CN109595171B - Compressor and refrigerating system with same - Google Patents
Compressor and refrigerating system with same Download PDFInfo
- Publication number
- CN109595171B CN109595171B CN201710919618.1A CN201710919618A CN109595171B CN 109595171 B CN109595171 B CN 109595171B CN 201710919618 A CN201710919618 A CN 201710919618A CN 109595171 B CN109595171 B CN 109595171B
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- 238000000926 separation method Methods 0.000 claims abstract description 95
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000006835 compression Effects 0.000 claims abstract description 59
- 238000007906 compression Methods 0.000 claims abstract description 59
- 238000004891 communication Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 139
- 230000000694 effects Effects 0.000 description 11
- 238000005192 partition Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000030279 gene silencing Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention discloses a compressor and a refrigerating system with the same, wherein the compressor comprises: a housing defining a containment cavity therein, the containment cavity having an oil sump therein; a compression mechanism having a suction inlet and a discharge outlet; the oil separation cavity is formed in the accommodating cavity and is defined between the oil separation cavity and the compression mechanism, the oil separation cavity is provided with an oil gas inlet, an oil liquid outlet facing the oil tank and a gas outlet facing away from the oil tank, the oil gas inlet is communicated with the exhaust outlet, and one end, far away from the oil gas inlet, of the oil separation structure is provided with a stop part. According to the compressor provided by the embodiment of the invention, the oil discharge amount is low, the oil level is stable, and the exhaust resistance is small.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a compressor and a refrigeration system with the same.
Background
In order to reduce the oil discharge amount of the compressor, an oil-gas separation device is arranged in the compressor to separate oil from gas of high pressure discharged by the compression mechanism, separated oil returns to the oil pool, and separated gas is discharged through an exhaust port of the compressor. The oil-gas separation device in the related art has poor oil-gas separation effect, large oil discharge amount of the compressor, unstable oil surface and large exhaust resistance of the compressor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides a compressor, which has low oil discharge amount, stable oil surface and small exhaust resistance.
The invention also provides a refrigerating system with the compressor.
An embodiment of a compressor according to a first aspect of the present invention includes: a housing defining a containment cavity therein, the containment cavity having an oil sump therein; a compression mechanism having a suction inlet and a discharge outlet; the oil separation cavity is formed in the accommodating cavity and is defined between the oil separation cavity and the compression mechanism, the oil separation cavity is provided with an oil gas inlet, an oil liquid outlet facing the oil tank and a gas outlet facing away from the oil tank, the oil gas inlet is communicated with the exhaust outlet, and one end, far away from the oil gas inlet, of the oil separation structure is provided with a stop part.
According to the compressor provided by the embodiment of the invention, the oil-gas separation effect of the oil structure is good, so that the oil discharge amount of the compressor is low, the oil level is stable, and the exhaust resistance of the compressor is small.
In addition, the compressor according to the embodiment of the invention may further have the following additional technical features:
according to one embodiment of the present invention, the oil-gas separation chamber is formed in an arc ring shape surrounding the outer peripheral wall of the compression mechanism portion.
Optionally, the oil-gas inlet is arranged on an axial end wall of the oil-gas separation cavity, the gas outlet is arranged on a radial side wall of the oil-gas separation cavity, and the oil liquid outlet is arranged on a circumferential end wall of the oil-gas separation cavity.
Optionally, the oil content structure includes along the axially extending arciform mainboard of compressing mechanism and locates the mainboard one end along compressing mechanism's radial inwards extending arciform baffle, the oil content structure dustcoat is in compressing mechanism's periphery wall is last, the other end of mainboard with the baffle all with compressing mechanism seal fit is in order to limit the oil-gas separation chamber, the internal surface of baffle forms the backstop portion, the mainboard keep away from the baffle one end with define between the compressing mechanism the oil gas import, the circumference tip of mainboard with define between the compressing mechanism the fluid export, the gas export forms on the mainboard.
Optionally, the mainboard includes the mainboard body and locates the circumference both ends of mainboard body and along the radially inwards extending end plate of compression mechanism, gas outlet locates on the mainboard body, the end plate with inject between the compression mechanism the fluid export.
Optionally, an annular flange extending inwards along the radial direction of the oil-gas separation cavity is arranged at the edge of the gas outlet.
Optionally, the ratio of the length of the flange in the radial direction of the oil-gas separation cavity to the length of the baffle in the radial direction of the oil-gas separation cavity is 0.2-0.5.
According to one embodiment of the invention, the compression mechanism comprises a cylinder assembly and two bearing parts arranged at two axial ends of the cylinder assembly, one end, far away from the stop part, of the oil component structure is in sealing fit with one of the two bearing parts, a through hole is formed in the bearing part matched with the oil component structure, and the exhaust outlet is communicated with the oil gas inlet through the through hole.
According to one embodiment of the invention, the muffler further comprises a muffler having a muffler chamber and an inlet and an outlet in communication with the muffler chamber, the inlet in communication with the exhaust outlet and the outlet in communication with the oil and gas inlet.
A refrigeration system according to an embodiment of the second aspect of the present invention includes a compressor according to an embodiment of the first aspect of the present invention described above.
According to the refrigerating system provided by the embodiment of the invention, the compressor according to the embodiment of the first aspect of the invention is arranged, so that the refrigerating system has all the advantages of the compressor, and the working performance of the refrigerating system is good.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a sectional view of a compressor according to an embodiment of the present invention;
FIG. 2 is a sectional view of a part of the structure of the compressor shown in FIG. 1;
fig. 3 is a top view of a partial structure of a compressor according to an embodiment of the present invention;
FIG. 4 is a top view of an oil structure according to one embodiment of the invention;
FIG. 5 is a side view (right to left) of the oil structure shown in FIG. 4;
FIG. 6 is a top view of an oil structure according to another embodiment of the present invention;
FIG. 7 is a side view (right to left) of the oil structure shown in FIG. 6;
FIG. 8 is a top view of an oil structure according to yet another embodiment of the present invention;
fig. 9 is a side view (right to left) of the oil structure shown in fig. 8.
Reference numerals:
a compressor 100;
a housing 1; a high pressure chamber 11; an oil pool 111; a low pressure chamber 12;
a compression mechanism 2; a cylinder assembly 21; a cylinder 211; an exhaust outlet 2111;
a main bearing 22; a through hole 221;
a sub-bearing 23;
a crankshaft 24;
a piston 25;
a partition plate 26; an oil and gas mixing chamber 261;
a motor 3; a rotor 31; a stator 32;
an oil structure 4; a gas-oil separation chamber 400; an oil and gas inlet 401; a gas outlet 402; a cuff 4021; an oil outlet 403;
a main board 41; a first main board 411; a second main board 412; a main board body 413; an end plate 414; a baffle 42; a stopper 421;
a muffler 5; a sound deadening chamber 51.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present application is made based on the knowledge of the inventors of the following problems:
in the running process of the compressor, the friction and the heating of the compression mechanism are serious, and the refrigeration lubricating oil is required to lubricate and cool the compression mechanism, so that the running reliability of the compressor is improved. At the same time, however, the lubricating oil and the refrigerant have certain intersolubility, and the refrigerant discharged into the accommodating cavity by the compression mechanism is in a high-temperature and high-pressure state, and when the refrigerant is discharged out of the compressor by the accommodating cavity, part of the lubricating oil is taken out together, so that the lubricating oil quantity in the compressor is reduced to influence the lubrication and the cooling of the compression mechanism, and the lubricating oil discharged together with the refrigerant enters the refrigeration system together with the refrigerant, and forms an oil film in the condenser and the evaporator, so that the heat exchange performance of the refrigeration system is influenced.
In order to reduce the oil discharge amount of the compressor, an oil-gas separator is usually provided in the compressor to separate oil from gas mixture of high pressure discharged from the compression mechanism, the separated oil is returned to the oil pool, and the separated gas is discharged through the gas outlet of the compressor.
The oil-gas separation device in the related art is generally a rotary centrifugal oil-gas separation device, the oil-gas separation device needs a large oil-gas separation space to realize oil-gas separation, a cyclone oil-gas separation device is generally adopted for a compressor with a small oil-gas separation space, and the oil-gas separation device is generally arranged at one end of a compression mechanism, so that the axial length of the compressor is increased, the overall volume of the compressor is increased, and an oil return channel is required to be higher than an oil pool or a pressure difference exists to return oil. The structural design requirement is relatively high. In addition, the oil-gas separation device in the related art has poor oil-gas separation effect, large oil discharge amount of the compressor, unstable oil surface, and large exhaust resistance of the compressor.
Therefore, the present application proposes a compressor 100, the oil-gas separation effect of the oil component structure 4 of the compressor 100 is good, the oil discharge amount of the compressor 100 is low, the oil level is stable, and the exhaust resistance of the compressor 100 is small.
The compressor 100 according to the embodiment of the first aspect of the present invention will be described with reference to fig. 1 to 9, wherein the compressor 100 may be a vertical compressor 100 or a horizontal compressor 100, and the description below of the present application will be described with reference to the horizontal compressor 100 shown in fig. 1 to 3.
As shown in fig. 1 to 9, a compressor 100 according to an embodiment of the present invention includes: a housing 1, a compression mechanism 2 and an oil structure 4.
The housing 1 defines a receiving chamber, the receiving chamber has an oil pool 111, the housing 1 is provided with an air suction port and an air discharge port, the compression mechanism 2 is arranged in the receiving chamber, the compression mechanism 2 is provided with an air suction inlet and an air discharge outlet 2111, the air suction inlet is communicated with the air suction port, the air discharge outlet 2111 is communicated with the air discharge port, a low-pressure refrigerant outside the compressor 100 sequentially enters the compression chamber of the compression mechanism 2 through the air suction port and the air suction inlet, is compressed into a high-pressure refrigerant in the compression chamber, is discharged into the receiving chamber through the air discharge outlet 2111, and is discharged out of the compressor 100 through the air discharge port.
The oil structure 4 is arranged in the accommodating cavity and defines an oil-gas separation cavity 400 with the compression mechanism 2, the oil-gas separation cavity 400 is provided with an oil-gas inlet 401, an oil liquid outlet 403 facing the oil tank 111 and a gas outlet 402 facing away from the oil tank 111, the oil-gas inlet 401 is communicated with an exhaust outlet 2111, and one end, far away from the oil-gas inlet 401, of the oil structure 4 is provided with a stop portion 421.
Specifically, the oil-gas separation chamber 400 has an oil-gas inlet 401, a gas outlet 402 and an oil outlet 403, the lower part of the receiving chamber is provided with the oil sump 111, the gas outlet 402 faces the upper part of the receiving chamber, the oil outlet 403 faces the oil sump 111, the high-pressure oil-gas mixture discharged from the exhaust outlet 2111 of the compression mechanism 2 enters the oil-gas separation chamber 400 through the oil-gas inlet 401, due to different mass of the gas and the oil, the inertia of the gas is smaller than that of the oil, the gas moves in the oil-gas separation chamber 400 after entering the oil-gas separation chamber 400, the distance of the oil moves in the oil-gas separation chamber 400 after entering the oil-gas separation chamber 400 is shorter, the gas in the oil-gas mixture is discharged to the upper part of the receiving chamber through the gas outlet 402, the oil in the oil-gas mixture moves to the position of the stop 421 under the action of inertia, collides with the stop 421, the oil adheres to the surface of the stop 421, flows to the outlet 403 along the surface of the stop 421, and flows into the oil sump 403 after entering the oil-gas separation chamber 400, and the oil-gas separation chamber 111 is separated by flowing into the oil sump 111.
According to the compressor 100 of the embodiment of the invention, the oil structure 4 is simple, the cost is low, and the oil-gas separation effect is good, so that the oil discharge amount of the compressor 100 is low, the oil level is stable, and the exhaust resistance of the compressor 100 is small.
In one embodiment of the present invention, the compression mechanism 2 includes a cylinder assembly 21 and two bearing portions disposed at two axial ends of the cylinder assembly 21, one end of the oil component structure 4 away from the stop portion 421 is in sealing engagement with one of the two bearing portions, a through hole 221 is disposed on the bearing portion engaged therewith, and the exhaust outlet 2111 communicates with the oil gas inlet 401 through the through hole 221. The two bearing parts are a main bearing 22 and a secondary bearing 23 respectively, one end, far away from the stop part 421, of the oil structure 4 can be in sealing fit with the main bearing 22, or one end, far away from the stop part 421, of the oil structure 4 is in sealing fit with the secondary bearing 23, when one end, far away from the stop part 421, of the oil structure 4 is in sealing fit with the main bearing 22, the main bearing 22 is provided with a through hole 221 for communicating the exhaust outlet 2111 with the oil gas inlet 401, and when one end, far away from the stop part 421, of the oil structure 4 is in sealing fit with the secondary bearing 23, the secondary bearing 23 is provided with a through hole 221 for communicating the exhaust outlet 2111 with the oil gas inlet 401. The exhaust outlet 2111 and the oil and gas inlet 401 communicate through the through hole 221 provided in the bearing portion, so that the fitting between the oil structure 4 and the compression mechanism 2 is simple, and the structure and the assembling process of the compressor 100 can be simplified.
The compression mechanism 2 includes a cylinder assembly 21, a main bearing 22 and a sub bearing 23 provided at both axial ends of the cylinder assembly 21, as shown in fig. 1 to 3, the main bearing 22 may be provided at the right side of the cylinder assembly 21, the sub bearing 23 may be provided at the left side of the cylinder assembly 21, the cylinder assembly 21 includes at least one cylinder 211, that is, the cylinder assembly 21 may include only one cylinder 211, when the compressor 100 is a single-cylinder type compressor 100, of course, the cylinder assembly 21 may include a plurality of cylinders 211, for example, two cylinders 211, three cylinders 211, or more cylinders 211, and when the cylinder assembly 21 includes a plurality of cylinders 211, the compressor 100 is a multi-cylinder type compressor 100. Each cylinder 211 defines a cylinder chamber therein, the cylinder chamber having an intake air inlet and an exhaust air outlet 2111, low pressure gas entering the cylinder chamber from the intake air inlet and being compressed into high pressure gas within the cylinder chamber, the high pressure gas exiting the cylinder chamber from the exhaust air outlet 2111, wherein the intake air inlet of at least one cylinder 211 is in communication with the intake air inlet and the oil gas inlet 401 is in communication with the exhaust air outlet 2111 of at least one cylinder 211.
The plurality of cylinders 211 of the cylinder assembly 21 may independently operate to compress the refrigerant, and the plurality of cylinders 211 of the cylinder assembly 21 may form multi-stage compression. When the plurality of cylinders 211 each independently operate, the suction inlet of each cylinder 211 may each communicate with the suction port, and the exhaust outlet 2111 of each cylinder 211 may each communicate with the oil and gas inlet 401. The cylinder assembly 21 of the compressor 100 shown in fig. 1-2, for example, includes two cylinders 211, and the two cylinders 211 are independently operated, respectively, and the two cylinders 211 are disposed in the left-right direction, and the exhaust outlet 2111 of the cylinder 211 adjacent to the sub-bearing 23 is provided on the sub-bearing 23, and the high pressure gas compressed in the cylinder 211 is discharged into the oil-gas separation chamber 400 through the exhaust outlet 2111 on the sub-bearing 23, and the exhaust outlet 2111 of the cylinder 211 adjacent to the main bearing 22 is provided on the main bearing 22, and the high pressure gas compressed in the cylinder 211 is discharged into the oil-gas separation chamber 400 through the exhaust outlet 2111 on the main bearing 22.
When the plurality of cylinders 211 of the cylinder assembly 21 form multi-stage compression (not shown), the suction inlet of the cylinder 211 of the lowest stage communicates with the suction port, the discharge outlet 2111 of the cylinder 211 of the highest stage communicates with the oil gas inlet 401, the suction inlet of the cylinder 211 located between the cylinder 211 of the lowest stage and the cylinder 211 of the highest stage communicates with the discharge outlet 2111 of the cylinder 211 of the previous stage, and the discharge outlet 2111 of the cylinder 211 located between the cylinder 211 of the lowest stage and the cylinder 211 of the highest stage communicates with the suction inlet of the cylinder 211 of the next stage, thereby forming multi-stage compression, and gradually increasing the pressure of gas.
As shown in fig. 1-2, the housing chamber is further provided with a motor 3, the motor 3 includes a rotor 31 and a stator 32, the rotor 31 may be provided inside or outside the stator 32, the motor 3 is an inner rotor motor 3 when the rotor 31 is provided inside the stator 32, the motor 3 is an outer rotor motor 3 when the rotor 31 is provided outside the stator 32, for example, the motor 3 shown in fig. 1-2 is an inner rotor motor 3. The cylinder assembly 21 further comprises a crankshaft 24, the left end of the crankshaft 24 sequentially penetrates through the main bearing 22, the cylinder assembly 21 and the auxiliary bearing 23 from right to left, the crankshaft 24 is provided with an eccentric part, the eccentric part is positioned in a cylinder cavity, a piston 25 is sleeved on the eccentric part, and the right end of the crankshaft 24 is matched with the rotor 31. When the motor 3 works, the rotor 31 drives the crankshaft 24 to rotate around the rotation center line, so that the piston 25 sleeved on the eccentric part of the crankshaft 24 is driven to roll along the inner wall of the cylinder cavity to realize compression of gas.
In one embodiment of the present invention, the oil and gas separation chamber 400 is formed in an arc ring shape surrounding a part of the outer circumferential wall of the compression mechanism 2, preferably, the center angle of the oil and gas separation chamber 400 is not more than 180 °, so that the oil structure 4 is covered on the upper half of the outer circumferential wall of the compression mechanism 2, preventing the oil structure 4 from contacting with the lubricating oil in the oil sump 111, and reducing the oil and gas separation effect of the oil structure 4.
Further, the oil-gas inlet 401 is disposed on the axial end wall of the oil-gas separation chamber 400, so that the high-pressure oil-gas mixture discharged from the exhaust outlet 2111 of the cylinder 211 automatically enters the oil-gas separation chamber 400 through the oil-gas inlet 401 along the axial direction under the action of pressure difference, the air inlet process of the oil structure 4 is smooth, and the air inlet efficiency is high.
The gas outlet 402 is provided on a radial side wall of the oil-gas separation chamber 400, and the oil outlet 403 is provided on a circumferential end wall of the oil-gas separation chamber 400. Since the gas itself has a tendency to diffuse upward, the gas outlet 402 is provided on the radial sidewall of the oil and gas separation chamber, so that the gas in the oil and gas separation chamber 400 is discharged to the upper portion of the receiving chamber through the gas outlet 402. Meanwhile, when the oil collides with the stop portion 421 and adheres to the surface of the stop portion 421, the oil slides downwards along the surface of the stop portion 421 under the action of gravity, and the oil-gas separation cavity 400 is formed into an arc ring shape surrounding the outer peripheral wall of the compression mechanism 2, so that the movement track of the oil is also an arc-shaped track, and the oil outlet 403 is arranged at the circumferential end of the oil-gas separation cavity 400, so that the oil is discharged conveniently.
It will be appreciated that most of the oil in the oil-gas separation chamber 400 will collide with the stop portion 421 and adhere to the stop portion 421, and flow along the stop portion 421 to the oil outlet 403, and a small portion of the oil will collide with the inner sidewall of the oil-gas separation chamber 400 and the outer wall of the compression mechanism 2 and adhere to the inner sidewall of the oil-gas separation chamber 400 and the outer wall of the compression mechanism 2, and flow along the inner sidewall of the oil-gas separation chamber 400 and the outer wall of the compression mechanism 2 to the oil outlet 403 under the action of gravity, and finally flow into the oil pool 111 through the oil outlet 403.
In one embodiment of the present invention, the oil structure 4 includes an arcuate main plate 41 extending in the axial direction of the compression mechanism 2 and an arcuate baffle plate 42 extending inward in the radial direction of the compression mechanism 2 provided at one end of the main plate 41, the oil structure 4 is covered on the outer peripheral wall of the compression mechanism 2, the other end of the main plate 41 and the baffle plate 42 are each in sealing engagement with the compression mechanism 2 to define the oil-gas separation chamber 400, the inner surface of the baffle plate 42 forms a stopper 421, an oil-gas inlet 401 is defined between the end of the main plate 41 remote from the baffle plate 42 and the compression mechanism 2, an oil outlet 403 is defined between the circumferential end of the main plate 41 and the compression mechanism 2, and the gas outlet 402 is formed on the main plate 41. The oil component structure 4 is simple and has low production and manufacturing cost. For example, in the example shown in fig. 1 to 9, the main plate 41 is formed in an arc-like structure extending in the left-right direction, the baffle plate 42 is provided at the left end of the main plate 41, the oil structure 4 is covered on the outer peripheral wall of the compression mechanism 2, and the right end of the main plate 41 is in sealing engagement with the main bearing 22, the baffle plate 42 is in sealing engagement with the sub-bearing 23 to define the oil-gas separation chamber 400, and the inner surface of the baffle plate 42 forms the stopper 421.
As shown in fig. 4 to 9, the gas outlet 402 may include a plurality of gas outlets 402 uniformly distributed on the main plate 41, thereby making the oil-gas separation effect of the oil structure 4 better. Preferably, the ratio of the total area of the gas outlets 402 to the area of the outer peripheral wall of the oil structure 4 is less than 0.3, whereby the oil-gas separation effect of the oil structure 4 can be made better.
In an alternative embodiment of the present invention, as shown in fig. 4-7, the gas outlet 402 is formed in a circular shape, which is convenient for processing and for gas evacuation.
In another alternative embodiment of the present invention, as shown in fig. 8-9, the gas outlet 402 is formed in an "O" shape, and by forming the gas outlet 402 in an "O" shape, not only processing but also gas evacuation is facilitated.
Of course, the present application is not limited thereto, and the gas outlet 402 may be elliptical, polygonal (e.g., triangular, quadrangular, etc.), or irregular.
Preferably, as shown in fig. 6-9, the edge of the gas outlet 402 is provided with an annular flange 4021 extending inward along the radial direction of the oil-gas separation chamber 400, so that the collision area of the oil-gas mixture in the oil-gas separation chamber 400 can be increased, the oil-gas separation effect is better, and the oil is prevented from being discharged from the oil-gas separation chamber 400 through the gas outlet 402 without colliding with the inner wall of the oil-gas separation chamber 400.
Further, the ratio of the length of the flange 4021 in the radial direction of the oil-gas separation chamber 400 to the length of the baffle plate 42 in the radial direction of the oil-gas separation chamber 400 is 0.2 to 0.5, i.e., the length of the flange 4021 in the radial direction of the oil-gas separation chamber 400 is 0.2 to 0.5 times the length of the baffle plate 42 in the radial direction of the oil-gas separation chamber 400. Thereby making the oil-gas separation effect of the oil structure 4 better.
Alternatively, as shown in fig. 3 to 4, 6 and 8, the main plate 41 includes a first main plate 411 and a second main plate 412 connected to each other, the gas outlet 402 is provided on the second main plate 412, and the baffle 42 is provided at an end of the second main plate 412, and an end of the first main plate 411 is in sealing engagement with the main bearing 22. Further, the first main plate 411 expands outward in the radial direction of the compression mechanism 2 in the direction from the sub-bearing 23 toward the main bearing 22. Thereby making the fit between the oil structure 4 and the main bearing 22 more flexible and convenient.
Alternatively, as shown in fig. 5, 7 and 9, the main plate 41 includes a main plate body 413 and end plates 414 provided at both circumferential ends of the main plate body 413 and extending inward in the radial direction of the compression mechanism 2, the gas outlet 402 is provided on the main plate body 413, and the oil outlet 403 is defined between the end plates 414 and the compression mechanism 2. By arranging the end plate 414, the area of the oil outlet 403 can be reduced on the premise of not reducing the volume of the oil-gas separation cavity 400, so that the gas in the oil-gas separation cavity 400 can be better prevented from flowing out from the oil outlet 403 and the oil together, and the oil-gas separation effect of the oil structure 4 is better.
In one embodiment of the present invention, the compressor 100 further includes a muffler 5, the muffler 5 having a muffler chamber 51 and an inlet and an outlet communicating with the muffler chamber 51, the inlet communicating with the exhaust outlet 2111 and the outlet communicating with the oil gas inlet 401, whereby noise during operation of the compressor 100 can be reduced, thereby improving the operation quality of the compressor 100.
In one embodiment of the present invention, as shown in fig. 1 to 9, the compression mechanism 2 is provided in the accommodating chamber to partition the accommodating chamber into a high-pressure chamber 11 and a low-pressure chamber 12, the low-pressure chamber 12 being in communication with the suction port, and the high-pressure chamber 11 being in communication with the discharge port. The low-pressure gas outside the compressor 100 is sucked into the low-pressure chamber 12 through the suction port, and the low-pressure gas is compressed into high-pressure gas by the compression mechanism 2 and then discharged into the high-pressure chamber 11, and finally the high-pressure gas discharged into the high-pressure chamber 11 is discharged out of the compressor 100 through the discharge port. The oil structure 4 is arranged in the high-pressure cavity 11 and defines an oil-gas separation cavity 400 with the compression mechanism 2, the oil tank 111 is arranged at the lower part of the high-pressure cavity 11, the gas outlet 402 faces the upper part of the high-pressure cavity 11, the oil outlet 403 faces the oil tank 111, the high-pressure oil-gas mixture discharged from the exhaust outlet 2111 of the cylinder 211 enters the oil-gas separation cavity 400 through the oil-gas inlet 401 for oil-gas separation, separated oil flows to the oil tank 111 through the oil outlet 403, separated gas is discharged to the upper part of the high-pressure cavity 11 through the gas outlet 402, and finally discharged out of the compressor through the exhaust port on the shell 1.
In a specific example, the main bearing 22 is in sealing engagement with the inner wall of the housing 1 to divide the accommodation chamber into a high pressure chamber 11 and a low pressure chamber 12, a muffler 5 is provided on a side of the main bearing 22 adjacent to the low pressure chamber 12, the muffler 5 has a muffler chamber 51, and an inlet and an outlet communicating with the muffler chamber 51, the inlet communicates with an exhaust outlet 2111 of at least one cylinder 211, and the outlet communicates with the oil and gas inlet 401 through a through hole 221 provided in the main bearing 22. Specifically, the low-pressure gas enters the cylinder chamber from the suction inlet of the cylinder 211 and is compressed into high-pressure gas in the cylinder chamber, the high-pressure gas sequentially passes through the exhaust outlet 2111 of the cylinder chamber and the inlet of the silencing chamber 51 to enter the silencing chamber 51, and the high-pressure gas sequentially passes through the outlet of the silencing chamber 51 and the through hole 221 on the main bearing 22 to enter the oil-gas separation chamber 400 after being silenced in the silencing chamber 51, so as to perform oil-gas separation. The oil structure 4 and the compression mechanism 2 are conveniently matched, so that the internal structure of the compressor 100 is greatly simplified, and the production and the manufacture of the compressor 100 are convenient.
In another specific example, as shown in fig. 1 and 2, the compression mechanism 2 further includes a partition plate 26, the partition plate 26 cooperates with the casing 1 to partition the accommodating chamber into a high pressure chamber 11 and a low pressure chamber 12, the cylinder assembly 21, the main bearing 22 and the sub-bearing 23 are all disposed in the high pressure chamber 11, the main bearing 22 is disposed at one end of the cylinder assembly 21 adjacent to the partition plate 26, and the motor 3 is disposed in the low pressure chamber 12. By dividing the accommodation chamber into the high pressure chamber 11 and the low pressure chamber 12 by the partition plate 26, it is possible to avoid deformation of the main bearing 22 due to a pressure difference, and to avoid deformation of the cylinder assembly 21 due to deformation of the main bearing 22, thereby improving the reliability of operation of the compressor 100. Further, an oil-gas mixing chamber 261 is defined between the main bearing 22 and the partition plate 26, the oil-gas mixing chamber 261 communicates with an exhaust outlet 2111 of at least one cylinder 211, and the oil-gas mixing chamber 261 communicates with an oil-gas inlet 401 through a through hole 221 provided in the main bearing 22.
Specifically, the low-pressure gas enters the cylinder chamber from the suction inlet of the cylinder 211 and is compressed into high-pressure gas in the cylinder chamber, the high-pressure gas is discharged into the oil-gas mixing chamber 261 through the exhaust outlet 2111, and the high-pressure gas enters the oil-gas mixing chamber 261 and then sequentially enters the oil-gas separation chamber 400 through the through hole 221 and the oil-gas inlet 401 provided on the main bearing 22 for oil-gas separation. The oil structure 4 and the compression mechanism 2 are conveniently matched, so that the internal structure of the compressor 100 is greatly simplified, and the production and the manufacture of the compressor 100 are convenient.
Further, a muffler 5 is provided on a side of the main bearing 22 adjacent to the partition plate 26, the muffler 5 having a muffler chamber 51, and an inlet and an outlet communicating with the muffler chamber 51, the inlet communicating with the exhaust outlet 2111 of the at least one cylinder 211, and the outlet communicating with the oil-gas mixing chamber 261. That is, the high-pressure gas discharged from the exhaust outlet 2111 of the cylinder 211 enters the muffler 5 to be muffled, then enters the oil-gas mixing chamber 261, and finally enters the oil-gas separation chamber 400 from the oil-gas mixing chamber 261. By providing the muffler 5, exhaust noise of the compressor 100 can be reduced, thereby improving the operation quality of the compressor 100.
In the specific example shown in fig. 1-2, the cylinder assembly 21 of the compressor 100 includes two cylinders 211, and the two cylinders 211 operate independently, respectively, the two cylinders 211 are disposed in the left-right direction, the exhaust outlet 2111 of the cylinder 211 adjacent to the auxiliary bearing 23 is disposed on the auxiliary bearing 23, the exhaust outlet 2111 of the cylinder 211 adjacent to the main bearing 22 is disposed on the main bearing 22, the muffler 5 is disposed on the side of the main bearing 22 adjacent to the partition plate 26, the muffler 5 is also disposed on the side of the auxiliary bearing 23 remote from the partition plate 26, the outlet of the muffler 5 on the right side is in communication with the oil-gas mixing chamber 261, the high-pressure gas compressed in the right cylinder 211 is discharged into the muffler 5 on the right through the exhaust outlet 2111 on the main bearing 22 to be muffled, the high-pressure gas compressed in the left cylinder 211 is discharged into the muffler 5 on the left side through the exhaust outlet 2111 on the auxiliary bearing 23, the muffler 5 on the left side is communicated with the oil-gas mixing chamber 261 or the muffler chamber 51 on the right side of the muffler 5 through a communication passage (not shown), thereby the oil-gas mixing chamber 21 is communicated with the oil-gas mixing chamber, and the oil-gas mixing chamber is discharged from the compressor 100 is further, thereby the high-pressure gas mixing structure is discharged into the exhaust gas mixing chamber 1 is discharged from the compressor 100. In addition, the oil structure 4 and the compression mechanism 2 of the compressor 100 of the present embodiment are conveniently matched, thereby greatly simplifying the internal structure of the compressor 100 and facilitating the production and manufacture of the compressor 100.
A refrigeration system according to an embodiment of the second aspect of the present invention includes a compressor 100 according to an embodiment of the first aspect of the present invention described above.
According to the refrigerating system of the embodiment of the invention, by arranging the compressor 100 according to the embodiment of the first aspect of the invention, the refrigerating system has all the advantages of the compressor 100, and the working performance of the refrigerating system is good.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A compressor, comprising:
a housing defining a containment cavity therein, the containment cavity having an oil sump therein;
a compression mechanism having a suction inlet and a discharge outlet;
the oil separation cavity is provided with an oil inlet, an oil outlet facing the oil tank and a gas outlet facing away from the oil tank, the oil inlet is communicated with the exhaust outlet, and one end of the oil separation structure, which is far away from the oil inlet, is provided with a stop part;
the oil content structure includes along the axially extending arciform mainboard of compressing mechanism and locates the mainboard one end along compressing mechanism's radial inwards extending arciform baffle, the oil content structure dustcoat is in compressing mechanism's periphery wall is last, the other end of mainboard with the baffle all with compressing mechanism seal fit is in order to limit up the oil gas separation chamber, the internal surface of baffle forms the backstop portion, the mainboard keep away from the baffle one end with define between the compressing mechanism the oil gas import, the circumference tip of mainboard with define between the compressing mechanism the fluid export, the gas export forms on the mainboard.
2. The compressor of claim 1, wherein the oil-gas separation chamber is formed in an arcuate ring shape surrounding a part of the outer circumferential wall of the compression mechanism.
3. The compressor of claim 1, wherein the oil and gas inlet is provided on an axial end wall of the oil and gas separation chamber, the gas outlet is provided on a radial side wall of the oil and gas separation chamber, and the oil outlet is provided on a circumferential end wall of the oil and gas separation chamber.
4. The compressor of claim 1, wherein the main plate includes a main plate body and end plates disposed at both circumferential ends of the main plate body and extending inward in a radial direction of the compression mechanism, the gas outlet is disposed on the main plate body, and the oil outlet is defined between the end plates and the compression mechanism.
5. The compressor of claim 1, wherein an edge of the gas outlet is provided with an annular flange extending radially inward of the oil and gas separation chamber.
6. The compressor of claim 5, wherein a ratio of a length of the flange in a radial direction of the oil-gas separation chamber to a length of the baffle in the radial direction of the oil-gas separation chamber is 0.2 to 0.5.
7. The compressor according to any one of claims 1 to 6, wherein the compression mechanism comprises a cylinder assembly and two bearing portions provided at both axial ends of the cylinder assembly, one end of the oil component structure away from the stopper portion is in sealing engagement with one of the two bearing portions, a through hole is provided in the bearing portion engaged with one end of the oil component structure away from the stopper portion, and the exhaust outlet communicates with the oil-gas inlet through the through hole.
8. The compressor of claim 1, further comprising a muffler having a muffler chamber and an inlet and an outlet in communication with the muffler chamber, the inlet in communication with the exhaust outlet and the outlet in communication with the oil and gas inlet.
9. A refrigeration system comprising a compressor according to any one of claims 1-8.
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| CN201710919618.1A CN109595171B (en) | 2017-09-30 | 2017-09-30 | Compressor and refrigerating system with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710919618.1A CN109595171B (en) | 2017-09-30 | 2017-09-30 | Compressor and refrigerating system with same |
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| CN109595171A CN109595171A (en) | 2019-04-09 |
| CN109595171B true CN109595171B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114412791B (en) * | 2021-12-24 | 2023-01-10 | 珠海格力电器股份有限公司 | Oil-gas separation structure, compressor and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244680A (en) * | 1978-08-19 | 1981-01-13 | Diesel Kiki Co., Ltd. | Rotary vane compressor with oil separating means |
| JPS5614894A (en) * | 1979-07-13 | 1981-02-13 | Mitsubishi Electric Corp | Rotary compressor |
| JPS57137681A (en) * | 1981-02-18 | 1982-08-25 | Daikin Ind Ltd | Reversible rotary compressor |
| CN107061272A (en) * | 2015-10-27 | 2017-08-18 | 三菱电机株式会社 | Rotary compressor |
| CN207246020U (en) * | 2017-09-30 | 2018-04-17 | 广东美芝制冷设备有限公司 | Compressor and there is its refrigeration system |
-
2017
- 2017-09-30 CN CN201710919618.1A patent/CN109595171B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244680A (en) * | 1978-08-19 | 1981-01-13 | Diesel Kiki Co., Ltd. | Rotary vane compressor with oil separating means |
| JPS5614894A (en) * | 1979-07-13 | 1981-02-13 | Mitsubishi Electric Corp | Rotary compressor |
| JPS57137681A (en) * | 1981-02-18 | 1982-08-25 | Daikin Ind Ltd | Reversible rotary compressor |
| CN107061272A (en) * | 2015-10-27 | 2017-08-18 | 三菱电机株式会社 | Rotary compressor |
| CN207246020U (en) * | 2017-09-30 | 2018-04-17 | 广东美芝制冷设备有限公司 | Compressor and there is its refrigeration system |
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