CN212563052U - Safe rotary vertical ladder for overhauling nuclear power plant drum net - Google Patents
Safe rotary vertical ladder for overhauling nuclear power plant drum net Download PDFInfo
- Publication number
- CN212563052U CN212563052U CN202020333447.1U CN202020333447U CN212563052U CN 212563052 U CN212563052 U CN 212563052U CN 202020333447 U CN202020333447 U CN 202020333447U CN 212563052 U CN212563052 U CN 212563052U
- Authority
- CN
- China
- Prior art keywords
- ladder
- frame
- vertical ladder
- power plant
- nuclear power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Ladders (AREA)
Abstract
The utility model discloses a nuclear power plant drum net overhauls with safe gyration and erects ladder, including erecting the ladder frame, erect the inboard of ladder frame and arranged two at least rotary platform, per adjacent two along the direction of height in proper order arrange an erecting ladder between the rotary platform, rotary platform's horizontal one side with it supplies the through mouth about the personnel to form between the inboard of ladder frame to erect, erect the upper end of ladder arrange in just through the mouth erect the lower extreme of ladder arrange in rotary platform. The vertical ladder is convenient to build, stable and reliable, high in traffic rate and capable of greatly reducing safety risks.
Description
Technical Field
The utility model relates to a nuclear power plant drum net overhauls technical field, especially relates to a nuclear power plant drum net overhauls with safe gyration vertical ladder.
Background
The nuclear power plant drum net is for filtering the mechanical device of used sea water, and every time the reloading is shut down the overhaul and all need be overhauld it and anticorrosive treatment, and the maintenance that the personnel got into the drum net bottom is overhauld to the drum net needs to be set up and is erected the ladder, and the maintenance that the drum net was overhauld is with erecting the ladder and is belonged to interim vertical ladder equipment. The installation position of the vertical ladder is a seawater taking runner, the vertical ladder is soaked by seawater all the year round during the operation of the unit, and the permanent fixed vertical ladder cannot be installed due to the influence of the corrosive environment of the seawater, the water flow and the like. At present, vertical ladder schemes for overhauling the drum nets of each nuclear power plant are vertical rope ladders or fire-fighting ladder schemes.
The prior art has the following defects:
1) the height difference of the vertical ladder for maintenance is up to 13 meters, other parts of the vertical ladder are suspended in the air and cannot be fixed except a wellhead for installing the vertical ladder, and personnel shake seriously in the process of going up and down the vertical ladder due to small working space and high height difference, so that great safety risk exists;
2) the vertical ladder is only 1m installed on the wellhead2On the left and right sides, large-scale complicated vertical ladder equipment cannot be installed due to size limitation and shortage of overhaul period;
3) the maintenance is erected the ladder and is used personnel many when repairing the drum net throughout the year, and erects ladder installation site light dim, the environment is wet and smooth, and personnel safe in utilization risk is very high, only can supply single use in the use, and personnel are current inefficiency.
Therefore, how to provide a safe and reliable rotary vertical ladder for repairing the drum net is a technical problem which needs to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a nuclear power plant drum net overhauls with safe gyration and erects ladder, should erect the ladder reliable and stable, can greatly reduced safety risk.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a nuclear power plant drum net overhauls with safe gyration and erects ladder, is including erecting ladder frame, erect the inboard of ladder frame and arranged two at least rotary platform along the direction of height in proper order, every adjacent two it erects the ladder to have arranged one between the rotary platform, rotary platform's horizontal one side with it forms the mouth that passes through that supplies personnel about the inboard of ladder frame to erect, erect the upper end of ladder arrange in just through the mouth erect the lower extreme of ladder arrange in rotary platform.
Preferably, the outer periphery of the vertical ladder frame is provided with a protective frame.
Preferably, a protective net is laid on the protective frame, and the protective frame and the protective net surround the periphery of the vertical ladder frame.
Preferably, the number of the protection frames is multiple, and at least one protection frame is a movable protection frame which is movably connected to the vertical ladder frame and located on one side of the revolving platform.
Preferably, the lower end of the movable protective frame is hinged to one side of the rotary platform, the upper end of the movable protective frame is connected to the vertical ladder frame through a suspension cable, and the vertical ladder frame is further provided with a suspension cable retracting device for retracting the suspension cable.
Preferably, the suspension cable winding and unwinding device is a manual winch or an electric winch.
Preferably, guardrails are arranged on the left side and the right side of the movable protective frame.
Preferably, the two ends of the vertical ladder frame are provided with vertical ladder unit connecting pieces used for connecting other vertical ladder frames.
Preferably, the stairway unit connectors comprise fastening bolts.
Preferably, the outer side of the vertical ladder frame is provided with a vertical ladder moving guide wheel.
The working process of the utility model is as follows:
before the operation, confirm the quantity of required perpendicular ladder frame according to the operation height requirement, transfer and assemble into a perpendicular ladder integrated configuration from the installation well head with a plurality of perpendicular ladder frames in proper order, then will erect the ladder frame and be fixed in the well, when the operation begins, the operation personnel get into from the mouth that passes through of the perpendicular ladder frame of the top, and descend in proper order to the target operation position along perpendicular ladder, the revolving platform is as the interim rest point of personnel, improve personnel and reciprocate the security, can develop the operation after arriving the target operation position.
The utility model discloses following beneficial effect has:
1) the vertical ladder adopts a sectional rotary design, so that the fall height is reduced, and the safety risk in the use process is reduced;
2) the use stability is high, and the shaking risk of the original scheme is eliminated;
3) the vertical ladder can be used by multiple persons up and down at the same time, so that the use efficiency of the vertical ladder is improved;
4) the vertical ladders adopt a modular design, can be freely spliced into vertical ladder groups with different heights, and are convenient to install;
5) the retractable design of the movable protective frame saves the manpower and material cost for setting up the working platform and setting up channels for going to other working surfaces;
6) the outside of the vertical ladder frame is provided with the guide wheel, so that the vertical ladder frame is protected from wall friction in the installation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an assembly structure of two vertical ladder frames according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a protective frame of the safety rotary vertical ladder according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a safety rotary vertical ladder with a protective frame and a guardrail according to an embodiment of the present invention.
In fig. 1 to 3:
1-vertical ladder frame, 2-vertical ladder, 3-rotary platform, 4-pass port, 5-movable protective frame, 6-protective net, 7-suspension cable, 8-suspension cable take-up and pay-off device, 9-vertical ladder moving guide wheel, 10-vertical ladder unit connecting piece and 11-guardrail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic view of an assembly structure of two vertical ladder frames according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a protective frame of the safety rotary vertical ladder according to an embodiment of the present invention; fig. 3 is a schematic structural view of a safety rotary vertical ladder with a protective frame and a guardrail according to an embodiment of the present invention.
This scheme provides a nuclear power plant drum network overhauls with safe gyration vertical ladder, personnel's safety when can be used to nuclear power plant drum network maintenance operation or high altitude construction reciprocates. Specifically, this ladder is erected in safe gyration has arranged two at least rotary platform 3 along the direction of height in proper order including erecting ladder frame 1, erecting the inboard of ladder frame 1, has arranged one between every two adjacent rotary platform 3 and has erected ladder 2, forms the mouth of passing through 4 about supplying personnel between horizontal one side of rotary platform 3 and the inboard of erecting ladder frame 1, and the upper end of erecting ladder 2 arranges in the mouth of passing through 4 and the lower extreme of erecting ladder 2 arranges in rotary platform 3.
The safe gyration that this scheme provided erects the use of ladder as follows: before the operation, confirm required vertical ladder frame 1's quantity according to the operation height requirement, transfer and assemble into a vertical ladder integrated configuration with a plurality of vertical ladder frames 1 from the installation well head in proper order, then will erect ladder frame 1 and be fixed in the well, when the operation begins, the operation personnel get into from the mouth 4 that passes through of the vertical ladder frame 1 of the top, and descend to the target operation position along erecting ladder 2 in proper order, rotary platform 3 is as the interim rest point of personnel, improve personnel and reciprocate the security, can develop the operation after arriving the target operation position.
The vertical ladder frame 1 serves as a main body of the safety revolving vertical ladder and supports other parts such as the vertical ladder 2 and the revolving platform 3. Specifically, the shaft ladder frame 1 may be designed in various shapes, such as a rectangular frame, a cylindrical frame, or other longitudinally arranged frame structures that can be installed in sequence along the shaft ladder installation well. Preferably, the main body of the single vertical ladder frame 1 in the present solution is a rectangular frame structure formed by splicing and fixing a plurality of straight pipes or straight bars, etc., as shown in fig. 1.
Erect ladder 2 in the ladder frame 1 and for the segmentation gyration erects the ladder, reduce personnel single through rotary platform 3 and remove the height, the ladder design is erected to the sectional type has reduced the total drop of erecting the ladder, and rotary platform 3 can be as personnel's interim rest point and upper and lower junction, and a plurality of personnel can be from top to bottom simultaneously under the assurance narrow and small space, and the atress that erects the ladder under the guarantee many people in service behavior is firm, improves personnel and reciprocates the security.
As shown in fig. 1, the vertical ladder frame 1 is preferably provided at both ends with vertical ladder unit connectors 10 for connecting other vertical ladder frames. So set up, this scheme erects the ladder and adopts the modularized design, can freely splice a plurality of terraced frames of erecting for safe gyration erects the ladder group according to the degree of depth of operation environment or highly through erecting ladder unit connection spare 10, erects the whole firm stability of ladder group, satisfies different operation environment's demand. The vertical ladder unit connecting piece 10 can be designed into various structural forms, such as a fastener fixed on the vertical ladder frame 1, a bolt connecting piece, an anti-dropping hook and the like. Preferably, the vertical ladder unit connecting piece 10 in the present scheme includes a fastening bolt, and the fastening bolt is used in cooperation with a fastening nut, so that the connection mode is simplified.
Referring to fig. 2 and 3, preferably, a protective frame is disposed on the outer circumference of the vertical ladder frame 1. When the operation personnel reciprocated in erecting ladder frame 1, protective frame can surround all around of erecting ladder frame 1 and form safer protective structure, prevents that the operation personnel from dropping out when falling in accident and erecting ladder frame 1, and wherein, protective frame can design into network structure or railing column structure etc..
Referring to fig. 2 and 3, it is further preferable that a protective net 6 is laid on the protective frame, and the protective frame and the protective net 6 surround the vertical ladder frame 1. The protective net 6 and the protective frame can jointly form a firmer and tighter protective structure, and the safety of the operators is further improved. Specifically, the protective net 6 may be a steel wire net or a nylon net or the like which can play a role of safety protection.
Further preferably, the number of the protection frames is multiple, at least one protection frame is a movable protection frame 5, and the movable protection frame 5 is movably connected to the vertical ladder frame 1 and is positioned at one side of the rotary platform 3. The operation personnel can shelter from the side of erecting ladder frame 1 with activity protective frame 5 as required in order to play the guard action, perhaps open activity protective frame 5 and form the space that supplies the personnel to come in and go out in the side of erecting ladder frame 1, the activity protective frame 5 of opening can regard as new work platform when laying level, thereby extend staff's workspace, activity protective frame 5 can also regard as the bridge floor of being connected of connecting erecting ladder frame 1 and other working faces, be convenient for the staff to leave and erect the ladder and go to the target working face.
It should be noted that the movable protective frame 5 can be movably connected with the vertical ladder frame 1 through various structural forms, for example, one end of the movable protective frame 5 is hinged to the vertical ladder frame 1, and the other end of the movable protective frame is retracted and extended from the vertical ladder frame 1 through a rope device; or, one end of the movable protective frame 5 is hinged to the vertical ladder frame 1, and a supporting cross arm is inserted between the movable protective frame 5 and the vertical ladder frame 1 to fix the relative opening positions of the movable protective frame and the vertical ladder frame; or, hang movable protective frame 5 detachably in the outside of erecting ladder frame 1, when needing to open, take movable protective frame 5 off, reuse support frame fixed relative open position between them, perhaps set up the fixed pipe of horizontal arrangement in erecting ladder frame 1, set up the dead lever at movable protective frame 5's tip, insert the dead lever in the fixed pipe after, can fix relative open position between them. Other devices similar to the above structure can be adopted in the scheme to realize the movable connection between the movable protective frame 5 and the vertical ladder frame 1, and the description is omitted.
In addition, in the same height position department of vertical ladder frame 1, this scheme can only be provided with a movable protective frame 5 in one side of vertical ladder frame 1, also can be provided with a plurality of movable protective frames 5 around vertical ladder frame 1 to realize releasing one side or the multiple side space of vertical ladder frame 1, technical personnel in the art can arrange movable protective frame 5's quantity and distribution position according to own operation needs, and this text is no longer repeated.
Preferably, the lower end of the movable protective frame 5 is hinged to one side of the rotary platform 3, the upper end of the movable protective frame is connected to the vertical ladder frame 1 through a suspension cable 7, and the vertical ladder frame 1 is further provided with a suspension cable retracting device 8 for retracting the suspension cable 7. The suspension cable 7 can be a rope with enough strength such as a nylon rope, a steel wire rope and a carbon fiber rope, and enough supporting tension is guaranteed to be provided for workers. The suspension cable winding and unwinding device 8 may be an electric winch, a manual winch, a ratchet type tensioner or the like, and in consideration of the power-on safety, a manual suspension cable winding and unwinding device with a self-locking function such as a manual winch is preferred in practical application.
Referring to fig. 3, in another preferred embodiment, guardrails 11 are arranged on the left and right sides of the movable protective frame 5. When the movable protective frame 5 is in an open state and serves as a platform or a connecting bridge, when a worker walks over the platform or the connecting bridge, the guardrail 11 can prevent the worker from falling down accidentally, and a safer guarantee is provided.
Preferably, the outside of erecting ladder frame 1 is equipped with and erects ladder removal leading wheel 9, is convenient for erect the daily removal transportation of ladder frame 1, moreover, when erecting ladder frame 1 when installation in narrow and small well, especially when installing in the more shaft of debris such as similar marine environment wall of a well shell, it is more convenient that the ladder is moved to the ladder 9 and is made the installation of erecting ladder, does not receive the wall friction in the protection is erected ladder frame 1 installation.
The utility model discloses following beneficial effect has:
1) the vertical ladder adopts a sectional rotary design, so that the fall height is reduced, and the safety risk in the use process is reduced;
2) the use stability is high, and the shaking risk of the original scheme is eliminated;
3) the vertical ladder can be used by multiple persons up and down at the same time, so that the use efficiency of the vertical ladder is improved;
4) the vertical ladders adopt a modular design, can be freely spliced into vertical ladder groups with different heights, and are convenient to install;
5) the retractable design of the movable protective frame saves the manpower and material cost for setting up the working platform and setting up channels for going to other working surfaces;
6) the outside of the vertical ladder frame is provided with the guide wheel, so that the vertical ladder frame is protected from wall friction in the installation process.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a ladder is erected with safe gyration to nuclear power plant drum net maintenance, a serial communication port, including erecting ladder frame (1), erect inboard of ladder frame (1) and arranged two at least rotary platform (3) in proper order along the direction of height, every adjacent two it erects ladder (2) to have arranged one between rotary platform (3), horizontal one side of rotary platform (3) with it supplies personnel's upper and lower mouth (4) of passing through to erect to form between the inboard of ladder frame (1), erect the upper end of ladder (2) arrange in through mouth (4) just erect the lower extreme of ladder (2) and arrange in rotary platform (3).
2. The safety rotary vertical ladder for overhauling a nuclear power plant drum network according to claim 1, is characterized in that a protective frame is arranged on the periphery of the vertical ladder frame (1).
3. The safety rotary vertical ladder for the nuclear power plant drum network maintenance according to claim 2, characterized in that a protective net (6) is laid on the protective frame, and the protective frame and the protective net (6) are surrounded around the vertical ladder frame (1).
4. The safety rotary vertical ladder for nuclear power plant drum network overhaul according to claim 3, characterized in that the number of the protection frames is multiple, at least one of the protection frames is a movable protection frame (5), and the movable protection frame (5) is movably connected to the vertical ladder frame (1) and is positioned at one side of the rotary platform (3).
5. The safety rotary vertical ladder for the nuclear power plant drum network maintenance according to claim 4, characterized in that the lower end of the movable protective frame (5) is hinged to one side of the rotary platform (3) and the upper end is connected to the vertical ladder frame (1) through a suspension cable (7), and the vertical ladder frame (1) is further provided with a suspension cable retracting device (8) for retracting the suspension cable (7).
6. The safety rotary vertical ladder for overhauling a nuclear power plant drum network according to claim 5, characterized in that the suspension cable winding and unwinding device (8) is a manual winch or an electric winch.
7. The safety rotary vertical ladder for overhauling of the nuclear power plant drum network according to any one of claims 4 to 6, characterized in that guardrails (11) are arranged at the left and right sides of the movable protective frame (5).
8. The safety rotary vertical ladder for nuclear power plant drum network overhaul according to claim 1, characterized in that two ends of the vertical ladder frame (1) are provided with vertical ladder unit connecting pieces (10) for connecting other vertical ladder frames.
9. The safety rotary vertical ladder for nuclear power plant drum network overhaul according to claim 8, characterized in that the vertical ladder unit connection piece (10) comprises a fastening bolt.
10. The safety rotary vertical ladder for overhauling a nuclear power plant drum network according to claim 1, is characterized in that a vertical ladder moving guide wheel (9) is arranged on the outer side of the vertical ladder frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333447.1U CN212563052U (en) | 2020-03-17 | 2020-03-17 | Safe rotary vertical ladder for overhauling nuclear power plant drum net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333447.1U CN212563052U (en) | 2020-03-17 | 2020-03-17 | Safe rotary vertical ladder for overhauling nuclear power plant drum net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212563052U true CN212563052U (en) | 2021-02-19 |
Family
ID=74618468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020333447.1U Active CN212563052U (en) | 2020-03-17 | 2020-03-17 | Safe rotary vertical ladder for overhauling nuclear power plant drum net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212563052U (en) |
-
2020
- 2020-03-17 CN CN202020333447.1U patent/CN212563052U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104074349B (en) | A kind of new-type protection type attachment type raise scaffold | |
| EP2505834A2 (en) | Maintenance platform | |
| CN116136122A (en) | Integrated attached type inclined lifting climbing frame system and use method thereof | |
| CN212563052U (en) | Safe rotary vertical ladder for overhauling nuclear power plant drum net | |
| CN102556890B (en) | Self-lifting mounting platform for steel head material hoister and mounting method for mounting platform | |
| CN201531111U (en) | Movable hanging basket for installing and decorating curtain walls | |
| CN102182324A (en) | Anti-falling safety net | |
| CN209494204U (en) | Suspension type steel ladder | |
| KR101364316B1 (en) | Suspended Scaffolding and Platform for the Boiler | |
| CN212428234U (en) | Drum net is anticorrosive with safe ladder that erects that gyration | |
| CN213596814U (en) | Movable three-dimensional crossing type multipurpose suspension bridge construction platform | |
| CN211286565U (en) | Climbing frame | |
| CN205591115U (en) | Suspension type catwalk veil installing the system | |
| CN115306137A (en) | Operation platform structure for mounting suspended ceiling at bottom of overhead corridor and construction method thereof | |
| CN210561720U (en) | Pier stud maintenance repair operation platform | |
| CN209839329U (en) | Support frame is used in water supply pipe installation | |
| JP2004232366A (en) | Suspended scaffolding | |
| CN112160582A (en) | Assembling platform suitable for construction of spoke type cable membrane system | |
| CN217680774U (en) | Encircling ladder cage for pier construction | |
| CN206634949U (en) | A kind of building tower crane cat ladder and safeguard | |
| CN214059667U (en) | Hoist bridge crane convenient to maintain | |
| CN212002401U (en) | High-altitude horizontal overhanging steel pipe closed hard protection shed | |
| CN219059723U (en) | Wet joint connection module | |
| CN215760356U (en) | Aerial work platform ladder capable of being quickly assembled and disassembled | |
| CN220840160U (en) | Pier rubber is by group dismantles frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |