CN108223383A - Pressure fluctuation attenuating device, compressor and air conditioner - Google Patents
Pressure fluctuation attenuating device, compressor and air conditioner Download PDFInfo
- Publication number
- CN108223383A CN108223383A CN201810130547.1A CN201810130547A CN108223383A CN 108223383 A CN108223383 A CN 108223383A CN 201810130547 A CN201810130547 A CN 201810130547A CN 108223383 A CN108223383 A CN 108223383A
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- Prior art keywords
- pressure fluctuation
- attenuating device
- main body
- sets
- compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Abstract
The present invention provides a kind of pressure fluctuation attenuating device, compressor and air conditioners.Pressure fluctuation attenuating device includes：Main body is provided with fluid channel in main body and multigroup aperture is different and the sets of vias that is connected with fluid channel, multigroup sets of vias are sequentially arranged along the length direction of fluid channel；Shell, shell are arranged on the periphery of main body, and shell is enclosed with main body to be set to form cavity, and multigroup sets of vias is connected with cavity.The pressure fluctuation attenuating device of the present invention has the different resonant cavity of a variety of frequency of fadings, the resonance bands of medium in pressure fluctuation attenuating device are effectively widened, by the strong resonance of medium in pressure fluctuation attenuating device can the amplitude of pressure fluctuation of helical-lobe compressor be greatly reduced, thus the flow dynamics noise induced is substantially reduced, and then achievees the effect that reduce the vibrating noise of helical-lobe compressor.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of pressure fluctuation attenuating device, compressor and air-conditioning
Device.
Background technology
The purposes of existing helical-lobe compressor, function, form and structure are varied, vibration noise degree and its propagate road
Diameter will be different, and need to be made a concrete analysis of for specific structure type, but its main vibration noise source is still identical.
The noise of helical-lobe compressor can be divided into mechanical noise and flow dynamics noise by mechanism of production, can swash as sound source
It encourages, causes the cyclically-varying of ambient air density, so as to generate strong noise.Meanwhile both noises of different nature
It can also interact, be superimposed, other than directing out boundary's radiated noise, can also encourage the body vibration of compressor, and pass through machine
Foot is transmitted to remaining auxiliary device.
With the raising of machining accuracy and the improvement of assembly technology, the mechanicalness noise of helical-lobe compressor obtains effectively
Improve, but swept volume is periodically connected with suction, discharge chamber in helical-lobe compressor operational process, is detached from and can be caused work
The strong gas of medium so that it inhales, the violent variation (pressure fluctuation) of the thermodynamic property generation of working media in discharge chamber,
Thus the flow dynamics noise induced is the major source of helical-lobe compressor vibrating noise.Air-flow arteries and veins wherein at vent ports
Traverse degree is more violent, therefore can be solved by rationally controlling and improving the amplitude of pressure fluctuation of gas medium in discharge chamber to imitate
The vibrating noise problem of helical-lobe compressor.
The induction mechanism of helical-lobe compressor exhaust gas pressure pulse is：Exhaust process rotor chamber inter-tooth volume and discharge chamber control
The cyclically-varying of the pressure differential of gas and vent ports area causes helical-lobe compressor exhaust airstream to be pulsed in volume processed
Direct inducement, and the week of the gas mass flow in discharge chamber control volume is flowed into rotor chamber inter-tooth volume via vent ports
Phase property changes the variation for resulting in gas thermodynamic parameters in discharge chamber, and then causes exhaust gas pressure pulse.Fig. 1 gives allusion quotation
The frequency domain value and time-domain value of helical-lobe compressor exhaust gas pressure pulse under type operating mode, the fundamental frequency of exhaust gas pressure pulse is negative and positive rotor
Meshing frequency, and the amplitude of pressure fluctuation under rotor meshing frequency is far longer than the pressure arteries and veins under its integer multiple frequency
Dynamic amplitude.Therefore helical-lobe compressor can be reduced by reducing the pressure fluctuation width in discharge chamber under rotor meshing frequency
Vibrating noise.
Inverter screw compressor is directly driven by variable-frequency motor, and capacity regulating is realized by the variation of motor speed.Compared with
For determining frequency helical-lobe compressor, rotation speed change range is wide in the process of running for inverter screw compressor, and rotor meshing frequency can be with
The increase of rotating speed and increase, corresponding exhaust gas pressure pulse frequency also can constantly change.And traditional exhaust gas pressure pulse attenuation
Device can only realize the attenuation of amplitude of pressure fluctuation under a certain specific frequency, and when the fluctuating frequency of pressure constantly changes, it is decayed
Effect is not obvious, and can not meet the active demand that higher attenuation performance is kept under different running speeds.
Invention content
It is existing to solve it is a primary object of the present invention to provide a kind of pressure fluctuation attenuating device, compressor and air conditioner
There is the problem of vibrating noise of the frequency conversion screw in technology is high.
To achieve these goals, according to an aspect of the invention, there is provided a kind of pressure fluctuation attenuating device, packet
It includes：Main body, fluid channel is provided in main body and multigroup aperture is different and the sets of vias that is connected with fluid channel, multigroup sets of vias
It is sequentially arranged along the length direction of fluid channel；Shell, shell are arranged on the periphery of main body, and shell is enclosed with main body to be set to form sky
Chamber, multigroup sets of vias are connected with cavity.
Further, shell encloses the cavity for setting and forming multiple serial communications, multigroup sets of vias and a plurality of cavities one with main body
One accordingly connects to form the different resonant cavity of a variety of frequency of fadings.
Further, shell encloses with main body and sets to form multiple mutually isolated cavitys, multigroup sets of vias and a plurality of cavities one
One accordingly connects to form the different resonant cavity of a variety of frequency of fadings.
Further, each sets of vias includes multiple through-holes, and multiple through-holes arrange that shell is ring along the circumferential array of main body
Shape shell, annular outer cover are set in main body.
Further, the intrinsic frequency fr of resonant cavity, the fluid media (medium) velocity of sound C in fluid channel0, main body wall thickness L, logical
The radius a of each through-hole of hole group, the length D of main body, punching rate P meet equation below：
Further, the punching rate P of each group sets of vias is different.
Further, it is provided with oil drainage structure on shell.
Further, oil drainage structure is oil leak hole.
Further, oil leak hole is one or two or two or more.According to another aspect of the present invention, one kind is provided
Compressor, including pressure fluctuation attenuating device, pressure fluctuation attenuating device is above-mentioned pressure fluctuation attenuating device.
Further, compressor includes host and the discharge chamber being arranged on host outlet, pressure fluctuation attenuating device peace
Mounted in discharge chamber exit.
Further, the both ends of attenuating device are both provided with pressure detecting element.
In accordance with a further aspect of the present invention, a kind of air conditioner is provided, including compressor, compressor is above-mentioned compression
Machine.
It applies the technical scheme of the present invention, pressure fluctuation attenuating device of the invention has that a variety of frequency of fadings are different is total to
Shake chamber, has effectively widened the resonance bands of medium in pressure fluctuation attenuating device, is filled when the pressure fluctuation in the present invention is decayed
Use is put in helical-lobe compressor, when the rotor contact-ratio of helical-lobe compressor changes with rotating speed, forcing frequency still can be at
When in pressure fluctuation attenuating device in the resonance frequency range of medium, pass through the strong resonance of medium in pressure fluctuation attenuating device
So that amplitude of pressure fluctuation is greatly reduced, the flow dynamics noise thus induced is substantially reduced, and then reaches reduction screw rod pressure
The effect of the vibrating noise of contracting machine.
As it can be seen that by the effect of pressure fluctuation attenuating device, helical-lobe compressor can be realized in the range of larger rotation speed change
The reduction of gas pressure pulsation amplitude, efficiently solves the vibration in inverter screw compressor variable speed operational process in discharge chamber
Noise problem.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 diagrammatically illustrates the frequency domain value and time-domain value of helical-lobe compressor exhaust gas pressure pulse under typical condition；
Fig. 2 diagrammatically illustrates the sectional view of the pressure fluctuation attenuating device of the present invention；
Front view when the pressure fluctuation attenuating device that Fig. 3 diagrammatically illustrates the present invention is connected on helical-lobe compressor；
And
Fig. 4 diagrammatically illustrates the pressure fluctuation time-domain value at two pressure detecting elements of the compressor of the present invention.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, main body；11st, fluid channel；12nd, sets of vias；20th, shell；21st, oil drainage structure；30th, resonant cavity；40th, host；
41st, discharge chamber exports；50th, pressure detecting element.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps clearly listed or unit, but may include not listing clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made in opposite description to space used herein above.
Referring to shown in Fig. 2 to Fig. 4, according to an embodiment of the invention, a kind of compressor is provided, the compression in the present embodiment
Machine is preferably inverter screw compressor.
Compressor in the present embodiment includes host 40 and the pressure fluctuation attenuating device being arranged on host 40, the pressure
Pulsation damping device includes main body 10 and shell 20.Wherein, be provided in main body 10 fluid channel 11 and multigroup aperture it is different and
The sets of vias 12 connected with fluid channel 11, multigroup sets of vias 12 are sequentially arranged along the length direction of fluid channel 11；Shell 20
The periphery of main body 10 is arranged on, shell 20 is enclosed with main body 10 to be set to form cavity, and multigroup sets of vias 12 is connected with cavity, compressor work
When making, noise can form the different resonant cavity 30 of a variety of frequency of fadings by pressure fluctuation attenuating device.
The pressure fluctuation attenuating device of the present invention has the different resonant cavity 30 of a variety of frequency of fadings, has effectively widened pressure
The resonance bands of medium in pulsation damping device, when by the pressure fluctuation attenuating device use in the present embodiment in helical-lobe compressor
In, when the rotor contact-ratio of helical-lobe compressor changes with rotating speed, forcing frequency still can be in pressure fluctuation attenuating device
When in the resonance frequency range of medium, the strong resonance amplitude of pressure fluctuation by medium in pressure fluctuation attenuating device is big
Width reduces, and the flow dynamics noise thus induced is substantially reduced, and then reaches the effect for the vibrating noise for reducing helical-lobe compressor
Fruit.
As it can be seen that by the effect of pressure fluctuation attenuating device, helical-lobe compressor can be realized in the range of larger rotation speed change
The reduction of gas pressure pulsation amplitude, efficiently solves the vibration in inverter screw compressor variable speed operational process in discharge chamber
Noise problem.
During actual design, in a kind of preferred embodiment of the present invention, but cause shell 20 in the periphery of main body 10
The cavity for setting and forming multiple serial communications is enclosed, multigroup sets of vias 12 connects to form a variety of attenuation with a plurality of cavities correspondingly
The different resonant cavity 30 of frequency.The cavity of multiple serial communications in the present invention can be by 20 direct buckle closure of shell in main body 10
The outside for being provided with above-mentioned multiple sets of vias 12 set the cavity to be formed and obtain, it is simple in structure, be easy to implement, such as Fig. 1 institutes
Show.
In another preferred embodiment of the present invention, it is also possible that shell 20 sets to be formed in the outside of main body 10
Multiple mutually isolated cavitys, multigroup sets of vias 12 connect different to form a variety of frequency of fadings correspondingly from a plurality of cavities
Resonant cavity 30, as long as the present invention design under other modes of texturing, within protection scope of the present invention.
As shown in Figure 1, in the present embodiment, resonant cavity 30 is set as 3, certainly, in the other embodiment of the present invention
In, resonant cavity 30 can also be set as to two or three or more, can specifically be set according to the use demand of helical-lobe compressor
It is fixed.
Pipeline of the main body 10 for a center opening in the present embodiment, the center opening of the pipeline form above-mentioned fluid
Channel 11 opens up the different sets of vias 12 in above-mentioned aperture on the tube wall of the pipeline of center opening, simple in structure, convenient for reality
It is existing.
Shown in Figure 2, each sets of vias 12 in the present embodiment includes multiple through-holes, week of multiple through-holes along main body 10
It is arranged to array, accordingly, shell 20 is annular outer cover, and annular outer cover is set in main body 10, convenient in the periphery of main body 10
It encloses and sets to form resonant cavity 30, it is simple in structure, it is easy to implement.
Contain micro lubricating during the work time in view of helical-lobe compressor, the volume of resonant cavity 30 can be influenced so that altogether
It shakes the resonant frequency off-design value of medium in chamber 30, so as to influence the attenuating of pressure fluctuation.Thus in the present embodiment
Shell 20 on be provided with oil drainage structure 21, by the effect of the oil drainage structure 21, convenient for the lubricating oil in resonant cavity 30 is arranged
Go out, ensure the lubricating oil energy free flow in resonant cavity 30, make the lubricating oil in resonant cavity 30 in time from gas attenuator
Oil drainage structure 21 discharge.
Preferably, the oil drainage structure 21 in the present embodiment is oil leak hole, during actual design, oil leak hole for one or two or
It is more than two.
For pressure fluctuation is decayed in the source of generation of the pressure fluctuation of helical-lobe compressor, the present embodiment as far as possible
Device is mounted at helical-lobe compressor discharge chamber outlet 41, and pressure detecting member has been added at the both ends of pressure fluctuation attenuating device
Part 50, the pressure detecting element are preferably high-frequency pressure sensor, wherein the right side in Fig. 3 is high-frequency pressure sensor
P1, left side are high-frequency pressure sensor P2.It is combined by the phase difference of pressure signal that two pressure sensors of P1 and P2 measure
The mounting distance of pressure sensor can obtain the real velocity of sound of working media in fluid channel 11, according to consolidating for single resonant cavity 30
The computational methods for having frequency are designed its structural parameters.
Wherein, the intrinsic frequency fr of resonant cavity 30, the fluid media (medium) velocity of sound C in fluid channel 110, main body 10 wall thickness L,
The radius a of each through-hole of sets of vias 12, the length D of main body 10, punching rate P meet formulaWherein,
Punching rate P refers to what the gross area of the sum of area of each through-hole in each group sets of vias 12 divided by corresponding osseotomy site obtained
Value.And the punching rate P of each group sets of vias 12 is different, convenient for forming the different resonant cavity 30 of frequency of fadings.
It in addition, can also be as the pressure signal that two pressure sensors of P1 and P2 measure to the wideband pressure arteries and veins obtained by design
The performance of dynamic attenuating device carries out analysis calculating.From fig. 4, it can be seen that after installation pressure fluctuation attenuating device, screw rod pressure can be made
Amplitude of pressure fluctuation in the discharge chamber of contracting machine is effectively reduced, and meets the noise reduction demand of inverter screw compressor.
According to another aspect of the present invention, a kind of air conditioner is provided, the air conditioner in the present embodiment includes compressor, pressure
Contracting machine is above-mentioned compressor.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
The central hole of the main body of the pressure fluctuation attenuating device of the present invention offers sets of vias and shell on the wall of main body
On cavity connection, formed pressure fluctuation resonant cavity, decay amplitude of pressure fluctuation, can effectively reduce flow dynamics noise.It is logical
It crosses and invents a kind of broadband exhaust gas pressure pulse attenuating device, since the pressure fluctuation attenuating device has wider resonant frequency
Range, when helical-lobe compressor operation speed change variation, rotor meshing frequency still can be at medium in pressure fluctuation attenuating device
In resonance frequency range so that the exhaust gas pressure pulse amplitude in variable speed operational process can be effectively reduced, thus
The flow dynamics noise of induction is substantially reduced.The apparatus structure is simple simultaneously, at low cost, does not need to carry out compressor arrangement
It larger change and can install and use.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of pressure fluctuation attenuating device, which is characterized in that including：
Main body (10), be provided on the main body (10) fluid channel (11) and multigroup aperture it is different and with the fluid channel
(11) sets of vias (12) of connection, multigroup sets of vias (12) are sequentially arranged along the length direction of the fluid channel (11)；
Shell (20), the shell (20) are arranged on the periphery of the main body (10), the shell (20) and the main body (10)
It encloses and sets to form cavity, multigroup sets of vias (12) connects with the cavity.
2. pressure fluctuation attenuating device according to claim 1, which is characterized in that the shell (20) and the main body
(10) cavity for setting and forming multiple serial communications is enclosed, multigroup sets of vias (12) connects correspondingly with multiple cavitys
To form the different resonant cavity of a variety of frequency of fadings (30).
3. pressure fluctuation attenuating device according to claim 1, which is characterized in that the shell (20) and the main body
(10) it encloses and sets to form multiple mutually isolated cavitys, multigroup sets of vias (12) connects correspondingly with multiple cavitys
To form the different resonant cavity of a variety of frequency of fadings (30).
4. pressure fluctuation attenuating device according to claim 1, which is characterized in that each sets of vias (12) includes more
A through-hole, the multiple through-hole along the main body (10) circumferential array arrange, the shell (20) be annular outer cover, the ring
Shape shell is set in the main body (10).
5. the pressure fluctuation attenuating device according to Claims 2 or 3, which is characterized in that the resonant cavity (30) it is intrinsic
Frequency fr, fluid media (medium) velocity of sound C in the fluid channel (11)0, the wall thickness L of the main body (10), the sets of vias (12)
The radius a of each through-hole, the length D of the main body (10), punching rate P meet equation below：
6. pressure fluctuation attenuating device according to claim 1, which is characterized in that the punching rate P of sets of vias described in each group
It is different.
7. pressure fluctuation attenuating device according to any one of claim 1 to 4, which is characterized in that the shell (20)
On be provided with oil drainage structure (21).
8. pressure fluctuation attenuating device according to claim 7, which is characterized in that the oil drainage structure (21) is draining
Hole.
9. pressure fluctuation attenuating device according to claim 8, which is characterized in that the oil leak hole for one or two or
It is more than two.
10. a kind of compressor, including pressure fluctuation attenuating device, which is characterized in that the pressure fluctuation attenuating device is right
It is required that the pressure fluctuation attenuating device described in any one of 1 to 9.
11. compressor according to claim 10, which is characterized in that the compressor includes host (40) and is arranged on institute
The discharge chamber outlet (41) on host (40) is stated, the pressure fluctuation attenuating device is mounted at discharge chamber outlet (41).
12. compressor according to claim 10, which is characterized in that the both ends of the attenuating device are both provided with pressure inspection
Survey element (50).
13. a kind of air conditioner, including compressor, which is characterized in that the compressor is any one of claim 10 to 12 institute
The compressor stated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130547.1A CN108223383A (en) | 2018-02-08 | 2018-02-08 | Pressure fluctuation attenuating device, compressor and air conditioner |
| PCT/CN2018/120369 WO2019153871A1 (en) | 2018-02-08 | 2018-12-11 | Pressure pulsation attenuating device, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810130547.1A CN108223383A (en) | 2018-02-08 | 2018-02-08 | Pressure fluctuation attenuating device, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223383A true CN108223383A (en) | 2018-06-29 |
Family
ID=62671127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810130547.1A Pending CN108223383A (en) | 2018-02-08 | 2018-02-08 | Pressure fluctuation attenuating device, compressor and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108223383A (en) |
| WO (1) | WO2019153871A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980049A (en) * | 2018-09-17 | 2018-12-11 | 西安交通大学 | A kind of helical-lobe compressor gas attenuating device |
| CN109737066A (en) * | 2018-12-29 | 2019-05-10 | 烟台菱辰能源有限公司 | A kind of fuel cell air compressor silencing apparatus |
| 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 |
| CN112987508A (en) * | 2021-03-04 | 2021-06-18 | 长鑫存储技术有限公司 | Vibration damping structure and exposure apparatus |
| WO2022037126A1 (en) * | 2020-08-19 | 2022-02-24 | 珠海格力电器股份有限公司 | Gas flow pulsation damping device, and screw compressor having same |
| US11402123B2 (en) * | 2017-06-28 | 2022-08-02 | 3M Innovative Properties Company | Microperforated conduit |
| US11808264B2 (en) | 2018-10-02 | 2023-11-07 | Carrier Corporation | Multi-stage resonator for compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212603A (en) * | 1963-10-24 | 1965-10-19 | Walker Mfg Co | Muffler with tuned silencing chambers |
| CN201972764U (en) * | 2011-02-15 | 2011-09-14 | 中国航空工业集团公司西安飞机设计研究所 | Exhaust muffler utilizing nonlocal reaction acoustic liner principle for auxiliary power unit |
| CN206111279U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Car premuffler structure |
| CN206111278U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Car exhaust system premuffler |
| CN106715849A (en) * | 2014-09-09 | 2017-05-24 | 3M创新有限公司 | Acoustic device |
| CN208010597U (en) * | 2018-02-08 | 2018-10-26 | 珠海格力电器股份有限公司 | Pressure fluctuation attenuating device, compressor and air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204100531U (en) * | 2014-08-26 | 2015-01-14 | 芜湖美智空调设备有限公司 | Air-conditioner and silencer thereof |
| CN205714785U (en) * | 2016-04-26 | 2016-11-23 | 西安交通大学苏州研究院 | A kind of helical-lobe compressor exhaust airstream pulsation dampening and screw compressor system |
| CN207004830U (en) * | 2017-06-20 | 2018-02-13 | 苏州艾柏特精密机械有限公司 | A kind of inverter screw compressor gas attenuator |
| CN108223383A (en) * | 2018-02-08 | 2018-06-29 | 珠海格力电器股份有限公司 | Pressure fluctuation attenuating device, compressor and air conditioner |
-
2018
- 2018-02-08 CN CN201810130547.1A patent/CN108223383A/en active Pending
- 2018-12-11 WO PCT/CN2018/120369 patent/WO2019153871A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212603A (en) * | 1963-10-24 | 1965-10-19 | Walker Mfg Co | Muffler with tuned silencing chambers |
| CN201972764U (en) * | 2011-02-15 | 2011-09-14 | 中国航空工业集团公司西安飞机设计研究所 | Exhaust muffler utilizing nonlocal reaction acoustic liner principle for auxiliary power unit |
| CN106715849A (en) * | 2014-09-09 | 2017-05-24 | 3M创新有限公司 | Acoustic device |
| CN206111279U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Car premuffler structure |
| CN206111278U (en) * | 2016-10-25 | 2017-04-19 | 力帆实业(集团)股份有限公司 | Car exhaust system premuffler |
| CN208010597U (en) * | 2018-02-08 | 2018-10-26 | 珠海格力电器股份有限公司 | Pressure fluctuation attenuating device, compressor and air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 《化工百科全书》编辑委员会: "《化工百科全书（第19卷）》", 化学工业出版社, pages: 364 * |
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| 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 |
| CN108980049A (en) * | 2018-09-17 | 2018-12-11 | 西安交通大学 | A kind of helical-lobe compressor gas attenuating device |
| CN108980049B (en) * | 2018-09-17 | 2023-09-26 | 西安交通大学 | Air flow pulsation attenuation device of screw compressor |
| US11808264B2 (en) | 2018-10-02 | 2023-11-07 | Carrier Corporation | Multi-stage resonator for compressor |
| CN109737066A (en) * | 2018-12-29 | 2019-05-10 | 烟台菱辰能源有限公司 | A kind of fuel cell air compressor silencing apparatus |
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| CN112987508A (en) * | 2021-03-04 | 2021-06-18 | 长鑫存储技术有限公司 | Vibration damping structure and exposure apparatus |
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