Oil-gas separator

Abstract

The utility model provides an oil-gas separator. The oil-gas separator comprises a shell; the oil-gas separation device is arranged in the shell and comprises a rotating shaft; the first end of the rotating shaft is sleeved with the first bearing, the outer ring of the first bearing is fixedly connected with the inner wall of the shell, and a gap is formed between the inner ring of the first bearing and the rotating shaft; the second end of the rotating shaft is sleeved with the second bearing, the outer ring of the second bearing is fixedly connected with the inner wall of the shell, and a gap is formed between the inner ring of the second bearing and the rotating shaft. According to the oil-gas separator provided by the invention, the assembly process difficulty of the oil-gas separator in the production process can be reduced, the assembly efficiency is improved, and the production efficiency of the oil-gas separator is further improved.

Description

TECHNICAL FIELD

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

[0002] The oil-gas separator is a kind of equipment that separates gas-liquid mixture from each other.The existing oil-gas separator includes shell and shaft and bearing connected with shaft arranged in shell, bearing inner ring and shaft adopt interference fit, bearing outer ring and bearing seat adopt clearance fit, the oil-gas separator produced according to the above mode, manufacturing process and assembly process are too complex, lead to the cost of producing oil-gas separator is high, production efficiency is low. SUMMARY

[0003] In order to overcome the defects in the prior art, the utility model embodiment provides an oil-gas separator, which can reduce the assembly difficulty of the oil-gas separator in the production process, improve the assembly efficiency, and further improve the production efficiency of the oil-gas separator.

[0004] To achieve the above object, the utility model adopts the technical scheme that:

[0005] The utility model discloses an oil-gas separator, which comprises:

[0006] Shell;

[0007] Oil-gas separation device, the oil-gas separation device is located in the shell, and comprises a rotating shaft;

[0008] First bearing, the first bearing is sleeved on the first end of the rotating shaft, the outer ring of the first bearing is fixedly connected with the inner wall of the shell, and the inner ring of the first bearing has a gap with the rotating shaft;

[0009] Second bearing, the second bearing is sleeved on the second end of the rotating shaft, the outer ring of the second bearing is fixedly connected with the inner wall of the shell, and the inner ring of the second bearing has a gap with the rotating shaft.

[0010] The above technical scheme forms interference fit between the outer rings of the first bearing and the second bearing and the shell, and clearance fit between the inner rings of the first bearing and the second bearing and the rotating shaft, so that the assembly difficulty of the internal structure of the shell is reduced, and the assembly efficiency is improved.

[0011] Further, a first spring is sleeved on the rotating shaft in the axial direction, one end of the first spring is fixed with the rotating shaft, and the other end of the first spring abuts against the first bearing.

[0012] Second spring, one end of the second spring is fixed with the rotating shaft, and the other end of the second spring abuts against the second bearing.

[0013] Second spring, one end of the second spring is fixed with the rotating shaft, and the other end of the second spring abuts against the second bearing.

[0014] The inner ring of the first bearing and the second bearing is in clearance fit with the rotating shaft, in order to enable the rotating shaft to drive the inner ring of the first bearing and the second bearing to rotate, and avoid the rotating shaft from slipping with the inner ring of the first bearing and the second bearing, a first spring and a second spring are sleeved on the rotating shaft, the first spring and the second spring respectively abut against the first bearing and the second bearing, so that the rotating shaft and the inner ring of the first bearing and the second bearing form a fixed axial force, thereby enabling the rotating shaft to drive the inner ring of the first bearing and the second bearing to rotate.

[0015] Further, the rotating shaft and the inner ring of the first bearing and the inner ring of the second bearing form an axial force, when the diameter of the rotating shaft is 6mm-12mm, the axial force is 4-30N. When the oil-gas separator is working, the rotating shaft and the first bearing and the second bearing rotate to generate an axial force, if the axial force is too small, the rotating shaft and the inner ring of the first bearing and the second bearing are prone to slip, if the axial force is too large, the large axial force will cause damage to the first bearing and the second bearing, affect the service life of the first bearing and the second bearing, and reduce the working efficiency of the first bearing and the second bearing, when the diameter of the rotating shaft is 6mm-12mm, the axial force formed between the rotating shaft and the inner ring of the first bearing and the inner ring of the second bearing is 4-30N due to the arrangement of the first spring and the second spring, which can prolong the service life of the first bearing and the second bearing while realizing the functions of the first bearing and the second bearing.

[0016] Further, when the diameter of the rotating shaft is 6mm-12mm, the axial force is 6-15N. The greater the axial force, the greater the influence on the first bearing and the second bearing, when the axial force is set to 6-15N, the influence of the axial force on the first bearing and the second bearing is smaller, which can avoid affecting the service life and working efficiency of the first bearing and the second bearing.

[0017] Further, it further comprises:

[0018] The first bearing seat is connected with the inner wall of the shell, and the outer ring of the first bearing is fixedly installed in the first bearing seat;

[0019] The second bearing seat is connected with the inner wall of the shell, and the outer ring of the second bearing is fixedly installed in the second bearing seat.

[0020] The first bearing and the second bearing can be fixed in the shell through the bearing seat, and when fixed, the first bearing and the second bearing are in interference fit with the first bearing seat and the second bearing seat.

[0021] Further, the shell comprises an upper shell and a base connected with the upper shell, the first bearing is fixed in the upper shell, and the second bearing is fixed in the base.

[0022] Further, the upper shell is provided with an inlet and a gas outlet, and the base is provided with a liquid outlet.

[0023] Thanks to the above technical scheme, the present application has the following advantages over the prior art.

[0024] 1. The first bearing and the second bearing are in interference fit with the shell, and the inner rings of the first bearing and the second bearing are in clearance fit with the rotating shaft, thereby reducing the assembly difficulty of the internal structure of the shell and improving the assembly efficiency.

[0025] 2. The first spring and the second spring are arranged on the rotating shaft, and the first spring and the second spring respectively abut against the first bearing and the second bearing, so as to form a fixed axial force between the rotating shaft and the inner rings of the first bearing and the second bearing, thereby rotating the inner rings of the first bearing and the second bearing driven by the rotating shaft.

[0026] To make the above and other objects, features and advantages of the present application more apparent, a preferred embodiment is described below in detail, and the accompanying drawings are referred to, as follows. BRIEF DESCRIPTION OF DRAWINGS

[0027] To make the above and other objects, features and advantages of the present application more apparent, a preferred embodiment is described below in detail, and the accompanying drawings are referred to, as follows.

[0028] Fig. 1 is a structural diagram of an oil-gas separator provided by the present application;

[0029] Fig. 2 is a sectional view of an oil-gas separator provided by the present application;

[0030] Fig. 3 is a structural diagram of a rotating shaft provided by the present application.

[0031] The above drawings are marked as follows: 1, shell; 2, oil-gas separation device; 3, rotating shaft; 4, first bearing; 5, second bearing; 6, first spring; 7, second spring; 8, upper shell; 9, base; 10, inlet; 11, gas outlet; 12, liquid outlet. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. In addition, the drawings of the present application are only simple schematic illustrations, and are not drawn according to actual sizes, and it is declared in advance.

[0033] In the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "forward", "backward", "between", "close to", "far away from" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] It should be understood that although the terms "first", "second", "third" and the like may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items, as appropriate.

[0035] Referring to Figs. 1-3 The embodiment of the present application provides an oil and gas separator, which comprises:

[0036] The shell 1 comprises an upper shell 8 and a base 9, and the upper shell 8 and the base 9 are connected to form a sealed gas-liquid separation area, providing a space for separating gas from liquid in a gas-liquid mixture, as shown in Fig. 1 The upper shell 8 is provided with an inlet 10 and a gas outlet 11 for the separated gas to flow out, the inlet 10 comprises a first inlet connected with a pipeline above the upper shell 8 and a second inlet located on one side of the pipeline for receiving the gas-liquid mixture, and the gas outlet 11 is arranged close to the bottom of the upper shell 8 and is connected with a gas outlet pipeline, one end of the gas outlet pipeline in the upper shell 8 is provided with a gas inlet for collecting the separated gas, as shown in Fig. 2As shown, the gas inlet is located at one end of the upper shell 8 and between the base 9 and the oil-gas separation device 2, thereby collecting the gas between the upper shell 8 and the oil-gas separation device 2. The base 9 is provided with an outlet 12 for the separated liquid to flow out, and when the oil-gas separator is connected with the engine, the liquid oil separated by the oil-gas separation device 2 can be transported to the engine for recycling after being discharged through the outlet 12.

[0037] The oil-gas separation device 2 is arranged in the shell 1, as shown in the figure, Fig. 2 As shown, the oil-gas separation device 2 comprises a rotating shaft 3 arranged in a first direction and a plurality of rotors arranged on the rotating shaft 3, and the rotors rotate with the rotating shaft 3 when the rotating shaft 3 rotates, thereby separating the gas and liquid in the gas-liquid mixture entering from the inlet 10. The rotating shaft 3 is sleeved with a first bearing 4 and a second bearing 5, the first bearing 4 is sleeved on the first end of the rotating shaft 3, the outer ring of the first bearing 4 is fixedly connected with the inner wall of the upper shell 8, so that the first bearing 4 forms an interference fit with the upper shell 8, thereby reducing the production cost of the oil-gas separation device and improving the production efficiency, the inner ring of the first bearing 4 has a gap with the rotating shaft 3, the size of the gap is set to enable the rotating shaft 3 to move relative to the first bearing 4, and the inner ring of the first bearing 4 forms a clearance fit with the rotating shaft 6, thereby ensuring the bearing clearance, the second bearing 5 is sleeved on the second end of the rotating shaft 3, the outer ring of the second bearing 5 is fixedly connected with the inner wall of the base 9, so that the second bearing 5 forms an interference fit with the base 9, thereby reducing the production cost of the oil-gas separation device 2 and improving the production efficiency, and the inner ring of the second bearing 5 has a gap with the rotating shaft 3, the size of the gap is set to enable the rotating shaft 3 to move relative to the second bearing 5, and the inner ring of the second bearing 5 forms a clearance fit with the rotating shaft 3, thereby ensuring the bearing clearance.

[0038] In a possible embodiment, the shell 1 is provided with a first bearing seat and a second bearing seat, the first bearing seat is connected with the inner wall of the upper shell 8, the outer ring of the first bearing 4 is fixedly installed in the first bearing seat, and the outer ring of the first bearing 4 forms an interference fit with the first bearing seat, the second bearing seat is connected with the inner wall of the base 9, and the outer ring of the second bearing 5 is fixedly installed in the second bearing seat, and the outer ring of the second bearing 5 forms an interference fit with the second bearing seat, thereby reducing the production cost of the oil-gas separator and improving the production efficiency.

[0039] Through the above structure, the oil-gas separator in the embodiment of the present application can reduce the difficulty of assembling the internal structure of the oil-gas separation device, improve the assembly efficiency, thereby reducing the production cost of the oil-gas separator and improving the production efficiency.

[0040] The first direction is from the upper shell 8 to the base 9 of the oil-gas separator, and the first end and the second end of the rotating shaft 3 are only used to illustrate the connection relationship between the structures, and the end of the rotating shaft 3 is not limited.

[0041] In order to ensure that the rotating shaft 3 can drive the first bearing 4 and the second bearing 5 to rotate, and avoid the rotating shaft 3 and the first bearing 4 and the second bearing 5 from slipping, a first spring 6 and a second spring 7 are sleeved along the axial direction of the rotating shaft 3, as shown in Figs. Fig. 2 and Fig. 3 One end of the first spring 6 is fixed to the rotating shaft 3, and the other end is in contact with the first bearing 4, and one end of the second spring 7 is fixed to the rotating shaft 3, and the other end is in contact with the second bearing 5, so that the rotating shaft 3 and the inner ring of the first bearing 4, and the rotating shaft 3 and the inner ring of the second bearing 5 are formed with a fixed axial force.

[0042] In a possible embodiment, since too small axial force can cause the inner ring of the first bearing 4 and the second bearing 5 to slip, and too large axial force can cause the first bearing 4 and the second bearing 5 to be damaged and reduce the efficiency of the first bearing 4 and the second bearing 5, therefore, when the diameter of the rotating shaft 3 is 6mm-12mm, the axial force is 4-30N. Preferably, when the diameter of the rotating shaft is 6mm-12mm, the axial force is 6-15N.

[0043] 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 those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. An oil and gas separator characterized by, The utility model relates to a kind of oil-gas separation device, including: Shell; Oil-gas separation device, the oil-gas separation device is located in the shell, including rotating shaft; First bearing, the first bearing is sleeved in the first end of the rotating shaft, the outer ring of the first bearing is fixedly connected with the inner wall of the shell, and the inner ring of the first bearing has a gap with the rotating shaft; Second bearing, the second bearing is sleeved in the second end of the rotating shaft, the outer ring of the second bearing is fixedly connected with the inner wall of the shell, and the inner ring of the second bearing has a gap with the rotating shaft; First spring, one end of the first spring is fixed with the rotating shaft, and the other end is in contact with the first bearing; Second spring, one end of the second spring is fixed with the rotating shaft, and the other end is in contact with the second bearing. Axial force is formed between rotating shaft and first bearing inner ring, and between rotating shaft and second bearing inner ring, and when the diameter of the rotating shaft is 6mm-12mm, the axial force is 4-30N.

2. A gas-oil separator according to claim 1, characterized in that When the diameter of the rotating shaft is 6mm-12mm, the axial force is 6-15N.

3. A gas-oil separator according to claim 2, characterized in that Further including:

4. A gas-oil separator according to claim 1, characterized in that First bearing seat, the first bearing seat is connected with the inner wall of the shell, and the outer ring of the first bearing is fixedly installed in the first bearing seat; Second bearing seat, the second bearing seat is connected with the inner wall of the shell, and the outer ring of the second bearing is fixedly installed in the second bearing seat. The shell includes an upper shell and a base connected to the upper shell, the first bearing is fixed in the upper shell, and the second bearing is fixed in the base.

5. A gas-oil separator according to claim 1, characterized in that The upper shell is provided with an inlet and a gas outlet for gas outflow, and the base is provided with a liquid outlet for liquid outflow.

6. A gas-oil separator according to claim 5, characterized in that ​

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