CN110242542B - Compressor exhaust mechanism and compressor thereof - Google Patents
Compressor exhaust mechanism and compressor thereof Download PDFInfo
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- CN110242542B CN110242542B CN201910573886.1A CN201910573886A CN110242542B CN 110242542 B CN110242542 B CN 110242542B CN 201910573886 A CN201910573886 A CN 201910573886A CN 110242542 B CN110242542 B CN 110242542B
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- oil
- compressor
- oil separation
- cavity
- exhaust
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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
- F04B39/02—Lubrication
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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
- F04B39/02—Lubrication
- F04B39/0207—Lubrication with lubrication control systems
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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
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
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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
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
Abstract
The invention relates to the technical field of compressor equipment, and discloses a compressor exhaust mechanism and a compressor thereof, wherein the compressor exhaust machine comprises: the exhaust cavity, the connecting pipe, the oil separation cavity and the oil pool are sequentially connected; the connecting pipe is connected with the oil separation chamber along the tangential direction of the oil separation chamber; the top in oil separating chamber is equipped with the blast pipe, the bottom in oil separating chamber is equipped with the oil drain port, oil drain port department is equipped with the oil extraction subassembly, the oil bath passes through the oil drain port with oil separating chamber intercommunication. According to the compressor exhauster provided by the invention, the oil separation cavity is arranged, the lubricating oil in the exhausted air is separated by using a centrifugal effect in the operation process, and when the compressor stops operating, the oil discharge assembly is opened by using the pressure difference formed by the pressure change at the two sides of the oil separation cavity, so that the lubricating oil existing in the oil separation cavity returns to the oil pool in the compressor shell, the internal oil return of the compressor is realized, the oil content of the system is reduced, and the heat exchange efficiency of the system is improved.
Description
Technical Field
The invention relates to the technical field of compressor equipment, in particular to a compressor exhaust mechanism and a compressor thereof.
Background
Lubricating oil is an effective measure for relieving friction between a piston and a cylinder of the linear compressor, improving the sealing effect of a gap and improving the refrigeration performance of the linear compressor.
However, there are two main problems with oil lubricated refrigeration systems: on one hand, after lubricating oil in the compressor enters the refrigeration/heat pump system along with the exhaust gas of the compressor, the heat exchange performance of the system is influenced. On the other hand, when the flow of the external system is complex, the oil return problem of the lubricating oil brings great difficulty to the system design in order to ensure the safe operation of the compressor.
Therefore, the oil separation and oil return technology of the compressor is an important research content for the technical development of the refrigeration compressor. Compared with the prior art that the independent oil separation device and the oil return pipeline are arranged at the outlet of the compressor of the system, the built-in oil separation device of the compressor body is more beneficial to improving the oil separation capacity and the oil return performance and simplifying the refrigeration system.
Disclosure of Invention
Technical problem to be solved
In view of the technical defects and application requirements, the application provides a compressor exhaust mechanism and a compressor thereof, and aims to simplify the exhaust mechanism, improve oil separation and oil return performance and improve system heat exchange efficiency.
(II) technical scheme
In order to solve the above problems, the present invention provides a compressor discharge mechanism, including: the exhaust cavity, the connecting pipe, the oil separation cavity and the oil pool are sequentially connected; the connecting pipe is connected with the oil separation chamber along the tangential direction of the oil separation chamber; the top in oil separating chamber is equipped with the blast pipe, the bottom in oil separating chamber is equipped with the oil drain port, oil drain port department is equipped with the oil extraction subassembly, the oil bath passes through the oil drain port with oil separating chamber intercommunication.
Further, the exhaust chamber includes: an inner chamber and an outer chamber; the inner cavity is communicated with the outer cavity through an exhaust hole, the inner cavity is connected with a cylinder of a compressor, and the outer cavity is communicated with the oil separation cavity through the connecting pipe.
Further, an exhaust valve and a first elastic piece are arranged in the inner cavity; the exhaust valve covers the end of the cylinder under the pre-pressing action of the first elastic piece.
Furthermore, the oil separation cavity is a cylindrical tubular cavity, an air inlet is formed in one side of the oil separation cavity, an air outlet is formed in the top of the oil separation cavity, and the exhaust pipe is inserted into the air outlet of the oil separation cavity.
Further, the oil drain assembly includes: the valve core, the second elastic piece and the plug; the valve core penetrates through the oil drain port and is movably arranged in the oil drain port; the first end of the valve core is abutted against the oil outlet, and the second end of the valve core is connected with the plug; the second elastic piece is sleeved on the valve core, the first end of the second elastic piece is abutted with the oil separation cavity, and the second end of the second elastic piece is abutted with the plug.
Further, the valve cartridge includes: a valve head and a valve stem; one end of the valve rod is connected with the valve head, and the other end of the valve rod is connected with the plug; the valve head is a circular table type valve head, and the valve rod is a cylindrical valve rod.
Further, the valve core realizes dredging or sealing according to the pressure difference of two sides of the oil separation cavity and the pre-pressure action of the second elastic piece.
Further, still include: a seal ring; the exhaust cavity is of a flange structure and is connected with a cylinder of the compressor through the sealing ring.
Further, still include: the exhaust cavity, the connecting pipe and the oil separation cavity are all arranged in the shell, and the exhaust pipe penetrates through the shell to be communicated with the outside air.
In order to solve the above problems, the present invention provides a compressor, which includes the above compressor discharge mechanism.
(III) advantageous effects
The invention provides a compressor exhaust mechanism and a compressor thereof.A lubricating oil in exhaust gas is separated by using a centrifugal effect in the operation process through arranging an oil separation cavity, and when the compressor stops operating, an oil discharge assembly is opened by using a pressure difference formed by pressure change at two sides of the oil separation cavity, so that the lubricating oil existing in the oil separation cavity returns to an oil pool in a compressor shell, thereby realizing internal oil return of the compressor, reducing the oil content of a system and improving the heat exchange efficiency of the system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a front view of a compressor discharge mechanism provided by an embodiment of the present invention;
FIG. 2 is a top view of a compressor discharge mechanism provided by an embodiment of the present invention;
FIG. 3 is a schematic view of a compressor discharge mechanism in operation of a compressor according to an embodiment of the present invention;
FIG. 4 is a schematic view of a compressor discharge mechanism with a compressor stopped according to an embodiment of the present invention;
wherein, 1: an exhaust chamber; 2: an exhaust valve; 3: a connecting pipe; 4: an oil separation chamber; 5: an exhaust pipe; 6: a valve core; 7: a second elastic member; 8: a plug; 9: a housing; 10: a first elastic member; 11: a cylinder; 12: an exhaust hole; 13: a seal ring; 14: an air inlet; 15: and an oil drain port.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a compressor air exhausting mechanism, as shown in fig. 1 and 2, the compressor air exhausting mechanism includes: the oil separation device comprises an exhaust cavity 1, a connecting pipe 3, an oil separation cavity 4 and an oil pool which are connected in sequence. The connection pipe 3 is connected to the oil separation chamber 4 in the tangential direction of the oil separation chamber 4. The top of the oil separation cavity 4 is provided with an exhaust pipe 5, the bottom of the oil separation cavity 4 is provided with an oil outlet 15, an oil discharge assembly is arranged at the oil outlet 15, and the oil pool is communicated with the oil separation cavity 4 through the oil outlet 15.
The oil separation cavity 4 is a cylindrical tubular cavity, an air inlet 14 is formed in one side of the oil separation cavity 4, the air inlet 14 is connected through a connecting pipe 3, an air outlet is formed in the top of the oil separation cavity 4, and the exhaust pipe 5 penetrates through the air outlet of the oil separation cavity 4.
As shown in fig. 3, in the operation process of the compressor, the compressed working medium enters the exhaust chamber 1 from the cylinder 11 of the compressor, then enters the oil separation chamber 4 from the connecting pipe 3 along the tangential direction of the oil separation chamber 4, under the action of centrifugal force, oil drops in the working medium collide in the oil separation chamber 4 and flow to the bottom along the inner wall of the oil separation chamber 4, and gas in the working medium is exhausted from the exhaust pipe 5. The oil discharge assembly is in a closed state under the action of pressure difference, and separated lubricating oil is stored at the bottom of the oil separation chamber 4.
As shown in fig. 4, when the compressor stops operating, due to the communication of the external system of the compressor, the internal and external pressures of the oil separation chamber 4 are balanced to be relatively close pressures, the external pressure of the oil separation chamber 4 increases and the internal pressure decreases, so that the oil discharge assembly is opened, and the lubricating oil at the bottom of the oil separation chamber 4 flows out of the oil discharge port 15 and enters the oil sump.
The embodiment of the invention provides a compressor exhauster, which is characterized in that an oil separation cavity is arranged, lubricating oil in exhausted air is separated by utilizing a centrifugal effect in the operation process, and when the compressor stops operating, an oil discharge assembly is opened by utilizing the pressure change at two sides of the oil separation cavity, so that the lubricating oil existing in the oil separation cavity returns to an oil pool in a compressor shell, the internal oil return of the compressor is realized, the oil content of a system is reduced, and the heat exchange efficiency of the system is improved.
In one embodiment according to the present invention, as shown in fig. 1 and 2, the exhaust chamber 1 is a double-layered chamber structure including: an inner chamber and an outer chamber. The inner cavity is communicated with the outer cavity through an exhaust hole 12, the inner cavity is connected with a cylinder 11 of the compressor, and the outer cavity is communicated with the oil separation cavity 4 through a connecting pipe 3. Wherein, the inner cavity is provided with an exhaust valve 2 and a first elastic element 10. The exhaust valve 2 covers the end of the cylinder 11 under the pre-compression action of the first elastic member 10.
In this embodiment, the method further includes: a housing 9. The exhaust cavity 1, the connecting pipe 3 and the oil separation cavity 4 are all arranged in the shell 9, and the exhaust pipe 5 penetrates through the shell 9 to be communicated with the outside air. The gas discharge pipe 5 is inserted from the upper end of the oil separation chamber 4 to a certain depth. Wherein, compressor exhaust mechanism still includes: and a seal ring 13. The exhaust cavity 1 is of a flange structure and is connected with a cylinder 11 of the compressor through a sealing ring 13.
As shown in figure 3, in the running process of the compressor, the exhaust valve 2 is opened under the action of pressure, and the compressed working medium firstly enters the inner cavity from the cylinder 11 of the compressor and then enters the outer cavity from the inner cavity through the exhaust hole 12. As shown in fig. 4, when the compressor is closed, the exhaust valve 2 covers the end of the cylinder 11 under the action of the first elastic element 10, and the inner cavity is isolated from the cylinder 11.
Based on the above embodiments, in a preferred embodiment, as shown in fig. 1 and 2, the oil discharge assembly includes: a valve core 6, a second elastic element 7 and a plug 8. The valve core 6 passes through the oil drain port 15 and is movably disposed in the oil drain port 15. The first end of the valve core 6 is abutted against the oil drain port 15, and the second end of the valve core 6 is connected with the plug 8. The second elastic member 7 is sleeved on the valve core 6, a first end of the second elastic member 7 is abutted with the oil separation chamber 4, and a second end of the second elastic member 7 is abutted with the plug 8.
Wherein, the valve core 6 includes: a valve head and a valve stem; one end of the valve rod 6 is connected with the valve head, and the other end of the valve rod is connected with the plug; the valve head is a circular table type valve head, and the valve rod is a cylindrical valve rod. The valve core 6 realizes dredging or sealing under the action of the pressure difference between the two sides of the oil separation chamber 4 and the pre-pressure of the second elastic element 7.
As shown in fig. 3, in the operation process of the compressor, the compressed working medium enters the exhaust chamber 1 from the cylinder 11 of the compressor, then enters the oil separation chamber 4 from the connecting pipe 3 along the tangential direction of the oil separation chamber 4, under the action of centrifugal force, oil drops in the working medium collide in the oil separation chamber 4 and flow to the bottom along the inner wall of the oil separation chamber 4, and gas in the working medium is exhausted from the exhaust pipe 5. The gas pressure of the oil separation chamber 4 is the discharge pressure of the compressor, the gas pressure in the shell 9 is the suction pressure of the compressor, the valve core 6 at the bottom of the oil separation chamber 4 is in a closed state under the action of the pre-pressure of the second elastic piece 7 and the suction-discharge pressure difference of the compressor, and the separated lubricating oil is stored at the bottom of the oil separation chamber 4.
As shown in fig. 4, when the compressor stops operating, the suction pressure in the casing 9 and the discharge pressure in the oil separation chamber 4 are balanced to be a balanced pressure close to each other, the external pressure of the oil separation chamber 4 increases and the internal pressure decreases, so that the valve element 6 moves upward, the oil discharge port 15 opens, and the lubricating oil at the bottom of the oil separation chamber 4 flows from the oil discharge port 15 to the oil sump in the casing 9, thereby achieving internal oil return of the compressor.
The embodiment of the invention provides a compressor exhauster, which is characterized in that an oil separation cavity is arranged, lubricating oil in exhausted air is separated by utilizing a centrifugal effect in the operation process, and when the compressor stops operating, an oil discharge assembly is opened by utilizing the pressure change at two sides of the oil separation cavity, so that the lubricating oil existing in the oil separation cavity returns to an oil pool in a compressor shell, the internal oil return of the compressor is realized, the oil content of a system is reduced, and the heat exchange efficiency of the system is improved.
An embodiment of the present invention provides a compressor, which includes a compressor air discharge mechanism, as shown in fig. 1 and 2, the compressor air discharge mechanism includes: the oil separation device comprises an exhaust cavity 1, a connecting pipe 3, an oil separation cavity 4 and an oil pool which are connected in sequence. The connection pipe 3 is connected to the oil separation chamber 4 in the tangential direction of the oil separation chamber 4. The top of the oil separation cavity 4 is provided with an exhaust pipe 5, the bottom of the oil separation cavity 4 is provided with an oil outlet 15, and an oil discharge assembly is arranged at the oil outlet 15. The oil sump communicates with the oil separation chamber 4 through an oil discharge port 15. For a more detailed structure of the oil separation chamber 4, please refer to the description of the text related to fig. 1 to 2.
Because the compressor is provided with the compressor exhaust mechanism, lubricating oil in exhaust gas can be separated by centrifugal action during operation. When the compressor stops operating, the oil discharge assembly can be opened by utilizing the pressure change of the two sides of the oil separation cavity, so that lubricating oil existing in the oil separation cavity returns to an oil pool in the shell of the compressor, the internal oil return of the compressor is realized, the oil content of the system is reduced, and the heat exchange efficiency of the system is improved.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A compressor discharge mechanism, comprising:
the exhaust cavity, the connecting pipe, the oil separation cavity and the oil pool are sequentially connected; the connecting pipe is connected with the oil separation chamber along the tangential direction of the oil separation chamber; the top of the oil separation cavity is provided with an exhaust pipe, the bottom of the oil separation cavity is provided with an oil outlet, an oil outlet component is arranged at the oil outlet, and the oil pool is communicated with the oil separation cavity through the oil outlet;
the exhaust chamber includes: an inner chamber and an outer chamber; the inner cavity is communicated with the outer cavity through an exhaust hole, the inner cavity is connected with a cylinder of a compressor, the outer cavity is communicated with the oil separation cavity through the connecting pipe, and an exhaust valve and a first elastic piece are arranged in the inner cavity; the exhaust valve covers the end head of the cylinder under the pre-pressing action of the first elastic piece;
the oil drain assembly includes: the valve core, the second elastic piece and the plug; the valve core penetrates through the oil drain port, the first end of the valve core is abutted against the oil drain port, and the second end of the valve core is connected with the plug; the second elastic piece is sleeved on the valve core, the first end of the second elastic piece is abutted with the oil separation cavity, and the second end of the second elastic piece is abutted with the plug; the valve core includes: a valve head and a valve stem; one end of the valve rod is connected with the valve head, and the other end of the valve rod is connected with the plug; the valve head is a circular truncated cone-shaped valve head, and the valve rod is a cylindrical valve; the valve core realizes dredging or sealing according to the pressure difference of two sides of the oil separation cavity and the pre-pressing force action of the second elastic part.
2. The compressor exhaust mechanism according to claim 1, wherein the oil separation chamber is a cylindrical tubular chamber, an air inlet is formed in one side of the oil separation chamber, an air outlet is formed in the top of the oil separation chamber, and the exhaust pipe is inserted into the air outlet of the oil separation chamber.
3. The compressor discharge mechanism of claim 1, further comprising: a seal ring; the exhaust cavity is of a flange structure and is connected with a cylinder of the compressor through the sealing ring.
4. The compressor discharge mechanism of claim 1, further comprising:
the exhaust cavity, the connecting pipe and the oil separation cavity are all arranged in the shell, and the exhaust pipe penetrates through the shell to be communicated with the outside air.
5. A compressor, characterized in that it comprises a compressor discharge mechanism according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573886.1A CN110242542B (en) | 2019-06-28 | 2019-06-28 | Compressor exhaust mechanism and compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573886.1A CN110242542B (en) | 2019-06-28 | 2019-06-28 | Compressor exhaust mechanism and compressor thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110242542A CN110242542A (en) | 2019-09-17 |
| CN110242542B true CN110242542B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910573886.1A Active CN110242542B (en) | 2019-06-28 | 2019-06-28 | Compressor exhaust mechanism and compressor thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113371524B (en) * | 2021-06-30 | 2022-02-15 | 崴思新材料泰州有限公司 | Multilayer sticky tape coincide coiling machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006070871A (en) * | 2004-09-06 | 2006-03-16 | Denso Corp | Fluid machine |
| CN101358598B (en) * | 2007-07-30 | 2011-05-11 | Lg电子株式会社 | Hermetic compressor and refrigeration cycle device having the same |
| DE102008047447B4 (en) * | 2007-09-19 | 2019-03-14 | Denso Corporation | Oil separator and refrigerant compressor with this |
| JP2009127441A (en) * | 2007-11-20 | 2009-06-11 | Calsonic Compressor Inc | Gas compressor |
| JP2009221960A (en) * | 2008-03-17 | 2009-10-01 | Panasonic Corp | Compressor |
| JP4615583B2 (en) * | 2008-05-08 | 2011-01-19 | 日立アプライアンス株式会社 | Positive displacement compressor |
| CN102230464A (en) * | 2011-08-03 | 2011-11-02 | 中国电子科技集团公司第十六研究所 | Axial suction and exhaust valve for linear compressor |
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