KR100899988B1 - Aiding apparatus for disassembling and assembling process of generator in repair works of propeller hydraulic turbine - Google Patents

Abstract

Disclosed is a generator disassembly and assembly process support apparatus for repairing a propeller aberration generator. The apparatus of the present invention is a portable terminal carried by each worker and a built-in electronic tag reader, a large display installed in the generator compartment, a camera for photographing the situation in the generator compartment, generator disassembly and repair for the propeller aberration generator The database storing the electronic work manual data of the assembly process and the electronic work manual of the database are sequentially displayed on the large display in the generator disassembly and assembly process mode.The disassembly and assembly work in the generator room is photographed by the camera and displayed on the large display. In response to the recognition of the electronic identification tag of the part currently being disassembled or assembled in communication with the mobile terminals, the relevant disassembly or assembly manual contents are displayed on a large display, and the measured values measured at the time of disassembly and assembly are displayed. Maintenance database with And a controller running a generator disassembly and assembly process Assistant storing built with. Therefore, when disassembling and assembling the generator, the manual contents of the corresponding parts are automatically displayed to improve workability and reduce the occurrence of errors or safety accidents.

Description

Aiding Apparatus for Disassembling and Assembling Process of Generator in Repair Works of Propeller Hydraulic Turbine}

The present invention relates to a generator disassembly and assembly process support apparatus for repairing a propeller aberration generator, and more particularly, by attaching an electronic identification tag to each part of the generator and automatically recognizing it through a terminal. The city's work manual relates to supporting devices that are automatically displayed.

In general, a propeller aberration generator is used for hydrophobic power generation, and the generator unit and the aberration unit are completely submerged in water while the propeller rotates as the water passes, and the electric power is produced by the rotation of the propeller.

In order to maintain the normal performance of the power plant and its accessories, and to prevent various accidents in advance, the aberration generators should be inspected every five or ten years to ensure safe and efficient operation. Disassembly inspection and repair of aberration generator is generally performed by disassembling generator and aberration, conducting maintenance and disassembly inspection of disassembled equipment, and assembling repaired aberration and generator.

The overhaul and repair of the aberration generator is carried out on a regular basis. If this is carried out at a different time for each device, several power failures are required, resulting in power generation loss due to a decrease in the operation rate of the plant. It is very effective and important to carry out the entire facility internally for a certain period of time. Therefore, in order to safely and efficiently finish such overhaul inspection in a shorter period, the crane and the overhead crane for disassembling the It is necessary to thoroughly inspect the same equipments and to make a careful plan and thoroughly carry out preliminary preparations so that the overhaul and maintenance process can be carried out without any problems.

In order to disassemble propeller aberration generator more easily and efficiently, preparation process to inspect, operate and separate various equipments and devices, generator disassembly process to disassemble generator and maintenance and repair, and to disassemble aberration sequentially Aberration disassembly process to repair and repair disassembled parts, aberration assembly process to assemble parts of disassembled aberration in reverse order, and generator assembly to assemble various parts of disassembled and repaired generator in order The inspection and test process of the final inspection of the process and the assembled aberration generator and testing of various tests required for operation are carried out sequentially.

However, in the related art, the repair work of the aberration generator was carried out only by the mastered function as described above. Therefore, the repair period could be estimated by disassembling and assembling without setting the order according to the repair. There was a problem of countless hours and manpower.

Therefore, the maintenance manual was written as a booklet, and the workers performed the work in the order of disassembly while examining the booklet or the blueprint in the field. Time and effort were required.

Accordingly, an object of the present invention is to disassemble the propeller aberration generator which can improve the workability by automatically disassembling and disassembling the relevant manual contents by using an electronic tag and a mobile reader to solve the problems of the prior art. And an assembly process support apparatus.

Another object of the present invention is to provide a disassembly and assembly process support apparatus for propeller aberration generator which can systematically manage parts and maintenance by automatically disassembling and assembling the generator with image data and electronic file data. .

The present invention for achieving the above object is to carry out the maintenance of the propeller aberration generator, a portable terminal for each worker carrying a built-in electronic tag reader, a large display installed in the generator room, a camera for photographing the situation in the generator room The electronic work manual of the generator disassembly and assembly process for the database and the electronic work manual of the database are sequentially displayed on the large display in the generator disassembly and assembly process mode. It displays in real time on the large display and communicates with the mobile terminals in response to the recognition of the electronic identification tag of the part currently disassembled or assembled, and displays the relevant disassembly or assembly manual contents on the large display. Disassembly and assembly video Establish a maintenance database with the electronic identification code of each part by a control unit to execute the generator disassembly and assembly process support program stored in the database.

Supporting apparatus according to an embodiment of the present invention can automatically display the relevant manual content of the corresponding parts when disassembling and assembling the generator can improve workability and reduce the occurrence of errors or safety accidents.

Hereinafter, a propeller aberration generator disassembly and assembly support apparatus according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, which are common in the art. Those skilled in the art will be able to implement the invention in various other forms without departing from the spirit of the invention.

1 is a schematic view showing the structure of a propeller aberration power plant that is overhauled and repaired according to the present invention.

1 is a schematic view showing the structure of a propeller aberration power plant that is overhauled and repaired according to the present invention.

Referring to the drawing, the tidal power station uses water in the tidal tides to store water in the tidal water, and the stored water flows into the hydraulic pipe line 14 through the intake port 12 installed in the middle of the tidal water, and discharges the introduced water. Rotate (16). The propeller 16, ie the propeller turbine, is rotated by the impact force of the water and this rotational force rotates the generator in the bulb 18 to generate electricity. The generated electrical energy is converted into high voltage through a substation installed with a transformer, etc., and then transmitted to each receiving station by a transmission line. Intake port 12 is provided with a water intake door 20 moving by a crane and a first sensor 22 for detecting the closed state of the water intake door. Water used for power generation is discharged downstream of the dam through the water discharge port (26) via the draft tube (24). The waterproof opening 26 is installed with a watertight door 28 moving by a crane, and a second sensor 30 for detecting a closed state of the waterproofing water gate is installed. In power generation, both the intake and waterproof doors are open.

Referring to the drawings, the generator chamber 32 is divided into a chamber and a chamber, and the generator 100 and the aberration 200 are horizontally installed in the bulb 18. The basement is water-tightly isolated by the generator casing 15 forming the hydraulic line. The bulb 18 is supported through the casing 15 bottom. Inside the bulb 18, the internal generator is air-cooled with cold air supplied through a cold pipe connected from the bottom of the casing 15. The crane 310 is installed in the loss ceiling of the generator room 32. An accessory chamber of the generator room 32 is provided with a transformer transformer room, a cable room, a switchgear room, a bus bar room, and the like. A large display 430 and a camera 440 are installed inside the generator room 32, and a drain pump 320 is installed below the transformer transformer chamber, and the drain pump 320 is provided with water from the drain pit 330 installed in the basement. The water is pumped to drain the water filled in the hydraulic pipe and the discharge pipe. The water level detector 340 is installed in the drain pit 330 to detect the water level.

Figure 2 shows a block diagram of the disassembly and assembly process support apparatus for the repair of the propeller aberration generator according to the present invention.

Referring to the drawings, the support apparatus 400 includes a control unit 410, a communication module 420, a large LCD display 430, a camera 440, a manager computer 450, a database 460, a switchboard 470, and maintenance. It includes a power supply 480 and the support device 400 wirelessly communicates with the portable terminal 500 carried by workers.

The controller 410 may be configured as a server system of an operation panel or a power plant control center, or may be implemented as a separate server. The communication module 420 is composed of commercially available two-way wireless communication modules such as CDMA, WiBro, and wireless LAN to communicate with the terminal 500 through a base station.

The large LCD display is a 50-inch or larger wall-mounted type that displays the work in progress as a video or graphic, or a composite image thereof, or displays camera images and work manuals taken at the work site. The camera 440 provides the controller 410 with an image taken by shooting at least one work preparation situation inside the generator room and controlled by the controller 410, such as tilt, left and right rotation, and zoom. Do. The camera 440 is preferably configured to be attached to the ceiling crane 310 to move together when the crane moves. The manager computer 450 may be connected to the control unit 410 to issue a command to the control unit 410, or the manager may monitor work progress reports or situations of workers. The manager receives the short message through the manager computer 450, composes the command in a short message, and sends the short message. The manager writes and registers the identification number of the portable terminal 500 of the workers, the worker's name, work in charge, and the like. The command is transmitted to the corresponding terminal by the registered identification number of the terminal. The database 460 includes a generator distribution and assembly process electronic manual database 462, a disassembly and assembly video database 464, and a part history management database 466 related to maintenance of a propeller aberration generator. Since the power generation operation is stopped in the maintenance work mode, the switchboard 470 switches so as to receive the use power of the system from the separate maintenance power source 480. In other words, the power supply to the generator and the aberration is cut off and only the parts necessary for the maintenance work are supplied.

The terminal 500 includes a CDMA terminal, that is, a general worker CDMA mobile phone, a dedicated CDMA terminal, a WiBro terminal, a WLAN terminal, or the like. That is, the terminal 500 leads the component related data to the electronic identification tag 610 attached to the generator component 600 through the embedded reader 510. The read data is created as a short message and wirelessly sent to the controller 410.

3 is a cross-sectional view showing the structure of a propeller aberration generator, and FIG. 4 is a partially enlarged view of a portion of the generator 100 of FIG. 3.

Referring to the drawings, the generator 100 includes the following disassembly process and the assembly process in the reverse order depending on the type of parts.

1. UPSTREAM OUTER CASING Withdrawal Process

2. Generator Outer Casing Extraction Process

3. Top Cover Drawing Process

4. SSG withdrawal process

5. Oil Head Extraction Process

6. Generator Fan Extraction Process

7. Generator Cover Extraction Process

8. Drawing process of bearing housing cover

9. Bearing Cover Extraction Process

10. Withdrawal of thrust bearing

11. Rotor-Exciter-Thrust Bearing Housing Drawing Process

Looking at the propeller generator disassembly and assembly process of the present invention in detail.

First, the manager sets the system to the generator disassembly and assembly mode of the maintenance work through the control center, and registers the mobile phone numbers of the workers, the worker's name, the responsible task, and the like through the manager computer 450.

Subsequently, when the work order command is issued, the generator disassembly manual data is displayed on the display 430. Workers first remove the fixing nut of the loose flange 104 of the casing 102 and the bolts and nuts of the casing 102 according to the operation manual displayed on the screen, and then withdraw it using the overhead crane 310. At this time, the loose flange 104 of the casing 102 is loosely released in order to allow the withdrawal. If there is no existing electronic identification tag on each separated part, new electronic identification tag is attached and the operator leads the electronic identification tag attached to the part with his terminal and displays each part code displayed on the screen together with the read information. Create and send a report short message. The controller 410 registers the electronic identification code included in the short message by matching the corresponding part code. Thereafter, in response to the electronic identification code, related data is stored as data of the corresponding component.

Since the casing 106 is fixed at the bottom, the upper bolt is separated and separated using the crane 310, and then the staging and the bolt are separated to draw out the generator outer case 108. Inside the casing, foreign matters generated during the operation of a water generator are attached to the casing and slippery, which may cause a safety accident. Therefore, after cleaning and drying the casing, the next work should be performed. The controller 410 displays the safety accident prevention measures on the screen of the display 430 to notify the workers of safety.

When the case withdrawal operation is finished, the control unit 410 displays a disassembly manual for withdrawing the top cover 110 of the bulb 18, which is the next disassembly process, on the display 430.

Open top cover manhole 111 to open the vane open hydraulic pipe of the central case 114, runner vane closed hydraulic pipe, oil drain pipe of the upper case 112, oil of the lower case 116, located inside the bulb 180 The drain pipe, the restoring wire, and the like are disassembled and drawn out, which is a preparation operation for smoothly pulling out the top cover 110.

The manhole cover is temporarily assembled to withdraw the top cover 110 after completion of the internal work. After the preparation work is completed, two upstream hooks hang on a 1-ton chain block and four downstream hooks hang on a wire rope to lift the top cover 110. Then remove the top cover fixing bolt. After the bolt is removed, the overhead crane 310 is also lifted together while lifting the 1-ton chain block suspended on the upstream side.

This is a work to be carried out because the lower side of the top cover 110 should be drawn out at an inclination of 45 °, the signal operator and the crane operator should work on the post-consultation work in advance to work according to the promised signal. In addition, since there are important components inside the top cover, the controller 410 displays a screen on the display to be careful not to damage the components.

The SSG (speed signal generator) 118 removes the fixing bolt and then draws it out using the crane 310. At this time, it is necessary to separate the wiring and tape end of the cable, and to make fine adjustment by using a 1-ton chain block at the bottom of the hook when working with a crane, and break the insulation plate between the SSG9118) and the oil head 112. Pay attention to

The oil head 112 case, the center case 114) and the lower case 116 are disassembled and taken out in order, and the details thereof are as follows. After removing the step shaft 120 fixing bolt inside the upper case 112, the step shaft 120 is taken out. The nut 122, the stopper 124, the bearing 126, and the bearing case 128 are taken out in order.

At this time, the bearing case 128 is taken out after removing the pin connected to the return arm 130 before the bearing case 128 is taken out. After removing the internal components of the lower case 116, the lower case 116 fixing bolt is removed, and then the lower case 116 is drawn out using the crane 310. Next, the center case 114 removes the fixing bolt and then withdraws it using the crane 310.

When the central case 114 is removed, the mechanical seal 132 is visible. At this time, after checking the loose state of the mechanical seal 132, if there is no abnormality, the fixing bolt is removed and drawn out. At this time, since the mechanical seal 132 of the lower case 116 is made of a carbon component and is weak in impact, care must be taken not to apply an impact during disassembly.

When working with the crane 310 during the oil head extraction process work, it is possible to work while finely adjusting by using a 1 ton chain block on the bottom of the hook.

After disconnecting the power cable of the generator fan 134, the fan fixing bolt is removed to draw out the generator fan 134. At this time, number and tape the power cable.

Since there is a fixing bolt inside the generator cover 136, care must be taken when the cover 1360 is pulled out because the space is narrow. First, the fan cover 138 is disassembled and pulled out, and the generator cover 136 is drawn out only at the top. The bolt is fixed to the cover 138 and the wire rope is pulled out to the crane 310. At this time, the generator cover 136 is in close contact for a long time, so that the generator is extended and stretched at the moment of contact surface separation. Attention is drawn to the safety of the cover 136. As the generator cover 136 is pulled out, all internal components of the generator side are exposed.

Before the bearing housing cover 140 is drawn out, the clearance of the upstream and downstream oil deflector 142 is measured, and the measured value is transmitted by the operator to the control unit 410 in a short message and recorded in the database 466.

Next, after removing the fixing bolt of the bearing housing cover 140, the crane 310 to take out the cover 140. The play of the journal bearing 144 is measured before the bearing cover is extracted, and the measurement is transmitted to the control unit 410 by a short message and recorded in the database 466. The fixing bolt of the bearing cover 146 is removed to take out the cover 146. At this time, the contact surface of the journal bearing 144 and the thrust bearing 148 is weak to the shock, so pay attention and be sure to pull out using a 1 ton chain block on the hook hook crane (310).

After measuring the play before withdrawing the thrust bearing 148, the damage is confirmed and then the thrust bearing reassembly is performed.

The rotor 152, exciter 158, and thrust bearing housing 148 are pulled out integrally with the generator shaft 160. Therefore, since the generator shaft is coupled to the aberration rotation shaft, the work is performed after the shaft coupling is separated by the work associated with the aberration disassembly and repair step. This section describes the extraction of rotor-exciter-trust bearing housings.

Before performing the above operation, the clearance between the stator 150 and the rotor 152 is measured, and the air deflector 154 is disassembled and taken out. Mount the device with the crane hook, install the chain block in two places, and install one wire rope in the device in the standby state. The chainblock installation point connects with the device in two places, the thrust bearing housing and the coupling 156.

At this time, the packing of a thickness of 1mm is inserted between the rotor 152 and the stator 150 by using the seat packing to prevent damage to the rotor. The thrust bearing housing 148 and the coupling 156 are connected to a device using a chain block for horizontal adjustment, and the whole is lifted when the device is lifted using the crane 310.

At this time, since the air gap of the generator 100 is 5mm, lift it up with caution, and then move the rotor 152, exciter 158, and thrust bearing housing 148 little by little in the transverse direction, and are connected to the coupling 156. When the chain block rope touches the generator body, the crane 310 is lowered and lowered, and then the rope of the coupling 156 is separated.

By performing the operation as described above, the rotor 152 is exposed to about 1/3 of the stator 150, so that the rotor 152, exciter 158, and the thrust bearing housing 148 integrally trust the device. Hook the wire rope to the two places of the housing 148 and the rotor 152 to lift the crane 310, and then move in a transverse direction to take out. When the end portion of the coupling 156 comes out of the stator 150, it is transferred to the assembly chamber and placed.

By doing this, the disassembly process of the generator is completed. In the present invention, when the electronic identification tag attached to each component is read, the contents of the electronic manual of the parts corresponding to the large screen are automatically displayed. Can predict the next work order and improve working efficiency. In addition, safety precautions are displayed on the screen at each step, so you can work safely with care.

The components and auxiliary equipment of the generator disassembled by the generator disassembly process are performed by performing the disassembly device inspection process, and then performing the generator assembly process.

The controller 410 sets the operation mode to the assembly process mode. The initial screen of the assembly process is displayed on the screen, and then the assembly process manual is automatically displayed on the screen in response to the lead of the electronic identification tag.

In the assembly process, since all parts of the electronic identification tag are attached to all parts in the disassembly process, when the electronic identification tag is read through the terminal 500 and the contents are sent to the controller as a short message, the screen contents are automatically converted and displayed. .

The components and auxiliary equipment of the generator disassembled by the generator disassembly process are performed by performing the disassembly device inspection process, and then performing the generator assembly process.

The controller 410 sets the operation mode to the assembly process mode. The initial screen of the assembly process is displayed on the screen, and then the assembly process manual is automatically displayed on the screen in response to the lead of the electronic identification tag.

In the assembly process, since all parts of the electronic identification tag are attached to all parts in the disassembly process, when the electronic identification tag is read through the terminal 500 and the contents are sent to the controller as a short message, the screen contents are automatically converted and displayed. .

Generator assembly step 200-5 proceeds in the following order.

1. Assembly process of rotor, exciter and thrust bearing housing

2. Disassembly and assembly process of thrust bearing

3. Generator cover assembly process,

4. Oil head lower case assembly process

5. Oil head central case assembly process

6. Oil head upper case assembly process

7. SSG assembly process

8. Generator fan assembly process

9. Top cover assembly process

10. Top cover manhole closure

11. Assembling the generator outer casing

12. Assembly upstream outer casing

All consumable replacement and cleaning conditions must be clean before assembly.

The rotor 152, the exciter 158, and the thrust bearing housing 148 are temporarily assembled in the assembly chamber with the thrust bearing housing 148, the exciter 158, and then the device is mounted on a crane hook to install the chain block. Install two places and one wire rope to the device.

Wire rope and chain block installation points connect the device to the thrust bearing housing 148 and the rotor 152. At this time, the entirety of the seat packing is wrapped to prevent rotor damage, and the wire rope is connected to the device using the wire. The thrust bearing housing 148 is connected to the device using a chain block for horizontal adjustment and lifted by a crane.

When moving from the assembly room to the assembly place, the crane 310 operates by minimizing shaking due to immature operation. First, the generator shaft 160 having the rotor 152, the exciter 158, and the thrust bearing housing 148 integrated is moved as deep as possible so that the rotor 152 can insert about 3/2 of the stator 150. After descending carefully settle. Then, after unwinding the wire rope hooked to the rotor 152, the wire rope and chain block is connected to the device on the coupling 156 side, lifted up by the crane 310, and then moved laterally to the correct position. Let's do it.

After assembling as described above, the thrust bearing housing 148 and the exciter 158 are fastened with fixing bolts. The oil supply pipe for operating the runner blade is inserted into the generator side shaft 160.

The parts to be complemented during the assembly of the generator side and the aberration side should be run in parallel with the runner shaft assembly process, the shaft coupling assembly process, and the guide bearing assembly process.

The runner shaft assembly process moves using the crane 310 so as not to be loosened by using a wire and a cloth rope to the runner shaft and the blade 202 in the assembly chamber.

In the shaft coupling assembly process, after assembling the oil supply pipe, the coupling bolt is fastened until it can be tightened. At this time, because the guide bearing is not installed yet, the runner shaft may sag. Install two jack bolts in the 45 direction.

The guide bearing assembly process removes two jack bolts, inserting two pieces of guide bearings 45 from the downstream side, and assembling them. At this time, pay attention to cleanliness when assembling the guide bearing 45, and assemble after applying sufficient lubricant. After assembling the guide bearing 45, the coupling bolt is not fastened during the shaft coupling assembly process performed in the previous step, and the tightening operation is performed while rotating the shaft 160 uniformly. After coupling bolts, measure guide bearing play (reference value 0.33 ~ 0.62mm).

When the guide bearing assembly process is completed as described above, the generator assembly process and the aberration assembly process are performed simultaneously to smoothly and shorten the air.

Disassembling the thrust bearing during the generator assembly process In the assembly process, the thrust bearing 148 is first disassembled. The purpose of disassembling is to disassemble the thrust bearing 148, which has been temporarily assembled for the rotor installation, for disassembly for perfect assembly, and then to reassemble. Before assembly, check that the bearing metal's white metal surface is at least 50% worn. If it is still worn, replace it with a new one.

When assembling the thrust bearing 148, foreign matters should not be mixed and assembled after applying sufficient lubricant. After completing the assembly as described above, measure the thrust bearing play (reference value 0.33 ~ 0.62mm), generator air gap measurement (reference value: design value ㅁ 0.5mm), exciter play measurement (reference value: design value ㅁ 0.3mm), oil deflector play (Reference value 0.35 ~ 0.45mm), Journal bearing clearance measurement (Reference value 0.33 ~ 0.62mm), Insulation resistance measurement between thrust bearing base and bearing housing (reference value above 100㏁), shaft level measurement (within 1 / 100mm) . Each measurement is sent by the operator to the control unit 410 in a short message and recorded in real time in the database 466.

The generator cover assembly process is a place where the generator 100 is locked in the water and requires perfect watertight, so it is necessary to be careful when installing the O-ring, and in particular, there is no bending of the joint. After the generator cover 136 is installed, the fan cover 138 is installed after tightening evenly with the fixing bolt. When installing the fan cover 138, attention is required for safety accidents due to the narrow internal working space.

In the oil head lower case assembly process, the lower case 116 is fastened by adjusting the gap with the shaft 160 as a fixed body to maintain a constant clearance. This requires attention because the shaft 160 may cause damage to the device if the shaft 160 is in contact with the carbon during rotation. When assembly of the lower case 116 is completed, the carbon and the mechanical seal 132 attached to the case 116 are given a preload (3.5 to 4 mm) and then assembled using a set screw.

In the process of assembling the oil head center case 114, two bushings are installed inside the center case 114, so when the amount of wear is excessive, it may cause loss of oil for operating the runner blades. do. Also assemble while checking the centering state with the oil supply pipe.

The assembly process of the oil head upper case 112 is performed after assembling while checking the centering state with the rotating shaft as described above, and then the bearing case 128, the bearing 126, the stopper 124, the nut 122, and the step shaft 120. Assembling sequentially, and finally fixed to the set screw after installing the pins for connecting to the bearing case 128 and the return arm 130.

SSG assembly process by manually rotating before assembly to check the output state of the speed sensor and the clearance (reference value 1 ㅁ 0.1mm), and is assembled by installing an insulating plate between the oil head upper case 112.

Generator fan 134 assembly process is connected to the fan motor power after fixing the fan 134 to the generator cover 136. After connection, check whether the rotation direction of the fan is correct by using manual operation and report the result to the controller 410 as a short message.

The assembly process of the top cover 110 is to pull out the top cover 110, the two hooks on the upstream side hang the 1 ton chain block, and the two downstream hooks hang on the wire rope to the crane 310. After moving up to the assembly position, lift the two 1-ton chain blocks on the upstream side at the same time and wrap the oil head case 112 with the crane 310 and the two chain blocks as if the lower side was lifted about 45 °. Slowly descends.

Care should be taken to avoid damaging the internal components of the top cover 110, and care must be taken to completely block water ingress of the top cover 110 connection. After fastening the fixing bolt of the top cover 110, the runner vane opening pipe, the rubber vane closing pipe, the oil drain pipe, the restoring wire, etc. are assembled in the top cover 110, and the manual operation and oil head pipeline are made using the governor hydraulic pressure. Check the leakage state of the connection portion, the operating state of the return arm (130).

When the operation is completed, the top cover manhole 111 is closed.

The generator outer casing assembly process (244) first manufactures and installs the seat packing of the casing (6) connection, and the casing (6) is deformed in a state where the casing (6) has been separated for a long time, so that the bolt hole when assembling the casing (6) This does not fit exactly. Therefore, make several taper pins to fit the bolt holes and tighten the bolts after forced drilling. When tightening bolts, tighten diagonally to ensure even tightening.

The upstream outer casing assembly process is divided into a casing 102 and a casing 106. First, the casing 106 is assembled in the same manner as the generator outer casing assembly process in the previous step, and the assembly of the casing 104 is performed by the casing 106. Assemble the fixing nut to the connection part of) and tighten the stay nut and the casing bolt and the nut of the loose flange 104 in a uniform tightening in a diagonal direction to carefully block the inflow of water to the connection part. To complete.

According to the present invention, when the operator leads the electronic identification tag of the part to his terminal in the field and transmits it to the control unit in a short message, the corresponding manual screen is displayed, so that the user can work while watching the complicated disassembly and assembly process on the screen. As even an inexperienced worker can easily work, the work efficiency is improved and the measured values are automatically built into the database, and all the work is recorded as a video so that the work progress can be reviewed after the work. It can be used as. In addition, the parts history of all parts is built into the database, so it is possible to manage parts replacement time at a glance.

Although described with reference to the embodiments above, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims below. You will understand.

1 is a schematic view showing the structure of a propeller aberration power plant that is overhauled and repaired according to the present invention.

Figure 2 shows a block diagram of a generator disassembly and assembly process support apparatus for repair of the propeller aberration generator according to the present invention.

3 is a cross-sectional view showing the structure of a propeller aberration generator.

4 is a partially enlarged view of the generator portion of FIG. 3.

Claims (1)

An electronic identification tag attached to propeller aberration generator components; A portable terminal for carrying by each worker and having an electronic tag reader for reading the electronic tag, and transmitting the information and the measurement data of the read electronic tag in a short message; A communication module for communicating with the portable terminal; Large display installed in the generator room; A camera for photographing the situation in the generator room; An administrator computer for registering the identification number of the portable terminal; A database in which electronic work manual data of a generator disassembly and assembly process for repairing the propeller aberration generator is stored, and measured value character data is stored in correspondence with an electronic identification code corresponding to each component of the propeller aberration generator; And The short message is communicated with the mobile terminal registered through the manager computer through the communication module, and in the aberration generator disassembly and assembly process mode, the electronic operation manual of the database is sequentially displayed on the large display and disassembled in the generator chamber. And photographing the assembly operation status on the large display in real time on the large display, and communicating with the mobile terminal in a short message manner in response to the recognition of the electronic identification tag of the part currently being disassembled or assembled. The aberration generator disassembly and assembly process support program is displayed on the large display, and the measured value measured during disassembly and assembly and the disassembly and assembly video together with the electronic identification code of the corresponding parts are built as a maintenance work database and stored in the database. Generator disassembly and assembly process of the supporting device propeller aberration generator comprising the controller performed.

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