CN111852823A - Compressor, compressor shell assembly and oil return measuring method thereof - Google Patents
Compressor, compressor shell assembly and oil return measuring method thereof Download PDFInfo
- Publication number
- CN111852823A CN111852823A CN202010732051.9A CN202010732051A CN111852823A CN 111852823 A CN111852823 A CN 111852823A CN 202010732051 A CN202010732051 A CN 202010732051A CN 111852823 A CN111852823 A CN 111852823A
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- compressor
- assembly
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- oil
- compressor housing
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 18
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 86
- 239000003507 refrigerant Substances 0.000 claims description 11
- 239000010726 refrigerant oil Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000005057 refrigeration Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a compressor, a compressor shell assembly and an oil return measuring method thereof, wherein the compressor comprises the following steps: the compressor comprises a compressor shell, a lens and a lens holder, wherein the compressor shell is provided with a light-transmitting lens hole and an observation lens hole, and the observation lens hole is formed in the bottom of the compressor shell in the gravity direction; the light transmitting mirror assembly is arranged in the light transmitting sight glass hole, and light rays of a light source penetrate through the light transmitting mirror assembly to enter the interior of the compressor shell; and the observation mirror assembly is arranged in the observation mirror hole. The compressor, the compressor shell assembly and the oil return measuring method of the compressor can realize a simple, quick and effective oil circulation testing method.
Description
Technical Field
The invention relates to the field of compressors, in particular to a compressor, a compressor shell assembly and an oil return measuring method of the compressor.
Background
The compressor is usually the same as the refrigeration system, and the residual oil test and the oil circulation test of the refrigeration system are synchronously executed and are mainly used for judging whether the oil quantity in the compressor can meet the lubricating requirement after the air conditioning system runs.
The currently common oil return measuring method is a simple weighing method and generally comprises the following steps: cleaning a system pipeline; recording the bare weight L of the compressor, injecting oil and weighing A; the compressor is connected into the system, and the system is vacuumized for pressure maintaining; if the pressure maintaining is good, filling the refrigerant; ending after the operation under the preset working condition; the refrigerant is slowly released through a pressure interface, and the brought oil is contained and taken by a beaker; disassembling the compressor and weighing B; and finally, calculating the residual oil quantity C which is B-L.
Adopt above-mentioned simple and easy weighing method to do the residual oil experiment, need dismantle the compressor and weigh, when carrying out other operating mode tests, need wash the system pipeline again according to above-mentioned step, the oiling, weigh, the evacuation, fill operations such as refrigerant, pressurize to guarantee that the injection volume of refrigeration oil and refrigerant keeps the uniformity with last operating mode, the experiment cycle is longer, the operation is complicated.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a compressor, a compressor shell assembly and an oil return measuring method thereof, which can realize a simple, quick and effective oil circulation testing method.
The present invention provides a compressor housing assembly comprising:
the compressor comprises a compressor shell, a lens and a lens holder, wherein the compressor shell is provided with a light-transmitting lens hole and an observation lens hole, and the observation lens hole is formed in the bottom of the compressor shell in the gravity direction;
the light transmitting mirror assembly is arranged in the light transmitting sight glass hole, and light rays of a light source penetrate through the light transmitting mirror assembly to enter the interior of the compressor shell;
and the observation mirror assembly is arranged in the observation mirror hole.
In some embodiments of the invention, the viewing mirror assembly comprises a viewing mirror and a viewing connection tube connecting the viewing mirror to the viewing mirror aperture.
In some embodiments of the invention, the axial direction of the observation connection pipe is perpendicular to the direction of gravity, and the bottom of the observation connection pipe is tangent to the bottom of the inner wall of the compressor housing.
In some embodiments of the invention, the sight glass assembly further comprises a float ball positioned on top of the sight glass when the oil level of the compressor housing is higher than the sight glass; when the oil level of the compressor shell is lower than the observation mirror, the floating ball is positioned at the bottom of the observation mirror.
In some embodiments of the invention, the observation mirror is provided with scales corresponding to the volumes of the bottom cavities of the compressor one by one.
In some embodiments of the invention, further comprising:
and the reflector component is connected to the observation mirror component so as to reflect the oil level observed by the observation mirror component to the observation window.
In some embodiments of the invention, further comprising:
the camera shooting assembly is connected to the observation mirror assembly to collect the oil level image observed by the observation mirror assembly.
In some embodiments of the present invention, an angle formed between the axial direction of the transparent mirror assembly and the gravity direction is 0 to 75 degrees.
According to still another aspect of the present invention, there is also provided a horizontal compressor including the compressor housing assembly as described above.
According to another aspect of the present invention, there is also provided an oil return measurement method, including:
filling the horizontal compressor with the refrigeration oil;
enabling the shell of the horizontal compressor to be in a vacuum state;
charging the horizontal compressor with refrigerant;
and recording the oil levels of the horizontal compressor under different working conditions and in different processes through the observation mirror assembly.
Compared with the prior art, the invention has the following advantages:
the light-transmitting mirror assembly is arranged in the compressor shell assembly to enable the light source to enter the interior of the compressor shell, and the oil level at the bottom of the compressor shell can be observed through the observation mirror assembly arranged at the bottom of the compressor shell in the gravity direction, so that the compressor does not need to be repeatedly disassembled during oil level measurement, and the working efficiency is high; meanwhile, the change condition of the oil level in the compressor can be observed on line in the running processes of system starting, variable working conditions and the like, and the method is simple, direct and effective.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 shows a schematic view of a compressor housing assembly according to an embodiment of the present invention.
FIG. 2 shows a schematic view of a compressor housing assembly according to another embodiment of the present invention.
Fig. 3 shows a schematic view of a mirror assembly according to an embodiment of the invention.
Fig. 4 shows a flow chart of an oil return measurement method according to an embodiment of the invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
To ameliorate the deficiencies of the prior art, the present invention provides a compressor housing assembly. The compressor housing assembly provided by the present invention will be described below with reference to fig. 1 to 3, respectively. FIG. 1 shows a schematic view of a compressor housing assembly according to an embodiment of the present invention. FIG. 2 shows a schematic view of a compressor housing assembly according to another embodiment of the present invention. Fig. 3 shows a schematic view of a mirror assembly according to an embodiment of the invention.
The compressor housing assembly 1 includes a compressor housing 10, a light transmissive mirror assembly 20, and a sight mirror assembly 30. The compressor housing 10 is provided with a lens hole 13 and a viewing lens hole 14. The sight glass hole 14 is provided in a bottom 15 of the compressor housing 10 in the direction of gravity. The transparent mirror assembly 20 is disposed in the transparent viewing hole 13, and the light of the light source of the transparent mirror assembly 20 passes through the transparent mirror assembly 20 to enter the compressor housing 10. The observation mirror assembly 30 is disposed in the observation mirror hole 14.
Specifically, it is possible to drill a hole directly in the compressor housing 10 to obtain a see-through mirror hole 13 and a view mirror hole 14 that penetrate between the inner wall 12 and the outer wall 11 of the compressor housing 10. In other embodiments, the compressor housing 10 with the see-through mirror opening 13 and the viewing mirror opening 14 extending between the inner wall 12 and the outer wall 11 can also be directly customized during the molding of the compressor housing. Further, the transparent mirror aperture 13 and the viewing mirror aperture 14 may be threaded through holes to facilitate the mounting of the threaded transparent mirror assembly 20 and the viewing mirror assembly 30 to the compressor housing 10 in cooperation with the threaded through holes.
In the present embodiment, the observation mirror assembly 30 includes an observation mirror 31 and an observation connection tube 32 connecting the observation mirror 31 to the observation mirror hole 14. Specifically, one end of the observation connection pipe 32 may have an external thread to match an internal thread of the observation scope hole 14. The other end of the observation connection tube 32 is fixed with an observation mirror 31. The observation mirror 31 may be fixed to the other end of the observation connection pipe 32 by means of an adhesive, an interference fit, a bolt connection, or the like. In some embodiments, the observation connection pipe 32 has a hollow cavity, and the refrigerant oil at the bottom of the compressor casing 10 can flow into the observation connection pipe 32 from one end of the observation connection pipe 32 for being observed by the observation mirror 31 at the other end of the observation connection pipe 32. In other embodiments, the observation connection pipe 32 is a non-hollow transparent pipe, so that the observation mirror 31 at the other end of the observation connection pipe 32 can observe the oil level of the refrigeration oil at the bottom of the compressor housing 10 through the non-hollow transparent observation connection pipe 32.
In the present embodiment, the axial direction of the observation connection pipe 32 is perpendicular to the gravity direction (the vertical downward direction in fig. 1 and 2 is the gravity direction), and the bottom of the observation connection pipe 32 is tangent to the bottom of the inner wall 12 of the compressor housing 10. Thereby, the oil level of the refrigerant oil at the bottom of the compressor housing 10 can be observed from the observation mirror 31.
In other embodiments, the observation mirror assembly 30 further includes a float ball (not shown) positioned on top of the observation mirror 31 when the oil level of the compressor housing 10 is higher than the observation mirror 31 (the oil level of the compressor housing 10 cannot be observed from the observation mirror 31). In other words, only the middle-lower part of the float ball can be observed in the observation mirror 31. When the oil level of the compressor housing 10 is lower than the observation mirror 31 (the oil level of the compressor housing 10 cannot be observed from the observation mirror 31), the float ball is located at the bottom of the observation mirror. In other words, only the middle upper part of the float ball can be observed in the observation mirror 31. Further, in this embodiment, even if the oil level of the compressor housing 10 is higher than the observation mirror 31 or the oil level of the compressor housing 10 is lower than the observation mirror 31 so that the oil level of the compressor housing 10 cannot be observed from the observation mirror 31, the oil level at the bottom of the compressor housing 10 can be determined based on the position of the float in the observation mirror 31 and the proportion of the visible portion of the float in the observation mirror 31 to the entire float. Further, in some embodiments, when the refrigerant oil has a color, when the upper surface of the refrigerant oil cannot be seen in the observation mirror 31, it may be determined that the oil level of the compressor housing 10 is higher than the observation mirror 31 or the oil level of the compressor housing 10 is lower than the observation mirror 31 according to the color observed in the observation mirror 31. For example, when the upper surface of the refrigerant oil cannot be seen in the observation mirror 31, the color of the refrigerant oil observed in the observation mirror 31, it is determined that the oil level of the compressor housing 10 is higher than the observation mirror 31; the color of the refrigerant oil that cannot be observed in the observation mirror 31 determines that the oil level of the compressor housing 10 is lower than the observation mirror 31.
In this embodiment, the observation mirror 31 is provided with scales corresponding to the volumes of the bottom cavities of the compressor one by one. The oil level and the amount of the frozen oil can be directly determined from the scale position where the upper surface of the frozen oil is observed on the observation mirror 31 (the scale directly marks the oil level and the amount of the oil). In other embodiments, the oil level and the oil amount of the frozen oil may also be calculated based on the scale position where the upper surface of the frozen oil is observed on the observation mirror 31 (the scale marks only the upper surface position).
In the embodiment shown in fig. 3, the compressor housing assembly 1 may further comprise a mirror assembly 40. A mirror assembly 40 is coupled to the viewing mirror assembly 30 to reflect the oil level viewed by the viewing mirror assembly 30 to a viewing window 44. In a particular implementation, the optical path may be formed by a zigzag tube 43, as shown in fig. 3. Specifically, two mirrors 41 and 42 are provided at two corners of the zigzag tube 43, respectively. The oil level observed by the observation mirror assembly 30 is reflected to the observation window 44 by the angular arrangement of the two mirrors 41 and 42 in cooperation with the zigzag tube 43. In fig. 3, the angle of the corners of the zigzag tube 43 are both 90 degrees, so that the two reflectors 41 and 42 can be disposed opposite to each other, and the reflectors 41 and 42 are parallel and at 45 degrees with respect to the wall of the zigzag tube 43, to reflect the oil level observed by the observation mirror assembly 30 to the observation window 44. The present invention is not so limited and other arrangements of the mirror assembly 40 are within the scope of the present invention. Thus, the oil amount in the compressor can be directed to the eyes of the observer by plane reflection using the principle of reflection of light. Ensuring the safety of the observer.
In some embodiments, the compressor housing assembly 1 may also include a camera assembly. A camera assembly may be coupled to the viewing mirror assembly 30 to capture an image of the oil level viewed by the viewing mirror assembly 30. In the foregoing embodiment, the camera assembly may also be connected to the viewing window 44 of the mirror assembly 40, and the invention is not limited thereto. This makes it possible to mount the image pickup unit on the observation mirror 31 of the observation mirror unit 30. The camera shooting assembly can be connected with a display end, so that the experimental result can be visually observed at the display end conveniently. Therefore, the functions of real-time recording, timing photographing, automatic storage and identification can be realized. Not only can the safety of an observer be ensured, but also the oil level can be distinguished according to the scales, the colors and the bubbles.
Specifically, the light source at the transparent mirror assembly 20 may be natural light, a light source carried by the transparent mirror assembly 20, or another light source. When a source of unnatural light is used, the light source can be made to illuminate the transparent mirror of the transparent mirror assembly 20 perpendicularly, allowing the light source to be efficiently injected into the interior of the compressor housing 10.
Specifically, an included angle formed between the axial direction of the transparent mirror assembly 30 and the gravity direction is 0 to 75 degrees. As shown in fig. 1, when the angle formed between the axial direction of the transparent mirror assembly 30 and the gravity direction is 105 to 180 degrees (in other words, when the transparent mirror assembly 30 is mounted on the upper portion of the compressor housing 10), the intersection point of the straight line of the axial direction of the transparent mirror assembly 30 and the straight line of the axial direction of the observation mirror assembly 30 is the bottom 15 of the compressor housing 10. As shown in fig. 2, when the included angle between the axial direction of the transparent mirror assembly 30 and the gravity direction is 0 to 75 degrees (in other words, when the transparent mirror assembly 30 is installed at the lower portion of the compressor housing 10), one end of the transparent mirror assembly 30 connected to the compressor housing 10 is directly located at the bottom 15 of the compressor housing 10, so that the intersection point of the straight line of the axial direction of the transparent mirror assembly 30 and the straight line of the axial direction of the observation mirror assembly 30 is the bottom 15 of the compressor housing 10. Thereby, the light source is efficiently injected into the bottom 15 of the compressor housing 10 so that a clear and bright oil level can be observed by the observation mirror assembly 30.
The above is merely an illustrative description of various implementations of the invention, which are not limiting and can be implemented alone or in combination.
According to still another aspect of the present invention, there is also provided a horizontal compressor. The horizontal compressor may include a compressor housing assembly as described above. Specifically, the horizontal compressor can be applied to a vehicle refrigeration system, an oil pool is not designed, and the normal operation of the compressor can be ensured only by ensuring that a certain amount of oil is in the compressor in the actual operation process of the compressor. If the compressor is observed to have no oil film, the compressor is indicated to be lack of oil and poor in lubrication; if an oil level or oil film is observed in the compressor, it indicates that the compressor is well lubricated. After the test condition is finished, the oil level scale can be observed through a sight glass after the compressor is stood for 10 minutes (the invention is not limited by the invention), and the residual oil quantity in the compressor is calculated.
According to another aspect of the invention, the invention also provides an oil return measuring method. Referring now to fig. 4, fig. 4 shows a flow chart of a method of measuring oil return according to an embodiment of the present invention. Fig. 4 shows the following steps in total:
step S210: the horizontal compressor as described above is filled with the refrigerant oil.
Specifically, the horizontal compressor may be connected to the laboratory bench before step S220.
Step S220: and enabling the shell of the horizontal compressor to be in a vacuum state.
Step S230: and filling refrigerant into the horizontal compressor.
Step S240: and recording the oil levels of the horizontal compressor under different working conditions and in different processes through the observation mirror assembly.
Specifically, the operating conditions may include, but are not limited to, standard operating conditions, high load high speed, high load low speed, low load high speed, low load low speed, and the like. Different processes for the horizontal compressor may include, but are not limited to, compressor start-stop and run processes. Specifically, if an oil-free film in the horizontal compressor is observed, the lubrication of the horizontal compressor is poor; if an oil film or oil level is observed in the horizontal compressor, the compressor is well lubricated. Furthermore, when the operation of the horizontal compressor is finished, the scale corresponding to the oil level in the horizontal compressor can be recorded through the sight glass viewing port, and the residual oil amount is calculated according to the volume of the cavity of the corresponding horizontal compressor.
Compared with the prior art, the invention has the following advantages:
the light-transmitting mirror assembly is arranged in the compressor shell assembly to enable the light source to enter the interior of the compressor shell, and the oil level at the bottom of the compressor shell can be observed through the observation mirror assembly arranged at the bottom of the compressor shell in the gravity direction, so that the compressor does not need to be repeatedly disassembled during oil level measurement, and the working efficiency is high; meanwhile, the change condition of the oil level in the compressor can be observed on line in the running processes of system starting, variable working conditions and the like, and the method is simple, direct and effective. The invention can realize the consistency of the filling amount and the oil sealing amount under different working conditions. Particularly, if adopt weighing method to carry out oil circulation test, measure at every turn and all need evacuation again, fill in the refrigerant, can take out partly lubricating oil when releasing the refrigerant, and the accurate measurement is hardly realized to remaining oil mass in the system, and the oil mass will have the deviation in the system when carrying out different operating mode tests, can not guarantee single variable, influences the test result. The invention can observe the oil quantity of the compressor through the sight glass without re-evacuating and filling the system with the refrigerant, thereby avoiding the influence of the oil quantity change on the measurement result and ensuring the consistency of the refrigerant and the oil quantity in the system when different working conditions are switched.
Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
Claims (10)
1. A compressor housing assembly, comprising:
the compressor comprises a compressor shell, a lens and a lens holder, wherein the compressor shell is provided with a light-transmitting lens hole and an observation lens hole, and the observation lens hole is formed in the bottom of the compressor shell in the gravity direction;
the light transmitting mirror assembly is arranged in the light transmitting sight glass hole, and light rays of a light source penetrate through the light transmitting mirror assembly to enter the interior of the compressor shell;
and the observation mirror assembly is arranged in the observation mirror hole.
2. The compressor housing assembly of claim 1, wherein the sight glass assembly includes a sight glass and a sight connection tube connecting the sight glass to the sight glass aperture.
3. The compressor housing assembly of claim 2, wherein an axial direction of the sight connection tube is perpendicular to the direction of gravity, and a bottom of the sight connection tube is tangential to a bottom of an inner wall of the compressor housing.
4. The compressor housing assembly of claim 2, wherein the sight glass assembly further comprises a float ball positioned on top of the sight glass when the oil level of the compressor housing is higher than the sight glass; when the oil level of the compressor shell is lower than the observation mirror, the floating ball is positioned at the bottom of the observation mirror.
5. The compressor housing assembly of claim 2, wherein the sight glass is provided with a scale corresponding to a bottom cavity volume of the compressor one to one.
6. The compressor housing assembly of claim 1, further comprising:
and the reflector component is connected to the observation mirror component so as to reflect the oil level observed by the observation mirror component to the observation window.
7. The compressor housing assembly of claim 1, further comprising:
the camera shooting assembly is connected to the observation mirror assembly to collect the oil level image observed by the observation mirror assembly.
8. The compressor housing assembly of claim 1, wherein the axial direction of the light transmissive mirror assembly is at an angle of 0 to 75 degrees to the direction of gravity.
9. A horizontal compressor comprising a compressor housing assembly according to any one of claims 1 to 8.
10. An oil return measurement method, characterized by comprising:
filling the horizontal compressor of claim 9 with a refrigerant oil;
enabling the shell of the horizontal compressor to be in a vacuum state;
charging the horizontal compressor with refrigerant;
and recording the oil levels of the horizontal compressor under different working conditions and in different processes through the observation mirror assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732051.9A CN111852823A (en) | 2020-07-27 | 2020-07-27 | Compressor, compressor shell assembly and oil return measuring method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010732051.9A CN111852823A (en) | 2020-07-27 | 2020-07-27 | Compressor, compressor shell assembly and oil return measuring method thereof |
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| CN111852823A true CN111852823A (en) | 2020-10-30 |
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