembly suitable for ventilation system | |
| JP2013148240A (en) | Air conditioner with incorporated silencer | |
| CN104008748B (en) | A kind of shuttle-type strip-type silencer | |
| CN209744688U (en) | High sound insulation volume sound insulation cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |