JP4970014B2 - Feeding and unloading method of feed water heater - Google Patents

Description

  The present invention relates to a method for carrying in a water heater for installing a cylindrical water heater at a predetermined installation location in a building, and a cylindrical water heater installed at a predetermined installation location in a building. The present invention relates to a method for carrying out from the predetermined installation location.

A steam heater with a built-in condenser water heater is used. Since this feed water heater deteriorates due to long-term use, renewal work is required. The renewal work requires the work to remove the existing water heater and carry it out of the building, and to carry in and install the new water heater in the building (see, for example, Patent Document 1). It was a very difficult task.
JP 11-325405 A

  That is, the feed water heater is a long and super heavy heat exchanger, and the installation place is a high and narrow place in the upper body of the condenser. Therefore, it is difficult to carry the feed water heater into the building, to carry it out of the building, to carry it into the building, and to incorporate it into the condenser, thereby reducing the labor of the worker and making it easy and short-term. It has been desired to realize a construction method that can perform work in between.

  An object of the present invention is to provide a feed water heater that can handle a water heater that is a long and super heavy heat exchanger relatively easily, reduces the labor of an operator, and can perform work in a short period of time. It is in providing the carrying-in method and carrying-out method of a container.

The method for carrying in a feed water heater according to the present invention includes a cylindrical water feed heater installed outside a building having an opening in a side wall, and a restoration device located at a position lower than the installation position inside the building. a carrying method of the feed water heater for installation in water vessel top, the outdoor carrying gantry leading to apertures for carrying said outside the building is provided, on the said building, said condensate from said opening and communicates with the vessel upper part, provided with an indoor carrying gantry in a position lower than the upper surface of the outdoor carrying gantry, adjacent to the opening, and the upper surface is equal height as the upper surface of the indoor transport gantry, the outdoor An elevating table configured to be movable up and down so as to be located at the same height as the upper surface of the transfer gantry is provided, and the feed water heater is placed on the outdoor transfer gantry in front of and behind the feed water heater in a sideways state. versus levitation transportation system of use A is placed, the feed water heater by the levitation transportation system, transported by floating state toward the opening, the outdoor carrying gantry in the state in which the feed water heater was placed on the levitation transportation system after moving to the upper surface of the elevating table is raised to equal the height of the upper surface, turned down lift force of the levitation transportation system, fixing the feed water heater on the lifting table, the lifting table, the The upper surface is lowered to a height equal to the upper surface of the indoor transportation gantry, and in this state, the feed water heater is transported by the levitating transport system toward the upper part of the condenser in the levitating state on the indoor transport gantry, A traveling rail is installed on the upper part of the condenser, and a front carriage and a rear carriage of the feed water heater are installed on the traveling rail, and the levitation force of the front levitation conveyance system The front part of the feed water heater is reduced and installed on the front carriage, the levitation force of the rear floating conveyance system is reduced, and the rear part of the feed water heater is installed on the rear carriage, and the water supply A heater is installed on the top of the condenser .

Also, the method for carrying out the feed water heater according to the present invention comprises a cylindrical feed water heater installed at the upper part of a condenser having an opening in a side wall, and a building at a position higher than the installation position in the building. the method of unloading the feed water heater for conveying outdoors, the outdoor carrying gantry leading to apertures for exiting transportable to the building outside provided, the said building, said from the opening condenser and leads to the top, the position lower than the upper surface of the outdoor carrying gantry provided with an indoor conveying gantry, adjacent to the opening, the upper surface, the height equal to the top surface of the indoor transport gantry, the outdoor transport An elevating table configured to be movable up and down so as to be located at the same height as the upper surface of the gantry is provided, and a traveling rail is installed on the upper part of the condenser, and the sheet feeding heater is disposed on the traveling rail. Installed front and rear trolleys Installing a levitation conveyance system consisting of a pair of levitation conveyance systems for the front and rear of the feed water heater, and increasing the levitation force of the rear levitation conveyance system at the rear of the feed water heater on the rear carriage Placed on the rear levitation transfer system, and placed the front part of the water heater on the front carriage on the front levitation transfer system by increasing the levitation force of the front levitation transfer system. The feed water heater is moved to the upper surface of the lift table while floating on the indoor transport gantry by the floating transport system, and the floating power of the lift transport system is cut off, and the feed water heater is placed on the lift table. fixed, the lifting table is raised to the outdoor transportation gantry top height equal, the increase the levitation force of the levitation transportation system, and placing the feed water heater on the levitation transportation system, the paper Towards the heater in the opening conveyed by floating state, characterized by transporting said feed water heater to a predetermined position on the outdoor carrying gantry.

In addition, the method for carrying in the feed water heater according to the present invention is such that the cylindrical feed water heater installed outside the building having an opening on the side wall is located at a position lower than the installation position outside the building. a carrying method of the feed water heater for installation in a certain condenser top, the building outside of the provided outdoor conveying gantry leading to apertures for loading, the said building, said from the opening An indoor conveyance gantry is provided at a position lower than the upper surface of the outdoor conveyance gantry, and a lift moving rail is installed on the indoor conveyance gantry close to the opening. Adjacent, portal-shaped front and rear lift units each having a suspension beam at the upper end, the suspension beam being able to rise above the height of the water heater installed outside the building Yes, each lift unit A gate-shaped front lift unit and a rear lift unit capable of propelling the apparatus and propelling on the lift moving rails are provided, and the suspension beams of the front lift unit and the rear lift unit are arranged outside the building. It is raised above the height of the installed feed water heater, and on the outdoor transport gantry, the feed water heater is placed on an outdoor levitation transport system. In a state where the feed water heater is levitated and conveyed toward the opening, moved to the building through the opening, and placed on a temporary receiving stand disposed in the building, Two places before and after the feed water heater are suspended on the lift unit and the feed water heater is lowered onto the indoor floating transportation system on the indoor transportation gantry. The feed water heater is transported to the upper part of the condenser in a floating state on the indoor transportation gantry by the floating transportation system for indoors composed of a pair of front and rear floating transportation systems, and runs on the upper part of the condenser. A rail is installed, and a front carriage and a rear carriage of the feed water heater are installed on the traveling rail, and the front part of the feed water heater is moved forward by reducing the levitation force of the front floating conveyance system. It is installed on a side carriage, and the rear part of the feed water heater is installed on the rear side carriage by reducing the levitation force of the rear floating transportation system, and the feed water heater is installed on the upper part of the condenser. .

The method of unloading the feed water heater according to the present invention, construction of a cylindrical feed heater which is installed in the condenser top of the building with an opening at a side wall higher than the installation position in the building position a transportable attitude method feed heater for conveying outdoors, the outdoor carrying gantry leading to apertures for exiting transportable to the building outside provided, the said building, said recovery from the opening An indoor transport gantry is provided at a position lower than the upper surface of the outdoor transport gantry, and a lift moving rail is installed on the indoor transport gantry close to the opening, adjacent to the opening. A front-side lift unit and a rear-side lift unit each provided with a suspension beam at the upper end, wherein the suspension beam can be raised above the height of the feed water heater installed outdoors. The unit can suspend the feed water heater, The front-side lift unit and the rear-side lift unit capable of propelling on the lift moving rail are provided, and a traveling rail is installed on the upper portion of the condenser, and the front side of the feed water heater is disposed on the traveling rail. An indoor levitation conveyance system comprising a pair of front and rear levitation conveyance systems, and a rear portion of the water heater on the rear trolley is installed in the rear levitation conveyance system. The front levitation force of the front levitation conveyance system is increased by increasing the levitation force of the front levitation conveyance system. It is mounted on a transfer system, and the feed water heater is transported toward the lift unit in a floating state on the indoor transport gantry by the indoor floating transport system, and the feed water heater is moved to the indoor floating transport system. Wherein the arm is Tsu支the front lift unit and the rear lift unit, the advance of the feed water heater is raised to a position higher than the upper surface of the outdoor carrying gantry, at least a portion of the feed water heater in this raised position while supported by the cradle for temporary supporting the feed water heater to the conveyed on outdoor carrying gantry reloaded on outdoor levitation transportation system, the feed water heater through the opening by the outdoor levitation transportation system It conveys to the predetermined position on the said gantry for outdoor conveyance in the floating state.

  According to the present invention, a feed water heater, which is a long and super heavy heat exchanger, can be handled relatively easily by using a floating conveying system, a lifting table, a lift unit, etc. The work can be performed in a short period of time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  Drawing 1 is a figure explaining the case where a new feed water heater is carried in to a predetermined installation location. In FIG. 1, reference numeral 1 denotes a cylindrical water heater, which is installed in a lateral state in a predetermined installation location in the power plant building, in the example shown in the upper body 2 a of the condenser 2. 6 is an opening for carrying in, and is formed on the side wall of the building as shown. Reference numeral 8 denotes an outdoor transfer gantry, which is installed outside the building and reaching the opening 6 and is used for transferring the feed water heater 1. Reference numeral 7 denotes an indoor transfer gantry, which constitutes a transfer path that leads from the opening 6 in the building to the predetermined installation location.

  Reference numeral 10 denotes an elevating table, which is installed adjacent to the opening 6 in the building, and its upper surface (table surface) 10a is equal in height to the upper surface of the indoor transfer gantry 7 and equal to the upper surface of the outdoor transfer gantry 8. It is configured to be movable up and down so as to be located at the height. As shown in FIG. 3, the lift table 10 includes a lift unit 10b that drives a flat table surface 10a to move up and down, and a hydraulic control unit 10c for the lift unit 10b.

  Reference numeral 14 denotes a levitation conveyance system, on which the feed water heater 1 is mounted in a horizontal state on the indoor conveyance gantry 7 and the outdoor conveyance gantry 8, and is conveyed in an arbitrary direction in the floating state. As shown in FIG. 2, the levitation conveyance system 14 includes an air levitation device 14a and a driving device 14b, and these constitute a front side levitation conveyance unit 14c and a rear side levitation conveyance unit 14d. The synchronization control device 14e operates the two driving devices 14b in synchronization with each other.

  Here, the air levitation device 14a is levitated to a predetermined height by high-pressure air in a state where the feed water heater 1 is mounted on the upper portion thereof. Further, although not shown, the driving device 14b has wheels that are pressed against the ground surface by air pressure or the like, and the front-side levitation conveyance unit 14c and the rear-side levitation conveyance unit 14d by rotating the wheels by a pneumatic motor or the like. Is moved in any direction. Therefore, the feed water heater 1 supported on the upper part can be conveyed in arbitrary directions.

  A running rail 24 is installed along the installation direction of the feed water heater 1 inside the condenser upper body 2a, which is the installation location of the feed water heater 1. On this traveling rail 24, two carriages 21 for installing the feed water heater 1 are installed as a front side and a rear side. As shown in FIG. 4, a carriage receiver 22 is provided on each of the left and right sides and front and rear in the longitudinal direction on the outer periphery of the feed water heater 1, and is mounted on the carriage 21 via the adjustment plate 23 by the hardware 22. Placed.

  In addition, a jack catch 19 is provided on the left and right sides of the outer periphery of the feed water heater 1 and in the longitudinal direction, and the tip of a centering jack 18 provided on the traveling rail 24 side is provided. Abut. The centering jack 18 is movably installed on the traveling rail together with the lateral feed device 20. The centering jack 18 and the lateral feed device 20 are arranged in a predetermined positional relationship with the carriage 21. That is, the position of the jack 18 is set so that the tip of the jack 18 faces the jack receiving piece 19 when the carriage receiving piece 22 of the feed water heater 1 is installed on the carriage 21.

  A traction device 27 is connected to the carriage 21 and moves the feed water heater 1 placed on the carriage 21 to a predetermined installation (installation) position.

  In the above configuration, when the cylindrical water heater 1 is installed in a predetermined position in the building, that is, in the upper body 2a of the condenser 2 in a sideways state, first, it is carried into the side wall of the building. The opening 6 is formed. The opening 6 may be formed by opening the shutter or the like that has been previously drilled and covered with the shutter or the like. In addition, an outdoor transfer gantry 8 reaching the opening 6 is installed outside the building, and an indoor transfer gantry 7 is also installed inside the building and in the opening 6. Further, a lifting table 10 is installed adjacent to the opening 6 in the building.

  In this state, the levitation conveyance system 14 is disposed on the outdoor conveyance gantry 8, and the feed water heater 1 is placed in a horizontal state thereon by a crane (not shown). The levitation conveyance system 14 levitates the water heater 1 on the outdoor conveyance gantry 8 by the front and rear levitation conveyance units 14 c and 14 d and conveys the water heater 1 toward the opening 6.

  At this time, the level of the upper surface 10a of the lifting table 10 is set to the same level as the upper surface of the outdoor transfer gantry 8 by operating the hydraulic control unit 10c.

  The feed water heater 1 moved on the outdoor transportation gantry 8 by the floating transportation system 14 is placed on the upper surface 10 a of the lifting table 10 through the opening 6. Then, the levitation force of the levitation conveyance system 14 is cut off, and the feed water heater 1 is fixed on the lifting table 10.

  Next, the upper surface 10 a of the lifting table 10 is lowered to a height equal to the upper surface of the indoor transfer gantry 7. In this state, the feed water heater 1 is lifted again by the levitation transport system 14 and transported on the indoor transport gantry 7 toward a predetermined installation location.

  An example of the transport route in the building is shown in FIG. In the example of FIG. 5, three condensers 2 are arranged side by side. For example, when the feed water heater 1 is installed in the upper main body 2 a on the left side, the feed water heater 1 carried through the opening 6 is levitated. It is levitated by the conveyance system 14 and conveyed on the indoor conveyance gantry 7. In the example shown in the figure, the water heater 1 is turned so that the front and rear of the water heater 1 are reversed while avoiding structures (such as obstacles to transportation) such as columns in the building. It conveys to the position facing the opening 2b.

  In this way, after the feed water heater 1 is transported near a predetermined installation location by the levitation transport system 14, at least two places before and after the feed water heater 1 are sequentially replaced on the installation cart 21. Move to the specified installation location. That is, after the feed water heater 1 is transported to the vicinity of the condenser upper body 2a, the floating transport system 14 is operated, and the front carriage receiver 22 provided on the outer periphery of the feed water heater 1 is replaced with the condenser. Positioning is performed on the carriage 21 on the front side of the traveling rail 24 installed in the upper body 2a. Thereafter, the air pressure of the front-side levitation conveyance unit 14 c is reduced, and the cart receiver 22 at the front of the feed water heater 1 is fixed on the cart 21. Thereafter, the feed water heater 1 is further inserted into the condenser upper body 2a by the levitation transport system 14, the rear carriage receiver 22 is aligned on the rear carriage 21, and then fixed and replaced. Complete. In this state, the traction device 27 is operated and pulled to a predetermined installation position in the container.

  In addition, centering and installation of the feed water heater 1 are performed by operating the jack 18 and the lateral feed device 20 via the jack receiving piece 19.

  In this embodiment, the opening 6 on the side wall of the building is opened, the indoor transportation gantry 7 and the outdoor transportation gantry 8 are laid, and then the floating transportation system 14 and the lifting table 10 are operated from the side wall opening 6 to supply the water heater 1. Into the building. The indoor conveyance is performed by operating the floating conveyance system 14 again on the indoor conveyance gantry 7, transferred to the carriage 21 disposed inside the condenser upper body 2 a, and pulled in and installed by the traction device 27.

  The removal method of the existing feed water heater 1 is performed in the reverse order of the above. That is, the feed water heater 1 installed on the installation carriage 21 at a predetermined installation location in the building is moved onto the indoor conveyance gantry 7 by the traction device 27, and the indoor conveyance gantry 7 is placed on the indoor conveyance gantry 7. It is transferred onto the floating transportation system 14 arranged. The feed water heater 1 transferred onto the levitation conveyance system 14 is levitation and conveyed toward the opening 6 opposite to the path shown in FIG. It is conveyed and placed on the upper surface 10a of the lift table 10 positioned.

  In this state, after the upper surface 10a of the lifting table 10 is raised to a height equal to the upper surface of the outdoor transfer gantry 8, the floating transfer system 14 passes the opening 6 and floats on the outdoor transfer gantry 8 at a predetermined position. Transport to.

By using the lifting table 10 in this way, level adjustment with the outdoor transfer gantry 8 and the indoor transfer gantry 7 can be easily performed. Further, by using the levitation conveyance system 14, it is possible to convey consistently from outdoor to indoor conveyance. Furthermore, the transfer to the carriage 21 in the condenser upper body 2a can be easily performed. It is also effective for loading and unloading equipment.

  Next, the embodiment shown in FIG. 6 will be described. As in the embodiment shown in FIG. 1, this embodiment is also a method for carrying in a new feed water heater into a predetermined installation location, but instead of the lifting table 10 shown in FIG. As shown in FIG. 6, a lift system 11 including two lift units 11 a and 11 b is used, and these are provided adjacent to the opening 6.

  That is, also in this embodiment, the opening 6 for carrying in is formed in the side wall of a building, the outdoor conveyance gantry 8 which reaches this opening 6 is provided in the building exterior, and from the opening 6 in a building An indoor transfer gantry 7 that leads to a predetermined installation location is provided. A floating transfer system 14 is used for transfer on the transfer gantry 7 and 8 indoors and outdoors.

  In this embodiment, as described above, the lift system 11 is provided adjacent to the opening 6 in the building. The lift system 11 includes two lift units 11a and 11b. These lift units 11a and 11b form a gate shape as shown in FIG. 7, and suspend the outer peripheral portion of the feed water heater 1 in the gate. That is, the lift system 11 includes a front lift unit 11a, a rear lift unit 11b, a suspension beam 11c provided for each of the lift units 11a and 11b, a propulsion unit 11d, a hydraulic control unit 11e, a wire rope 11f, and a rail 11g. Composed.

  As shown in FIG. 7B, a pair of left and right wire ropes 11f is suspended from each suspension beam 11c, and the lower ends thereof are hooked on trunnions 1c protruding from both sides of the outer periphery of the feed water heater 1. It is done. Each suspension beam 11c is controlled to an arbitrary height by the hydraulic control unit 11e. Moreover, the propulsion part 11d comprised by the base part of each lift unit 11a, 11b is engaged with the rail 11g so that a movement is possible. This rail 11g is arranged on the indoor transfer gantry 7 near the opening 6 along the horizontal direction in the figure (the direction of carrying in / out the feed water heater 1 with respect to the building), and the front side lift unit 11a and the rear side lift The unit 11b can be moved to any position along the rail 11g.

  In the above configuration, when the cylindrical water heater 1 is installed in the upper body 2a of the condenser 2 in the building, an opening 6 for carrying in is formed on the side wall of the building, and this opening is provided outside the building. The gantry 8 for outdoor conveyance reaching 6 is installed. In addition, an indoor transfer gantry 7 is installed in the building from the opening 6 to a predetermined installation location.

  A lift system 11 is installed adjacent to the opening 6. In this case, the front side lift unit 11a and the rear side lift unit 11b are arranged at predetermined intervals along the direction in which the feed water heater 1 is carried in, as shown in FIG. Each of these suspension beams 11c is raised to a position higher than the feed water heater 1 by the hydraulic control unit 11e.

  In this state, the levitation conveyance system 14 is disposed on the outdoor conveyance gantry 8, and the feed water heater 1 is placed in a horizontal state thereon by a crane (not shown). And by this levitation conveyance system 14, the feed water heater 1 is levitated and conveyed on the outdoor conveyance gantry 8 toward the opening 6. As shown in FIG. 6, the conveyed feed water heater 1 passes through the opening 6 and the left end portion in the drawing is inserted into the building.

  In this positional relationship, the wire rope 11f of the front side lift unit 11a is hung on a trunnion 1c protruding from both sides of the outer peripheral portion on the rear side (left side in the figure) of the feed water heater 1. And the rear side of the feed water heater 1 is slightly lifted by the front side lift unit 11a via the wire rope 11f. The front-side levitation transport unit 14c that has become unloaded by this lifting is removed. Thereafter, the rear-side floating conveyance unit 14d arranged outdoors and the indoor front-side lift unit 11a are operated to move the feed water heater 1 to the position shown in FIG. Then, the rear portion (left side in the figure) of the feed water heater 1 is placed on the temporary receiving base 28 via the spacer 29 and temporarily received. In this state, the rear trunnion 1c is switched from the front lift unit 11a to the wire rope 11f of the rear lift unit 11b.

The front-side lift unit 11a, which has become free by this switching operation, is moved to the right in the figure, and the wire rope 11f is hung on the trunnion 1c on the water chamber (right end) in the feed water heater 1,
Lift slightly.

  In this way, the feed water heater 1 is transported toward the opening 6 by the levitation transport system 14 on the outdoor transport gantry 8, moved to the building through the opening 6, and at least a part of the temporary heater is disposed in the building. In the state of being placed on the receiving stand 28, at least two front and rear portions of the outer peripheral portion of the feed water heater 1 are suspended by the lift units 11a and 11b.

  As a result, the entire feed water heater 1 is slightly lifted by the two lift units 11a and 11b of the lift system 11 while maintaining a horizontal state. The rear-side transport unit 14d, the temporary support base 28, and the spacer 29, which are brought into the no-load state by this operation, are removed. Thereafter, the lift system 11 is moved to the left in the figure while maintaining the horizontal state of the feed water heater 1. And after the feed water heater 1 whole is carried in in a building, as shown in FIG. 10, the feed water heater 1 is lowered | hung on the floating conveyance system 14 on the gantry 7 for indoor conveyance.

  In addition, when trying to move the lift system 11 to the left in the figure while keeping the horizontal state of the feed water heater 1 from the state shown in FIG. 8, as shown in FIG. Therefore, the horizontal movement of the feed water heater 1 may be hindered. When there is such an obstacle or obstacle 30, as shown in FIG. 9, by operating the height positions of the rear side lift unit 11b and the front side lift unit 11a individually, The angle can be continuously changed to move to a predetermined position while avoiding these obstacles 30, and can be mounted on the levitation transport system 14 as shown in FIG.

  Thereafter, the feed water heater 1 is lifted again by the levitation transport system 14 and transported on the indoor transport gantry 7 toward a predetermined installation location. The transport route in the building is, for example, as shown in FIG. Similarly to the example of FIG. 5, three condensers 2 are arranged in parallel in this example, and when the feed water heater 1 is installed in the upper body 2 a on the left side of the figure, the condenser 2 is carried in from the opening 6. The feed water heater 1 is swung so that the front and rear are reversed while avoiding structures such as a column in the building by the levitation conveyance system 14, and the water chamber portion is opposed to the opening 2b of the condenser upper body 2a. Transport to position. After the feed water heater 1 is transported near a predetermined installation location in this way, at least two front and rear locations of the feed water heater 1 are sequentially placed on the installation carriage 21 and moved to the predetermined installation location by the carriage 21. Install. Since this installation procedure is the same as that of the above-mentioned embodiment, description is abbreviate | omitted.

  The removal method of the existing feed water heater 1 is performed in the reverse order of the above. That is, the feed water heater 1 installed on the installation carriage 21 at a predetermined installation location is moved onto the indoor conveyance gantry 7 by the traction device 27 and arranged on the indoor conveyance gantry 7. Transfer on the floating transportation system 14. The feed water heater transferred onto the levitation conveyance system 14 moves in the direction opposite to the path shown in FIG. 11 in the levitation state and is conveyed toward the opening 6.

  Then, at the position adjacent to the opening 6, the lift units 11 a, 11 b suspend two front and rear portions of the feed water heater 1 and raise it to a height slightly higher than the upper surface of the outdoor transfer gantry 8. Thereafter, the lift units 11a and 11b are moved to the right side in the figure at this raised position, and the right end side of the feed water heater 1 is moved to the rear side transfer unit 14d on the outdoor transfer gantry 8 as shown in FIG. Transfer. Thereafter, the illustrated left end portion of the feed water heater 1 is placed on the temporary receiving base 28 via the spacer 29. In this state, the lift unit 11a that has become free is moved to the left in the figure, and the trunnion 1c on the left in the figure of the feed water heater 1 is suspended in place of the lift unit 11b.

  The gantry 28 and the spacer 29 that have become unloaded by this operation are removed, and the rear side transfer unit 14d on the outdoor transfer gantry 8 is moved to the right in the figure, and the left side of the feed water heater 1 in the building is illustrated. Is lifted to the right as shown in FIG. In this state, the illustrated left portion of the feed water heater 1 is placed on the front-side floating conveyance unit 14c on the outdoor conveyance gantry 8.

  Thus, after raising the feed water heater 1 to a height slightly higher than the upper surface of the outdoor transfer gantry 8 by the lift units 11a and 11b at the position adjacent to the opening 6 in the building, The feed water heater 1 is mounted on the floating conveyance system 14 that conveys on the outdoor conveyance gantry 8 while at least a part is supported by the temporary receiving frame 28.

  Thereafter, the feed water heating system 1 is transferred to a predetermined position on the outdoor transfer gantry 8 through the opening 16 by the levitation transfer system 14.

  Thus, by using the lift system 11, it is possible to easily carry the feed water heater 1 indoors while cooperating with the floating transportation system 14 installed outdoors. Further, even when there is an interfering object 30 in front of the drawing-in in the building, by operating the lift system 11, it can be pulled in while avoiding the interfering object 30 and can be easily mounted on a floating system for indoor transportation.

It is a figure explaining one Embodiment of the feed water heater carrying-in method by this invention. It is a figure explaining the structure of the levitation conveyance system used for one embodiment same as the above. It is a figure explaining the raising / lowering table used for one Embodiment same as the above, (a) is a front view, (b) is a right view. It is an AA arrow line view of FIG. It is a top view explaining the conveyance path | route in a building in one embodiment same as the above. It is a figure explaining other embodiment of the feed water heater carrying-in method by this invention. It is a figure explaining the structure of the lift system used for other embodiment same as the above, (a) is a front view, (b) is a right view. It is a figure explaining the step which switches from outdoor conveyance to indoor conveyance in other embodiment same as the above. It is a figure explaining operation | movement in case there exists an obstruction at the time of switching to indoor conveyance in other embodiment same as the above. It is a figure explaining the state switched to indoor conveyance in other embodiment same as the above. It is a top view explaining the conveyance path | route in a building in other embodiment same as the above.

Explanation of symbols

1 Water heater
1c Trunnion 2 Condenser 2a Condenser upper body 2b Condenser upper body opening 6 Side wall opening 7 Indoor transfer gantry 8 Outdoor transfer gantry 10 Lifting table 10a Upper surface (table surface)
10b Lift unit 10c Hydraulic control unit 11 Lift system 11a Front side lift unit 11b Rear side lift unit 11c Suspension beam 11d Propulsion unit 11e Hydraulic control unit 11f Wire rope 11g Rail 14 Levitation transport system 14a Air levitation device 14b Drive device 14c Front Side levitation transport unit 14d Rear side levitation transport unit 14e Synchronous control device 18 Jack 19 Jack catch 20 Transverse feed 21 Bogie 22 Bogie catch 23 Adjustment plate 24 Rail for running in condenser 25 Bogie running rail 26 Feed water heating Moving device mount 27 Pulling device 28 Temporary receiving mount 30 Interfering object, obstacle

Claims (4)

A water heater for installing a cylindrical water heater installed outside a building in an upper part of a condenser located in a building having an opening on a side wall and lower than the installation position of the building outside . The method of carrying in
The outdoor carrying gantry leading to apertures for carrying said outside the building is provided,
The said building, said from the opening and through the condenser top, provided with an indoor carrying gantry in a position lower than the upper surface of the outdoor carrying gantry, adjacent said opening, an upper surface, the indoor A lifting table configured to be vertically movable so as to be positioned at a height equal to the upper surface of the transfer gantry and a height equal to the upper surface of the outdoor transfer gantry;
The feed water heater is placed on the levitation conveyance system for the front and rear of the feed water heater on the outdoor conveyance gantry in a horizontal state, and the feed water heater is placed in the opening by the levitation conveyance system. headed transported by floating state, after moving the feed water heater to the upper surface of the outdoor carrying gantry top height equal to the lift table is raised in the state in which is placed on the levitation transportation system , Cutting off the levitation force of the levitation conveyance system, fixing the feed water heater on the lifting table,
The temperature Fute Buru, its upper surface so that is lowered to a height equal to the indoor transport gantry top, in this state, the feed water heater by the levitation transportation system, the condensate in the floating state on the indoor transport gantry To the top of the vessel ,
A running rail is installed on the upper part of the condenser, and a front carriage and a rear carriage for the water heater are installed on the running rail to reduce the levitation force of the front levitation transfer system and to heat the feed water. The front part of the water heater is placed on the front carriage, the floating force of the rear floating transport system is reduced, the rear part of the feed water heater is placed on the rear carriage, and the feed water heater is A method for carrying in a feed water heater, characterized in that it is installed at the top of the water vessel . A method for carrying out a feed water heater for transporting a cylindrical feed water heater installed at the top of a condenser in a building to the outside of the building, which is higher than the installation position in the building with an opening on the side wall. There,
The outdoor transport gantry leading to the apertures for the exit transportable to the building outside provided,
The said building, said from the opening and through the condenser top, provided with an indoor carrying gantry in a position lower than the upper surface of the outdoor carrying gantry, adjacent said opening, an upper surface, the indoor A lifting table configured to be vertically movable so as to be positioned at a height equal to the upper surface of the transfer gantry and a height equal to the upper surface of the outdoor transfer gantry;
A traveling rail is installed on the upper part of the condenser, and a front carriage and a rear carriage for the paper feed heater are installed on the traveling rail, and a pair of floating transportation systems for front and rear of the water heater are installed. A floating transportation system consisting of
The rear part of the feed water heater on the rear carriage is placed on the rear float transfer system with increasing the floating force of the rear float transfer system, and the front of the feed heater on the front carriage A part is placed on the front levitation transport system by increasing the levitation force of the front levitation transport system,
The feed water heater is moved to the upper surface of the lift table while floating on the indoor transport gantry by the floating transport system, and the lift force of the lift transport system is cut off, and the feed water heater is fixed on the lift table. And raising the lifting table to a height equal to the upper surface of the outdoor transfer gantry , increasing the levitation force of the levitation transfer system, placing the water heater on the levitation transfer system, and the water heater Is conveyed in a floating state toward the opening, and the feed water heater is transported to a predetermined position on the outdoor transport gantry. A water heater for installing a cylindrical water heater installed outside a building in an upper part of a condenser located in a building having an opening on a side wall and lower than the installation position of the building outside . The method of carrying in
The outdoor carrying gantry leading to apertures for carrying said outside the building is provided,
Wherein the the building, which leads from the opening into the condenser top, the position lower than the upper surface of the outdoor carrying gantry provided with an indoor carrying gantry, lift the indoor carrying on gantry closer to the opening A front-side lift unit and a rear-side lift unit each provided with a moving rail and adjacent to the opening, each having a suspension beam at an upper end thereof, wherein the suspension beam is installed outside the building. The lift unit can be raised above the height of the heater, each lift unit can suspend the feed water heater, and can further include a portal-type front lift unit and a rear lift unit capable of propelling on the lift moving rail. Provided,
The suspension beams of the front lift unit and the rear lift unit are raised above the height of the water heater installed outside the building, and the water heater is used outdoors on the outdoor transfer gantry. It is placed on a levitation conveyance system, and the feed water heater is levitated and conveyed toward the opening by the outdoor levitation conveyance system, moved to the building through the opening, and at least a part of the feed water heater is built. In a state where the water heater is placed indoors, the front and rear portions of the water heater are suspended by the lift unit, and the water heater is floated indoors on the indoor carrier gantry. Down on the system,
In this state, the feed water heater is transported toward the top of the condenser in a floating state on the indoor transport gantry by the indoor floating transport system composed of a pair of front and rear floating transport systems,
A running rail is installed on the upper part of the condenser, and a front carriage and a rear carriage for the water heater are installed on the running rail to reduce the levitation force of the front levitation conveyance system and to supply the water. Install the front part of the heater on the front trolley, reduce the levitation force of the rear levitation transport system, install the rear part of the feed water heater on the rear trolley, and heat the feed water above the condenser A method for carrying in a feed water heater, characterized by installing a water heater. Transportable attitude feed heater for conveying the cylindrical feed heater which is installed in the condenser top of the building, the building outside the position higher than the installation position in the building with an opening at a side wall Law,
The outdoor transport gantry leading to the apertures for the exit transportable to the building outside provided,
Wherein the the building, which leads from the opening into the condenser top, the position lower than the upper surface of the outdoor carrying gantry provided with an indoor carrying gantry, lift the indoor carrying on gantry closer to the opening Install the moving rails
Adjacent to the opening, each is a portal-shaped front lift unit and a rear lift unit each having a suspension beam at the upper end, and the suspension beam can be raised above the height of the water heater installed outdoors. Yes, each lift unit can suspend the feed water heater, further provided with a portal-shaped front lift unit and a rear lift unit capable of propelling on the lift moving rail,
A traveling rail is installed on the upper part of the condenser, and a front carriage and a rear carriage of the water heater are installed on the traveling rail, and the indoor floating transportation system includes a pair of front and rear floating transportation systems. The system is installed, and the rear part of the water heater on the rear carriage is placed on the rear floating transportation system by increasing the floating force of the rear floating transportation system, on the front carriage. The front part of the feed water heater is placed on the front levitation transport system by increasing the levitation force of the front levitation transport system,
The feed water heater is transported to the lift unit in a floating state on the indoor transport gantry by the indoor levitation transport system, and the feed water heater is transported from the indoor levitation transport system to the front lift unit and the rear lift. While hanging on the unit, the feed water heater is raised to a position higher than the upper surface of the outdoor transfer gantry, and at least a part of the feed water heater is supported by a temporary receiving stand at this raised position , reloaded onto outdoor levitation transportation system for conveying the feed water heater outdoor conveying upper gantry,
The method of unloading the feed water heater, characterized in that conveying the feed water heater to a predetermined position on the outdoor carrying gantry through said opening in floating state by the outdoor levitation transportation system.