A compressed air oil-water separator

By introducing a guide block, a collection chamber, and a rotating sealing strip into the compressed air oil-water separator, the problem of dirt stains on the inner wall of the tank is solved, enabling the inner wall of the tank to be cleaned at any time, improving separation efficiency and purification quality, and extending the equipment life.

CN116139598BActive Publication Date: 2026-05-05ZHEJIANG GUTE PNEUMATIC MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG GUTE PNEUMATIC MACHINERY
Filing Date
2023-03-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing compressed air oil-water separators with annular rotary structures are prone to developing stains on the inner wall of the tank due to temperature changes, leading to secondary pollution of the compressed air. This results in long cleaning times, and rapid pressure changes under high humidity conditions reduce separation efficiency and tank lifespan.

Method used

A structure including a pressure tank, a collection tank, a sealing strip, an impeller, and a paddle is designed. Through the combination of a guide block, a through hole, and a collection chamber, liquid is guided and collected. Combined with the rotating scraping of the sealing strip and the timed cutting of the paddle, the inner wall of the tank can be cleaned at any time, improving the oil-water separation efficiency and air purification quality.

Benefits of technology

This technology enables the compressed air oil-water separator to be cleaned of separated materials at any time, preventing dirt blockage, improving oil-water separation efficiency and air purification quality, and extending the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of inverter manufacturing technology, specifically to a compressed air oil-water separator. It includes a pressure tank and a collection tank. The inner wall of the pressure tank has a first through hole, into which a first collection chamber is fitted. The first collection chamber is connected to the pressure tank. A second collection chamber is located at the lower end of the first collection chamber, also connected to the pressure tank. The lower end of the second collection chamber is connected to the collection tank, and a valve is located at the lower end of the collection tank. A sealing strip is installed inside the pressure tank, and the sealing strip is slidably connected to a suction pipe. The suction pipe is fixedly connected to the bottom of the pressure tank and is connected to an air pump. This device, by setting a periodically rotating sealing strip, achieves the effect of cleaning the inner wall of the tank, effectively improving the efficiency of oil-water separation and the quality of air purification. Furthermore, the periodic rotation of the sealing strip actuates a paddle, causing the dirt in the first collection chamber to be periodically cut and cleaned, effectively preventing dirt from clogging the pipes.
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Description

Technical Field

[0001] This invention relates to the field of inverter manufacturing technology, and specifically to a compressed air oil-water separator. Background Technology

[0002] A compressed air oil-water separator is actually a gas-liquid separator for compressed air. It doesn't separate oil and water, but rather separates condensed water and oil impurities from compressed air, thus providing preliminary purification. The separated oil and water are discharged together through the drain port. Generally, there are no pressure restrictions, but the operating temperature should be at room temperature. The working principle of the QF gas-liquid separator is as follows: when compressed air enters the separator, it experiences a sharp change in flow direction and velocity. Centrifugal force separates oil droplets and water droplets, which are denser than compressed air. Common types include impact-type and rotary-type oil-water separators. After compressed air enters the separator housing through the inlet, the airflow is first blocked and impacted by baffles, then deflected downwards, and then rises upwards again, creating a rotary motion. This causes water and oil droplets to separate from the air under the action of centrifugal force and inertia, settling at the bottom of the housing. The oil and water droplets can be discharged by periodically opening the bottom valve. The preliminarily purified air is sent to the air storage tank from the outlet.

[0003] Existing compressed air oil-water separators, when using a ring-rotation structure, use baffles to block impacts and fold the water droplets downwards, then rise upwards again, creating a ring rotation. This causes water and oil droplets to separate from the air and settle at the bottom of the shell under the action of centrifugal force and inertial force. When collecting and discharging, it is only necessary to reduce the air pressure inside the tank to allow it to flow out naturally. Cleaning is also periodic, making it easy to formulate production plans and reducing the impact on work efficiency.

[0004] However, in actual use, even with periodic discharge, stains will still form on the inner wall of the tank due to temperature changes. This not only causes secondary pollution of the compressed air but also prolongs the subsequent cleaning time. Furthermore, periodic discharge is only suitable for air with a specified humidity level. When the air humidity exceeds the threshold and the time is too long, the liquid inside the tank can easily increase rapidly, leading to rapid changes in the air pressure inside the tank. This also reduces the centrifugal space of the compressed gas, further reducing the oil-water separation efficiency of the compressed air oil-water separator and the service life of the tank. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a compressed air oil-water separator that allows for the immediate cleaning of separated materials.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0007] This invention provides a compressed air oil-water separator, comprising a pressure tank and a collection tank. The inner wall of the pressure tank has a first through hole, and a first collection chamber is snapped into the first through hole. The first collection chamber is connected to the pressure tank. A second collection chamber is provided at the lower end of the first collection chamber, and the second collection chamber is connected to the pressure tank. The lower end of the second collection chamber is connected to the collection tank. A valve is provided at the lower end of the collection tank. A sealing strip is provided inside the pressure tank. The sealing strip is slidably connected to a suction pipe. The suction pipe is fixedly connected to the bottom end of the pressure tank. The suction pipe is connected to an air pump, and the suction end of the air pump is connected to the collection tank.

[0008] Furthermore, a guide block is provided at the bottom of the pressure tank, and several second through holes are provided near the inner wall of the bottom of the pressure tank. The second through holes correspond to the first through holes and are connected to the second collection chamber. By providing the guide block, all the liquid in the pressure tank is directed to the inner wall of the pressure tank. Then, by providing the second through holes, when all the liquid is directed to the inner wall of the pressure tank, it flows into the second collection chamber through the second through holes. The liquid in the second collection chamber is then collected by the collection tank and then discharged from the collection tank. Thus, the compressed air oil-water separator achieves the effect of cleaning the separated materials at any time.

[0009] Furthermore, a sealing layer is provided in the first through hole, and a third through hole is provided in the first collection chamber, which is connected to the second collection chamber. By providing a sealing layer, the connection between the first collection chamber and the pressure tank is well sealed, so that changes in the air pressure inside the pressure tank will not be affected by the first collection chamber. By providing a third through hole, the first collection chamber and the second collection chamber are connected, so that the liquid in the pressure tank flows into the second collection chamber through the first collection chamber, and then into the collection tank through the second collection chamber for collection. The liquid in the collection tank is then discharged. Thus, the compressed air oil-water separator can clean the separated materials at any time.

[0010] Furthermore, the outer wall of the pressure tank is provided with several fixing buckles, which are fastened by threads; by setting the fixing buckles, the first collection chamber is fixedly connected to the pressure tank, and the first collection chamber will not be affected when the air pressure inside the pressure tank changes.

[0011] Furthermore, a fourth through hole is provided at both the upper and lower ends of the second collection chamber, and the fourth through hole connects the pressure tank and the collection tank; by providing the fourth through hole, the liquid in the pressure tank can be directly collected through the second collection chamber, thereby further accelerating the collection of liquid in the pressure tank and effectively improving the efficiency of oil-water separation.

[0012] Furthermore, the sealing strip is fixedly connected to a sleeve via a connecting rod. The sleeve is connected to the extraction pipe, and an impeller is provided at the upper end of the sleeve. By setting the connecting rod and the sleeve, a sliding fit between the sealing strip and the extraction pipe is achieved. By setting the impeller, when the gas flows inside the pressure tank, the impeller rotates accordingly. The rotation of the impeller drives the sealing strip to rotate, thereby scraping the inner wall of the tank with the sealing strip, achieving the effect of cleaning the inner wall of the tank with the sealing strip, effectively improving the efficiency of oil-water separation and the quality of air purification.

[0013] Furthermore, a guide groove is provided at the lower end of the impeller; by providing the guide groove, when water or oil in the tank is carried to the bottom of the impeller, the impeller rotates and the guide groove cooperates to centrifuge the water or oil onto the inner wall of the tank, and then it is scraped off by the sealing strip, thereby achieving the cleaning of the inside of the tank.

[0014] Furthermore, a paddle is provided inside the first collection chamber. The paddle is fixedly connected to the first collection chamber by a torsion spring, and the paddle covers the third through hole. By providing the paddle, the dirt in the first collection chamber is periodically flowed into the second collection chamber, and the paddle cuts the dirt in the first collection chamber into smaller pieces, which is beneficial for cleaning.

[0015] Furthermore, the end face of the paddle away from the first collection chamber contacts the side wall of the sealing strip, and the width of the paddle is less than half the width of the first collection chamber; by setting the sealing strip to contact the paddle, the dirt in the first collection chamber is cut and cleaned at regular intervals, effectively preventing dirt from clogging the pipe.

[0016] Furthermore, a support frame is provided at the bottom of the pressure tank; by providing this frame, the pressure tank can be installed, and preferably the support frame is fixedly connected to the mounting surface.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This device uses a periodically rotating sealing strip to clean the inner wall of the tank, effectively improving the efficiency of oil-water separation and the quality of air purification. The periodic rotation of the sealing strip also moves the paddle, which cuts and cleans the dirt in the first collection chamber at regular intervals, effectively preventing dirt from clogging the pipes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a top view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the pressure tank structure of the present invention;

[0024] Figure 5 This is a bottom view of the pressure tank structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the two collection chambers of the present invention;

[0026] Figure 7 This is a top view cross-sectional diagram of the first collection chamber of the present invention;

[0027] The labels in the diagram represent: 1. Pressure tank; 2. Collection tank; 3. First through hole; 4. First collection chamber; 5. Second collection chamber; 6. Valve; 7. Sealing strip; 8. Suction pipe; 9. Air pump; 10. Support frame; 11. Guide block; 12. Second through hole; 13. Third through hole; 14. Fixing buckle; 15. Fourth through hole; 16. Connecting rod; 17. Sleeve; 18. Impeller; 19. Guide groove; 20. Paddle. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0030] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0031] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0032] This invention provides a compressed air oil-water separator, as described above. Figure 1-7 The system includes a pressure tank 1 and a collection tank 2. Preferably, both the pressure tank 1 and the collection tank 2 are made of stainless steel to effectively prevent corrosion. The inner wall of the pressure tank 1 has a first through hole 3, and a first collection chamber 4 is inserted into the first through hole 3. The first collection chamber 4 is connected to the pressure tank 1. A second collection chamber 5 is provided at the lower end of the first collection chamber 4. The second collection chamber 5 is connected to the pressure tank 1. The lower end of the second collection chamber 5 is connected to the collection tank 2. A valve 6 is provided at the lower end of the collection tank 2. A sealing strip 7 is provided inside the pressure tank 1. The sealing strip 7 is slidably connected to a suction pipe 8. Preferably, the suction pipe 8 is connected to a suction device to achieve a suction effect. The suction pipe 8 is fixedly connected to the bottom end of the pressure tank 1. The suction pipe 8 is connected to an air pump 9. The suction end of the air pump 9 is connected to the collection tank 2.

[0033] Among them, reference Figure 1-7 A guide block 11 is provided at the bottom of the pressure tank 1, and several second through holes 12 are provided near the inner wall at the bottom of the pressure tank 1. The second through holes 12 correspond to the first through holes 3 and are connected to the second collection chamber 5. By providing the guide block 11, all the liquid in the pressure tank 1 is directed to the inner wall of the pressure tank 1. Then, by providing the second through holes 12, when all the liquid is directed to the inner wall of the pressure tank 1, it flows into the second collection chamber 5 through the second through holes 12. The liquid in the second collection chamber 5 is then collected by the collection tank 2 and then discharged. Thus, the compressed air oil-water separator can clean the separated materials at any time.

[0034] Among them, reference Figure 1-7 A sealing layer is provided in the first through hole 3, and a third through hole 13 is provided in the first collection chamber 4, which is connected to the second collection chamber 5. By providing a sealing layer, the connection between the first collection chamber 4 and the pressure tank 1 is well sealed, so that the pressure change in the pressure tank 1 will not be affected by the first collection chamber 4. By providing the third through hole 13, the first collection chamber 4 is connected to the second collection chamber 5, so that the liquid in the pressure tank 1 flows into the second collection chamber 5 through the first collection chamber 4, and then into the collection tank 2 through the second collection chamber 5 for collection. The liquid in the collection tank 2 is then discharged. Thus, the compressed air oil-water separator can clean the separated materials at any time.

[0035] Among them, reference Figure 1-7The outer wall of the pressure tank 1 is provided with several fixing buckles 14, which are fastened by threads. By setting the fixing buckles 14, the first collection chamber 4 and the pressure tank 1 are fixedly connected, and the first collection chamber 4 will not be affected when the air pressure inside the pressure tank 1 changes.

[0036] Among them, reference Figure 1-7 The second collection chamber 5 is provided with a fourth through hole 15 at both the upper and lower ends. The fourth through hole 15 connects the pressure tank 1 and the collection tank 2. By providing the fourth through hole 15, the liquid in the pressure tank 1 can be directly collected through the second collection chamber 5, thereby further accelerating the collection of liquid in the pressure tank 1 and effectively improving the efficiency of oil-water separation.

[0037] Among them, reference Figure 1-7 The sealing strip 7 is fixedly connected to the sleeve 17 via the connecting rod 16. The sleeve 17 is connected to the suction pipe 8, and an impeller 18 is provided at the upper end of the sleeve 17. By setting the connecting rod 16 and the sleeve 17, the sealing strip 7 and the suction pipe 8 can be slidably engaged. By setting the impeller 18, when the gas flows in the pressure tank 1, the impeller 18 rotates accordingly. The rotation of the impeller 18 will drive the sealing strip 7 to rotate, thereby enabling the sealing strip 7 to scrape the inner wall of the tank 1, thus achieving the effect of cleaning the inner wall of the tank 1 with the sealing strip 7, effectively improving the efficiency of oil-water separation and the quality of air purification.

[0038] Among them, reference Figure 1-7 The lower end of the impeller 18 is provided with a guide groove 19. By providing the guide groove 19, when water or oil in the tank 1 is carried to the bottom of the impeller 8, the impeller 8 rotates and the guide groove 19 cooperates to centrifuge the water or oil onto the inner wall of the tank 1, and then it is scraped off by the sealing strip 7, thereby cleaning the inside of the tank 1.

[0039] Among them, reference Figure 1-7 A paddle 20 is installed inside the first collection chamber 4. The paddle 20 is fixedly connected to the first collection chamber 4 by a torsion spring 21, and the paddle 20 covers the third through hole 13. By setting the paddle 20, the dirt in the first collection chamber 4 is periodically flowed into the second collection chamber 5, and the paddle 20 cuts the dirt in the first collection chamber 4 into smaller pieces, which is convenient for cleaning. The end face of the paddle 20 away from the first collection chamber 4 contacts the side wall of the sealing strip 7, and the width of the paddle 20 is less than half the width of the first collection chamber 4. By setting the sealing strip 7 to contact the paddle 20, the dirt in the first collection chamber 4 is periodically cut and cleaned, effectively preventing dirt from clogging the pipe.

[0040] Among them, reference Figure 1 A support frame 10 is provided at the bottom of the pressure tank 1; by setting this frame 10, the pressure tank 1 can be installed, and preferably the support frame 10 is fixedly connected to the mounting plane.

[0041] Working principle: When this device is working, it first fills the pressure tank 1 with air. Then, as the gas flows within the pressure tank 1, the impeller 18 rotates accordingly. When oil and water are separated, all the liquid in the pressure tank 1 is guided to the inner wall of the pressure tank 1. Then, through the second through-hole 12, the liquid flows into the second collection chamber 5. The liquid in the second collection chamber 5 is then collected by the collection tank 2. Subsequently, the rotation of the impeller 18 drives the sealing strip 7 to rotate, thereby scraping the inner wall of the tank 1, achieving the effect of cleaning the inner wall of the tank 1. This effectively improves the efficiency of oil-water separation and air separation. The device improves the quality of air purification by periodically rotating the sealing strip 7, which in turn moves the paddle 20, causing the dirt in the first collection chamber 4 to be cut and cleaned at regular intervals. This effectively prevents dirt from clogging the pipes. Finally, the liquid in the collection tank 2 is discharged. Thus, the compressed air oil-water separator achieves the effect of cleaning the separated materials at any time. The work is then completed. This device, by setting the periodically rotating sealing strip 7, achieves the effect of cleaning the inner wall of the tank 1 by the sealing strip 7, which effectively improves the efficiency of oil-water separation and the quality of air purification. The periodic rotation of the sealing strip 7 moves the paddle 20, causing the dirt in the first collection chamber 4 to be cut and cleaned at regular intervals, effectively preventing dirt from clogging the pipes.

[0042] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A compressed air oil-water separator, comprising a pressure tank (1) and a collection tank (2), characterized in that, The inner wall of the pressure tank (1) is provided with a first through hole (3), and a first collection chamber (4) is snapped into the first through hole (3). The first collection chamber (4) is connected to the pressure tank (1). A second collection chamber (5) is provided at the lower end of the first collection chamber (4). The second collection chamber (5) is connected to the pressure tank (1). A collection tank (2) is connected at the lower end of the second collection chamber (5). A valve (6) is provided at the lower end of the collection tank (2). A sealing strip (7) is provided inside the pressure tank (1). The sealing strip (7) is slidably connected to a suction pipe (8). The suction pipe (8) is fixedly connected to the bottom end of the pressure tank (1). The suction pipe (8) is connected to an air pump (9). The suction end of the air pump (9) is connected to the collection tank (2). The sealing strip (7) is fixedly connected to a sleeve (17) via a connecting rod (16). The sleeve (17) is connected to the air extraction pipe (8). An impeller (18) is provided at the upper end of the sleeve (17). A sealing layer is provided in the first through hole (3). The first collection chamber (4) has a third through hole (13). The third through hole (13) is connected to the second collection chamber (5). A lever (20) is provided in the first collection chamber (4). The lever (20) is fixedly connected to the first collection chamber (4) by a torsion spring (21). The lever (20) covers the third through hole (13). The end face of the lever (20) away from the first collection chamber (4) contacts the side wall of the sealing strip (7).

2. The compressed air oil-water separator according to claim 1, characterized in that, The bottom of the pressure tank (1) is provided with a flow guide block (11), and a number of second through holes (12) are provided near the inner wall of the bottom of the pressure tank (1). The second through holes (12) correspond to the first through holes (3), and the second through holes (12) are connected to the second collection chamber (5).

3. A compressed air oil-water separator according to claim 1, characterized in that, The outer wall of the pressure tank (1) is provided with several fixing buckles (14), which are fastened by threads.

4. A compressed air oil-water separator according to claim 2, characterized in that, The second collection chamber (5) is provided with a fourth through hole (15) at both the upper and lower ends, and the fourth through hole (15) connects the pressure tank (1) and the collection tank (2).

5. A compressed air oil-water separator according to claim 1, characterized in that, The impeller (18) is provided with a guide groove (19) at its lower end.

6. A compressed air oil-water separator according to claim 1, characterized in that, The width of the paddle (20) is less than half the width of the first collection chamber (4).

7. A compressed air oil-water separator according to claim 1, characterized in that, The bottom of the pressure tank (1) is provided with a support frame (10).

Citation Information

Patent Citations

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