CN213294415U - A transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism - Google Patents
A transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism Download PDFInfo
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- CN213294415U CN213294415U CN202022225834.6U CN202022225834U CN213294415U CN 213294415 U CN213294415 U CN 213294415U CN 202022225834 U CN202022225834 U CN 202022225834U CN 213294415 U CN213294415 U CN 213294415U
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- lifting
- actuating mechanism
- main steam
- nuclear power
- isolation valve
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Abstract
The utility model relates to the technical field of nuclear power overhaul, in particular to a transfer lifting appliance for an AP1000 nuclear power main steam isolation valve actuating mechanism, which comprises a lifting frame and a bearing frame; the hanging bracket comprises an I-shaped beam which comprises a first cross rod, a vertical rod and a second cross rod; the first cross rod is provided with a first counter weight block mounting groove, the opposite side of the second cross rod, which is connected with the vertical rod, is provided with an auxiliary plate, and the auxiliary plate is provided with a second counter weight block mounting groove; the lifting hole arrangement frame is arranged at the top of the vertical rod and is provided with a central lifting hole and side lifting holes; the lifting shaft is detachably connected with the central lifting hole or the side lifting hole; the counterweight block is detachably connected with the first counterweight block mounting groove or the second counterweight block mounting groove; and (4) hanging the chain. The utility model provides a transport hoist can realize transporting the whole two kinds of different transportation objects of solitary bracket or actuating mechanism and bracket through setting up the lewis hole of two kinds of differences, has ensured developing smoothly of main steam isolation valve disintegration maintenance work.
Description
Technical Field
The utility model relates to a nuclear power overhauls technical field, specifically is a transport hoist that is used for AP1000 nuclear power main steam isolating valve actuating mechanism.
Background
The main steam isolation valve belongs to nuclear power nuclear grade key sensitive equipment and is used for isolating a steam generator under the conditions of low steam pipeline pressure, sudden pressure drop or low cold section temperature in a main steam loop. The main steam isolation valve is used as a key part on the two-loop gas supply pipeline and plays a significant role in the normal operation and accident handling processes of the nuclear power plant.
The AP1000 nuclear power unit has two main steam isolation valves, the valve type is a 38-inch gas-liquid linkage wedge-shaped double-gate valve, and an executing mechanism needs to be disassembled and overhauled during overhaul. Because the valve actuating mechanism is large in size and complex in structure, the space of a room where the valve is located is limited, and the valve is inconvenient to disassemble and overhaul on site, the valve actuating mechanism needs to be transferred to a specified overhaul area to disassemble and overhaul by means of transportation such as hoisting and transportation.
Currently, there is no suitable transfer hoist to hoist the main steam isolation valve actuator and its carriage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that prior art exists, provided a transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism for accomplish the whole hoist and mount of actuating mechanism and bracket in the on-the-spot main steam isolating valve actuating mechanism transportation, the smooth development of guarantee main steam isolating valve disintegration maintenance work.
The utility model provides a technical scheme that its technical problem adopted is: a transfer lifting appliance for an AP1000 nuclear power main steam isolation valve actuating mechanism comprises a lifting frame and a bearing frame;
the hanger comprises
The I-shaped beam comprises a first cross rod, a vertical rod and a second cross rod; the first cross rod is provided with a first counter weight block mounting groove, the opposite side of the second cross rod, which is connected with the vertical rod, is provided with an auxiliary plate, and the auxiliary plate is provided with a second counter weight block mounting groove;
the lifting hole arrangement frame is arranged at the top of the vertical rod and is provided with a central lifting hole and side lifting holes;
the lifting shaft is detachably connected with the central lifting hole or the side lifting hole;
the counterweight block is detachably connected with the first counterweight block mounting groove or the second counterweight block mounting groove;
the hanging chains are arranged at the bottoms of two axial ends of the transverse rod and comprise shackles;
the bearing frame is used for mounting the actuating mechanism and the bracket and is provided with a hanging hole detachably connected with the shackle.
The transfer lifting appliance can transfer two different transfer objects of an independent bracket or an execution mechanism and the bracket as a whole by arranging two different lifting holes, and the smooth development of the disassembly and maintenance work of the main steam isolation valve is ensured; in the actual use process, the installation position and the installation number of the balancing weights can be adjusted to ensure that the lifting appliance is stable and does not incline in the transportation process, so that the lifting appliance is safe and reliable to use; and the dismounting and the maintenance of the transfer lifting appliance are simple and convenient.
Preferably, the carrier comprises
A base plate;
the stand is arranged at the top of the base plate, and a concave clamping groove and the lifting hole are formed in the top end of the stand.
Preferably, the upright column comprises
The first plate body is parallel to the mounting direction of the bracket, and the top end of the first plate body is provided with the concave clamping groove;
the second plate body, with the first plate body dorsad the support side sets up perpendicularly and its top is located spill draw-in groove below, the lewis hole is located the axial top of second plate body.
Preferably, a front upright column group and a rear upright column group are arranged on the base plate along the mounting direction of the bracket, and each upright column group comprises two upright columns which are oppositely arranged.
Optionally, the bracket is provided with a suspension trunnion assembled and connected with the concave clamping groove of one vertical column group, and an overturning trunnion assembled and connected with the concave clamping groove of the other vertical column group.
Preferably, the lifting hole setting frame comprises two support plates which are arranged in parallel.
Preferably, a reinforcing rib is arranged between the supporting plate and the vertical rod.
Preferably, reinforcing bodies are arranged between the first cross rod and the vertical rods and between the second cross rod and the vertical rods.
Preferably, at least two counterweight mounting grooves are arranged.
Preferably, at least two counterweight mounting grooves are formed in the second counterweight mounting groove.
Advantageous effects
The transfer lifting appliance can transfer two different transfer objects of an independent bracket or an execution mechanism and the bracket as a whole by arranging two different lifting holes, and the smooth development of the disassembly and maintenance work of the main steam isolation valve is ensured; in the actual use process, the installation position and the installation number of the balancing weights can be adjusted to ensure that the lifting appliance is stable and does not incline in the transportation process, so that the lifting appliance is safe and reliable to use; and the dismounting and the maintenance of the transfer lifting appliance are simple and convenient.
Drawings
FIG. 1 is a schematic view of an actuator bracket and carriage according to the present application;
FIG. 2 is a schematic view of a carrier of the present application;
FIG. 3 is a schematic view of a hanger of the present application;
fig. 4 (a), 4 (b) are schematic structural diagrams of two use states of the transfer spreader of the present application.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, a transfer lifting appliance for an AP1000 nuclear power main steam isolation valve actuating mechanism comprises a lifting frame and a bearing frame. The hanger comprises an I-beam 1, a lifting hole arrangement frame 2, a lifting shaft 3, a balancing weight 4 and a lifting chain 5.
The I-beam 1 is a bearing base body of the whole hanging bracket and comprises a first cross rod, a vertical rod and a second cross rod, wherein the first cross rod is provided with a first balancing weight mounting groove 11, the opposite side of the second cross rod, which is connected with the vertical rod, is provided with an auxiliary plate 12, and the auxiliary plate 12 is provided with a second balancing weight mounting groove 13. Reinforcing bodies 14 are arranged between the first cross rod and the vertical rods and between the second cross rod and the vertical rods, so that the stress strength of the whole I-shaped beam 1 is improved. First 11 of balancing weight mounting grooves set up two at least, two 13 of balancing weight mounting grooves set up two at least, and this application can be adjusted balancing weight 4's installation quantity and mounted position according to actual conditions, has improved the use flexibility ratio of hoist is transported in this application.
The hanging hole setting frame 2 is arranged at the top of the vertical rod and is provided with a central hanging hole 21 and a side hanging hole 22. The central lifting hole 21 is arranged at the central position of the I-beam 1, the side lifting hole 22 is arranged at the position, close to the outer side, of the I-beam 1, and the positions of the lifting holes are respectively designed according to the gravity center positions of the carrier when the carrier is not provided with the actuating mechanism 8 for lifting and the carrier is provided with the actuating mechanism 8 for lifting integrally. The lifting hole setting frame 2 comprises two parallel supporting plates, and therefore lifting holes are convenient to set. The backup pad with be equipped with strengthening rib 23 between the montant, improved the support intensity of whole gallows.
The lifting shaft 3 is detachably connected with the central lifting hole 21 or the side lifting hole 22. The lifting shaft 3 is matched with the lifting hole through a shaft hole and is used for connecting the I-beam 1 and lifting equipment.
The balancing weight 4 is detachably connected with the first balancing weight mounting groove 11 or the second balancing weight mounting groove 13. In order to ensure that the device is stable and does not incline when the lifting tool is transported for lifting, the balancing weight is arranged in the I-beam balancing weight mounting groove I11 or the balancing weight mounting groove II 13, and the number and the position of the balancing weight can be adjusted according to actual conditions during lifting.
The sling chain 5 is located horizontal pole axial both ends bottom and two axial both ends bottoms of horizontal pole for I-beam 1 with bear being connected of frame, sling chain 5 includes shackle 51, bear the frame be used for installing actuating mechanism 8 and bracket 7 and be equipped with shackle 51 dismantles the lewis hole 64 that the formula is connected, shackle 51's setting is convenient for sling chain 5 and bears the lewis hole 64 of frame and install fast and dismantle.
As shown in fig. 4 (a), when the transfer spreader is not equipped with the actuator 8, the center of gravity is located at the center of the spreader, and the lifting shaft 3 is assembled and connected to the central lifting hole 21. Meanwhile, in order to ensure that the device is stable and does not incline when being lifted, the balancing weight 4 is arranged in the balancing weight mounting groove I11 on the right side. As shown in fig. 4 (b), when the actuator 8 is installed in the transfer spreader, the overall center of gravity is located on the left side of the center of the spreader, and the lifting shaft 3 is assembled with the side lifting hole 22. Meanwhile, in order to ensure that the device is stable and does not incline when being lifted, the balancing weight 4 is arranged in the balancing weight mounting groove II 13 on the left side.
Specifically, the steps of lifting the bracket 7 by the loading frame are as follows: first, the counterweight 4 is installed in the counterweight installation groove one 11 on the right side of the hanger, as shown in fig. 4 (a). The lifting shaft 3 is mounted in the central lifting hole 21, the transfer hanger is moved to a position right above the carriage (at this time, the bracket 7 is already assembled with the carriage) using the lifting device, and the hanger is lowered so that the shackle 51 is positioned at the same height as the lifting hole 64. The carriage is oriented so that its four holes 64 in the uprights 62 are flush with the four chains 5 of the cradle, respectively. The shackle 51 is loosened, the sling chain 5 is connected with the hanging hole 64, and the shackle 51 is locked. The lifting frame is lifted slowly through the lifting equipment, whether the lifting frame inclines or not is observed, if the lifting frame inclines, lifting is stopped, and the number of the balancing weights is adjusted according to the inclination direction until the lifting frame does not incline. Finally, the cradle is lifted vertically and moved horizontally, completing the transfer of the carriage 7, for example, the carriage 7 can be transferred next to the actuator 8. The shackle 51 is then released from the lifting hole 64, the bracket 7 is removed from the carrier by means of the lifting beam, the bracket 7 is then connected to the actuator 8 by means of the lifting beam, and finally the bracket 7 with the actuator 8 is fitted into the female bayonet 63 of the carrier by means of the lifting beam.
The steps of hoisting the bracket 7 and the actuating mechanism 8 by the bearing frame are as follows: first, the counterweight 4 is mounted in the counterweight mounting groove two 13 on the left side of the hanging beam, as shown in fig. 4 (b). The lifting shaft 3 is installed in the side lifting hole 22, the transfer hanger is moved to a position right above the carriage (at this time, the bracket 7 on which the actuator 8 is installed is assembled with the carriage) using the lifting device, and the transfer hanger is lowered so that the shackle 51 is positioned at the same height as the lifting hole 64. The carriage is oriented so that its four holes 64 in the uprights 62 are flush with the four chains 5 of the cradle, respectively. The shackle 51 is loosened, the sling chain 5 is connected with the hanging hole 64, and the shackle 51 is locked. And observing whether the hanging bracket inclines or not, if so, stopping lifting, and adjusting the number of the balancing weights according to the inclination direction until the hanging bracket does not incline. And finally, vertically lifting and horizontally moving the hanging bracket to finish the transfer of the actuating mechanism 8 and the bracket 7.
In addition, the bearing frame comprises a base plate 61 and a column 62, wherein the column 62 is arranged at the top of the base plate 61, and the top end of the column is provided with a concave clamping groove 63 and the hanging hole 64. The stand 62 include with the parallel and top of installation direction of bracket 7 is equipped with the first plate body of spill draw-in groove 63, with the first plate body dorsad the perpendicular setting of bracket 7 side and its top are located the second plate body of spill draw-in groove 63 below, lewis hole 64 is located the axial top of second plate body. One the base plate 61 is provided with a front column group and a rear column group along the installation direction of the bracket 7, and each column group comprises two columns 62 which are oppositely arranged. The bracket 7 is provided with a suspension trunnion 71 assembled and connected with the concave slot 63 of one column group, and an overturning trunnion 72 assembled and connected with the concave slot 63 of the other column group.
After the bracket 7 and the actuator 8 are installed, the actuator 8 and the bracket 7 are slowly translated to the position right above the carrier by the hanging beam, then the hanging beam is lowered, so that the overturning trunnion 72 on the bracket 7 is inserted into the concave slot 63 of the rear upright post 62 of the carrier, then the hanging beam is continuously slowly translated and lowered, the actuator is slowly and stably inclined until the hanging trunnion 71 of the bracket 7 is inserted into the concave slot 63 of the front upright post 62 of the carrier, and the actuator is in a horizontal state.
The transfer lifting appliance can transfer two different transfer objects of an independent bracket or an execution mechanism and the bracket as a whole by arranging two different lifting holes, and the smooth development of the disassembly and maintenance work of the main steam isolation valve is ensured; and the installation position and the installation quantity of accessible regulation balancing weight can ensure that the hoist steadily does not take place the slope in the transportation for the hoist uses safe and reliable. In addition, the transferring lifting appliance is also suitable for transferring operation of a main steam isolation valve and a main water supply isolation valve similar to other nuclear power systems.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (10)
1. A transfer lifting appliance for an AP1000 nuclear power main steam isolation valve actuating mechanism is characterized by comprising a lifting frame and a bearing frame;
the hanger comprises
The I-beam (1) comprises a first cross rod, a vertical rod and a second cross rod; the first cross rod is provided with a first counter weight block mounting groove (11), the opposite side of the second cross rod, which is connected with the vertical rod, is provided with an auxiliary plate (12), and the auxiliary plate (12) is provided with a second counter weight block mounting groove (13);
the lifting hole setting frame (2) is arranged at the top of the vertical rod and is provided with a central lifting hole (21) and side lifting holes (22);
the lifting shaft (3) is detachably connected with the central lifting hole (21) or the side lifting hole (22);
the counterweight block (4) is detachably connected with the first counterweight block mounting groove (11) or the second counterweight block mounting groove (13);
the hanging chains (5) are arranged at the bottoms of two axial ends of the transverse rod and comprise shackles (51);
the bearing frame is used for mounting an actuating mechanism (8) and a bracket (7) and is provided with a hanging hole (64) detachably connected with the shackle (51).
2. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism according to claim 1, wherein the bearing frame comprises
A base plate (61);
and the upright post (62) is arranged at the top of the base plate (61), and the top end of the upright post is provided with a concave clamping groove (63) and the lifting hole (64).
3. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism according to claim 2, characterized in that the upright column (62) comprises
The first plate body is parallel to the mounting direction of the bracket (7), and the top end of the first plate body is provided with the concave clamping groove (63);
the second plate body is arranged opposite to the bracket (7) side and perpendicular to the first plate body, the top end of the second plate body is located below the concave clamping groove (63), and the lifting hole (64) is formed in the axial top end of the second plate body.
4. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism according to claim 3, wherein a base plate (61) is provided with a front column set and a rear column set along the mounting direction of a bracket (7), and each column set comprises two columns (62) which are oppositely arranged.
5. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism is characterized in that the bracket (7) is provided with a lifting trunnion (71) which is assembled and connected with a concave clamping groove (63) of one vertical column group and an overturning trunnion (72) which is assembled and connected with a concave clamping groove (63) of the other vertical column group.
6. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism is characterized in that the lifting hole setting frame (2) comprises two parallel supporting plates.
7. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism according to claim 6, wherein a reinforcing rib (23) is arranged between the supporting plate and the vertical rod.
8. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism is characterized in that reinforcing bodies (14) are arranged between the first cross rod and the vertical rods and between the second cross rod and the vertical rods.
9. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism is characterized in that at least two first counter weight block mounting grooves (11) are formed.
10. The transfer lifting appliance for the AP1000 nuclear power main steam isolation valve actuating mechanism according to claim 1, wherein at least two balancing weight mounting grooves II (13) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022225834.6U CN213294415U (en) | 2020-10-09 | 2020-10-09 | A transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022225834.6U CN213294415U (en) | 2020-10-09 | 2020-10-09 | A transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213294415U true CN213294415U (en) | 2021-05-28 |
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ID=76012244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022225834.6U Active CN213294415U (en) | 2020-10-09 | 2020-10-09 | A transport hoist for AP1000 nuclear power main steam isolating valve actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213294415U (en) |
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2020
- 2020-10-09 CN CN202022225834.6U patent/CN213294415U/en active Active
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