CN109578242B - Air suction silencer and compressor - Google Patents
Air suction silencer and compressor Download PDFInfo
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- CN109578242B CN109578242B CN201811206361.6A CN201811206361A CN109578242B CN 109578242 B CN109578242 B CN 109578242B CN 201811206361 A CN201811206361 A CN 201811206361A CN 109578242 B CN109578242 B CN 109578242B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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Abstract
The invention discloses a suction muffler and a compressor, which are used in the field of compressors, wherein the suction muffler is provided with an air inlet end which can be connected with an air suction port of the compressor, the inner side of the neck part of the air inlet end of the suction muffler is provided with a flow dividing structure, and the compressor comprises the suction muffler. According to the invention, the flow dividing structure is arranged at the neck part of the air inlet end of the air suction silencer, so that the air flow at the air inlet end of the silencer can be ensured to be stable and uniform through the flow dividing structure, and the impact on the tongue part of the air suction valve plate is prevented, thereby avoiding harmful torsional deformation, influence on the opening rule of the air valve and breakage and failure of the air suction valve plate.
Description
Technical Field
The invention is used in the field of compressors, and particularly relates to a suction muffler and a compressor.
Background
The suction muffler is a key component of the compressor, and its main functions include reducing suction noise and improving suction efficiency. The traditional air flow at the outlet of the air suction silencer is very uneven, so that the uneven air flow quickly flows into a cylinder hole and impacts on the tongue part of the air suction valve plate to push the tongue part to open. The structure of the suction valve plate is shown in figure 1, and the tongue part of the suction valve plate has larger width dimension, when the suction valve plate is impacted by uneven airflow, the tongue part is unevenly stressed and generates torsional deformation, the opening rule of the tongue part of the suction valve plate is seriously influenced, harmful torsional deformation is generated, and the tongue part of the suction valve plate is cracked in serious cases.
In the traditional silencer of breathing in, in order better realization to breathe in and fall make an uproar and promote the efficiency of breathing in, the honeycomb duct that has specific fluting of air current is inhaled in the inside guide that sets up of silencer body of breathing in usually. The honeycomb duct is usually of a special-shaped structure and has more small-radius sharp turns. Therefore, when the compressor is used for air intake, the intake air flow is guided by the guide pipe and quickly passes through a sharp turn, and the air flow can intensively flow along the outer edge of the corner under the action of inertia force and forms rebound. The guide pipe sharp-turning structure is arranged near the outlet of the suction muffler, and the air flow at the outlet of the muffler is very uneven in the suction muffler with the structure. Thus, uneven airflow flows into the cylinder hole quickly and impacts the tongue part of the air suction valve plate to push the tongue part to open. The tongue of the air suction valve plate has larger width dimension, and when the tongue is impacted by uneven airflow, the tongue is stressed unevenly, can generate torsional deformation, seriously influences the opening rule of the tongue of the air suction valve plate, generates harmful torsional deformation, and can cause the tongue of the air suction valve plate to crack in serious cases.
Disclosure of Invention
The invention aims to provide a suction muffler and a compressor, which have a turbulent flow function and ensure that the airflow at the outlet position of the muffler is stable and uniform.
The technical scheme adopted by the invention for solving the technical problems is as follows: the suction muffler has an air inlet end connected to the air inlet of compressor, and a flow dividing structure in the neck of the air inlet end.
As a further improvement of the technical scheme of the invention, the flow dividing structure comprises a flow dividing plate, and the flow dividing plate divides the inner cavity of the neck part of the air inlet end into a plurality of air flow channels.
As further improvement of the technical scheme of the invention, the splitter plate is arranged along the airflow direction.
Further as an improvement of the technical scheme of the invention, the flow distribution plate is a straight plate or a curved plate.
Further as an improvement of the technical scheme of the invention, the flow distribution plate is provided with a flow distribution structure, and the flow distribution structure comprises one or more of a flow distribution convex hull, a flow distribution convex point and a flow distribution concave pit.
The improved structure further comprises a mounting base, the flow distribution plate is arranged on the mounting base, the neck of the air inlet end is provided with a base connecting structure, and the flow distribution plate is limited on the inner side of the neck of the air inlet end after the mounting base is matched with the base connecting structure.
The invention further provides an improvement of the technical scheme, the base connecting structure comprises a base connecting groove, a through hole and a base positioning surface are arranged at the bottom of the base connecting groove, the mounting base is attached to the base positioning surface after being embedded into the base connecting groove and is connected with the base connecting groove through a buckle, a cambered surface which is copying to an inner cavity of a neck part of the air inlet end is arranged in a region corresponding to the through hole of the mounting base, the flow distribution plate is arranged on the cambered surface, the flow distribution plate penetrates through the through hole to enter the inner cavity of the neck part of the air inlet end, a flow distribution plate mounting groove is arranged on the opposite side of the through hole of.
The air inlet end of the air suction silencer is limited on one side of the valve plate through a contour groove on the cylinder cover, a limiting groove is formed in the contour groove of the cylinder cover, a limiting tooth matched with the limiting groove is arranged at the air inlet end of the air suction silencer, a base connecting groove is formed in one side, facing the valve plate, of the neck of the air inlet end, and after the mounting base is embedded into the base connecting groove, the mounting base is flush with the outer surface of the neck of the air inlet end.
Further as an improvement of the technical scheme of the invention, a flow guide pipe is arranged in the air suction silencer, the front end of the flow guide pipe is connected with the air suction end of the air suction silencer, the rear end of the flow guide pipe is connected with the air inlet end of the air suction silencer, the distance between the front end of the flow distribution plate and the outlet of the flow guide pipe is 6-10 mm, and the distance between the rear end of the flow distribution plate and the outlet of the air inlet end is 3-5 mm.
A compressor comprising a suction muffler as described above.
The invention has the beneficial effects that: according to the invention, the flow dividing structure is arranged at the neck part of the air inlet end of the air suction silencer, so that the air flow at the air inlet end of the silencer can be ensured to be stable and uniform through the flow dividing structure, and the impact on the tongue part of the air suction valve plate is prevented, thereby avoiding harmful torsional deformation, influence on the opening rule of the air valve and breakage and failure of the air suction valve plate.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a suction valve plate;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
fig. 3-6 are schematic structural views of different embodiments of the splitter plate of the present invention;
FIG. 7 is a schematic structural diagram illustrating a mounting base embedded in a base connecting groove according to an embodiment of the present invention;
FIG. 8 is a schematic view of the inlet end of a suction muffler in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram of a usage state of the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the present invention, if directions (up, down, left, right, front, and rear) are described, the structure shown in fig. 9 is referred to as a description, but it is only for convenience of describing the technical solution of the present invention, and it is not intended to indicate or imply that the technical features referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus it is not to be construed as limiting the present invention.
In the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than", and the like are understood as not including the number; the terms "above", "below", "within" and the like are to be understood as including the number. In the description of the present invention, if there is description of "first" and "second" for the purpose of distinguishing technical features only, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.
The invention provides a suction muffler.A suction muffler 1 is provided with an air inlet end 11 which can be connected with an air inlet of a compressor, and a flow dividing structure is arranged on the inner side of the neck of the air inlet end 11 of the suction muffler 1. According to the invention, the neck of the air inlet end 11 of the air suction muffler 1 is provided with the flow dividing structure, the flow dividing structure can adopt the structures of the flow dividing block, the flow dividing plate 2, the flow dividing fins and the like, and the flow dividing structure can ensure that the airflow at the air inlet end 11 of the muffler is stable and uniform and can prevent the airflow from impacting the tongue part of the air suction valve plate, so that the harmful torsional deformation, the influence on the opening rule of the air valve and the breakage and failure of the air suction valve plate are avoided.
In certain embodiments, referring to fig. 7, the flow dividing structure comprises a flow dividing plate 2, and the flow dividing plate 2 divides the neck cavity of the inlet end 11 into a plurality of air flow passages. The neck of the air inlet end 11 of the air suction silencer 1 is provided with the splitter plate 2, the inner cavity of the neck of the air inlet end 11 is divided into a plurality of air flow channels through the splitter plate 2, so that the air flow of the air inlet end 11 of the air suction silencer can be ensured to be stable and uniform, and the impact on the tongue part of the air suction valve block is prevented, thereby avoiding harmful torsional deformation, influencing the opening rule of the air valve and causing the breakage and failure of the air suction valve block.
In some embodiments, the flow dividing plate 2 is arranged along the airflow direction, so that the area of an air suction passage is reduced due to the arrangement of the flow dividing plate 2, and the reduction of air inlet efficiency is avoided.
Referring to fig. 3 and 4, in some embodiments, the splitter plate 2 is a flat plate or a curved plate. The curved plate can have a regular or irregular twisted shape, and plays a role in turbulence.
Referring to fig. 5 and 6, the flow distribution plate 2 is provided with a flow distribution structure, and the flow distribution structure includes one or more of a flow distribution convex hull 21, a flow distribution convex hull 22, and a flow distribution concave hull 23. The turbulent convex hull 21 can enable the flow field concentrated on one side to be disturbed, and after the turbulent convex hull is released again, the uniform airflow distribution is obtained, the airflow enters the cylinder hole, and when the tongue portion of the air suction valve plate is impacted, the acting force is uniform. Similarly, the turbulence salient points and the turbulence pits can ensure that the flow field is distributed more uniformly.
The flow divider 2 may be directly integrated or assembled with the suction muffler 1, as shown in fig. 2-7, and in some embodiments, further includes a mounting base 24, the flow divider 2 is disposed on the mounting base 24, a base connecting structure is disposed at a neck portion of the air inlet end 11, and the flow divider 2 is defined inside the neck portion of the air inlet end 11 after the mounting base 24 is engaged with the base connecting structure.
The base connection structure may be a connection seat, a connection groove, etc., and the mounting base 24 and the base connection structure may be connected by bonding, screwing, fastening, etc. Referring to fig. 2, 7 and 8, in some embodiments, the base connection structure includes a base connection groove 12, a through hole 13 and a base positioning surface 14 are provided at a bottom of the base connection groove 12, and a mounting base 24 is embedded in the base connection groove 12, attached to the base positioning surface 14, and connected to the base connection groove 12 by a snap fastener, which may take various forms, such as a snap groove provided in the base connection groove 12, and a snap projection provided on the mounting base 24; or a clamping protrusion is arranged on the base connecting groove 12, and a clamping groove is arranged on the mounting base 24. The buckle connection mode, convenient assembling is difficult for taking off, avoids breathing in and leaks. The installation base 24 is provided with an arc surface 25 which is formed by copying with the neck inner cavity of the air inlet end 11 in the area corresponding to the through hole 13, so that the air inlet of the air suction silencer 1 is ensured to be smooth and has no extra resistance. The flow distribution plate 2 is arranged on the cambered surface 25, the flow distribution plate 2 penetrates through the through hole 13 to enter the inner cavity of the neck of the air inlet end 11, the flow distribution plate mounting groove 15 is formed in the opposite side of the through hole 13 of the neck of the air inlet end 11, the end part of the flow distribution plate 2 is embedded into the flow distribution plate mounting groove 15, and the stability of the flow distribution plate 2 on the air suction silencer 1 is guaranteed.
Referring to fig. 9, the air inlet end 11 of the air suction muffler 1 is limited on one side of the valve plate 4 through the contour groove on the cylinder cover 3, the outlet of the air inlet end 11 of the air suction muffler 1 is butted with the air inlet of the valve plate 4, the contour groove of the cylinder cover 3 is provided with a limiting groove 31, the air inlet end 11 of the air suction muffler 1 is provided with a limiting tooth 16 matched with the limiting groove 31, the neck of the air inlet end 11 is provided with a base connecting groove 12 on one side facing the valve plate 4, after the mounting base 24 is embedded into the base connecting groove 12, the mounting base 24 is flush with the outer surface of the neck of the air inlet end 11, the air suction muffler 1 can be well sealed under the pressure action of the.
The inside honeycomb duct 5 that is equipped with of muffler 1 breathes in, the front end of honeycomb duct 5 and the end connection of breathing in of muffler 1, the rear end of honeycomb duct 5 and the inlet end 11 of breathing in muffler 1 are connected, and according to CAE calculated result, the distance of the front end of flow distribution plate 2 and 5 exports of honeycomb duct is 6 ~ 10mm, and the distance of the rear end of flow distribution plate 2 and 11 exports of inlet end is 3 ~ 5 mm. Within this size range, the airflow field stability is optimal.
In some embodiments, the diverter plate 2 and the mounting base 24 are preferably made of metal, but plastic or other materials may be used. The metal material can ensure that the thickness of the splitter plate 2 is very small, reduce the area of an air suction channel caused by the splitter plate 2 and avoid the reduction of air inlet efficiency.
A compressor comprising a suction muffler as described above.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (8)
1. A suction muffler characterized by: the suction muffler is provided with an air inlet end which can be connected with the air suction port of the compressor, the inner side of the neck part of the air inlet end of the suction muffler is provided with a flow dividing structure, the flow dividing structure comprises a flow dividing plate which divides an inner cavity at the neck part of the air inlet end into a plurality of airflow channels, and also comprises a mounting base, the flow dividing plate is arranged on the mounting base, the neck part of the air inlet end is provided with a base connecting structure, after the mounting base is matched with the base connecting structure, the flow distribution plate is limited at the inner side of the neck part of the air inlet end, the base connecting structure comprises a base connecting groove, a through hole and a base positioning surface are arranged at the bottom of the base connecting groove, the mounting base is embedded into the base connecting groove and then is attached to the base positioning surface, and pass through the buckle with the base spread groove and be connected, the flow distribution plate passes the via hole and gets into inlet end neck inner chamber, and the inlet end neck is equipped with the flow distribution plate mounting groove in the via hole offside, and the tip embedding flow distribution plate mounting groove of flow distribution plate.
2. The suction muffler of claim 1, wherein: the splitter plate is arranged along the direction of the air flow.
3. The suction muffler according to claim 1 or 2, wherein: the flow distribution plate is a straight plate or a curved plate.
4. The suction muffler according to claim 1 or 2, wherein: the flow distribution plate is provided with a flow distribution structure, and the flow distribution structure comprises one or more of flow distribution convex hulls, flow distribution convex points and flow distribution concave pits.
5. The suction muffler of claim 1, wherein: the installation base is equipped with the cambered surface with the profile modeling of inlet end neck portion inner chamber in the region that the via hole corresponds, the flow distribution plate is established on the cambered surface.
6. The suction muffler of claim 5, wherein: the inlet end of the air suction silencer is limited on one side of the valve plate through the contour groove on the cylinder cover, the contour groove on the cylinder cover is provided with a limiting groove, the inlet end of the air suction silencer is provided with a limiting tooth matched with the limiting groove, the neck of the inlet end is provided with a base connecting groove on one side facing the valve plate, and after the mounting base is embedded into the base connecting groove, the mounting base is flushed with the outer surface of the neck of the inlet end.
7. The suction muffler of claim 2, wherein: the inside honeycomb duct that is equipped with of muffler breathes in, the front end of honeycomb duct is connected with the end of breathing in of muffler, and the rear end of honeycomb duct is connected with the inlet end of the muffler of breathing in, and the front end of flow distribution plate is 6 ~ 10mm with the distance of honeycomb duct export, and the rear end of flow distribution plate is 3 ~ 5mm with the distance of inlet end export.
8. A compressor, characterized by: comprising a suction muffler according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206361.6A CN109578242B (en) | 2018-10-17 | 2018-10-17 | Air suction silencer and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206361.6A CN109578242B (en) | 2018-10-17 | 2018-10-17 | Air suction silencer and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578242A CN109578242A (en) | 2019-04-05 |
| CN109578242B true CN109578242B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811206361.6A Active CN109578242B (en) | 2018-10-17 | 2018-10-17 | Air suction silencer and compressor |
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| Country | Link |
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| CN (1) | CN109578242B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362234C (en) * | 2004-07-23 | 2008-01-16 | 加西贝拉压缩机有限公司 | Aspiration silicencer for compressor |
| CN2833127Y (en) * | 2005-11-12 | 2006-11-01 | 杨百昌 | Energy-saving muffler for enclosed refrigerant compressor |
| KR20070096393A (en) * | 2006-03-23 | 2007-10-02 | 삼성광주전자 주식회사 | Hermetic type compressor |
| CN100585178C (en) * | 2006-06-06 | 2010-01-27 | 加西贝拉压缩机有限公司 | Suction muffler for compressor |
| CN107725323A (en) * | 2017-09-26 | 2018-02-23 | 台州宝乾机电有限公司 | A kind of muffler and its noise reduction method |
-
2018
- 2018-10-17 CN CN201811206361.6A patent/CN109578242B/en active Active
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| CN109578242A (en) | 2019-04-05 |
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