Testing device for speed measuring system of heavy-duty gas turbine

Abstract

The utility model provides a testing device for a speed measuring system of a heavy-duty gas turbine. The testing device comprises a supporting seat; the first speed measurement gear is rotationally arranged on the supporting seat, the first speed measurement gear is provided with a first tooth number, and at least one first rotating speed sensor of the speed measurement system is arranged on the supporting seat; the detection end of the first rotating speed sensor and gear teeth of the first speed measuring gear are oppositely arranged along the radial direction of the first speed measuring gear and are spaced by a first preset distance; the driving end of the driving mechanism is in transmission connection with the first speed measuring gear, and the driving mechanism is used for driving the first speed measuring gear to rotate at a preset rotating speed, so that an acquisition module of the speed measuring system acquires a rotating speed signal of the first rotating speed sensor. According to the testing device for the speed measurement system of the heavy-duty gas turbine, real test verification of the speed measurement system can be realized based on cooperation of the driving mechanism and the first speed measurement gear, so that the test accuracy of the speed measurement system is effectively improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of testing, in particular to a testing device for a heavy-duty gas turbine speed measurement system. BACKGROUND

[0002] The heavy-duty gas turbine is the most efficient heat-to-work conversion power generation equipment so far, and is the core equipment in the field of power generation and driving. Due to the great difficulty in design and manufacture, it reflects the industrial level of a country and is also known as the "crown jewel" of the equipment manufacturing industry.

[0003] In order to ensure the stable operation of the heavy-duty gas turbine, the speed measurement system thereof needs to be verified and tested. The conventional testing methods mainly include removing the speed sensor and connecting a signal generator to output a frequency signal, and a simpler way is to shake the ferromagnetic sheet near the sensor after the speed sensor is installed on site to test the signal loop. However, these testing methods cannot directly verify the function of the speed measurement system, the testing is one-sided, and it is difficult to ensure the reliable operation of the heavy-duty gas turbine. SUMMARY

[0004] The present disclosure aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, the purpose of the present disclosure is to provide a testing device for a heavy-duty gas turbine speed measurement system.

[0006] To achieve the above purpose, the present disclosure provides a testing device for a heavy-duty gas turbine speed measurement system, comprising: a support seat; a first speed measurement gear rotatably arranged on the support seat, and the first test gear has a first number of teeth, wherein at least one first speed sensor of the speed measurement system is arranged on the support seat, and the detection end of the first speed sensor is arranged opposite to the first speed measurement gear and the teeth of the first speed measurement gear along the radial direction of the first speed measurement gear and is spaced apart by a first preset distance; a driving mechanism, a driving end of the driving mechanism and the first speed measurement gear are drivingly connected, and the driving mechanism is used to drive the first speed measurement gear to rotate at a preset speed, so that a speed signal of the first speed sensor is collected by a collection module of the speed measurement system.

[0007] Optionally, the testing device further comprises at least one second speed measuring gear, the second speed measuring gear is rotationally arranged on the support base, and the second speed measuring gear has a second number of teeth; wherein at least one second rotation speed sensor of the speed measuring system is arranged on the support base, and a detection end of the second rotation speed sensor is oppositely arranged and spaced apart from a tooth of the second speed measuring gear by a second preset distance along a radial direction of the second speed measuring gear; a driving end of the driving mechanism is drivingly connected with the second speed measuring gear, and the driving mechanism is configured to drive the second speed measuring gear to rotate at the preset rotation speed, so that the speed signal of the second rotation speed sensor is collected by the collection module of the speed measuring system.

[0008] Optionally, the driving mechanism comprises a driving motor, the driving motor is arranged on the support base, and the first speed measuring gear is sleeved on an output shaft of the driving motor, and the driving motor is configured to drive the first speed measuring gear to rotate at the preset rotation speed.

[0009] Optionally, the driving motor is an alternating current motor, and the driving mechanism further comprises a frequency converter, an output end of the frequency converter is connected with an input end of the driving motor, and the frequency converter is configured to control the rotation speed of the driving motor according to a preset frequency.

[0010] Optionally, the driving mechanism further comprises a power line, an input end of the power line is provided with a plug, and an output end of the power line is connected with an input end of the frequency converter.

[0011] Optionally, the support base comprises a base body, a first support is arranged on the base body, and the driving mechanism is arranged on the first support; a second support is arranged on the base body, and the second support is arranged adjacent to the first support; wherein the first speed measuring gear is located on an inner side of the second support, and the first rotation speed sensor is arranged on the second support.

[0012] Optionally, the support base further comprises a plurality of first bolts, the plurality of first bolts are distributed on two sides of the first support, and the first support is arranged on the base body by the plurality of first bolts.

[0013] Optionally, the support base further comprises a plurality of second bolts, the plurality of second bolts are distributed on two sides of the second support, and the second support is arranged on the base body by the plurality of second bolts.

[0014] Optionally, the support base further comprises a plurality of third bolts, the plurality of third bolts are distributed along a circumferential direction of the first speed measuring gear, and the driving mechanism is arranged on the first support by the plurality of third bolts.

[0015] Optionally, the first rotation speed sensor penetrates the second support, and a threaded sleeve of the first rotation speed sensor is sleeved with a first nut and a second nut, and the first nut and the second nut are clamped on the second support.

[0016] The technical solutions provided by the present disclosure can include the following beneficial effects:

[0017] Since the detection end of the first rotation speed sensor is arranged opposite to the first speed measuring gear and spaced by a first preset distance, and the driving end of the driving mechanism is drivingly connected with the first speed measuring gear, the driving mechanism can drive the first speed measuring gear to rotate at a preset rotation speed, so that the first rotation speed sensor detects the rotation speed of the first speed measuring gear and sends the rotation speed signal to the acquisition module. Thus, based on the cooperation of the driving mechanism and the first speed measuring gear, the real test and verification of the speed measuring system can be realized according to the preset rotation speed and the actual rotation speed received, which changes the limitation of using virtual signals for verification in the previous debugging process, thereby effectively improving the test accuracy of the speed measuring system, and further ensuring the reliable operation of the heavy gas turbine.

[0018] Additional aspects and advantages of the present disclosure will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a circuit schematic diagram of a test device of a heavy gas turbine speed measuring system according to an embodiment of the present disclosure;

[0021] Figure 2 is a top view schematic diagram of a test device of a heavy gas turbine speed measuring system according to an embodiment of the present disclosure;

[0022] As shown in the figure: 1, support seat, 11, seat body, 12, first support, 13, second support, 14, first bolt, 15, second bolt, 16, third bolt, 17, first nut, 18, second nut;

[0023] 2, first speed measuring gear;

[0024] 3, driving mechanism, 31, driving motor, 32, frequency converter, 33, power line;

[0025] 100, first rotation speed sensor, 200, acquisition module. DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure are described below in detail with reference to examples shown in the drawings, wherein the same or similar notations are used to denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are for the purpose of explanation only, and are not to be taken as limiting of the present disclosure. On the contrary, the embodiments of the present disclosure encompass all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0027] As shown in Figure 1 and Figure 2 The present embodiment proposes a test device for a heavy gas turbine speed measurement system, comprising a support seat 1, a first speed measurement gear 2 and a driving mechanism 3, the first speed measurement gear 2 is rotationally arranged on the support seat 1, and the first speed measurement gear has a first number of teeth, wherein at least one first rotational speed sensor 100 of the speed measurement system is arranged on the support seat 1, and the detection end of the first rotational speed sensor 100 is arranged opposite the teeth of the first speed measurement gear 2 and is spaced apart by a first preset distance along the radial direction of the first speed measurement gear 2, and the driving end of the driving mechanism 3 is drivingly connected with the first speed measurement gear 2, and the driving mechanism 3 is used to drive the first speed measurement gear 2 to rotate at a preset rotational speed, so that the rotational speed signal of the first rotational speed sensor 100 is collected by the acquisition module 200 of the speed measurement system.

[0028] It can be understood that, since the detection end of the first rotational speed sensor 100 is arranged opposite the teeth of the first speed measurement gear 2 and is spaced apart by a first preset distance along the radial direction of the first speed measurement gear 2, and the driving end of the driving mechanism 3 is drivingly connected with the first speed measurement gear 2, the driving mechanism 3 can drive the first speed measurement gear 2 to rotate at a preset rotational speed, so that the first rotational speed sensor 100 detects the rotational speed of the first speed measurement gear 2 and sends the rotational speed signal to the acquisition module 200. Thus, based on the cooperation of the driving mechanism 3 and the first speed measurement gear 2, the real test verification of the speed measurement system can be realized according to the preset rotational speed and the actual rotational speed received, which changes the limitation of using virtual signal verification in the past debugging process, thereby effectively improving the test accuracy of the speed measurement system, and further ensuring the reliable operation of the heavy gas turbine.

[0029] It should be noted that the speed measurement system of the heavy gas turbine is an important part of its control system, mainly used for real-time monitoring of rotor speed to ensure safe and stable operation of the unit. Specifically, the speed measurement system of the heavy gas turbine can detect the rotational speed of the gas turbine rotor (compressor, turbine) in real time to ensure operation within the allowable range; trigger a protection action (such as cutting off the fuel) when the rotational speed exceeds the safety threshold (usually 110%-115% of the rated speed); provide a rotational speed signal for the speed regulation system to realize load regulation, synchronization and grid connection, etc.; combined with vibration sensor data, auxiliary diagnosis of rotor dynamic balance or mechanical failure.

[0030] The first rotation speed sensor 100 in the speed measurement system can be a magneto- electric rotation speed sensor, an eddy current sensor, a Hall effect sensor, etc., and is not limited in this regard.

[0031] The acquisition module 200 in the speed measurement system can be a Braun rotation speed acquisition card or an Emerson SS rotation speed acquisition card, and is not limited in this regard.

[0032] The support seat 1 is used to support the driving mechanism 3, the first speed measurement gear 2, and the first rotation speed sensor 100 of the speed measurement system. The specific type of the support seat 1 can be set according to actual needs, and is not limited in this regard.

[0033] The first speed measurement gear 2 is used to rotate at a preset rotation speed under the driving of the driving mechanism 3, so that the first rotation speed sensor 100 detects the actual rotation speed of the first speed measurement gear 2, and then the real test of the speed measurement system is performed according to the preset rotation speed and the actual rotation speed. The specific type of the first speed measurement gear 2 can be set according to actual needs, and is not limited in this regard. For example, the first speed measurement gear 2 has 48 teeth.

[0034] The driving mechanism 3 is used to drive the first speed measurement gear 2 to rotate at a preset rotation speed. The specific type of the driving mechanism 3 can be set according to actual needs, and is not limited in this regard.

[0035] During the test, different preset rotation speeds of the first speed measurement gear 2, different running times of the first speed measurement gear 2, different tooth numbers of the first speed measurement gear 2, and different first preset distances can be set, so that comprehensive test and verification of the speed measurement system can be realized.

[0036] In some embodiments, the test device further comprises at least one second speed measurement gear, which is rotatably arranged on the support seat 1 and has a second tooth number. At least one second rotation speed sensor of the speed measurement system is arranged on the support seat 1, and the detection end of the second rotation speed sensor is arranged opposite to the second speed measurement gear along the radial direction of the second speed measurement gear and the teeth of the second speed measurement gear and is spaced apart by a second preset distance. The driving end of the driving mechanism 3 is connected in transmission with the second speed measurement gear, and the driving mechanism 3 is used to drive the second speed measurement gear to rotate at a preset rotation speed, so that the acquisition module 200 of the speed measurement system acquires the rotation speed signal of the second rotation speed sensor.

[0037] It can be understood that, since the detection end of the second rotation speed sensor is arranged opposite to the wheel teeth of the second speed measuring gear and is spaced apart from the wheel teeth of the second speed measuring gear by a second preset distance, and the driving end of the driving mechanism 3 is drivingly connected to the second speed measuring gear, the driving mechanism 3 can drive the second speed measuring gear to rotate at a preset rotation speed, so that the second rotation speed sensor detects the rotation speed of the second speed measuring gear and sends the rotation speed signal to the acquisition module 200. Thus, by using the cooperation of the first speed measuring gear 2 and the second speed measuring gear, the deviation alarm protection test of the actual rotation speed in the speed measuring system can be realized, so as to ensure the reliable operation of the heavy gas turbine by using more comprehensive test functions.

[0038] It should be noted that the second speed measuring gear and the first speed measuring gear 2 have the same rotation speed and different tooth numbers, the second speed measuring gear is used to rotate at a preset rotation speed under the driving of the driving mechanism 3, so that the second rotation speed sensor detects the actual rotation speed of the second speed measuring gear, and the specific type of the second speed measuring gear can be set according to actual needs, which is not limited. For example, the second speed measuring gear can be coaxially arranged with the first speed measuring gear 2, or can be arranged on different rotating shafts and drivingly connected by using gears to realize synchronous rotation.

[0039] The rotation speed deviation can be realized by setting variable ratio parameters for a single channel or adding one or more second speed measuring gears with different tooth numbers, so as to complete the deviation alarm protection test of the speed measuring system.

[0040] As shown in Figure 1 and Figure 2 In some embodiments, the driving mechanism 3 includes a driving motor 31, the driving motor 31 is arranged on the support seat 1, and the first speed measuring gear 2 is sleeved on the output shaft of the driving motor 31, and the driving motor 31 is used to drive the first speed measuring gear 2 to rotate at a preset rotation speed.

[0041] It can be understood that, since the first speed measuring gear 2 is sleeved on the output shaft of the driving motor 31, the driving motor 31 can drive the first speed measuring gear 2 to rotate at a preset rotation speed, so that the first rotation speed sensor 100 detects the rotation speed of the first speed measuring gear 2 and sends the rotation speed signal to the acquisition module 200, thereby realizing the test verification of the speed measuring system.

[0042] It should be noted that the driving motor 31 is used to drive the first speed measuring gear 2 to rotate at a preset rotation speed, and the specific type of the driving motor 31 can be set according to actual needs, which is not limited.

[0043] As shown in Figure 1 and Figure 2As shown, in some embodiments, the drive motor 31 is an AC motor, and the drive mechanism 3 further includes a frequency converter 32, the output terminal of the frequency converter 32 is connected to the input terminal of the drive motor 31, and the frequency converter 32 is used to control the speed of the drive motor 31 according to a preset frequency.

[0044] It is understandable that since the output terminal of the frequency converter 32 is connected to the input terminal of the drive motor 31, the frequency converter 32 can control the speed of the drive motor 31 according to the preset frequency, thereby ensuring that the first speed measuring gear 2 can rotate at the preset speed, and thus realize the test and verification of the speed measuring system.

[0045] It should be noted that the frequency converter 32 is used to control the speed of the drive motor 31 according to the preset frequency. The specific type of frequency converter 32 can be set according to actual needs and there is no restriction. For example, the parameters of the frequency converter 32 are 0Hz-60Hz and 2.5kW, driving a 250W AC motor.

[0046] The preset speed range can be 0rpm-3600rpm, corresponding to a frequency range of 0kHz-172.8kHz.

[0047] like Figure 1 As shown, in some embodiments, the drive mechanism 3 further includes a power cord 33, the input end of which is provided with a plug, and the output end of the power cord 33 is connected to the input end of the frequency converter 32.

[0048] Understandably, since the input end of the power cord 33 is equipped with a plug and the output end of the power cord 33 is connected to the input end of the inverter 32, the power cord 33 can connect to an external power source through the plug and transmit the power from the external power source to the inverter 32, thereby ensuring that the inverter 32 reliably drives the drive motor 31.

[0049] It should be noted that the power cord 33 is used for the transmission of electrical energy. The specific type of the power cord 33 can be set according to actual needs, and there are no restrictions on it.

[0050] like Figure 2 As shown, in some embodiments, the support base 1 includes: a base body 11, a first bracket 12, and a second bracket 13. The first bracket 12 is disposed on the base body 11, and the drive mechanism 3 is disposed on the first bracket 12. The second bracket 13 is disposed on the base body 11, and the second bracket 13 and the first bracket 12 are arranged adjacent to each other. The first speed measuring gear 2 is located inside the second bracket 13, and the first speed sensor 100 is disposed on the second bracket 13.

[0051] It can be understood that, since the first support 12 is arranged on the seat body 11, and the driving mechanism 3 is arranged on the first support 12, the driving mechanism 3 can be stably arranged on the seat body 11 by the first support 12, and since the second support 13 is arranged on the seat body 11, and the first rotation speed sensor 100 is arranged on the second support 13, the first rotation speed sensor 100 can be stably arranged on the seat body 11 by the second support 13, and since the second support 13 and the first support 12 are arranged adjacent to each other, and the first speed measuring gear 2 is located on the inner side of the second support 13, when the first speed measuring gear 2 rotates, the first rotation speed sensor 100 can stably detect the rotation speed of the first speed measuring gear 2, thereby ensuring the reliable test of the speed measuring system.

[0052] It should be noted that the seat body 11 is used to support the first support 12 and the second support 13, and the specific type of the seat body 11 can be set according to actual needs, which is not limited, for example, the seat body 11 is a frame structure close to a rectangle, the seat body 11 is arranged horizontally, and a plurality of supporting rods can be arranged at the bottom to increase the overall height, and a handle, a walking wheel or the like can be arranged to facilitate the displacement, carrying and the like of the whole.

[0053] The first support 12 is used to arrange the driving mechanism 3, and the specific type of the first support 12 can be set according to actual needs, which is not limited, for example, the first support 12 is a frame structure close to a rectangle, and the first support 12 is arranged vertically.

[0054] The second support 13 is used to arrange the first rotation speed sensor 100, and the specific type of the second support 13 can be set according to actual needs, which is not limited, for example, the second support 13 is a frame structure close to a rectangle, and the second support 13 is arranged vertically.

[0055] As shown in Figure 2 In some embodiments, the support seat 1 further comprises a plurality of first bolts 14, which are distributed on both sides of the first support 12, and the first support 12 is arranged on the seat body 11 by the plurality of first bolts 14.

[0056] It can be understood that, since the plurality of first bolts 14 are distributed on both sides of the first support 12, and the first support 12 is arranged on the seat body 11 by the plurality of first bolts 14, the first support 12 can not only be stably arranged on the seat body 11 by the plurality of first bolts 14, but also be convenient for disassembly and assembly, and more convenient to use.

[0057] It should be noted that the first bolt 14 is used for detachable fixing of the first support 12 on the seat body 11, and the specific type of the first bolt 14 can be set according to actual needs, and no limitation is made to this, for example, the threaded rod of the first bolt 14 is sequentially penetrated through the first support 12 and the seat body 11, and then clamping and fixing are realized by using a nut. The number of the first bolt 14 can be three, four, five, etc. In the embodiment, two first bolts 14 are arranged on the two sides of the first support 12 respectively, and the four first bolts 14 realize stable arrangement of the first support 12 on the seat body 11.

[0058] As shown in Figure 2 some embodiments, the support seat 1 further comprises: a plurality of second bolts 15, the plurality of second bolts 15 are distributed on the two sides of the second support 13, and the second support 13 is arranged on the seat body 11 through the plurality of second bolts 15.

[0059] It can be understood that since the plurality of second bolts 15 are distributed on the two sides of the second support 13, and the second support 13 is arranged on the seat body 11 through the plurality of second bolts 15, the second support 13 can be not only stably arranged on the seat body 11 by using the plurality of second bolts 15, but also conveniently disassembled and assembled, and more convenient to use.

[0060] It should be noted that the second bolt 15 is used for detachable fixing of the second support 13 on the seat body 11, and the specific type of the second bolt 15 can be set according to actual needs, and no limitation is made to this, for example, the threaded rod of the second bolt 15 is sequentially penetrated through the second support 13 and the seat body 11, and then clamping and fixing are realized by using a nut. The number of the second bolt 15 can be three, four, five, etc. In the embodiment, one second bolt 15 is arranged on the two sides of the second support 13 respectively, and the two second bolts 15 realize stable arrangement of the second support 13 on the seat body 11.

[0061] As shown in Figure 2 some embodiments, the support seat 1 further comprises: a plurality of third bolts 16, the plurality of third bolts 16 are distributed along the circumference of the first speed measuring gear 2, and the driving mechanism 3 is arranged on the first support 12 through the plurality of third bolts 16.

[0062] It can be understood that since the plurality of third bolts 16 are distributed along the circumference of the first speed measuring gear 2, and the driving mechanism 3 is arranged on the first support 12 through the plurality of third bolts 16, the driving mechanism 3 can be not only stably arranged on the first support 12 by using the plurality of third bolts 16, but also conveniently disassembled and assembled, and more convenient to use.

[0063] It should be noted that the third bolt 16 is used to detachably fix the driving mechanism 3 on the first support 12, and the specific type of the third bolt 16 can be set according to actual needs, and no limitation is made thereto. For example, the threaded rod of the third bolt 16 penetrates the housing of the driving mechanism 3 and the first support 12 in sequence, and then clamping and fixing are realized by using a nut. The number of the third bolt 16 can be two, three, four, five, etc.

[0064] As shown in Figure 2 In some embodiments, the first rotation speed sensor 100 penetrates the second support 13, and the first rotation speed sensor 100 is threadedly sleeved with the first nut 17 and the second nut 18, and the first nut 17 and the second nut 18 are clamped on the second support 13.

[0065] It can be understood that, since the first rotation speed sensor 100 penetrates the second support 13, and the first rotation speed sensor 100 is threadedly sleeved with the first nut 17 and the second nut 18, and the first nut 17 and the second nut 18 are clamped on the second support 13, the first rotation speed sensor 100 can be stably arranged on the second support 13 by using the first nut 17 and the second nut 18, and is convenient to disassemble and assemble, and is more convenient to use.

[0066] The first rotation speed sensor 100 is easy to adjust the first preset distance between the first rotation speed sensor 100 and the first speed measuring gear 2 based on the threaded cooperation structure of the first rotation speed sensor 100 and the first nut 17 and the second nut 18, so that comprehensive test and verification of the speed measuring system can be conveniently realized.

[0067] It should be noted that the first nut 17 and the second nut 18 are used to cooperate with the external threads on the first rotation speed sensor 100 to realize clamping and fixing of the first rotation speed sensor 100 on the second support 13, and the specific type of the first nut 17 and the second nut 18 can be set according to actual needs, and no limitation is made thereto.

[0068] The test device of the embodiment can conveniently realize the construction of a real rotation speed signal system and the adjustment of continuous signals in a full range, and is suitable for debugging various types of rotation speed sensors and related rotation speed protection collection systems. The deviation alarm protection test of the real rotation speed can be realized by adding two to three groups of speed measuring gears (second speed measuring gears) with different numbers of teeth. A wider range of rotation speed signal simulation can be realized by changing the number of teeth of the speed measuring gear. The test device of the embodiment does not test the performance of the rotation speed sensor and the rear-end collection system, but only debugs and verifies the use function of the entire rotation speed collection system, which changes the limitation of using virtual signals for verification in the previous debugging process.

[0069] The test device of the embodiment has been applied to the test debugging work of the speed measurement system (Braun card and SS speed card) of a 300 MW F-class heavy gas turbine, and all configurations and alarm protection functions of the speed measurement system have been verified and tested, and the firmware problem of the Braun card and the low speed signal alarm error problem of the SS speed card have been found, and the reliable verification of the speed signal before the real rotation of the gas turbine is realized.

[0070] It should be noted that in the description of the present disclosure, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0071] Any process or method descriptions in flow charts or described elsewhere herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing specific logic functions or other processes. The scope of preferred embodiments of the present disclosure includes alternative implementations comprising variations on the computer process described, including where the process is performed out of order with respect to the described ordering, where individual processes are performed concurrently, where parts of individual processes are performed at different times, where certain processes are omitted, where additional processes are added, etc. All such modifications are intended to fall within the scope of the present disclosure.

[0072] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description 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.

[0073] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A test device for a heavy-duty gas turbine speed measurement system, characterized in that The test device comprises: a support base; a first speed measuring gear rotatably arranged on the support base, and the first speed measuring gear has a first number of teeth, wherein at least one first rotation speed sensor of the speed measuring system is arranged on the support base, and a detection end of the first rotation speed sensor is oppositely arranged and spaced apart from a tooth of the first speed measuring gear by a first preset distance along a radial direction of the first speed measuring gear; a driving mechanism, a driving end of the driving mechanism is drivingly connected with the first speed measuring gear, and the driving mechanism is used to drive the first speed measuring gear to rotate at a preset rotation speed, so that a collection module of the speed measuring system collects a rotation speed signal of the first rotation speed sensor.

2. The test device for a heavy-duty gas turbine speed measurement system according to claim 1, characterized in that The test device further comprises: at least one second speed measuring gear rotatably arranged on the support base, and the second speed measuring gear has a second number of teeth; wherein at least one second rotation speed sensor of the speed measuring system is arranged on the support base, and a detection end of the second rotation speed sensor is oppositely arranged and spaced apart from a tooth of the second speed measuring gear by a second preset distance along a radial direction of the second speed measuring gear; a driving end of the driving mechanism is drivingly connected with the second speed measuring gear, and the driving mechanism is used to drive the second speed measuring gear to rotate at the preset rotation speed, so that a collection module of the speed measuring system collects a rotation speed signal of the second rotation speed sensor.

3. The test device for a heavy-duty gas turbine speed measurement system according to claim 1, characterized in that, The driving mechanism comprises: a driving motor arranged on the support base, and the first speed measuring gear is sleeved on an output shaft of the driving motor, and the driving motor is used to drive the first speed measuring gear to rotate at the preset rotation speed.

4. The test device for a heavy-duty gas turbine speed measurement system according to claim 3, characterized in that The driving motor is an alternating current motor, and the driving mechanism further comprises: a frequency converter, an output end of the frequency converter is connected with an input end of the driving motor, and the frequency converter is used to control the rotation speed of the driving motor according to a preset frequency.

5. The test device for a heavy-duty gas turbine speed measurement system according to claim 4, characterized in that The driving mechanism further comprises: a power line, an input end of the power line is provided with a plug, and an output end of the power line is connected with an input end of the frequency converter.

6. The test apparatus for a heavy-duty gas turbine speed measurement system of claim 1, wherein The support base comprises: a base body; a first support arranged on the base body, and the driving mechanism is arranged on the first support; a second support arranged on the base body, and the second support is arranged adjacent to the first support; wherein the first speed measuring gear is located on an inner side of the second support, and the first rotation speed sensor is arranged on the second support.

7. The test device for a speed measurement system of a heavy-duty gas turbine according to claim 6, characterized in that The support base further comprises: a plurality of first bolts, the first support is arranged on the base body through the plurality of first bolts, and the plurality of first bolts are distributed on two sides of the first support.

8. The test device for a speed measurement system of a heavy-duty gas turbine according to claim 6, characterized in that, The support base further comprises: a plurality of second bolts, the second support is arranged on the base body through the plurality of second bolts, and the plurality of second bolts are distributed on two sides of the second support.

9. The test apparatus for a heavy-duty gas turbine speed measurement system of claim 6, wherein The support base further comprises: a plurality of third bolts, the plurality of third bolts are spaced apart and distributed along a circumferential direction of the first speed measuring gear, and the driving mechanism is arranged on the first support through the plurality of third bolts.

10. The test apparatus for a heavy-duty gas turbine speed measurement system of claim 6, wherein The first rotation speed sensor penetrates through the second support, and a first nut and a second nut are threadedly sleeved on the first rotation speed sensor, and the first nut and the second nut are clamped on the second support.

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