Nozzle air test device

Abstract

The invention discloses a nozzle air test device. The nozzle air test device comprises an air reservoir; the mounting disc is fixedly arranged at the top end of the air cylinder, and a through hole is formed in the mounting disc; the fixing assembly is arranged on the top surface of the mounting disc and located on the periphery of the through hole; the output end of the high-pressure gas source is communicated with a gas inlet in the bottom of one side of the gas storage cylinder through a high-pressure pipeline; the rectifying grid is fixedly arranged in the air storage cylinder and is positioned above the air inlet; and the temperature sensor is fixedly arranged on the inner wall of the air storage cylinder and is positioned above the rectification grid. The test device is high in stability of measuring the gas medium, ensures the test precision, can test nozzles of various specifications, and is good in applicability.

Description

Technical Field

[0001] The invention relates to the technical field of parts detection, and in particular to a nozzle air testing device. Background Art

[0002] The performance test of the nozzle is a necessary process in the manufacturing of gas turbine nozzles, and its test accuracy directly affects the nozzle characteristic test. In particular, the flow test of the auxiliary air is an important basis for judging whether the fuel entering the nozzle can be fully burned and provide appropriate temperature and pressure when the simulated engine is actually running.

[0003] The precision of the air test equipment ensures the accuracy of the nozzle performance test. The existing test bench has inaccurate test accuracy and low versatility. Due to the wide variety of nozzle products, more versatile test equipment is needed to meet the air test requirements of a variety of nozzles. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a nozzle air test device, which has high stability in measuring gas medium, ensures test accuracy, can test nozzles of various specifications, and has good applicability.

[0005] The present invention provides a nozzle air test device, comprising:

[0006] An air reservoir having an open top end and a closed bottom end;

[0007] A mounting plate, sealed and fixedly disposed on the top of the gas storage cylinder, and a through hole is opened on the mounting plate;

[0008] A fixing assembly, arranged on the top surface of the mounting plate and located at the periphery of the through hole, and used for docking and fixing the nozzle with the through hole;

[0009] A high-pressure gas source, the output end of which is connected to the gas inlet at the bottom of one side of the gas storage cylinder through a high-pressure pipeline;

[0010] A rectifying grid is fixedly arranged in the gas storage cylinder and located above the air inlet, and the rectifying grid divides the gas storage cylinder into two parts, an upper part and an lower part;

[0011] The temperature sensor is fixedly arranged on the inner wall of the gas storage cylinder and is located above the rectifying grid.

[0012] Furthermore, a lower flange is fixedly provided on the outer periphery of the top of the gas storage cylinder; an upper flange is fixedly provided on the outer periphery of the mounting plate, and the upper flange is fixedly connected to the lower flange by screws; a first sealing ring is provided between the gas storage cylinder and the mounting plate.

[0013] Furthermore, a handle is fixedly provided on the top surface of the mounting plate.

[0014] Furthermore, the fixing assembly includes a plurality of pressure rings with the same outer diameter and different inner diameters, the pressure rings are arranged above the through hole, the top surface of the mounting plate is located at the periphery of the through hole and is evenly distributed with a plurality of vertical quick clamps, and the top surface of the mounting plate is located at the periphery of the through hole and is provided with a circle of second sealing ring.

[0015] Furthermore, the high-pressure gas source is an air compressor, and a flow regulating valve is provided on the high-pressure pipeline.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The test device of the present invention is provided with an air storage cylinder, a mounting plate, a high-pressure air source, a rectifying grid and a temperature sensor. When performing an air test on a nozzle, the high-pressure air source provides a high-pressure gas medium, which is rectified by the rectifying grid and then ejected from the nozzle. The rectifying grid ensures the stability of the high-pressure gas medium. The temperature sensor monitors the temperature of the high-pressure gas medium flowing through the nozzle. When the temperature reaches the design requirement, effective measurement data is recorded, thereby ensuring the accuracy of the measurement.

[0018] (2) The nozzle is fixed to the through hole through a fixing assembly. The corresponding pressing ring is selected for nozzles of different specifications, and the pressing ring is put on the nozzle. The pressing ring is pressed by a vertical quick clamp to fix the nozzle. It is suitable for testing nozzles of various specifications and has good adaptability.

[0019] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 It is a structural schematic diagram of the nozzle air test device;

[0022] Figure 2 This is a schematic diagram of the structure of the installation disk.

[0023] Numbers in the figure: 1, gas cylinder; 2, mounting plate; 3, fixing assembly; 4, high-pressure pipeline; 5, rectifier grid; 6, temperature sensor;

[0024] 11. Air inlet; 12. Lower flange; 13. First sealing ring;

[0025] 21. through hole; 22. upper flange; 23. screw; 24. handle; 25. second sealing ring;

[0026] 31. Press ring; 32. Vertical quick clamp. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Please refer to Figure 1-2 , an embodiment of the present invention provides a nozzle air test device, comprising:

[0030] An air storage cylinder 1, the top end of which is open and the bottom end is closed;

[0031] The mounting plate 2 is sealed and fixedly disposed on the top of the gas storage cylinder 1, and a through hole 21 is opened on the mounting plate 2;

[0032] The fixing assembly 3 is arranged on the top surface of the mounting plate 2 and is located at the periphery of the through hole 21, and is used to dock and fix the nozzle with the through hole 21;

[0033] A high-pressure gas source, the output end of which is connected to the gas inlet 11 at the bottom of one side of the gas storage cylinder 1 through a high-pressure pipeline 4;

[0034] A rectifying grid 5 is fixedly arranged in the gas storage cylinder 1 and is located above the air inlet. The rectifying grid 5 divides the gas storage cylinder into two parts, an upper part and a lower part;

[0035] The temperature sensor 6 is fixedly arranged on the inner wall of the gas storage cylinder 1 and is located above the rectifying grid 5 .

[0036] In this embodiment, when the nozzle is subjected to an air test, the nozzle is first fixed to the through hole 21 by the fixing assembly 3, and then the high-pressure gas source is opened to inject the high-pressure gas medium into the gas storage cylinder 1. The high-pressure gas medium is rectified by the rectifying grid 5 and then ejected from the nozzle. After the temperature sensor 6 monitors the temperature of the high-pressure gas medium passing through the nozzle and reaches the design requirement, the test data is recorded to complete the nozzle air test. The operation is convenient and the nozzle air flow measurement is accurate.

[0037] In a preferred embodiment, if Figure 1As shown, a circle of lower flange 12 is fixedly provided on the outer periphery of the top of the air storage cylinder 1; a circle of upper flange 22 is fixedly provided on the outer periphery of the mounting plate 2, and the upper flange 22 is fixedly connected to the lower flange 12 by screws 23, ensuring the stability of the mounting plate 2; a first sealing ring 13 is provided between the air storage cylinder 1 and the mounting plate 2, ensuring the sealing between the mounting plate 2 and the air storage cylinder 1.

[0038] In a preferred embodiment, if Figure 1 and Figure 2 As shown, a handle 24 is fixedly provided on the top surface of the installation plate 2 to facilitate the movement of the installation plate 2 during installation and removal.

[0039] In a preferred embodiment, if Figure 1 and Figure 2 As shown, the fixing assembly 3 includes a plurality of pressure rings 31 with the same outer diameter and different inner diameters. The pressure ring 31 is arranged above the through hole 21. The top surface of the mounting plate 2 is located at the periphery of the through hole 21 and a plurality of vertical quick clamps 3 are evenly distributed thereon. The top surface of the mounting plate 2 is located at the periphery of the through hole 21 and a circle of second sealing rings 25 are arranged thereon.

[0040] In this embodiment, a suitable pressing ring 31 is selected according to the specifications of the nozzle to be tested, the bottom end of the nozzle is connected to the through hole 21, and then the pressing ring 31 is put on the nozzle. Then, the pressing ring 31 is pressed by the vertical quick clamp 32 to tighten and fix the nozzle. It is suitable for testing nozzles of various specifications and has good adaptability.

[0041] In a preferred embodiment, the high-pressure air source is an air compressor, and the high-pressure air output is stable; a flow regulating valve is provided on the high-pressure pipeline 4 to facilitate adjusting the air flow according to demand.

[0042] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A nozzle air test device, characterized in that: include: An air storage cylinder (1) having an open top end and a closed bottom end; A mounting plate (2) is fixedly and sealingly disposed on the top of the gas storage cylinder (1), and a through hole (21) is formed on the mounting plate (2); A fixing assembly (3) is arranged on the top surface of the mounting plate (2) and is located at the periphery of the through hole (21), and is used for docking and fixing the nozzle with the through hole (21); A high-pressure gas source, the output end of which is connected to the gas inlet (11) at the bottom of one side of the gas storage cylinder (1) through a high-pressure pipeline (4); A rectifying grid (5) is fixedly arranged in the gas storage cylinder (1) and is located above the air inlet (11), and the rectifying grid (5) divides the gas storage cylinder (1) into two parts, an upper part and an lower part; The temperature sensor (6) is fixedly arranged on the inner wall of the gas storage cylinder (1) and is located above the rectifying grid (5).

2. The nozzle air test device according to claim 1, characterized in that: A lower flange (12) is fixedly provided on the outer periphery of the top of the gas storage cylinder (1); an upper flange (22) is fixedly provided on the outer periphery of the mounting plate (2), and the upper flange (22) is fixedly connected to the lower flange (12) via screws (23); and a first sealing ring (13) is provided between the gas storage cylinder (1) and the mounting plate (2).

3. The nozzle air test device according to claim 2, characterized in that: A handle (24) is fixedly provided on the top surface of the mounting plate (2).

4. The nozzle air test device according to claim 1, characterized in that: The fixing assembly (3) comprises a plurality of pressure rings (31) having the same outer diameter and different inner diameters, the pressure rings (31) being arranged above the through hole (21), the top surface of the mounting plate (2) being located on the periphery of the through hole (21) and being evenly distributed with a plurality of vertical quick clamps (32), and the top surface of the mounting plate (2) being located on the periphery of the through hole (21) and being provided with a circle of second sealing rings (25).

5. The nozzle air test device according to claim 1, characterized in that: The high-pressure gas source is an air compressor, and a flow regulating valve is provided on the high-pressure pipeline (4).

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