Turbine shell leakage detection device

Abstract

The utility model discloses a turbine shell leakage detection device which comprises a rack, a mounting seat and a fixing assembly. The rack comprises a bottom first mounting plate and an upper second mounting plate, the mounting base comprises a bottom plate, a circular truncated cone, a flange plate and a limiting column, the fixing assembly comprises a plurality of air cylinders, sealing gaskets are arranged at the ends of telescopic rods of the air cylinders, and the positions of the sealing gaskets correspond to the positions of openings of a turbine shell. The device has the beneficial effects that the mounting base is arranged, and then the turbine shell is placed on the mounting base, so that the limiting column corresponds to an internal hole of the turbine shell, and it is ensured that the turbine shell cannot be dislocated in the horizontal direction under the action of external force; the sealing gaskets are arranged on the turbine shell, then the air cylinders drive the sealing gaskets to plug the openings in the turbine shell, then the limiting columns are arranged to prevent the rotation phenomenon in the plugging process, and finally gas is injected into the turbine shell through the air cylinders to detect the sealing performance and whether the leakage phenomenon exists or not.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing detection, in particular to a turbine casing leakage detection device. Background Art

[0002] The turbine housing is generally produced by casting into a blank, and then undergoes a series of finishing processes such as turning to finally obtain the finished product. The turbine blades are then added to the inside of the turbine housing and assembled with other parts to finally obtain specific equipment such as a turbocharger.

[0003] Generally, a turbine shell includes an air inlet, an air outlet and side connection surfaces. The turbine shell that is finally processed needs to be tested for sealing. On the one hand, it is used to detect whether the connection surfaces have achieved the predetermined processing effect. On the other hand, it is also used to detect whether small holes are generated during the casting process due to process reasons, causing leakage in the turbine shell. Traditional turbine shell testing is to seal each connection surface and connection hole and then place it in liquid to see if bubbles are generated. Such testing efficiency is relatively poor. Utility Model Content

[0004] (I) Technical solution

[0005] In order to solve the above technical problems, the utility model provides a turbine casing leakage detection device.

[0006] The specific technical solutions are:

[0007] A turbine casing leakage detection device comprises a frame, a mounting seat and a fixing assembly;

[0008] The frame comprises a first mounting plate at the bottom and a second mounting plate at the top, the first mounting plate and the second mounting plate are parallel, and the first mounting plate and the second mounting plate are fixedly connected by a support column;

[0009] The mounting seat is fixed on the first mounting plate and is used to support the turbine housing. Specifically, it includes a bottom plate, a truncated cone, a flange and a limiting column. The centers of the truncated cone, the flange and the limiting column are on the same vertical line. An air hole is provided inside the bottom plate. One end of the air hole extends to the side of the bottom plate and the other end extends to the flange mounting position. The flange is also provided with a corresponding air hole. A rubber ring is provided at the connection between the side of the flange and the truncated cone. Vertical protrusions are provided at equal angles on the outer wall of the limiting column. The diameter of the circumscribed circle formed by the protrusion is the same as the diameter of the circular ring on the inner wall of the turbine housing.

[0010] The fixing assembly includes a plurality of cylinders, and sealing pads are provided at the ends of the cylinder telescopic rods. The positions of the sealing pads correspond to the positions of the openings of the turbine housing. It also includes a plurality of limit rods for preventing the turbine housing from rotating on the mounting seat.

[0011] Furthermore, the fixing assembly includes a first cylinder, which is mounted on the second mounting plate and directed downward. An adapter plate is provided at the end of the telescopic rod of the first cylinder. The sealing gasket is fixed to the lower part of the adapter plate through an elastic adjusting member, and the sealing gasket corresponds to the air inlet of the turbine housing.

[0012] Furthermore, the elastic adjustment member includes a guide rod, a shell, a spring and an adjusting bolt. One end of the shell is fixed to the lower part of the adapter plate, and the other end is plugged with the guide rod. The spring is sleeved on the guide rod. One end of the spring is in contact with the shell, and the other end is in contact with the adjusting bolt.

[0013] Furthermore, it also includes a second cylinder and a third cylinder, the sealing gasket is fixed to the end of the second cylinder, the sealing gasket corresponds to the position of the air outlet of the turbine housing, and the end of the third cylinder is provided with an elastic gasket.

[0014] Furthermore, a guide column is provided on the second mounting plate, and the guide column passes through the second mounting plate and one end of the guide column is fixed on the adapter plate.

[0015] (II) Beneficial effects

[0016] Compared with the prior art, the utility model sets a mounting seat and then places the turbine casing on the mounting seat so that the limit column corresponds to the internal hole of the turbine casing, ensuring that the turbine casing will not be dislocated in the horizontal direction due to external force, and then drives each sealing gasket through the cylinder to seal each opening on the turbine casing, and then sets a limit column to prevent rotation during the sealing process, and finally injects gas into the interior through the cylinder to detect the sealing and whether there is leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For use schematic diagram;

[0020] Figure 3 It is a schematic diagram of the cooperation between the turbine housing and the mounting seat;

[0021] Figure 4 It is a schematic diagram of the structure of the elastic adjusting member;

[0022] In the figure: 1-frame. 2-mounting seat, 3-fixing assembly, 101-first mounting plate, 102-second mounting plate, 103-support column, 201-bottom plate, 202-round table, 203-flange, 204-limiting column, 205-air hole, 206-rubber ring, 207-protrusion, 301-sealing pad, 302-limiting rod, 303-first cylinder, 304-adapter plate, 305-elastic adjustment member, 3051-guide rod, 3052-housing, 3053-spring, 3054-adjusting bolt, 306-second cylinder, 307-third cylinder. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. The described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the relevant existing technologies, a general turbine shell includes an air inlet, an air outlet and side connection surfaces, and the finally processed turbine shell needs to be tested for sealing. On the one hand, it is used to detect whether the connection surfaces have achieved the predetermined processing effect. On the other hand, it is also used to detect whether small holes are generated during the casting process due to process reasons, causing leakage in the turbine shell. The traditional turbine shell inspection is to seal each connection surface and connection hole and then place it in liquid to see whether bubbles are generated. Such inspection efficiency is relatively poor.

[0025] In order to solve the problems existing in the related prior art, the utility model proposes a turbine casing leakage detection device. The principle and structure of the utility model are described in detail below in conjunction with the drawings and embodiments.

[0026] See also Figures 1 to 4 , the utility model provides a turbine casing leakage detection device, comprising a frame 1, a mounting seat 2 and a fixing assembly 3;

[0027] The rack 1 includes a first mounting plate 101 at the bottom and a second mounting plate 102 at the top. The first mounting plate 101 and the second mounting plate 102 are parallel to each other and are fixedly connected by a support column 103.

[0028] The mounting seat 2 is fixed on the first mounting plate 101 and is used to support the turbine housing. It specifically includes a base plate 201, a truncated cone 202, a flange 203 and a limiting column 204. The centers of the truncated cone 202, the flange 203 and the limiting column 204 are on the same vertical line. An air hole 205 is provided inside the base plate 201. One end of the air hole 205 extends to the side of the base plate 201 and the other end extends to the installation position of the flange 203. The flange 203 is also provided with a corresponding air hole. A rubber ring 206 is provided at the connection between the side of the flange 203 and the truncated cone 202. The outer wall of the limiting column 204 is provided with vertical protrusions 207 at equal angles. The diameter of the circumscribed circle formed by the protrusion 207 is the same as the diameter of the circular ring on the inner wall of the turbine housing.

[0029] The fixing assembly 3 includes a plurality of cylinders, and sealing gaskets 301 are provided at the ends of the cylinder telescopic rods. The positions of the sealing gaskets 301 correspond to the positions of the openings of the turbine housing. It also includes a plurality of limiting rods 302 for preventing the turbine housing from rotating on the mounting seat 2.

[0030] Specifically, the fixing assembly 3 includes a first cylinder 303, which is mounted on the second mounting plate 102 and directed downward. An adapter plate 304 is provided at the end of the telescopic rod of the first cylinder 303. A sealing gasket 301 is fixed to the lower part of the adapter plate 304 through an elastic adjusting member 305, and the sealing gasket 301 corresponds to the air inlet of the turbine housing.

[0031] The elastic adjustment member 305 includes a guide rod 3051, a shell 3052, a spring 3053 and an adjusting bolt 3054. One end of the shell 3052 is fixed to the lower part of the adapter plate 304, and the other end is plugged with the guide rod 3051. The guide rod 3051 is sleeved with a spring 3053. One end of the spring 3053 is in contact with the shell 3052, and the other end is in contact with the adjusting bolt 3054.

[0032] It also includes a second cylinder 306 and a third cylinder 307. A sealing gasket 301 is also fixed to the end of the second cylinder 306, that is, a sealing gasket 301 is fixed to the end of the first cylinder 303 and the second cylinder 306, respectively corresponding to the air inlet and the air outlet of the turbine shell. The sealing gasket 301 corresponds to the position of the air outlet of the turbine shell, and an elastic pad is provided at the end of the third cylinder 307.

[0033] A guide post 104 is further provided on the second mounting plate 102 . The guide post 104 passes through the second mounting plate 102 and one end of the guide post 104 is fixed on the adapter plate 304 .

[0034] Specific working principle: first ensure that the first cylinder 303, the second cylinder 306 and the third cylinder 307 are all in a retracted state, then place the turbine shell on the mounting seat 2 with the connecting surface facing downward, so that the internal annular contact surface of the turbine shell is respectively connected to the side of the truncated cone 202 and the side of the flange 203. At this time, rotate the turbine shell so that the outer wall of the turbine shell is connected to the limiting rod 302. On the one hand, it prevents rotation when the subsequent cylinder is pressurized. On the other hand, the limiting rod 302 also plays a positioning role to ensure that the cylinder drives the sealing gasket 301 to contact the opening without deviation. Then the first cylinder 303, the second cylinder 306 and the third cylinder 307 extend to drive the corresponding sealing gaskets respectively. 301 is sealed corresponding to the air inlet and outlet of the turbine shell, and at the same time, the third cylinder 307 drives the elastic pad to extend to ensure the force balance of the turbine shell and prevent rotation. At this time, the various openings of the turbine shell are sealed, and at the same time, the lower opening of the turbine shell is sealed through the cone 202, flange 203 and rubber ring 206. At this time, compressed air is introduced through the air hole 205, and whether the turbine shell has a leakage problem is detected by observing whether there is any change. During the process, the guide rod 3051 and the outer shell 3052 slide against each other under the action of pressure and the elastic force of the spring 3053 to balance the pressure, ensure the sealing and prevent the sealing gasket from being damaged due to excessive cylinder pressure.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A turbine casing leakage detection device, characterized in that: It comprises a frame (1), a mounting base (2) and a fixing assembly (3); The frame (1) comprises a first mounting plate (101) at the bottom and a second mounting plate (102) at the top, the first mounting plate (101) and the second mounting plate (102) being parallel, and the first mounting plate (101) and the second mounting plate (102) being fixedly connected via a support column (103); The mounting seat (2) is fixed on the first mounting plate (101) and is used to support the turbine housing. It specifically comprises a base plate (201), a truncated cone (202), a flange (203) and a limiting column (204). The centers of the truncated cone (202), the flange (203) and the limiting column (204) are on the same vertical line. An air hole (205) is provided inside the base plate (201). One end of the air hole (205) extends to the side of the base plate (201) and the other end extends to the mounting position of the flange (203). The flange (203) is also provided with a corresponding air hole. A rubber ring (206) is provided at the connection between the side of the flange (203) and the truncated cone (202). The outer wall of the limiting column (204) is provided with vertical protrusions (207) at equal angles. The diameter of the circumscribed circle formed by the protrusions (207) is the same as the diameter of the circular ring on the inner wall of the turbine housing. The fixing assembly (3) comprises a plurality of cylinders, and sealing pads (301) are provided at the ends of the cylinder telescopic rods. The positions of the sealing pads (301) correspond to the positions of the openings of the turbine housing. The fixing assembly (3) also comprises a plurality of limiting rods (302) for preventing the turbine housing from rotating on the mounting seat (2).

2. A turbine casing leakage detection device according to claim 1, characterized in that: The fixing assembly (3) comprises a first cylinder (303), the first cylinder (303) being mounted on the second mounting plate (102) and facing downward, an adapter plate (304) being provided at the end of the telescopic rod of the first cylinder (303), the sealing gasket (301) being fixed to the lower part of the adapter plate (304) via an elastic adjusting member (305), and the sealing gasket (301) corresponding to the air inlet of the turbine housing.

3. A turbine casing leakage detection device according to claim 2, characterized in that: The elastic adjustment member (305) comprises a guide rod (3051), a housing (3052), a spring (3053) and an adjustment bolt (3054); one end of the housing (3052) is fixed to the lower part of the adapter plate (304), and the other end is plugged with the guide rod (3051); the guide rod (3051) is sleeved with the spring (3053); one end of the spring (3053) is in contact with the housing (3052), and the other end is in contact with the adjustment bolt (3054).

4. A turbine casing leakage detection device according to claim 2, characterized in that: It also includes a second cylinder (306) and a third cylinder (307), the sealing gasket (301) is also fixed to the end of the second cylinder (306), the sealing gasket (301) corresponds to the position of the turbine housing air outlet, and the end of the third cylinder (307) is provided with an elastic gasket.

5. A turbine casing leakage detection device according to claim 2, characterized in that: The second mounting plate (102) is also provided with a guide column (104), the guide column (104) passes through the second mounting plate (102) and one end of the guide column (104) is fixed on the adapter plate (304).

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