Gas turbine damper gap measuring device and measuring method

Abstract

The invention aims to provide a gas turbine damper gap measuring device and measuring method, and belongs to the field of measurement. The bottom of the connecting disc is fixed on the chassis, a front support with a damper is fixed with the connecting disc, the chassis is provided with a waist-hole-shaped part, the waist-hole-shaped part is provided with the support, the lever and the support are provided with pin holes, and the lever and the support are connected by installing a middle pin in the pin holes of the lever and the support. An end pin and a hydraulic jack are installed below the two ends of the lever respectively, the end pin is located above a bearing of the front support, a number sensor is installed on the chassis, the hydraulic jack is located above the number sensor, the feeler gauge comprises a handle and a plug strip, the plug strip is fixed to the handle, the handle is fixed to the connecting disc, and the plug strip measures the gap of the damper. Compared with a general feeler gauge, the plug strip is narrower and longer, and can be used for measuring a narrow space.

Description

Technical Field

[0001] The invention relates to a measuring device and a measuring method, in particular to a measuring device and a measuring method for a gas turbine damper. Background Art

[0002] Dampers can reduce the vibration of gas turbines during operation. Gas turbines will generate vibrations during operation due to high-speed rotating parts (such as rotors, etc.) and instability during the combustion process. Dampers can suppress these vibrations by absorbing or dissipating vibration energy, avoiding damage to equipment caused by excessive vibration, such as vibration cracks on blades due to long-term severe vibration.

[0003] At the same time, the damper helps maintain the stability of the gas turbine, making the gas turbine run more smoothly and ensuring that each component can work in a stable state, thereby ensuring the efficiency and reliability of the gas turbine and reducing the probability of failure. Summary of the invention

[0004] The object of the present invention is to provide a gas turbine damper clearance measuring device and a measuring method which can measure a narrow space.

[0005] The object of the present invention is achieved in that:

[0006] The present invention provides a gas turbine damper clearance measuring device, which is characterized in that it includes a chassis, a connecting plate, a support, a lever, and a feeler gauge, wherein the bottom of the connecting plate is fixed on the chassis, the front support with the damper is fixed to the connecting plate, a waist hole-shaped part is provided on the chassis, the support is installed on the waist hole-shaped part, pin holes are provided on the lever and the support, the lever and the support are connected by installing middle pins in the pin holes of the lever and the support, end pins and a hydraulic jack are respectively installed below the two ends of the lever, the end pins are located above the bearing of the front support, a quantity sensor is installed on the chassis, the hydraulic jack is located above the quantity sensor, the feeler gauge includes a handle and a feeler strip, the feeler strip is fixed on the handle, the handle is fixed to the connecting plate, and the feeler strip measures the damper clearance.

[0007] The gas turbine damper clearance measuring device of the present invention may further include:

[0008] 1. The front support should be installed directly above the connection plate in the installation direction.

[0009] 2. The support can be adjusted in the waist hole part.

[0010] 3. The distance between the hydraulic jack and the middle pin is equal to the distance between the end pin and the middle pin.

[0011] 4. The plug strip can be replaced according to the size of the space.

[0012] The present invention provides a method for measuring the clearance of a gas turbine damper, which is characterized by comprising the following steps:

[0013] (1) Install the connecting plate on the chassis and secure it with bolts;

[0014] (2) Install the front support of the lifting belt damper and fasten it to the connecting plate with bolts. The front support should be installed directly above the connecting plate in the installation direction;

[0015] (3) Install the support on the chassis. The chassis is provided with waist-shaped holes for adjusting the support installation position. At this time, the bolts are tightened by hand and do not need to be fixed;

[0016] (4) Install the middle pin at the head of the lever through a threaded connection;

[0017] (5) Install the lever through the middle pin at the supporting fork;

[0018] (6) Adjust the installation position of the support on the base through the waist-shaped hole on the chassis so that the end pin is aligned with the midpoint directly below the bearing, and then tighten the connecting bolts of the support to fix it on the chassis;

[0019] (7) Install a hydraulic jack at the tail of the lever and a digital sensor on the chassis. The hydraulic jack is located above the digital sensor. The digital sensor is placed at a position equal to the distance between the end pin and the center point of the lever.

[0020] (8) Apply pressure to the hydraulic jack. At this time, apply the same force directly below the bearing through the end pin on the lever. Stop applying pressure when the digital sensor displays a value within the range of 3000±50N.

[0021] (9) Install the feeler gauge on the connecting plate and use the feeler gauge to measure the damper clearance.

[0022] The advantage of the present invention is that the feeler gauge of the present invention is narrower and longer than a general feeler gauge, and can be used to measure a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2a This is a cross-sectional view of the connection plate. Figure 2b It is a schematic diagram of the connection plate structure;

[0025] Figure 3a This is a cross-sectional view of the chassis. Figure 3b It is a schematic diagram of the chassis structure;

[0026] Figure 4a Support section view, Figure 4b To support the top view;

[0027] Figure 5a Lever cross-section view, Figure 5b It is a schematic diagram of the lever structure;

[0028] Figure 6a It is the schematic diagram of the middle pin structure. Figure 6b It is the top view of the middle pin;

[0029] Figure 7 is a schematic diagram of the end pin structure;

[0030] Figure 8 It is a schematic diagram of the feeler gauge structure;

[0031] Fig. 9 This is the installation location diagram of the digital display sensor. DETAILED DESCRIPTION

[0032] The present invention is described in more detail below with reference to the accompanying drawings:

[0033] Combination Figure 1-9 The gas turbine damper gap measuring device of the present invention comprises a chassis 1, a connecting plate 2, a support 3, a lever 4, a middle pin 5, a hydraulic jack 6, a number sensor 7, an end pin 8, a feeler gauge 9, etc. The connecting plate 2 is fixed to the chassis 1 with bolts, and the front support with the damper is fastened to the connecting plate 2 with bolts, and the front support is installed directly above the connecting plate 2 in the installation direction. The support 3 is installed on the chassis 1, the pin 8 is installed on the support 3, and then the lever 4 is connected through the pin 5, the installation position of the support 3 is adjusted, the pin 8 is aligned with the midpoint of the bearing, the connecting bolts of the support 3 are tightened, the hydraulic jack 6 is installed at the tail of the lever 4, and the digital display sensor 7 is installed on the chassis 1, and the special feeler gauge 9 is used to measure the damper gap T. The feeler strip of the special feeler gauge 9 is specially made, and can measure a small space.

[0034] The gas turbine damper clearance measurement method of the present invention comprises the following steps:

[0035] 1) Install the connecting plate 2 on the chassis 1 and fix it with bolts.

[0036] 2) The front support of the lifting belt damper is fastened to the connecting plate 2 with bolts. At this time, attention should be paid to the angular installation direction of the front support, and the front support should be installed directly above the connecting plate 2 in the installation direction.

[0037] 3) Install the support 3 on the chassis 1. The chassis 1 has waist-shaped holes to facilitate the adjustment of the installation position of the support 3. At this time, the bolts can be tightened by hand without fixing.

[0038] 4) Install the pin 8 on the lever 4 by threaded connection.

[0039] 5) Install lever 4 at the fork of support 3, align the pin hole, and then install the penetration pin 8 for connection.

[0040] 6) Adjust the installation position of support 3 on base 1 through the waist-shaped hole on chassis 1, align pin 8 with the midpoint directly below the bearing, and then tighten the connecting bolts of support 3.

[0041] 7) Combination Fig. 9 , install a hydraulic jack 6 at the tail of the lever 4, install a digital sensor 7 on the chassis 1, and the placement position of the digital sensor 7 should be equal to the distance between the pin 8 and the center point of the lever 4, that is, A:B=1:1.

[0042] 8) Apply pressure to the hydraulic jack 6. At this time, the same force is applied to the lower part of the bearing through the pin 8 on the lever 4. Stop applying pressure when the value displayed by the digital sensor 7 is within the range of 3000±50N.

[0043] 9) Use the special feeler gauge 9 to measure the damper clearance T. The feeler strip of the special feeler gauge 9 is specially made. The difference from the general feeler gauge is that the feeler strips of different specifications are fixed to the handle by screws, and the threaded part of the screw is coated with sealant to prevent it from falling off. The feeler strip is narrower and longer than the general feeler gauge, so it can measure small spaces.

Claims

1. A gas turbine damper clearance measuring device, characterized in that: It includes a chassis, a connecting plate, a support, a lever, and a feeler gauge. The bottom of the connecting plate is fixed on the chassis, the front support with a damper is fixed to the connecting plate, a waist hole-shaped part is provided on the chassis, and the support is installed on the waist hole-shaped part. Pin holes are provided on the lever and the support, and the two are connected by installing middle pins in the pin holes of the lever and the support. End pins and hydraulic jacks are respectively installed below both ends of the lever, and the end pins are located above the bearing of the front support. A quantity sensor is installed on the chassis, and the hydraulic jack is located above the quantity sensor. The feeler gauge includes a handle and a feeler strip. The feeler strip is fixed on the handle, and the handle is fixed to the connecting plate. The feeler strip measures the damper gap.

2. A gas turbine damper clearance measuring device according to claim 1, characterized in that: The front support is installed directly above the connection plate in the installation direction.

3. The gas turbine damper clearance measuring device according to claim 1, characterized in that: The support can be adjusted in position in the waist hole-shaped part.

4. The gas turbine damper clearance measuring device according to claim 1, characterized in that: The distance between the hydraulic jack and the center pin is equal to the distance between the end pins and the center pin.

5. The gas turbine damper clearance measuring device according to claim 1, characterized in that: The plug strip can be replaced according to the size of the space.

6. A gas turbine damper clearance measurement method, characterized in that: The following steps are included (1) Install the connecting plate on the chassis and secure it with bolts; (2) Install the front support of the lifting belt damper and fasten it to the connecting plate with bolts. The front support should be installed directly above the connecting plate in the installation direction; (3) Install the support on the chassis. The chassis is provided with waist-shaped holes for adjusting the support installation position. At this time, the bolts are tightened by hand and do not need to be fixed; (4) Install the middle pin at the head of the lever through a threaded connection; (5) Install the lever through the middle pin at the supporting fork; (6) Adjust the installation position of the support on the base through the waist-shaped hole on the chassis so that the end pin is aligned with the midpoint directly below the bearing, and then tighten the connecting bolts of the support to fix it on the chassis; (7) Install a hydraulic jack at the tail of the lever and a digital sensor on the chassis. The hydraulic jack is located above the digital sensor. The digital sensor is placed at a position equal to the distance between the end pin and the center point of the lever. (8) Apply pressure to the hydraulic jack. At this time, apply the same force directly below the bearing through the end pin on the lever. Stop applying pressure when the digital sensor displays a value within the range of 3000±50N. (9) Install the feeler gauge on the connecting plate and use the feeler gauge to measure the damper clearance.

Images