Compressor shell capable of recognizing filling amount of refrigerating machine oil
The visible oil level indicator in the compressor shell addresses oil quantity inconsistencies, ensuring optimal oil levels for reliable operation and performance by allowing real-time adjustments.
Patent Information
- Application Number
- CN202422503345.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-16
AI Technical Summary
During the production process of existing reciprocating piston compressors, the inaccurate amount of oil filling of the refrigerator leads to difficulties in starting, excessive shell temperature, abnormal mechanical sound and long-term pulling time. The failure of the oil filling equipment leads to a smaller or more oil volume, affecting the normal operation of the compressor.
A compressor housing that can identify the amount of refrigeration oil is designed. By setting a visual part and transparent glass on the lower housing, combined with scale markings, intuitive observation and accurate identification of the amount of refrigeration oil is achieved.
It can detect refrigeration oil problems in a timely manner, establish the best filling amount, avoid adverse effects, ensure the normal operation of the compressor, and improve refrigeration efficiency.
Smart Images
Figure CN223104726U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressor production, in particular to a compressor shell capable of identifying the filling amount of refrigeration oil. Background Art
[0002] At present, during the production process of reciprocating piston compressors, there are often abnormalities such as difficulty in starting the compressor or excessive shell temperature or even machine tripping. In addition, during the operation of the compressor, customers sometimes report abnormal mechanical noises and the compressor takes significantly longer to reach low temperature. After checking the compressor, and checking the accuracy of parts, assembly clearance and overload capacity of the motor, no faults such as part accuracy, assembly clearance and motor were found. Finally, after analysis, it was found that the compressor refrigeration oil was insufficient. The refrigeration oil of the compressor plays a role in cooling and lubrication during the operation of the machine. As a result, the compressor refrigeration oil is insufficient, resulting in poor cooling and lubrication. Well, the compressor has problems such as difficulty in starting, high shell temperature, and even tripping; and sometimes customers report abnormal mechanical sounds, the compressor's low-temperature time becomes significantly longer, and there is no problem with the precision assembly gap of parts. Finally, it is found that the compressor has too much refrigeration oil, which causes the motor rotor to contact the oil and mechanical oil stirring sound. At the same time, because of the large amount of oil filling, part of the oil is discharged to the customer's refrigeration system through the exhaust pipe, which not only occupies the heat exchange area, but also because the refrigerant dissolved in the oil increases, and the mass flow of the refrigerant participating in the evaporation process decreases, affecting the heat exchange and cooling capacity, causing the customer's low-temperature time to become significantly longer. In addition, sometimes due to the failure of the oil filling equipment at the production site, the amount of refrigeration oil filling is too little or too much, resulting in similar problems with customers. Summary of the invention
[0003] The utility model aims to solve the problems existing in the prior art and provide a compressor housing capable of identifying the filling amount of refrigeration oil.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A compressor housing capable of identifying the amount of refrigeration oil filled comprises an upper housing and a lower housing, wherein the lower housing is provided with a visualization portion, wherein the visualization portion can at least observe the refrigeration oil remaining in the lower housing and the position of the oil suction pipe of the crankshaft, and the visualization portion is also provided with a scale mark.
[0006] By setting the visualization part, the compressor housing can intuitively and accurately observe the oil amount in the compressor housing, so as to identify the refrigeration oil filling amount, which is helpful for the staff to find the refrigeration oil problem in time to avoid adverse effects on the subsequent normal operation of the compressor.
[0007] In some embodiments, the visualization part is an opening provided in the lower half of the lower housing. A transparent glass is provided at the opening, and the scale markings are provided on the transparent glass.
[0008] Furthermore, the opening is a rectangular hole, a circular hole or a sector-shaped hole, and the transparent glass is tempered curved glass.
[0009] Furthermore, the opening is provided in the middle of the lower half of the lower housing, and the scale markings are arranged in the middle of the transparent glass.
[0010] Furthermore, the lower housing is provided with a positioning extension part at the opening. The side of the transparent glass is mounted on the positioning extension part and is sealed and fixed.
[0011] In some embodiments, the lower housing includes an upper half of the lower housing and a lower half of the lower housing. The lower half of the lower housing is a transparent housing to form the visualization part, and the scale markings are provided on the lower half of the lower housing.
[0012] Furthermore, the transparent housing is a tempered glass housing, and both the upper half of the lower housing and the upper housing are metal housings.
[0013] Furthermore, the height of the lower half of the lower housing is 1 / 2 to 2 / 3 of the total height of the lower housing.
[0014] Furthermore, there is a concave-convex plug-in structure between the lower end surface of the upper half of the lower housing and the upper end surface of the lower half of the lower housing, and they are sealed and connected and fixed.
[0015] Furthermore, a support pin is provided in the lower housing. The support pin is used to support the pump body and the motor. The pump body includes a cylinder block, a crankshaft, a connecting rod, a piston and a cylinder head assembly. The crankshaft is installed on the shaft hole of the cylinder block. The motor is installed on the long shaft of the crankshaft. An oil suction pipe is provided at the lower end of the crankshaft. The oil suction pipe is inserted into the refrigeration oil, and the depth of the oil suction pipe inserted into the refrigeration oil can be observed through the visualization part.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. Through the setting of the visualization part on the compressor housing, the oil quantity inside the compressor housing can be directly and accurately observed, so as to identify the filling amount of the refrigeration oil, which is beneficial for the staff to timely discover problems with the refrigeration oil and avoid adverse effects on the subsequent normal operation of the compressor; 2. Through this visualization part, the oil inlet depth of the oil suction pipe can be identified, and based on the relationship between the filling amount and the oil inlet depth of the oil suction pipe, the optimal filling amount can be determined, and the position of the optimal filling amount scale line can be established; 3. Through this visualization part, the oil inlet depth of the compressor crankshaft oil suction pipe can be clearly seen. It can not only identify insufficient oil injection in the compressor, but also when the oil inlet depth is insufficient, by comparing with the position of the optimal filling amount scale line, add an appropriate amount of oil until it reaches the position of the optimal filling amount scale line; 4. Through this visualization part, problems with excessive refrigeration oil in the compressor can also be identified. When the filling amount of the refrigeration oil is too high, at this time, the oil inlet depth of the oil suction pipe exceeds the position of the optimal filling amount scale line, and the oil amount is continuously drained until the oil amount returns to the position of the optimal filling amount scale line. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a compressor housing of the present utility model that can identify the filling amount of refrigeration oil;
[0018] Figure 2 FIG. is a schematic diagram of the internal structure of a compressor housing of the present utility model that can identify the filling amount of refrigeration oil;
[0019] Figure 3 FIG. is a schematic diagram of the lower housing of the compressor of the present utility model;
[0020] Figure 4 FIG. is a schematic diagram of the structure of the transparent glass of the present utility model;
[0021] Figure 5 FIG. is another schematic diagram of the lower housing of the compressor of the present utility model;
[0022] Figure 6 FIG. is another schematic cross-sectional diagram of the lower housing of the compressor of the present utility model;
[0023] Figure 7 is Figure 6 the enlarged schematic diagram at position A in
[0024] In the figure: 1. Lower housing; 101. Upper half of the lower housing; 102. Lower half of the lower housing; 2. Upper housing; 3. Transparent glass; 4. Scale mark; 5. Opening; 6. Positioning extension; 7. Protrusion; 8. Groove; 9. Connecting rod; 10. Crankshaft; 11. Cylinder block; 12. Motor stator; 13. Process pipe; 14. Exhaust pipe; 15. Suction pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0027] As Figure 1 shown, a compressor housing capable of identifying the filling amount of refrigeration oil includes an upper housing 2 and a lower housing 1. A visualization part is provided on the lower housing 1. The visualization part can at least observe the refrigeration oil remaining in the lower housing and the position of the oil suction pipe of the crankshaft. Scale marks are also provided on the visualization part.
[0028] Through the setting of the visualization part of the compressor housing, the oil amount in the compressor housing can be intuitively and accurately observed to identify the filling amount of refrigeration oil, which is beneficial for the staff to timely discover problems with the refrigeration oil and avoid adverse effects on the subsequent normal operation of the compressor.
[0029] Through this visualization part, the optimal filling amount of the compressor refrigeration oil can also be determined. After the compressor runs and the refrigeration system runs for a period of time, the refrigeration oil will adsorb on the surfaces of each moving pair of the pump body, in the motor stator winding, etc., and in the two heat exchangers of the refrigeration system. Part of the oil cannot return to the compressor. After the compressor stops, through this visualization part, the oil inlet depth of the oil suction pipe can be identified, and through the relationship between the filling amount and the oil inlet depth of the oil suction pipe, the optimal filling amount and the position of the optimal filling amount scale line can be determined.
[0030] Through this visualization part, the problem of insufficient refrigeration oil in the compressor can also be discovered. When the compressor is running, since the refrigeration oil will adsorb on the surfaces of each moving pair of the pump body, in the motor stator winding, etc., and in the two heat exchangers of the refrigeration system, part of the oil cannot return to the compressor. At this time, when the oil inlet depth of the oil suction pipe is insufficient or the oil suction pipe just touches the oil surface, through this visualization part, the size of the oil inlet depth of the compressor crankshaft oil suction pipe can be clearly seen. It can not only identify the insufficient oil injection amount of the compressor, but also when the oil inlet depth is insufficient, by comparing with the position of the optimal filling amount scale line, add an appropriate amount of oil until it reaches the position of the optimal filling amount scale line.
[0031] Through this visualization part, it is also possible to identify the problem of excessive refrigerant oil in the compressor. When the compressor is running, since the refrigerant oil will adsorb on the surfaces of various moving pairs of the pump body, as well as the motor stator winding, etc., inside the two heat exchangers of the refrigeration system, it will cause some oil not to return to the compressor. When the refrigerant oil filling amount is on the high side, at this time, the oil inlet depth of the suction pipe exceeds the position of the optimal filling amount scale line, and the oil amount is continuously poured out to make the oil amount return to the position of the optimal filling amount scale line. Example 1
[0032] Combined with Figures 2 to 4 As shown, the visualization part is an opening 5 provided in the lower half of the lower housing 1. A transparent glass 3 is provided at the opening 5, and the scale mark 4 is provided on the transparent glass 3.
[0033] In this embodiment, the visualization part is formed by opening an opening on the lower housing and then installing the transparent glass. This method is relatively simple and can retain the original compressor housing structure to the greatest extent. The lower housing with visual observation through this method of installing the transparent glass can not only be used in the process of compressor production inspection and testing, but also can be applied to the finished compressor so that customers or users can observe the oil amount inside the compressor.
[0034] Further, the opening 5 is a rectangular hole, a circular hole or a sector-shaped hole, and different-shaped openings can be opened according to the compressor housing of different models; the transparent glass 3 is a tempered curved glass, which can better fit the opening and has high strength and impact resistance.
[0035] Further, the opening 5 is provided in the middle of the lower half of the lower housing so as to better observe the oil level and the suction pipe of the crankshaft; the scale mark 4 is arranged in the middle of the transparent glass 3 and is arranged vertically, so that the oil amount can be measured better.
[0036] Further, the lower housing 1 is provided with a positioning extension part 6 at the opening 5, and the side of the transparent glass 3 is mounted on the positioning extension part 6 and sealed and fixed.
[0037] The positioning extension part 6 can support the four sides of the transparent glass 3 to connect and fix the transparent glass 3; it can be sealed and connected with sealant, or it can be sealed and connected with adhesive in cooperation with a sealant strip. Example 2
[0038] Combined with Figures 5 to 7As shown, the lower housing 1 includes an upper half 101 and a lower half 102 of the lower housing. The lower half 102 of the lower housing is a transparent housing to form the visualization part, and the scale markings 4 are provided on the lower half 102 of the lower housing.
[0039] In this embodiment, the entire lower half of the lower housing is made into a transparent visualization part. This structure has a more comprehensive and large viewing range, can better observe the change of the oil in the compressor housing, and is beneficial to test the oil injection amount of the compressor and determine a reasonable oil injection amount.
[0040] Further, the transparent housing is a toughened glass housing, and the upper half 101 of the lower housing and the upper housing 2 are both metal housings, that is, the original materials.
[0041] Further, the height of the lower half 102 of the lower housing is 1 / 2 to 2 / 3 of the total height of the lower housing 1. This height setting can ensure observing the oil amount on the oil surface or the additional oil amount through it, and can observe the oil inlet depth of the pump body crankshaft and the oil pumping condition of the pump body.
[0042] Further, there is a concave-convex plug-in structure between the lower end face of the upper half 101 of the lower housing and the upper end face of the lower half 102 of the lower housing, and they are sealed and connected and fixed.
[0043] Specifically, a ring of protrusions 7 is provided on the end face of the lower half 102 of the lower housing, and a ring of grooves 8 is provided on the lower end face of the upper half 101 of the lower housing. The protrusions 7 are inserted into the grooves 8 to form a connection structure, and sealant can be applied for sealing. This concave-convex plug-in structure has good connection strength and stability, and can meet the use requirements of the compressor housing.
[0044] Further, a support pin is provided in the lower housing 1. The support pin is used to support the pump body and the motor. The pump body includes a cylinder block 11, a crankshaft 10, a connecting rod 9, a piston, and a cylinder head assembly, etc. The crankshaft 10 is installed on the shaft hole of the cylinder block 11, and the motor is installed on the long shaft of the crankshaft 10. The motor rotor is sleeved and installed on the crankshaft 10. An oil suction pipe is provided at the lower end of the crankshaft 10, and the oil suction pipe is inserted into the refrigeration oil. The visualization part can observe the depth of the oil suction pipe inserted into the refrigeration oil.
[0045] Specifically, a crankshaft 10 is installed on the shaft hole of the cylinder block 11, a piston is installed on the cylinder hole, there is a piston pin hole on the piston, a piston pin is installed in the piston pin hole, the small hole of the connecting rod 9 is connected to the piston pin, and the large hole of the connecting rod 9 is connected to the eccentric shaft of the crankshaft 10; a motor rotor is installed on the long shaft of the crankshaft 10, the motor stator 12 is installed on the stator surface of the cylinder block 11 and forms an installation gap with the rotor of the motor; support pins are arranged in the lower housing 1, the pump body is connected to the support pins through compression springs, and a process pipe 13, an exhaust pipe 14 and a suction pipe 15 are further connected to the outer periphery of the lower housing.
[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A compressor housing capable of identifying the refrigerant oil filling amount, comprising an upper housing and a lower housing, characterized in that, The lower housing is provided with a visualization part, and the visualization part can at least observe the refrigerant oil remaining in the lower housing and the position of the oil suction pipe of the crankshaft. A scale mark is also provided on the visualization part.
2. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 1, wherein The visualization part is an opening provided in the lower half of the lower housing. A transparent glass is provided at the opening, and the scale mark is provided on the transparent glass.
3. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 2, wherein The opening is a rectangular hole, a circular hole or a sector-shaped hole, and the transparent glass is a tempered curved glass.
4. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 2, characterized in that, The opening is provided in the middle of the lower half of the lower housing, and the scale mark is centrally arranged on the transparent glass.
5. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 2, wherein, The lower housing is provided with a positioning extension part at the opening, and the side of the transparent glass is installed on the positioning extension part and sealed and fixed.
6. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 1, wherein The lower housing includes an upper half of the lower housing and a lower half of the lower housing. The lower half of the lower housing is a transparent housing to form the visualization part, and the scale mark is provided on the lower half of the lower housing.
7. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 6, wherein The transparent housing is a tempered glass housing, and the upper half of the lower housing and the upper housing are both metal housings.
8. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 6, wherein The height of the lower half of the lower housing is 1 / 2 to 2 / 3 of the total height of the lower housing.
9. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 6, wherein An uneven plug-in structure is provided between the lower end surface of the upper half of the lower housing and the upper end surface of the lower half of the lower housing, and they are sealed and connected and fixed.
10. The compressor housing capable of identifying the refrigerant oil filling amount according to claim 1, characterized in that, A support pin is provided in the lower housing. The support pin is used to support the pump body and the motor. The pump body includes a cylinder block, a crankshaft, a connecting rod, a piston and a cylinder head assembly. The crankshaft is installed on the shaft hole of the cylinder block, and the motor is installed on the long shaft of the crankshaft. An oil suction pipe is provided at the lower end of the crankshaft. The oil suction pipe is inserted into the refrigerant oil, and the visualization part can observe the depth of the oil suction pipe inserted into the refrigerant oil.