JP6796992B2 - Turbine measurement system and positioning system, and positioning method - Google Patents

Description

The present invention relates to a system for measuring the position of a structure such as a passenger compartment or a rotor of a turbine, a system for positioning, and a method for positioning, and particularly to a system and method suitable for a large turbine for commercial power generation.

Accurate centering of the passenger compartment and rotor in the turbine is important for improving turbine efficiency and the like. For example, a turbine for commercial power generation has a shaft length of several meters to a dozen meters, so centering is a collaborative work of a plurality of workers. The conventional centering work is performed by, for example, the following procedure.
Dial gauges (dial gauges) and hydraulic jacks are installed at various locations in the axial and circumferential directions of the turbine configuration to be centered. Workers are assigned to each dial gauge and each flood control jack. Then, each worker in charge of the dial gauge transmits the measured value to a radio such as a transceiver or a loud voice to the site supervisor. Based on the information, the site supervisor instructs each worker in charge of the hydraulic jack the amount of operation by radio or loudly. Each worker in charge of the hydraulic jack operates the hydraulic jack based on the instructions.

Japanese Unexamined Patent Publication No. 2012-149523

Due to the noise around the turbine, it may be difficult for the site supervisor to hear the worker's voice or make a mistake. The location of the dial gauge corresponding to the measured value heard may be mistaken. Alternatively, the operator in charge of the dial gauge may misread the measured value.
In view of the above circumstances, the present invention provides a turbine measurement system that allows a management worker such as a site supervisor to accurately grasp position measurement information of a turbine component such as a turbine cabin or a rotor, and further provides a turbine component. It is an object of the present invention to provide a turbine positioning system and a turbine positioning method capable of accurately positioning a turbine.

In order to solve the above problems, the turbine measurement system according to the present invention
Multiple position sensors distributed in the turbine, detecting the position of measurement points on the turbine structure and outputting the detected position information,
A sensor information processing means that transmits the detection position information of each position sensor together with the sensor identification information as transmission information.
A display processing means for receiving the transmission information and displaying a turbine image in which the position information of each measurement point is reflected in the image data of the turbine.
It is characterized by being equipped with.

According to the turbine measurement system, each position sensor detects the position of a measurement point on a turbine structure such as a turbine cabin or a rotor. Transmission information including the detection position information and sensor identification information of each position sensor is transmitted from the sensor information processing means. The sensor identification information is information that identifies the measurement point.
This transmission information is received by the communication unit of the display processing means. Preferably, the image data of the turbine is stored in the storage unit of the display processing means. The image processing unit of the display processing means reads the turbine image data and reflects the position information of each measurement point in the turbine image data based on the received transmission information.
Alternatively, the sensor information processing means may have a turbine image storage unit and an image processing unit. In the sensor information processing means, turbine image data reflecting the position information of each measurement point may be created and transmitted as transmission information. (The turbine image data in the transmission information in this case includes the detection position information and the sensor identification information of each position sensor.)
As a reflection method, for example, a measurement display area is set for each portion corresponding to a measurement point on the turbine image data, and the corresponding position information is indicated in each measurement display area.
The turbine image after the reflection process is displayed on a display unit such as a touch panel display. By checking this display screen, the management worker (site supervisor) can accurately and easily grasp the displacement and inclination of the turbine component in real time.

It is preferable that the sensor information processing means and the display processing means are wirelessly connected.
This eliminates the need to route connecting cables around the turbine.

The turbine positioning system according to the present invention includes the turbine measuring system and a plurality of position adjusting means for adjusting the position of the turbine component, and the position adjusting means are dispersedly arranged in various places of the turbine. It is a feature.
The method of the present invention is a turbine positioning method for positioning a turbine component by using the turbine positioning system, and operates each position adjusting means with reference to a turbine image displayed on the display processing means. It is a feature.
The jack operator of the position adjusting means operates the position adjusting means in response to an instruction from the management worker. As a result, positioning work such as centering of the turbine casing and the rotor can be performed accurately.

According to the turbine measurement system according to the present invention, the management worker can accurately grasp the position information of the turbine cabin and the rotor. According to the turbine positioning system and the turbine positioning method according to the present invention, it is possible to accurately perform positioning work such as centering of the vehicle interior of the turbine and the rotor.

FIG. 1 is a schematic configuration diagram of a turbine positioning system including a turbine measurement system according to a first embodiment of the present invention. FIG. 2A is a flowchart showing the operation of the position sensor and the sensor information processing means in the turbine measurement system. FIG. 2B is a flowchart showing a subroutine of the transmission information creation process by the sensor information processing means. FIG. 3 is a flowchart showing the operation of the touch panel display device (display processing means) in the turbine measurement system. FIG. 4 is a schematic configuration diagram of a part of the turbine measurement system according to the second embodiment of the present invention. FIG. 5 shows a third embodiment of the present invention, and FIG. 5A is a cross-sectional view of a part of an internal passenger compartment during disassembly or assembly. FIG. (B) is a cross-sectional view of a part of the internal passenger compartment in the assembled state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
As shown in FIG. 1, the position measurement and positioning target of the embodiment of the present invention is a turbine 9 for commercial power generation. The shaft length of the turbine 9 is, for example, several meters to a dozen meters. The turbine 9 includes a rotor 91 and a turbine casing (turbine shell) 92 as turbine components. The turbine casing 92 has, for example, a double structure consisting of an inner casing (inner turbine shell) 93 and an outer casing (outer turbine shell) 94. The internal passenger compartment 93 has a vertically divided structure of an upper half internal passenger compartment 93a and a lower half internal passenger compartment 93b. The external passenger compartment 94 has a vertically divided structure of an upper half external passenger compartment 94a and a lower half external passenger compartment 94b. In the present embodiment, the position of the internal passenger compartment 93 is measured and centering (positioning) is performed.

The turbine positioning system 1 includes a plurality of mechanical jacks 40 (position adjusting means) and a turbine measuring system 2. The mechanical jacks 40 are dispersedly arranged in the axial direction and the circumferential direction of the lower half internal casing 93b of the internal casing 93 to be centered. By advancing and retreating the rod 41 of each jack 40, the position of the jack-corresponding portion of the lower half internal passenger compartment 93b can be adjusted. Further, the plurality of jacks 40 can adjust the position and angle of the lower half internal passenger compartment 93b and thus the internal passenger compartment 93 up and down, front and back, left and right.

The turbine measurement system 2 includes a plurality of position sensors 10, a pair (s) of sensor information processing means 20, and one touch panel display device 30 (display processing means). The position sensor 10 detects the position of the measurement point p on the lower half internal vehicle interior 93b. Preferably, the position sensor 10 is composed of a contact type digital sensor. A plurality of position sensors 10 are dispersedly arranged in various places in the lower half internal vehicle interior 93b. Preferably, the plurality of position sensors 10 are dispersed and arranged in the axial direction and the circumferential direction of the turbine 9.

For example, five position sensors 10 are assigned to both sides of the lower half internal passenger compartment 93b in the axial direction (left and right in FIG. 1). Five measurement points p are set on both sides of the lower half internal vehicle interior 93b, and the probe of the position sensor 10 is in contact with each measurement point p.
The arrangement and number of the above-mentioned position sensors 10 are merely examples, and can be appropriately modified according to the size, shape, and the like of the turbine 9 or the turbine configuration to be measured (here, the internal vehicle interior 93). The position sensor 10 may be arranged so as to have a one-to-one correspondence with the jack 40.

Sensor information processing means 20 are arranged on both sides (left and right in FIG. 1) of the turbine 9 in the axial direction. Each sensor information processing means 20 includes a sensor signal input unit 23, a transmission information creation unit 21, a storage unit 22, a wireless signal conversion unit 24, and a sensor-side communication unit 25.
The position sensor 10 is connected to the corresponding port of the sensor signal input unit 23 via a cable 15. In FIG. 1, the cable 15 of the position sensor 10 on the left side of the internal vehicle interior 93 is connected to the sensor signal input unit 23 of the sensor information processing means 20 on the left side. The cable 15 of the position sensor 10 on the right side of the internal vehicle interior 93 is connected to the sensor signal input unit 23 of the sensor information processing means 20 on the right side. By doing so, it is not necessary to route the cable 15 around the turbine 9 for a long distance.

The transmission information creation unit 21 and the storage unit 22 may be composed of a microcomputer (hereinafter, appropriately referred to as “microcomputer”) or a programmable logic controller (hereinafter, appropriately referred to as “PLC”). The transmission information creation unit 21 may be composed of a microcomputer or a PLC CPU. The storage unit 22 may be composed of a microcomputer or PLC RAM and ROM. The storage unit 22 stores the correspondence table 22d, the operation program of the transmission information creation unit 21, and the like. The correspondence table 22d is data showing the correspondence between each port of the sensor signal input unit 23 and the position sensor 10. That is, the correspondence table 22d is the sensor identification information that identifies which position sensor 10 and thus the measurement point p is the input detection position information.

The radio signal conversion unit 24 converts the information from the transmission information creation unit 21 into a radio signal. Preferably, it is converted into a wireless LAN signal. The communication unit 25 wirelessly transmits the wireless signal. Preferably, the communication unit 25 has not only a wireless transmission function but also a wireless transmission / reception function. More preferably, the communication unit 25 is composed of a WiFi router.

Further, the sensor information processing means 20 includes a casing 29. The casing 29 houses the microcomputers or PLCs constituting the elements 21 to 25, the WiFi router, the power supply circuit, and the like. As a result, the sensor information processing means 20 becomes a unit.

The touch panel display device 30 is arranged at the center of the turbine 9 in the axial direction, for example. The position of the touch panel display device 30 in FIG. 1 is for convenience.
The touch panel display device 30 includes a display-side communication unit 35, an image processing unit 31, a storage unit 32, and a touch panel display 33. The display-side communication unit 35 can receive radio signals from the sensor-side communication units 25, 25 on both the left and right sides. The sensor information processing means 20 and the touch panel display device 30 are wirelessly connected. There is no need to route a wired cable between the sensor information processing means 20 and the touch panel display device 30.
Preferably, the communication unit 35 has not only a wireless reception function but also a wireless transmission / reception function. More preferably, the communication unit 35 is composed of a WiFi router. A wireless local area network (wireless LAN) is constructed by the sensor information processing means 20 and the touch panel display device 30.

The image processing unit 31 and the storage unit 32 may be composed of a microcomputer (hereinafter referred to as “microcomputer”) or a programmable logic controller (hereinafter referred to as “PLC”). The image processing unit 31 may be composed of a microcomputer or a PLC CPU. The storage unit 32 may be composed of a microcomputer or PLC RAM and ROM. The storage unit 32 stores the image data 32d of the turbine 9, the operation program of the image processing unit 31, and the like. The turbine image data 32d may be photographic data of the turbine 9, or may be schematic or detailed view data of the turbine 9.

The image 33d of the turbine 9 is displayed on the touch panel display 33 (turbine display screen). In this turbine image 33d, a measurement display area 33r corresponding to each measurement point p of the position sensor 10 is set. Further, various function buttons or icons such as a reset button 33b, a communication status display 33c, and a device confirmation button 33e are displayed on the touch panel display 33.
When the reset button 33b is touched, the reading of the position sensor 10 is set to zero. Preferably, the readings of the plurality of position sensors 10 are set to zero at once.
On the communication status display 33c, whether the wireless communication status is good or abnormal (communication cutoff) is displayed in colors or characters.
When the device confirmation button 33e is touched, the screen is switched and attribute information such as the connection configuration of the measurement system 2 and the IP addresses of the devices 10 and 20 is displayed.

In FIG. 1, for convenience of explanation, one image of the entire turbine 9 is displayed on the touch panel display 33, but the left side portion and the right side portion of the turbine 9 may be displayed separately. In FIG. 1, the image of the turbine 9 viewed from the direction orthogonal to the axial direction is shown, but the image of the turbine 9 viewed from the left side and the image viewed from the right side along the axial direction are displayed separately. You may. Further, the buttons 33b and 33c corresponding to the image on the left side and the buttons 33b and 33c corresponding to the image on the right side may be displayed separately.

Further, the touch panel display device 30 includes a casing 39. In addition to the touch panel display 33, the casing 29 houses a microcomputer or PLC that constitutes elements 21 and 22, a WiFi router that constitutes a communication unit 35, a power supply circuit, and the like. As a result, the touch panel display device 30 becomes a unit.

A method of centering (positioning) the internal vehicle interior 93 using the turbine positioning system 1 will be described with reference to the flowcharts of FIGS. 2 to 3.
A management worker a (site supervisor) is assigned to the touch panel display device 30. A jack operator b is assigned to each jack 40. There is no need to allocate personnel to the position sensor 10.

As shown in FIG. 2A, each position sensor 10 detects the position information of each measurement point p in the internal vehicle interior 93 at short time intervals (step 100).
The detection position information is input to the corresponding port of the sensor signal input unit 23 of the sensor information processing means 20 via the cable 15 (step 102).
Upon receiving this, the transmission information creation unit 21 creates transmission information (step 200). Specifically, as shown in FIG. 2B, the sensor identification information corresponding to the position sensor 10 from which the detection position information is output is read from the correspondence table 22d of the storage unit 22 (step 201). That is, it is specified which measurement point p the detection position information belongs to. Then, the transmission information creation unit 21 creates transmission information in which the sensor identification information is associated with the detection position information (step 202). Further, information for identifying the destination touch panel display device 30 is added to the transmission information (step 203). For example, the IP address of the touch panel display device 30 is added.
As shown in FIG. 2A, this transmission information is wirelessly transmitted from the communication unit 25 (step 210).

As shown in FIG. 3, the transmission information is wirelessly received by the communication unit 35 (step 301).
The image processing unit 31 reads the turbine image data 32d of the storage unit 32 and performs image processing to reflect the transmission information (step 302). That is, the position information of each measurement point p is reflected in the turbine image data 32d based on the received transmission information (detection position information and sensor identification information). Specifically, a measurement display area is set for each portion of the turbine image data 32d corresponding to the measurement point p, and the corresponding position information is fitted in each measurement display area.

The turbine image data after such image processing (reflection processing) is displayed on the touch panel display 33 (step 303).
As illustrated in FIG. 1, the corresponding position information is displayed in the measurement display area 33r in the turbine image 33d of the touch panel display 33. As the position information, the distance from the position (0.00 mm) at the time of zero setting with the reset button 33b may be displayed. Alternatively, as the position information, the regular position of the measurement point p or the distance (deviation amount) to the target position may be displayed.

By checking the turbine image 33d of the touch panel display 33, the management worker a can accurately grasp the misalignment and inclination of the internal vehicle interior 93. Moreover, the position information of a plurality of measurement points p can be grasped simultaneously and in real time.
Since it is not necessary for the operator to read out the measured values of the plurality of position sensors 10 in order, the working time can be significantly shortened. Further, an operator who reads the position sensor 10 is unnecessary, and the number of required personnel can be reduced. Human error such as misreading of the position sensor 10 by a person can be reduced, and work quality can be improved.
Then, the management worker a can accurately instruct each jack operator b of the operation amount of the jack 40. Each jack operator b operates the jack 40 in charge according to the instruction. As a result, the centering (positioning) of the internal vehicle interior 93 can be accurately performed. By using the mechanical jack 40 instead of the hydraulic jack, the position of the internal passenger compartment 93 can be easily finely adjusted.
According to the turbine positioning method of the present invention, as described above, the acquisition time of the position information of the positioning target can be significantly shortened, so that the construction period can be significantly shortened.

Next, other embodiments of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings for configurations that overlap with the above-described embodiments, and the description thereof will be omitted.
<Second Embodiment>
The measurement target is not limited to the internal passenger compartment 93, but may be the rotor 91.
The turbine positioning system 1 may be applied to centering the rotor 91. In this case, as shown in FIG. 4, the position sensors 10 are distributed and arranged around the shaft 91c of the rotor 91 to rotate the rotor 91. As a result, the measurement point p of each position sensor 10 orbits (relatively moves) on the rotor shaft 91c relatively. If the rotor 91 is accurately centered, the position information detected by the position sensor 10 is constant.

On the other hand, as shown in the virtual line of FIG. 4, if the rotor 91 is tilted, the detection position information periodically fluctuates accordingly. This detection position information is transmitted to the touch panel display device 30 via the sensor information processing means 20, and is reflected in the turbine image 33d of the touch panel display 33 (see FIG. 1).

<Third Embodiment>
The turbine measurement system 2 can also be applied to the levelness measurement of the turbine structure during the disassembly and assembly work of the turbine 9.
As shown in FIG. 5B, for example, a knock pin 95 is formed so as to protrude from the lower end surface of the upper half internal vehicle interior 93a. A pin hole 96 is formed on the upper end surface of the lower half internal passenger compartment 93b. In a state where the upper half inner passenger compartment 93a and the lower half inner passenger compartment 93b are assembled, the knock pin 95 is inserted and fitted into the pin hole 96. The clearance between the outer peripheral surface of the knock pin 95 and the inner peripheral surface of the pin hole 96 is extremely small, for example, about several tens of μm to several hundreds of μm. As a result, the misalignment between the upper half internal passenger compartment 93a and the lower half internal passenger compartment 93b can be sufficiently reduced. On the other hand, as shown in FIG. 5A, when the upper half internal casing 93a is jacked up for disassembly, if the upper half internal casing 93a is tilted even a little, the knock pin 95 is the inner circumference of the pin hole 96. It bites into the surface and friction increases.

Therefore, the position sensors 10 are distributed and arranged with respect to the upper half internal vehicle interior 93a. The detected position information of the position sensor 10 is transmitted to the touch panel display device 30 via the sensor information processing means 20 (see FIG. 1). Then, by being reflected in the turbine image 33d of the touch panel display 33, the horizontality (inclination degree) of the upper half internal vehicle interior 93a can be determined. By operating the jack based on the determination, the upper half internal passenger compartment 93a can be lifted up smoothly while being kept horizontal.
Similarly, when lowering the upper half internal cabin 93a at the time of assembly, the levelness of the upper half internal casing 93a can be confirmed by the turbine measurement system 2.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the sensor information processing means 20 may have a turbine image storage unit and an image processing unit. The sensor information processing means 20 may create turbine image data that reflects the position information of each measurement point p and transmit this as transmission information.
As a reflection method, the amount and direction of the deviation of the measurement point p from the regular position may be visualized by shifting or tilting the turbine image 33d from the regular position on the screen.
The position sensor 10 may output its own identification information together with the detection position information.
The position sensor 10 and the sensor information processing means 20 may be capable of wireless communication.
The sensor information processing means 20 and the display processing means 30 may be connected by wire.
The sensor information processing means 20 and the display processing means 30 may be integrated into one sensor information processing and display processing means.
The display unit 33 is not limited to the touch panel display, and may be a display having no touch function. The buttons 33b and 33c and the display 33e may be composed of an entity button or an entity display.
As the position adjusting means, a hydraulic jack may be used instead of the mechanical jack 40.

The present invention is applicable to, for example, the work of centering a turbine component such as a passenger compartment or a rotor of a commercial power generation turbine.

a Management worker (site supervisor)
b Jack operator p Measurement point 1 Turbine positioning system 2 Turbine measurement system 10 Position sensor 15 Cable 20 Sensor information processing means 21 Transmission information creation unit 22 Storage unit 22d Correspondence table 23 Sensor signal input unit 24 Wireless signal conversion unit 25 Sensor side Communication unit 29 Casing 30 Touch panel display device (display processing means)
31 Image processing unit 32 Storage unit 32d Image data 33 Touch panel display (turbine display screen)
33r Measurement display area 33b Reset button 33c Communication status display 33d Turbine image 33e Equipment confirmation button 35 Display side communication unit 39 Casing 40 Mechanical jack (position adjusting means)
41 Rod 9 Turbine 91 Rotor (Turbine component)
91c Rotor shaft 92 Turbine cabin (turbine component)
93 Internal passenger compartment 93a Upper half internal passenger compartment 93b Lower half internal passenger compartment 94 External passenger compartment 94a Upper half external passenger compartment 94b Lower half external passenger compartment 95 Knock pin 96 Pin hole

Claims (4)

Are distributed by a plurality respectively to one side and the other side in the axial direction of the turbine, a position sensor for outputting a detection position information by detecting the position of the measuring point on the turbine structure,
Correspondence relationship showing the correspondence relationship between a plurality of position sensors of the corresponding side part of the one side part and the other side part and a plurality of ports connected via a cable, and each port and the position sensor and the measurement point. The storage unit in which the table is stored and which measurement point the input detection position information belongs to are read from the correspondence table, and sensor identification information indicating the measurement point and transmission information including the detection position information are created. A pair of sensor information processing means including a transmission information creating unit and a sensor-side communication unit that wirelessly transmits the transmission information, and arranged on one side portion and the other side portion, respectively .
A display processing means that is wirelessly connected to each of the sensor information processing means, receives the transmission information wirelessly , and displays a turbine image that reflects the position information of each measurement point in the image data of the turbine.
A turbine measurement system characterized by being equipped with. Image processing in which the display processing means displays the detection position information in a measurement display area corresponding to each measurement point on the turbine image data based on a storage unit storing image data of the turbine and the transmission information. The turbine measuring system according to claim 1, further comprising a part. The turbine measurement system according to claim 1 or 2 .
A plurality of position adjusting means, which are dispersedly arranged in various parts of the turbine and adjust the position of the turbine structure,
A turbine positioning system characterized by being equipped with. A method of positioning a turbine component by using the turbine positioning system according to claim 3 .
A turbine positioning method characterized in that each position adjusting means is operated with reference to a turbine image displayed on the display processing means.

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