CN210484042U - Scroll compressor with oil cooling function - Google Patents
Scroll compressor with oil cooling function Download PDFInfo
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- CN210484042U CN210484042U CN201920856171.2U CN201920856171U CN210484042U CN 210484042 U CN210484042 U CN 210484042U CN 201920856171 U CN201920856171 U CN 201920856171U CN 210484042 U CN210484042 U CN 210484042U
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- cooler
- air inlet
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Abstract
The utility model provides a take oily refrigerated scroll compressor relates to scroll compressor technical field. This scroll compressor includes the bearing assembly, the compressor oil sump, the oil pump, main bearing oil storage pool and air inlet, still including setting up the cooler in air inlet department, be provided with inside oil duct and ventilation groove in the cooler, inside oil duct and main bearing oil storage pool fluid intercommunication and keep apart with the air inlet, flow into inside the compressor through the inspiratory refrigerant of air inlet behind the ventilation groove, when the compressor operation, will come from the lubricating oil pump of compressor oil storage pool to bearing assembly through the oil pump, then at least partly inflow main bearing oil storage pool in the lubricating oil, the lubricating oil in the main bearing oil storage pool is cooled by leading-in cooler, flow back to the compressor oil storage pool at last. The cooler is arranged at the air inlet of the compressor, and the oil in the main bearing oil storage pool is guided into the cooler, so that the lubricating oil is cooled by the aid of a suction refrigerant with low temperature, and bearing capacity of the lubricating oil is effectively improved.
Description
Technical Field
The utility model relates to a scroll compressor technical field, concretely relates to take oily refrigerated scroll compressor.
Background
With the development of economy and technology, scroll compressors are widely used in various industries. When the compressor runs, lubricating oil circulates in the compressor, oil in the oil pool is conveyed to the bearing, the temperature rises after the bearing is lubricated, and the oil returns to the oil pool through the oil return channel. Excessive oil temperature reduces the oil carrying capacity and reduces the cooling capacity of the motor, resulting in a reduced motor load capacity.
For low pressure scroll compressors, the lubrication oil circulation is typically as follows: the lubricating oil is pumped to each lubricating point, after lubricating the bearing, a part of the lubricating oil is stored in an oil storage tank of the main bearing, discharged to the outside of the main bearing through an oil drain hole formed in the side part of the main bearing, and flows downwards through an oil drain groove of the motor stator to flow into an oil tank at the bottom of the compressor.
However, in the above manner, the circulation of the lubricating oil in the compressor is not cooled, and the oil temperature is higher under a heavy load working condition, so that the lubricating capacity is reduced, and the motor cannot be effectively cooled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough among the above-mentioned prior art, provide a take oily refrigerated scroll compressor to solve the inside lubricating oil cooling problem of compressor.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a take oily refrigerated scroll compressor, including bearing assembly, the compressor oil pool, the oil pump, main bearing oil pool and air inlet, scroll compressor is still including setting up the cooler in air inlet department, be provided with inside oil duct and ventilation groove in the cooler, inside oil duct and main bearing oil pool fluid intercommunication and keep apart with the air inlet, scroll compressor flows into inside scroll compressor after the inspiratory refrigerant of air inlet passes through the ventilation groove, when scroll compressor moves, will come from the lubricating oil pump sending to bearing assembly in compressor oil pool through the oil pump, then at least partly inflow main bearing oil pool in the lubricating oil, lubricating oil in the main bearing oil pool is cooled by leading-in cooler, flow back to the compressor oil pool at last.
Optionally, the cooler includes a main body provided with an oil inlet, a main groove for forming the ventilation groove, and a passage for forming the internal oil passage, and a fixing plate provided with an auxiliary groove corresponding to the main groove of the main body for forming the ventilation groove, after the main body and the fixing plate are assembled, thereby forming the internal oil passage and the ventilation groove which are not communicated with each other.
Optionally, the material of the main body is aluminum.
Optionally, the fixing plate is a stamping.
Alternatively, the fixing plate is welded at the air inlet by resistance welding.
Optionally, the fixing plate completely covers the air inlet.
Optionally, an oil guide pipe is arranged at a side portion of the main bearing oil storage tank, and the oil guide pipe is used for communicating the main bearing oil storage tank with an internal oil passage of the cooler.
Alternatively, the main groove for forming the ventilation groove on the main body may include a plurality of first main grooves alternately arranged with the passages of the internal oil passage.
Optionally, the main recess in the body for forming the vent slot further comprises a plurality of second main recesses disposed around the oil inlet.
Optionally, when the scroll compressor is in operation, the lubricant oil cooled by the cooler flows back to the compressor oil sump after passing through the stator of the motor of the scroll compressor.
The beneficial effects of the utility model include:
the utility model provides a scroll compressor includes bearing assembly, the compressor oil sump, the oil pump, main bearing oil sump and air inlet, scroll compressor is still including setting up the cooler in air inlet department, be provided with inside oil duct and ventilation groove in the cooler, inside oil duct and main bearing oil sump fluid intercommunication and keep apart with the air inlet, scroll compressor flows into inside scroll compressor through the inspiratory refrigerant of air inlet behind the ventilation groove, when scroll compressor moves, will come from the lubricating oil pump sending to the bearing assembly of compressor oil sump through the oil pump, then at least partly inflow main bearing oil sump in the lubricating oil, lubricating oil in the main bearing oil sump is cooled by leading-in cooler, flow back to the compressor oil sump at last. The cooler is arranged at the air inlet of the scroll compressor, and the oil in the main bearing oil storage pool is guided into the cooler, so that the cooling of the lubricating oil is carried out by utilizing the suction refrigerant with lower temperature, and the bearing capacity of the lubricating oil is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 illustrates a schematic structural view of a scroll compressor with oil cooling according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a main body of a cooler provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a fixing plate of a cooler according to an embodiment of the present invention;
fig. 4 shows a schematic view of an installation position of a cooler provided by an embodiment of the present invention.
Reference numerals: 1-a bearing assembly; 2-compressor oil sump; 3-main bearing oil storage pool; 4-an air inlet; 5-a cooler; 51-a body; 52-a fixed plate; 511-oil inlet; 512-main groove; 5121-a first main groove; 5122-a second main groove; 513-channel; 521-auxiliary grooves; 6-oil guide pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 shows a schematic structural diagram of a scroll compressor with oil cooling according to an embodiment of the present invention. As shown in fig. 1, the scroll compressor includes a bearing assembly 1 (it should be noted that, the bearing assembly 1 includes, but is not limited to, the bearing assembly shown in fig. 1), a compressor oil pool 2, an oil pump (not shown), a main bearing oil pool 3 and an air inlet 4, the scroll compressor further includes a cooler 5 disposed at the air inlet 4, an internal oil passage and a ventilation groove are disposed in the cooler 5, the internal oil passage is in fluid communication with the main bearing oil pool 3 and is isolated from the air inlet 4, refrigerant sucked in by the scroll compressor through the air inlet 4 flows into the interior of the scroll compressor after passing through the ventilation groove, when the scroll compressor is in operation, lubricating oil from the compressor oil pool 2 is pumped to the bearing assembly 1 by the oil pump, then at least a portion of the lubricating oil flows into the main bearing oil pool 3, and the lubricating oil (high temperature lubricating oil) in the main bearing oil pool, and finally flows back to the compressor oil sump 2. The dotted arrows in fig. 1 show the flow path of the lubricating oil when the scroll compressor is operated, and the solid arrows show the flow path of the sucked refrigerant in the vicinity of the intake port 4 when the scroll compressor is operated.
The cooler is arranged at the air inlet of the scroll compressor, and the oil in the main bearing oil storage pool is guided into the cooler, so that the cooling of the lubricating oil is carried out by utilizing the suction refrigerant with lower temperature, and the bearing capacity of the lubricating oil is effectively improved.
Alternatively, as shown in fig. 2 and 3, the cooler 5 includes a main body 51 and a fixing plate 52, the main body 51 being provided with an oil inlet 511, a main groove 512 for forming a ventilation groove, and a passage 513 for forming an internal oil passage, the fixing plate 52 being provided with an auxiliary groove 521 corresponding to the main groove 512 of the main body 51 for forming a ventilation groove, the internal oil passage and the ventilation groove being not communicated with each other after the main body 51 and the fixing plate 52 are assembled. Optionally, the material of the main body 51 is aluminum to enhance the heat exchange effect. The fixed plate 52 is preferably a stamped part. The fixing plate 52 may be welded at the intake port 4 by resistance welding. Preferably, the fixing plate 52 completely covers the intake port 4, thereby effectively cooling the lubricant oil in the internal oil passage using the suction refrigerant.
With continued reference to fig. 1, the side portion of the main bearing oil reservoir 3 is provided with an oil guide pipe 6, and the oil guide pipe 6 is used for communicating the main bearing oil reservoir 3 with an internal oil passage of the cooler 5 (specifically, an oil inlet 511 for communicating the main bearing oil reservoir 3 with an upper portion of the cooler 5).
Referring to fig. 2, the main groove 512 for forming the vent groove on the main body 51 includes a plurality of first main grooves 5121 alternately arranged with the passages 513 of the internal oil passage. The main groove 512 of the main body 51 for forming a ventilation groove further includes a plurality of second main grooves 5122 provided around the oil inlet 511. The internal oil passage and the ventilation groove can be limited by size to be provided with a plurality of oil passages and ventilation grooves, so that the cooling effect is ensured. The dashed arrows in fig. 2 show the flow path of the lubricating oil in the cooler 5.
Alternatively, when the scroll compressor is operated, the lubricating oil cooled by the cooler 5 flows back to the compressor oil sump 2 after passing through the stator of the motor of the scroll compressor. The lubricating oil cooled by the cooler 5 flows through the stator of the motor to cool the stator, so that the load capacity of the motor is improved.
The mounting position of the cooler 5 at the air intake 4 is shown in fig. 4, and the main body 51 and the fixing plate 52 are fitted (such that a plurality of grooves for forming ventilation grooves are correspondingly aligned) to be fixed inside the air intake 4, so that the refrigerant entering through the air intake 4 enters the interior of the compressor through the ventilation grooves, and the oil inlet 511 on the main body 51 is aligned with the oil guide pipe 6, so that the high-temperature lubricating oil flowing through the oil guide pipe 6 enters the interior of the cooler 5 through the oil inlet 511, and flows out of the cooler 5 through the passage 513 in the cooler 5. The high-temperature lubricant oil flowing through the passage 513 exchanges heat with the refrigerant flowing through the ventilation groove to be cooled.
In summary, a cooler is arranged at an air inlet of the compressor, the cooler forms a relatively closed internal oil channel, lubricating oil in the main bearing oil storage pool is guided into the oil channel of the cooler, the cooler is provided with a ventilation groove, a refrigerant sucked by the compressor flows into the compressor after passing through the ventilation groove, high-temperature lubricating oil flowing through the oil channel exchanges heat with the refrigerant flowing through the ventilation groove to be cooled, and the cooled lubricating oil flows through a motor stator to cool the motor; the lubricating oil passing through the motor flows into an oil pool of the compressor, and is pumped to each lubricating point of the compressor by an oil pump, and a part of the lubricating oil flows into the oil pool of the main bearing, and the circulation is carried out. The lubricating oil temperature of the oil pool of the compressor is effectively reduced, and in actual use, the oil temperature can be reduced by 15 degrees at most under the maximum load working condition compared with the prior art, so that the bearing capacity of the lubricating oil and the load capacity of the motor are guaranteed.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (9)
1. A scroll compressor with oil cooling comprises a bearing assembly, a compressor oil pool, an oil pump, a main bearing oil storage pool and an air inlet, it is characterized in that the scroll compressor also comprises a cooler arranged at the air inlet, an internal oil passage and a ventilation groove are arranged in the cooler, the internal oil passage is in fluid communication with the main bearing oil storage tank and is isolated from the air inlet, the refrigerant sucked by the scroll compressor through the air inlet flows into the scroll compressor after passing through the ventilation groove, pumping lubricating oil from the compressor oil sump to the bearing assembly by the oil pump while the scroll compressor is operating, at least a portion of the lubricant then flows into the main bearing reservoir, where the lubricant is directed into the cooler for cooling and then flows back to the compressor reservoir.
2. The oil-cooled scroll compressor according to claim 1, wherein the cooler includes a main body provided with an oil inlet, a main groove for forming the ventilation groove, and a passage for forming the internal oil passage, and a fixing plate provided with an auxiliary groove corresponding to the main groove of the main body for forming the ventilation groove, after the main body and the fixing plate are assembled, thereby forming the internal oil passage and the ventilation groove which are not communicated with each other.
3. The oil-cooled scroll compressor of claim 2, wherein the body is aluminum.
4. The oil-cooled scroll compressor of claim 2 or 3, wherein the fixing plate is a stamped part.
5. The oil-cooled scroll compressor of claim 4, wherein the fixing plate is welded at the air inlet by resistance welding.
6. The oil-cooled scroll compressor of claim 5, wherein the fixed plate completely covers the intake port.
7. The oil cooled scroll compressor of claim 1, wherein a side portion of the main bearing oil sump is provided with an oil guide pipe for communicating the main bearing oil sump with an internal oil passage of the cooler.
8. The oil-cooled scroll compressor of claim 2, wherein the main groove in the main body for forming the vent groove includes a plurality of first main grooves alternately arranged with the passage of the internal oil passage.
9. The oil-cooled scroll compressor of claim 8, wherein the primary recess in the body for forming a vent groove further comprises a plurality of secondary primary recesses disposed about the oil inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856171.2U CN210484042U (en) | 2019-06-06 | 2019-06-06 | Scroll compressor with oil cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920856171.2U CN210484042U (en) | 2019-06-06 | 2019-06-06 | Scroll compressor with oil cooling function |
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| Publication Number | Publication Date |
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| CN210484042U true CN210484042U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920856171.2U Active CN210484042U (en) | 2019-06-06 | 2019-06-06 | Scroll compressor with oil cooling function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118175A (en) * | 2019-06-06 | 2019-08-13 | 苏州英华特涡旋技术有限公司 | A kind of oil cooled screw compressor of band |
-
2019
- 2019-06-06 CN CN201920856171.2U patent/CN210484042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118175A (en) * | 2019-06-06 | 2019-08-13 | 苏州英华特涡旋技术有限公司 | A kind of oil cooled screw compressor of band |
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Address after: 215500, No. 68, Southeast Avenue, Southeast Economic Development Zone, Suzhou, Jiangsu, Changshu Patentee after: Suzhou yinghuate Vortex Technology Co., Ltd Address before: 215500, No. 68, Southeast Avenue, Southeast Economic Development Zone, Suzhou, Jiangsu, Changshu Patentee before: SUZHOU INVOTECH SCROLL TECHNOLOGIES Co.,Ltd. |