CN206206181U - Screw compressor - Google Patents
Screw compressor Download PDFInfo
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- CN206206181U CN206206181U CN201621070234.4U CN201621070234U CN206206181U CN 206206181 U CN206206181 U CN 206206181U CN 201621070234 U CN201621070234 U CN 201621070234U CN 206206181 U CN206206181 U CN 206206181U
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- intubation
- expansion cavity
- silencing apparatus
- screw compressor
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Abstract
The utility model discloses a kind of screw compressor, belong to Compressor Technology field, to be designed the problems such as solving existing apparatus soundproof effect difference.The utility model screw compressor includes quiet disk and top cover, and expansion cavity is formed between quiet disk and top cover, and Jing Panshang is provided with silencing apparatus, and silencing apparatus holds together to form lower expansion cavity with quiet armor, and the space of the lower expansion cavity of expansion cavity removal forms expansion cavity；At least one through hole, through hole connection upper expansion cavity and lower expansion cavity are provided with silencing apparatus.The utility model screw compressor eliminates noise elimination low ebb frequency by increasing expansion cavity quantity, improves the sound deadening capacity of screw compressor, reaches the purpose for reducing compressor noise, solves the problems, such as that screw compressor exhaust noise is excessive；While the silencing apparatus can reduce high-voltage high-speed gas directly impacts the vibration produced by top cover and the noise for being radiated, and then reduce the vibration that top cover is transmitted to surrounding structure.
Description
Technical field
The utility model is related to Compressor Technology field, more particularly to a kind of screw compressor.
Background technology
As shown in figure 1, the exhaust process of existing screw compressor (especially high back pressure screw compressor) is：High pressure it is cold
The top cover 2 that gas body is directly discharged to quiet disk 1 and compressor from the exhaust outlet 11 of quiet disk 1 encloses the epicoele to be formed (expansion cavity 3)
It is interior, then the cavity of resorption of housing 9 is discharged to by the exhaust passage 10 that quiet disk 1, upper bracket 8 and housing 9 are constituted, by the row of blast pipe 20
Go out, direction is airflow direction shown in arrow in Fig. 1.
There is pressure fluctuation in gases at high pressure, when being discharged from exhaust outlet 11 so as to produce noise；From the height of the discharge of exhaust outlet 11
Pressure high-speed gas can be directly sprayed onto on the top cover 2 of compressor, cause vibration and the radiated noise of top cover 2.Gas noise and
Top cover vibration radiation noise is the Main Noise Sources of screw compressor.Although the epicoele of quiet disk 1 and the composition of top cover 2 is equivalent to one
Expansion chamber silencer, has certain noise elimination to act on, but due to the limitation of structure space, its frequency of noise elimination and sound deadening capacity are limited,
Cannot solve the problems, such as that screw compressor pneumatic noise and vibration radiation noise are big；Expansion cavity length mainly influences the maximum of epicoele
Frequency of noise elimination, the bandwidth lost by frequency (i.e. noise elimination low ebb frequency) and transmission, but due to structural volume and design requirement
Limitation, cause the sound deadening capacity of epicoele and frequency of noise elimination very limited；Although the noise elimination structure of epicoele has necessarily to exhaust noise
Reduction effect, but eliminated the noise by frequency (noise elimination low ebb) due to existing, cause the soundproof effect of epicoele very limited.
Utility model content
The purpose of this utility model is to propose a kind of screw compressor that can improve sound deadening capacity.
It is that, up to this purpose, the utility model uses following technical scheme：
A kind of screw compressor, including quiet disk and top cover, expansion cavity is formed between the quiet disk and top cover, in the quiet disk
On be provided with silencing apparatus, the silencing apparatus holds together to be formed lower expansion cavity with the quiet armor, under the expansion cavity removal is described
The space of expansion cavity forms expansion cavity；At least one through hole is provided with the silencing apparatus, the through hole is connected on described
Expansion cavity and the lower expansion cavity.
Particularly, the silencing apparatus is to tip upside down on the barrel-like structure on the quiet disk top surface, and the through hole is opened in institute
State on the bottom surface of barrel-like structure；It is provided with the intubation of hollow tubular in the through hole, one end of the intubation protrudes from described
The medial surface of the bottom surface of silencing apparatus, the other end protrude from the lateral surface of the bottom surface of the silencing apparatus.
Further, the intubation be located at the upper expansion cavity in part be bend pipe, and/or the intubation be located at it is described under
Part in expansion cavity is bend pipe.
Particularly, the barrel-like structure in the silencing apparatus is internally provided with shelf, the shelf, the intubation and described
Silencing apparatus crowds around to form closing chamber；The intubation is located on the tube wall of the closing chamber scope and opens up the ventilation of at least one intubation
Hole, the intubation passage connects the inner chamber of the closing chamber and the intubation.
Particularly, the barrel-like structure in the silencing apparatus is internally provided with shelf, the shelf, the intubation and described
Silencing apparatus crowds around to form closing chamber；Shelf passage is provided with the shelf, the shelf passage connects the closing
Chamber and the lower expansion cavity.
Further, the intubation is located on the tube wall of the closing chamber scope and opens up at least one intubation passage, described
Intubation passage connects the inner chamber of the closing chamber and the intubation.
Particularly, the intubation is welded in the through hole, or the intubation and the through hole interference fit.
Particularly, the height that the intubation protrudes from the inside bottom surface face of the silencing apparatus is the height of the lower expansion cavity
0.25 times or 0.5 times of degree H；And/or, the height that the intubation protrudes from the outer side bottom surface face of the silencing apparatus is on described
0.25 times or 0.5 times of the height L of expansion cavity.
Particularly, all the cross-sectional area sum of the through hole is more than or equal to the cross section of the exhaust outlet on the quiet disk
Product.
Particularly, the through hole is located at the node location of the glottis neoplasms of the lower expansion cavity.
Expansion cavity is partitioned into the silencing apparatus of the utility model screw compressor the lower expansion cavity and upper expansion being connected
Chamber is opened, noise elimination low ebb frequency is eliminated by increasing expansion cavity quantity, improve the sound deadening capacity of screw compressor, reach reduction compression
The purpose of machine noise, solves the problems, such as that screw compressor exhaust noise is excessive；Can to reduce high pressure high for the silencing apparatus simultaneously
Fast gas directly impacts the vibration produced by top cover and the noise for being radiated, and then reduces top cover to shaking that surrounding structure is transmitted
It is dynamic.
Brief description of the drawings
Fig. 1 is the sectional view of existing screw compressor；
Fig. 2 is the sectional view of the screw compressor that the utility model preferred embodiment one is provided；
Fig. 3 is the sectional view of the first structure of the screw compressor that the utility model preferred embodiment two is provided；
Fig. 4 is the sectional view of second structure of the screw compressor that the utility model preferred embodiment two is provided；
Fig. 5 is the sectional view of the screw compressor that the utility model preferred embodiment three is provided；
Fig. 6 is the partial enlarged drawing at A in Fig. 5；
Fig. 7 is the sectional view of the screw compressor that the utility model preferred embodiment four is provided；
Fig. 8 is the partial enlarged drawing at B in Fig. 7.
In figure：
1st, quiet disk；2nd, top cover；3rd, expansion cavity；4th, silencing apparatus；5th, intubation；6th, shelf；7th, closing chamber；8th, upper bracket；9、
Housing；10th, exhaust passage；11st, exhaust outlet；20th, blast pipe；31st, upper expansion cavity；32nd, lower expansion cavity；41st, through hole；51st, bend pipe；
52nd, intubation passage；61st, shelf passage.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.
Preferred embodiment one：
This preferred embodiment discloses a kind of screw compressor.As shown in Fig. 2 the screw compressor includes quiet disk 1 and top cover
2, expansion cavity 3 is formed between quiet disk 1 and top cover 2, silencing apparatus 4 is provided with quiet disk 1, adopted between silencing apparatus 4 and quiet disk 1
It is fixedly connected with modes such as screws.Silencing apparatus 4 crowds around to form lower expansion cavity 32 with quiet disk 1, the lower expansion cavity 32 of the removal of expansion cavity 3
Space form expansion cavity 31；At least one through hole 41 is provided with silencing apparatus 4, the upper expansion cavity 31 of the connection of through hole 41 is with
Expansion cavity 32.
Expansion cavity 3 on quiet disk 1 is separated into two chambers by the silencing apparatus 4, arrow institute in gas flow such as Fig. 2
Show, the high-voltage high-speed gas discharged from the exhaust outlet 11 of quiet disk 1 drops by gas pressure pulsation reduction, noise after lower expansion cavity 32
Low, the air-flow is discharged to expansion cavity 31 by through hole 41 again, and pressure fluctuation less gas vibrates when being sprayed onto the top cover 2 of compressor
Also can reduce, correspondingly radiated noise reduction, the exhaust passage that then air-flow is made up of quiet disk 1, upper bracket 8 and housing 9 again
10 cavity of resorptions for being discharged to housing 9, discharge by blast pipe 20.The low ebb that silencer is eliminated by the quantity for increasing expansion cavity is frequently
Rate, has reached the purpose for improving compressor sound deadening capacity.
Original expansion cavity 3 is divided into two expansion chambers cavitys of series connection, lower expansion cavity 32 and upper expansion cavity by silencing apparatus 4
31 height is different.Correspondingly, the part noise elimination low ebb frequency of silencing apparatus 4 can change, and reduce part in the prior art
The noise of noise elimination low ebb frequency.Wherein, the design of the height H of the lower expansion cavity 32 and height L of upper expansion cavity 31 is main according to row
The peak value frequency range of gas noise is designed, and the height H of lower expansion cavity 32 is greater than the height L of expansion cavity 31.
In view of the quantity for increasing expansion cavity can only cut down the part low ebb frequency of silencing apparatus 4, in order to preferably cut down more
Many low ebb frequencies, can be respectively provided with interpolation pipe in lower expansion cavity 32 and upper expansion cavity 31；Can also be：Silencing apparatus 4 is
The barrel-like structure on the top surface of quiet disk 1 is tipped upside down on, through hole 41 is opened on the bottom surface of barrel-like structure, be provided with through hole 41 hollow
The intubation 5 of tubulose, intubation 5 be welded in through hole 41 or with the interference fit of through hole 41, one end of intubation 5 protrudes from silencing apparatus 4
The medial surface of bottom surface, the other end protrude from silencing apparatus 4 bottom surface lateral surface.
The length of the insertion expansion cavity of intubation 5 is mainly the crest frequency according to the exhaust noise to be eliminated to determine, excellent
Choosing, the height that intubation 5 protrudes from the inside bottom surface face of silencing apparatus 4 is 0.25 times or 0.5 of the height H of lower expansion cavity 32
Times, specifically 0.25 times or 0.5 times will then be selected according to frequency of noise elimination；And/or, intubation 5 protrudes from silencing apparatus 4
The height in outer side bottom surface face is 0.25 times or 0.5 times of the height L of upper expansion cavity 31, and specifically 0.25 times or 0.5 times then will
Selected according to frequency of noise elimination.
The shape and quantity of intubation 5 are not limited, and can carry out reasonable disposition according to deadening frequency band.The cross section shape of intubation 5
Shape can be the shape such as circular, oval and rectangle；The quantity of intubation 5 no less than in the case of one, all intubations 5 it is transversal
Area sum is more than or equal to the cross-sectional area of exhaust outlet 11, to reduce airflow pressure losses.
Through hole 41 (and intubation 5) is at the node location of the glottis neoplasms of lower expansion cavity 32.The node in different product
Position is possible to different, it is necessary to carry out acoustics emulation in advance to determine the node location.
Preferred embodiment two：
This preferred embodiment discloses a kind of screw compressor, and its structure is essentially identical with preferred embodiment one.Difference
It is, as shown in figure 3, the part that intubation 5 is located in lower expansion cavity 32 is bend pipe 51；As shown in figure 4, intubation 5 is located at upper expansion
Part in chamber 31 is bend pipe 51.In the case where the superjacent air space of quiet disk 1 is limited, the structure of bend pipe 51 ensures that intubation 5 still can be with
Requirement according to deadening frequency band is rationally designed, it is ensured that have enough sound deadening capacities；In addition, the structure of bend pipe 51 can reduce whirlpool
Revolve compressor tells oil cut rate.
Preferred embodiment three：
This preferred embodiment discloses a kind of screw compressor, and its structure is essentially identical with preferred embodiment one or two.It is different
Part is, as shown in Figure 5 and Figure 6, shelf 6 is internally provided with the barrel-like structure of silencing apparatus 4, shelf 6, intubation 5 and disappears
Acoustic device 4 crowds around to form closing chamber 7；Intubation 5 is located on the tube wall of the scope of closing chamber 7 and opens up at least one intubation passage 52,
Intubation passage 52 connects the inner chamber of closing chamber 7 and intubation 5.The structure forms the resonant cavity of multiple parallel connections, greatly widens and disappears
Audio frequency range, improves the sound deadening capacity of screw compressor.
Preferred embodiment four：
This preferred embodiment discloses a kind of screw compressor, and its structure is essentially identical with preferred embodiment three.Difference
It is to be internally provided with shelf 6 in the barrel-like structure of silencing apparatus 4, shelf 6, intubation 5 and silencing apparatus 4 crowd around to form closing
Chamber 7；Shelf passage 61, shelf passage 61 connection closing chamber 7 and lower expansion cavity 32 are provided with shelf 6.
On the basis of said structure, as shown in Figure 7 and Figure 8, the tube wall of the scope of closing chamber 7 can also be located in intubation 5
On open up at least one intubation passage 52, the inner chamber of the connection closing chamber 7 of intubation passage 52 and intubation 5.The structure forms many
Individual resonant cavity in parallel, further widens deadening frequency band, improves the sound deadening capacity of screw compressor.
Note, above are only preferred embodiment of the present utility model and the know-why used.Those skilled in the art
It will be appreciated that the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various
Significantly change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although implement more than
Example is described in further detail to the utility model, but the utility model is not limited only to above example, is not taking off
In the case of conceiving from the utility model, more other Equivalent embodiments can also be included, and scope of the present utility model is by institute
Attached right is determined.
Claims (10)
1. a kind of screw compressor, including quiet disk (1) and top cover (2), form between the quiet disk (1) and the top cover (2) and expand
Open chamber (3), it is characterised in that silencing apparatus (4), the silencing apparatus (4) and the quiet disk are provided with the quiet disk (1)
(1) crowd around to form lower expansion cavity (32), the space that the expansion cavity (3) removes the lower expansion cavity (32) forms expansion cavity
(31)；At least one through hole (41) is provided with the silencing apparatus (4), the through hole (41) connects the upper expansion cavity (31)
With the lower expansion cavity (32).
2. screw compressor according to claim 1, it is characterised in that the silencing apparatus (4) is described quiet to tip upside down on
Barrel-like structure on disk (1) top surface, the through hole (41) is opened on the bottom surface of the barrel-like structure；In the through hole (41)
Be provided with the intubation (5) of hollow tubular, one end of the intubation (5) protrude from the bottom surface of the silencing apparatus (4) medial surface,
The other end protrudes from the lateral surface of the bottom surface of the silencing apparatus (4).
3. screw compressor according to claim 2, it is characterised in that the intubation (5) is positioned at the upper expansion cavity
(31) part in is bend pipe (51), and/or part of the intubation (5) in the lower expansion cavity (32) is bend pipe
(51)。
4. screw compressor according to claim 2, it is characterised in that in the barrel-like structure of the silencing apparatus (4)
Portion is provided with shelf (6), and the shelf (6), the intubation (5) and the silencing apparatus (4) crowd around to form closing chamber (7)；Institute
State intubation (5) and at least one intubation passage (52), the intubation ventilation are opened up on the tube wall of the closing chamber (7) scope
Hole (52) connects the inner chamber of the closing chamber (7) and the intubation (5).
5. screw compressor according to claim 2, it is characterised in that in the barrel-like structure of the silencing apparatus (4)
Portion is provided with shelf (6), and the shelf (6), the intubation (5) and the silencing apparatus (4) crowd around to form closing chamber (7)；Institute
State and shelf passage (61) is provided with shelf (6), the shelf passage (61) connects the closing chamber (7) and the lower expansion
Open chamber (32).
6. screw compressor according to claim 5, it is characterised in that the intubation (5) is positioned at the closing chamber (7) model
At least one intubation passage (52) is opened up on the tube wall for enclosing, the intubation passage (52) connects the closing chamber (7) and institute
State the inner chamber of intubation (5).
7. the screw compressor according to any one of claim 2 to 6, it is characterised in that the intubation (5) is welded on institute
State in through hole (41), or the intubation (5) and the through hole (41) interference fit.
8. the screw compressor according to any one of claim 2 to 6, it is characterised in that the intubation (5) protrudes from institute
The height for stating the inside bottom surface face of silencing apparatus (4) is 0.25 times or 0.5 times of the height H of the lower expansion cavity (32)；
And/or, the height that the intubation (5) protrudes from the outer side bottom surface face of the silencing apparatus (4) is the upper expansion cavity
(31) 0.25 times or 0.5 times of height L.
9. screw compressor according to any one of claim 1 to 6, it is characterised in that whole through holes (41)
Cross-sectional area of the cross-sectional area sum more than or equal to the exhaust outlet (11) on the quiet disk (1).
10. screw compressor according to any one of claim 1 to 6, it is characterised in that the through hole (41) is positioned at institute
At the node location of the glottis neoplasms for stating lower expansion cavity (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070234.4U CN206206181U (en) | 2016-09-21 | 2016-09-21 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070234.4U CN206206181U (en) | 2016-09-21 | 2016-09-21 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206206181U true CN206206181U (en) | 2017-05-31 |
Family
ID=58760838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621070234.4U Active CN206206181U (en) | 2016-09-21 | 2016-09-21 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206206181U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194755A (en) * | 2016-09-21 | 2016-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor |
| CN110118182A (en) * | 2018-02-06 | 2019-08-13 | 博泽沃尔兹堡汽车零部件有限公司 | Electronic coolant compressor |
| KR102083966B1 (en) * | 2018-09-05 | 2020-03-03 | 엘지전자 주식회사 | A compressor |
-
2016
- 2016-09-21 CN CN201621070234.4U patent/CN206206181U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194755A (en) * | 2016-09-21 | 2016-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor |
| CN110118182A (en) * | 2018-02-06 | 2019-08-13 | 博泽沃尔兹堡汽车零部件有限公司 | Electronic coolant compressor |
| KR102083966B1 (en) * | 2018-09-05 | 2020-03-03 | 엘지전자 주식회사 | A compressor |
| WO2020050605A1 (en) * | 2018-09-05 | 2020-03-12 | 엘지전자 주식회사 | Compressor |
| CN112703317A (en) * | 2018-09-05 | 2021-04-23 | Lg电子株式会社 | Compressor |
| DE112019004449B4 (en) | 2018-09-05 | 2022-11-03 | Lg Electronics Inc. | compressor |
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