CN107355970A - A kind of hundred grades of system layer streams of combined type low noise - Google Patents
A kind of hundred grades of system layer streams of combined type low noise Download PDFInfo
- Publication number
- CN107355970A CN107355970A CN201710738619.6A CN201710738619A CN107355970A CN 107355970 A CN107355970 A CN 107355970A CN 201710738619 A CN201710738619 A CN 201710738619A CN 107355970 A CN107355970 A CN 107355970A
- Authority
- CN
- China
- Prior art keywords
- mixed flow
- abatvoix
- micropore abatvoix
- combined type
- low noise
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Abstract
The invention belongs to operating room laminar flow air-supply technical field, more particularly to a kind of hundred grades of system layer streams of combined type low noise, the flexible pipe with air supply duct with diameter is provided between the air supply duct and mixed flow case, small cylinder is horizontally mounted in air supply duct inner top, in mixed flow case horizontal guide rail is installed close to the top of flexible pipe side, the both sides of shadowless lamp sleeve pipe in mixed flow case, sound-absorbing packing material, flexible stratum reticulare, interior micropore abatvoix, outer micropore abatvoix are sequentially provided with, high efficiency particulate air filter is uniformly distributed in above equal fluid layer.The present invention has advantages below compared with prior art：The state of the outer micropore deflector of regulation, does not produce new noise during and can guarantee stable state while can realizing quick noise reduction, to air-flow guide properly while effective noise reduction function, global design is reasonable, good muffling effect, practical, suitable for popularizing application.
Description
Technical field
The invention belongs to operating room laminar flow air-supply technical field, and in particular to a kind of hundred grades of laminar flow systems of combined type low noise
System.
Background technology
According to《National Standard of the People's Republic of China》GB50333-2013 clean operating room in hospital portion Building technology specification
Middle regulation laminar flow operating room laminar flow（Hundred grades）Region area is 2400m × 2600m × 600m, i.e. 6.24m3；And to ensure 6.24
Cleanliness factor in square metre region reaches hundred grades of purifications and required；Actual air output will reach the air-conditioning of 9000m3/n constant temperature and humidity
Wind, purity requirements could be met（Bacterium maximum mean concentration is the wares of 0.2/30min Φ 90）, it is desirable to reach with subscript
It is accurate.
At present, universal settling mode such as Fig. 1 of industry（Side view）, including mixed flow case 1 ', the connection of the both sides of mixed flow case 1 '
For the air supply duct 4 ' of air-supply, air supply duct in the pipeline of mixed flow case joint with being provided with hundred grades of high efficiency particulate air filters 2 ', mixed flow
The center section of case 1 ' is provided with the vertical shadowless lamp sleeve pipe 5 ' for running through mixed flow case 1 ', and the bottom of mixed flow case 1 ' is provided with can be with uniform divided flows gas
The equal fluid layer 3 ' of stream；The program can provide the air quantity of the 9000m3/n needed for operating room, by air supply duct through hundred grades of filterings
Device 5 ' is sent into interior so as to ensure that operation patients are performed the operation under basic germ-free condition, greatly reduces postoperative infection
Rate.
But the shortcomings that this laminar flow apparatus is present it is also obvious that first, due to 9000 standing needed for hundred grades of purifications per hour
The clean air quantity of square rice is to ensure air quantity, and so as to cause these air quantity to generate overlapping noise when importing laminar flow case, these are made an uproar
Sound can influence the mental state of medical personnel in the surgical environments of closing, produce mental fatigue；Second, because pure air is being blown into
Some bacteriums that can be taken out of when in laminar flow case in the box member in sedimentation laminar flow case, so as to result in clean operating room after powering very
The amphibolia of long a period of time, and medical personnel only wait this section of amphibolia to be performed the operation later, thus add
Operation preparation time.
The high efficiency particulate air filter of original product is that this can cause the product in mixed flow case in the pipeline being located at outside laminar flow mixed flow case box member
Dirt and bacterium can not effectively clear up, and bring operating room into air-flow and cause secondary pollution.
The content of the invention
The purpose of the present invention is to be directed to existing issue, there is provided a kind of hundred grades of system layer streams of combined type low noise.
The present invention is achieved by the following technical solutions：A kind of hundred grades of system layer streams of combined type low noise, including mixed flow
The air supply duct for air-supply is connected in case, mixed flow case both sides, and mixed flow case center section is provided with the vertical shadowless lamp for running through mixed flow case
Sleeve pipe, mixed flow bottom portion, which is provided with, to be provided with the equal fluid layer of uniform divided flows air-flow between the air supply duct and mixed flow case with sending
Wind pipeline is horizontally mounted small cylinder, in mixed flow case close to the top of flexible pipe side with the flexible pipe of diameter in air supply duct inner top
Install horizontal guide rail in portion；
The both sides of shadowless lamp sleeve pipe in mixed flow case, using top surface and the vertical plane of shadowless lamp sleeve pipe both sides as rigging angle clamp face, successively
Provided with sound-absorbing packing material, flexible stratum reticulare, interior micropore abatvoix, outer micropore abatvoix, wherein interior micropore abatvoix and by flexibility
The sound-absorbing packing material side that stratum reticulare is fixed is the circular arc to rigging angle clamp face indent；
The sliding block that can be moved horizontally in horizontal guide rail is fixedly connected with the top of the outer micropore abatvoix, the side of sliding block passes through company
For extension bar with being connected in small cylinder, small cylinder can drive sliding block to be moved horizontally in horizontal guide rail；
For the sliding block when close to one end of flexible pipe, outer micropore abatvoix is clinoplain, when sliding block is close to shadowless lamp sleeve pipe
Side when, outer micropore abatvoix side be to rigging angle clamp face indent circular arc；
The percent opening of the outer micropore abatvoix is less than the percent opening of interior micropore abatvoix；
The high efficiency particulate air filter is uniformly distributed in above equal fluid layer.
As further improvement of these options, the flexible pipe is sebific duct or bellows, is avoided that and is passed by air supply duct
Pass vibrations, reduce the incoming of noise in mixed flow case.
As further improvement of these options, the sound-absorbing packing material is mineral wool or mineral wool.
As further improvement of these options, the percent opening of the outer micropore abatvoix is 1%；Interior micropore abatvoix
Percent opening be 2%.
As further improvement of these options, between the interior micropore abatvoix and sound-absorbing packing material at intervals of
1.2-2cm, when outer micropore abatvoix is closest from interior micropore abatvoix, between outer micropore abatvoix and interior micropore abatvoix
At intervals of 2.4-4mm.
As further improvement of these options, when the outer micropore abatvoix is clinoplain and the angle of top surface is
35-55 °, outer micropore abatvoix also acts as the effect to air flow guiding in addition to the effect to abate the noise.
As further improvement of these options, the high efficiency particulate air filter is hundred grades of high efficiency particulate air filters.
The present invention has advantages below compared with prior art：
The high efficiency particulate air filter of original product is to be located at laminar flow mixed flow case box member, i.e., in the air supply duct outside mixed flow case, this can cause to mix
Laying dust and bacterium in stream case can not be cleared up effectively, and bring operating room into air-flow and cause secondary pollution, and laminar flow in the system
Device is really arranged in high efficiency particulate air filter the least significant end of air-flow, and the pure air of ultra-clean after high efficiency filter by directly passing through
Field of operation is sent into after flowing, this device can substantially reduce the clean-down capability of original device after improving, improve the use of operating room
Efficiency, reduce the superinfection of operation；
Sliding block is driven by small cylinder in the system, and small cylinder is driven by the air pump in wall, and its magnetic valve is by controlling
Device control processed, when clean operating room is just started shooting, sliding block in horizontal guide rail close to the side of flexible pipe, with prolonging for available machine time
Long, sliding block is finally stably held in horizontal guide rail close to the side of shadowless lamp sleeve pipe, because from prior art, in mixed flow case
The larger pressure loss is had while airflow direction is changed, water conservancy diversion plate benging can reduce noise and turbulent air flow, i.e., outer
When micropore abatvoix is arranged to arcwall face, less, the attenuation reduction, it is possible to reduce the pressure loss, keep away of sound energy reflection echogenicity
Exempt to form noise source while sound attenuation can be realized with combination sound arrester, and it is larger most starting noise, will be outer micro-
Hole abatvoix is arranged to clinoplain, can reflecting part acoustic energy echogenicity, simultaneously because outer micropore abatvoix and interior micropore are inhaled
Space increase between soundboard, has stronger attraction effect, adjusts the state of outer micropore deflector, can realize quick noise reduction
While and can ensure not producing new noise during stable state, it is overall to air-flow guide properly while effective noise reduction function
Reasonable in design, good muffling effect is practical, suitable for popularizing application.
Brief description of the drawings
Fig. 1 is the side view of common system layer stream.
Fig. 2 is the side view of combined type low noise system layer stream.
Fig. 3 is combined type low noise system layer stream mixed flow box-like state one.
Fig. 4 is combined type low noise system layer stream mixed flow box-like state two.
Fig. 5 is combined type low noise system layer stream mixed flow box-like state three.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figures 1-5, a kind of hundred grades of system layer streams of combined type low noise, including mixed flow case 1, the both sides of mixed flow case 1, which are connected, to be used
In the air supply duct 4 of air-supply, the center section of mixed flow case 1 is provided with the vertical shadowless lamp sleeve pipe 5 for running through mixed flow case 1, the bottom of mixed flow case 1
Provided with can be provided with the equal fluid layer 3 of uniform divided flows air-flow, between the air supply duct 4 and mixed flow case 1 and 4 same diameter of air supply duct
Flexible pipe 6, be horizontally mounted small cylinder 11 in the inner top of air supply duct 4, mixed flow case 1 close to the side of flexible pipe 6 top install
Horizontal guide rail 13；
The both sides of shadowless lamp sleeve pipe 5 in mixed flow case 1, using top surface and the vertical plane of the both sides of shadowless lamp sleeve pipe 5 as rigging angle clamp face, according to
It is secondary to be provided with sound-absorbing packing material 10, flexible stratum reticulare 9, interior micropore abatvoix 8, outer micropore abatvoix 7, wherein interior micropore abatvoix 8
It is the circular arc to rigging angle clamp face indent with the side of sound-absorbing packing material 10 fixed from flexible stratum reticulare 9；
The top of outer micropore abatvoix 7 is fixedly connected with the sliding block that can be moved horizontally in horizontal guide rail 13（For routine techniques,
It is to draw herein）, by connecting rod 12 with being connected in small cylinder 11, small cylinder 11 can drive sliding block in water for the side of sliding block
Moved horizontally in level gauge 13；
For the sliding block when close to one end of flexible pipe 6, outer micropore abatvoix 7 is clinoplain, when sliding block is close to shadowless lamp sleeve
During the side of pipe 5, the outer side of micropore abatvoix 7 is the circular arc to rigging angle clamp face indent；
The percent opening of the outer micropore abatvoix 7 is less than the percent opening of interior micropore abatvoix 8；
The high efficiency particulate air filter 2 is uniformly distributed in the equal top of fluid layer 3.
Wherein, the flexible pipe 6 is sebific duct or bellows, is avoided that and is shaken by air supply duct transmission, reduces and is made an uproar in mixed flow case 1
Sound is passed to；The sound-absorbing packing material 10 is mineral wool or mineral wool；The high efficiency particulate air filter 2 is hundred grades of high efficiency particulate air filters；Institute
The percent opening for stating outer micropore abatvoix 7 is 1%；The percent opening of interior micropore abatvoix 8 is 2%；The interior micropore abatvoix 8 and sound-absorbing
Between packing material 9 at intervals of 1.2-2cm, when outer micropore abatvoix 7 is closest from interior micropore abatvoix 8, outer micropore
Between abatvoix 7 and interior micropore abatvoix 8 at intervals of 2.4-4mm.
Wherein, when the outer micropore abatvoix 7 is clinoplain and the angle of top surface is 35-55 °, outer micropore abatvoix 7
The effect to air flow guiding is also acted as in addition to the effect to abate the noise.
The high efficiency particulate air filter 2 ' of original product is to be located at laminar flow mixed flow case box member, i.e., in the air supply duct 4 ' of mixed flow case 1 ' outside,
This can cause laying dust in mixed flow case and bacterium not to clear up effectively, and bring operating room into air-flow and cause secondary pollution, and this
Laminar flow apparatus is really arranged in high efficiency particulate air filter 2 least significant end of air-flow in system, and the pure air of ultra-clean passes through efficient
Field of operation is directly sent into after flowing after filtering 2, this device can substantially reduce the clean-down capability of original device after improving, improve
The service efficiency of operating room, reduce the superinfection of operation；
Sliding block is driven by small cylinder 11 in the system, and small cylinder 11 is driven by the air pump in wall, its magnetic valve
Controlled by control device, when clean operating room is just started shooting, as shown in Figure 5, sliding block in horizontal guide rail close to the side of flexible pipe,
With the extension of available machine time, state as shown in Figure 4 is undergone, sliding block is finally stably held in horizontal guide rail close to shadowless lamp
The side of sleeve pipe 5, state as shown in Figure 3, because from prior art, in mixed flow case while airflow direction is changed
The larger pressure loss is had, water conservancy diversion plate benging can reduce noise and turbulent air flow, i.e., outer micropore abatvoix 7 is arranged to arc
During face, sound energy reflection echogenicity it is less, attenuation reduces, it is possible to reduce the pressure loss, avoids the formation of noise source while can be with
Realize sound attenuation with combination sound arrester, and larger most starting noise, outer micropore abatvoix 7 is arranged to tilt flat
Face, can reflecting part acoustic energy echogenicity, simultaneously because between outer micropore abatvoix 7 and interior micropore abatvoix 8 space increase,
With stronger attraction effect, the state of outer micropore deflector 7 is adjusted, and can ensures stable while can realizing quick noise reduction
New noise is not produced during state, to air-flow guide properly while effective noise reduction function, global design is reasonable, erasure effect
It is good, it is practical, suitable for popularizing application.
Through examining, method is 41 decibels in stable state in embodiment 1, bright compared to 52 decibels of reductions of national regulation
Aobvious, reaching 50 decibels of time, device shortens for 50% or so time in i.e. Fig. 1 compared with prior art.
Embodiment 2
After interior micropore abatvoix is removed on the basis of embodiment 1, in stable state be 45 decibels, reach 50 decibels when
Between compared with prior art be Fig. 1 in device shorten 20% or so time.
Embodiment 3
After removing sound-absorbing packing material and flexible stratum reticulare on the basis of embodiment 1, it is 46 decibels in stable state, reaches
50 decibels of time is the time that device shortens 20% or so in Fig. 1 compared with prior art.
Embodiment 4
Small cylinder and relevant apparatus are removed on the basis of embodiment 1, at the same by outer micropore deflector be adjusted to it is above-mentioned from
The nearest state of interior micropore deflector, i.e., after state as shown in Figure 3, it is 40 decibels in stable state, reaches 50 decibels
Time compared with prior art be Fig. 1 in device shorten 4% or so time.
By analyzing result above, the regulation of outer micropore deflector can greatly shorten be up to state standards when
Between, excellent noise reduction effect, suitable for promoting.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. the ajutage for air-supply is connected in a kind of hundred grades of system layer streams of combined type low noise, including mixed flow case, mixed flow case both sides
Road, mixed flow case center section are provided with the vertical shadowless lamp sleeve pipe for running through mixed flow case, and mixed flow bottom portion is provided with can be with uniform divided flows gas
The equal fluid layer of stream, it is characterised in that the flexible pipe with air supply duct with diameter is provided between the air supply duct and mixed flow case, is being sent
Wind pipeline inner top is horizontally mounted small cylinder, and horizontal guide rail is installed close to the top of flexible pipe side in mixed flow case；
The both sides of shadowless lamp sleeve pipe in mixed flow case, using top surface and the vertical plane of shadowless lamp sleeve pipe both sides as rigging angle clamp face, successively
Provided with sound-absorbing packing material, flexible stratum reticulare, interior micropore abatvoix, outer micropore abatvoix, wherein interior micropore abatvoix and by flexibility
The sound-absorbing packing material side that stratum reticulare is fixed is the circular arc to rigging angle clamp face indent；
The sliding block that can be moved horizontally in horizontal guide rail is fixedly connected with the top of the outer micropore abatvoix, the side of sliding block passes through company
For extension bar with being connected in small cylinder, small cylinder can drive sliding block to be moved horizontally in horizontal guide rail；
For the sliding block when close to one end of flexible pipe, outer micropore abatvoix is clinoplain, when sliding block is close to shadowless lamp sleeve pipe
Side when, outer micropore abatvoix side be to rigging angle clamp face indent circular arc；
The percent opening of the outer micropore abatvoix is less than the percent opening of interior micropore abatvoix；
The high efficiency particulate air filter is uniformly distributed in above equal fluid layer.
A kind of 2. hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the flexible pipe be sebific duct or
Bellows.
A kind of 3. hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the sound-absorbing packing material
For mineral wool or mineral wool.
A kind of 4. hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the outer micropore abatvoix
Percent opening be 1%；The percent opening of interior micropore abatvoix is 2%.
A kind of 5. hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the interior micropore abatvoix
Between sound-absorbing packing material at intervals of 1.2-2cm, it is outer micro- when outer micropore abatvoix is closest from interior micropore abatvoix
Between hole abatvoix and interior micropore abatvoix at intervals of 2.4-4mm.
A kind of 6. hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the outer micropore abatvoix
For clinoplain when and the angle of top surface be 35-55 °.
7. a kind of hundred grades of system layer streams of combined type low noise as claimed in claim 1, it is characterised in that the high efficiency particulate air filter is
Hundred grades of high efficiency particulate air filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738619.6A CN107355970A (en) | 2017-08-25 | 2017-08-25 | A kind of hundred grades of system layer streams of combined type low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738619.6A CN107355970A (en) | 2017-08-25 | 2017-08-25 | A kind of hundred grades of system layer streams of combined type low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355970A true CN107355970A (en) | 2017-11-17 |
Family
ID=60288153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710738619.6A Withdrawn CN107355970A (en) | 2017-08-25 | 2017-08-25 | A kind of hundred grades of system layer streams of combined type low noise |
Country Status (1)
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| CN (1) | CN107355970A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3501472A1 (en) * | 2017-12-20 | 2019-06-26 | Koninklijke Philips N.V. | Aerodynamic rail covers |
| CN110793177A (en) * | 2018-08-01 | 2020-02-14 | 青岛海尔空调器有限总公司 | Air outlet structure of air conditioner and cabinet air conditioner |
| CN111271791A (en) * | 2020-01-21 | 2020-06-12 | 济宁学院 | Dancing room with adjustable temperature and humidity |
| CN111720940A (en) * | 2020-06-04 | 2020-09-29 | 河南豫消建筑消防安装工程有限公司 | Ventilation control system and installation method thereof |
| CN111765619A (en) * | 2020-07-03 | 2020-10-13 | 深圳市旷世伟业工程有限公司 | Central air conditioner noise reduction structure and method thereof |
| CN114646104A (en) * | 2022-03-17 | 2022-06-21 | 江苏利丰空调科技有限公司 | Sheet type silencer capable of being rapidly installed on metal shell for air conditioner |
-
2017
- 2017-08-25 CN CN201710738619.6A patent/CN107355970A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3501472A1 (en) * | 2017-12-20 | 2019-06-26 | Koninklijke Philips N.V. | Aerodynamic rail covers |
| WO2019121181A1 (en) * | 2017-12-20 | 2019-06-27 | Koninklijke Philips N.V. | Aerodynamic rail covers |
| CN111491598A (en) * | 2017-12-20 | 2020-08-04 | 皇家飞利浦有限公司 | Pneumatic guide rail cover |
| US11576831B2 (en) | 2017-12-20 | 2023-02-14 | Koninklijke Philips N.V. | Aerodynamic rail covers |
| US11872165B2 (en) | 2017-12-20 | 2024-01-16 | Koninklijke Philips N.V. | Aerodynamic rail covers |
| CN110793177A (en) * | 2018-08-01 | 2020-02-14 | 青岛海尔空调器有限总公司 | Air outlet structure of air conditioner and cabinet air conditioner |
| CN111271791A (en) * | 2020-01-21 | 2020-06-12 | 济宁学院 | Dancing room with adjustable temperature and humidity |
| CN111720940A (en) * | 2020-06-04 | 2020-09-29 | 河南豫消建筑消防安装工程有限公司 | Ventilation control system and installation method thereof |
| CN111765619A (en) * | 2020-07-03 | 2020-10-13 | 深圳市旷世伟业工程有限公司 | Central air conditioner noise reduction structure and method thereof |
| CN114646104A (en) * | 2022-03-17 | 2022-06-21 | 江苏利丰空调科技有限公司 | Sheet type silencer capable of being rapidly installed on metal shell for air conditioner |
| CN114646104B (en) * | 2022-03-17 | 2023-01-13 | 江苏利丰空调科技有限公司 | Sheet type silencer capable of being rapidly installed on metal shell for air conditioner |
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Application publication date: 20171117 |