An oil-gas separator based on a structure for suppressing oil disturbance noise

Abstract

The present invention discloses an oil-gas separator based on a structure for suppressing oil disturbance noise. The structure for suppressing oil disturbance noise is provided with a through hole and a groove at the lower part of a support rod, so that the deposited lubricating oil can flow into the lubricating oil hole from the through hole and the groove. The structure automatically adjusts the flow cross-sectional area of ​​the lubricating oil as the lubricating oil level in the oil-gas separator changes, changes the lubricating oil discharge amount, controls the lubricating oil level, realizes the dynamic balance of the lubricating oil level, and suppresses the oil disturbance noise induced by the lubricating oil level fluctuation in the oil-gas separator.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid machinery noise reduction, and relates to an oil-gas separator based on a structure for suppressing disturbing oil noise. Background Art

[0002] The compressor exhaust contains a small amount of lubricating oil, which enters the oil-gas separator through the exhaust pipe for oil-gas separation. The separated gas is discharged from the oil-gas separator into the gas system. The separated lubricating oil is stored at the bottom of the oil-gas separator and discharged from the oil-gas separator into the oil system under pressure to achieve recycling. Due to changes in the operating conditions of the compressor, the content of lubricating oil in the exhaust changes, and the content of the separated lubricating oil also changes accordingly, causing the liquid level of the lubricating oil at the bottom of the oil-gas separator to fluctuate, inducing oil disturbance noise. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an oil-gas separator based on a structure for suppressing oil disturbance noise, so as to solve the problem that as the lubricating oil content in the exhaust gas changes, the liquid level height of the lubricating oil at the bottom of the oil-gas separator fluctuates, inducing oil disturbance noise.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An oil-gas separator based on a structure for suppressing oil disturbance noise comprises a cylinder, the lower end of which is connected to a base; a coaxial support positioning rod is arranged in the cylinder, the upper end of which is connected to a floating plate, and the floating plate and the cylinder are clearance-matched; a plurality of lubricating oil channels are opened on the floating plate; porous materials are arranged on the upper and lower surfaces of the floating plate;

[0006] The center of the base is provided with a coaxial upper groove, a lower groove and a base oil drain hole from top to bottom; the diameter of the upper groove is larger than the diameter of the lower groove;

[0007] The lower part of the support positioning rod is provided with a circle of integrally connected bosses around the circumference, and a plurality of horizontal through holes are opened on the side wall of the bosses;

[0008] A coaxial lubricating oil hole is opened upward on the lower end surface of the supporting positioning rod, and the horizontal through hole is connected to the lubricating oil hole;

[0009] The lower end of the support positioning rod is provided with a plurality of grooves around the circumference, and the grooves are connected with the lubricating oil hole;

[0010] When the lubricating oil level in the oil-gas separator is low, the lower end of the support positioning rod is inserted into the lower groove, the support positioning rod and the lower groove are clearance-matched, and the boss is inserted into the upper groove;

[0011] When the lubricating oil level in the oil-gas separator is high, the groove protrudes from the lower groove.

[0012] A further improvement of the present invention is:

[0013] Preferably, the support and positioning rod comprises a coaxial support rod and a liquid level rod that are integrally connected, and the boss is arranged between the support rod and the liquid level rod;

[0014] The upper end of the support rod is threadedly connected to the center of the floating plate, and the lower end of the liquid level rod is inserted into the lower groove.

[0015] Preferably, the diameter of the boss is larger than the diameter of the liquid level rod, and the diameter of the boss is larger than the diameter of the support rod.

[0016] Preferably, the floating plate comprises a central column, the upper end of the central column is integrally connected with an annular cavity, and the interior of the annular cavity is a cavity.

[0017] Preferably, a plurality of lubricating oil channels are provided at the connection between the central column and the annular cavity, and the lubricating oil channels are equally divided around the circumference of the central column.

[0018] Preferably, the edge of the annular cavity and the edge of the porous material are wrapped together by a ferrule.

[0019] Preferably, the horizontal through holes are equally divided around the circumference of the boss, and the number of the horizontal through holes is 1 to 10.

[0020] Preferably, the oil drain hole of the base is connected to an oil drain pipe.

[0021] Preferably, the effective flow area of ​​the horizontal through hole is 30% to 70% of the cross-sectional area of ​​the oil drain pipe; the effective flow area of ​​the groove is 150% to 300% of the cross-sectional area of ​​the oil drain pipe.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention discloses an oil-gas separator based on a structure for suppressing disturbing oil noise. The noise suppression structure is provided with a through hole and a groove at the lower part of a support rod, and the deposited lubricating oil can flow from the through hole mixed groove into the lubricating oil hole. The support positioning rod is supported and positioned by the cooperation between the lower end and the lower groove, and the boss and the upper groove, so that the support positioning rod can float when the amount of lubricating oil is large, and the groove can be used for oil drainage. The structure automatically adjusts the flow cross-sectional area of ​​the lubricating oil as the lubricating oil level in the oil-gas separator changes, changes the amount of lubricating oil discharged, controls the lubricating oil level, realizes the dynamic balance of the lubricating oil level, and suppresses the disturbing oil noise induced by the fluctuation of the lubricating oil level in the oil-gas separator. After the separator uses the above-mentioned structure for suppressing disturbing oil noise, the amount of oil in the cylinder can be maintained at a more appropriate level. The upper and lower surfaces of the separator are both provided with porous materials. When using the separator, the best state is that the porous material on the lower surface of the floating plate is always immersed in the lubricating oil surface at the bottom of the oil-gas separator, while the porous material on the upper surface of the floating plate should not be immersed in the lubricating liquid. This can suppress the oil disturbance noise caused by the fluctuation of the lubricating oil surface and reduce the noise of the oil-gas separator.

[0024] Further analysis shows that, on the one hand, the fluctuation of the liquid level will generate bubbles, and the burst of bubbles will generate noise. On the other hand, the fluctuation of the liquid level will impact the structural parts and generate vibration radiation noise. They are all induced by the fluctuation of the liquid level and are collectively referred to as oil disturbance noise. It is the preferred state that the lower part of the porous material just touches the liquid surface or is partially immersed in the liquid surface. On the one hand, due to the existence of the porous material, bubbles are not easy to generate. Even if a small amount of bubbles are generated, they are easily absorbed by the porous material. On the other hand, when the porous material is immersed in the lubricating oil liquid surface, the fluctuation of the liquid surface can be reduced. On the contrary, if the lubricating oil liquid level exceeds the upper part of the porous material, bubbles and liquid level fluctuations will continue to occur. At this time, the structure for suppressing oil disturbance noise is immersed in the lubricating oil, just like a solid structure, which only increases the liquid level height, but loses a certain effect on reducing oil disturbance noise.

[0025] Furthermore, the supporting positioning rod is divided into an upper supporting rod and a lower liquid level rod. The supporting rod is used to connect with the floating plate, and the lower end of the liquid level rod is used to cooperate with the groove to achieve flow control.

[0026] Furthermore, the diameter of the boss is larger than the diameter of the liquid level rod, so that when the amount of lubricating oil is small, the lower surface of the boss fits with the upper surface of the lower groove, blocking part of the oil from entering the lower groove, so that the lubricating oil can only flow into the lubricating oil hole through the horizontal through hole on the boss.

[0027] Furthermore, the annular cavity of the floating plate is a cavity, so that when the amount of lubricating oil is small, the volume of the annular cavity of the floating plate immersed in the lubricating oil decreases, the buoyancy decreases, the oil disturbance noise structure is suppressed from moving downward, and the lower end of the liquid level rod is inserted in the lower groove, and the lubricating oil can only be discharged to the oil drain hole through the through hole on the boss. Since the effective flow area of ​​the through hole on the boss is small, the lubricating oil at the bottom of the oil separator barrel gradually increases, the liquid level rises, the volume of the annular cavity of the floating plate immersed in the lubricating oil increases, the buoyancy increases, the oil disturbance noise structure is suppressed from moving upward, and the groove at the bottom of the support rod will protrude from the lower groove, and the lubricating oil can be discharged from the through hole on the boss and the groove at the bottom of the support rod at the same time, increasing the oil drainage cross-sectional area, and the lubricating oil level drops, achieving dynamic balance of the lubricating oil level.

[0028] Furthermore, a lubricating oil channel is provided on the annular cavity, so that the lubricating oil can flow from the upper part of the floating plate to the lower part.

[0029] Furthermore, the upper surface and the lower surface of the annular cavity are both provided with porous materials, and the porous materials are always immersed in the lubricating oil surface at the bottom of the oil-gas separator and can absorb bubbles in the lubricating oil.

[0030] Furthermore, the edge of the annular cavity and the edge of the porous material are wrapped together by the ferrule, which can prevent the porous material from moving easily on the annular cavity on the one hand, and on the other hand, the ferrule can seal the gap between the annular cavity and the cylinder.

[0031] Furthermore, the horizontal through holes are equally spaced around the boss, so that the number and positions of the through holes can meet the demand for lubricating oil to flow out.

[0032] Furthermore, the effective flow area of ​​the horizontal through hole and the groove is limited to ensure the outflow of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of a structure for suppressing oil disturbance noise according to the present invention.

[0034] Figure 2 for Figure 1 A cross-sectional view of a structure for suppressing oil disturbance noise.

[0035] Figure 3 The diagram is a structural diagram of an oil-gas separator having a structure for suppressing oil disturbance noise.

[0036] Figure 4 for Figure 3 A cross-sectional view of an oil-gas separator having a structure for suppressing oil disturbance noise.

[0037] Figure 5 The figure is a structural schematic diagram of an oil-gas separator base.

[0038] In the figure: 1-structure for suppressing oil disturbance noise, 11-support positioning rod, 1101-support rod, 1102-boss, 1103-liquid level rod, 1104-horizontal through hole, 1105-groove, 1106-lubricating oil hole, 1107-positioning hole, 12-floating plate, 1201-annular cavity, 1202-threaded hole, 1203-lubricating oil channel, 13-porous material, 14-ferrule, 21-cylinder, 22-base, 2201-upper groove, 2202-lower groove, 2203-base oil drain hole, 2204-threaded hole, 23-upper cover, 24-support foot, 25-sight glass, 26-flange, 27-intake pipe, 28-internal insert, 29-oil drain pipe. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0040] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Reference Figure 1-5 ,in, Figure 1 It is a schematic structural diagram of a structure for suppressing oil disturbance noise according to the present invention. Figure 2 for Figure 1 A cross-sectional view of a structure for suppressing oil disturbance noise. Figure 3 The diagram is a schematic diagram of the structure of an oil-gas separator having a structure for suppressing oil disturbance noise. Figure 4 for Figure 3 A cross-sectional view of an oil-gas separator having a structure for suppressing oil disturbance noise. Figure 5 The figure is a structural schematic diagram of an oil-gas separator base.

[0042] See also Figure 1 and Figure 2The present invention discloses an oil-gas separator based on a structure for suppressing disturbing oil noise. The main structure of the oil-gas separator includes a structure for suppressing disturbing oil noise 1, a cylinder 21, a base 22, an upper cover 23, a support leg 24, a sight glass 25, a flange 26, an air inlet pipe 27, an inner insert pipe 28 and an oil drain pipe 29. The upper cover 23 covers the upper end of the cylinder 21, an air inlet is provided in the upper cover 23, an air inlet is connected to the outer wall of the cylinder 21, a flange 26 is provided at the outer end of the air inlet pipe 27, the structure for suppressing disturbing oil noise 1 is installed inside the cylinder 21, a base 22 is installed at the bottom of the cylinder 21, and a sight glass 25 is provided on the side wall of the cylinder 21; the inner insert pipe 28 is connected to the air inlet in the upper cover 23, and the oil drain pipe 29 is connected to the base oil drain hole 2203 in the base 22. In the structure of the present invention, the core is realized by the cooperation between the oil disturbance noise suppression structure 1 and the base 22, so that the oil disturbance noise suppression structure 1 can float up and down, thereby achieving the effect of suppressing noise.

[0043] The oil disturbance noise suppression structure 1 mainly includes a supporting positioning rod 11 , a floating plate 12 , a porous material 13 and a ferrule 14 .

[0044] Specifically, the support positioning rod 11 includes a support rod 1101, a boss 1102, a liquid level rod 1103, a horizontal through hole 1104, a groove 1105, a lubricating oil hole 1106 and a positioning hole 1107. The upper end surface of the support rod 1101 and the boss 1102 are integrally connected, the liquid level rod 1103 and the lower end surface of the boss 1102 are integrally connected, and the support rod 1101, the boss 1102 and the liquid level rod 1103 are coaxially arranged. The diameter of the boss 1102 is larger than the diameter of the support rod 1101, the diameter of the boss 1102 is larger than the diameter of the liquid level rod 1103, and the side wall of the boss 1102 is provided with horizontal through holes 1104 around the circumference thereof, and the horizontal through holes 1104 are equally divided around the side wall of the boss 1102. A vertical positioning hole 1107 is provided on the boss 1102. The vertical positioning hole 1107 and the horizontal through hole 1104 are staggered and not connected internally. A lubricating oil hole 1106 is provided in the vertical direction of the liquid level rod 1103. The lubricating oil hole 1106 is opened upward from the lower end surface of the liquid level rod 1103. The liquid level rod 1103 is provided with a groove 1105 around its circumference. The groove 1105 is a groove opened upward from the lower end surface of the liquid level rod 1103. The horizontal through hole 1104 and the groove 1105 are arranged up and down in the vertical direction. The horizontal through hole 1104 and the groove 1105 are both connected to the lubricating oil hole 1106. The length of the support positioning rod or the position where the floating plate is located at the cylinder height is generally 10% to 40% of the cylinder height, depending on the oil circuit system design of the compressor.

[0045] Preferably, the number of horizontal through holes 1104 is 1 to 10, and the total effective flow area of ​​the horizontal through holes 1104 is 30% to 70% of the cross-sectional area of ​​the oil drain pipe 29. The number of grooves 1105 is 1 to 8, and the total effective flow area of ​​the grooves 1105 is 150% to 300% of the cross-sectional area of ​​the oil drain pipe 29. Further, the height of the liquid level is adjusted by setting the flow area of ​​the horizontal through holes and the effective flow area of ​​the grooves, so that the liquid level can reach the optimal height, such as the porous material on the lower surface of the floating plate is always immersed in the lubricating oil liquid surface at the bottom of the oil-gas separator, while the porous material on the upper surface of the floating plate should not be immersed in the lubricating liquid.

[0046] See also Figure 5 The base 22 is provided with an upper groove 2201, a lower groove 2202, a base oil drain hole 2203 and a threaded hole 2204. The base 22 is a disc structure, and the upper groove 2201, the lower groove 2202 and the base oil drain hole 2203 are coaxially and connected from top to bottom at the center point thereof. The diameter of the upper groove 2201 is larger than the diameter of the lower groove 2202, and the diameter of the lower groove 2202 is larger than the diameter of the base oil drain hole 2203. The base oil drain hole 2203 is connected to the outside. Four threaded holes 2204 are equally spaced around the circumference of the outer side of the upper groove 2201; the upper groove 2201 is coaxially assembled with the liquid level rod 1103, and the threaded hole 2204 and the positioning hole 1107 are positioned by bolt connection, so that the support rod 1101 and the base 22 are connected; the bolts are used to limit the connection between the boss 1102 and the base 22, that is, when the entire support rod 1101 floats to a certain position, it can be limited by the bolts to prevent the entire support rod 1101 from floating too high.

[0047] In the above structure, the liquid level rod 1103 is coaxial with the lower groove 2202, and the outer diameter of the liquid level rod 1103 is equal to the diameter of the lower groove 2202. When assembled together, the liquid level rod 1103 and the lower groove 2202 are in clearance fit, and the lubricating oil does not pass through the lower groove 2202, but flows into the lubricating oil hole 1106 through the groove 1105. The boss 1102 is coaxial with the upper groove 2201, and the diameter of the boss 1102 is smaller than the diameter of the upper groove 2201. The lubricating oil in the gap between the lubricating oil boss 1102 and the upper groove 2201 flows into the lubricating oil hole 1106 through the horizontal through hole 1104.

[0048] When the lubricating oil level is low, the lubricating oil is connected to the lubricating oil hole 1106 through the gap between the boss 1102 and the upper groove 2201 through the horizontal through hole 1104. Since the effective flow area of ​​the horizontal through hole 1104 on the boss 1102 is small, the lubricating oil at the bottom of the oil separator gradually increases and the liquid level rises. When the lubricating oil level rises, the volume of the annular cavity of the floating plate 12 immersed in the lubricating oil increases, the buoyancy increases, and the entire structure 1 for suppressing disturbing oil noise slightly floats under the buoyancy of the lubricating oil. At this time, the groove 1105 will protrude from the lower groove 2202 and communicate with the gap between the boss 1102 and the upper groove 2201. Therefore, in addition to passing through the horizontal through hole 1104, the lubricating oil can also be connected to the lubricating oil hole 1106 through the groove 1105, which is equivalent to increasing the oil discharge cross-sectional area of ​​the lubricating oil, accelerating the oil discharge speed, reducing the oil level, and achieving dynamic balance. The design of the groove 1105 is also to quickly adjust the oil discharge cross-sectional area and accelerate the oil discharge speed.

[0049] Furthermore, the circumferential clearance of the oil disturbance noise suppression structure 1 and the inner wall clearance of the cylinder 21 enable the lubricating oil to flow downward through the lubricating oil channel 1203, and the sleeve 14 plays a certain buffering role, reducing the contact vibration noise between the oil disturbance noise suppression structure 1 and the cylinder 21.

[0050] Furthermore, the floating plate 12 includes an annular cavity 1201 and a central column 1204; the diameter of the central column 1204 is greater than the diameter of the liquid level rod 1103, and the inner surface of the annular cavity 1201 and the circumferential outer wall of the central column 1204 are integrally connected; the interior of the annular cavity 1201 is a cavity, and the cavity is surrounded by the cavity plate on all sides, which is a hollow ring structure, so that when floating, the entire oil disturbance noise suppression structure 1 floats upward. The lower end surface of the central column 1204 is provided with a threaded hole 1202 inwardly, and the outer wall of the central column 1204 is provided with lubricating oil channels 1203 equally divided around its circumference, and the lubricating oil channels 1203 penetrate the upper and lower surfaces of the central column 1204; the threaded hole 1202 is tightly connected to the thread on the support rod 1101, and the annular cavity 1201 and the lubricating oil channel 1203 are sealed and isolated.

[0051] Preferably, the floating plate 12 is made of low-density material, such as light alloys such as aluminum alloy and functional plastics such as polytetrafluoroethylene, to reduce its own gravity. The material of the floating plate 12 can be selected according to the actual amount of oil to ensure that the mass gravity applied by the floating plate 12 to the supporting positioning rod 11 can be balanced with the buoyancy received, that is, the amount of the liquid level rod 1103 protruding from the lower groove 2202 can be adjusted, thereby adjusting the amount of lubricating oil flowing out. Therefore, the set mass of the floating plate 12 can also be coordinated with the number and area of ​​the groove 1105, and the number and area of ​​the horizontal through hole 1104, to adjust the total amount of lubricating oil discharged.

[0052] The upper and lower surfaces of the annular cavity 1201 are both attached with porous materials 13 to absorb lubricating oil bubbles, which are in direct contact with the bottom lubricating oil stored in the oil-gas separator to absorb bubbles on the lubricating oil surface. The circumferential edge of the annular cavity 1201 and the circumferential edge of the porous material 13 are wrapped with a ferrule 14.

[0053] Preferably, the porosity of the porous material 13 is greater than 50%, such as foamed aluminum and steel wire mesh, etc., which is used to absorb bubbles on the surface of the lubricating oil and improve the oil disturbance noise of the lubricating oil. The ferrule 14 is wrapped around the circumferential edge of the floating plate 12 and the porous material 13, and the ferrule 14 is made of rubber and / or functional plastic.

[0054] The support rod 1101 on the support positioning rod 11 is tightly connected to the threaded hole 1202 on the floating plate 12, and the lubricating oil enters the lubricating oil hole 1106 through the horizontal through hole 1104 and / or the groove 1105, and is discharged from the oil-gas separator from the base oil drain hole 2203. The groove 1105 plays a supporting role while allowing the lubricating oil to flow into the lubricating oil hole 1106.

[0055] See also Figure 3 and Figure 4 One of the embodiments disclosed in the present invention is to disclose an oil-gas separator including a structure for suppressing oil disturbance noise.

[0056] The working process of the present invention is:

[0057] The oil-gas mixture enters the cavity mainly composed of the cylinder 21, the base 22 and the upper cover 23 from the flange 26 and the air inlet pipe 27 for oil-gas separation. The separated gas is discharged from the upper cover 23 into the gas circuit system, and the separated lubricating oil is first stored at the bottom of the cylinder 21 through the lubricating oil channel 1203, and then discharged into the oil circuit system through the oil drain pipe 29.

[0058] When the lubricating oil level rises, the volume of the oil-disturbance noise suppression structure 1 immersed in the lubricating oil level increases, the buoyancy increases, the oil-disturbance noise suppression structure 1 moves upward, the effective flow area of ​​the lubricating oil through the horizontal through hole 1104 and / or the groove 1105 increases, the oil discharge volume increases, and the lubricating oil level drops. When the lubricating oil level drops, the volume of the oil-disturbance noise suppression structure 1 immersed in the lubricating oil level decreases, the buoyancy decreases, the oil-disturbance noise suppression structure 1 moves downward, the liquid level rod 1103 falls into the lower groove 2202, and the boss 1102 falls into the upper groove 2201. At this time, the effective flow area of ​​the lubricating oil through the horizontal through hole 1104 and / or the groove 1105 decreases, the oil discharge volume slows down, and the lubricating oil level rises. By designing the relative positions of the horizontal through hole 1104 and the groove 1105 in the vertical direction of the support positioning rod 11, the liquid level of the lubricating oil is controlled, the dynamic balance of the lubricating oil level is achieved, and the oil-disturbance noise induced by the fluctuation of the lubricating oil level is suppressed.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-gas separator based on a structure for suppressing oil disturbance noise, characterized in that: It comprises a cylinder (21), the lower end of which is connected to a base (22); a coaxial support positioning rod (11) is provided in the cylinder (21), the upper end of which is connected to a floating plate (12), the floating plate (12) and the cylinder (21) are clearance-matched; a plurality of lubricating oil channels (1203) are provided on the floating plate (12); and porous materials (13) are provided on the upper and lower surfaces of the floating plate (12); An upper groove (2201), a lower groove (2202) and a base oil drain hole (2203) are provided in sequence from top to bottom in a coaxial manner at the center of the base (22); the diameter of the upper groove (2201) is greater than the diameter of the lower groove (2202); The lower part of the supporting positioning rod (11) is provided with a circle of integrally connected bosses (1102) around the circumference, and a plurality of horizontal through holes (1104) are provided on the side wall of the bosses (1102); A coaxial lubricating oil hole (1106) is opened upward on the lower end surface of the supporting positioning rod (11), and the horizontal through hole (1104) is connected to the lubricating oil hole (1106); The lower end of the supporting positioning rod (11) is provided with a plurality of grooves (1105) around the circumference, and the grooves (1105) are connected to the lubricating oil hole (1106); When the lubricating oil level in the oil-gas separator is low, the lower end of the support positioning rod (11) is inserted into the lower groove (2202), the support positioning rod (11) and the lower groove (2202) are clearance-matched, and the boss (1102) is inserted into the upper groove (2201); When the lubricating oil level in the oil-gas separator is high, the groove (1105) protrudes from the lower groove (2202); The supporting and positioning rod (11) comprises a coaxial supporting rod (1101) and a liquid level rod (1103) which are integrally connected, and the boss (1102) is arranged between the supporting rod (1101) and the liquid level rod (1103); The upper end of the support rod (1101) is threadedly connected to the center of the floating plate (12), and the lower end of the liquid level rod (1103) is inserted into the lower groove (2202); The diameter of the boss (1102) is greater than the diameter of the liquid level rod (1103), and the diameter of the boss (1102) is greater than the diameter of the support rod (1101); The floating plate (12) comprises a central column (1204), the upper end of the central column (1204) is integrally connected with an annular cavity (1201), and the interior of the annular cavity (1201) is a hollow cavity; A plurality of lubricating oil channels (1203) are provided at the connection between the central column (1204) and the annular cavity (1201), and the lubricating oil channels (1203) are equally divided around the circumference of the central column (1204).

2. The oil-gas separator based on the structure for suppressing oil disturbance noise according to claim 1 is characterized in that: The edge of the annular cavity (1201) and the edge of the porous material (13) are jointly wrapped by the ferrule (14).

3. The oil-gas separator based on the structure for suppressing oil disturbance noise according to claim 1 is characterized in that: The horizontal through holes (1104) are equally spaced around the circumference of the boss (1102), and the number of the horizontal through holes (1104) is 1 to 10.

4. The oil-gas separator based on the structure for suppressing oil disturbance noise according to any one of claims 1 to 3, characterized in that: The base oil drain hole (2203) is connected to an oil drain pipe (29).

5. The oil-gas separator based on the structure for suppressing oil disturbance noise according to claim 4 is characterized in that: The total effective flow area of ​​the horizontal through holes (1104) is 30% to 70% of the cross-sectional area of ​​the oil discharge pipe (29); the total effective flow area of ​​the groove (1105) is 150% to 300% of the cross-sectional area of ​​the oil discharge pipe (29).

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