CN205798062U - Nuclear boiler maintaining item bending tool - Google Patents
Nuclear boiler maintaining item bending tool Download PDFInfo
- Publication number
- CN205798062U CN205798062U CN201620746743.8U CN201620746743U CN205798062U CN 205798062 U CN205798062 U CN 205798062U CN 201620746743 U CN201620746743 U CN 201620746743U CN 205798062 U CN205798062 U CN 205798062U
- Authority
- CN
- China
- Prior art keywords
- maintaining item
- locating piece
- positioning component
- bending tool
- maintaining
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a kind of nuclear boiler maintaining item bending tool, described maintaining item comprises maintaining item body and is positioned at the pars convoluta to be curved of its one end；Described maintaining item bending tool comprises: positioning component, and for promptly maintaining item body and be fixed, this positioning component comprises a position fixing handle being perpendicular to maintaining item body；Crooked assembly, it is flexibly connected with described positioning component, is used for the pars convoluta to be curved of promptly maintaining item one end, and this crooked assembly comprises a crank handle being parallel to maintaining item pars convoluta to be curved.Its advantage is: positioning component and crooked assembly simple in construction, convenient adjustment and control bending angle, can meet the complex working condition of maintaining item bending, the most convenient to operate, it is easy to manufacture.
Description
Technical field
This utility model relates to a kind of metal working technical area, is specifically related to a kind of nuclear boiler maintaining item bending
Frock.
Background technology
Nuclear boiler tube bundle assembly is the cardia of steam generator, mainly carries and is passed by the heat energy of primary Ioops
It is delivered to secondary circuit, and isolates primary Ioops high pressure-temperature and the function of radioprotective medium, play very important effect.
Nuclear boiler tube bundle assembly mainly includes lower case assembly, inner sleeve, pipe support plate, pull bar, U-shaped
Pipe, anti-vibration bar, retaining ring and maintaining item, manufacturing process flow is: after lower case completion, install inner sleeve, pipe support plate
And pull bar, carrying out U-tube poling the most again, tube-tube plate welds appropriate and hydraulic expanding tube, the welding equipment of anti-vibration bar, the welding equipment of protection ring,
Finally carry out the assembling of maintaining item, bend and weld.
During maintaining item assembling, needing the bending area penetrating outermost layer U-tube to specify on position, maintaining item penetrates into outermost
Behind the corresponding position of layer U-tube, one end of maintaining item implementing bending to final molding, bending inside radius is minimum
R11.2mm, bending angle is 122 ° ~ 126 °, installs station as it is shown in figure 1, overbending direction and bending angle are as in figure 2 it is shown, scheme
Middle maintaining item 1 ', one end of maintaining item 1 ' be pars convoluta 11 ', 2 ' to be curved be tube bundle assembly.
The material of above-mentioned maintaining item is SB166 nickel-chromium-ferro alloy 690 (UNS N06690) bar, and bar sectional dimension is
10.67*3.56mm, the yield strength of bar is 275-345MPa, and tensile strength is not less than 620MPa, and elongation after fracture is not less than
25%.After maintaining item penetrates outermost layer U-tube arrival correspondence position, it being carried out bending, bending operating mode is complicated, and is positioned at U-tube
Close region, U-tube wall thickness 1.01mm, belong to fragile parts, it is therefore desirable to provide a kind of maintaining item flector to need full
The following condition of foot: 1, frock easy accessibility can be met, it is simple to operate under complex working condition；2, location must accurately, to avoid sending out
Raw pipe of reprocessing or damage；3, different due to the bending angle of maintaining item, it is therefore necessary to guarantee that bending angle is prone to manual control
System.
Utility model content
The purpose of this utility model is to provide a kind of nuclear boiler maintaining item bending tool, i.e. disclosure satisfy that holding
The complex working condition of bar bending, the most convenient to operate.
In order to achieve the above object, this utility model is achieved through the following technical solutions:
A kind of nuclear boiler maintaining item bending tool, described maintaining item comprises maintaining item body and is positioned at one
The pars convoluta to be curved of end, is characterized in that, comprise:
Positioning component, for promptly maintaining item body and be fixed, this positioning component comprise one be perpendicular to maintaining item this
The position fixing handle of body；
Crooked assembly, it is flexibly connected with described positioning component, for the pars convoluta to be curved of promptly maintaining item one end, this bending
Assembly comprises a crank handle being parallel to maintaining item pars convoluta to be curved.
Above-mentioned nuclear boiler maintaining item bending tool, wherein:
Described positioning component and crooked assembly are flexibly connected by hinge component；
Described position fixing handle, crank handle and hinge component is respectively positioned on the desire curved side of maintaining item.
Above-mentioned nuclear boiler maintaining item bending tool, wherein, described positioning component also comprises:
First locating piece, its one end is connected with one end of described hinge component, described position fixing handle be fixed on this first
On locating piece.
Above-mentioned nuclear boiler maintaining item bending tool, wherein, described crooked assembly also comprises:
Second locating piece, its one end is connected with the other end of described hinge component, described crank handle be fixed on this
On two locating pieces.
Above-mentioned nuclear boiler maintaining item bending tool, wherein:
The first described locating piece and the second locating piece all use and the groove structure of maintaining item form fit.
Above-mentioned nuclear boiler maintaining item bending tool, wherein:
It is matched in clearance between described the first locating piece and maintaining item and between the second locating piece and maintaining item.
This utility model compared with prior art has the advantage that
1, locating piece uses concave structure, and design is played fixation, and during use, this structure is easily installed and dismantles；
2, positioning component and crooked assembly simple in construction, convenient adjustment and control bending angle, can meet maintaining item curved
Bent complex working condition, the most convenient to operate, it is easy to manufacture；
3, hinge arrangement makes this frock be prone to location, meet drawing by the center of rotation of change hinge arrangement simultaneously
Minimum radius bend requirement.
Accompanying drawing explanation
Fig. 1 is that in prior art, maintaining item installs station schematic diagram；
Fig. 2 is overbending direction and the angle schematic diagram of maintaining item in prior art；
Fig. 3 is the front view of the first locating piece of the present utility model；
Fig. 4 is the upward view of the first locating piece of the present utility model；
Fig. 5 is the attachment structure schematic diagram of positioning component of the present utility model and outer hinge；
Fig. 6 is the attachment structure schematic diagram of crooked assembly of the present utility model and inner hinge；
Fig. 7 is use state reference map of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, this utility model is done and explains further
State.
As shown in Fig. 5,6,7, a kind of nuclear boiler maintaining item bending tool, described maintaining item 1 comprises maintaining item
Body and be positioned at the pars convoluta to be curved 11 of its one end；Described nuclear boiler maintaining item bending tool comprises: for promptly
Maintaining item body the positioning component being fixed and be flexibly connected for promptly maintaining item one end with described positioning component
The crooked assembly of pars convoluta 11 to be curved, described positioning component comprises a position fixing handle 22 being perpendicular to maintaining item body, described
Crooked assembly comprises a crank handle 32 being parallel to maintaining item pars convoluta to be curved 11, selects handle arrangement, facilitates bending angle
Control, and this simple in construction is convenient to operate.
Described positioning component is flexibly connected to be prone to tool locating, described location with crooked assembly by hinge component
Handle 22, crank handle 32 and hinge component are respectively positioned on the desire curved side of maintaining item 1, insert tube bank to facilitate in maintaining item 1
Carry out bending operation under conditions of assembly, do not damage product.
Described positioning component also comprises: the first locating piece 21, its one end is connected with one end of described hinge component, described
Position fixing handle 22 be fixed on this first locating piece 21.
Described crooked assembly also comprises: the second locating piece 31, and its one end is connected with the other end of described hinge component, institute
The crank handle 32 stated is fixed on this second locating piece 31.
In the present embodiment, as shown in Figure 5,6, described hinge component comprises the outer hinge being arranged on the first locating piece 21
41, it is arranged on the inner hinge 42 on the second locating piece 31 and connects outer hinge 41 and the joint pin 43 of inner hinge 42, in order to full
The minimum R11.2mm of bending inside radius after foot maintaining item 1 bending, outer hinge 41, the arc section external diameter Φ A of inner hinge 42 are
15mm, and the thick boss D of 1.5mm is set.
Further, it is contemplated that when the assembling of locating piece and follow-up bending, locating piece moves freely, such as Fig. 3,4 institutes
Showing, the first described locating piece 21 and the second locating piece 31 all use and the groove structure of maintaining item 1 form fit, and described the
Matched in clearance it is, simultaneously in order to prevent between a positioning block 21 and maintaining item 1 and between the second locating piece 31 and maintaining item 1
The parts of bundle region are occurred to pollute and affect product quality by frock, and the first locating piece 21 and the second locating piece 31 all use
The material identical with maintaining item 1, in the present embodiment, described maintaining item material is SB166 nickel-chromium-ferro alloy 690 (UNS
N06690) bar, bar sectional dimension is 10.67*3.56mm.
Using method of the present utility model is:
S0, maintaining item 1 being inserted tube bundle assembly, the tune to be curved of maintaining item 1 is exposed to outside tube bundle assembly；
S1, by positioning component and crooked assembly, pars convoluta to be curved 11 with maintaining item body and maintaining item is connected respectively；
S2, one holding position fixing handle 22, another holds crank handle 32, to position fixing handle 22 side rotation bending hands
Handle 32 makes the pars convoluta to be curved 11 of maintaining item be folded into required angle.
Described step S1 specifically comprises:
S11, the groove of the first locating piece 21 and the second locating piece 31 is inserted respectively maintaining item body and maintaining item
Correspondence position on bending section 11；
S12, according to drawing, adjust frock position.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that
The description stated is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, for
Multiple amendment of the present utility model and replacement all will be apparent from.Therefore, protection domain of the present utility model should be by appended
Claim limit.
Claims (6)
1. a nuclear boiler maintaining item bending tool, described maintaining item (1) comprises maintaining item body and is positioned at it
The pars convoluta to be curved (11) of one end, it is characterised in that comprise:
Positioning component, for promptly maintaining item body and be fixed, this positioning component comprises one and is perpendicular to maintaining item body
Position fixing handle (22)；
Crooked assembly, it is flexibly connected with described positioning component, for the pars convoluta to be curved (11) of promptly maintaining item one end, this bending
Assembly comprises a crank handle (32) being parallel to maintaining item pars convoluta to be curved (11).
2. nuclear boiler maintaining item bending tool as claimed in claim 1, it is characterised in that:
Described positioning component and crooked assembly are flexibly connected by hinge component；
Described position fixing handle (22), crank handle (32) and hinge component is respectively positioned on the desire curved side of maintaining item (1).
3. nuclear boiler maintaining item bending tool as claimed in claim 2, it is characterised in that described positioning component is also
Comprise:
First locating piece (21), its one end is connected with one end of described hinge component, and described position fixing handle (22) is fixed on this
On first locating piece (21).
4. nuclear boiler maintaining item bending tool as claimed in claim 3, it is characterised in that described crooked assembly is also
Comprise:
Second locating piece (31), its one end is connected with the other end of described hinge component, and described crank handle (32) is fixed on
On this second locating piece (31).
5. nuclear boiler maintaining item bending tool as claimed in claim 4, it is characterised in that:
Described the first locating piece (21) and the second locating piece (31) all use the groove structure with maintaining item (1) form fit.
6. nuclear boiler maintaining item bending tool as claimed in claim 4, it is characterised in that:
It is between described the first locating piece (21) and maintaining item (1) and between the second locating piece (31) and maintaining item (1)
Matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620746743.8U CN205798062U (en) | 2016-07-15 | 2016-07-15 | Nuclear boiler maintaining item bending tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620746743.8U CN205798062U (en) | 2016-07-15 | 2016-07-15 | Nuclear boiler maintaining item bending tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205798062U true CN205798062U (en) | 2016-12-14 |
Family
ID=57511596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620746743.8U Active CN205798062U (en) | 2016-07-15 | 2016-07-15 | Nuclear boiler maintaining item bending tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205798062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001209A (en) * | 2016-07-15 | 2016-10-12 | 上海电气核电设备有限公司 | Nuclear steam generator keeping bar bending tool and application method thereof |
-
2016
- 2016-07-15 CN CN201620746743.8U patent/CN205798062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001209A (en) * | 2016-07-15 | 2016-10-12 | 上海电气核电设备有限公司 | Nuclear steam generator keeping bar bending tool and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107314168B (en) | Pipe fitting connecting structure and stainless steel pipe fitting connecting structure | |
| JPH0321802B2 (en) | ||
| CN103437834B (en) | Stress-free mounting method of flange at inlet steam pipe section of turbine | |
| CN204254114U (en) | A kind of three-limb tube | |
| CN205798062U (en) | Nuclear boiler maintaining item bending tool | |
| CN210088255U (en) | Metal corrugated pipe and flange connecting structure | |
| CN208688771U (en) | A kind of wind tunnel experiment part and its wind tunnel system with interchangeability | |
| CN110345464A (en) | A kind of nuclear power station steam generator flexible tubesheet structure | |
| CN201795230U (en) | Prefabricated steel bushing steel direct-buried elbow pipe applicable to steam pipeline | |
| CN106001209A (en) | Nuclear steam generator keeping bar bending tool and application method thereof | |
| CN108387358A (en) | A kind of wind tunnel experiment part and its wind tunnel system with interchangeability | |
| CN102785361B (en) | Heating clamp for steel-plastic composite pipe | |
| WO2020119371A1 (en) | Liquid storage device | |
| CN104848714A (en) | Frame type shell-and-tube heat exchanger | |
| CN206609183U (en) | Flow collection pipe component and heat exchanger | |
| CN204987955U (en) | Titanium pipe heat exchanger structures | |
| CN205350675U (en) | Heat sink condenser tube's connection structure | |
| CN204924003U (en) | A antivibration supporting component for U type tubular heat exchanger bend loss | |
| JP2014109397A (en) | Heat exchanger | |
| CN209407793U (en) | A kind of tube sheet equipment positioning device | |
| CN203948854U (en) | A kind of expansion joint load-carrying construction | |
| CN202685317U (en) | Heating clamp of steel-plastic complex pipe | |
| CN205781650U (en) | A kind of thermal expansion of pipeline compensation device | |
| CN206958478U (en) | A kind of pipeline compensator | |
| CN206943679U (en) | A kind of low flow resistance bend pipe pressure balance expansion joint for changing flow direction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |