CN214887295U

CN214887295U - Oil-gas separator

Info

Publication number: CN214887295U
Application number: CN202120127715.9U
Authority: CN
Inventors: 王静媛; 郭拥军; 乔国平; 娄新胜; 郭志英; 李汶东; 陈倩
Original assignee: Xinjiang Ai Cleaning Technology Co ltd
Current assignee: Xinjiang Ai Cleaning Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-11-26
Anticipated expiration: 2031-01-18

Abstract

The utility model provides an oil-gas separator, belonging to the technical field of mechanical equipment; the oil-gas separator comprises a tank body, the top of the tank body is communicated with an air outlet pipe, and the bottom of the tank body is communicated with an oil return pipe; the side surface of the tank body is communicated with an air inlet pipe, a flow baffle is arranged in the air inlet pipe, and the flow baffle and the air inlet pipe form a preset angle; the back of the tank body is provided with a mounting bracket, and the mounting bracket is provided with a mounting hole. According to the scheme, the oil-gas separator can be used for separating oil from gas of blow-by gas generated by the crankcase, so that the blow-by gas mixed with a large amount of pollutants is prevented from directly entering the atmosphere and polluting the environment. Specifically, blow-by gas generated by the crankcase is separated after colliding with the flow baffle plate through the gas inlet pipe, enters the separation cavity in the tank body for oil-gas separation, the separated blow-by gas enters the gas inlet pipe of the engine through the gas outlet pipe or is discharged into the atmosphere, and the separated engine oil flows out through the oil return pipe and can directly flow back to the oil tank.

Description

Oil-gas separator

Technical Field

The utility model relates to the technical field of mechanical equipment, especially indicate an oil and gas separator.

Background

When the engine works, high pressure is generated from compression to combustion, and compressed gas can flee out from the gaps of the piston and the cylinder body, the opening of the piston ring, the gaps of the piston ring and the cylinder body and the like to enter a crankcase. Piston and cylinder, all not totally sealed between piston ring and the cylinder, there is certain clearance on piston and the cylinder cooperation, also can not be complete circle between cylinder and the piston ring, and the piston ring has the opening gap in order to solve expend with heat and contract with cold, and these places all have the gas leakage of being compressed and burning. The crankcase is communicated with the cylinder body and the valve chamber cover on the cylinder cover, and the gases can flow in the engine, namely blow-by gases, which are conventionally called crankcase blow-by gases and engine blow-by gases.

These blow-by gases include not only residual fuel oil and exhaust gas and soot generated by combustion, but also engine oil and aerosol containing oil vapor and water vapor. If the crankcase is vented, blow-by gases can entrain large amounts of contaminants into the atmosphere. In order to avoid direct exhaust of blow-by gas into the atmosphere, an oil-gas separator is required to be arranged, so that separated clean gas enters an engine to be combusted again or is directly exhausted into the atmosphere.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an oil and gas separator to when solving to the crankcase ventilation, the blowby gas can be mingled with a large amount of pollutants and get into the atmosphere, thereby the problem of polluted environment.

In order to solve the technical problem, the utility model provides a following technical scheme:

an oil-gas separator comprises a tank body, wherein the top of the tank body is communicated with an air outlet pipe, and the bottom of the tank body is communicated with an oil return pipe; the side surface of the tank body is communicated with an air inlet pipe, a flow baffle is arranged in the air inlet pipe, and the flow baffle and the air inlet pipe form a preset angle; the back of the tank body is provided with a mounting bracket, and the mounting bracket is provided with a mounting hole.

The tank body comprises a tank body, a cover plate is arranged at the top of the tank body, a cone is arranged at the bottom of the tank body, the air outlet pipe is inserted in the cover plate and extends to the inside of the tank body, and the oil return pipe is connected with the cone.

The barrel is cylindrical, an air inlet is formed in the barrel and is connected with the air inlet pipe, the air inlet pipe is tangent to the barrel, the air inlet pipe is formed by cutting in the outer diameter of the barrel through the air inlet pipe, and the air inlet is attached to the open end of the air inlet pipe.

The cone is in a round table shape, the large end of the cone is welded with the cylinder, the small end of the cone is welded with the oil return pipe, and the oil return pipe is connected with a hose.

Wherein, the outlet duct is the form of buckling, and the angle of buckling is greater than 90.

The flow baffle is characterized in that the outline of the flow baffle is attached to the inner side wall of the air inlet pipe.

Wherein the predetermined angle ranges from 140 ° to 160 °.

The mounting bracket comprises an arc part, a connecting part and a plate part which are sequentially connected, wherein the arc part is attached to the outer side wall of the tank body, the connecting part is vertically arranged on the plate part, the connecting part is in arc transition with the plate part, and at least two mounting holes are formed in the plate part.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

in the scheme, blow-by gas generated by the crankcase is separated after colliding with the flow baffle plate through the air inlet pipe, the blow-by gas enters the separation cavity in the tank body to be subjected to oil-gas separation, the separated blow-by gas enters the air inlet pipe of the engine through the air outlet pipe or is discharged into the atmosphere, and the separated engine oil flows out through the oil return pipe and can directly flow back to the oil tank. The oil-gas separator can separate oil from gas of blow-by gas generated by the crankcase, so that the blow-by gas mixed with a large amount of pollutants is prevented from directly entering the atmosphere and polluting the environment.

Drawings

FIG. 1 is a schematic structural diagram of an oil-gas separator of the present invention;

FIG. 2 is a front view of the oil-gas separator of the present invention;

FIG. 3 is a side view of the oil-gas separator of the present invention;

FIG. 4 is a top view of the oil-gas separator of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a schematic view of a tank body of the oil-gas separator of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a schematic view of the air inlet pipe of the oil-gas separator of the present invention;

fig. 10 is a schematic view of the flow baffle of the oil-gas separator of the present invention.

[ reference numerals ]

1. An air outlet pipe;

2. an air inlet pipe;

3. mounting a bracket;

4. a tank body; 41. a cover plate; 42. a barrel; 43. a cone; 44. an air inlet;

5. an oil return pipe;

6. a flow baffle plate;

7. a separation chamber.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 10, an embodiment of the present invention provides an oil-gas separator, which includes a tank 4, wherein the top of the tank 4 is communicated with an air outlet pipe 1, and the bottom is communicated with an oil return pipe 5; the side surface of the tank body 4 is communicated with an air inlet pipe 2, and a flow baffle 6 is arranged in the air inlet pipe 2; the back of the tank body 4 is provided with a mounting bracket 3, and the mounting bracket 3 is provided with a mounting hole.

As shown in fig. 6, the tank 4 includes a cylinder 42, a cover plate 41 is disposed on the top of the cylinder 42, and a cone 43 is disposed on the bottom of the cylinder 42. The cover plate 41, the cylinder 42 and the cone 43 are welded in sequence to form a separation chamber 7. Specifically, the air outlet pipe 1 is inserted into the cover plate 41 and extends into the tank 4, and the oil return pipe 5 is connected with the cone 43.

As shown in fig. 8, the cylindrical body 42 is cylindrical, and an air inlet 44 is opened in the cylindrical body 42, and the air inlet 44 is connected to the air inlet pipe 2. As shown in fig. 4, the air inlet pipe 2 is tangent to the cylinder 42, the air inlet 44 is formed by cutting the air inlet pipe 2 along the outer diameter of the cylinder 42, and the air inlet 44 is attached to the open end of the air inlet pipe 2.

As shown in fig. 6, the cone 43 is in a truncated cone shape and plays a role in collecting and collecting the separated engine oil, a large end of the cone 43 is welded to the cylinder 42, a small end of the cone 43 is welded to the oil return pipe 5, the collected engine oil enters the oil return pipe 5 along the cone 43, the oil return pipe 5 is connected to a hose connected to an oil tank, and the separated engine oil can return to the oil tank again through the hose.

In this embodiment, the outlet tube 1 is formed by bending a circular steel tube, and the bending angle a is greater than 90 °, so that when blow-by gas is discharged, if pollutants such as engine oil and the like are continuously accumulated on the wall of the outlet tube 1, the blow-by gas can smoothly flow down along the wall of the outlet tube 1.

The air inlet pipe 2 is formed by processing a round steel pipe, and forms an air inlet passage of crankcase blow-by gas together with the cylinder 42, so that the blow-by gas is ensured to enter the separation cavity 7 along the tangential direction of the cylinder wall of the cylinder 42.

The flow baffle 6 is formed by processing a steel plate and is welded at the bottom in the air inlet pipe 2. The outline of the flow baffle 6 is attached to the inner side wall of the air inlet pipe 2. As shown in fig. 5, the baffle plate 6 and the air inlet pipe 2 form a predetermined angle, and the predetermined angle ranges from 140 ° to 160 °. On one hand, the baffle 6 can change the direction of the gas entering the cylinder 42, so that more gas can enter the cylinder 42 close to the tangential direction of the inner diameter of the cylinder 42, and the speed of the gas entering the cylinder 42 cannot be greatly reduced. When the angle is too small, less than 140 °, the gas collides with the baffle 6 to change direction, and the speed is reduced, and when the angle is too large, more than 160 °, the gas changing direction is reduced. On the other hand, before entering the cylinder 42 from the air inlet pipe 2, the blow-by gas mixture collides with the flow baffle 6, and then is separated for the first time, the particulate matters are intercepted, and the oil gas is attached to the flow baffle 6 through contact and slowly gathered, so that the separation effect is achieved.

As shown in fig. 3 and 4, the mounting bracket 3 is formed by processing a steel plate, the mounting bracket 3 includes an arc portion, a connecting portion and a plate portion, which are connected in sequence, wherein the arc portion is attached to the outer side wall of the tank 4 and is connected to the tank 4 by welding, the sufficient contact area ensures the welding strength, the connecting portion is perpendicular to the plate portion, the connecting portion is in arc transition with the plate portion, the plate portion is provided with two mounting holes, and the mounting bracket can be fixed to the crankcase body of the engine through the mounting holes.

The utility model provides an oil and gas separator's working process as follows:

blow-by gas generated by the crankcase passes through the air inlet pipe 2 and collides with the flow baffle 6, at the moment, partial particles and oil gas are intercepted, the blow-by gas direction colliding with the blow-by gas is changed, the blow-by gas enters the separation cavity 7 along the tangential direction of the maximum diameter of the cylinder 42, the blow-by gas forms cyclone in the separation cavity 7 by the power of the blow-by gas, and the engine oil is thrown out ceaselessly under the action of the centrifugal force of the cyclone and onto the inner wall of the cylinder 42. The engine oil continuously gathers on the inner wall of the cylinder 42 to form oil drops with larger weight, the oil drops flow down along the inner wall of the cylinder 42 under the self gravity, flow into the cone 43, gather together along the inner side wall of the cone 43, flow into the oil return pipe 5, flow back to the oil tank through the oil return pipe 5, and the separated clean gas flows out from the gas outlet pipe 1 and enters the air inlet pipe of the engine or is discharged into the atmosphere.

In the scheme, the air inlet pipe, the air outlet pipe and the oil return pipe are respectively welded with the tank body, so that a novel oil-gas separator which is simple in structure, high in efficiency and low in cost is formed; the blow-by gas generated by the crankcase is separated after colliding with the flow baffle plate through the gas inlet pipe, then enters the separation cavity in the tank body for oil-gas separation, the separated blow-by gas enters the gas inlet pipe of the engine through the gas outlet pipe or is discharged into the atmosphere, the separated engine oil flows out through the oil return pipe and can directly flow back to the oil tank, and the oil-gas separator can perform oil-gas separation on the blow-by gas generated by the crankcase, so that the blow-by gas mixed with a large amount of pollutants is prevented from directly entering the atmosphere and polluting the environment; the oil-gas separator adopts a hanging plate mounting mode and is fixed on the crankcase body of the engine crankcase through the mounting bracket, and the mounting is convenient and quick.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An oil-gas separator comprises a tank body, and is characterized in that the top of the tank body is communicated with an air outlet pipe, and the bottom of the tank body is communicated with an oil return pipe;

the side surface of the tank body is communicated with an air inlet pipe, a flow baffle is arranged in the air inlet pipe, and the flow baffle and the air inlet pipe form a preset angle;

the back of the tank body is provided with a mounting bracket, and the mounting bracket is provided with a mounting hole.

2. An oil-gas separator as in claim 1, wherein the tank comprises a cylinder body, a cover plate is arranged at the top of the cylinder body, a cone is arranged at the bottom of the cylinder body, the gas outlet pipe is inserted into the cover plate and extends to the inside of the tank body, and the oil return pipe is connected with the cone.

3. An oil-gas separator as in claim 2, wherein the cylinder is cylindrical, the cylinder is provided with an air inlet, the air inlet is connected with the air inlet pipe, the air inlet pipe is tangent to the cylinder, the air inlet is formed by cutting the air inlet pipe along the outer diameter of the cylinder, and the air inlet is attached to the open end of the air inlet pipe.

4. An oil-gas separator as in claim 2, wherein the cone is in the shape of a circular truncated cone, the large end of the cone is welded to the cylinder, the small end of the cone is welded to the oil return pipe, and the oil return pipe is connected with a hose.

5. An oil and gas separator as in claim 1, wherein the outlet duct is bent at an angle greater than 90 °.

6. An oil separator as in claim 1 wherein the baffle has a contour conforming to an inner sidewall of the inlet pipe.

7. An oil separator as in claim 1 wherein the predetermined angle is in the range of 140 ° to 160 °.

8. An oil-gas separator as claimed in any one of claims 1 to 7, wherein the mounting bracket comprises an arc-shaped portion, a connecting portion and a plate-shaped portion, wherein the arc-shaped portion is attached to an outer side wall of the tank body, the connecting portion is perpendicular to the plate-shaped portion, an arc transition is formed between the connecting portion and the plate-shaped portion, and at least two mounting holes are formed in the plate-shaped portion.