Thrust clearance measuring tool for centrifugal compressor

Abstract

The utility model discloses a thrust clearance measuring tool for a centrifugal compressor, which comprises a tool main body, a main body positioning hole, a locking device, a displacement sensor positioning hole and a displacement sensor, and is characterized in that the tool main body is connected and fixed on a to-be-measured centrifugal compressor shell which is not provided with a volute through a bolt at the main body positioning hole; the displacement sensor accurately positions the center position through the displacement sensor positioning hole and locks the displacement sensor at the locking device through a bolt. According to the thrust clearance measuring tool for the centrifugal compressor, the thrust clearance of a rotor system of the centrifugal compressor can be measured efficiently and accurately, additional devices are not needed, measurement can be completed through a single tool, time is saved, efficiency is improved, the operation burden is relieved through the lightweight design, the requirements for rapidness and accuracy are met in mass production, and efficiency and product consistency are improved.

Description

Technical Field

[0001] This utility model relates to a thrust clearance measuring fixture for centrifugal compressors, belonging to the field of centrifugal compressor technology. Background Technology

[0002] Thrust clearance is used to control the axial displacement of the turbine expander rotor system and prevent direct contact between the rotor system and stator components. If the clearance is too small, mechanical vibration may cause friction between the rotor system and stator components, leading to severe wear or even component failure. If the clearance is too large, high-pressure gas will leak from the working chamber, reducing the efficiency of expansion. Therefore, after the rotor system is installed, the thrust clearance must be measured to ensure that it meets the requirements.

[0003] When measuring thrust clearance, a displacement sensor is required. To ensure the accuracy of the measurement results, the measurement point of the displacement sensor must be aligned with the center of the rotor system during the measurement process. The traditional alignment method usually involves visual inspection. This method is not only difficult to accurately measure the thrust clearance of turbine machinery, but also requires a long time to align the center. It is extremely inefficient, especially when measuring turbine machinery produced in large quantities. Utility Model Content

[0004] This invention provides a thrust clearance measuring fixture for centrifugal compressors, which can effectively realize the rapid measurement of thrust clearance of centrifugal compressors, not only significantly improving the measurement efficiency, but also ensuring the accuracy of the measurement results.

[0005] To solve the above-mentioned technical problems, this utility model discloses a thrust clearance measuring fixture for centrifugal compressors, including a fixture body, a body positioning hole, a locking device, a displacement sensor positioning hole, and a displacement sensor. The fixture body is fixed to the centrifugal compressor housing to be measured without a volute by bolts at the body positioning hole. The displacement sensor is accurately positioned at the center position through the displacement sensor positioning hole and locked at the locking device by bolts.

[0006] As a preferred technical solution of this utility model, the main body of the tooling is hemispherical, and the diameter of the hemispherical is designed according to the size of the impeller to avoid interference with the impeller.

[0007] As a preferred technical solution of this utility model, the size of the displacement sensor positioning hole is designed to match the displacement sensor, so as to ensure that the displacement sensor is accurately positioned and can be stably locked at the locking device by bolts.

[0008] As a preferred technical solution of this utility model, the tooling body is manufactured by 3D printing.

[0009] As a preferred technical solution of this utility model, the position and size of the main positioning hole are designed to match the mounting holes on the centrifugal compressor housing.

[0010] The beneficial effects achieved by this utility model are as follows: This thrust clearance measuring fixture for centrifugal compressors can efficiently and accurately measure the thrust clearance of the centrifugal compressor rotor system; the fixture optimizes the measurement method, eliminating the need for any additional positioning or moving devices, and the thrust clearance measurement of the centrifugal compressor rotor system can be completed solely with this fixture, significantly improving work efficiency and saving a lot of time; the lightweight design of the fixture itself effectively reduces the operational burden on workers and lowers labor intensity; in the process of mass production of turbine machinery, it can meet the high requirements for rapid and accurate thrust clearance measurement, not only improving production efficiency but also ensuring the consistency and stability of product quality. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Tooling body; 2. Body positioning hole; 3. Locking device; 4. Displacement sensor positioning hole; 5. Displacement sensor. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] like Figure 1 As shown, this utility model provides a thrust clearance measuring fixture for a centrifugal compressor, including a fixture body 1, a body positioning hole 2, a locking device 3, a displacement sensor positioning hole 4, and a displacement sensor 5. The fixture body 1 is fixed to the turbine housing to be measured by bolts at the body positioning hole 2, and the displacement sensor 5 is accurately positioned at the center position through the displacement sensor positioning hole 4 and locked at the locking device 3 by bolts.

[0016] Furthermore, the main body of the tooling 1 is hemispherical, and the diameter of the hemispherical is designed according to the size of the impeller to avoid interference with the impeller.

[0017] Furthermore, the size of the displacement sensor positioning hole 4 is designed to match the displacement sensor 5, ensuring that the displacement sensor 5 is accurately positioned and can be stably locked at the locking device 3 by bolts.

[0018] Furthermore, the main body of the tooling 1 is manufactured using 3D printing.

[0019] Furthermore, the position and size of the main positioning hole 2 are designed to match the mounting holes on the centrifugal compressor housing.

[0020] The working principle of this utility model is as follows: During operation, the main body 1 of the tooling is fixed to the housing of the centrifugal compressor to be measured without the volute installed by bolts at the main body positioning hole 2. Then, the displacement sensor 5 can be installed. The displacement sensor 5 accurately positions the center position through the displacement sensor positioning hole 4 and is locked at the locking device 3 by bolts. Then, the measurement of the thrust clearance of the rotor system can begin.

[0021] This utility model presents a thrust clearance measuring fixture for centrifugal compressors, which can efficiently and accurately measure the thrust clearance of the centrifugal compressor rotor system. The fixture optimizes the measurement method, eliminating the need for any additional positioning or moving devices. The measurement of the thrust clearance of the centrifugal compressor rotor system can be completed using only this fixture, significantly improving work efficiency and saving considerable time. The lightweight design of the fixture itself effectively reduces the operational burden on workers and lowers labor intensity. In the mass production of turbine machinery, it meets the high requirements for rapid and accurate thrust clearance measurement, not only improving production efficiency but also ensuring the consistency and stability of product quality.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thrust clearance measuring fixture for a centrifugal compressor, comprising a fixture body (1), a body positioning hole (2), a locking device (3), a displacement sensor positioning hole (4), and a displacement sensor (5), characterized in that, The tooling body (1) is fixed to the turbine housing to be measured by bolts at the main positioning hole (2). The displacement sensor (5) is accurately positioned at the center position through the displacement sensor positioning hole (4) and locked at the locking device (3) by bolts.

2. The thrust clearance measuring fixture for a centrifugal compressor according to claim 1, characterized in that, The tooling body (1) is hemispherical, and the diameter of the hemispherical is designed according to the size of the impeller to avoid interference with the impeller.

3. The thrust clearance measuring fixture for a centrifugal compressor according to claim 1, characterized in that, The size of the positioning hole (4) of the displacement sensor is designed to match the displacement sensor (5) so that the displacement sensor (5) can be accurately positioned and can be stably locked at the locking device (3) by bolts.

4. The thrust clearance measuring fixture for a centrifugal compressor according to claim 1, characterized in that, The tooling body (1) is manufactured by 3D printing.

5. The thrust clearance measuring fixture for a centrifugal compressor according to claim 1, characterized in that, The position and size of the main positioning hole (2) are designed to match the mounting holes on the centrifugal compressor housing.

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