CN104959441B - Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method - Google Patents
Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method Download PDFInfo
- Publication number
- CN104959441B CN104959441B CN201510383425.XA CN201510383425A CN104959441B CN 104959441 B CN104959441 B CN 104959441B CN 201510383425 A CN201510383425 A CN 201510383425A CN 104959441 B CN104959441 B CN 104959441B
- Authority
- CN
- China
- Prior art keywords
- stretching
- rotating mechanism
- kingbolt
- draw unit
- nut rotating
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses a kind of reactor pressure vessel kingbolt combined type integrally stretching machine and its application method, this stretching-machine includes measurement switch board and hydraulic station, also include more than one draw unit, the draw unit includes hydraulic cylinder, mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device, mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device pass through cable connection with measurement switch board, hydraulic station is connected with hydraulic cylinder by flexible pipe, and hydraulic cylinder multistage is boosted in the application method that the present invention is provided.The stretching-machine that the present invention is provided is lifted, repair and maintenance is convenient, operation strategies are wide, and the application method that the present invention is provided can realize that the multiple kingbolt amount of tension being stretched meet the requirement of uniformity and uniformity.
Description
Technical field
The present invention relates to bolt stretching machine apparatus field, more particularly to a kind of reactor pressure vessel kingbolt combined type
Integrally stretching machine and its application method.
Background technology
In technical field of nuclear power, reactor pressure vessel for load nuclear fuel container, nuclear fuel high temperature, high pressure with
And worked in the state of high radiation, any trickle leakage part can bring serious damage to surrounding environment and personnel, press simultaneously
The pretightning force of multiple kingbolts requires uniformity on force container, and controls in certain scope, and is pulled by using by hand
Hand, which carrys out quiet kingbolt, can not reach the consistent purpose of pretightning force.So, reactor pressure vessel kingbolt stretching-machine is each
The individual nuclear power station special large scale equipment indispensable with reactor, it is real for the quick and precisely stretching of reactor pressure vessel kingbolt
Existing pressure vessel closes reliable sealing during lid, quick and precisely dismounting when uncapping.Domestic and international kingbolt stretching-machine includes monomer-type
Stretching-machine and monoblock type stretching-machine two types.
Monomer-type stretching-machine can only be once stretched to two kingbolts, it is necessary to stage by stage repeatedly to complete in the prior art
Portion's bolt is stretched one by one, inefficiency, undesirable in terms of the accuracy and uniformity of stretching.Monoblock type stretching-machine can
By all kingbolts simultaneously, homogeneity stretched, have the advantages that it is efficient, stable, while the accuracy and uniformity of stretching are non-
Chang Hao, but overall structure is huge, and transhipment can only be carried out integrally with installing, and be safeguarded with using specialization by force；Due to three generations's nuclear power
AP1000 heap-type uses integrated top cover, and integrally stretching machine is unable to integral hoisting to pressure vessel, therefore can not use entirety
Stretching-machine.
The content of the invention
The integrated top cover used such as three generations's nuclear power AP1000 types pressure vessel, entirety are directed in the prior art for above-mentioned
Stretching-machine is unable to integral hoisting to pressure vessel, therefore can not use integrally stretching machine, it is impossible to this model or other have
Equal technological requirement kingbolt carry out simultaneously, homogeneity is the problem of stretch, the invention provides a kind of main spiral shell of reactor pressure vessel
Bolt combined type integrally stretching machine and its application method.
In view of the above-mentioned problems, the reactor pressure vessel kingbolt combined type integrally stretching machine that provides of the present invention pass through it is following
Technical essential achieves the goal：Reactor pressure vessel kingbolt combined type integrally stretching machine, including measurement switch board and with survey
The connected hydraulic station of switch board, in addition to more than one draw unit are measured, the draw unit includes hydraulic cylinder, mother nut and revolved
Rotation mechanism, stretching nut rotating mechanism and stretching measuring device, the stretching nut rotating mechanism are fixedly connected with hydraulic cylinder,
The pressure medium input of hydraulic cylinder is connected with hydraulic station, and mother nut rotating mechanism, stretching nut rotating mechanism and stretching are measured
Amount device is electrically connected with measurement switch board, and mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device
With measurement switch board by cable connection, hydraulic station is connected with hydraulic cylinder by flexible pipe.
Specifically, in the present invention, the measurement switch board of setting completes the collection of kingbolt stretching pressure data, hydraulic station control
The function such as system, amount of tension data acquisition, rotation control, the man-machine interaction for stretching nut and mother nut, above stretching nut is drawing
The attaching nut with kingbolt on nut rotating mechanism is stretched, mother nut is the nut on kingbolt；Hydraulic station carries for whole device
For stable pressure source；Each draw unit completes the stretching to correspondence kingbolt and stretching measurement, braking correspondence mother nut
Rotation with stretching nut；Each draw unit collective effect completes the integrally stretching of reactor pressure vessel kingbolt.More than
In structure, mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device are connected with measurement switch board by cable
Connect, the connected mode that hydraulic station is connected with hydraulic cylinder by flexible pipe, there is no pressure medium conduit and electricity between each draw unit
Gas is connected, relatively independent, in installation and debugging process, can be according to the volume and kingbolt arrangement form of pressure vessel, individually
Each draw unit is lifted, installed and used, i.e., the present invention can easily be installed according to specific application occasion, debug and
Use.The stretching-machine that the present invention is provided can be suitably used for various heap-type（Including AP1000）, meet two generations and three generations's nuclear power station and
Engineering project requirement, realizes reactor pressure vessel kingbolt integrally stretching.As those skilled in the art, the present invention also can use
Bolt tension on other field or equipment.
It is used as the further technical scheme of reactor pressure vessel kingbolt combined type integrally stretching machine：
For ease of that can form easy-to-mount type of attachment between measurement switch board and draw unit, the cable is at least
Aviation plug is provided with one end, the flexible pipe is provided with snap joint at least one end.
As it is a kind of stretching nut rotating mechanism structure type and thereon weak element not by the structure side of hydraulic tensioning power
Formula, the stretching nut rotating mechanism includes stretching nut motor and stretching nut, the hydraulic cylinder and stretching nut whirler
The tie point of structure is located on stretching nut.It is that can be achieved using cylinder body and the relatively turnable hydraulic cylinder of piston in above structure.
Modular construction can be formed for ease of the stretching-machine that provides of the present invention, in addition to more than one and quantity are less than stretching
The stretching platform of element number, the stretching platform is rigid member, and at least one stretching is respectively provided with each stretching platform
Unit.Draw unit one stretching assembly of formation of one stretching platform combination of the above thereon, so, a stretching assembly is completed
One or more kingbolt stretchings, multiple stretching assemblies, which are combined, completes integrally stretching, and the stretching platform of arrangement above can
Different structure form and draw unit arrangement are set according to specific application occasion, so can not only realize that modularization is uniformly drawn
Stretch, while being conducive to improving the present invention in the efficiency of loading and unloading on pressure vessel.
For ease of obtaining higher pressure and pressure more stable high-pressure medium with driving hydraulic cylinder, on each stretching platform
A pressurized cylinder is provided with, the cylinder pressure medium input of the draw unit on each stretching platform is both connected to pressurized cylinder
Output end on, the input of pressurized cylinder is connected with hydraulic station.
For the benefit of the present invention uses high-pressure medium as the security of Driven by Hydraulic Cylinder, in addition to for flexible pipe security protection
Safety device, the safety device be safety guard, pressure gauge, relief valve, the pressure sensing being connected with hydraulic station
One or more in device.
Meanwhile, present invention also offers a kind of application method of stretching-machine, the stretching-machine is described in above-mentioned any one
Reactor pressure vessel kingbolt combined type integrally stretching machine, the application method includes the following steps that order is carried out：
1）, draw unit is hoisted to one by one at the top of pressure vessel using hanging device, complete mother nut rotating mechanism with
The connection of kingbolt upper cap nut and the connection of stretching nut rotating mechanism and screw thread on kingbolt；
2）, completed using cable each draw unit and measurement switch board electrical connection and using flexible pipe complete hydraulic station with
The pressure medium conduit connection of each draw unit；
3）, amount of tension parameter is set on measurement switch board, stretching nut rotating mechanism completes single according to amount of tension parameter
Secondary stretching, and the amount of tension of single stretching is not more than total amount of tension of requirement；
4）, repeat step 3）, until the elongation for the kingbolt that is stretched reaches total amount of tension.
Above step 3）In, it is intended to a kind of open stretching mode step by step, it can not only ensure single master using stretching step by step
Stretching pressure on bolt gently stablizes increase, while can ensure that multiple kingbolts meet amount of tension uniformity and uniformity will
Ask, as a kind of concrete scheme, may be set to point three phases and carry out, be i.e. respectively final pressure（The corresponding pressure of total amount of tension
Power）1/3rd, 2/3rds, final pressure, can also as needed user set；A staged pressure is often completed to keep
Time be system judge automatically after pressure stability 1 minute, can also user setting, it is ensured that stretching pressure stability reach setting value.
It is used as the further technical scheme of the application method of stretching-machine：
For the uniformity of each kingbolt extended length in further balanced multiple kingbolts simultaneously drawing process, beneficial to master
The sealing effectiveness for the bolting face that bolt is used and the uniformity of each kingbolt stress, in step 3）With step 4）Between also
Including set-up procedure, the set-up procedure is：After draw unit has performed the stretching numerical quantity of input, drawn by finely tuning each
The actual pressure of hydraulic cylinder in unit is stretched, the actual amount of tension of kingbolt corresponding to each draw unit is finely adjusted.With upper liquid
The fine setting of cylinder pressure actual pressure can be realized in the form of to hydraulic cylinder pressure relief.
The invention has the advantages that：
1st, it is main in the stretching-machine the invention provides a kind of reactor pressure vessel kingbolt combined type integrally stretching machine
Nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device pass through cable connection, hydraulic station with measurement switch board
There is no pressure medium conduit and electrical connection, phase between the connected mode being connected with hydraulic cylinder by flexible pipe, each draw unit
To independence, in installation and debugging process, individually each can be stretched according to the volume and kingbolt arrangement form of pressure vessel
Unit is lifted, installed and used, i.e., the present invention can easily be installed, debug and used according to specific application occasion.This hair
The stretching-machine of bright offer can be suitably used for various heap-type（Including AP1000）, meeting for two generations will with three generations's nuclear power station and engineering project
Ask, realize reactor pressure vessel kingbolt integrally stretching.As those skilled in the art, present invention may also apply to other field
Or the bolt tension in equipment.
2nd, the application method for more than one stretching-machines that the present invention is provided, in the step 3 of this method）In, it is open a kind of by
Level stretching mode, can not only ensure that stretching pressure on single kingbolt gently stablizes increase, while can using stretching step by step
Ensure that multiple kingbolts meet the requirement of amount of tension uniformity and uniformity.
Brief description of the drawings
Fig. 1 is one specific embodiment of reactor pressure vessel kingbolt combined type integrally stretching machine of the present invention
Structural representation；
Fig. 2 is the system composition figure of the reactor pressure vessel kingbolt combined type integrally stretching machine described in embodiment 2.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention structure be not limited only to it is following
Embodiment.
Embodiment 1：
As shown in figure 1, reactor pressure vessel kingbolt combined type integrally stretching machine, including measurement switch board and with measurement
The connected hydraulic station of switch board, in addition to more than one draw unit, the draw unit include hydraulic cylinder, mother nut and rotated
Mechanism, stretching nut rotating mechanism and stretching measuring device, the stretching nut rotating mechanism are fixedly connected with hydraulic cylinder, liquid
The pressure medium input of cylinder pressure is connected with hydraulic station, mother nut rotating mechanism, stretching nut rotating mechanism and stretching measurement
Device with measurement switch board electrically connect, and mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device and
Switch board is measured by cable connection, hydraulic station is connected with hydraulic cylinder by flexible pipe.
In the present embodiment, the measurement switch board of setting completes the collection of kingbolt stretching pressure data, hydraulic pressure stand control, stretching
The functions such as rotation control, the man-machine interaction of data acquisition, stretching nut and mother nut are measured, above stretching nut is stretching nut rotation
With the attaching nut of kingbolt on rotation mechanism, mother nut is the nut on kingbolt；Hydraulic station provides stabilization for whole device
Pressure source；Each draw unit completes the stretching to correspondence kingbolt and stretching measurement, braking correspondence mother nut and stretching spiral shell
Female rotation；Each draw unit collective effect completes the integrally stretching of reactor pressure vessel kingbolt.It is main in above structure
Nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device pass through cable connection, hydraulic station with measurement switch board
There is no pressure medium conduit and electrical connection, phase between the connected mode being connected with hydraulic cylinder by flexible pipe, each draw unit
To independence, in installation and debugging process, individually each can be stretched according to the volume and kingbolt arrangement form of pressure vessel
Unit is lifted, installed and used, i.e., the present invention can easily be installed, debug and used according to specific application occasion.This hair
The stretching-machine of bright offer can be suitably used for various heap-type（Including AP1000）, meeting for two generations will with three generations's nuclear power station and engineering project
Ask, realize reactor pressure vessel kingbolt integrally stretching.As those skilled in the art, present invention may also apply to other field
Or the bolt tension in equipment.
In the present embodiment, the torque of mother nut rotating mechanism and stretching nut rotating mechanism is all from motor, is used as one kind
It is easy to control the structure type of correspondence nut rotating cycle, above motor is servomotor.
Embodiment 2：
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 1：Hold as reactor pressure
The further technical scheme of device kingbolt combined type integrally stretching machine：
For ease of that can form easy-to-mount type of attachment between measurement switch board and draw unit, the cable is at least
Aviation plug is provided with one end, the flexible pipe is provided with snap joint at least one end.
As it is a kind of stretching nut rotating mechanism structure type and thereon weak element not by the structure side of hydraulic tensioning power
Formula, the stretching nut rotating mechanism includes stretching nut motor and stretching nut, the hydraulic cylinder and stretching nut whirler
The tie point of structure is located on stretching nut.It is that can be achieved using cylinder body and the relatively turnable hydraulic cylinder of piston in above structure.
Modular construction can be formed for ease of the stretching-machine that provides of the present invention, in addition to more than one and quantity are less than stretching
The stretching platform of element number, the stretching platform is rigid member, and at least one stretching is respectively provided with each stretching platform
Unit.Draw unit one stretching assembly of formation of one stretching platform combination of the above thereon, so, a stretching assembly is completed
One or more kingbolt stretchings, multiple stretching assemblies, which are combined, completes integrally stretching, and the stretching platform of arrangement above can
Different structure form and draw unit arrangement are set according to specific application occasion, so can not only realize that modularization is uniformly drawn
Stretch, while being conducive to improving the present invention in the efficiency of loading and unloading on pressure vessel.In the present embodiment, the technical scheme is for heap-type
The kingbolt stretching of AP1000 pressure vessel, the quantity for stretching assembly of setting is 5, is included again on each stretching assembly
9 draw units.
For ease of obtaining higher pressure and pressure more stable high-pressure medium with driving hydraulic cylinder, on each stretching platform
A pressurized cylinder is provided with, the cylinder pressure medium input of the draw unit on each stretching platform is both connected to pressurized cylinder
Output end on, the input of pressurized cylinder is connected with hydraulic station.
For the benefit of the present invention uses high-pressure medium as the security of Driven by Hydraulic Cylinder, in addition to for flexible pipe security protection
Safety device, the safety device be safety guard, pressure gauge, relief valve, the pressure sensing being connected with hydraulic station
One or more in device.
Embodiment 3：
Present invention also offers a kind of application method of stretching-machine, the stretching-machine is provided by any one above-mentioned embodiment
Any one reactor pressure vessel kingbolt combined type integrally stretching machine, it is following that the application method includes that order carries out
Step：
1）, draw unit is hoisted to one by one at the top of pressure vessel using hanging device, complete mother nut rotating mechanism with
The connection of kingbolt upper cap nut and the connection of stretching nut rotating mechanism and screw thread on kingbolt；
2）, completed using cable each draw unit and measurement switch board electrical connection and using flexible pipe complete hydraulic station with
The pressure medium conduit connection of each draw unit；
3）, amount of tension parameter is set on measurement switch board, stretching nut rotating mechanism completes single according to amount of tension parameter
Secondary stretching, and the amount of tension of single stretching is not more than total amount of tension of requirement；
4）, repeat step 3）, until the elongation for the kingbolt that is stretched reaches total amount of tension.
Above step 3）In, it is intended to a kind of open stretching mode step by step, it can not only ensure single master using stretching step by step
Stretching pressure on bolt gently stablizes increase, while can ensure that multiple kingbolts meet amount of tension uniformity and uniformity will
Ask, as a kind of concrete scheme, may be set to point three phases and carry out, be i.e. respectively final pressure（The corresponding pressure of total amount of tension
Power）1/3rd, 2/3rds, final pressure, can also as needed user set；A staged pressure is often completed to keep
Time be system judge automatically after pressure stability 1 minute, can also user setting, it is ensured that stretching pressure stability reach setting value.
Embodiment 4：
The present embodiment is further qualified to a kind of application method of stretching-machine shown in embodiment 3, is further equilibrium
Multiple kingbolts simultaneously in drawing process each kingbolt extended length uniformity, the bolting face used beneficial to kingbolt
Sealing effectiveness and each kingbolt stress uniformity, in step 3）With step 4）Between also include set-up procedure, the tune
Synchronizing is suddenly：After draw unit has performed the stretching numerical quantity of input, by the reality for finely tuning hydraulic cylinder in each draw unit
Border pressure, the actual amount of tension of kingbolt corresponding to each draw unit is finely adjusted.In the present embodiment, above hydraulic cylinder is actual
Pressure fine setting can be realized in the form of to hydraulic cylinder pressure relief.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (6)
1. reactor pressure vessel kingbolt combined type integrally stretching machine, including measurement switch board and it is connected with measurement switch board
Hydraulic station, it is characterised in that also including more than one draw unit, the draw unit includes hydraulic cylinder, mother nut and rotated
Mechanism, stretching nut rotating mechanism and stretching measuring device, the stretching nut rotating mechanism are fixedly connected with hydraulic cylinder, liquid
The pressure medium input of cylinder pressure is connected with hydraulic station, mother nut rotating mechanism, stretching nut rotating mechanism and stretching measurement
Device with measurement switch board electrically connect, and mother nut rotating mechanism, stretching nut rotating mechanism and stretching measuring device and
Switch board is measured by cable connection, hydraulic station is connected with hydraulic cylinder by flexible pipe；
Also include more than one and quantity be less than the stretching platform of draw unit quantity, the stretching platform is rigid member,
At least one draw unit is respectively provided with each stretching platform.
2. reactor pressure vessel kingbolt combined type integrally stretching machine according to claim 1, it is characterised in that described
Aviation plug is provided with cable at least one end, the flexible pipe is provided with snap joint at least one end.
3. the reactor pressure vessel kingbolt combined type integrally stretching machine according in claim 1, it is characterised in that each
A pressurized cylinder is provided with individual stretching platform, the cylinder pressure medium input of the draw unit on each stretching platform is equal
It is connected in the output end of pressurized cylinder, the input of pressurized cylinder is connected with hydraulic station.
4. reactor pressure vessel kingbolt combined type integrally stretching machine according to claim 1, it is characterised in that also wrap
The safety device for flexible pipe security protection is included, the safety device is safety guard, pressure gauge, relief valve and liquid
One or more in the connected pressure sensor in pressure station.
5. the application method of stretching-machine, the stretching-machine is the reactor pressure vessel master described in any one in claim 1-4
Bolt combination formula integrally stretching machine, it is characterised in that the application method includes the following steps that order is carried out：
1）, draw unit is hoisted to one by one at the top of pressure vessel using hanging device, complete mother nut rotating mechanism and main spiral shell
The connection of bolt upper cap nut and the connection of stretching nut rotating mechanism and screw thread on kingbolt；
2）, complete using cable each draw unit and complete hydraulic station and each with the electrical connection of measurement switch board and using flexible pipe
The pressure medium conduit connection of draw unit；
3）, measurement switch board on set amount of tension parameter, stretching nut rotating mechanism according to amount of tension parameter complete single draw
Stretch, and the amount of tension of single stretching is not more than total amount of tension of requirement；
4）, repeat step 3）, until the elongation for the kingbolt that is stretched reaches total amount of tension.
6. the application method of stretching-machine according to claim 5, it is characterised in that in step 3）With step 4）Between also wrap
Set-up procedure is included, the set-up procedure is：After draw unit has performed the stretching numerical quantity of input, stretched by finely tuning each
The actual pressure of hydraulic cylinder in unit, the actual amount of tension of kingbolt corresponding to each draw unit is finely adjusted.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383425.XA CN104959441B (en) | 2015-07-03 | 2015-07-03 | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method |
| PCT/CN2016/079242 WO2017005027A1 (en) | 2015-07-03 | 2016-04-14 | Combined-type integral tensioner for main bolt of reactor pressure vessel and method of use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383425.XA CN104959441B (en) | 2015-07-03 | 2015-07-03 | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959441A CN104959441A (en) | 2015-10-07 |
| CN104959441B true CN104959441B (en) | 2017-09-29 |
Family
ID=54213621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510383425.XA Active CN104959441B (en) | 2015-07-03 | 2015-07-03 | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104959441B (en) |
| WO (1) | WO2017005027A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959441B (en) * | 2015-07-03 | 2017-09-29 | 成都海光核电技术服务有限公司 | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method |
| CN108231219A (en) * | 2017-12-29 | 2018-06-29 | 安徽中科超安科技有限公司 | Nuclear power is precious with long-range dismantlement of overlength sleeve and hoist and mount integrated device |
| CN108730310A (en) * | 2018-07-18 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Reactor coolant pump bolt tension conversion equipment |
| CN110900506B (en) * | 2019-11-22 | 2021-05-18 | 武汉理工大学 | High-precision hydraulic stretcher |
| CN111823199A (en) * | 2020-07-06 | 2020-10-27 | 江苏核电有限公司 | Test bench for testing reliability of bolt stretcher and testing method thereof |
| CN112025625B (en) * | 2020-08-06 | 2022-06-17 | 岭东核电有限公司 | Reactor pressure vessel main bolt stretching operation method and pressure vessel cover closing method |
| CN112045400B (en) * | 2020-08-28 | 2021-08-20 | 三门核电有限公司 | Large-scale shielding main pump main bolt stretching device and stretching method |
| CN112179556A (en) * | 2020-09-29 | 2021-01-05 | 核工业西南物理研究院 | Fusion reactor bolt set pre-tightening detection device and pre-tightening detection method thereof |
| CN112171256A (en) * | 2020-10-19 | 2021-01-05 | 上海核工程研究设计院有限公司 | Multi-working-head synchronous bolt insertion machine for reactor pressure vessel |
| CN113894533B (en) * | 2021-12-08 | 2022-02-18 | 东方法马通核泵有限责任公司 | Hydraulic stretching quick installation method for main pump main bolt |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590336B1 (en) * | 1985-11-21 | 1988-02-12 | Sealol | METHOD OF TIGHTENING AND / OR UNLOCKING BOLTS AND DEVICE FOR CARRYING OUT THE METHOD |
| US20090151517A1 (en) * | 2002-12-16 | 2009-06-18 | Martin Gosling | Bolted Assembly and Apparatus and Method for Tensioning the Bolted Assembly |
| CN201524901U (en) * | 2009-09-24 | 2010-07-14 | 大连交通大学 | Novel bolt stretching machine |
| CN201720677U (en) * | 2010-04-01 | 2011-01-26 | 大连交通大学 | Parallel-drive hydraulic bolt stretcher |
| JP5650171B2 (en) * | 2012-08-24 | 2015-01-07 | 株式会社日本製鋼所 | Bolt tensioner |
| CN203956473U (en) * | 2014-06-13 | 2014-11-26 | 中科华核电技术研究院有限公司 | The whole bolt stretching machine of nuclear reactor pressure container |
| CN104551640B (en) * | 2014-12-29 | 2017-03-08 | 中国第一重型机械股份公司 | Full work station bolt stretching machine |
| CN104551637B (en) * | 2014-12-29 | 2016-12-07 | 中国第一重型机械股份公司 | A kind of bolt stretching machine for pressure vessel |
| CN104959441B (en) * | 2015-07-03 | 2017-09-29 | 成都海光核电技术服务有限公司 | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method |
| CN204724669U (en) * | 2015-07-03 | 2015-10-28 | 成都海光核电技术服务有限公司 | Reactor pressure vessel kingbolt combined integrate stretching-machine structure |
-
2015
- 2015-07-03 CN CN201510383425.XA patent/CN104959441B/en active Active
-
2016
- 2016-04-14 WO PCT/CN2016/079242 patent/WO2017005027A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017005027A1 (en) | 2017-01-12 |
| CN104959441A (en) | 2015-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959441B (en) | Reactor pressure vessel kingbolt combined type integrally stretching machine and its application method | |
| CN206990178U (en) | The automatic bulge test device of motor-driven valve | |
| CN206571704U (en) | Nuclear power shielding main pump dismounting process test-bed | |
| CN206960072U (en) | A kind of device for valve pressure testing | |
| CN202306909U (en) | Hydraulic-pneumatic transmission comprehensive teaching experiment device | |
| CN106160202A (en) | The method of supplying power to of a kind of nuclear power plant Primary hydraulic test and system | |
| CN103111837A (en) | Vapor generator primary side baffle operation robot | |
| CN206263862U (en) | A kind of pad instrument installed for upper-part in-reactor component control rod guide tubes and bundles | |
| CN107942279A (en) | Voltage transformer scene movable detecting platform and detection method in energy metering device | |
| CN202836945U (en) | Detector for key caps of keyboard | |
| CN104678853A (en) | Hopkinson pressure bar experimental equipment control system based on electromagnetic force loading | |
| CN204724669U (en) | Reactor pressure vessel kingbolt combined integrate stretching-machine structure | |
| CN104551637B (en) | A kind of bolt stretching machine for pressure vessel | |
| CN110436378A (en) | A kind of safe lifting and fixing device of automobile inspection maintenance | |
| CN205861787U (en) | A kind of high-pressure test platform of static var compensator | |
| CN206208678U (en) | A kind of fatigue experimental device of beam | |
| CN102375110A (en) | Comprehensive automatic control console for alternating-current voltage withstand test | |
| CN204353747U (en) | The full-automatic kingbolt stretching-machine of monomer | |
| CN201392993Y (en) | DCS control module for nuclear power engineering transformer | |
| CN104236511A (en) | Visualized test rack for contact engagement of handcart type breaker | |
| CN201680987U (en) | Marine safety valve testing platform | |
| CN211121774U (en) | Auxiliary checking device for static pressure type pressure instrument | |
| CN103997250B (en) | A kind of digital control regulated inverter | |
| CN206623045U (en) | Valve dismantling device | |
| CN204381806U (en) | A kind of bolt stretching machine for pressure vessel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |