CN207004830U - A kind of inverter screw compressor gas attenuator - Google Patents
A kind of inverter screw compressor gas attenuator Download PDFInfo
- Publication number
- CN207004830U CN207004830U CN201720715356.2U CN201720715356U CN207004830U CN 207004830 U CN207004830 U CN 207004830U CN 201720715356 U CN201720715356 U CN 201720715356U CN 207004830 U CN207004830 U CN 207004830U
- Authority
- CN
- China
- Prior art keywords
- fluid
- main pipeline
- gas
- conveying main
- cavity
- 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.)
- Active
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of inverter screw compressor gas attenuator,Mainly include fluid conveying main pipeline and sealed outer pipe wall,At least two sealing single-chambers are formed between outer tube wall and fluid the conveying main pipeline,One group of perforation is at least opened up on the fluid conveying main pipeline,Connected with sealing single-chamber,Separated between the closing chamber and closing chamber with baffle plate,If internal gas flow carries lubricating oil,Cavity bottom can retain certain connected space,The lubricating oil energy free flow being easy in each closed cavity,Perforation on the utility model fluid conveying main pipeline forms gas damping chamber with closed cavity,It is in parallel between gas damping chamber,Frequency of noise elimination scope is wider,It can be widely used in frequency-changeable compressor suction and discharge system,Decay suction and discharge gas,Reducing vibration reduces noise,Gas damping chamber is integrated on fluid conveying main pipeline,It is compact-sized,Small volume,Manufacture is installed workable,Effect of vibration and noise reduction is good.
Description
Technical field
It the utility model is related to fluid machinery noise reduction technology neck, more particularly to a kind of inverter screw compressor air-flow arteries and veins
Dynamic attenuator.
Background technology
Helmholtz resonator is a kind of conventional pulsation abatement device, because Helmholtz resonator can only be to single frequency
The gas of rate is decayed, and is of limited application, and therefore, Ma Dayou academician proposes microperforated panel soundabsorbing construction, further
Widen gas frequency of fadings bandwidth.And compressor is in the process of running with the rotating speed meeting for changing compressor of operating condition
Change therewith, so that the stimulating frequency of pipeline interior air-flow pulsation changes, therefore, realize gas attenuator decay frequency
Rate meets compressor gas under variable working condition with the dynamic regulation of rotating speed or the attenuation frequency ranges of broadening gas attenuator
The purpose that the decay of stream pulsation reaches vibration and noise reducing seems most important.
Chinese patent CN101539231B discloses a kind of Frequency Adjustable based on the perforated tube silencer with chadless
Silencer.It includes cylinder, the perforated pipe being arranged among cylinder, and fixes sleeve and moving sleeve, cylinder are provided with cylinder
First annular resonant cavity is formed between fixes sleeve, moving sleeve, is formed between fixes sleeve, moving sleeve and perforated pipe
Two resonant cavities, moving sleeve are connected with moving sleeve axial location governor motion, and the silencer is mainly used in reducing charging line
Middle and low frequency noise in system, due to frequency-adjustable, the noise elimination frequency band of silencer can be effectively widened, while can be according to noise
The difference of frequency carrys out the frequency of noise elimination of accurate adjustment silencer, so as to the soundproof effect for making silencer reach optimal.But press
Running speed can change according to application working conditions change in contracting machine running, and the silencer can not realize that automatic adjusument disappears
Acoustic frequency limits its practical application on the compressor, it is necessary to on-site manual regulation.In addition, the acoustic wave filter structure is complicated, body
Product is larger, and manufacture and maintenance are inconvenient, is unfavorable for above pushing away in such as helical-lobe compressor gas control of middle-size and small-size rotating machinery
Wide application.
Utility model content
The technical problem that the utility model solves, which is to provide, a kind of overcomes what existing compressor air-discharging gas induced to shake
Dynamic and noise problem, reduce a kind of inverter screw compressor gas attenuator of the gas amplitude of compressor.
Technical scheme is used by the utility model solves its technical problem：A kind of inverter screw compressor gas
Attenuator, including the fluid conveying main pipeline and sealed outer pipe wall, the fluid that are conveyed for compressor fluid convey main pipeline
Seal cavity is formed between sealed outer pipe wall, the number of the seal cavity is multiple, there is equipment between each seal cavity
Dividing plate, the fluid convey and at least open up one group of perforation connected with seal cavity on main pipeline so that fluid conveys main pipeline
Inner chamber and seal cavity form gas resonant cavity, fluid conveying main pipeline one end is provided with fluid intake, described
Fluid conveying main pipeline (1) can be the same or different with the size of compressor fluid entrance (6), the sealed outer pipe
Size of the wall (2) between each cavity section can be the same or different.
It is further：The piercing aperture of the fluid conveying main pipeline is between 0.1mm to 5mm, and punching rate is 0.1%
To between 5%.
It is further：The bottom connection of each seal cavity, seal cavity are provided with away from fluid intake one end
Fluid issuing, height of the fluid issuing higher than connection below baffle plate.
It is further：Total equivalent area of perforation is more than in that cavity of fluid issuing in the seal cavity
The sectional area of fluid intake.
The beneficial effects of the utility model are：The utility model aims to solve the problem that the gas problem of compressor, it is proposed that
A kind of frequency-changeable compressor gas attenuator, based on Helmholtz gas resonator principle, resonated using gas
Device broadening gas attenuation frequency ranges in parallel, reach the purpose that decay gas reduces vibration noise.The utility model
Frequency-changeable compressor gas attenuator structure it is simple, manufacture installation workable, effect of vibration and noise reduction is good.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is three dimensional structure diagram of the present utility model.
Fig. 3 is Fig. 2 embodiment schematic diagrams.
In figure mark for：Fluid conveying main pipeline 1, sealed outer pipe wall 2, perforation 3, seal cavity 4, baffle plate 5, fluid intake
6th, fluid issuing 7.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
Helical-lobe compressor is a kind of rotary type displacement compressor, the intermeshing of its yin, yang rotor and synchronous rotary, forms work
Make the volume change of chamber, so as to realize air-breathing, compression, the course of work being vented.Compressor cycle is inhaled, exhaust can cause pipeline
The cyclic fluctuation of interior gas pressure and flow, i.e. gas.The gas phenomenon of compressor air-discharging is former by its work
What reason determined, it is difficult to the eliminating gas flow pulsation in compressor operation.Therefore, decay air-flow arteries and veins is exported in compressor air-discharging
Vibration of compressor and noise problem dynamic, that control gas induces, are the optimal selections for solving vibration of compressor noise problem,
Therefore frequency-changeable compressor gas attenuator described in the utility model is directly installed on the air exit of compressor, maximum limit
The gas of the fall-off compression machine of degree, improve the vibration noise of compressor.
A kind of inverter screw compressor gas attenuator as shown in Figure 1 to Figure 2, including it is defeated for compressor fluid
The fluid conveying main pipeline 1 and sealed outer pipe wall 2 sent, the fluid conveying main pipeline 1 can be with compressor fluid conveyance conduit
It is identical can also be different, size of the sealed outer pipe wall 2 between each cavity section can be the same or different, the stream
Body conveys and seal cavity 4 is formed between main pipeline 1 and sealed outer pipe wall 2, the number of the seal cavity 4 be it is multiple, it is described close
The number for sealing cavity 4 can be 2,3,4 etc., and dividing plate, the fluid conveying supervisor are provided between each seal cavity 4
One group of perforation 3 connected with seal cavity 4 is at least opened up on the inner chamber in road 1 so that fluid conveys main pipeline 1 and seal cavity 4
Gas resonant cavity is formed, described fluid conveying main pipeline 1 one end is provided with fluid intake 6.
The operation principle of said structure is：Compressor suction and discharge system is entered by the fluid intake 6 of gas attenuator
Enter in gas attenuator, fluid enters closed cavity by the perforation 3 on fluid conveying main pipeline 1, due to perforation 3 and envelope
Closed chamber body forms Helmholtz gas damping chamber, and the gas to compressor decays, due to each gas
The frequency of fadings of damping chamber difference, it is in parallel after not only attenuation frequency ranges widen, and decaying amplitudes also increased.
On the basis of the above, between 0.1mm to 5mm, punching rate exists in the aperture of perforation 3 of the fluid conveying main pipeline 1
Between 0.1% to 5%, the aperture of perforation 3 can be with identical also different from punching rate on the main pipeline between each cavity.
On the basis of the above, the bottom connection of each seal cavity 4, seal cavity 4 are set away from the one end of fluid intake 6
Fluid issuing 7 is equipped with, the fluid issuing 7 is micro- due to containing during compressor air-discharging higher than the height that the lower section of baffle plate 5 connects
Lubricating oil is measured, over time, can accumulate inside gas attenuator, take the cavity body of gas damping chamber
Product, the frequency of fadings of gas damping chamber can be offset, the attenuating of gas damping chamber be influenceed, so under baffle plate 5
Side connects, and the lubricating oil in each gas damping chamber is flowed freely, is discharged by fluid issuing 7, and fluid issuing 7 is high
In the height of the lower section of baffle plate 5 connection, you can so that the lubricating oil in each cavity flows freely, and can seals gas in each closed cavity
Body.
On the basis of the above, in the seal cavity 4 close to fluid issuing 7 that cavity in perforation 3 total equivalent face
Product is more than the sectional area of fluid intake 6, and such a design can reduce the pressure loss of system as far as possible.
The utility model considers the periodic characteristic of compressor airflow pulsation comprehensively, has taken into full account compressor actual motion
During the air motion frequency offset problem that brings of rotation speed change, and long-pending oil problem in gas attenuator, based on conspicuous
Mu Huozi gas resonator principles, using gas damping chamber broadening gas frequency of fadings in parallel, reach decay
Gas reduces the purpose of vibration noise, and operation principle is as shown in Figure 3.
Examples detailed above implements more just for an application example of inverter screw compressor for invariable frequency compressor
Add easy and effective.The other utility model adjusts the aperture of perforation 3 of perforated pipe, perforated according to the gas characteristic of compressor
The parameter such as rate and the size of closed cavity, can also be applied in reciprocating compressor, screw compressor and centrifugal compressor
Deng product.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
Step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, it is all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements done etc., it all should wrap
It is contained within the scope of protection of the utility model.
Claims (4)
- A kind of 1. inverter screw compressor gas attenuator, it is characterised in that：Including the stream conveyed for compressor fluid Body conveying main pipeline (1) and sealed outer pipe wall (2), formed between the fluid conveying main pipeline (1) and sealed outer pipe wall (2) close Cavity (4) is sealed, the number of the seal cavity (4) is multiple, and dividing plate, the fluid are provided between each seal cavity (4) One group of perforation (3) connected with seal cavity (4) is at least opened up on conveying main pipeline (1) so that fluid conveying main pipeline (1) Inner chamber and seal cavity (4) form gas resonant cavity, and described fluid conveying main pipeline (1) one end is provided with fluid intake (6), the fluid conveying main pipeline (1) can be the same or different with the size of compressor fluid entrance (6), described Size of the sealed outer pipe wall (2) between each cavity section can be the same or different.
- A kind of 2. inverter screw compressor gas attenuator as claimed in claim 1, it is characterised in that：The fluid is defeated Sending perforation (3) aperture of main pipeline (1), punching rate is between 0.1% to 5% between 0.1mm to 5mm.
- A kind of 3. inverter screw compressor gas attenuator as claimed in claim 1, it is characterised in that：It is described each close The bottom connection of cavity (4) is sealed, seal cavity (4) is provided with fluid issuing (7), the fluid away from fluid intake (6) one end Export the height of (7) higher than connection below baffle plate (5).
- A kind of 4. inverter screw compressor gas attenuator as described in any one of claims 1 to 3, it is characterised in that： Total equivalent area of perforation (3) is more than fluid intake in that cavity of fluid issuing (7) in the seal cavity (4) (6) sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720715356.2U CN207004830U (en) | 2017-06-20 | 2017-06-20 | A kind of inverter screw compressor gas attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720715356.2U CN207004830U (en) | 2017-06-20 | 2017-06-20 | A kind of inverter screw compressor gas attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004830U true CN207004830U (en) | 2018-02-13 |
Family
ID=61447273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720715356.2U Active CN207004830U (en) | 2017-06-20 | 2017-06-20 | A kind of inverter screw compressor gas attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004830U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163099A (en) * | 2018-09-21 | 2019-01-08 | 国网湖南省电力有限公司 | A kind of rotating machinery low noise sealing structure of shaft end |
| WO2019153871A1 (en) * | 2018-02-08 | 2019-08-15 | 珠海格力电器股份有限公司 | Pressure pulsation attenuating device, compressor and air conditioner |
| CN113417829A (en) * | 2021-07-09 | 2021-09-21 | 同济大学 | Design method of multi-cavity muffler for fuel cell vehicle |
| CN114704703A (en) * | 2022-03-15 | 2022-07-05 | 中国船舶重工集团公司第七一一研究所 | Water pipeline silencing device, silencing method and ship |
| CN115410546A (en) * | 2022-11-02 | 2022-11-29 | 北京亿华通科技股份有限公司 | Fuel cell silencing device and fuel cell system |
| WO2024037331A1 (en) * | 2022-08-16 | 2024-02-22 | 江森自控空调冷冻设备(无锡)有限公司 | Screw compressor |
-
2017
- 2017-06-20 CN CN201720715356.2U patent/CN207004830U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153871A1 (en) * | 2018-02-08 | 2019-08-15 | 珠海格力电器股份有限公司 | Pressure pulsation attenuating device, compressor and air conditioner |
| CN109163099A (en) * | 2018-09-21 | 2019-01-08 | 国网湖南省电力有限公司 | A kind of rotating machinery low noise sealing structure of shaft end |
| CN109163099B (en) * | 2018-09-21 | 2021-03-02 | 国网湖南省电力有限公司 | Low-noise shaft end sealing structure for rotary machine |
| CN113417829A (en) * | 2021-07-09 | 2021-09-21 | 同济大学 | Design method of multi-cavity muffler for fuel cell vehicle |
| CN114704703A (en) * | 2022-03-15 | 2022-07-05 | 中国船舶重工集团公司第七一一研究所 | Water pipeline silencing device, silencing method and ship |
| CN114704703B (en) * | 2022-03-15 | 2023-10-13 | 中国船舶集团有限公司第七一一研究所 | Water pipeline silencing device, silencing method and ship |
| WO2024037331A1 (en) * | 2022-08-16 | 2024-02-22 | 江森自控空调冷冻设备(无锡)有限公司 | Screw compressor |
| CN115410546A (en) * | 2022-11-02 | 2022-11-29 | 北京亿华通科技股份有限公司 | Fuel cell silencing device and fuel cell system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207004830U (en) | A kind of inverter screw compressor gas attenuator | |
| CN110397572A (en) | Muffler, compressor and air conditioner | |
| CN106382231A (en) | Active screw compressor gas pulsation attenuating device | |
| CN107120288A (en) | A kind of exhaust silencer for screw unit | |
| CN205714785U (en) | A kind of helical-lobe compressor exhaust airstream pulsation dampening and screw compressor system | |
| CN202707196U (en) | Automobile low-frequency silencer | |
| CN206320013U (en) | A kind of full-sealed reciprocating compressor cylinder block | |
| CN208651081U (en) | Alleviate exhaust gas pressure pulse device and the air conditioner using it | |
| CN103925190B (en) | Improve the freezer compressor air suction silencer of gettering efficiency | |
| CN204878084U (en) | Mining axial compressor of disrotatory in pit blowing system of ventilation machine silencer | |
| CN104500195A (en) | Engine | |
| CN106401965A (en) | Exhaust bearing block and screw compressor | |
| CN203584729U (en) | Helmholtz type silencer | |
| CN204511894U (en) | Exhaust airstream pulsation damping device and screw compressor system thereof | |
| CN203202508U (en) | Pipeline air exhausting sound eliminator for nuclear power station | |
| CN104778366B (en) | A kind of computational methods of tubular porous H types hydraulic filter intrinsic frequency | |
| CN208474122U (en) | The silencing means of Roots blower | |
| CN108150384A (en) | A kind of air-breathing noise-reducing structure for compressor | |
| CN105134555A (en) | Compressor air sucking and sound reduction device with three cavities arranged side by side | |
| CN206917701U (en) | Exhaust silencer and gas extraction system | |
| CN201753417U (en) | Vacuum pipeline silencer | |
| CN209370052U (en) | A kind of exhausting and denoising device and compressor | |
| CN104832249A (en) | Novel buffer impedance type silencer | |
| CN205373174U (en) | Knockout and compressor | |
| CN207174182U (en) | A kind of exhaust muffling device for vacuum packing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |