Shell assembly of oil-gas separator and oil-gas separator

Abstract

The utility model provides a shell assembly of an oil-gas separator and the oil-gas separator, the shell assembly comprises a first shell, the first shell is provided with an opening, a gas inlet and a gas outlet are formed in the first shell, and a first bearing is arranged in the first shell; an oil outlet is formed in the second shell, a second bearing is arranged in the second shell, and the second shell and the first shell are connected in a welded mode to form an oil-gas separation space; the air inlet pipe is in welded connection with the air inlet of the first shell; the air outlet pipe is in welded connection with the air outlet of the first shell; the oil return pipe is connected with the oil outlet of the second shell in a welded mode. The oil-gas separator is good in sealing performance, simple in assembly process, high in production automation degree and low in production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fluid purification, specifically relates to a casing assembly of oil gas separator and 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 inlet pipe, upper shell, lower shell, oil return pipe, outlet pipe and the like structure, when these structures are connected and assembled, it needs to use screw to fix, in order to enhance the sealing property between structure connection, still need to use sealing ring and the like parts, oil gas separator assembled according to the existing mode, not only assembly mode is complicated, and manufacturing cost is high, and sealing performance is insufficient. SUMMARY

[0003] In order to overcome the defects in the prior art, the casing assembly of oil gas separator and oil gas separator provided by the embodiments of the utility model not only have good sealing performance, but also have simple assembly process, high production automation degree and low production cost.

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

[0005] The utility model discloses a casing assembly of oil gas separator, comprising:

[0006] First shell, the first shell has opening, the first shell is equipped with inlet and outlet, is equipped with first bearing in the first shell;

[0007] Second shell, the second shell is equipped with oil outlet, is equipped with second bearing in the second shell, the second shell is welded and is connected with the first shell and forms oil gas separation space;

[0008] Inlet pipe, the inlet pipe is welded and is connected with the inlet of the first shell;

[0009] Outlet pipe, the outlet pipe is welded and is connected with the outlet of the first shell;

[0010] Oil return pipe, the oil return pipe is welded and is connected with the oil outlet of the second shell.

[0011] The above technical scheme is connected and sealed by welding the first shell, the second shell, the inlet pipe, the outlet pipe and the oil return pipe, compared with the existing oil gas separator, not only has good sealing performance, but also does not need to assemble sealing ring and fastening screw and the like parts, simplifies the assembly process of oil gas separator, improves production automation degree and assembly efficiency, and can reduce the production cost of oil gas separator.

[0012] Further, the first shell, the second shell, the gas inlet pipe, the gas outlet pipe and the oil return pipe are plastic parts. The material of the shell assembly is plastic parts, which can significantly reduce the weight and cost of the oil-gas separator, and the effect on the second shell located in the lower part of the oil-gas separator is particularly obvious.

[0013] Further, the first bearing is injection molded in the first shell, and the second bearing is injection molded in the second shell. The first bearing and the second bearing are fixed in the shell by injection molding, without the need to set a bearing seat, thereby reducing the assembly parts of the oil-gas separator, simplifying the assembly method, and reducing the cost.

[0014] Further, the first shell is provided with a connecting portion near the gas inlet of the first shell, the first bearing is injection molded in the connecting portion, and a plurality of through holes for gas entering are arranged around the first bearing on the connecting portion. The connecting portion is used for fixing the first bearing, and the through holes on the connecting portion are used for the gas to be separated to enter the oil-gas separation device.

[0015] Further, the gas inlet is arranged at one end of the first shell away from the outlet, the oil outlet is arranged at the bottom of the second shell, the gas inlet and the oil outlet are coaxially arranged, and the gas outlet is arranged near the opening of the first shell.

[0016] The second aspect of the utility model discloses an oil-gas separator, the oil-gas separator includes the shell assembly as any one of the first aspect, still include the oil-gas separation device in the shell assembly, the oil-gas separation device includes the rotating shaft that is arranged in the first bearing and the second bearing and the rotor that is sleeved on the rotating shaft.

[0017] Further, the rotor has a gas inlet, and the gas inlet of the rotor forms an air inlet channel with the through holes on the connecting portion and the gas inlet of the first shell.

[0018] Further, the gas outlet pipe includes a gas collecting port for collecting separated gas in the shell assembly, and the gas collecting port is located below the oil-gas separation device.

[0019] Due to the use of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0020] 1. The first shell, the second shell, the gas inlet pipe, the gas outlet pipe and the oil return pipe are connected and sealed by welding, which has good sealing performance compared with the existing oil-gas separator, and does not need to assemble parts such as sealing ring and fastening screw, simplifies the assembly process of the oil-gas separator, improves the production automation degree and assembly efficiency, and reduces the production cost of the oil-gas separator.

[0021] 2、The first bearing and the second bearing are fixed in the shell by injection molding, without the need to set a bearing seat, further reducing the assembly components of the oil-gas separator, simplifying the assembly mode, improving the assembly efficiency, and reducing the production cost.

[0022] 3、The material of the shell assembly in the application is a plastic part, which can significantly reduce the weight and cost of the oil-gas separator, and the effect on the second shell located at the lower part of the oil-gas separator is particularly obvious.

[0023] In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment 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.

[0025] Figure 1 is a structure diagram of an oil-gas separation device provided by the embodiment of the present application;

[0026] Figure 2 is a structure diagram of a first shell provided by the embodiment of the present application;

[0027] Figure 3 is a structure diagram of a second shell provided by the embodiment of the present application;

[0028] Figure 4 is a sectional view of an oil-gas separation device provided by the embodiment of the present application;

[0029] Figure 5 is an internal structure diagram of an oil-gas separation device provided by the embodiment of the present application.

[0030] The above drawings are marked as follows: 1, first shell; 2, second shell; 3, air inlet pipe; 4, air outlet pipe; 5, oil return pipe; 6, first bearing; 7, second bearing; 8, connecting part; 9, through hole; 10, oil-gas separation device; 11, rotating shaft; 12, rotor; 13, air inlet; 14, air outlet; 15, oil outlet; 16, gas collecting port. DETAILED DESCRIPTION

[0031] 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. 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.

[0032] 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 do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on 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, it can be fixed connection, or detachable connection, or integrally connected, it 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.

[0033] 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.

[0034] Embodiment one: refer to Figures 1-3 The embodiment of the present application provides a shell assembly of an oil-gas separator, which comprises a first shell 1, a second shell 2, an air inlet pipe 3, an air outlet pipe 4 and an oil return pipe 5, wherein the first shell 1 and the second shell 2 are welded and connected, the air inlet pipe 3 and the air outlet pipe 4 are both welded and connected with the first shell 1, and the oil return pipe 5 is welded and connected with the second shell 2.

[0035] By means of the above-mentioned welding connection, the shell components of the oil-gas separator are connected and sealed, compared with the existing oil-gas separator, not only the sealing performance is good, but also the assembly process of the oil-gas separator is simplified, the production automation degree and assembly efficiency can be improved, and the production cost of the oil-gas separator is reduced.

[0036] Specifically, refer to Figure 2 and Figure 4As shown, the first shell 1 is provided in a barrel structure, thereby being welded with the second shell 2 to form an oil-gas separation space in which gas and liquid can be separated, the first shell 1 has an opening at one end, and the other end away from the opening is provided with a gas inlet 13 for the gas to be separated to enter, the first shell 1 is provided with a gas outlet 14 near the opening end for the separated gas to flow out, the gas inlet pipe 3 is welded with the gas inlet 13 of the first shell 1, thereby connecting the gas inlet pipe 3 with the first shell 1 and sealing the connection between the gas inlet pipe 3 and the gas inlet 13, and the gas outlet pipe 4 is welded with the gas outlet 14 of the first shell 1, thereby connecting the gas outlet pipe 4 with the first shell 1 and sealing the connection between the gas outlet pipe 4 and the gas outlet 14.

[0037] The first shell 1 is provided with the first bearing 6, in the embodiment of the present application, the first shell 1 is an injection molding part, and the first bearing 6 is injection molded in the first shell 1, thereby eliminating the need to set a bearing seat matched with the first bearing 6, reducing the assembly components of the oil-gas separator, simplifying the assembly mode, and reducing the cost.

[0038] In a possible embodiment, the first shell 1 is provided with a connecting part 8, the connecting part 8 is arranged near the gas inlet 13 of the first shell 1, the first bearing 6 is injection molded in the connecting part 8, and a plurality of through holes 9 for the gas to enter are arranged around the first bearing 6 on the connecting part 8.

[0039] Referring to Figure 3 and Figure 4 As shown, the second shell 2 is provided with an oil outlet 15 for the separated liquid oil to flow out, the oil outlet 15 is arranged at the bottom of the second shell 2, and the oil outlet 15 is coaxially arranged with the gas inlet 13, and the oil return pipe 5 is welded with the oil outlet 15 of the second shell 2, thereby connecting the oil return pipe 5 with the second shell 2 and sealing the connection between the oil return pipe 5 and the oil outlet 15.

[0040] The second shell 2 is provided with the second bearing 7, in the embodiment of the present application, the second shell 2 is an injection molding part, and the second bearing 7 is injection molded in the second shell 2, thereby eliminating the need to set a bearing seat matched with the second bearing 7, reducing the assembly components of the oil-gas separator, simplifying the assembly mode, and reducing the cost.

[0041] In order to reduce the weight and cost of the oil-gas separator, in the embodiment of the present application, the first shell 1, the second shell 2, the gas inlet pipe 3, the gas outlet pipe 4, and the oil return pipe 5 are plastic parts, and a plurality of plastic materials can be used, such as nylon plastic.

[0042] Embodiment two: referring to Figures 1-5 As shown, the oil-gas separator provided in the embodiment of the present application comprises the shell assembly as described in embodiment one, and further comprises an oil-gas separation device 10 arranged in the shell assembly.

[0043] As Figure 4 andFigure 5 As shown, the oil-gas separation device 10 comprises a rotating shaft 11 penetrating through the first bearing 6 and the second bearing 7 and a rotor 12 sleeved on the rotating shaft 11, when the rotating shaft 11 rotates, the rotor 12 rotates to separate the gas and the liquid oil.

[0044] Specifically, the rotor 12 has an air inlet, the air inlet of the rotor 12 and the through hole 9 on the connecting part 8 and the air inlet 13 of the first shell 1 form an air inlet channel, so as to supply the gas to be separated into the oil-gas separator.

[0045] The gas outlet pipe 4 comprises a gas collecting port 16 for collecting the separated gas in the shell assembly, the gas collecting port 16 is located below the oil-gas separation device 10, and the opening of the gas collecting port 16 faces the oil-gas separation device 10, so as to facilitate the collection of the separated gas.

[0046] The principle and implementation mode of the present application are described by the specific embodiments, and the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for the general skilled in the art, according to the idea of the present application, the specific implementation mode and the application range will be changed, and the above description should not be understood as the limitation of the present application.

Claims

1. A housing assembly for an oil and gas separator, characterized by, The oil-gas separator comprises a first shell, a second shell, an air inlet pipe, an air outlet pipe and an oil return pipe. The first shell has an opening, and an air inlet and an air outlet are arranged on the first shell. The second shell has an oil outlet, and a second bearing is arranged in the second shell. The second shell is welded to the first shell to form an oil-gas separation space. The air inlet pipe is welded to the air inlet of the first shell. The air outlet pipe is welded to the air outlet of the first shell.

2. A housing assembly for an oil and gas separator according to claim 1, wherein, The oil return pipe is welded to the oil outlet of the second shell.

3. A housing assembly for an oil and gas separator according to claim 2, wherein, The first shell, the second shell, the air inlet pipe, the air outlet pipe and the oil return pipe are all plastic parts.

4. A housing assembly for an oil and gas separator according to claim 3, wherein, The first bearing is injection molded in the first shell, and the second bearing is injection molded in the second shell.

5. A housing assembly for an oil and gas separator according to claim 1, wherein, The first shell has a connecting portion arranged near the air inlet of the first shell.

6. An oil and gas separator characterized by, The first bearing is injection molded in the connecting portion.

7. A gas-oil separator according to claim 6, characterized in that The connecting portion has a plurality of through holes for gas to enter.

8. A gas-oil separator according to claim 6, characterized in that The air inlet is arranged at one end of the first shell away from the air outlet. The oil outlet is arranged at the bottom of the second shell. The air inlet and the oil outlet are coaxially arranged. The oil-gas separator comprises the shell assembly and an oil-gas separation device arranged in the shell assembly. The oil-gas separation device comprises a rotating shaft arranged in the first bearing and the second bearing and a rotor sleeved on the rotating shaft. The rotor has an air inlet. An air inlet channel is formed between the air inlet of the rotor, the through holes of the connecting portion and the air inlet of the first shell. The air outlet pipe comprises a gas collecting port arranged in the shell assembly for collecting separated gas. The gas collecting port is arranged below the oil-gas separation device.

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