Oil-gas separator
By designing an oil-gas separator with a dual filtration and separation mechanism and a clamping mechanism, the problems of poor separation effect and complicated cleaning in the existing technology are solved, realizing efficient oil-gas separation and convenient recovery of refrigeration oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHIHONG TAIHE TECHNOLOGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-17
AI Technical Summary
Existing oil-gas separators have mediocre separation effects, short cleaning cycles, complex operation, and low storage capacity of refrigeration oil, making recycling inconvenient.
A separation mechanism including a bracket, insert box, box cover, filter layer and filter screen is designed. It separates the refrigerant gas through double filtration, and is easy to disassemble and assemble with a clamping mechanism. The oil collection box collects the separated engine oil.
It achieves efficient oil-gas separation, simplifies the cleaning process of filter layers and screens, and facilitates the recycling of refrigeration oil.
Smart Images

Figure CN224136147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil-gas separation technology, and more specifically, to an oil-gas separator. Background Technology
[0002] The refrigerant gas discharged from the compressor in the refrigeration system inevitably contains a small amount of refrigeration oil. The refrigeration oil entering the refrigeration system will affect the heat transfer efficiency of the condenser and evaporator in the refrigeration system, thereby reducing the refrigeration effect. This situation is particularly serious in low-temperature refrigeration systems. Therefore, an oil-gas separator is installed between the compressor and the condenser to reduce the oil content in the refrigerant gas of the refrigeration system.
[0003] When using oil-gas separators to separate oil and gas from the refrigerant gas discharged from compressors for extended periods, most methods rely solely on filtration, resulting in mediocre separation efficiency, short cleaning cycles, and poor overall performance. Prolonged oil-gas separation leads to a buildup of oil residue on the filter module, affecting subsequent separation. Existing oil-gas separators are typically secured with multiple bolts, making disassembly and assembly inconvenient, hindering quick cleaning of the filter module, and complicating operation. Furthermore, the refrigeration oil separated by existing oil-gas separators is usually stored directly within the separator, resulting in limited storage capacity and difficulty in rapid recycling. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides an oil-gas separator to solve the technical problems mentioned in the background art.
[0006] Two technical solutions
[0007] To achieve the above objectives, this utility model provides the following technical solution: an oil-gas separator, comprising a base, a support column, and a separation box. The support column is fixedly installed on the base, and the separation box is fixedly installed on the support column. The separation box is provided with an air inlet pipe and an exhaust pipe. A separation mechanism is provided inside the separation box. The separation mechanism includes a bracket, a box, a cover, a filter layer, and a filter screen. The bracket is fixedly installed inside the separation box. The separation box has an opening. The end of the box passes through the opening and is inserted into the separation box. The box contacts the bracket. The cover is fixedly installed on the box. The filter layer and the filter screen are both fixedly installed inside the box. A limiting strip is fixedly installed inside the separation box. The box is located between the limiting strip and the bracket. A partition is provided inside the separation box. A vent hole is provided on the partition. Two sets of separation mechanisms are provided and located on both sides of the partition.
[0008] The present invention is further configured such that a sealing ring is fixedly installed on the box cover, and the sealing ring is in contact with the separation box.
[0009] The present invention is further configured such that the bracket is provided with a sliding groove, the insert box is provided with a sliding strip, and the sliding strip is slidably installed in the sliding groove.
[0010] The present invention is further configured such that the separation box is provided with a locking mechanism, the locking mechanism including a fixing box, a spring, a cross plate and a pin, the fixing box is fixedly installed on the separation box and on the same side as the opening, the spring is fixedly installed inside the fixing box, the cross plate is fixedly installed on one end of the spring, the pin is slidably installed inside the fixing box and one end of the pin extends out of the fixing box, the pin is fixedly connected to the end of the cross plate, and the box cover is provided with a pin groove corresponding to the pin.
[0011] The present invention is further configured such that a sliding rod is fixedly installed inside the fixing box, the middle part of the horizontal plate is slidably installed on the sliding rod, and a wrench is provided on the horizontal plate.
[0012] The present invention is further configured such that a guide pipe is provided on the partition plate, an oil drain pipe is provided on the separation box, and an oil collection box is fixedly installed on the base and connected to the oil drain pipe.
[0013] The present invention is further configured such that inclined platforms are fixedly installed inside both the partition and the separation box.
[0014] The present invention is further provided that an air guide pipe is fixedly provided on the partition plate.
[0015] Three beneficial effects
[0016] Compared with the prior art, the present invention provides an oil-gas separator with the following advantages:
[0017] 1. By setting up insert boxes, filter layers, and filter screens, when separating oil and gas in the refrigerant gas discharged from the compressor, the insert boxes installed on both sides of the partition can perform double filtration and separation of the gas entering the separation chamber, thereby intercepting and separating the oil and gas carried by the refrigerant gas to the greatest extent. The separated gas is discharged from the exhaust pipe, and the oil and gas separation effect is good. The sealing ring installed on the box cover improves the sealing effect of the insert box installation and prevents the refrigerant gas from leaking out of the opening.
[0018] 2. By setting up springs, cross plates, and pins, when installing the insert box, the wrench is pulled to compress the spring, and the pin is retracted into the fixing box. After inserting the insert box into the separation box, the wrench is released, and the spring pushes the pin into the pin groove to lock the box cover in place. When the filter layer needs to be cleaned, simply pull the wrench to release the fixing of the box cover, and the insert box can be easily pulled out of the separation box for cleaning. The overall operation is simple and convenient, and the filter layer and filter screen can be quickly disassembled and cleaned, with high efficiency.
[0019] Third, by setting up an oil collection box, a guide pipe, and an inclined platform, when collecting the separated engine oil, the engine oil intercepted by the filter layer and filter screen on the baffle is collected at the guide pipe and discharged into the oil drain pipe, while the engine oil intercepted by the filter layer and filter screen below the baffle is directly collected at the oil drain pipe and discharged. Thus, the engine oil is collected and stored through the oil collection box, which facilitates the recycling of engine oil in the later stage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the first axial view of the internal structure of the separation box in this utility model;
[0022] Figure 3 This is a schematic diagram of the second axis view of the internal structure of the separation box in this utility model;
[0023] Figure 4 This is a schematic diagram of the separation box in this utility model;
[0024] Figure 5 This is a schematic diagram of the first axial view of the insertion box in this utility model;
[0025] Figure 6 This is a schematic diagram of the second axis view of the insertion box in this utility model;
[0026] Figure 7 This is a schematic diagram of the structure of the fixing box in this utility model.
[0027] In the diagram: 1. Base; 2. Support column; 3. Separator box; 4. Inlet pipe; 5. Exhaust pipe; 6. Bracket; 7. Insert box; 8. Box cover; 9. Filter layer; 10. Filter screen; 11. Limiting strip; 12. Partition plate; 13. Sealing ring; 14. Sliding strip; 15. Fixing box; 16. Spring; 17. Horizontal plate; 18. Pin head; 19. Sliding rod; 20. Wrench; 21. Guide pipe; 22. Oil drain pipe; 23. Inclined platform; 24. Air guide pipe. Detailed Implementation
[0028] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0031] Please see Figures 1-6 An oil-gas separator includes a base 1, a support column 2, and a separation chamber 3. The support column 2 is fixedly mounted on the base 1, and the separation chamber 3 is fixedly mounted on the support column 2. The separation chamber 3 is provided with an inlet pipe 4 and an exhaust pipe 5. A separation mechanism is provided inside the separation chamber 3. The separation mechanism includes a bracket 6, a insert box 7, a cover 8, a filter layer 9, and a filter screen 10. The bracket 6 is fixedly mounted inside the separation chamber 3. The separation chamber 3 has an opening, and the end of the insert box 7 passes through the opening and is inserted into the separation chamber 3. The insert box 7 contacts the bracket 6. The cover 8 is fixedly mounted. On the insert box 7, the filter layer 9 and the filter screen 10 are both fixedly installed inside the insert box 7. The separation box 3 is fixedly installed with a limiting strip 11. The insert box 7 is located between the limiting strip 11 and the bracket 6. The separation box 3 is provided with a partition 12. The partition 12 is provided with a vent hole. The separation mechanism is provided in two sets and is located on both sides of the partition 12 respectively. The box cover 8 is fixedly installed with a sealing ring 13. The sealing ring 13 is in contact with the separation box 3. The bracket 6 is provided with a sliding groove. The insert box 7 is provided with a sliding strip 14. The sliding strip 14 is slidably installed in the sliding groove.
[0032] Specifically, when separating the oil and gas in the refrigerant gas discharged from the compressor, the gas entering the separation chamber 3 can be filtered and separated twice by inserting the boxes 7 on both sides of the partition 12, thereby intercepting and separating the oil and gas carried by the refrigerant gas to the greatest extent. The separated gas is discharged from the exhaust pipe 5. The oil and gas separation effect is good. The sealing effect of the box 7 is improved by the sealing ring 13 installed on the box cover 8, preventing the refrigerant gas from leaking out of the opening.
[0033] Please see Figure 1 , Figure 2 and Figure 7The separation box 3 is provided with a clamping mechanism, which includes a fixing box 15, a spring 16, a horizontal plate 17, and a pin 18. The fixing box 15 is fixedly installed on the separation box 3 and on the same side as the opening. The spring 16 is fixedly installed inside the fixing box 15. The horizontal plate 17 is fixedly installed at one end of the spring 16. The pin 18 is slidably installed inside the fixing box 15 and one end of the pin 18 extends out of the fixing box 15. The pin 18 is fixedly connected to the end of the horizontal plate 17. The box cover 8 is provided with a pin groove corresponding to the pin 18. A slide rod 19 is fixedly installed inside the fixing box 15. The middle part of the horizontal plate 17 is slidably installed on the slide rod 19. A wrench 20 is provided on the horizontal plate 17.
[0034] Specifically, when installing the insert box 7, the wrench 20 is pulled to compress the spring 16, and the pin head 18 is retracted into the fixing box 15. After inserting the insert box 7 into the separation box 3, the wrench 20 is released, and the spring 16 pushes the pin head 18 into the pin groove to lock and fix the box cover 8. When the filter layer 9 needs to be cleaned, the wrench 20 is simply pulled to release the fixing of the box cover 8, and the insert box 7 can be easily pulled out from the separation box 3 for cleaning. The overall operation is simple and convenient, and the filter layer 9 and filter screen 10 can be quickly disassembled and cleaned, with high efficiency.
[0035] Please see Figures 1-4 The partition 12 is provided with a guide pipe 21, the separation box 3 is provided with an oil drain pipe 22, the base 1 is fixedly installed with an oil collection box and connected to the oil drain pipe 22, the partition 12 and the separation box 3 are both fixedly installed with inclined platforms 23, and the partition 12 is fixedly provided with an air guide pipe 24.
[0036] Specifically, when collecting the separated engine oil, the engine oil intercepted by the filter layer 9 and filter screen 10 on the baffle 12 is collected at the guide pipe 21 and discharged into the oil drain pipe 22, while the engine oil intercepted by the filter layer 9 and filter screen 10 below the baffle 12 is directly collected at the oil drain pipe 22 and discharged. Thus, the engine oil is collected and stored through the oil collection box, which facilitates the recycling of the engine oil in the later stage.
[0037] In summary, when using the overall equipment:
[0038] When separating the oil and gas in the refrigerant gas discharged from the compressor, the gas entering the separation chamber 3 can be filtered and separated twice by inserting the boxes 7 on both sides of the partition 12, thereby intercepting and separating the oil and gas carried by the refrigerant gas to the greatest extent. The separated gas is discharged from the exhaust pipe 5. The oil and gas separation effect is good. The sealing effect of the box 7 is improved by the sealing ring 13 installed on the box cover 8, preventing the refrigerant gas from leaking out of the opening.
[0039] When installing the insert box 7, pull the wrench 20 to compress the spring 16, and retract the pin head 18 into the fixing box 15. After inserting the insert box 7 into the separation box 3, release the wrench 20. The spring 16 pushes the pin head 18 into the pin groove to lock and fix the box cover 8. When it is necessary to clean the filter layer 9, simply pull the wrench 20 to release the fixing of the box cover 8, and easily pull the insert box 7 out of the separation box 3 for cleaning. The overall operation is simple and convenient, and the filter layer 9 and filter screen 10 can be quickly disassembled and cleaned with high efficiency.
[0040] When collecting the separated engine oil, the engine oil intercepted by the filter layer 9 and filter screen 10 on the baffle 12 is collected at the guide pipe 21 and discharged into the oil drain pipe 22. The engine oil intercepted by the filter layer 9 and filter screen 10 below the baffle 12 is directly collected at the oil drain pipe 22 and discharged. Thus, the engine oil is collected and stored through the oil collection box, which facilitates the recycling of engine oil in the later stage.
[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. An oil-gas separator, comprising a base (1), a support column (2), and a separation box (3), wherein the support column (2) is fixedly mounted on the base (1), and the separation box (3) is fixedly mounted on the support column (2), characterized in that: The separation box (3) is provided with an air inlet pipe (4) and an exhaust pipe (5). The separation box (3) is provided with a separation mechanism, which includes a bracket (6), a box (7), a cover (8), a filter layer (9), and a filter screen (10). The bracket (6) is fixedly installed in the separation box (3). The separation box (3) is provided with an opening. The end of the box (7) passes through the opening and is inserted into the separation box (3). The box (7) is in contact with the bracket (6). The cover (8) is fixedly installed on the box (7). The filter layer (9) and the filter screen (10) are both fixedly installed in the box (7). A limiting strip (11) is fixedly installed in the separation box (3). The box (7) is located between the limiting strip (11) and the bracket (6). A partition (12) is provided in the separation box (3). The partition (12) is provided with a vent hole. The separation mechanism is provided in two sets and is located on both sides of the partition (12).
2. A gas-oil separator according to claim 1, characterized in that: A sealing ring (13) is fixedly installed on the lid (8), and the sealing ring (13) is in contact with the separation box (3).
3. An oil-gas separator according to claim 1, characterized in that: The bracket (6) is provided with a sliding groove, and the insert box (7) is provided with a sliding strip (14), which is slidably installed in the sliding groove.
4. An oil-gas separator according to claim 1, characterized in that: The separation box (3) is provided with a clamping mechanism, which includes a fixing box (15), a spring (16), a horizontal plate (17) and a pin (18). The fixing box (15) is fixedly installed on the separation box (3) and on the same side as the opening. The spring (16) is fixedly installed inside the fixing box (15). The horizontal plate (17) is fixedly installed at one end of the spring (16). The pin (18) is slidably installed inside the fixing box (15) and one end of the pin (18) extends out of the fixing box (15). The pin (18) is fixedly connected to the end of the horizontal plate (17). The box cover (8) is provided with a pin groove corresponding to the pin (18).
5. A gas-oil separator according to claim 4, characterized in that: A slide rod (19) is fixedly installed inside the fixed box (15), and the middle part of the horizontal plate (17) is slidably installed on the slide rod (19). A wrench (20) is provided on the horizontal plate (17).
6. A gas-oil separator according to claim 1, characterized in that: A guide pipe (21) is provided on the partition (12), an oil drain pipe (22) is provided on the separation box (3), and an oil collection box is fixedly installed on the base (1) and connected to the oil drain pipe (22).
7. A gas-oil separator according to claim 1, characterized in that: Inclined platforms (23) are fixedly installed inside both the partition (12) and the separation box (3).
8. An oil-gas separator according to claim 1, characterized in that: An air duct (24) is fixedly installed on the partition (12).