CN113775524B - Two-stage compression screw compressor shell with noise reduction function - Google Patents
Two-stage compression screw compressor shell with noise reduction function Download PDFInfo
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- CN113775524B CN113775524B CN202111194073.5A CN202111194073A CN113775524B CN 113775524 B CN113775524 B CN 113775524B CN 202111194073 A CN202111194073 A CN 202111194073A CN 113775524 B CN113775524 B CN 113775524B
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- noise reduction
- plate
- guide plate
- shell
- compressor
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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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
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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
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
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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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
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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
- F04C2240/00—Components
- F04C2240/80—Other components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a two-stage compression screw compressor shell with a noise reduction function, which comprises a compressor shell and a noise reduction box body fixedly communicated with the front end outside the compressor shell, wherein the compressor shell comprises a first installation shell and a second installation shell which are sequentially connected from top to bottom. The invention provides a two-stage compression screw compressor shell with a noise reduction function, which effectively attenuates airflow pulsation of a compressor and reduces noise of the compressor through the arrangement of the noise reduction box.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a two-stage compression screw compressor shell with a noise reduction function.
Background
The two-stage compression screw compressor divides the compression process into two stages, compressed gas after the first stage compression enters the second stage compression after being subjected to interstage cooling, so that the whole compression process is closer to an isothermal process, the compression efficiency of the whole compression is greatly improved, and the energy-saving level of the compressor is better realized.
Because the screw compressor belongs to the positive displacement compressor, airflow pulsation is inevitably generated in the compression process, and vibration noise is induced.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a two-stage compression screw compressor shell with a noise reduction function, and through the arrangement of the noise reduction box body, the air flow pulsation of the compressor is effectively attenuated, and the noise of the compressor is reduced.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
the two-stage compression screw compressor shell with the noise reduction function comprises a compressor shell and a noise reduction box fixedly communicated with the front end outside the compressor shell, wherein the compressor shell comprises a first installation shell and a second installation shell which are sequentially connected from top to bottom;
the upper end of the compressor shell is provided with a gas inlet;
a first separation baffle is fixedly arranged between the first installation shell and the second installation shell, and the left side surface of the first separation baffle is provided with a ventilation groove;
the first installation shell is internally and fixedly provided with a first guide plate, the first guide plate is an inclined plate, the first guide plate is positioned at the lower end of the gas inlet, the right end of the first guide plate forms a first gas flow area, the left end of the first guide plate forms a second gas flow area, the lower end of the first guide plate is fixedly provided with a second separation baffle, the second separation baffle is fixedly arranged at the left end of the first installation shell, and a third gas flow area is formed between the second separation baffle and the first separation baffle;
the second installation shell is internally and fixedly provided with a second guide plate, the second guide plate is an inclined plate, the right end of the second guide plate forms a fourth airflow area, and the left end of the second guide plate forms a fifth airflow area;
the noise reduction box body comprises a noise reduction frame and a cover plate which is installed at the front end of the noise reduction frame in a matched mode.
Further, the lower bottom surface of the second installation shell is fixedly provided with a square-shaped pad, and a plurality of shock absorption strips are uniformly distributed on the inner surface of the square-shaped pad.
Further, connecting holes are uniformly distributed on the front side surface and the rear side surface of the compressor shell, and the connecting holes are communicated with the noise reduction frame.
Further, two symmetrically arranged first partition plates and second partition plates are fixedly arranged in the noise reduction frame, a first cavity is formed between the first partition plates and the left end of the inner surface of the noise reduction frame, a second cavity is formed between the first partition plates and the second partition plates, a third partition plate is fixedly arranged at the upper end of the inside of the second cavity, and the third partition plate divides the second cavity into a first circulation area and a second circulation area;
the second partition plate and the right end of the inner surface of the noise reduction frame form a third cavity, fourth partition plates are uniformly distributed in the third cavity, and a third circulation area is formed between every two adjacent fourth partition plates.
Further, two symmetrically arranged fastening frames are arranged outside the noise reduction frame in a matched mode;
the fastening frame comprises a connecting rod and L-shaped plates fixedly arranged at two ends of the connecting rod;
the L-shaped plate comprises a first connecting plate and a second connecting plate which are vertically connected, the rear side surface of the first connecting plate is in close contact with the front side surface of the cover plate, and the lower bottom surface of the second connecting plate is in close contact with the top surface of the noise reduction frame;
the left end and the right end of the top surface of the second connecting plate are respectively provided with a first threaded hole, the first threaded holes are connected with fastening bolts in a threaded manner, and the top surface of the noise reduction frame is provided with a second threaded hole matched with the fastening bolts.
The beneficial effects of the invention are as follows:
the invention provides a two-stage compression screw compressor shell with a noise reduction function, which effectively attenuates airflow pulsation of a compressor and reduces noise of the compressor through the arrangement of the noise reduction box.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
FIG. 4 is a partial cross-sectional view of the structure of the present invention;
FIG. 5 is a front view of a partial structure of the present invention;
FIG. 6 is a schematic view of a partial structure of the present invention;
FIG. 7 is an exploded view of a partial structure of the present invention;
fig. 8 is an exploded view of a partial structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The two-stage compression screw compressor shell with the noise reduction function as shown in fig. 1 to 3 comprises a compressor shell 1 and a noise reduction box body 2 fixedly communicated with the front end outside the compressor shell 1, wherein the compressor shell 1 comprises a first installation shell 3 and a second installation shell 4 which are sequentially connected from top to bottom;
the upper end of the compressor shell 1 is provided with a gas inlet 11;
a first separation baffle plate 5 is fixedly arranged between the first installation shell 3 and the second installation shell 4, and a ventilation groove 51 is formed in the left side surface of the first separation baffle plate 5;
the lower bottom surface of the second installation shell 4 is fixedly provided with a square-shaped pad 6, and a plurality of damping strips 61 are uniformly distributed on the inner surface of the square-shaped pad 6.
As shown in fig. 4, a first baffle 31 is fixedly installed inside the first installation shell 3, the first baffle 31 is an inclined plate, the first baffle 31 is positioned at the lower end of the gas inlet 11, the right end of the first baffle 31 forms a first gas flow area 32, the left end of the first baffle 31 forms a second gas flow area 33, the lower end of the first baffle 31 is fixedly provided with a second separation baffle 34, the second separation baffle 34 is fixedly installed at the left end inside the first installation shell 3, and a third gas flow area 35 is formed between the second separation baffle 34 and the first separation baffle 5;
the second installation shell 4 is internally and fixedly provided with a second guide plate 41, the second guide plate 41 is an inclined plate, the right end of the second guide plate 41 forms a fourth air flow area 42, and the left end of the second guide plate 41 forms a fifth air flow area 43;
in the actual process, the high-pressure gas with air flow pulsation enters the first air flow area 32 through the gas inlet 11 to form an air column, reaches the third air flow area 35 through the second air flow area 33, enters the noise reduction box 2 through the connecting hole 12 between the noise reduction box 2 and the compressor shell 1, repeatedly enters the noise reduction box 2 in the process, consumes sound energy by friction between the air column and the connecting hole 12, further reduces noise, and then is discharged through the fourth air flow area 42 and the fifth air flow area 43;
during actual use, the noise reduction box bodies 2 can be arranged at the front end and the rear end of the compressor shell 1 according to actual conditions, so that the noise reduction effect is achieved.
As shown in fig. 5 to 8, the noise reduction box 2 includes a noise reduction frame 21 and a cover plate 22 cooperatively installed at the front end of the noise reduction frame 21;
the connecting holes 12 are uniformly distributed on the front side and the rear side of the compressor shell 1, the connecting holes 12 are communicated with the noise reduction frame 21, as the compressed gas of the compressor contains trace lubricating oil, the trace lubricating oil can be accumulated into the noise reduction resonant cavity along with the time, the closed cavity volume of the noise reduction resonant cavity is occupied, the noise reduction frequency deviation of the noise reduction resonant cavity is caused, the noise reduction effect of the noise reduction resonant cavity is influenced, and the plurality of connecting holes 12 are arranged, so that the stored oil of the noise reduction box body 2 can be ensured to flow into a corresponding airflow area through the connecting holes 12;
the noise reduction frame 21 is internally and fixedly provided with two symmetrically arranged first partition plates 23 and second partition plates 24, a first cavity 231 is formed at the left ends of the inner surfaces of the first partition plates 23 and the noise reduction frame 21, a second cavity 232 is formed between the first partition plates 23 and the second partition plates 24, a third partition plate 233 is fixedly arranged at the upper end of the inside of the second cavity 232, and the third partition plate 233 divides the second cavity 232 into a first circulating area 234 and a second circulating area 235;
the right ends of the inner surfaces of the second partition plates 24 and the noise reduction frame 21 form a third cavity 241, fourth partition plates 242 are uniformly distributed in the third cavity 241, and a third circulation area 243 is formed between every two adjacent fourth partition plates 242;
the first cavity 231 is communicated with the second cavity 232, the second cavity 232 is communicated with a plurality of third circulation areas 243, when gas flows into the noise reduction frame 21, the gas repeatedly enters and exits the connecting holes 12 under the excitation of the air flow pulsation, so that the air column moves back and forth in the noise reduction frame 21, the friction between the air column and the connecting holes 12 is utilized to consume the acoustic energy, after the noise of resonance frequency is reflected back, the wave crest meets the wave trough, the noise of resonance frequency is eliminated, the air flow pulsation is attenuated, and the noise is further reduced;
the first cavity 231, the first circulation area 234, the second circulation area 235 and the third circulation areas 243 are arranged, the noise reduction cavities are used simultaneously, sound waves with various frequencies are reflected and absorbed in the noise reduction cavities, the noise stroke is increased, multiple noise reduction is completed, and the noise reduction effect is effectively improved;
two symmetrically arranged fastening frames 211 are matched and installed outside the noise reduction frame 21;
the fastening frame 211 includes a connection rod 212 and an L-shaped plate 213 fixedly installed at both ends of the connection rod 212;
the L-shaped plate 213 comprises a first connecting plate 214 and a second connecting plate 215 which are vertically connected, wherein the rear side surface of the first connecting plate 214 is tightly contacted with the front side surface of the cover plate 22, and the lower bottom surface of the second connecting plate 215 is tightly contacted with the top surface of the noise reduction frame 21;
the left and right ends of the top surface of the second connecting plate 215 are respectively provided with a first threaded hole 2151, the first threaded hole 2151 is internally and in threaded connection with a fastening bolt 2152, and the top surface of the noise reduction frame 21 is provided with a second threaded hole 216 matched with the fastening bolt 2152.
In the actual use process, through the arrangement of the noise reduction box body 2, the air flow pulsation of the compressor is effectively attenuated, and the noise of the compressor is reduced.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (3)
1. A two-stage compression screw compressor casing with function of making an uproar is fallen, its characterized in that: the compressor comprises a compressor shell (1) and a noise reduction box body (2) fixedly communicated with the front end outside the compressor shell (1), wherein the compressor shell (1) comprises a first installation shell (3) and a second installation shell (4) which are sequentially connected from top to bottom;
the upper end of the compressor shell (1) is provided with a gas inlet (11);
a first separation baffle (5) is fixedly arranged between the first installation shell (3) and the second installation shell (4), and a ventilation groove (51) is formed in the left side surface of the first separation baffle (5);
the novel air conditioner is characterized in that a first guide plate (31) is fixedly arranged in the first installation shell (3), the first guide plate (31) is an inclined plate, the first guide plate (31) is positioned at the lower end of the air inlet (11), a first air flow area (32) is formed at the right end of the first guide plate (31), a second air flow area (33) is formed at the left end of the first guide plate (31), a second separation baffle (34) is fixedly arranged at the lower end of the first guide plate (31), the second separation baffle (34) is fixedly arranged at the left end of the inside of the first installation shell (3), and a third air flow area (35) is formed between the second separation baffle (34) and the first separation baffle (5);
a second guide plate (41) is fixedly arranged in the second installation shell (4), the second guide plate (41) is an inclined plate, a fourth air flow area (42) is formed at the right end of the second guide plate (41), and a fifth air flow area (43) is formed at the left end of the second guide plate (41);
the noise reduction box body (2) comprises a noise reduction frame (21) and a cover plate (22) which is matched and installed at the front end of the noise reduction frame (21);
the noise reduction frame (21) is internally and fixedly provided with two symmetrically arranged first partition plates (23) and second partition plates (24), a first cavity (231) is formed at the left end of the inner surface of the first partition plates (23) and the noise reduction frame (21), a second cavity (232) is formed between the first partition plates (23) and the second partition plates (24), a third partition plate (233) is fixedly arranged at the upper end of the inner part of the second cavity (232), and the third partition plate (233) divides the second cavity (232) into a first circulation area (234) and a second circulation area (235);
a third cavity (241) is formed at the right end of the inner surface of the noise reduction frame (21) and the second partition plate (24), fourth partition plates (242) are uniformly distributed in the third cavity (241), and a third circulation area (243) is formed between every two adjacent fourth partition plates (242);
two symmetrically arranged fastening frames (211) are arranged outside the noise reduction frame (21) in a matched mode;
the fastening frame (211) comprises a connecting rod (212) and L-shaped plates (213) fixedly arranged at two ends of the connecting rod (212);
the L-shaped plate (213) comprises a first connecting plate (214) and a second connecting plate (215) which are vertically connected, the rear side surface of the first connecting plate (214) is tightly contacted with the front side surface of the cover plate (22), and the lower bottom surface of the second connecting plate (215) is tightly contacted with the top surface of the noise reduction frame (21);
the left end and the right end of the top surface of the second connecting plate (215) are respectively provided with a first threaded hole (2151), the first threaded holes (2151) are internally connected with fastening bolts (2152) in a threaded manner, and the top surface of the noise reduction frame (21) is provided with a second threaded hole (216) matched with the fastening bolts (2152).
2. The two-stage compression screw compressor housing with noise reduction according to claim 1, wherein: the bottom surface fixed mounting has a mouthful style of calligraphy pad (6) under second installation shell (4), mouthful style of calligraphy pad (6) internal surface equipartition has a plurality of shock attenuation strips (61).
3. The two-stage compression screw compressor housing with noise reduction according to claim 1, wherein: connecting holes (12) are uniformly distributed on the front side surface and the rear side surface of the compressor shell (1), and the connecting holes (12) are communicated with the noise reduction frame (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194073.5A CN113775524B (en) | 2021-10-13 | 2021-10-13 | Two-stage compression screw compressor shell with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194073.5A CN113775524B (en) | 2021-10-13 | 2021-10-13 | Two-stage compression screw compressor shell with noise reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113775524A CN113775524A (en) | 2021-12-10 |
| CN113775524B true CN113775524B (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111194073.5A Active CN113775524B (en) | 2021-10-13 | 2021-10-13 | Two-stage compression screw compressor shell with noise reduction function |
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| Country | Link |
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| CN (1) | CN113775524B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4062001B2 (en) * | 2001-10-19 | 2008-03-19 | 株式会社デンソー | Gas compression device |
| JP3951697B2 (en) * | 2001-12-14 | 2007-08-01 | 株式会社デンソー | Screw type compressor |
| CN108915997B (en) * | 2018-08-24 | 2024-06-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Muffler, compressor assembly and refrigerator |
| CN210265123U (en) * | 2019-07-19 | 2020-04-07 | 爱景智能装备(无锡)有限公司 | Two-stage compression screw compressor airflow pulsation attenuator |
| CN112460024A (en) * | 2020-12-16 | 2021-03-09 | 珠海格力电器股份有限公司 | Compressor housing and screw compressor |
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2021
- 2021-10-13 CN CN202111194073.5A patent/CN113775524B/en active Active
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| CN113775524A (en) | 2021-12-10 |
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