Negative pressure leakage testing machine of oil-gas separator

Abstract

The utility model discloses a negative pressure leakage testing machine of an oil-gas separator. The device comprises a rack, a test platform, an assembly module which takes a gas inlet of the oil-gas separator as an alignment reference and is matched with the oil-gas separator in shape, an end sealing module which is positioned above the test platform and is flattened and sealed at an external interface of the oil-gas separator, and a negative pressure instrument which is communicated with the assembly module and can detect the pressure, wherein the outer interface comprises a first interface with a flush top surface and a second interface with an unfilled corner formed on the side edge, and the end sealing module comprises a flattening assembly which is flattened on the first interface and a filling and sealing assembly which fills the unfilled corner and is pressed on the second interface. On one hand, the gas inlet and the special module are used for carrying out erecting and positioning, port face attaching type end sealing is carried out on the basis of a flattening and filling mode, the negative pressure leakage performance of the oil-gas separator is rapidly and accurately obtained, and the leakage probability of the formed end sealing is low; and on the other hand, assembling and testing can be automatically carried out, the testing efficiency is high, and operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and specifically relates to a negative pressure leakage test machine for an oil-gas separator. Background Technology

[0002] like Figure 1 As shown, the oil-gas separator includes a body 1' with an air inlet m1' and an external interface m2'. The air inlet m1' is located at the bottom, and there are three external interfaces m2'. Two are located at the top, and the remaining one is located on one side and is encapsulated by a diaphragm. Of the two external interfaces m2' located at the top, one is flush with the top, and the other has a notch on the side of the same side as the diaphragm. Therefore, it is necessary to test the negative pressure leakage performance after the diaphragm is encapsulated.

[0003] Currently, the negative pressure leakage performance test is conducted by sealing the external interface m2′, then drawing air from the air inlet m1′ to form a negative pressure and maintaining it at a constant pressure for a certain time, and then measuring the pressure to obtain the negative pressure leakage performance of the oil-gas separator.

[0004] However, in existing tests, there are no dedicated modules and end caps. In particular, the side of the external interface m2′ has a notch. At the same time, if end caps or other methods are used during the end capping process, it not only increases the difficulty of disassembly and assembly but also increases the probability of pressure leakage from the end cap, thus making it impossible to accurately obtain the negative pressure leakage performance at the diaphragm. In addition, the time required for encapsulation and disassembly is long, resulting in low test efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a brand-new negative pressure leakage test machine for oil-gas separators.

[0006] To achieve the above objectives, the solution adopted by this utility model is as follows:

[0007] A negative pressure leakage tester for an oil-gas separator includes a frame, a test platform, an assembly module that uses the air inlet of the oil-gas separator as an alignment reference and matches the shape of the oil-gas separator, a sealing module located above the test platform and flattened and sealed to the outer interface of the oil-gas separator, and a negative pressure gauge that is connected to the assembly module and can detect the pressure. The outer interface includes a first interface with a flush top surface and a second interface with a notched corner on the side. The sealing module includes a flattening component that flattens on the first interface and a sealing component that fills the notched corner and presses it into the second interface.

[0008] Preferably, the assembly module includes a mounting template that matches the circumferential contour of the oil-gas separator, multiple fixed supports for fixing the mounting template above the test platform, and a flange located on the test platform that connects with the air inlet, wherein the oil-gas separator is mounted on the mounting template from top to bottom, and the flange is aligned and connected to the air inlet.

[0009] In some specific embodiments, when the oil-gas separator is mounted and the flange is aligned with the air inlet, the top surface of the first interface is horizontal; the top surface of the second interface is horizontal, and a notch is formed on the front side. This facilitates the fitting and sealing of the two interface sections.

[0010] According to a specific embodiment and preferred aspect of this utility model, the flattening assembly includes an upper frame plate, a downward pressure telescopic rod mounted on the frame plate, and a pressure head formed at the bottom of the downward pressure telescopic rod, wherein the pressure head conforms to the first interface to form a seal. Based on the downward pressure positioning and downward pressure sealing method, not only is the positioning stability of the oil-gas separator improved, but the probability of leakage formed at the sealed end is also reduced.

[0011] Preferably, the sealing assembly includes a filling module located on the notch side of the second interface and movable to fill the notch; a lateral movement actuator for pushing the filling module to move back and forth to seal the notch; an upper pressure sealing module located above the second interface and movable up and down; and a lifting actuator for driving the upper pressure sealing module to move up and down. The filling module seals the front side, and the upper pressure sealing module works in conjunction to complete the filling and sealing of the notch.

[0012] Preferably, the top surface of the filling module is flush with the top surface of the second interface to facilitate the sealing of the second interface.

[0013] According to another specific embodiment and preferred aspect of this utility model, an abutting module is further provided on the rear side of the second interface, which abuts against the second interface, wherein the contact surface formed by the abutting module matches the outer contour of the second interface. The abutting module prevents displacement of the oil-gas separator caused by the leveling operation.

[0014] Preferably, the contact module and the filling module are matched using alignment posts and alignment holes, and the front side of the second interface is clamped and filled, with the top surfaces of the filling module, the contact module, and the second interface flush. Based on the clamping positioning, the resulting filling effect is good, and it is more conducive to sealing when multiple flush planes are in contact.

[0015] In addition, the contact module is set to move horizontally via a telescopic cylinder mounted on the test platform.

[0016] Preferably, a detection window is provided on the front side of the frame, and the negative pressure leakage tester also includes a chamber door that can move in the vertical direction, and a shifter for opening or closing the window to drive the chamber door to move up and down.

[0017] Due to the application of the above-mentioned technology and equipment solutions, this utility model has the following advantages compared with the prior art:

[0018] Existing negative pressure leakage performance tests for oil-gas separators lack dedicated modules and end caps. Furthermore, the external interface has notches on the sides. Using plugs or similar methods for end capping not only increases the difficulty of assembly and disassembly but also increases the probability of pressure leakage from the end cap, making it impossible to accurately obtain the negative pressure leakage performance at the diaphragm. In addition, the long assembly and disassembly time results in low testing efficiency. This application addresses these shortcomings by providing a comprehensive design for a negative pressure leakage testing machine for oil-gas separators, cleverly resolving these deficiencies. The oil-gas separator is then mounted on a... The air inlet of the oil-gas separator is mounted on an assembly module that is aligned with the positioning reference and matches the shape of the oil-gas separator. Then, a flattening component and a sealing component are used to seal the first and second interfaces respectively. Then, negative pressure is formed through the air inlet, and the pressure is detected at a set time to obtain the negative pressure leakage performance. Therefore, this utility model uses an air inlet and a special module for mounting and positioning, and implements port surface fitting sealing based on flattening and sealing methods. This not only quickly and accurately obtains the negative pressure leakage performance of the oil-gas separator, but also results in a low probability of leakage at the sealed end. On the other hand, it can automate assembly and testing, with high testing efficiency and convenient operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oil-gas separator in the background art;

[0020] Figure 2 This is a schematic diagram of the negative pressure leakage test machine for the oil-gas separator in this embodiment;

[0021] Figure 3 for Figure 2 A partial structural diagram;

[0022] Figure 4 for Figure 3 Schematic diagram of a local structure in the middle;

[0023] Figure 5 for Figure 4 Front view diagram;

[0024] Figure 6 for Figure 5 A left-view diagram;

[0025] The components include: 1. Frame; 2. Test platform; 3. Assembly module; 30. Erection template; 31. Fixed support column; 32. Flange; 4. End sealing module; 40. Flattening assembly; 400. Frame plate; 401. Downward telescopic rod; 402. Pressure head; 41. Sealing assembly; 410. Flattening module; 411. Lateral movement actuator; 412. Upward sealing module; 413. Lifting actuator; 5. Negative pressure gauge; 6. Contact module; 7. Telescopic cylinder; 8. Chamber door; 9. Shifter; 10. Detection window; M. Oil-gas separator; m 1， m1′, air intake; m 2， m2′, external interface; m 21 First interface; m 22 1. Second interface; 1'. Device body. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one piece of that feature. In the description of this application, "multiple pieces" means at least two pieces, such as two pieces, three pieces, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0031] like Figures 2 to 6 As shown, the negative pressure leakage tester for the oil-gas separator in this embodiment includes a frame 1, a test platform 2, an assembly module 3 that uses the air inlet m1 of the oil-gas separator M as the alignment reference and matches the shape of the oil-gas separator M, a sealing module 4 located above the test platform 2 and flattened and sealed to the outer interface m2 of the oil-gas separator M, and a negative pressure meter 5 that is connected to the assembly module 3 and can detect the pressure.

[0032] Specifically, the assembly module 3 includes a mounting template 30 that matches the circumferential contour of the oil-gas separator M, multiple fixed supports 31 for fixing the mounting template 30 above the test platform 2, and a flange 32 located on the test platform 2 and connected to the air inlet m1. The oil-gas separator M is mounted on the mounting template 30 from the top and bottom, and the flange 32 is aligned and connected to the air inlet m1.

[0033] External interface m2 includes a first interface m with its top surface flush with the surface. 21 The second interface m with a missing corner is formed with the side. 22 The end-capping module 4 includes a flattened first interface m21 The flattening component 40 fills the missing corner and presses it onto the second interface m. 22 The sealing component 41.

[0034] The flattening assembly 40 includes an upper frame plate 400, a downward pressing telescopic rod 401 mounted on the frame plate 400, and a pressing head 402 formed at the bottom of the downward pressing telescopic rod 401, wherein the pressing head 402 is in contact with the first interface m. 21 A seal is formed. Based on the downward pressure positioning and downward pressure sealing method, not only is the positioning stability of the oil-gas separator improved, but the probability of leakage formed at the sealing end is also reduced. The sealing assembly 41 includes components located at the second interface m. 22 The system includes a filling module 410 that can move to fill the gap, a lateral moving force unit 411 that pushes the filling module 410 back and forth to seal it, an upper pressing sealing module 412 located above the second interface m22 and capable of moving up and down, and a lifting force unit 413 that drives the upper pressing sealing module 412 to move up and down. The filling module seals the front side, and the upper pressing sealing module works in conjunction with it to complete the filling and sealing of the missing corner.

[0035] In some specific embodiments, when the oil-gas separator M is mounted and the flange 32 is aligned and connected to the air inlet m1, the first interface m 21 The top surface is horizontally set; the second interface m 22 The top surface is horizontally positioned, with a notch on the front. This facilitates a close-fitting seal between the two interface sections. The top surface of the filling module 410 is aligned with the second interface m. 22 The top surface is flush with the surface to facilitate sealing of the second interface.

[0036] In this example, a feature is provided on the rear side of the second interface m22 that can abut against the second interface m 22 The contact module 6 on the upper part, wherein the contact surface formed by the contact module 6 and the second interface m 22 The outer contour is matched. The contact module prevents displacement of the oil-gas separator during the filling operation. The contact module 6 and the filling module 410 are matched using alignment posts and alignment holes, and the second interface m... 22 Front filling clamp, filling module 410, contact module 6, second interface m 22 The top surface is flush with the surface. Based on clamping positioning, the resulting filling effect is good, and it is more conducive to sealing when multiple flush surfaces are aligned. Furthermore, the contact module 6 is horizontally moved by the telescopic cylinder 7 mounted on the test platform 2.

[0037] In addition, a detection window 10 is provided on the front side of the frame 1. The negative pressure leakage tester also includes a chamber door 8 that can move along the vertical direction, and a shifter 9 that drives the chamber door 8 to move up and down to open or close the window. The shifter 9 is a commonly used annular pulley.

[0038] In summary, by using a negative pressure leakage testing machine for an oil-gas separator, the oil-gas separator is mounted on an assembly module that uses the air inlet of the oil-gas separator as a positioning reference and matches the shape of the oil-gas separator. Then, a flattening component and a sealing component are used to seal the first and second interfaces, respectively. Negative pressure is then generated through the air inlet, and the pressure is measured at a set time to obtain the negative pressure leakage performance. Therefore, this invention, on the one hand, uses an air inlet and a dedicated module for mounting and positioning, and implements a face-fitting sealing method based on flattening and sealing, which not only quickly and accurately obtains the negative pressure leakage performance of the oil-gas separator, but also results in a low probability of leakage at the sealed end; on the other hand, it can automate assembly and testing, with high testing efficiency and convenient operation; and thirdly, the oil-gas separator... When the flange is aligned and connected to the air inlet, the top surface of the first interface is horizontal; the top surface of the second interface is horizontal, and a notch is formed on the front side to facilitate the fitting and sealing of the two interface sections; the fourth aspect is based on the method of downward positioning and downward sealing, which not only improves the positioning stability of the oil-gas separator, but also reduces the probability of leakage formed by the sealing end; the front side is sealed by filling, and the upper sealing module is used to complete the filling and sealing of the missing corner; the anti-collision module avoids the displacement of the oil-gas separator caused by the filling operation; the clamping positioning results in a good filling effect, and it is more conducive to fitting and sealing in the fitting of multiple flush planes; the fifth aspect is based on the movement of the annular pulley to open or close the chamber door, which facilitates the insertion of the oil-gas separator into the negative pressure leakage test machine.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A negative pressure leakage tester for an oil-gas separator, characterized in that: It includes a frame, a test platform, an assembly module that uses the air inlet of the oil-gas separator as a positioning reference and matches the shape of the oil-gas separator, a sealing module located above the test platform and flattened and sealed to the external interface of the oil-gas separator, and a negative pressure gauge that communicates with the assembly module and can detect the pressure. The external interface includes a first interface with a flat top surface and a second interface with a notched corner on the side. The sealing module includes a flattening component that flattens on the first interface and a sealing component that fills the notched corner and presses it onto the second interface.

2. The negative pressure leakage test machine for the oil-gas separator according to claim 1, characterized in that: The assembly module includes a mounting template that matches the circumferential contour of the oil-gas separator, multiple fixed supports for fixing the mounting template above the test platform, and a flange located on the test platform that connects with the air inlet. The oil-gas separator is mounted on the mounting template from top to bottom, and the flange is aligned and connected to the air inlet.

3. The negative pressure leakage test machine for the oil-gas separator according to claim 2, characterized in that: When the oil-gas separator is mounted and the flange is aligned with the air inlet, the top surface of the first interface is horizontal; the top surface of the second interface is horizontal, and a notch is formed on the front side.

4. The negative pressure leakage test machine for the oil-gas separator according to claim 3, characterized in that: The flattening assembly includes an upper frame plate, a downward telescopic rod mounted on the frame plate, and a pressure head formed at the bottom of the downward telescopic rod, wherein the pressure head fits into the first interface to form a seal.

5. The negative pressure leakage test machine for the oil-gas separator according to claim 3 or 4, characterized in that: The sealing assembly includes a filling module located on the notch side of the second interface and movable to fill the notch, a lateral movement force for pushing the filling module to move back and forth to seal, an upper pressure sealing module located above the second interface and movable up and down, and a lifting force for driving the upper pressure sealing module to move up and down.

6. The negative pressure leakage test machine for the oil-gas separator according to claim 5, characterized in that: The top surface of the leveling module is flush with the top surface of the second interface.

7. The negative pressure leakage test machine for the oil-gas separator according to claim 5, characterized in that: A contact module is also provided on the rear side of the second interface, which can abut against the second interface, wherein the contact surface formed by the contact module matches the outer contour of the second interface.

8. The negative pressure leakage test machine for the oil-gas separator according to claim 7, characterized in that: The abutting module and the leveling module are matched with alignment posts and alignment holes, and the front side of the second interface is leveled and clamped. The top surfaces of the leveling module, the abutting module, and the second interface are flush.

9. The negative pressure leakage test machine for the oil-gas separator according to claim 8, characterized in that: The aforementioned contact module is configured to move horizontally via a telescopic cylinder mounted on the test platform.

10. The negative pressure leakage test machine for the oil-gas separator according to claim 1, characterized in that: The negative pressure leakage tester is provided with a detection window on the front side of the frame and also includes a chamber door that can move in the vertical direction and a shifter for opening or closing the window to drive the chamber door to move up and down.

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