JP2017530323A5

JP2017530323A5 -

Info

Publication number: JP2017530323A5
Application number: JP2017500367A
Authority: JP
Filing date: 2014-08-18
Publication date: 2018-11-08
Anticipated expiration: 2034-08-18

Description

作動については、ホットレグ側３１とコールドレグ側３３は共に、柄部１４４と吸引ヘッド１４６とを備える可動型スラッジ真空吸引装置１２０によって別々に吸引される。ヘッダ６４’の設置は随意的である。スラッジとともに水が除去されると、一定の水位を保つために浄化した水をポンプによって補給する必要がある。可動型スラッジ吸引装置１２０は、出口スラッジ／制御アンビリカル１５０を介して真空ポンプ１２８に接続された前述のようなロボット繰り出し装置または他の装置によって移動できる。スラッジ除去の方向を矢印１３０で示す。当該吸引装置１２０用の随意的な取付け機構７８を図に示してある。真空ポンプ１２８は、スラッジ１３０を抽出し、出口ライン１３２を介して送出することができる。
In operation, both the hot leg side 31 and the cold leg side 33 are separately sucked by the movable sludge vacuum suction device 120 including the handle portion 144 and the suction head 146. The installation of the header 64 'is optional. When water is removed together with the sludge , it is necessary to replenish the purified water with a pump in order to maintain a constant water level. The movable sludge suction device 120 can be moved by a robot delivery device or other device as described above connected to the vacuum pump 128 via the outlet sludge / control umbilical 150. The direction of sludge removal is indicated by arrow 130. An optional attachment mechanism 78 for the suction device 120 is shown in the figure. The vacuum pump 128 can extract the sludge 130 and deliver it through the outlet line 132.

Claims

A plurality of heat transfer tubes (38) constituting the tube group (40) extend from the tube plate (34) in a matrix, and the annular portion (44) is around the heat transfer tube at the peripheral edge of the tube group. A method of operating a tool (52) within a secondary side of a steam generator (10) extending between a heat transfer tube and a barrel (12) surrounding the tube group,
Size capable of moving the annular portion, comprising the step of inserting robot vehicle for feeding the tool (52) to (54), through the penetration portion of the body portion (12) to the annular portion (44) And
When the tool moves on the tube plate, a movable sludge suction device that sucks off the sludge near the suction nozzle attached to the tool by generating a vacuum state on the tube plate. Including
The method further includes:
Positioning the robot car (54) such that the tool (52) is aligned with a lane (60) between two rows of the heat transfer tubes (38);
Extending the tool (52) a substantial distance into the lane (60);
Operating the tool (52) at an extended position in the lane (60) ;
While sucking sludge on the tube plate in the lane using the movable sludge suction device, water is contained from at least one of a plurality of hand holes above the tube plate and below the trunk portion. Preventing the drying of sludge by applying fluid to the top surface of the tube sheet and maintaining a constant water level substantially throughout the tube sheet while aspirating the stripped sludge and water;
A method comprising :

The method of claim 1, wherein the tool (52) is operated while being stretched in the lane (60).

The method of claim 2, wherein the tool (52) is a handle ( 144 ) that removes sludge.

The tool (52) is a reel feeding device (52) including a reel , and a handle ( 144 ) having a radius of curvature and a length that can be stored in the reel feeding device is suspended from the reel feeding device , and the stretching step but, by rotating the reel comprises the step of moving the handle portion (144) to said lane (60), the method of claim 1.

The method of claim 1, comprising:
Withdrawing the tool (52) from the lane (60);
Repositioning the robot car (54) to align with another lane (60);
Inserting said tool (52) into said another lane (60).

The robot car (54) includes a handle part ( 144 ) having a radius of curvature that can be turned or bent about 90 degrees when moved, and at least a part of the handle part is inside or on the robot car. The handle is slidably supported, and the handle extends substantially parallel to the tube plate (34) from the robot car and at least as long as the tool (52) is inserted into the lane (60). One end portion of the handle portion extends along the annular portion (44) and is connected to the second robot car (55), and the other end portion of the handle portion is bent by about 90 degrees. The method of claim 1, wherein the step of mounting the tool (52) and extending the tool comprises moving the second robot car toward the robot car (54) .

A plurality of heat transfer tubes (38) extend in a matrix form from the tube plate surface to form a tube group (40), and a peripheral annular portion (44) extends around the heat transfer tube at the peripheral portion of the tube group, A plurality of hand holes (62) on the tube plate (34) of the tube-type steam generator (10) allowing access to the tubeless lane (60) or the peripheral annulus extending over the surface of the tube plate. A method for removing sludge on a surface,
One or more of the hand holes (62) on the outer surface of the body (12) of the steam generator (10) are opened to one or both of the lane (60) without the narrow tube and the peripheral annular portion (44). Steps to allow access,
Without the capillary lanes (60) and the peripheral annular portion to one or both of the inner portion (44), one or more movable comprising one or more inlet (148) is equipped with suction heads (146) Introducing a mold sludge suction device (144);
Moving the movable sludge suction device (144) between the heat transfer tubes (38) on the surface of the tube plate (34);
Suctioning the sludge on the surface of the tube plate (34) using the movable sludge suction device (144) ;
While the sludge is sucked by the movable sludge suction device, a fluid containing water is added to the surface of the tube plate, so that substantially the entire tube plate is made of water while sucking off the sludge and water that have been peeled off. With steps to keep it covered
A method comprising :

The method of claim 7 , comprising inspecting on the surface of the tubesheet (34) using one or more optical scanning devices (152) mounted on or in the suction head (146).

The movable die sludge suction device (144) The method of claim 7, which is a handle portion (144) to said suction head (146) is moved between said capillary of the tube bank.

The method of claim 7 , wherein the sludge (130) is an aqueous sludge having a water level, the water level being maintained by a separate injection header (64).

The method of claim 7 , wherein sludge is removed using a vacuum pump (128).

A movable sludge suction device (120), a tube-type steam generator having a handle (144) supported on and extending from the device, and a tube plate (34) on the handle (144) . A suction head assembly (146) that is transported into the tube group (40) of (10) can be mounted, the device comprising an optional plurality of illumination means (156) , inlet (148), and visual and means (152), the lighting means desludging and have a function to inspect, change direction about 90 degrees when the handle portion (144) is extendable a transfer from the top surface of the tube plate A movable sludge suction device having a radius of curvature capable of bending and stretching, wherein the suction head assembly is used to suck aqueous sludge and water from the tube group .

A remote control robot device for operating a tool (52) on a tube plate (34) in a steam generator (10), the steam generator being a secondary part of the body (12) and the steam generator. A tube group housed in the body portion on the side, the tube group comprising a plurality of heat transfer tubes (38) extending in a matrix from the tube plate, and the heat transfer tubes at the peripheral edge of the tube group and the tube groups An annular part (44) extends between the body part surrounding the heat transfer tube,
A first robot car (54) sized to move at least a portion of the annular part (44);
At least a part is a handle (144) supported by the first robot car (54), and the handle is substantially between the two rows of heat transfer tubes (38) from the first robot car. Can be extended into the lane (60) or pulled out from the lane (60) via the first robot car, and the tool is attached to the first end of the handle (144). (52) is supported,
A controller (56) for controlling the stretching of the handle (144) and the operation of the tool (52) during the stretching;
A remote control robot apparatus comprising:
The handle portion (144) have a movement makes it approximately 90 degrees turning or bending is possible radius of curvature of the internal or sliding thereon at least a portion of said handle portion said first robot vehicle (54) is movably supported, the tube plate the handle portion from the first robot vehicle (34) and substantially parallel, the lane between the tool (52) of the heat transfer tube of the two rows (38) (60) at least to the same distance stretching the inserted length into the second end of the handle portion is connected to the second robot vehicle extends along the annular portion (44) (55), the first end of the handle portion is mounted with the tool (52) is bent the approximately 90 degrees, the second robotic vehicle moves the annulus independent of vehicle the first robot You can change the length of the handle portion extending between the heat transfer tubes of the two columns by Remote control robot apparatus, characterized in that the size.