CN204877858U - Formula compressor muffler of breathing in is arranged side by side in three chambeies - Google Patents
Formula compressor muffler of breathing in is arranged side by side in three chambeies Download PDFInfo
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- CN204877858U CN204877858U CN201520683687.3U CN201520683687U CN204877858U CN 204877858 U CN204877858 U CN 204877858U CN 201520683687 U CN201520683687 U CN 201520683687U CN 204877858 U CN204877858 U CN 204877858U
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- silencing cavity
- chambeies
- chamber
- housing
- formula compressor
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Abstract
The utility model provides a breather pipe, characterized by: that formula compressor muffler of breathing in is arranged side by side in three chambeies including a casing and one and casing matched with side cap, is equipped with in the middle part of the casing and arranges perpendicularly be equipped with left and right vertical division plate in the casing, separate the inner chamber of casing for a left side breathe in chamber, well amortization chamber, right amortization chamber, form three chambeies arrangement structure side by side, be provided with the flat trachea in two genshui different in size in well amortization chamber, one of them root length trachea for the breathing pipe run through in the amortization chamber, the both ends mouth of breathing pipe communicates a left side breathe in chamber and right amortization chamber respectively, another brachytracheae for the transition pipe communicate in amortization chamber and right amortization chamber, left and right vertical division plate and side cap sealing connection, the side cap is connected with housing seal to correspond on the casing or on the side cap and inhale the chamber and open and have the induction port, the utility model discloses optimize the die cavity structure and the pipeline overall arrangement of the muffler of breathing in, improved noise cancelling effect to ability reduction in production cost improves inspiratory stability and breathes in efficiency.
Description
Technical field
The utility model relates to refrigeration compressor component, and especially a kind of three chambeies are arranged side by side formula compressor air suction silencer.
Background technique
Air suction silencer is one of important accessory in reciprocating hermetic refrigerant compression, and it can reduce the running noises of compressor, effectively can improve the working efficiency of compressor simultaneously.All the time, people utilize various Technology effort to improve the anti-acoustic capability of air suction silencer, and propose multiple technologies scheme, these schemes achieve certain technique effect, but still there is various problem, one of most distinct issues are that inhalation resistance increases, one of representative design is published CN102720655A utility model patent, it than before technology had larger progress, particularly go up, enlarge markedly compared with the mentality of designing that space and the employing in prior art of lower anechoic chamber increase pipeline, and the path length of whole suction line, significantly can reduce the inhalation resistance of suction line.But it still exists certain defect, the layout of its die cavity and pipeline is reasonable not, affects sound-deadening and noise-reducing effect, particularly horizontal baffle structure and cap portion structure more complicated, add cost of production.
Summary of the invention
It is large that the purpose of this utility model will solve existing air suction silencer inhalation resistance exactly, the problems such as topology layout is unreasonable affects erasure effect, complex structure, cost of production increase, provides a kind of three chambeies to be arranged side by side formula compressor air suction silencer.
Concrete scheme of the present utility model is: a kind of three chambeies are arranged side by side formula compressor air suction silencer, include a housing and a side cover matched with housing, portion is provided with vertically arranged breathing pipe in the housing, it is characterized in that: be provided with a left side in the housing, right vertical partition plate, the inner chamber of housing is divided into left air aspiration cavity, middle silencing cavity, right silencing cavity, form three chambeies to be arranged side by side structure, two horizontal tracheaes different in size are provided with in middle silencing cavity, wherein a long air pipe is that sucking pipe runs through middle silencing cavity, the two-port of sucking pipe is communicated with left air aspiration cavity and right silencing cavity respectively, another root brachytracheae is silencing cavity and right silencing cavity during transition tube is communicated with, described left and right vertical dividing plate and side cover are tightly connected, side cover is connected with housing seal, and on housing or on side cover, corresponding chamber of inhaling has intakeport.
On side cover described in the utility model, corresponding breathing pipe place has slot to make way.
Lower end mouth at breathing pipe in the utility model is provided with filter screen.
In described in the utility model, the volume of silencing cavity is more than or equal to left air aspiration cavity and right silencing cavity volume sum, and left air aspiration cavity is suitable with right silencing cavity volume.
Breathing pipe described in the utility model, sucking pipe, transition tube three length of tube have following multiplying power relation: set breathing pipe length as L, then sucking pipe length is L
1=3L, transition tube length
Leakage opening is distributed with in left air aspiration cavity, middle silencing cavity, right silencing cavity three chamber vertical direction lower ends in the utility model.
The wall of side cover described in the utility model is arc shaped surface.
Sealed groove structure is provided with at the corresponding left and right dividing plate of the inwall of side cover in the utility model.
Side cover described in the utility model and housing surrounding edge adopt sealed convex edge and chimb caulking groove structure to fasten and seal.
Outside is extended in the upper end of breathing pipe described in the utility model, and it is 26.85 ~ 27.85mm that the degree of depth in middle silencing cavity is stretched in lower end, and breathing pipe lower end and housing bottom maintain spacing.
The utility model hinge structure has following advantage:
1. the volume of three cavitys and pipeline are optimized design, can weaken high frequency noise;
2. the utility model optimizes the shape size of middle silencing cavity and pipeline (vertical pipeline) and inserts the degree of depth in volume 1, weakens the low frequency noise that system produces; See Fig. 3 be breathing pipe to move up in vertical position different distance time silencing apparatus transmission loss curve.As can be seen from Figure 3, along with breathing pipe moves up the increase of distance, overall soundproof effect first increases rear reduction, suppose former insertion depth (with the distance of upper wall surface) 34.85mm, the soundproof effect when the 7mm that moves up (insertion depth is 27.85mm) and 8mm (insertion depth is 26.85mm) is better.This two schemes of 7mm and 8mm that will move up carefully compares, and to find that in most of frequency range the two transmission loss is more or less the same, only between 5000 ~ 5800Hz, move up 7mm time transmission loss be obviously greater than the 8mm that moves up.Again because the distance that moves up of breathing pipe is larger, to export and distance between venting conduit inlet diminishes by causing interpolation pipe, form whirlpool, increase loss, reduction energy, therefore advise breathing pipe to move up 7mm, then insertion depth is 27.85 best results.
3. structurally sucking pipe and transition tube in the horizontal direction in the distribution that is parallel to each other, and fluid is completely contrary in the two ducted flow directions, from fluid dynamic angle, in sucking pipe and transition tube there is the phase difference of 180 ° in rate of flow of fluid, can fluid resonant be avoided, while reduction noise, reduce vibration;
Fluid resonant mathematical model is: [K
f+ i ω C-ω
2m
f] [p]=0
Wherein: K
ffor stiffness matrix; M
ffor mass matrix; ω
2for eigenvalue (angular frequency); P pressure characteristic
Vector, each parameter is vector, and phase place is contrary, can avoid resonance.
| Rotating speed RPM | Noise | Vibration | |
| Former silencing cavity | 3000 | 35.6 | 0.65 |
| New silencing cavity | 3000 | 32.9 | 0.55 |
Known through actual measured results, the pneumatic noise that fluid produces after flowing through the contrary pipeline of phase place is lower by 7.68% than flowing through identical the produced noise of phase place, simultaneously because avoiding fluid resonant, makes compressor body vibration reduce 15.7%.
4. three pipelines of the present utility model, except space distribution, the length of three pipelines is completely different, and has strict multiplying power relation, such as: breathing pipe length is L, so transition tube length
sucking pipe length L
1=3L, strict length corresponding relation reduces fluid and fluctuates at the fluid of each conduit entrance while weakening noise;
5. reduce air-breathing pulsation
In the utility model, silencing cavity volume is more than or equal to the volume sum of air-breathing silencing cavity and right silencing cavity, and the volume of air-breathing silencing cavity and right silencing cavity is suitable, makes fluid in whole flow process, alternately expands and compression, weakens gas;
6. thermal flow dynamic optimization
Surface of internal cavity of the present utility model is all made up of smoothed curve, and the staggered use of three pipelines, improves fluid flow efficiency during high, low speed, reduces flow resistance loss during flowing;
The mathematic(al) representation of flow resistance loss is:
Wherein, λ is coefficient of frictional resistance; L is silencing apparatus length, and unit is m; d
efor minor diameters such as noise damping channel sectional areas, unit is m; ρ is gas density, and unit is kg/m
3; V is airspeed, and unit is m/s; G is gravity accleration, and unit is m/s
2
When transmission length l is constant, use smoothed curve, increase Flow area d
e, thus reduce flow resistance loss, improve gettering efficiency and air-breathing stability
7. reliability
In general, Piston Refrigerant Compreessor cannot avoid oil to enter cylinder from silencing cavity (on a small quantity), silencing cavity should possess refrigeration agent and oily good separation, three pipelines of the present utility model spatially alternating expression distribution, constantly can change the flow direction of refrigeration agent, and the increasing of pipeline, add the number of times that refrigeration agent impacts wall, because refrigeration agent is different from the proportion of oil, the process of impacting wall also can realize the good separation of oil and refrigeration agent.
Accompanying drawing explanation
Fig. 1 is housing parts perspective view of the present utility model;
Fig. 2 is side cover section perspective view of the present utility model;
Fig. 3 is breathing pipe insertion depth change soundproof effect plotted curve.
In figure: 1-housing, 2-chimb caulking groove, 3-left clapboard, 4-transition tube, 5-breathing pipe, 6-right silencing cavity, 7-right clapboard, 8-sucking pipe, 9-middle silencing cavity, 10-left air aspiration cavity, 11-slot to make way, 12-side cover, 13-intakeport, 14-sealed convex edge, 15-leakage opening, 16-sealed groove structure, 17-transition net.
Embodiment
See Fig. 1, 2, the utility model three chamber is arranged side by side formula compressor air suction silencer, include a housing 1 and a side cover 12 matched with housing 1, portion is provided with vertically arranged breathing pipe 5 (outside is extended in its one end within the case 1, the other end leads to housing cavity), particularly be provided with a left side within the case 1, right vertical partition plate 3 and 7, the inner chamber of housing 1 is divided into left air aspiration cavity 10, middle silencing cavity 9, right silencing cavity 6, form three chambeies to be arranged side by side structure, two horizontal tracheaes different in size are provided with in middle silencing cavity 9, wherein a long air pipe is that sucking pipe 8 runs through middle silencing cavity 9, the two-port of sucking pipe 8 is communicated with left air aspiration cavity 10 and right silencing cavity 6 respectively, another root brachytracheae is silencing cavity 9 and right silencing cavity 6 during transition tube 4 is communicated with, described left and right vertical dividing plate and side cover 12 are tightly connected, side cover 12 and housing 1 are tightly connected, and corresponding chamber of inhaling has intakeport 13 (when housing 1 is darker, also intakeport can be located on housing corresponding position) herein on side cover 12.
In the present embodiment, preferably corresponding breathing pipe 5 place has slot to make way 11 on side cover 12.
Preferably in the lower end mouth of breathing pipe 5, filter screen 17 is installed in the present embodiment, to ensure that pipeline is unobstructed.
In the present embodiment, the volume of preferred described middle silencing cavity 9 is more than or equal to left air aspiration cavity 10 and right silencing cavity 6 volume sum, and left air aspiration cavity 10 is suitable with right silencing cavity 6 volume, to reach best erasure effect.
In the present embodiment, preferred described breathing pipe 5, sucking pipe 8, transition tube 4 three length of tube have following multiplying power relation: set breathing pipe 5 length as L, then sucking pipe 8 length is L
1=3L, transition tube 4 length
to weaken noise, reduce fluid simultaneously and fluctuate at the fluid of each conduit entrance, reduce air-breathing pulsation, specifically L=59mm, L
1=177mm, L
2=19.7mm.
Preferably leakage opening 15 is distributed with in left air aspiration cavity, middle silencing cavity, right silencing cavity three chamber vertical direction lower ends in the present embodiment.
In the present embodiment, the wall of preferred described side cover 12 is arc shaped surface, to weaken gas.
Preferably sealed groove structure 16 is provided with, to improve sealing effect at the corresponding left and right dividing plate 3,7 of the inwall of side cover 12 in the present embodiment.
In the present embodiment, preferred described side cover 12 adopts sealed convex edge 14 and chimb caulking groove 2 structure to fasten with housing 1 surrounding edge to seal, to improve sealing effect.
In the present embodiment, preferably outside is extended in described breathing pipe 5 upper end, and it is 26.85 ~ 27.85mm that the degree of depth in middle silencing cavity 9 is stretched in lower end, and maintains spacing bottom breathing pipe 5 lower end and housing 1, is specially 27.85mm.
Be more than one of optimum scheme of the present invention, wherein preferably part can do part employing according to actual conditions.
Claims (10)
1. three chambeies are arranged side by side formula compressor air suction silencer, include a housing and a side cover matched with housing, portion is provided with vertically arranged breathing pipe in the housing, it is characterized in that: be provided with a left side in the housing, right vertical partition plate, the inner chamber of housing is divided into left air aspiration cavity, middle silencing cavity, right silencing cavity, form three chambeies to be arranged side by side structure, two horizontal tracheaes different in size are provided with in middle silencing cavity, wherein a long air pipe is that sucking pipe runs through middle silencing cavity, the two-port of sucking pipe is communicated with left air aspiration cavity and right silencing cavity respectively, another root brachytracheae is silencing cavity and right silencing cavity during transition tube is communicated with, described left and right vertical dividing plate and side cover are tightly connected, side cover is connected with housing seal, and on housing or on side cover, corresponding chamber of inhaling has intakeport.
2. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: on described side cover, corresponding breathing pipe place has slot to make way.
3. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: be provided with filter screen in the lower end mouth of breathing pipe.
4. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: the volume of described middle silencing cavity is more than or equal to left air aspiration cavity and right silencing cavity volume sum, and left air aspiration cavity is suitable with right silencing cavity volume.
5. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: described breathing pipe, sucking pipe, transition tube three length of tube have following multiplying power relation: set breathing pipe length as L, then sucking pipe length is L
1=3L, transition tube length
6. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: be distributed with leakage opening in left air aspiration cavity, middle silencing cavity, right silencing cavity three chamber vertical direction lower ends.
7. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: the wall of described side cover is arc shaped surface.
8. three chambeies according to claim 1 or 7 are arranged side by side formula compressor air suction silencer, it is characterized in that: be provided with sealed groove structure at the corresponding left and right dividing plate of the inwall of side cover.
9. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: described side cover and housing surrounding edge adopt sealed convex edge and chimb caulking groove structure to fasten and seal.
10. three chambeies according to claim 1 are arranged side by side formula compressor air suction silencer, it is characterized in that: outside is extended in described breathing pipe upper end, it is 26.85 ~ 27.85mm that the degree of depth in middle silencing cavity is stretched in lower end, and breathing pipe lower end and housing bottom maintain spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683687.3U CN204877858U (en) | 2015-09-02 | 2015-09-02 | Formula compressor muffler of breathing in is arranged side by side in three chambeies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683687.3U CN204877858U (en) | 2015-09-02 | 2015-09-02 | Formula compressor muffler of breathing in is arranged side by side in three chambeies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877858U true CN204877858U (en) | 2015-12-16 |
Family
ID=54822239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520683687.3U Withdrawn - After Issue CN204877858U (en) | 2015-09-02 | 2015-09-02 | Formula compressor muffler of breathing in is arranged side by side in three chambeies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134555A (en) * | 2015-09-02 | 2015-12-09 | 黄石东贝电器股份有限公司 | Compressor air sucking and sound reduction device with three cavities arranged side by side |
| CN107989775A (en) * | 2018-01-05 | 2018-05-04 | 安徽美芝制冷设备有限公司 | Muffler and compressor for compressor |
-
2015
- 2015-09-02 CN CN201520683687.3U patent/CN204877858U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134555A (en) * | 2015-09-02 | 2015-12-09 | 黄石东贝电器股份有限公司 | Compressor air sucking and sound reduction device with three cavities arranged side by side |
| CN105134555B (en) * | 2015-09-02 | 2017-04-19 | 黄石东贝电器股份有限公司 | Compressor air sucking and sound reduction device with three cavities arranged side by side |
| CN107989775A (en) * | 2018-01-05 | 2018-05-04 | 安徽美芝制冷设备有限公司 | Muffler and compressor for compressor |
| CN107989775B (en) * | 2018-01-05 | 2023-11-24 | 安徽美芝制冷设备有限公司 | Muffler for compressor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170419 |
|
| AV01 | Patent right actively abandoned |