A temperature measuring device and a temperature measuring method for a gas turbine

Abstract

The invention belongs to the technical field of temperature measurement, and discloses a temperature measurement device for a gas turbine and a measurement method thereof, comprising a colorimetric thermometer, wherein the outer side of the colorimetric thermometer is sleeved on a sleeve ring, a concave block is welded at the bottom end of the sleeve ring, a vertical plate is fixedly installed at the middle of the inner wall of the concave block, a mounting plate is welded at the bottom end of the vertical plate, an anti-interference component is fixedly installed inside the measurement port of the colorimetric thermometer, and light straightened by a collimator can form a uniform annular coverage, so that the colorimetric thermometer can ensure that the light intensity received by the colorimetric thermometer is consistent during measurement, reducing the measurement error caused by uneven light, and the uniform distribution of light helps to improve the measurement accuracy of the colorimetric thermometer, and the light adjustment can be achieved through simple mechanical movement, the operation is simple, and the user can quickly adjust the coverage and intensity of the light source according to actual needs, thereby improving the usability of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of temperature measurement, and in particular relates to a temperature measurement device for a gas turbine and a measurement method thereof. Background Art

[0002] A gas turbine is an internal combustion power machine that uses a continuously flowing gas as a working medium to drive the impeller to rotate at high speed, converting the energy of the fuel into useful work. It is a rotating impeller heat engine. A gas turbine consists of a compressor, a combustion chamber, and a gas turbine.

[0003] The initial temperature of the internal gas of the gas turbine and the compression ratio of the compressor are two main factors affecting the efficiency of the gas turbine. Improving the initial temperature of the gas can significantly improve the efficiency of the gas turbine. The combustion chamber and the turbine not only have high operating temperatures, but also bear the thermal shock caused by the drastic temperature changes when the gas turbine is started and shut down. The working conditions are harsh, so they are the key components that determine the life of the gas turbine. Therefore, it is necessary to measure the temperature inside the gas turbine.

[0004] The gas turbine temperature measurement uses a turbine blade radiation fiber optic pyrometer to measure the surface temperature of the gas turbine blade. The turbine blade radiation fiber optic pyrometer is based on the Planck blackbody radiation temperature measurement principle. It uses optical fiber to transmit the light signal emitted by the high-temperature blade to the outside of the gas turbine, thereby reducing the impact of the complex internal environment of the gas turbine on the temperature measurement accuracy. The colorimetric temperature measurement principle is mainly used to measure the surface temperature of the turbine blade;

[0005] When a colorimetric thermometer measures the temperature of an object, strong light sources or reflected light around the colorimetric thermometer may affect the accuracy of the temperature measurement, resulting in inaccurate measured data requiring re-measurement. Summary of the invention

[0006] The present invention aims to solve the problem that when a colorimetric thermometer in the prior art measures the temperature of an object, a strong light source or reflected light around the colorimetric thermometer may affect the accuracy of the temperature measurement of the colorimetric thermometer, resulting in inaccurate measured data requiring re-measurement. The present invention proposes the following technical solution:

[0007] A temperature measuring device for a gas turbine comprises: a colorimetric thermometer, wherein the outer side of the colorimetric thermometer is sleeved on a sleeve ring, a concave block is welded to the bottom end of the sleeve ring, a vertical plate is fixedly installed in the middle of the inner wall of the concave block, and a mounting plate is welded to the bottom end of the vertical plate; an anti-interference component is fixedly installed inside the measuring port of the colorimetric thermometer, the anti-interference component comprises a fixing ring installed inside the measuring port of the colorimetric thermometer through threads, an LED bulb is installed inside the fixing ring, a mirror ring is fixedly installed inside the fixing ring near one end of the LED bulb, a guide strip 1 is fixedly installed at one end of the mirror ring, and a guide ring 2 is laterally movably connected to the outer side of the guide strip 1.

[0008] As a preferred embodiment of the above technical solution, one end of the guide ring 2 is integrally formed with an external thread ring, the outer side of the external thread ring is connected to a support ring via threads, and the support ring is fixedly installed on one end face of the mirror ring.

[0009] As a preferred embodiment of the above technical solution, a plurality of cavities are opened inside the guide ring 2, a push rod is slidably connected inside the cavity, a rotating ring is fixedly installed at one end of the push rod, and a mounting ring is sleeved on the outer side of the rotating ring.

[0010] As a preferred embodiment of the above technical solution, a guide groove is provided inside the mounting ring, the rotating ring is rotatably connected to the inside of the guide groove, and one end of the mounting ring is fixedly connected to an end surface of the supporting ring.

[0011] As a preferred embodiment of the above technical solution, a rubber strip is fixedly mounted on one end of the push rod, the outer side of the rubber strip and the inner wall of the cavity fit together, and sliding grooves are equidistantly provided on the outer side of the rubber strip.

[0012] As a preferred embodiment of the above technical solution, a stabilizing component is installed inside the concave block, and the stabilizing component includes a horizontal bar with a vertical movable connection, a support column is symmetrically welded to the bottom end of the horizontal bar, a circular ring is welded to the bottom end of the support column, and a limiting roller is rotatably connected between the two circular rings.

[0013] As a preferred embodiment of the above technical solution, a rotating part is rotatably connected inside the horizontal bar, a screw rod is welded to the top of the rotating part, a threaded sleeve is threadedly connected to the outer surface of the screw rod, and the threaded sleeve is fixedly installed at the bottom end of the concave block.

[0014] As a preferred embodiment of the above technical solution, the Y-axis lines of the concave block and the horizontal bar that are perpendicular to the ground are parallel to each other, and the X-axis center lines of the concave block and the horizontal bar coincide with each other.

[0015] The present invention also provides a measurement method for a temperature measurement device applicable to a gas turbine, comprising the following steps:

[0016] Step 1: Parts assembly: Install the colorimetric thermometer and concave block;

[0017] Step 2: Position fixation: Use a stabilizing component to keep the position of the colorimetric thermometer stable after installation;

[0018] Step 3: Light blocking: Through the anti-interference component, the external light is blocked, so that the colorimetric thermometer can directly detect the outside of the object being measured;

[0019] Step 4: Temperature detection: The colorimetric thermometer detects the temperature of the outside of the object.

[0020] The beneficial effects of the present invention are:

[0021] (1) The light straightened by the collimator can form a uniform ring coverage, which can ensure that the light intensity received by the colorimetric thermometer is consistent during measurement, reducing the measurement error caused by uneven light. The uniform distribution of light helps to improve the measurement accuracy of the colorimetric thermometer. The light can be adjusted through simple mechanical movement, which is easy to operate. Users can quickly adjust the coverage and intensity of the light source according to actual needs, which improves the ease of use of the equipment.

[0022] (2) Through its unique design and operating mechanism, it can provide higher measurement accuracy, stability and operational convenience in actual use, while also enhancing safety and efficiency;

[0023] (3) It can effectively increase the contact area between the external thread ring and the support ring, thereby improving the stability of the connection, ensuring that the equipment does not move or loosen during operation, and can reduce the friction and wear between the external thread ring and the support ring, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure shows a schematic diagram of the structure of a temperature measuring device for a gas turbine in Example 1;

[0025] Figure 2 The figure shows a schematic diagram of the installation structure of the vertical plate in Example 1;

[0026] Figure 3 The figure shows a schematic diagram of the installation structure of the anti-interference component in Example 1;

[0027] Figure 4 Shown is a cross-sectional view of the anti-interference component in Example 1;

[0028] Figure 5 The example 1 is shown Figure 4 Schematic diagram of the structure of the middle A area;

[0029] Figure 6What is shown is a schematic diagram of the structure of the stabilizing component in Example 1.

[0030] In the figure: 1. mounting plate; 2. vertical plate; 3. concave block; 4. sleeve ring; 5. colorimetric thermometer; 8. anti-interference component; 81. fixing ring; 82. LED bulb; 83. collimating mirror; 84. mirror ring; 85. guide bar one; 87. guide ring two; 88. support ring; 89. external thread ring; 810. cavity; 811. push rod; 812. rotating ring; 813. mounting ring; 9. stabilizing component; 91. horizontal bar; 92. support column; 93. circular ring; 94. limiting roller; 95. rotating part; 96. screw rod; 97. threaded sleeve. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0032] Embodiment 1: The present invention provides a temperature measurement device for a gas turbine, such as Figures 1 to 6 As shown, it includes: a colorimetric thermometer 5, which is mainly composed of a probe, a Y-type coupler, a filter, a detector, an amplifying circuit, and a signal acquisition and processing device. The above structures are all prior art and will not be elaborated on here. The outer side of the colorimetric thermometer 5 is sleeved on a sleeve ring 4, and a concave block 3 is welded at the bottom end of the sleeve ring 4. A vertical plate 2 is fixedly installed in the middle of the inner wall of the concave block 3, and a mounting plate 1 is welded at the bottom end of the vertical plate 2;

[0033] An anti-interference component 8 is fixedly installed inside the measuring port of the colorimetric thermometer 5, and the anti-interference component 8 includes a fixing ring 81 installed inside the measuring port of the colorimetric thermometer 5 through a thread, an LED bulb 82 is installed inside the fixing ring 81, a mirror ring 84 is fixedly installed inside the fixing ring 81 near one end of the LED bulb 82, a guide strip 1 85 is fixedly installed at one end of the mirror ring 84, a guide ring 2 87 is laterally movably connected to the outside of the guide strip 1 85, an end face of the guide ring 2 87 near the guide strip 1 85 is triangular, and an end face of the guide strip 1 85 near the guide ring 2 87 is arc-shaped.

[0034] like Figure 3 and Figure 4 As shown, one end of the guide ring 87 is integrally formed with an external thread ring 89, and the outer side of the external thread ring 89 is connected to a support ring 88 through threads, and the support ring 88 is fixedly installed on one end surface of the mirror ring 84;

[0035] When the guide ring 2 87 rotates, it drives the external thread ring 89 to move along the outside of the support ring 88, thereby adjusting the position of the guide ring 2 87, changing the difficulty of adjusting the position of the guide ring 2 87, and then adjusting the distance between the guide ring 2 87 and the guide strip 1 85.

[0036] like Figure 3 and Figure 4 As shown, a plurality of cavities 810 are provided inside the guide ring 87, and a push rod 811 is slidably connected inside the cavity 810, and a rubber strip is fixedly installed at one end of the push rod 811, and the outer side of the rubber strip and the inner wall of the cavity 810 are in contact with each other, and sliding grooves are equidistantly provided on the outer side of the rubber strip to increase the sealing between the push rod 811 and the cavity 810 to prevent gas leakage. A rotating ring 812 is fixedly installed at one end of the push rod 811, and a mounting ring 813 is sleeved on the outer side of the rotating ring 812, and a guide groove is provided inside the mounting ring 813, and the rotating ring 812 is rotatably connected to the inside of the guide groove, and one end of the mounting ring 813 is fixedly connected to an end surface of the support ring 88, so that the rotating ring 812 can rotate inside the mounting ring 813 and the position cannot be offset;

[0037] When the guide ring 87 moves, the support ring 88 squeezes the mounting ring 813. At this time, the mounting ring 813 drives the push rod 811 to move along the cavity 810 inside the guide ring 87, increasing the squeezing force between the guide ring 87 and the support ring 88, thereby increasing the squeezing force between the external threaded ring 89 and the support ring 88, making the external threaded ring 89 and the support ring 88 more stable after adjustment.

[0038] like Figure 2 and Figure 6 As shown, a stabilizing assembly 9 is installed inside the concave block 3, and the stabilizing assembly 9 includes a horizontal bar 91 that is vertically movably connected, and a support column 92 is symmetrically welded to the bottom end of the horizontal bar 91, and a ring 93 is welded to the bottom end of the support column 92, and a limit roller 94 is rotatably connected between the two rings 93. A rotating member 95 is rotatably connected inside the horizontal bar 91, and a screw rod 96 is welded to the top of the rotating member 95. The outer surface of the screw rod 96 is connected to a threaded sleeve 97 through a thread, and the threaded sleeve 97 is fixedly installed at the bottom end of the concave block 3;

[0039] The rotating member 95 is rotated, and the screw rod 96 is driven to rotate when the rotating member 95 rotates. When the screw rod 96 rotates, it rotates and moves along the inside of the threaded sleeve 97. After the screw rod 96 moves, it drives the horizontal bar 91 to move through the rotating member 95. When the horizontal bar 91 moves, it drives the limiting roller 94 and the vertical plate 2 to fit together through the support column 92 and the ring 93, so that the limiting roller 94 supports the concave block 3.

[0040] like Figure 2 and Figure 6 As shown, the Y axis lines of the concave block 3 and the horizontal bar 91 perpendicular to the ground are parallel to each other, and the X axis center lines of the concave block 3 and the horizontal bar 91 coincide with each other;

[0041] Since the Y-axis lines of the concave block 3 and the horizontal bar 91 are parallel to each other, the rotation center points of the concave block 3 and the horizontal bar 91 are inconsistent, so that the concave block 3 and the horizontal bar 91 cannot rotate synchronously, and further the limiting roller 94 at the bottom end of the horizontal bar 91 fixes the concave block 3.

[0042] The present invention also provides a measurement method for a temperature measurement device applicable to a gas turbine, comprising the following steps:

[0043] Step 1: Parts assembly: Install the colorimetric thermometer 5 and the concave block 3;

[0044] Step 2: Position fixing: Use the stabilizing component 9 to keep the position of the installed colorimetric thermometer 5 stable;

[0045] Step 3: Light blocking: The anti-interference component 8 is used to block external light, so that the colorimetric thermometer 5 can directly detect the outside of the object being measured;

[0046] Step 4: Temperature detection: The colorimetric thermometer 5 detects the temperature of the outside of the object.

[0047] Working principle: During the actual use of the device, the personnel install the colorimetric thermometer 5 and the sleeve ring 4, then install the concave block 3 and the vertical plate 2 at the bottom of the sleeve ring 4, and then install the mounting plate 1 on the bracket. Then the personnel rotate the rotating member 95, and the rotating member 95 drives the screw rod 96 to rotate. When the screw rod 96 rotates, it rotates and moves along the inside of the threaded sleeve 97. After the screw rod 96 moves, it drives the horizontal bar 91 to move through the rotating member 95. When the horizontal bar 91 moves, it drives the limiting roller 94 through the support column 92 and the ring 93. The concave block 3 is fitted with the vertical plate 2, so that the limiting roller 94 supports the concave block 3, and because the Y axes of the concave block 3 and the horizontal bar 91 are parallel to each other, the rotation center points of the concave block 3 and the horizontal bar 91 are inconsistent, so that the concave block 3 and the horizontal bar 91 cannot rotate synchronously, and the limiting roller 94 at the bottom of the horizontal bar 91 fixes the concave block 3. Through its unique design and operation mechanism, it can provide higher measurement accuracy, stability and operation convenience in actual use, and also enhance safety and efficiency;

[0048] Then the personnel rotates the guide ring 87, and the guide ring 87 drives the external thread ring 89 to move along the outside of the support ring 88. At this time, since the support ring 88 squeezes the installation ring 813, the installation ring 813 drives the push rod 811 to move along the cavity 810 inside the guide ring 87, increasing the squeezing force between the guide ring 87 and the support ring 88, thereby making the squeezing force between the external thread ring 89 and the support ring 88 more stable after adjustment, and can effectively increase the contact area between the external thread ring 89 and the support ring 88, thereby improving the stability of the connection, ensuring that the equipment does not move or loosen during operation, and can reduce the friction and wear between the external thread ring 89 and the support ring 88, thereby extending the service life of the equipment, and in this process, after the guide ring 87 moves and adjusts the guide ring 87 The guide bar 1 85 is directed to the guide ring 2 87, so that the position between the guide bar 1 85 and the guide ring 2 87 is adjusted synchronously, thereby changing the distance between the light emitting gap between the guide bar 1 85 and the guide ring 2 87 and the light source. At this time, the light source emitted by the LED bulb 82 is straightened by the collimator 83, and the straightened light is formed into a circular ring along the smaller gap to cover the space between the detection end of the colorimetric thermometer 5 and the object. At this time, the light straightened by the collimator 83 can form a uniform annular coverage, which can ensure that the colorimetric thermometer 5 receives consistent light intensity during measurement, reducing the measurement error caused by uneven light, and the uniform distribution of light helps to improve the measurement accuracy of the colorimetric thermometer 5. At the same time, the light adjustment can be achieved through simple mechanical movement, and the operation is simple. The user can quickly adjust the coverage and intensity of the light source according to actual needs, thereby improving the usability of the equipment.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A temperature measuring device for a gas turbine, characterized in that: include: A colorimetric thermometer (5), wherein a sleeve ring (4) is sleeved on the outside of the colorimetric thermometer (5), a concave block (3) is welded to the bottom end of the sleeve ring (4), a vertical plate (2) is fixedly mounted on the middle part of the inner wall of the concave block (3), and a mounting plate (1) is welded to the bottom end of the vertical plate (2); an anti-interference component (8) is fixedly mounted inside the measuring port of the colorimetric thermometer (5), the anti-interference component (8) comprises a fixing ring (81) which is screw-mounted inside the measuring port of the colorimetric thermometer (5), an LED bulb (82) is mounted inside the fixing ring (81), a mirror ring (84) is fixedly mounted inside the fixing ring (81) at a position close to one end of the LED bulb (82), a guide strip 1 (85) is fixedly mounted on one end of the mirror ring (84), and a guide strip 2 (87) is laterally movably connected to the outside of the guide strip 1 (85); An external thread ring (89) is integrally formed at one end of the second guide ring (87); a support ring (88) is connected to the outside of the external thread ring (89) via threads; and the support ring (88) is fixedly mounted on one end surface of the mirror ring (84); A plurality of cavities (810) are provided inside the second guide ring (87), a push rod (811) is slidably connected inside the cavity (810), a rotating ring (812) is fixedly mounted on one end of the push rod (811), and a mounting ring (813) is sleeved on the outside of the rotating ring (812).

2. The temperature measuring device for a gas turbine according to claim 1, characterized in that: A guide groove is provided inside the mounting ring (813), the rotating ring (812) is rotatably connected inside the guide groove, and one end of the mounting ring (813) is fixedly connected to one end surface of the supporting ring (88).

3. The temperature measuring device for a gas turbine according to claim 2, characterized in that: A rubber strip is fixedly mounted on one end of the push rod (811), the outer side of the rubber strip and the inner wall of the cavity (810) are in contact with each other, and sliding grooves are equidistantly provided on the outer side of the rubber strip.

4. The temperature measuring device for a gas turbine according to claim 3, characterized in that: A stabilizing component (9) is installed inside the concave block (3), and the stabilizing component (9) comprises a horizontal bar (91) that is vertically movably connected, a support column (92) is symmetrically welded to the bottom end of the horizontal bar (91), a circular ring (93) is welded to the bottom end of the support column (92), and a limiting roller (94) is rotatably connected between the two circular rings (93).

5. The temperature measuring device for a gas turbine according to claim 4, characterized in that: A rotating member (95) is rotatably connected inside the horizontal bar (91), a screw rod (96) is welded to the top of the rotating member (95), a threaded sleeve (97) is threadedly connected to the outer surface of the screw rod (96), and the threaded sleeve (97) is fixedly mounted on the bottom end of the concave block (3).

6. The temperature measuring device for a gas turbine according to claim 5, characterized in that: The Y axis lines of the concave block (3) and the horizontal bar (91) that are perpendicular to the ground are parallel to each other, and the X axis center lines of the concave block (3) and the horizontal bar (91) coincide with each other.

7. A measurement method applicable to the temperature measurement device of a gas turbine according to claim 6, characterized in that: The following steps are involved: Step 1: Parts assembly: Install the colorimetric thermometer (5) and the concave block (3); Step 2: Position fixing: using a stabilizing component (9) to keep the position of the colorimetric thermometer (5) stable after installation; Step 3: Light blocking: The anti-interference component (8) is used to block external light, so that the colorimetric thermometer (5) can directly detect the outside of the object being measured; Step 4: Temperature detection: The colorimetric thermometer (5) detects the temperature of the outside of the object.

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