CN109469599B - Air suction silencer and compressor - Google Patents
Air suction silencer and compressor Download PDFInfo
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- CN109469599B CN109469599B CN201811479893.7A CN201811479893A CN109469599B CN 109469599 B CN109469599 B CN 109469599B CN 201811479893 A CN201811479893 A CN 201811479893A CN 109469599 B CN109469599 B CN 109469599B
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- shell
- air inlet
- guide pipe
- suction muffler
- compressor
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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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- General Engineering & Computer Science (AREA)
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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 comprises a shell, wherein the shell is provided with an air inlet and an air outlet, the air inlet is arranged on the side wall of the shell by avoiding the top end of the shell, and the bottom of the shell is provided with a shell oil leakage hole; and the flow guide pipe is connected between the air inlet and the air outlet, and the bottom pipe wall of the flow guide pipe is provided with a flow guide pipe oil leakage hole. Compressor comprising a suction muffler as described above. Through setting up the honeycomb duct, be equipped with the honeycomb duct oil leak hole on the bottom pipe wall of honeycomb duct, be equipped with casing oil leak hole bottom the casing, when liquid lubricating oil got into the muffler air inlet, the muffler can be with inhaling the lubricating oil separation of coming in, outside the discharge muffler, guarantee to effectively avoid the liquid to hit, reduce or avoid the harmful effects of liquid to the compressor. Meanwhile, the air inlet avoids the top end of the shell, so that the temperature of the refrigerant sucked through the air inlet is lower, and the cold quantity and the efficiency of the compressor are improved.
Description
Technical Field
The invention is used in the field of compressors, and particularly relates to a suction muffler and a compressor.
Background
With the improvement of living standard of people, more and more household vehicles are equipped with vehicle-mounted refrigerators. The compressor used for the vehicle-mounted refrigerator must be considered to avoid liquid impact because the vehicle has strong jolt in the driving process and has a large-angle inclination in the uphill and downhill. When the vehicle bumps or goes up and down a slope, if the lubricating oil enters the cylinder of the compressor through the intake port of the suction muffler, liquid slugging is caused. Liquid slugging can cause quality failures such as compressor valve failure, poor start-up, etc.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the prior art, and an object of the present invention is to provide a suction muffler and a compressor, which can reduce or prevent an adverse effect of liquid impact on the compressor.
The technical scheme adopted by the invention for solving the technical problems is as follows: an air suction muffler comprises
The air inlet is arranged on the side wall of the shell and avoids the top end of the shell, and the bottom of the shell is provided with a shell oil leakage hole;
and the flow guide pipe is connected between the air inlet and the air outlet, and the bottom pipe wall of the flow guide pipe is provided with a flow guide pipe oil leakage hole.
As further improvement of the technical scheme of the invention, the guide pipe is provided with a lubricating oil impact surface which is over against the air inlet.
The invention is further improved by the technical scheme that the front end pipe orifice of the flow guide pipe is arranged on the side wall of the flow guide pipe, and the flow guide pipe is over against the pipe wall of the front end pipe orifice to form a lubricating oil impact surface.
As further improvement of the technical scheme of the invention, the guide pipe is provided with a plurality of guide pipe silencing cavities with enlarged section sizes.
The guide pipe comprises a descending section extending obliquely downwards, a flat section extending transversely and an ascending section extending upwards along the air suction direction, and the guide pipe silencing cavity comprises a first guide pipe silencing cavity arranged on the descending section and a second guide pipe silencing cavity arranged on the flat section.
As further improvement of the technical scheme of the invention, a plurality of clapboards are arranged in the shell, and the clapboards divide the inner space of the shell into a plurality of shell silencing cavities.
As the improvement of the technical scheme of the invention, the oil leakage hole of the shell is positioned on the side wall of the bottom of the shell.
As further improvement of the technical scheme of the invention, an oil baffle plate is arranged above the oil leakage hole of the shell on the shell.
The invention further provides an improvement of the technical scheme, the shell comprises a lower shell and an upper cover, the top of the lower shell is open, the upper cover is tightly connected with the top of the lower shell, the air inlet is formed in the side wall of the lower shell, the air outlet is formed in the upper cover, and the upper cover is provided with an air outlet pipe led out from the air outlet.
A compressor comprising a suction muffler as described above.
One of the above technical solutions has at least one of the following advantages or beneficial effects: set up the honeycomb duct, be equipped with the honeycomb duct oil leak hole on the bottom pipe wall of honeycomb duct, be equipped with casing oil leak hole bottom the casing, when liquid lubricating oil got into the muffler air inlet, the muffler can be with inhaling the lubricating oil separation of coming in, outside the discharge muffler, guarantee to effectively avoid the liquid to hit, reduce or avoid the harmful effects of liquid to the compressor. Meanwhile, the air inlet avoids the top end of the shell, so that the temperature of the refrigerant sucked through the air inlet is lower, and the cold quantity and the efficiency of the compressor are improved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded schematic view of an embodiment of the present invention;
FIG. 3 is a schematic view of a draft tube and a partition plate according to an 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. 2 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.
In order to solve the problem that the liquid impact can cause quality faults such as failure of a gas valve of the compressor, poor starting and the like, the inventor seeks various solutions, for example, an air suction port of an air suction silencer is designed to be vertically upward, and the air suction port is far away from a lubricating oil pool at the bottom of a shell of the compressor. However, this solution has the following disadvantages:
1. because the temperature of the refrigerant on the upper part of the shell is higher, the temperature of the sucked gas is higher when the suction port of the suction muffler is arranged upwards, and the cold energy and the efficiency of the compressor are lost.
2. The suction muffler has a suction port upwardly disposed, so that the suction pipe of the compressor needs to be disposed at the upper end (upper cover) of the casing, and the discharge pipe and the process pipe of the compressor are disposed at the lower casing, with the result that the welding process of the compressor casing is complicated.
3. Because the upper shell has a suction pipe, the packing of the compressor is also more complicated and the overall cost of the compressor is high.
The inventors have further sought a solution, and referring to fig. 1, 2, 3, embodiments of the present invention provide a suction muffler comprising
The air inlet 1 is arranged on the side wall of the shell and avoids the top end of the shell, and the bottom of the shell is provided with a shell oil leakage hole 3;
and the flow guide pipe 4 is connected between the air inlet 1 and the air outlet 2, and the bottom pipe wall of the flow guide pipe 4 is provided with a flow guide pipe oil leakage hole 5.
Set up honeycomb duct 4, be equipped with honeycomb duct oil leak hole 5 on the bottom pipe wall of honeycomb duct 4, be equipped with casing oil leak hole 3 bottom the casing, when liquid lubricating oil got into muffler air inlet 1, the muffler can be with inhaling the lubricating oil separation of coming in, outside the discharge muffler, guarantee to effectively avoid the liquid to hit, reduce or avoid the harmful effects of liquid to the compressor.
Meanwhile, the air inlet 1 avoids the top end of the shell, so that the temperature of the refrigerant sucked through the air inlet 1 is lower, and the cold quantity and the efficiency of the compressor are improved.
In one or some embodiments, the draft tube 4 is completely or partially arranged in the shell, the draft tube 4 is provided with a lubricating oil impact surface facing the air inlet 1, the liquid lubricating oil sucked in from the inlet of the silencer impacts the lubricating oil impact surface on the opposite side of the air inlet 1 of the draft tube 4, and large lubricating oil beads are smashed, adhered to the surface of the draft tube 4 and flow to the bottom of the inner cavity of the silencer; the small lubricating oil droplets are crushed and atomized, which is helpful for the silencer to separate and discharge the sucked lubricating oil out of the silencer.
In one or some embodiments, the lubricant impact surface is formed by disposing an impact member in the draft tube 4, and preferably, the front nozzle 13 of the draft tube 4 is disposed on the side wall of the draft tube 4, and the wall of the draft tube 4 facing the front nozzle forms the lubricant impact surface. Liquid lubricating oil sucked from the inlet of the silencer impacts the pipe wall on the opposite side of the air inlet 1 of the flow guide pipe 4, and large lubricating oil droplets are crushed and adhered to the surface of the flow guide pipe 4 and flow to the bottom of the inner cavity of the silencer; the small lubricating oil droplets are crushed and atomized, which is helpful for the silencer to separate and discharge the sucked lubricating oil out of the silencer.
In one or some embodiments, the draft tube 4 is provided with a plurality of draft tube sound attenuation cavities 6 with enlarged cross-sectional dimensions. The shape of the draft tube silencing cavity 6 can be irregular, spherical, spindle-shaped and the like, preferably, the draft tube silencing cavity 6 adopts a spherical structure with a suddenly enlarged section, when the airflow flowing through the draft tube 4 passes through the draft tube silencing cavity 6 with the suddenly enlarged section area, the speed of the airflow is suddenly reduced, but the speed of the lubricating oil liquid beads carried by the airflow is kept unchanged, so that the lubricating oil liquid beads can be effectively separated, and the silencer can separate and discharge the sucked lubricating oil out of the silencer. In addition, the draft tube muffling chamber 6 has a larger flow cross section, and the suction airflow pulsation loses noise energy due to expansion in the spherical structure, thereby having a suction muffling function.
In one or some embodiments, the flow guiding pipe 4 is in a curved or bent shape, preferably, the flow guiding pipe 4 comprises a descending section extending obliquely downwards, a flat section extending transversely and an ascending section extending upwards along the air suction direction, and the flow guiding pipe sound attenuation chamber 6 comprises a first flow guiding pipe sound attenuation chamber arranged on the descending section and a second flow guiding pipe sound attenuation chamber arranged on the flat section. Liquid lubricating oil sucked into the inlet of the silencer moves forward along the guide pipe 4 along with the refrigerant, and large lubricating oil droplets are crushed and adhered to the surface of the guide pipe 4 under the action of the shape of the guide pipe 4 and the silencing cavity 6 of the guide pipe and flow to the bottom of the inner cavity of the silencer; and the lowest point of the draft tube 4 is provided with a draft tube oil leakage hole 5, and the liquid lubricating oil separated from the air flow flows to the bottom of the inner cavity of the silencer shell through the draft tube oil leakage hole 5. The small lubricating oil droplets are crushed and atomized, which is helpful for the silencer to separate and discharge the sucked lubricating oil out of the silencer.
In one or some embodiments, a plurality of partition plates are arranged in the shell, and the partition plates divide the inner space of the shell into a plurality of shell silencing cavities. Preferably, the partition plates comprise a longitudinal partition plate 7 and a transverse partition plate 8, the longitudinal partition plate 7 and the transverse partition plate 8 divide the inner space of the shell into three large air suction and sound deadening chambers, and two small air suction and sound deadening chambers on the flow guide pipe 4 are additionally arranged, namely five sound deadening chambers are arranged, so that the sound deadening effect is better.
In one or some embodiments, the casing oil leakage hole 3 is located on the bottom side wall or bottom of the casing, in the prior art, the oil leakage holes at the bottom of the compressor suction muffler are all arranged at the lowest point of the bottom of the muffler, the outlet is downward in the vertical direction, and when the compressor lubricating oil pool fluctuates greatly, the oil leakage holes are easy to flow backwards into the suction muffler from the oil leakage holes. Therefore, the oil leakage hole 3 of the shell is preferably positioned on the side wall of the bottom of the shell, so that lubricating oil is prevented from flowing backwards through the oil leakage hole and entering the suction muffler, liquid impact can be effectively avoided, and adverse effects of the liquid impact on the compressor are reduced or avoided.
In one or some embodiments, the oil baffle plate 9 is arranged above the shell oil leakage hole 3 on the shell, and the oil baffle plate 9 is arc-shaped or fold-line-shaped, and the like, because lubricating oil possibly splashes from a crankshaft of the compressor and then flows through the outer surface of the suction muffler, the oil baffle plate 9 can effectively prevent the lubricating oil from entering the shell oil leakage hole 3 on the side surface of the muffler.
In one or some embodiments, the housing is a separate structure, for example, comprises a plurality of housing components, which are assembled and connected to each other to form a whole, and preferably, the housing comprises a lower housing 10 and an upper cover 11, wherein the top of the lower housing 10 is open, and the upper cover 11 is tightly connected with the top of the lower housing 10. The air inlet 1 is arranged on the side wall of the lower shell 10, the air outlet 2 is arranged on the upper cover 11, and the upper cover 11 is provided with an air outlet pipe 12 led out from the air outlet 2. In this embodiment, the corresponding suction pipe of the compressor may be disposed on the lower casing 10, and welded to the lower casing together with the discharge pipe and the process pipe of the compressor, so as to reduce the cost of the compressor.
A compressor comprising a suction muffler as described in any one of the above embodiments.
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: comprises that
The air inlet is arranged on the side wall of the shell and avoids the top end of the shell, and the bottom of the shell is provided with a shell oil leakage hole;
the honeycomb duct is connected between the air inlet and the air outlet, a honeycomb duct oil leakage hole is formed in the tube wall of the bottom of the honeycomb duct, the honeycomb duct is provided with a lubricating oil impact surface right facing the air inlet, a front end tube orifice of the honeycomb duct is formed in the side wall of the honeycomb duct, and the honeycomb duct forms a lubricating oil impact surface right facing the tube wall of the front end tube orifice.
2. The suction muffler of claim 1, wherein: the guide pipe is provided with a plurality of guide pipe silencing cavities with enlarged cross-sectional sizes.
3. The suction muffler of claim 2, wherein: the guide pipe comprises a descending section, a flat section and an ascending section, wherein the descending section extends obliquely downwards, the flat section extends transversely, the ascending section extends upwards, and the guide pipe silencing cavity comprises a first guide pipe silencing cavity arranged on the descending section and a second guide pipe silencing cavity arranged on the flat section.
4. The suction muffler of claim 1, wherein: the shell is internally provided with a plurality of clapboards which divide the inner space of the shell into a plurality of shell silencing cavities.
5. The suction muffler of claim 1, wherein: the shell oil leakage hole is positioned on the side wall of the bottom of the shell.
6. The suction muffler of claim 5, wherein: an oil baffle plate is arranged above the oil leakage hole of the shell.
7. The suction muffler of claim 1, wherein: the casing includes casing and upper cover down, and the casing top is uncovered down, and the top zonulae occludens of upper cover and lower casing, air inlet establish on the lateral wall of casing down, and the gas outlet is established on covering, covers on and is equipped with the outlet duct of drawing forth by the gas outlet.
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 |
|---|---|---|---|
| CN201811479893.7A CN109469599B (en) | 2018-12-05 | 2018-12-05 | Air suction silencer and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479893.7A CN109469599B (en) | 2018-12-05 | 2018-12-05 | Air suction silencer and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469599A CN109469599A (en) | 2019-03-15 |
| CN109469599B true CN109469599B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479893.7A Active CN109469599B (en) | 2018-12-05 | 2018-12-05 | Air suction silencer and compressor |
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| Country | Link |
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| CN (1) | CN109469599B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11846276B2 (en) | 2020-11-30 | 2023-12-19 | Anhui Meizhi Compressor Co., Ltd. | Suction muffler |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594414B (en) | 2019-02-20 | 2021-06-29 | 安徽美芝制冷设备有限公司 | Silencer and compressor |
| CN111059028A (en) * | 2019-12-09 | 2020-04-24 | 安徽美芝制冷设备有限公司 | Silencer, compressor and refrigeration equipment |
| CN110985342B (en) * | 2019-12-19 | 2021-04-20 | 西安交通大学 | Air suction muffler for refrigerator compressor |
| CN114576138B (en) * | 2020-11-30 | 2023-04-28 | 安徽美芝制冷设备有限公司 | Suction muffler |
| CN115163495A (en) * | 2022-07-15 | 2022-10-11 | 江森自控空调冷冻设备(无锡)有限公司 | Noise elimination unit and noise elimination structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074354A (en) * | 1993-04-24 | 1995-01-10 | Gold Star Co Ltd | Refrigerant suction-discharge device for sealed type compressor |
| KR20050059494A (en) * | 2003-12-15 | 2005-06-21 | 삼성광주전자 주식회사 | Hermetic compressor |
| CN201437764U (en) * | 2009-05-27 | 2010-04-14 | 加西贝拉压缩机有限公司 | Air suction silencer with air storage cavity for compressor |
| CN104110358A (en) * | 2014-07-01 | 2014-10-22 | 安徽美芝制冷设备有限公司 | Suction silencer and compressor provided with same |
| CN104564609A (en) * | 2015-01-05 | 2015-04-29 | 安徽美芝制冷设备有限公司 | Piston type compressor and air-suction silencer thereof |
| CN104879288A (en) * | 2015-06-15 | 2015-09-02 | 安徽美芝制冷设备有限公司 | Air suction muffler and compressor provided with same |
| CN205977605U (en) * | 2016-08-15 | 2017-02-22 | 广州市乾能机械制造有限公司 | Compressor muffler of breathing in |
-
2018
- 2018-12-05 CN CN201811479893.7A patent/CN109469599B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074354A (en) * | 1993-04-24 | 1995-01-10 | Gold Star Co Ltd | Refrigerant suction-discharge device for sealed type compressor |
| KR20050059494A (en) * | 2003-12-15 | 2005-06-21 | 삼성광주전자 주식회사 | Hermetic compressor |
| CN201437764U (en) * | 2009-05-27 | 2010-04-14 | 加西贝拉压缩机有限公司 | Air suction silencer with air storage cavity for compressor |
| CN104110358A (en) * | 2014-07-01 | 2014-10-22 | 安徽美芝制冷设备有限公司 | Suction silencer and compressor provided with same |
| CN104564609A (en) * | 2015-01-05 | 2015-04-29 | 安徽美芝制冷设备有限公司 | Piston type compressor and air-suction silencer thereof |
| CN104879288A (en) * | 2015-06-15 | 2015-09-02 | 安徽美芝制冷设备有限公司 | Air suction muffler and compressor provided with same |
| CN205977605U (en) * | 2016-08-15 | 2017-02-22 | 广州市乾能机械制造有限公司 | Compressor muffler of breathing in |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11846276B2 (en) | 2020-11-30 | 2023-12-19 | Anhui Meizhi Compressor Co., Ltd. | Suction muffler |
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| CN109469599A (en) | 2019-03-15 |
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