CN102085996A - Spent fuel storage tank hanger of high-temperature gas cooled reactor power station - Google Patents
Spent fuel storage tank hanger of high-temperature gas cooled reactor power station Download PDFInfo
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- CN102085996A CN102085996A CN 201110003459 CN201110003459A CN102085996A CN 102085996 A CN102085996 A CN 102085996A CN 201110003459 CN201110003459 CN 201110003459 CN 201110003459 A CN201110003459 A CN 201110003459A CN 102085996 A CN102085996 A CN 102085996A
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- Prior art keywords
- pulley
- assembly
- shielding
- sight shield
- rotary pawl
- Prior art date
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- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 210000000078 claw Anatomy 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
本发明涉及一种高温气冷堆电站乏燃料贮罐吊具，由箱体、滑轮组件、钢丝绳、夹绳器、屏蔽板、旋转卡爪组件、电动推杆和限位开关组成，箱体呈矩形结构，屏蔽板由底板和屏蔽筒组成，屏蔽板安装于箱体内，滑轮组件为四套，两两通过轴承和滑轮轴安装于箱体内两侧，且位于屏蔽板的屏蔽筒壁外；夹绳器位于同侧的两套滑轮组件之间，钢丝绳一端固定于夹绳器上，另一端穿过滑轮组件连接提升端；旋转卡爪组件为四套，分别安装于屏蔽板的底板上，电动推杆为四套，均匀分布于屏蔽板的屏蔽筒外壁上，每套电动推杆分别通过销钉连接相应的旋转卡爪组件上的锁销一臂，用于控制旋转卡爪组件，限位开关安装于屏蔽板底板上，用于控制旋转卡爪组件的转动位置。本发明结构紧凑占用空间小，可靠性高，主要应用于高温高辐射环境下乏燃料贮罐吊运。
The invention relates to a hanger for a spent fuel storage tank of a high-temperature gas-cooled reactor power station, which is composed of a box body, a pulley assembly, a steel wire rope, a rope clamp, a shielding plate, a rotating claw assembly, an electric push rod and a limit switch. Rectangular structure, the shielding plate is composed of a bottom plate and a shielding cylinder, the shielding plate is installed in the box, and there are four sets of pulley assemblies, two of which are installed on both sides of the box through bearings and pulley shafts, and are located outside the shielding cylinder wall of the shielding plate; The rope device is located between the two sets of pulley assemblies on the same side. One end of the wire rope is fixed on the rope clamp, and the other end passes through the pulley assembly to connect to the lifting end; There are four sets of push rods, which are evenly distributed on the outer wall of the shielding tube of the shielding plate. Each set of electric push rods is connected to the corresponding lock pin arm on the corresponding rotating claw assembly through pins, and is used to control the rotating claw assembly and the limit switch. Installed on the bottom plate of the shielding plate, it is used to control the rotation position of the rotary claw assembly. The invention has a compact structure, takes up little space and has high reliability, and is mainly used for hoisting and transporting spent fuel storage tanks under high-temperature and high-radiation environments.
Description
Technical field
The invention belongs to elevator machinery and nuclear power mechanical equipment field, be specifically related to a kind of HTGR power station spentnuclear fuel basin suspender (FAB).
Background technology
The ground car is an important equipment in the spent fuel storage system of HTGR power station, fuel element temporary when the storage of spentnuclear fuel and emptying reactor core when being used for reactor operation.Its function be by command request with the spentnuclear fuel basin in the screened housing on the ground car, transport and lift in the vertical shaft that enters appointment.And when needed, by instruction the spentnuclear fuel basin is hung out in vertical shaft, outward transport in the transhipment hole for hoist is packed shielding transhipment jar into, or move to charging position and send the fuel element of keeping in back to reactor core by the mode of suction.Because the radiativity of spentnuclear fuel, to the lifting of spentnuclear fuel basin with transport all and finish in shielding device, so the hook of suspender, breaking off relations all needs to finish automatically, and will guarantee very high reliability.In addition, consider the radiation shield of cable and instrument control signal, the steel shielding thickness of suspender requires to be 150mm, and all kinds of cables should be adequately protected by the steel shielding.In addition, lifting mechanism adopts two cover steel ropes, guarantees two cover steel ropes distribute loads equably, and when wherein a cover damages, and another set ofly should be able to maintain load and keep the basin balance.
Summary of the invention
The object of the present invention is to provide a kind of HTGR power station spentnuclear fuel basin suspender, and have very high safety, can normally operation under nuclear radiation environment.
The HTGR power station spentnuclear fuel basin suspender that the present invention proposes, form by casing 1, pulley assembly 2, steel rope 3, wire holder 4, sight shield 5, rotary pawl assembly 6, electric pushrod 7 and limit switch 8, wherein: casing 1 rectangular structure, sight shield 5 is made up of base plate and shielding cylinder, sight shield 5 is installed in the casing 1, pulley assembly 2 is a quadruplet, is installed on both sides in the casing 1 by bearing and sheave shaft in twos, and is positioned at outside the shielding barrel of sight shield 5; Wire holder 4 is between two cover pulley assemblies 2 of homonymy, and steel rope 3 one ends are fixed on the wire holder 4, and the other end passes pulley assembly 2 and connects the lifting end; Rotary pawl assembly 6 is a quadruplet, be installed on respectively on the base plate of sight shield 5, electric pushrod 7 is a quadruplet, be uniformly distributed on the shielding cylinder outer wall of sight shield 5, every cover electric pushrod 7 connects lock pin one arm on the corresponding rotary pawl assembly 6 by pin respectively, be used to control rotary pawl assembly 6, limit switch 8 is installed on sight shield 5 base plates, is used to control the turned position of rotary pawl assembly 6.
Among the present invention, pulley assembly 2 is connected by plain bearing or antifriction-bearing box with sheave shaft by pulley.
Working process of the present invention is as follows:
1, with basin suspender 9 centers and spentnuclear fuel basin 10(lifting object) center is tentatively to the heart, as shown in Figure 5;
2, starting four synchronous ends that promote steadily descends basin suspender 9, basin suspender 9 slides into spentnuclear fuel basin 10 by the registration device on the basin and combines, simultaneously four groups of rotary pawl assembly 6 pawl ends enter respectively in four square claw grooves on the spentnuclear fuel basin 10, at this moment, spentnuclear fuel basin 10 holds up basin suspender 9, and steel rope 3 tension force are decreased to and are about 0, promotes the stall of end motor, suspender stops to descend, as shown in Figure 6;
3, the electric pushrod 7 that starts on the basin suspender 9 is released electric pushrod 7, rotates 90 ° thereby rotate rotary pawl assembly 6, realizes the hook action, as shown in Figure 7;
4, after four limit switches 8 detected rotary pawl assembly 6 hooks and put in place, four ends that hoist synchronously promoted basin suspenders 9 synchronously, finish the lifting action, as Fig. 8;
5, after basin promotes and puts in place, start four synchronous ends that promote suspender is steadily descended, transfer when putting in place, steel rope 3 tension force are decreased to and are about 0, promote the stall of end motor, stop decline, as shown in Figure 7;
6, the electric pushrod 7 that starts on the suspender rotates 6 90 ° of realization unhook of rotary pawl assembly action, as shown in Figure 6;
7, after four limit switches 8 detected rotary pawl assembly 6 and rotate in place, four ends that hoist synchronously promoted suspenders synchronously, finishing the action of breaking off relations, as Fig. 5.
Electric lifting tool reliability height of the present invention has four synchronous folding and unfolding steel ropes 3 of steel wire end, realizes promoting synchronously, even a wire cable rupture, suspender still can keep balance, finishes the handling action.
Electric lifting tool of the present invention has the thick steel shielding of 150mm, and all control panels are installed on the sight shield 5, and all kinds of cables are all adequately protected by the steel shielding.
Electric lifting tool of the present invention realizes that by four electric pushrods, 7 control quadruplet rotary pawl assemblies 6 automatic hitch breaks off relations, and need not artificial interference, and reliable operation.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a birds-eye view of the present invention.
Fig. 3 is partial view D of the present invention.
Fig. 4 is a left view of the present invention.
Fig. 5 is workflow 1 figure of the present invention.
Fig. 6 is workflow 2 figure of the present invention.
Fig. 7 is workflow 3 figure of the present invention.
Fig. 8 is workflow 4 figure of the present invention.
Fig. 9 is lock pin of the present invention rotation limit position 1.
Figure 10 is lock pin of the present invention rotation limit position 2.
Number in the figure: 1 is casing; 2 is pulley assembly; 3 is steel rope; 4 is wire holder; 5 is sight shield; 6 is rotary pawl; 7 is electric pushrod; 8 is limit switch; 9 is the basin suspender; 10 is the spentnuclear fuel basin.
The specific embodiment
Further specify the present invention in conjunction with the accompanying drawings below by embodiment.
Embodiment 1: basin suspender 9 is made up of casing 1, pulley assembly 2, steel rope 3, wire holder 4, sight shield 5, rotary pawl assembly 6, electric pushrod 7 and limit switch 8, casing 1 can be a rectangular shape, sight shield 5 is installed in the casing 1, there is the feed opening that passes through for spentnuclear fuel at sight shield 5 centers, sight shield 5 thickness are to contain 150mm more than the 150mm, and electric pushrod 7 or other control panels and cable must be protected by conductively-closed plate 5 fully; Casing 1 is equipped with two groups of pulley assemblies 2, and two every group, this routine middle pulley is connected with plain bearing with sheave shaft, can use antifriction-bearing box to connect; This routine suspender takies vertically to about the 300mm of space, can control according to actual conditions; In this example, rotary pawl assembly 6 heads adopt oblong cone form, be connected with two plain bearings between rotary pawl assembly 6 and the basin suspender 9, according to magnitude of load and basin suspender 9 concrete shapes, can adopt antifriction-bearing box to connect, rotary pawl 6 heads also can adopt other shapes, only otherwise influence hook and breaking off relations gets final product.
Suspender casing 1 is divided into three intervals by dividing plate, lays sight shield 5 between central area, and shielding cylinder is arranged in the middle of the sight shield 5, and spentnuclear fuel is by the turnover of the hole in shielding cylinder spentnuclear fuel basin 10, and all electronic machines are installed on the sight shield; Isolate radiation by the sight shield 5 that 150mm is thick, quadruplet rotary pawl assembly 6 is installed on the sight shield 5, four electric pushrods 7 are controlled quadruplet rotary pawl assembly 6 respectively, every cover rotary pawl 6 all has two end positions such as Fig. 9, Figure 10: hook position and unhook position, two positions of every cover rotary pawl assembly 6 by 8 controls of two limit switches, are rotated in place with assurance respectively; Two cover wire rope pulleys 2 are respectively installed in the interval, both sides, pulley installation site such as Fig. 2, Fig. 4, length of cable between same interval two pulleys is installed wire holder 4 and is clamped steel rope 3, suspender is promoted synchronously by four ends that hoist, promote end invar silk fracture of rope if any one and lost efficacy, other three promote end and still can keep the suspender balance and finish lifting operation.
Adopt the wire holder 4 as shown in Fig. 2 and Fig. 4 in this example, the rope stretch inequality that installation error and load inequality cause when considering construction, after wire holder is installed, steel rope has the mobile adjustment surplus of 5mm ~ 10mm, when certain root wire cable rupture lost efficacy, suspender has slight deflection, can independently select wire holder type (fixed or moveable type) and mobile surplus size according to the requirement of deflection.Casing needs enough rigidity, carries full spentnuclear fuel basin and sight shield.
Claims (2)
1. HTGR power station spentnuclear fuel basin suspender, form by casing (1), pulley assembly (2), steel rope (3), wire holder (4), sight shield (5), rotary pawl assembly (6), electric pushrod (7) and limit switch (8), it is characterized in that the rectangular structure of casing (1), sight shield (5) is made up of base plate and shielding cylinder, sight shield (5) is installed in the casing (1), pulley assembly (2) is a quadruplet, be installed on the interior both sides of casing (1) by bearing and sheave shaft in twos, and be positioned at outside the shielding barrel of sight shield (5); Wire holder (4) is positioned between the two cover pulley assemblies (2) of homonymy, and steel rope (3) one ends are fixed on the wire holder (4), and the other end passes pulley assembly (2) and connects the lifting end; Rotary pawl assembly (6) is a quadruplet, be installed on respectively on the base plate of sight shield (5), electric pushrod (7) is a quadruplet, be uniformly distributed on the shielding cylinder outer wall of sight shield (5), every cover electric pushrod (7) connects lock pin one arm on the corresponding rotary pawl assembly (6) by pin respectively, be used to control rotary pawl assembly (6), limit switch (8) is installed on sight shield (5) base plate, is used to control the turned position of rotary pawl assembly (6).
2. HTGR according to claim 1 power station spentnuclear fuel basin suspender is characterized in that pulley assembly (2) is connected by plain bearing or antifriction-bearing box with sheave shaft by pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100034593A CN102085996B (en) | 2011-01-10 | 2011-01-10 | Spent fuel storage tank hanger of high-temperature gas cooled reactor power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100034593A CN102085996B (en) | 2011-01-10 | 2011-01-10 | Spent fuel storage tank hanger of high-temperature gas cooled reactor power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102085996A true CN102085996A (en) | 2011-06-08 |
| CN102085996B CN102085996B (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100034593A Expired - Fee Related CN102085996B (en) | 2011-01-10 | 2011-01-10 | Spent fuel storage tank hanger of high-temperature gas cooled reactor power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102085996B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668401A (en) * | 2016-03-09 | 2016-06-15 | 太原重工股份有限公司 | Nuclear power station crane and automatic gripping apparatus thereof |
| CN113321144A (en) * | 2021-06-09 | 2021-08-31 | 魏小龙 | Lifting equipment and lifting method for installation construction of chemical pressure vessel |
| CN114803852A (en) * | 2022-04-22 | 2022-07-29 | 江苏金秋竹集团有限公司 | Unpowered shielding lifting device |
| CN115831411A (en) * | 2022-12-28 | 2023-03-21 | 中国原子能科学研究院 | Spent fuel assembly gripping device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1579118A (en) * | 1967-08-07 | 1969-08-22 | ||
| DE4410395A1 (en) * | 1994-03-25 | 1995-09-28 | Siemens Ag | Lifting attachment improves the security of the load |
| DE19654155A1 (en) * | 1995-12-27 | 1997-07-03 | Toshiba Kawasaki Kk | Handling device for removing reactor core mantle cover and pipes |
| CN101916605A (en) * | 2010-07-26 | 2010-12-15 | 清华大学 | A complete set of equipment for shielding cover of nuclear power plant spent fuel storage tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW350546U (en) * | 1998-02-19 | 1999-01-11 | Golden House Optical Manufactory Ltd | Novel eyeglasses assembly |
-
2011
- 2011-01-10 CN CN2011100034593A patent/CN102085996B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1579118A (en) * | 1967-08-07 | 1969-08-22 | ||
| DE4410395A1 (en) * | 1994-03-25 | 1995-09-28 | Siemens Ag | Lifting attachment improves the security of the load |
| DE19654155A1 (en) * | 1995-12-27 | 1997-07-03 | Toshiba Kawasaki Kk | Handling device for removing reactor core mantle cover and pipes |
| CN101916605A (en) * | 2010-07-26 | 2010-12-15 | 清华大学 | A complete set of equipment for shielding cover of nuclear power plant spent fuel storage tank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668401A (en) * | 2016-03-09 | 2016-06-15 | 太原重工股份有限公司 | Nuclear power station crane and automatic gripping apparatus thereof |
| CN113321144A (en) * | 2021-06-09 | 2021-08-31 | 魏小龙 | Lifting equipment and lifting method for installation construction of chemical pressure vessel |
| CN114803852A (en) * | 2022-04-22 | 2022-07-29 | 江苏金秋竹集团有限公司 | Unpowered shielding lifting device |
| CN115831411A (en) * | 2022-12-28 | 2023-03-21 | 中国原子能科学研究院 | Spent fuel assembly gripping device |
| CN115831411B (en) * | 2022-12-28 | 2024-05-31 | 中国原子能科学研究院 | Spent fuel assembly grabbing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102085996B (en) | 2012-11-07 |
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