Volute air tightness detection equipment

Abstract

The utility model discloses volute air tightness detection equipment, which comprises a detection piece and a pressing piece, and is characterized in that the detection piece comprises a box body, the top surface of the box body is provided with an opening, a lower support plate is horizontally fixed on the inner bottom surface of the box body, an air outlet cylinder is vertically fixed on the lower support plate, and an upper support plate is horizontally fixed on the top surface of the air outlet cylinder; sealing gaskets are fixed to the adjacent end faces of the lower supporting plate and the upper supporting plate, the bottom end of the air outlet cylinder is fixedly communicated with an air inlet pipe, the bottom end of the air inlet pipe vertically penetrates through the bottom face of the box body, a pressing piece is vertically arranged on the top face of the box body, and an electric telescopic rod is horizontally fixed to the top of the end face of one side of the box body; and the output end of the electric telescopic rod penetrates through the inner wall of the box body and is vertically fixed with a blocking plate, so that the problems that a detection device can only detect the air tightness of the volute, but cannot display the position of a leakage point on the volute, the correction of volute production equipment in time according to the position of the leakage point in the later period is influenced, and the improvement of the production quality of the volute in the later period is not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbocharger volute detection equipment, and more specifically to a volute air tightness detection equipment. Background Art

[0002] The turbocharger volute casing needs to withstand high pressure and the temperature will rise when working, which requires the volute casing to be able to withstand high pressure. In addition, the turbine volute casing is made of cast iron and may have small cracks during production. These defects pose a great safety hazard when the turbine is working.

[0003] The existing announcement number is CN220206999U, and the name is a turbocharger volute air tightness test device, including a test bench and a sealing plate installed at the end of the volute, a vertical plate is fixed on the top of the test bench, a support frame is arranged on the inner side of the vertical plate, a clamping assembly is arranged in the support frame, the clamping assembly includes an electric telescopic rod installed on the outer side of the vertical plate, a connecting assembly is fixed at the output end of the electric telescopic rod, a screw is threadedly connected to the end of the connecting assembly, a pressure plate is fixed to the top of the screw, and a pad is arranged on the outer side of the support frame. The air tightness test is performed by vacuuming, which can better ensure the fit between the test equipment and the turbine casing compared with the pressurized test, and the sealing of the equipment itself is ensured when the turbine casing is clamped and fixed, thereby ensuring the sealing effect, and then ensuring the accuracy of the air tightness test.

[0004] However, during the above-mentioned volute casing air tightness test, the volute casing is hollowed out and the volute casing air tightness is determined by the change in the pressure gauge reading. However, the above-mentioned detection device can only detect the volute casing air tightness, but cannot display the position of the leak on the volute casing, which affects the subsequent timely correction of the volute casing production equipment according to the leak position, and is not conducive to improving the subsequent volute casing production quality. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a volute air tightness detection device, which overcomes the above-mentioned technical defects.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A volute air tightness detection device comprises a detection part and a pressing part, the detection part comprises a box body, the top surface of the box body is opened, and a lower support plate is horizontally fixed on the inner bottom surface of the box body, an air outlet is vertically fixed on the lower support plate, and an upper support plate is horizontally fixed on the top surface of the air outlet, and sealing gaskets are fixed on adjacent end surfaces of the lower support plate and the upper support plate, the bottom end of the air outlet is connected and fixed with an air inlet pipe, and the bottom end of the air inlet pipe vertically penetrates the bottom surface of the box body, a pressing part is vertically arranged on the top surface of the box body, an electric telescopic rod is horizontally fixed on the top of one end surface of the box body, and the output end of the electric telescopic rod penetrates the inner wall of the box body and is vertically fixed with a blocking plate, a support leg is vertically fixed on the bottom surface of the box body, and an air pump is vertically fixed on the support leg, and the air outlet end of the air pump is fixedly connected to the bottom end of the air inlet pipe.

[0010] Furthermore, the pressing member includes a bracket, the bracket is vertically fixed on the top surface of the box body, and a hydraulic rod is vertically fixed on the top surface of the bracket.

[0011] Furthermore, a pressure plate is horizontally fixed to the output end of the hydraulic rod.

[0012] Furthermore, a blocking column is horizontally fixed on the blocking plate, and a plurality of sealing grooves are transversely opened on the outer circumferential surface of the blocking column.

[0013] Furthermore, a rubber pad is fixed on the blocking plate, and a sealing ring is fixed in the sealing groove of the blocking column.

[0014] Furthermore, a water inlet pipe is horizontally fixed on the bracket, and one end of the water inlet pipe is connected and fixed to the water supply pipeline, and a drainage pipe is vertically connected and fixed on the bottom surface of the box.

[0015] Furthermore, valves are connected and fixed on the water inlet pipe and the drain pipe.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] During use, the volute casing to be inspected is inserted into the air outlet tube of the box body, the middle hole of the volute casing is sleeved between the lower support plate and the upper support plate, and the middle hole of the volute casing is blocked by the sealing gaskets on the lower support plate and the upper support plate, and then the electric telescopic rod is started to push the blocking plate to block the air inlet of the volute casing, and then water is added to the box body, and the air pump is started to drive external air into the air outlet tube through the air inlet pipe, and the air is guided into the volute casing through the through hole of the air outlet tube. After adding air with mobile pressure to the volute casing, observe whether the water at different positions of the box body has bubbles, and observe the leakage points of the box body, so as to facilitate the later production improvements, and then detect the air tightness of the volute casing, and at the same time display the position of the leakage point on the volute casing, to ensure that the volute casing production equipment is corrected in time according to the position of the leakage point in the later stage, which is conducive to improving the production quality of the later volute casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model as a whole in a disassembled state;

[0021] Figure 3 It is a schematic diagram of the structure of the detection part in the decomposed state in the implementation of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the blocking plate in the decomposed state in the implementation of the utility model;

[0023] Figure 5 It is a schematic structural diagram of the pressing member in the disassembled state in the implementation of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Detection part; 11. Box body; 111. Drain pipe; 12. Lower support plate; 13. Exhaust bag; 14. Upper support plate; 15. Sealing pad; 16. Electric telescopic rod; 161. Blocking plate; 162. Blocking column; 163. Sealing ring; 17. Support leg; 18. Air pump; 19. Inlet pipe; 2. Pressing part; 21. Bracket; 22. Hydraulic rod; 23. Pressing plate; 24. Water inlet pipe; 25. Valve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5A volute air tightness detection device includes a detection member 1 and a pressing member 2. The detection member 1 includes a box body 11, the top surface of the box body 11 is open, and a lower support plate 12 is horizontally fixed to the inner bottom surface of the box body 11, an air outlet 13 is vertically fixed to the lower support plate 12, and an upper support plate 14 is horizontally fixed to the top surface of the air outlet 13. Sealing pads 15 are fixed to the adjacent end surfaces of the lower support plate 12 and the upper support plate 14, and the bottom end of the air outlet 13 is connected to an inlet The air pipe 19 is provided, and the bottom end of the air inlet pipe 19 is vertically penetrated through the bottom surface of the box 11, and a pressing piece 2 is vertically provided on the top surface of the box 11, and an electric telescopic rod 16 is horizontally fixed to the top of one side end surface of the box 11, and the output end of the electric telescopic rod 16 passes through the inner wall of the box 11 and is vertically fixed with a blocking plate 161, and a leg 17 is vertically fixed to the bottom surface of the box 11, and an air pump 18 is vertically fixed on the leg 17, and the air outlet end of the air pump 18 is connected to the air inlet pipe. The bottom end of 19 is fixedly connected. During use, the volute to be tested is inserted into the air outlet tube 13 of the casing 11. The middle hole of the volute is sleeved between the lower support plate 12 and the upper support plate 14, and the middle hole of the volute is blocked by the sealing gasket 15 on the lower support plate 12 and the upper support plate 14. Then the electric telescopic rod 16 is started to push the blocking plate 161 to block the air inlet of the volute. Then water is added to the casing 11, and the air pump 18 is started to drive the external air to be introduced into the air outlet tube 13 through the air inlet pipe 19. The air is guided into the volute through the through hole of the air outlet tube 13. After the air with mobile pressure is added to the volute, observe whether the water at different positions of the casing 11 has bubbles, and observe the leakage points of the casing 11, so as to facilitate the later production improvement, and then detect the air tightness of the volute, and at the same time display the position of the leakage point on the volute, to ensure that the volute production equipment is corrected in time according to the position of the leakage point in the later stage, which is conducive to improving the production quality of the volute in the later stage.

[0028] See also Figure 5 The pressing member 2 includes a bracket 21, which is vertically fixed on the top surface of the box body 11, and a hydraulic rod 22 is vertically fixed on the top surface of the bracket 21, and a pressure plate 23 is horizontally fixed to the output end of the hydraulic rod 22, a blocking column 162 is horizontally fixed on the blocking plate 161, and a plurality of sealing grooves are horizontally opened on the outer circumferential surface of the blocking column 162, a rubber pad is fixed on the blocking plate 161, and a sealing ring 163 is fixed in the sealing groove of the blocking column 162. During use, the hydraulic rod 22 is started to push the pressure plate 23 downward to squeeze the volute sleeve on the air outlet cylinder 13, thereby pressing the center hole of the lower volute to be sealed and installed on the air outlet cylinder 13, and at the same time, the blocking column 162 on the blocking plate 161 is inserted into the air inlet port of the volute, and the rubber pad and the sealing ring 163 on the blocking plate 161 are pressed to ensure the sealing of the air inlet port of the volute.

[0029] See also Figure 3 and Figure 5A water inlet pipe 24 is horizontally fixed on the bracket 21, and one end of the water inlet pipe 24 is connected and fixed to the water supply pipeline. A drain pipe 111 is vertically connected and fixed on the bottom surface of the box body 11. Valves 25 are connected and fixed on the water inlet pipe 24 and the drain pipe 111. During use, the water inlet pipe 24 is used to introduce external water into the box body 11, and the drain pipe 111 is used to discharge the box body 11.

[0030] During use, the volute to be tested is inserted into the air outlet tube 13 of the casing 11, the middle hole of the volute is sleeved between the lower support plate 12 and the upper support plate 14, and the middle hole of the volute is blocked by the sealing gasket 15 on the lower support plate 12 and the upper support plate 14, then the electric telescopic rod 16 is started to push the blocking plate 161 to block the air inlet of the volute, and then water is added to the casing 11, and the air pump 18 is started to drive external air to be introduced into the air outlet tube 13 through the air inlet pipe 19, and the air is guided into the volute through the through hole of the air outlet tube 13. After adding air with mobile pressure into the volute, observe whether the water at different positions of the casing 11 has bubbles.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A turbine casing air tightness detection device, characterized in that: The invention comprises a detection member (1) and a pressing member (2), wherein the detection member (1) comprises a box body (11), the top surface of the box body (11) is open, and a lower support plate (12) is horizontally fixed on the inner bottom surface of the box body (11), an air outlet (13) is vertically fixed on the lower support plate (12), and an upper support plate (14) is horizontally fixed on the top surface of the air outlet (13), sealing pads (15) are fixed on adjacent end surfaces of the lower support plate (12) and the upper support plate (14), and an air inlet pipe (19) is connected and fixed to the bottom end of the air outlet pipe (13), and the air inlet pipe (19) is connected to the bottom end of the air outlet pipe (13). The bottom end of the housing (19) is vertically penetrated through the bottom surface of the box (11), the pressing member (2) is vertically arranged on the top surface of the box (11), an electric telescopic rod (16) is horizontally fixed to the top of one end surface of the box (11), and a blocking plate (161) is vertically fixed to the output end of the electric telescopic rod (16) through the inner wall of the box (11), a support leg (17) is vertically fixed to the bottom surface of the box (11), and an air pump (18) is vertically fixed on the support leg (17), and the air outlet end of the air pump (18) is fixedly connected to the bottom end of the air inlet pipe (19).

2. A turbine casing air tightness detection device according to claim 1, characterized in that: The pressing member (2) comprises a bracket (21), the bracket (21) is vertically fixed on the top surface of the box body (11), and a hydraulic rod (22) is vertically fixed on the top surface of the bracket (21).

3. A turbine casing air tightness detection device according to claim 2, characterized in that: A pressure plate (23) is horizontally fixed to the output end of the hydraulic rod (22).

4. A turbine casing air tightness detection device according to claim 3, characterized in that: A blocking column (162) is horizontally fixed on the blocking plate (161), and a plurality of sealing grooves are transversely opened on the outer circumferential surface of the blocking column (162).

5. A turbine casing air tightness detection device according to claim 4, characterized in that: A rubber pad is fixed on the blocking plate (161), and a sealing ring (163) is fixed in the sealing groove of the blocking column (162).

6. A turbine casing air tightness detection device according to claim 5, characterized in that: A water inlet pipe (24) is horizontally fixed on the bracket (21), and one end of the water inlet pipe (24) is connected and fixed to a water supply pipeline. A drainage pipe (111) is vertically connected and fixed to the bottom surface of the box body (11).

7. A turbine casing air tightness detection device according to claim 6, characterized in that: The water inlet pipe (24) and the drain pipe (111) are both connected and fixed with valves (25).

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