JP2016079908A - Blade body washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blade body washing device capable of efficiently washing and removing extraneous matter from a blade body of a rotary machine.SOLUTION: A blade body washing device 60 according to the present invention includes: attachment parts 62 attached to blade bodies of a first blade group, among the first blade group and a second blade group which comprise a plurality of blade bodies arranged radially around a shaft as a center and relatively rotate to each other; and a washing unit 61 integrally provided with the respective attachment parts 62 and comprising a tank for storing a washing fluid, a pump for pressure-feeding the washing fluid of the tank, and nozzles 63 for jetting out the washing fluid pressure-fed by the pump toward the blade bodies of the second blade group.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a blade body cleaning device for a multistage axial flow rotary machine.

  A rotary machine such as a multi-stage axial flow blower is formed and rotated on a casing forming an annular flow path, a rotating shaft rotating inside the casing, a moving blade fixed to the rotating shaft and rotating together with the rotating shaft, and an inner surface of the casing. And stationary vanes arranged alternately with the moving blades in the axial direction. A rotary machine such as a multi-stage axial flow blower forms an annular flow path inside a casing, and pumps air flowing into the annular flow path by a moving blade. A rotary machine such as a multi-stage axial flow blower may be provided in an environment in which dust (floating powder) circulates, for example, as a blast furnace application.

  When a rotary machine such as a multistage axial blower is used for a long time in such an environment, dust adheres to and accumulates on the blade surface of a blade body (a moving blade and a stationary blade). When such dust accumulates, the cross-sectional shape of the wing body changes from when a new one is introduced. In particular, when the cross-sectional shape of the front edge portion and the rear edge portion of the wing body changes, the angle at which air flows into and out of the wing body also changes. As a result, there is a possibility that the aerodynamic performance of the wing body is lowered, the air flow is insufficient, and the productivity of the blast furnace or the like is lowered. Further, if the state where the deposits are accumulated continues, the wing body may be deteriorated due to erosion or the like. If the wing body is deteriorated, the wing body may be deteriorated in strength or damaged.

  As an apparatus for cleaning the deposits on the moving blades and the stationary blades, for example, Patent Document 1 discloses a cleaning apparatus that injects a cleaning liquid from a nozzle inserted through an extraction slit provided in a casing toward the front edge of the moving blades. Is disclosed.

JP 2008-153103 A

  However, since the stationary blade of the rotating machine does not rotate with the rotating shaft, it is difficult for the cleaning device described in Patent Document 1 to clean all the stationary blades provided in the circumferential direction. In addition, when trying to clean the deposit on the trailing edge instead of the leading edge of the stationary blade, for example, in the cleaning device described in Patent Document 1, a nozzle is inserted again at a location corresponding to the trailing edge. It is necessary to rework, and the work becomes complicated.

  This invention is made | formed in view of such a subject, Comprising: The wing body washing | cleaning apparatus which can wash | clean the deposit | attachment of the wing body of a rotary machine efficiently is provided.

In order to solve the above problems, the present invention employs the following means.
According to the first aspect of the present invention, the blade body cleaning device includes a plurality of blade bodies radially arranged around the axis, and the first blade group and the second blade group that rotate relative to each other around the axis. Among them, a mounting portion attached to the blade body of the first blade group, a tank provided integrally with each of the mounting portions and storing the cleaning liquid, a pump for pumping the cleaning liquid in the tank, and a pump being pumped by the pump And a cleaning unit having a nozzle that blows out the cleaning liquid toward the blades of the second blade group.

According to such a configuration, the wing body cleaning device moves in the circumferential direction of the rotation shaft by attaching the wing body cleaning device to the wing body of the first blade group and rotating the rotation shaft. While the wing body cleaning device moves in the circumferential direction and makes a round around the rotation axis, the cleaning liquid is blown from the nozzle toward the second wing body, thereby cleaning all the second wing groups arranged in the circumferential direction. Can do. This makes it possible to easily clean the second blade group.
In addition, the wing body cleaning device includes a tank for storing the cleaning liquid and a pump for pumping the cleaning liquid in the tank, thereby reducing the cost and labor of arranging piping for supplying the cleaning liquid from the outside of the rotating machine. Can be made. Furthermore, since the operation range of the blade body cleaning device is not limited by piping or the like, the blade body cleaning device can be rotated a plurality of times before sufficient cleaning is performed. Thereby, the cleaning effect of the wing body can be enhanced.

  According to a second aspect of the present invention, in the first aspect, the blade body cleaning apparatus further includes a remote signal receiving unit that receives a control signal of the cleaning unit. The pump starts and stops the pumping of the cleaning liquid based on the pumping start control signal and the pumping stop control signal received by the remote receiver, and the nozzle is based on the angle control signal received by the remote receiver, Change the angle at which the cleaning solution is blown toward the wing.

According to such a configuration, it is possible to start and stop pumping the pump at an arbitrary timing in a state where the blade body cleaning device is attached to the blade body of the first blade group. Thereby, the start and stop of pumping can be controlled without stopping the operation of the blade body cleaning device, and the labor and time required for cleaning the blade body can be reduced. In addition, it is possible to control the spraying of the cleaning liquid only in areas where the cleaning is insufficient, thereby reducing the consumption of the cleaning liquid and preventing the blade body that does not need to be cleaned from being overloaded. .
In addition, since the angle at which the nozzle blows the cleaning liquid can be changed with the wing body cleaning device attached to the wing body of the first blade group, the spray range of the cleaning liquid can be reduced even for wing bodies with complicated shapes. It becomes possible to enlarge and spray the cleaning liquid onto the entire surface of the wing body. Further, the wing body can be efficiently cleaned, for example, the cleaning liquid is intensively sprayed to a portion where the attached amount of the attached matter on the wing body is large.

  According to a third aspect of the present invention, in the first and second aspects, the cleaning unit is disposed between two adjacent blade bodies of the first blade group.

  According to such a configuration, since the weight of the wing body cleaning device can be shared and supported by the two wing bodies, it is possible to reduce the burden on each wing body. For this reason, even if the wing body cleaning device is attached, it is possible to suppress the deformation and breakage of the wing body.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a blade body cleaning device is provided in the cleaning unit, extends toward the second blade group, and The apparatus further includes a deposit removing unit that is in sliding contact with the blades of the blade group.

  According to such a structure, the deposit | attachment adhering to the wing | blade body of a 2nd blade group can be removed because an deposit | attachment removal part directly contacts the deposit | attachment. For this reason, even if it is difficult to remove the deposit by spraying the cleaning liquid, it can be effectively removed.

  According to the blade body cleaning apparatus according to the present invention, it is possible to efficiently clean and remove the deposits on the blade body of the rotary machine.

It is sectional drawing of the rotary machine which concerns on 1st embodiment of this invention. 1 is a perspective view of a blade body cleaning apparatus according to a first embodiment of the present invention. It is a top view of the wing body washing device concerning a first embodiment of the present invention. It is a figure which shows the structure of the wing body washing | cleaning apparatus which concerns on 1st embodiment of this invention. It is a top view of the blade body washing | cleaning apparatus which concerns on 2nd embodiment of this invention. It is a top view of the wing body washing | cleaning apparatus which concerns on 3rd embodiment of this invention.

[First embodiment]
(Configuration of wing body cleaning device)
Hereinafter, the rotary machine 1 and the blade body cleaning device 60 according to the first embodiment of the present invention will be described with reference to FIGS.
The blade body cleaning device 60 is a device for cleaning the moving blade 4 and the stationary blade 5 in the rotary machine 1 such as a multi-stage axial flow blower.

  As shown in FIG. 1, the rotary machine 1 of this embodiment is a multistage axial flow blower, for example. The rotary machine 1 includes a cylindrical casing 2 that extends along an axis O, a rotary shaft 3 that rotates around the axis O inside the casing 2, and a motion that is fixed to the rotary shaft 3 and rotates with the rotary shaft 3. A blade (blade body) 4 and a stationary blade (wing body) 5 formed on the inner surface of the casing 2 and arranged alternately with the moving blade 4 in the direction of the axis O are provided.

The casing 2 is formed of a substantially cylindrical member having high airtightness in order to form an annular flow path for fluid to be pumped between the casing 2 and the rotary shaft 3. In the following description, the upstream side of the annular channel is simply referred to as the upstream side, and the downstream side of the annular channel is simply referred to as the downstream side.
The casing 2 is provided with an inspection hole 10 accessible to the inner surface of the casing 2. In addition, an inspection lid 11 is provided which can block the inspection hole 10 and maintain airtightness. In the present embodiment, the inspection hole 10 is a position corresponding to a specific moving blade 4 and is formed in a size corresponding to a range in which at least two moving blades 4 adjacent in the circumferential direction of the rotation shaft are provided. Has been.

The rotary shaft 3 is formed in a cylindrical shape extending along the axis O, and is rotated around the axis O by a power source such as an electric motor (not shown).
In the following description, the radial direction of the rotating shaft 3 is simply referred to as the radial direction, and the circumferential direction of the rotating shaft 3 is simply referred to as the circumferential direction.

  The moving blade 4 is a wing body that extends radially outward from the rotating shaft 3. A plurality of blades 4 are arranged radially at intervals in the circumferential direction at the same position in the direction of the axis O, thereby forming a blade group (first blade group). A plurality of such blade groups are arranged at intervals in the axis O direction. The rotor blades 4 feed the fluid inside the annular flow path by rotating about the axis O as the rotary shaft 3 rotates.

  The stationary blade 5 is a blade body that extends radially inward from the inner surface of the casing 2. A plurality of stationary blades 5 are radially arranged at the same position in the direction of the axis O at intervals in the circumferential direction, thereby forming a stationary blade group (second blade group). A plurality of such stationary blade groups are arranged alternately with the moving blade groups at intervals in the axis O direction. These stationary blades 5 rectify the fluid flowing inside the annular flow path and send it to the moving blade 4.

As shown in FIG. 1, for example, as shown in FIG. 1, solid matters such as dust in the air adhere to the rotor blades 4 and the stationary blades 5 as attachments S on the blade surfaces and blade edges. In order to clean the deposit S, a blade body cleaning device 60 is attached to the rotary machine 1 as shown in FIG.
In the present embodiment, a case where the blade body cleaning device 60 is attached to the moving blade 4 and the stationary blade 5 is cleaned will be described as an example.

  As shown in FIGS. 2 and 3, the blade body cleaning device 60 of the present embodiment includes a cleaning unit 61 and an attachment portion 62 for attaching the cleaning unit 61 to the moving blade 4.

As shown in FIGS. 2 and 3, the cleaning unit 61 includes a box 69 having a substantially fan-shaped cross section when viewed from the direction of the axis O. The box 69 has the appearance of the cleaning unit 61, and includes a ceiling surface 61a facing radially outward, an upstream surface 61b facing upstream, a downstream surface 61c facing downstream, and a circumferential direction. And a side surface 61d facing. In the present embodiment, the side surface 61d is formed in a curved shape so as to follow the shape of the rotor blade 4, but may be formed in a flat shape. That is, the box 69 may be formed in a substantially parallelogram shape when viewed from the radially outer side.
The ceiling surface 61 a is provided with a sliding portion 61 e that slides with the casing 2 when the blade body cleaning device 60 is attached to the rotor blade 4. For example, the sliding portion 61e is formed of a plate-like member having a smaller coefficient of friction than the box 69. However, if the sliding portion 61e can slide smoothly with the casing 2, the sliding portion 61e has other shapes such as a roller and a sled. Also good.

  As shown in FIG. 4, the cleaning unit 61 includes a cleaning liquid tank 65, an electric pump 64, a nozzle 63, a battery 67, and a remote signal receiving unit 66 in addition to the box 69.

  The cleaning liquid tank 65 is a tank for storing the cleaning liquid, and is provided inside the box 69.

  The electric pump 64 is a pump for pumping the cleaning liquid from the cleaning liquid tank 65 and pressure-feeding it, and is provided inside the box 69.

As shown in FIG. 3, the nozzle 63 is provided on the upstream surface 61 b and the downstream surface 61 c of the box 69. The nozzle 63 is formed in a tubular shape and protrudes toward the outside of the box 69. That is, the nozzle 63 provided on the upstream surface 61b has an ejection port 63a that protrudes toward the upstream side and opens at the upstream end. The nozzle 63 provided on the downstream surface 61c has an ejection port 63a that protrudes toward the downstream side and opens at the tip on the downstream side.
In the present embodiment, three nozzles 63 are provided on the upstream surface 61b and the downstream surface 61c with a gap in the radial direction, but the present invention is not limited to this configuration, and the upstream surface 61b and the downstream surface 61c One or more of them may be provided. Moreover, you may arrange | position at intervals in the circumferential direction.
Further, the nozzle 63 is provided so as to be rotatable around a position where it is attached to the cleaning unit 61 so that the ejection port 63a faces in an arbitrary direction.
The nozzle 63 is connected to the electric pump 64 by a pipe (not shown) or the like, and injects the cleaning liquid pumped from the electric pump 64 toward the outside of the box body 69 from the injection port 63a.

  The battery 67 is mounted inside the box 69 and supplies driving power to the cleaning unit 61.

  The remote signal receiving unit 66 is provided inside the box 69 and receives a control signal transmitted from the outside of the blade body cleaning device 60 via wireless communication. In the present embodiment, the remote signal receiving unit 66 receives a pumping start control signal and a pumping stop control signal for controlling start and stop of pumping of the electric pump.

  As shown in FIGS. 2 and 3, the attachment portion 62 has two upstream attachment portions 62a and two downstream attachment portions 62b.

  The upstream attachment portion 62a has a substantially semi-cylindrical shape extending in the radial direction. The upstream attachment portion 62a is connected to the side surface 61d of the box 69 on the upstream side with the inner peripheral surface facing the downstream side so that the front edge portion of the moving blade 4 can be inserted into the inner peripheral surface of the upstream attachment portion 62a. It is provided on the side in contact with the surface 61b. The leading edge of the rotor blade 4 may have different thicknesses and twisting directions depending on the radial position, the circumferential position, and the position in the axis O direction. It does not have to coincide with the shape of the front edge portion of the wing 4. What is necessary is just to be formed so that the front peripheral part of the moving blade 4 may be touched in the radial direction of the inner peripheral surface of the upstream attachment part 62a. Moreover, the two upstream attachment parts 62a may be formed in different shapes.

  The downstream attachment portion 62b has a substantially semi-cylindrical shape extending in the radial direction. The downstream attachment portion 62b is disposed downstream of the side surface 61d of the box 69 with the inner peripheral surface facing the upstream side so that the rear edge portion of the moving blade 4 can be inserted into the inner peripheral surface of the downstream attachment portion 62b. It is provided on the side in contact with the surface 61c. The trailing edge of the moving blade 4 has a different thickness and twisting direction depending on a radial position, a circumferential position, and a position in the axis O direction. It does not have to match the shape of the trailing edge. What is necessary is just to be formed so that the rear-end part of the moving blade 4 may be touched in the radial direction of the inner peripheral surface of the downstream attachment part 62b. Further, the two downstream attachment portions 62b may be formed in different shapes.

  The upstream attachment portion 62a and the downstream attachment portion 62b may be made of any material as long as it can be attached to the moving blade 4, and may be formed of an elastic member such as rubber, for example.

  In the present embodiment, the attachment portion 62 is continuously provided on the side where the side surface 61d of the box 69 contacts the upstream surface 61b and on the side where the side surface 61d of the box 69 contacts the downstream surface 61c. However, the present invention is not limited to this configuration. On each side, the configuration may be such that the attachment portion 62 is provided only on the radially inner side or only on the radially outer side. Moreover, the structure by which the some attaching part 62 is provided in the radial direction at intervals on each edge | side may be sufficient. Further, the attachment portion 62 may be provided on the upstream surface 61b, the downstream surface 61c, and the side surface 61d.

(Mounting method)
Next, a method for attaching the blade body cleaning device 60 will be described with reference to FIGS. 1 and 2.
First, the direction of the nozzle 63 of the blade body cleaning device 60 is adjusted to an arbitrary direction. The direction of the nozzle 63 is adjusted so that, for example, the cleaning liquid is sprayed to a location where the deposit S of the stationary blade 5 is likely to adhere. At this time, the direction of each nozzle 63 may be directed in the same direction, or may be directed in different directions.

  Next, as shown in FIG. 1, the inspection lid 11 of the inspection hole 10 provided in the casing 2 of the rotary machine 1 is removed.

  Then, the blade body cleaning device 60 is inserted into the casing 2 and attached so as to straddle the two moving blades 4 adjacent in the circumferential direction. Specifically, the front edge portion of the rotor blade 4 on the first circumferential side is inserted into the inner peripheral surface of the upstream attachment portion 62a on the first circumferential side. The rear edge portion of the first circumferential blade 4 is inserted through the inner peripheral surface of the first circumferential mounting portion 62b. The front edge part of the rotor blade 4 on the second circumferential side is inserted through the inner peripheral surface of the upstream mounting part 62a on the second circumferential side. The rear edge portion of the rotor blade 4 on the second circumferential side is inserted through the inner peripheral surface of the downstream mounting portion 62b on the second circumferential side. In this manner, the blade body cleaning device 60 is attached so as to straddle the two moving blades 4 adjacent in the circumferential direction.

  When the attachment of the blade body cleaning device 60 is completed, the inspection hole 10 of the casing 2 is closed again with the inspection lid 11.

(Operation)
Next, the operation of the blade body cleaning device 60 will be described.
In the state where the blade body cleaning device 60 is attached to the moving blade 4 as described above, the rotating shaft 3 is rotated around the axis O at a low speed. The rotating shaft 3 may be manually rotated by an operator or may be rotated by machine control. The rotor blade 4 provided on the rotating shaft 3 rotates around the axis O as the rotating shaft 3 rotates. Thereby, the blade body cleaning device 60 attached to the moving blade 4 moves in the circumferential direction while sliding the ceiling surface 61 a with the inner surface of the casing 2.

After the blade body cleaning device 60 starts moving in the circumferential direction, a pumping start control signal is transmitted from the outside of the rotating machine 1. The pumping start control signal may be automatically transmitted when the rotating shaft 3 is rotated, or may be transmitted by an operation of an operator.
When receiving the pressure feed start control signal from the remote signal receiver 66, the blade body cleaning device 60 performs control so that the electric pump 64 starts pressure feed. As a result, the electric pump 64 pumps the cleaning liquid from the cleaning liquid tank 65 and pumps the cleaning liquid to the nozzle 63 via a pipe (not shown).

  The blade body cleaning device 60 injects the cleaning liquid pumped from the electric pump 64 toward the stationary blade groups located upstream and downstream of the blade body cleaning device 60 from the injection port 63a of the nozzle 63. During this time, since the rotating shaft 3 continues to rotate at a low speed, the blade cleaning device 60 sequentially moves the cleaning liquid to each stationary blade 5 of the stationary blade group arranged in the circumferential direction while continuing to move in the circumferential direction. Inject.

  When the rotating shaft 3 makes one rotation around the axis O, that is, when the blade body cleaning device 60 makes one turn in the circumferential direction, the rotation of the rotating shaft 3 is stopped. The rotation shaft 3 may be manually stopped by an operator or may be stopped by machine control.

When the rotation of the rotating shaft 3 stops, a pressure stop control signal is transmitted from the outside of the rotating machine 1. The pumping stop control signal may be automatically transmitted when the rotation of the rotating shaft 3 is stopped, or may be transmitted by an operation of an operator.
When the blade cleaning device 60 receives the pumping stop control signal from the remote signal receiving unit 66, the blade cleaning device 60 performs control so that the electric pump 64 stops pumping. The electric pump 64 stops pumping the cleaning liquid from the cleaning liquid tank 65 and stops pumping the cleaning liquid to the nozzle 63. As a result, the blade body cleaning device 60 stops spraying the cleaning liquid and ends the cleaning of the stationary blade 5.

  In the present embodiment, the cleaning is finished when the rotary shaft 3 makes one rotation around the axis O. However, the cleaning shaft may be rotated a plurality of times depending on the amount of deposit S or the like. At this time, every time the rotating shaft 3 rotates around the axis O, the blade cleaning device 60 may be removed, the orientation of the nozzle 63 may be adjusted, and then the cleaning may be resumed by being attached again.

(effect)
Next, the effect of the blade body cleaning device 60 in the present embodiment will be described.
As described above, the blade body cleaning device 60 is attached to the rotor blade 4 and sprays the cleaning liquid toward the stationary blade groups upstream and downstream of the blade body cleaning device 60 while moving in the circumferential direction. Thereby, each stationary blade 5 arrange | positioned in the circumferential direction in this stationary blade group is wash | cleaned one by one. Thereby, the stationary blade 5 can be easily washed.

  A cleaning liquid tank 65, an electric pump 64, a nozzle 63, and a battery 67 are provided inside the box 69. Thereby, it is not necessary to provide piping and wiring for supplying cleaning liquid and driving force from the outside of the blade body cleaning device 60. For this reason, the cost and labor which are spent for installation of the wing body washing | cleaning apparatus 60 can be reduced. Furthermore, since the operation range of the blade body cleaning device 60 is not limited by piping and wiring, the blade body cleaning device 60 can be rotated a plurality of times until the cleaning is sufficiently performed. Thereby, the cleaning effect of the stationary blade 5 can be enhanced.

  Further, the nozzle 63 provided in the box 69 is provided so as to be rotatable around a position attached to the box 69 so that the injection port 63a faces in an arbitrary direction. Thereby, even if the stationary blade 5 has a complicated shape, the cleaning liquid can be sprayed over the entire surface of the stationary blade 5 by expanding the spraying range of the cleaning liquid. Furthermore, the stationary blade 5 can be efficiently cleaned, for example, by spraying the cleaning liquid intensively at a location where the amount of deposit S on the stationary blade 5 is large.

  In addition, a remote signal receiver is provided inside the box 69. For this reason, in the state which attached the blade body washing | cleaning apparatus 60 to the moving blade 4, the pumping start and stop of the electric pump 64 can be performed at arbitrary timings. Thereby, the start and stop of the pressure feeding can be controlled without stopping the operation of the blade body cleaning device 60, and the labor required for cleaning the stationary blade 5 can be reduced. In addition, it is possible to control the spraying of the cleaning liquid only to the places where the cleaning is insufficient, so that the consumption of the cleaning liquid is reduced, and an extra load is not applied to the stationary blade 5 that does not need to be cleaned. it can. As a result, the cleaning cost is reduced, and the cost required for parts replacement or the like is also reduced by suppressing the deterioration of the stationary blade 5 or the like.

Furthermore, the blade body cleaning device 60 is configured to be mounted so as to straddle two moving blades 4 adjacent in the circumferential direction. Thereby, since the weight of the blade body cleaning device 60 can be shared and supported by the two moving blades 4, it is possible to reduce the burden on each moving blade 4. For this reason, even if the blade body cleaning device 60 is attached, the occurrence of deformation or breakage of the rotor blade 4 can be suppressed.
The attachment portion 62 is formed in a substantially semi-cylindrical shape, and the blade body cleaning device 60 is attached by inserting the front edge portion and the rear edge portion of the moving blade 4 into the inner peripheral surface of the attachment portion 62. As a result, the blade body cleaning device 60 is inserted from the inspection hole 10 and the front edge portion and the rear edge portion of the blade 4 are inserted into the inner peripheral surface of the attachment portion 62, whereby the blade body cleaning device 60 is inserted into the blade 4. Can be easily attached to. At this time, if the front edge portion and the rear edge portion of the moving blade 4 are in contact with each other at any position in the radial direction of the inner peripheral surface of the mounting portion 62, the blade body cleaning device 60 is moved in the two adjacent directions in the circumferential direction. It can be stably fixed to the wing 4. The attachment portion 62 may be formed of an elastic member such as rubber. In this case, even if the shape of the moving blade 4 is complicated, the attachment portion 62 is elastically deformed to move. It can be attached to the wing 4.
Further, the blade body cleaning device 60 is attached to the rotor blade 4 so as to slide with the inner surface of the casing 2. Thereby, the blade body cleaning device 60 can be stably supported by the moving blade 4 and the inner surface of the casing 2. Here, since the sliding part 61 e is provided on the ceiling surface 61 a of the box 69, even if the wing body cleaning device 60 is attached so as to slide on the inner surface of the casing 2, There is no hindrance to movement in the circumferential direction. Further, it is possible to prevent the blade body cleaning device 60 and the inner surface of the casing 2 from being damaged by sliding between the blade body cleaning device 60 and the inner surface of the casing 2.

In the above-described embodiment, the configuration in which the blade body cleaning device 60 controls the start and stop of the pumping of the electric pump 64 by the pumping start control signal and the pumping stop control signal received by the remote signal receiving unit 66 has been described. However, it is not limited to this configuration. For example, the remote signal receiving unit 66 may receive a signal for controlling the pumping amount so that the pumping amount by the electric pump 64 can be adjusted. Thereby, according to states, such as the adhesion amount of the deposit | attachment S, a pumping amount can be strengthened or weakened, and it becomes possible to wash | clean the stationary blade 5 efficiently.
Further, a switch for starting pressure feeding may be provided in the blade body cleaning device 60, and when the blade body cleaning device 60 is attached, the switch may be operated to start pressure feeding. At this time, a timer or a sensor may be provided in the blade body cleaning device 60, and the pumping may be stopped after a certain time has elapsed from the start of the pumping or after moving a certain distance. Also by this, the start and stop of pumping can be controlled without stopping the operation of the blade body cleaning device 60, and the labor required for cleaning the stationary blade 5 can be reduced.

[Second Embodiment]
Next, a blade cleaning device 60 according to a second embodiment of the present invention will be described with reference to FIG.
Constituent elements common to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In the present embodiment, the remote signal receiving unit 66 included in the box 69 is different from the first embodiment.

  In the present embodiment, the remote signal receiving unit 66 receives an angle control signal for changing the direction of the nozzle 63.

  When the blade cleaning device 60 receives the angle control signal, as shown in FIG. 5, the blade cleaning device 60 rotates the nozzle 63 to control the injection port 63a in an arbitrary direction based on the angle control signal. Thereby, before attaching the blade body washing | cleaning apparatus 60 to the moving blade 4, the process of adjusting the direction of the nozzle 63 can be omitted. Further, since the direction of the nozzle 63 can be changed even when the blade body cleaning device 60 is moving in the circumferential direction, it is necessary to remove the blade body cleaning device 60 in order to adjust the direction of the nozzle 63. Disappears. Thereby, the effort and time concerning the washing | cleaning of the stationary blade 5 can be reduced. In addition, since the direction of the nozzle 63 can be changed during the operation of the blade body cleaning device 60, it is possible to control the spraying of the cleaning liquid only at a location where the cleaning is insufficient, thereby reducing the consumption of the cleaning liquid. Further, it is possible to prevent an extra load from being applied to the stationary blade 5 that does not require cleaning. Furthermore, since the direction of the nozzle 63 can be changed while the blade body cleaning device 60 is attached to the moving blade 4, even if the stationary blade 5 has a complicated shape, the spray range of the cleaning liquid can be expanded to It becomes possible to spray the cleaning liquid over the entire surface of the blade 5. Furthermore, the stationary blade 5 can be efficiently cleaned, for example, by spraying the cleaning liquid intensively at a location where the amount of deposit S on the stationary blade 5 is large.

The angle control signal may be transmitted at an arbitrary timing according to the operation of the worker. Thereby, the operator can change the direction of the nozzle 63 while confirming the adhesion state of the deposit S, and the stator blade 5 can be cleaned effectively.
Further, a part where the deposit S is likely to adhere may be investigated in advance, and an angle control signal may be automatically transmitted by a program during the operation of the blade body cleaning device 60. Thereby, the labor concerning the washing | cleaning of the stationary blade 5 can be reduced.

[Third embodiment]
Next, a blade body cleaning device 60 according to a third embodiment of the present invention will be described with reference to FIG.
Constituent elements common to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In this embodiment, the point from which the box 69 is provided with the deposit | attachment removal part 68 differs from 1st embodiment.

  As shown in FIG. 6, an adhering matter removing portion 68 that protrudes toward the outside of the box 69 is provided on the upstream surface 61 b and the downstream surface 61 c of the box 69. The deposit removal part 68 is a brush-like member, and the deposit removal part 68 provided on the upstream surface 61b can slide on the stationary blade 5 of the adjacent stationary blade group on the upstream side, and is provided on the downstream surface 61c. The adhering matter removing portion 68 can be slidably contacted with the stationary blades 5 of the adjacent stationary blade group on the downstream side. As a result, when the rotating shaft 3 is rotated about the axis O, each stationary blade 5 disposed in the circumferential direction of the stationary blade group as the blade body cleaning device 60 attached to the moving blade 4 moves in the circumferential direction. The adhering matter removing unit 68 is sequentially slidably contacted. When the blade body cleaning device 60 makes one round in the circumferential direction, the deposit S attached to the blade surface of each stationary blade 5 is removed.

  Thus, the deposit removing part 68 is in sliding contact with the stationary blade 5, so that it is possible to remove the deposit S even if it adheres to the blade surface and is difficult to clean by spraying the cleaning liquid. Thereby, the cleaning effect of the stationary blade 5 can be improved.

The embodiment of the present invention has been described above, but the present invention is not limited to this, and can be appropriately changed without departing from the technical idea of the present invention.
For example, in the above-described embodiment, a configuration in which one inspection hole 10 is provided at a position corresponding to a specific moving blade 4 has been described, but a plurality of inspection holes 10 may be provided. For example, the inspection hole 10 may be provided for each position where the moving blade group in the axis O direction is disposed. Thereby, the blade body cleaning device 60 can be attached to each blade group, and the cleaning range in the rotary machine 1 can be expanded.

Further, in the above-described embodiment, the configuration in which the blade body cleaning device 60 is attached so as to straddle the two rotor blades 4 adjacent to each other in the circumferential direction, but may be attached to one rotor blade 4.
Alternatively, two blade body cleaning devices 60 may be connected and attached so as to straddle the three moving blades 4 adjacent in the circumferential direction. Thereby, the cleaning range by the blade body cleaning device 60 is expanded, and the time for the cleaning liquid to be sprayed onto each stationary blade 5 is increased. For this reason, the cleaning effect of the stationary blade 5 can be improved without rotating the blade body cleaning device 60 a plurality of times. Further, the cleaning unit 61 of the second blade body cleaning device 60 may have a configuration in which only the cleaning liquid tank 65 is provided inside the box body 69. Thereby, even when cleaning the stationary blade 5 of the large-sized rotating machine 1 or when cleaning the blade body cleaning device 60 around a plurality of times, it is not necessary to replenish the cleaning liquid during cleaning. Work efficiency can be improved. When two blade body cleaning devices 60 are connected and attached so as to straddle the three moving blades 4 adjacent in the circumferential direction, the size of the inspection hole 10 is set to, for example, three moving blades adjacent in the circumferential direction. It is necessary to enlarge it, for example, by forming it in a size corresponding to the range in which 4 is provided.

  In the above-described embodiment, the configuration in which the blade body cleaning device 60 is attached to the moving blade 4 and the stationary blade 5 is cleaned has been described. However, the blade body cleaning device 60 is attached to the stationary blade 5 and the moving blade 4 is cleaned. May be performed. In this case, by rotating the rotating shaft 3 at a low speed, the cleaning liquid sprayed from the blade body cleaning device 60 attached to the stationary blade 5 is sequentially sprayed to each blade 4 of the adjacent blade group upstream and downstream. The Thereby, the rotor blade 4 can be easily cleaned by only rotating the rotor blade 4 together with the rotating shaft 3.

1 Axial-flow rotating machine 2 Casing 3 Rotor 4 Rotor blade (wing body)
5 Static blade (wing body)
DESCRIPTION OF SYMBOLS 10 Inspection hole 11 Inspection lid 12 Flow path 60 Wing body washing | cleaning apparatus 61 Cleaning unit 62 Mounting part 63 Nozzle 64 Electric pump (pump)
65 Cleaning liquid tank (tank)
66 Remote signal receiving part 67 Battery 68 Adhering substance removing part 69 Box O Axis S Adhering substance

Claims (4)

Of the first blade group and the second blade group that have a plurality of blades arranged radially about the axis and relatively rotate around the axis, an attachment portion that is attached to the blade body of the first blade group;
A tank provided integrally with each of the mounting portions, a tank for storing the cleaning liquid, a pump for pumping the cleaning liquid in the tank, and a nozzle for blowing the cleaning liquid pumped by the pump toward the blade body of the second blade group A cleaning unit having
Wing body cleaning apparatus comprising: A remote signal receiver for receiving a control signal of the cleaning unit;
The pump starts and stops the pumping of the cleaning liquid based on the pumping start control signal and the pumping stop control signal received by the remote receiver,
The nozzle changes the angle at which the cleaning liquid is blown toward the wing body based on the angle control signal received by the remote receiver.
The wing body cleaning apparatus according to claim 1. The cleaning unit is disposed between two adjacent blade bodies of the first blade group.
The blade body cleaning apparatus according to claim 1 or 2. Provided in the cleaning unit, and further comprising an adhering substance removing portion extending toward the second blade group and slidingly contacting the blade body of the second blade group;
The wing body washing | cleaning apparatus as described in any one of Claim 1 to 3.

Images