Oil-gas separator

Abstract

The utility model discloses an oil-gas separator which comprises a shell, the shell is provided with an inlet, a second outlet and a first outlet, the inner side wall of the shell is provided with a blocking piece, the blocking piece is at least arranged on the upper side of the first outlet, and the side, perpendicular to the upper side, of the first outlet is provided with a first baffle. The oil-gas separation device is arranged in the shell body; the exhaust pipe is connected with the first outlet in a sealed mode, and a gas collecting opening is formed in the part, located in the shell, of the exhaust pipe; the first outlet is provided with the blocking piece on the coming side of the rotation direction of the oil-gas separation device. According to the oil-gas separator, the baffle surrounding the first outlet is arranged on the inner side wall of the shell, so that liquid oil on the inner side wall is prevented from making contact with the exhaust pipe, and the liquid oil is prevented from entering the gas collecting opening of the exhaust pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fluid purification, concretely is an oil gas separator. BACKGROUND

[0002] The gas-liquid separator is a kind of separation device for realizing liquid removal using the principle that gas and liquid are separated from each other under the action of centrifugal force.The gas-liquid separator can be used to separate the gas-liquid mixture discharged by automobile engine.In the prior art, such as CN112870860A disclosed on June 1, 2021, the gas-liquid separator is provided with an air outlet pipe facing the gas-liquid separation unit to avoid the oil mist on the inner side wall of the shell from entering.However, in actual use, a small part of liquid oil separated will still flow into the air inlet of the air outlet pipe along the pipe wall, affecting the oil-gas separation effect. SUMMARY

[0003] In order to overcome the defects in the prior art, the utility model provides an oil gas separator, which is provided with a baffle around the first outlet on the inner side wall of the shell to avoid the liquid oil on the inner side wall from contacting the exhaust pipe, so that the liquid oil is prevented from entering the gas collecting port of the exhaust pipe.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of an oil gas separator, comprising:

[0005] A shell is provided with an inlet, a second outlet and a first outlet, the inner side wall of the shell is provided with a baffle, the baffle is at least provided on the upper side of the first outlet, and the first outlet is perpendicular to one side of the upper side;

[0006] An oil-gas separation device is arranged in the shell;

[0007] An exhaust pipe is sealingly connected with the first outlet, and the part of the exhaust pipe located in the shell is provided with a gas collecting port;

[0008] The first outlet is provided with the baffle on the side of the rotation direction of the oil-gas separation device.

[0009] By the above technical scheme, the baffle is arranged around the first outlet on the inner side wall of the shell to avoid the liquid oil on the inner side wall from contacting the exhaust pipe, so that the liquid oil is prevented from entering the gas collecting port of the exhaust pipe, and the oil-gas separation effect is ensured.

[0010] Further, the baffle includes a baffle plate, which is at least provided on the upper side of the first outlet and the two sides of the first outlet perpendicular to the upper side.The baffle plate can be made into a U shape, and the U-shaped baffle plate is inverted at the first outlet, so that the liquid oil on the inner side wall of the shell avoids the exhaust pipe.

[0011] Further, the height of the baffle plate in the direction perpendicular to the inner side wall of the shell is 2mm-6mm. The height of the baffle plate depends on the size of the oil-gas separator, the smaller the oil-gas separator, the smaller the height of the baffle plate, but at least 2mm is needed to ensure the ability to block the liquid oil; the larger the oil-gas separator, the larger the height of the baffle plate, but at most 6mm is enough to achieve the effect of completely blocking the liquid oil.

[0012] Further, the baffle plate is 2mm-10mm away from the exhaust pipe. The distance of the baffle plate from the exhaust pipe mainly depends on the specific structure design and manufacturing process.

[0013] Further, the horizontal height of the upper edge of the baffle plate is lower than or flush with the lower disc of the oil-gas separation device. Avoiding the liquid oil separated from the oil-gas separation device directly splashing to the side of the baffle plate away from the inner side wall of the shell.

[0014] Further, the side of the baffle plate away from the inner side wall of the shell is bent towards the side away from the exhaust pipe. The bending part is formed on the side of the baffle plate away from the inner side wall of the shell, which can further avoid the liquid oil flowing along the baffle plate to the exhaust pipe.

[0015] Further, the exhaust pipe comprises a connecting section connected with the first outlet, and an opening section connected with the connecting section, the opening section is close to the oil-gas separation device, and the inner diameter of the opening section decreases from the side away from the oil-gas separation device to the side close to the oil-gas separation device. Through the scheme, the gas collecting port is arranged on the opening section, and the closer to the oil-gas separation device, the smaller the gas collecting port, thereby avoiding the liquid oil separated from the oil-gas separation device directly falling into the gas collecting port.

[0016] Further, the gas collecting port is arranged on the opening section, and the gas collecting port is rotated to the side away from the rotating direction of the oil-gas separation device. That is, the direction of the gas collecting port is opposite to the direction of the gas flow generated when the oil-gas separation device works, which is beneficial to the gas collecting port collecting gas.

[0017] Further, the shell and the baffle are integrally formed. The shell around the first outlet is inwardly protruded to form the baffle, and the integrally formed design makes the production process of the shell simple.

[0018] Through the above technical scheme, the beneficial effects of the utility model are as follows:

[0019] In the present application, the baffle plate is arranged on the inner side wall of the shell around the first outlet, so as to avoid the liquid oil on the inner side wall contacting the exhaust pipe, thereby avoiding the liquid oil entering the gas collecting port of the exhaust pipe.

[0020] The gas collecting port is arranged on the side of the oil-gas separation device facing the rotation direction of the oil-gas separation device, that is, the direction of the gas collecting port is opposite to the direction of the gas flow generated during the operation of the oil-gas separation device, which is beneficial to the gas collecting port collecting the gas.

[0021] For the above and other objects, features and advantages of the present application, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 is the overall device structure schematic diagram of the oil-gas separator in the embodiment of the present application;

[0024] Figure 2 is the structure schematic diagram of the shell of the oil-gas separator in the embodiment of the present application;

[0025] Figure 3 is the structure schematic diagram of the inside of the shell of the oil-gas separator in the embodiment of the present application;

[0026] Figure 4 is the structure schematic diagram of the exhaust pipe of the oil-gas separator in the embodiment of the present application.

[0027] The above drawings have the following reference signs: 1, shell; 11, inlet; 12, second outlet; 13, first outlet; 2, oil-gas separation device; 3, exhaust pipe; 31, connecting section; 32, opening section; 321, gas collecting port; 33, second pipeline; 4, baffle. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] It should be noted that, in the description of this utility model, the terms "first," "second," etc., are used solely for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0030] Example: Combination Figures 1-4 As shown, this embodiment discloses an oil-gas separator, comprising:

[0031] Shell 1, such as Figure 2 As shown, the housing is provided with an inlet 11, a second outlet 12, and a first outlet 13. The inlet 11 is connected to a first conduit 111, which is used to connect to the vehicle engine to convey the gas-liquid mixture generated by engine operation to the oil-gas separator. The second outlet 12 allows the separated liquid to flow out. After the gas-liquid mixture is separated by the oil-gas separator 2, liquid oil is obtained. The liquid oil is discharged from the second outlet 12 and can be transported to the engine oil sump for recycling. The first outlet 13 allows the separated gas to flow out.

[0032] The housing 1 is provided with an oil-gas separator 2. In this application, the oil-gas separator 2 rotates counterclockwise. The inlet of the oil-gas separator 2 is arranged opposite to the inlet 11 of the housing 1. The upper bearing of the oil-gas separator 2 is arranged between the inlet of the oil-gas separator 2 and the inlet of the housing 1, that is, the upper bearing is located in the movement path of the gas-liquid mixture.

[0033] The first outlet 13 is located below the oil-gas separation device 2, and an exhaust pipe 3 is inserted into the first outlet 13. The exhaust pipe 3 is sealed and connected to the inner wall of the first outlet 13. Figure 3 As shown, the exhaust pipe 3 includes a connecting section 31 connected to the first outlet 13, and an opening section 32 connected to the connecting section 31. The opening section 32 is close to the oil-gas separation device 2, and the inner diameter of the opening section 32 decreases from the side away from the oil-gas separation device 2 to the side close to the oil-gas separation device 2. A gas collecting port 321 is provided on the opening section 32, and the gas collecting port 321 is used to collect the gas separated by the oil-gas separation device 2. The gas collecting port 321 faces the side of the rotation direction of the oil-gas separation device 2, that is, the direction of the gas collecting port 321 is opposite to the direction of the airflow generated when the oil-gas separation device 2 is working. This setting is conducive to the gas collecting port 321 to collect gas. The part of the exhaust pipe 3 located outside the shell 1 is connected to the second pipe 33, and the end of the second pipe 33 facing away from the exhaust pipe 3 is connected to the outside.

[0034] Through the above scheme, combined with Figure 3, 4 It can be obtained that the smaller the opening of the gas collecting port 321 is, the closer to the oil-gas separation device 2, so as to avoid the liquid oil separated from the oil-gas separation device 2 from entering the gas collecting port 321 as much as possible.

[0035] The inner side wall of the shell 1 is provided with a baffle, which includes a baffle plate 4 arranged on the upper side of the first outlet 13 and on both sides of the first outlet perpendicular to the upper side. That is, the baffle plate 4 can be made into a U shape, and the U-shaped baffle plate 4 is inverted at the first outlet 13, so that the liquid oil on the inner side wall of the shell 1 avoids the exhaust pipe 3. In this application, the shell and the baffle plate 4 are integrally formed. The height of the baffle plate 4 in the direction perpendicular to the inner side wall of the shell 1 is 4 mm, and the distance between the baffle plate 4 and the exhaust pipe 3 is 5 mm. The height of the baffle plate 4 depends on the size of the oil-gas separator. The smaller the oil-gas separator is, the smaller the height of the baffle plate 4 is, but at least 2 mm of height is needed to ensure its ability to block the liquid oil; the larger the oil-gas separator is, the larger the height of the baffle plate 4 can be, but a height of at most 6 mm is enough to achieve the effect of completely blocking the liquid oil. The distance between the baffle plate 4 and the exhaust pipe 3 depends on the height of the baffle plate 4. The smaller the height of the baffle plate 4 is, the smaller the distance between the baffle plate 4 and the exhaust pipe 3 is, so as to ensure the ability of the baffle plate 4 to block the liquid oil; the larger the height of the baffle plate 4 is, the larger the distance between the baffle plate 4 and the exhaust pipe 3 can be.

[0036] The horizontal height of the upper edge of the baffle plate 4 is lower than or flush with the lower disc of the oil-gas separation device 2. This avoids the liquid oil separated from the oil-gas separation device 2 from directly falling on the side of the baffle plate 4 away from the inner side wall of the shell 1, and avoids the liquid oil from flowing along the side of the baffle plate 4 away from the inner side wall of the shell 1 into the gas collecting port 321 of the exhaust pipe 3.

[0037] When the oil-gas separation device 2 is working, the liquid oil separated by the oil-gas separation device 2 falls on the inner side wall of the shell 1 due to the centrifugal force, and under the influence of the rotation of the oil-gas separation device 2, the liquid oil will rotate counterclockwise along the inner side wall of the shell 1 and fall, and the gas will also rotate counterclockwise. When the liquid oil and the gas touch the baffle plate 4 during movement, part of the liquid oil and the gas will flow back and interact with the liquid oil and the gas that continue to advance, forming a vortex on the windward side of the baffle plate 4, so that the liquid oil no longer contacts the baffle plate, further ensuring that the liquid oil will not flow along the exhaust pipe 3 into the gas collecting port 321.

[0038] The baffle 4 is bent away from the side of the inner side wall of the shell 1 towards the side away from the exhaust pipe 3. The bent part forms a protection on the side of the baffle 4 away from the inner side wall of the shell 1. When the liquid oil flows along the upper edge of the baffle 4, the liquid oil is limited to flow between the bent part and the inner side wall of the shell 1 due to the existence of the bent part, and the liquid oil is prevented from flowing inwards along the baffle 4.

[0039] Optionally, the baffle 4 can be arranged in an L shape, and the L-shaped baffle 4 is arranged on the upper side of the first outlet 13 and the side of the oil-gas separation device 2 in the rotating direction.

[0040] The principle and implementation mode of the present application are described in the specific embodiments, and the above embodiment is only used to help understand the method and core idea of the present application. Meanwhile, for the general skilled in the art, the specific implementation mode and application range will be changed according to the idea of the present application, and the above description should not be understood as the limitation of the present application.

Claims

1. An oil and gas separator characterized by, The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device.

2. The oil and gas separator of claim 1, wherein, The application relates to a fuel vapor recovery device.

3. The oil and gas separator of claim 2, wherein, The application relates to a fuel vapor recovery device.

4. The oil and gas separator of claim 2, wherein, The application relates to a fuel vapor recovery device.

5. The oil and gas separator of claim 2, wherein, The application relates to a fuel vapor recovery device.

6. The oil and gas separator of claim 2, wherein, The application relates to a fuel vapor recovery device.

7. The oil and gas separator of claim 1, wherein, The application relates to a fuel vapor recovery device.

8. The oil and gas separator of claim 7, wherein, The application relates to a fuel vapor recovery device.

9. The oil and gas separator of claims 1 or 2, wherein, The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel vapor recovery device. The application relates to a fuel

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