High-temperature high-pressure sound-attenuating oil-gas separator

Abstract

The utility model relates to high temperature high pressure sound attenuation oil gas separator, including exhaust pipe, sleeve and oil return pipe, exhaust pipe sets up in oil return pipe, the front end of exhaust pipe penetrates the head of oil return pipe, the rear end of exhaust pipe is closed, the sleeve is sleeved in the outside of exhaust pipe, the rear end of sleeve is connected with the rear end of exhaust pipe and closes, the front end of sleeve and the inner wall of head exist gap, the gap exists between the pipe body of sleeve and the outer wall of exhaust pipe and the inner wall of oil return pipe, a plurality of air holes are provided on the pipe body of exhaust pipe. The design is through the path of prolonging airflow, makes airflow to be reduced speed and cooling, and the airflow of mixed gasification lubricating oil finally flows through oil return pipe, and most oil gas molecules carried in it are adsorbed by the inner wall of oil return pipe and the outer wall of sleeve, complete oil gas separation, realize the recycling of lubricating oil, greatly reduce the use cost of lubricating oil, and the noise of oil gas emission separation is low, realizes the design purpose of silencing and noise reduction.

Description

Technical Field

[0001] This utility model relates to the field of aviation component technology, and in particular to a high-temperature and high-pressure silencer oil-gas separator. Background Technology

[0002] Aviation lubricants are special lubricating media designed specifically for aircraft engines and instrumentation. They possess high-temperature stability, oxidation resistance, and extreme-pressure anti-wear properties, playing a core role in lubrication and thermal management within aviation systems. During test runs on sealed test benches, to simulate engine operation under high-temperature and high-pressure conditions, aviation lubricants atomize at 400 degrees Celsius and are discharged with the gas. Simultaneously, a pressure differential generates a storm (significant noise). In this process, complete oil-gas separation is difficult, inevitably resulting in some lubricating oil being discharged with the gas from the engine exhaust pipe and wasted. Aviation lubricants are expensive, costing over 300 yuan per liter. With an exhaust gas flow rate of 200 m³ / h, the atomized oil is carried away by the airflow, causing lubricating oil waste. Furthermore, at pressures of 0.3-0.48 MPa, the high exhaust gas velocity generates significant noise. To save on lubricating oil usage costs and reduce emission noise, improvements to the oil-gas separation process are needed. Utility Model Content

[0003] Therefore, it is necessary to provide a high-temperature, high-pressure, noise-reducing oil-gas separator to address the above problems.

[0004] A high-temperature, high-pressure silencer oil-gas separator includes an exhaust pipe, a sleeve, and a return oil pipe. The exhaust pipe is installed inside the return oil pipe, with its front end penetrating the end cap of the return oil pipe. The rear end of the exhaust pipe is closed. The sleeve is fitted over the exhaust pipe, and its rear end is connected to and sealed to the rear end of the exhaust pipe. There is a gap between the front end of the sleeve and the inner wall of the end cap. There are also gaps between the sleeve body and the outer wall of the exhaust pipe and the inner wall of the return oil pipe. Several air holes are provided on the body of the exhaust pipe.

[0005] Preferably, the vent is an oblique vent and is inclined toward the rear end of the exhaust pipe.

[0006] Preferably, the air holes are arranged in an alternating pattern along the axial direction of the exhaust pipe.

[0007] Preferably, the end cap is conical in shape.

[0008] Preferably, the inner wall of the return oil pipe is provided with a spiral guide groove.

[0009] Preferably, the sleeve is made of galvanized sheet.

[0010] The advantages of this utility model are as follows: By extending the airflow path, the airflow is slowed down and cooled. Finally, the airflow that mixes and vaporizes the lubricating oil flows through the return oil pipe. Most of the oil and gas molecules carried in the airflow are adsorbed by the inner wall of the return oil pipe and the outer wall of the sleeve, thus completing the oil-gas separation and realizing the recycling and reuse of lubricating oil. This greatly reduces the cost of using lubricating oil. In addition, the noise of oil-gas emission separation is low, achieving the design purpose of noise reduction. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of a high-temperature and high-pressure silencer oil-gas separator according to one embodiment;

[0012] Figure 2 This is a schematic diagram of an explosion of a high-temperature, high-pressure silencer oil-gas separator.

[0013] Figure 3 This is a cross-sectional view of a high-temperature, high-pressure silencer oil-gas separator. Detailed Implementation

[0014] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] like Figures 1-3As shown, the high-temperature and high-pressure silencer oil-gas separator includes an exhaust pipe 1, a sleeve 2, and a return oil pipe 3. The exhaust pipe 1 is installed inside the return oil pipe 3. The front end of the exhaust pipe 1 passes through the end cap 31 of the return oil pipe 3, and the rear end of the exhaust pipe 1 is closed. The sleeve 2 is sleeved on the outside of the exhaust pipe 1. The rear end of the sleeve 2 is connected to and closed with the rear end of the exhaust pipe 1. There is a gap between the front end of the sleeve 2 and the inner wall of the end cap 31. There is a gap between the body of the sleeve 2 and the outer wall of the exhaust pipe 1 and the inner wall of the return oil pipe 3. Several air holes 11 are provided on the body of the exhaust pipe 1. Specifically, in this embodiment, the exhaust pipe 1 is designed as a straight line, coaxial with the oil return pipe 3. The exhaust pipe 1 is inserted into the end cap 31 of the oil return pipe 3, and the rear end of the exhaust pipe 1 is closed. During exhaust, the lubricating oil mixed with vaporized oil enters from the front end of the exhaust pipe 1 and flows towards the rear end. During flow, the oil-gas mixture overflows from the vent 11 on the exhaust pipe 1 and enters the gap between the exhaust pipe 1 and the sleeve 2. The vent 11 can force the airflow to contract, reduce the airflow velocity, reduce noise, and when the airflow passes through the vent 11, it is easy to form turbulence, increasing frictional energy consumption. After the airflow enters the gap between the exhaust pipe 1 and the sleeve 2, because the rear end of the exhaust pipe 1 and the rear end of the sleeve 2 are closed, the flow direction of the airflow at the gap between the exhaust pipe 1 and the sleeve 2 is opposite to the flow direction inside the exhaust pipe 1. The airflow flows towards the end cap 31, is blocked and redirected by the inner wall of the end cap 31, and flows into the gap between the sleeve 2 and the return oil pipe 3, making the entire airflow path S-shaped. Without extending the overall length of the original separator, the airflow path is greatly extended, causing the airflow to be slowed down and cooled. Finally, when the airflow mixed with the vaporized lubricating oil flows through the return oil pipe 3, most of the oil and gas molecules carried in it are adsorbed by the inner wall of the return oil pipe 3 and the outer wall of the sleeve 2, completing the oil-gas separation and realizing the recycling and reuse of lubricating oil. This greatly reduces the cost of lubricating oil use, and the noise of oil-gas emission separation is low, achieving the design purpose of noise reduction. In this embodiment, the sleeve 2 is made of galvanized sheet, which is then rolled and welded into a round tube, resulting in low cost.

[0018] like Figure 3 As shown, the vent 11 is an oblique vent that is inclined toward the rear end of the exhaust pipe 1. When the oil and gas flow out from the oblique vent 11, they enter the gap between the sleeve 2 and the exhaust pipe 1 at a certain angle. All the oil and gas form a vortex between the sleeve 2 and the exhaust pipe 1, which makes the oil and gas fully contact the inner wall of the sleeve 2. Under the condition of temperature difference, some oil and gas molecules will be adsorbed by the inner wall of the sleeve 2, completing the primary oil and gas separation. When the end cap 31 is facing down, the oil and gas molecules adsorbed on the inner wall of the sleeve 2 gather in the end cap 31 and finally converge into the return oil pipe 3, completing the lubricating oil collection.

[0019] like Figures 2-3As shown, the air holes 11 are arranged in an alternating pattern along the axial direction of the exhaust pipe 1. The alternating arrangement of the air holes 11 makes it easier for the oil and gas flowing out of the air holes 11 to cross and collide with each other, swirling to form vortices, and making it easier to generate eddies.

[0020] like Figures 1-2 As shown, the end cap 31 is conical in shape.

[0021] like Figure 1 , 3 As shown, the inner wall of the return oil pipe 3 is provided with a spiral guide groove 32. The spiral guide groove 32 allows the oil and gas to rotate upward and extend the path. Under the action of temperature difference, the oil and gas molecules are more likely to be attached to the inner wall of the return oil pipe 3, and then converge downward along the spiral guide groove 32 into the end cap 31.

[0022] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-temperature, high-pressure, noise-reducing oil-gas separator, characterized in that: The device includes an exhaust pipe, a sleeve, and a return oil pipe. The exhaust pipe is installed inside the return oil pipe, with its front end penetrating the end cap of the return oil pipe. The rear end of the exhaust pipe is closed. The sleeve is fitted over the exhaust pipe, with its rear end connected to and sealed to the rear end of the exhaust pipe. There is a gap between the front end of the sleeve and the inner wall of the end cap. There are also gaps between the sleeve body and the outer wall of the exhaust pipe and the inner wall of the return oil pipe. The exhaust pipe body has several air holes.

2. The high-temperature, high-pressure silencer oil-gas separator as described in claim 1, characterized in that: The vent is an oblique vent, and it is inclined toward the rear end of the exhaust pipe.

3. The high-temperature, high-pressure silencer oil-gas separator as described in claim 2, characterized in that: The vents are arranged in an alternating pattern along the axial direction of the exhaust pipe.

4. The high-temperature, high-pressure silencer oil-gas separator as described in claim 1, characterized in that: The end cap is conical in shape.

5. The high-temperature, high-pressure silencer oil-gas separator as described in claim 1, characterized in that: The inner wall of the return oil pipe is provided with a spiral guide groove.

6. The high-temperature, high-pressure silencer oil-gas separator as described in claim 1, characterized in that: The sleeve is made of galvanized sheet.

Images