CN103165205B - Fuel assembly bite hydraulic pressure separating instrument - Google Patents
Fuel assembly bite hydraulic pressure separating instrument Download PDFInfo
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- CN103165205B CN103165205B CN201110414832.4A CN201110414832A CN103165205B CN 103165205 B CN103165205 B CN 103165205B CN 201110414832 A CN201110414832 A CN 201110414832A CN 103165205 B CN103165205 B CN 103165205B
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- fuel assembly
- hydraulic
- bite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The present invention relates to the hydraulic pressure separating instrument of bite between a kind of fuel assembly and heap internal upper part component.This instrument comprises hand hydraulic pump, high-pressure hose, pipe adapter and splitter cylinder; Splitter cylinder comprises top cover, cylinder body, piston, guide pole, spring and disengaging pawl; The end face of cylinder body vertically has three cylindrical cavities to cylinder interior, and three integral hollow triangularities are arranged; In the first cavity, be provided with piston, the cylinder body of the first cavity bottom has hydraulic medium entrance; In the second cavity and the 3rd cavity, be respectively arranged with a guide pole, the equal overcoat of every root guide pole has spring; Top cover is positioned at cylinder body upper end, and piston is fixedly connected with top cover respectively with the upper end of two guide poles; On the lateral surface of the first cavity, disengaging pawl is connected with at cylinder body; The outlet of hand hydraulic pump is connected with one end of high-pressure hose, and the other end of high-pressure hose is connected with hydraulic medium entrance by pipe adapter.This instrument can realize fuel assembly and being separated during heap internal upper part component bite.
Description
Technical field
The invention belongs to hydraulic pressure separating instrument, be specifically related to the hydraulic pressure separating instrument of bite between a kind of fuel assembly and heap internal upper part component.
Background technology
As shown in Figure 5, due to the cumulative effect of Various Complex factor, make the guide finger 18 piling internal upper part component 15 depart from fuel assembly pilot hole, cause, between this group fuel assembly and heap internal upper part component 15, bite phenomenon occurs, during lifting heap internal upper part component 15, this fuel assembly is taken up.If now there is no separation means safely and effectively, once external factor causes the fuel assembly of bite to fall suddenly, will scrapping of fuel assembly be caused, even damage heap other fuel assembly of in-core and equipment, there is security risk.So far, when there is a lot of lifting heap internal upper part component 15 in Foreign Pressurized Water nuclear power station, the event that fuel assembly is taken up, so that delay overhaul is reloaded the time, causes tremendous economic to lose.Therefore, this type of situation of a kind of dedicated separation instrument process is badly in need of.
Summary of the invention
The object of the present invention is to provide a kind of fuel assembly bite hydraulic pressure separating instrument, to meet the demand, ensure device security in fuel assembly and heap, reduce delay and the nuclear power station economic loss of time of reloading.
For achieving the above object, the technical solution used in the present invention is: a kind of fuel assembly bite hydraulic pressure separating instrument comprises hand hydraulic pump, high-pressure hose, pipe adapter and splitter cylinder; Splitter cylinder comprises top cover, cylinder body, piston, guide pole, spring and disengaging pawl; The end face of cylinder body vertically has three cylindrical cavities to cylinder interior, and wherein the first cavity is positioned at the side of cylinder body central shaft, and the second cavity and the 3rd cavity are positioned at the opposite side of cylinder body central shaft, relative with the first cavity, and three integral hollow triangularities are arranged; In the first cavity, be provided with piston, the cylinder body of the first cavity bottom has hydraulic medium entrance; In the second cavity and the 3rd cavity, be respectively arranged with a guide pole, the equal overcoat of every root guide pole has spring; Piston and guide pole all can move up and down in respective cavity; Top cover is positioned at cylinder body upper end, and it has three through holes with cylinder body three cavity correspondence positions, and the upper end of piston and two guide poles is inserted in three through holes of top cover respectively, and is fixedly connected with top cover; On the lateral surface of the first cavity, be connected with disengaging pawl at cylinder body, the shape of disengaging pawl and the spatial form between pressurized leaf spring and upper base match; The outlet of hand hydraulic pump is connected with one end of high-pressure hose, and the other end of high-pressure hose is connected with hydraulic medium entrance by pipe adapter.
Between the outlet and high-pressure hose of described hand hydraulic pump, between high-pressure hose and pipe adapter, be respectively arranged with hydraulic quick coupler.
Tensimeter is provided with between described hydraulic quick coupler and the outlet of hand hydraulic pump.
The line of the second described cavity and the 3rd cavity is perpendicular to the line of the first cavity and cylinder body central shaft.
Described cylinder body has been connected by screw disengaging pawl.
The material of this instrument is stainless steel.
Hydraulic medium in this instrument adopts deionized water.
Beneficial effect acquired by the present invention is:
Being separated when fuel assembly bite hydraulic pressure separating instrument of the present invention can realize fuel assembly and heap internal upper part component bite, ensures the safety of equipment in fuel assembly and heap, avoids fuel assembly to damage causing radioactivity risk and overhaul to reload the delay of time.
The hydraulic system of fuel assembly bite hydraulic pressure separating instrument of the present invention, the water hydrostatic transmission that i.e. hand hydraulic pump-splitter cylinder adopts engineer applied less, hydraulic medium adopts deionized water, and the equipment of a whole set of hydraulic system all adopts oil-free lubricatoin device, main components is stainless steel, to meet larger separating force, ensure that the water quality of reactor pit is not subject to a bit pollution simultaneously.
Accompanying drawing explanation
Fig. 1 is fuel assembly bite hydraulic pressure separating tool construction figure of the present invention
Fig. 2 is the splitter cylinder sectional side view of fuel assembly bite hydraulic pressure separating instrument of the present invention;
Fig. 3 is the splitter cylinder front view of fuel assembly bite hydraulic pressure separating instrument of the present invention;
Fig. 4 is the splitter cylinder vertical view of fuel assembly bite hydraulic pressure separating instrument of the present invention;
Fig. 5 is fuel assembly and upper component bite situation schematic diagram;
In figure: 1, hand hydraulic pump; 2, tensimeter; 3, hydraulic quick coupler; 4, high-pressure hose; 5, pipe adapter; 6, top cover; 7, cylinder body; 8, piston; 9, guide pole; 10, spring; 11, disengaging pawl; 12, screw; 13, splitter cylinder; 14, hydraulic medium entrance; 15, internal upper part component is piled; 16, leaf spring; 17, upper base; 18, guide finger.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, fuel assembly bite hydraulic pressure separating instrument of the present invention comprises hand hydraulic pump 1, tensimeter 2, hydraulic quick coupler 3, high-pressure hose 4, pipe adapter 5 and splitter cylinder 13; As shown in Figure 2, Figure 3, Figure 4, splitter cylinder 13 comprises top cover 6, cylinder body 7, piston 8, guide pole 9, spring 10 and disengaging pawl 11; Wherein have three cylindrical cavities at the end face of cylinder body 7 to cylinder body 7 inner vertical, wherein the first cavity is positioned at the side of cylinder body 7 central shaft, second cavity and the 3rd cavity are positioned at the opposite side of cylinder body 7 central shaft, relative with the first cavity, and the line of the second cavity and the 3rd cavity is perpendicular to the line of the first cavity and cylinder body 7 central shaft, three integral hollow triangularities are arranged; In the first cavity, be provided with piston 8, the cylinder body 7 of the first cavity bottom has hydraulic medium entrance 14; In the second cavity and the 3rd cavity, be respectively arranged with a guide pole 9, every root guide pole 9 all overcoat has spring 10; Piston 8 and guide pole 9 all can move up and down in respective cavity; Top cover 6 is positioned at cylinder body 7 upper end, and it has three through holes with cylinder body 7 three cavity correspondence positions, and the upper end of piston 8 and two guide poles 9 is inserted in three through holes of top cover 6 respectively, and is fixedly connected with top cover 6; On the lateral surface of the first cavity, be connected with disengaging pawl 11 at cylinder body 7 by screw 12, the shape of disengaging pawl 11 and the spatial form between pressurized leaf spring 16 and upper base 17 match; The outlet of hand hydraulic pump 1 is connected with one end of high-pressure hose 4, the other end of high-pressure hose 4 is connected with hydraulic medium entrance 14 by pipe adapter 5, between the outlet and high-pressure hose 4 of hand hydraulic pump 1, between high-pressure hose 4 and pipe adapter 5, be respectively arranged with hydraulic quick coupler 3, between hydraulic quick coupler 3 and the outlet of hand hydraulic pump 1, be provided with tensimeter 2.
Wherein: hand hydraulic pump 1 is the power source of this hydraulic pressure separating instrument, for splitter cylinder 13 provides power; The pressure change in detachment process monitored by tensimeter 2, according to the action of pressure change manual control hand hydraulic pump 1; Hydraulic quick coupler 3, high-pressure hose 4 and pipe adapter 5 are for realizing the medium transmission between hand hydraulic pump 1 and splitter cylinder 13; The separating action of fuel assembly bite is realized by splitter cylinder 13; Contacted with heap internal upper part component 15 by top cover 6; Cylinder body 7 provides support and installation foundation for other part; Promote top cover 6 by the jacking of piston 8 to move, realize the separating action of bite fuel assembly; Guide pole 9 provides guiding for moving up and down of piston 8, determines the principle of a plane according to 3 simultaneously, and two guide poles 9 determine this plane of top cover 6, maintenance level when top cover 6 is moved with piston 8; The return of piston 8 and top cover 6 is realized by spring 10; Realized the separation of fuel assembly by disengaging pawl 11, disengaging pawl 11 is parts the most key in this separating tool, and it utilizes the close gap between leaf spring 16 and upper base 17, together realizes being separated of bite fuel assembly with top cover 6.
The gap of this separating tool mainly between heap internal upper part component 15 and reactor flange face protection ring realizes fuel assembly and the safe separating of piling internal upper part component 15.Because radiation proof reason, during work, separating tool completes under 9m deep water, and people is in the bank operated from a distance of+20m platform pond.For security consideration; when lifting by crane heap internal upper part component 15; take up once find that there is fuel assembly thereupon; stop promoting heap internal upper part component 15 at once; now pile the gap very little (within 300mm) between internal upper part component 15 and reactor flange face protection ring; in this gap except separating tool, also need to be provided with the accessory supporting the fuel assembly after being separated.Be separated in addition and need larger separating force with the fuel assembly of heap internal upper part component 15 bite, general pneumatic apparatus is difficult to provide so large separating force under small size condition like this, in order to meet larger separating force, ensure that the water quality of reactor pit is not subject to a bit pollution, the hydraulic system of this separating tool, i.e. hand hydraulic pump 1-splitter cylinder 13 water hydrostatic transmission that adopts engineer applied less, hydraulic medium adopts deionized water, and the equipment of a whole set of hydraulic system all adopts oil-free lubricatoin device, main components is stainless steel.Spatial depiction when based on fuel assembly and heap internal upper part component 15 bite, utilizes the gap between fuel leaf spring 16 and upper base 17 as the point of application of hydraulic pressure separating instrument.
When being separated bite fuel assembly, this separating tool being put into reactor core pond, making it drop on reactor core flange face protection ring, adjusting its orientation, make disengaging pawl 11 just to the bite fuel assembly that need be separated; By special long rod tool and underwater camera, slowly by splitter cylinder 13 near bite fuel assembly; By the mutual alignment between underwater camera adjustment disengaging pawl 13 and upper base 17, disengaging pawl 11 is made just to snap in gap between leaf spring 16 and upper base 17; Operating personnel slowly operate hand hydraulic pump 1 at pond platform, hydraulic medium enters the first cavity by hydraulic quick coupler 3, high-pressure hose 4, pipe adapter 5 and hydraulic medium entrance 14, promote piston 8 to move upward, piston 8 drives top cover 6 to move upward, top cover 6 contacts with heap internal upper part component 15, to realize being separated; If heap internal upper part component 15 cannot be separated, then heap internal upper part component 15 is static relatively for top cover 6, and cylinder body 7 drives disengaging pawl 11 relative motion downwards, to realize being separated; Observe bite fuel assembly and the separation case of heap internal upper part component 15 by camera in this process, until fuel assembly and heap internal upper part component 15 are separated shut-down operation when being supported on support beam completely, complete the lock out operation of bite fuel assembly.
Claims (7)
1. a fuel assembly bite hydraulic pressure separating instrument, is characterized in that: this instrument comprises hand hydraulic pump (1), high-pressure hose (4), pipe adapter (5) and splitter cylinder (13); Splitter cylinder (13) comprises top cover (6), cylinder body (7), piston (8), guide pole (9), spring (10) and disengaging pawl (11); The end face of cylinder body (7) has three cylindrical cavities to cylinder body (7) inner vertical, wherein the first cavity is positioned at the side of cylinder body (7) central shaft, second cavity and the 3rd cavity are positioned at the opposite side of cylinder body (7) central shaft, relative with the first cavity, three integral hollow triangularities are arranged; In the first cavity, be provided with piston (8), the cylinder body (7) of the first cavity bottom has hydraulic medium entrance (14); In the second cavity and the 3rd cavity, be respectively arranged with a guide pole (9), every root guide pole (9) all overcoat has spring (10); Piston (8) and guide pole (9) all can move up and down in respective cavity; Top cover (6) is positioned at cylinder body (7) upper end, it has three through holes with cylinder body (7) three cavity correspondence positions, the upper end of piston (8) and two guide poles (9) is inserted in three through holes of top cover (6) respectively, and is fixedly connected with top cover (6); On the lateral surface of the first cavity, be connected with disengaging pawl (11) at cylinder body (7), the shape of disengaging pawl (11) and the spatial form between pressurized leaf spring (16) and upper base (17) match; The outlet of hand hydraulic pump (1) is connected with one end of high-pressure hose (4), and the other end of high-pressure hose (4) is connected with hydraulic medium entrance (14) by pipe adapter (5).
2. fuel assembly bite hydraulic pressure separating instrument according to claim 1, is characterized in that: between the outlet and high-pressure hose (4) of described hand hydraulic pump (1), be respectively arranged with hydraulic quick coupler (3) between high-pressure hose (4) and pipe adapter (5).
3. fuel assembly bite hydraulic pressure separating instrument according to claim 2, is characterized in that: between described hydraulic quick coupler (3) and the outlet of hand hydraulic pump (1), be provided with tensimeter (2).
4. fuel assembly bite hydraulic pressure separating instrument according to claim 1, is characterized in that: the line of the second described cavity and the 3rd cavity is perpendicular to the line of the first cavity and cylinder body (7) central shaft.
5. fuel assembly bite hydraulic pressure separating instrument according to claim 1, is characterized in that: described cylinder body (7) is connected with disengaging pawl (11) by screw (12).
6. the fuel assembly bite hydraulic pressure separating instrument described arbitrarily according to Claims 1 to 5, is characterized in that: the material of this instrument is stainless steel.
7. the fuel assembly bite hydraulic pressure separating instrument described arbitrarily according to Claims 1 to 5, is characterized in that: the hydraulic medium in this instrument adopts deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414832.4A CN103165205B (en) | 2011-12-13 | 2011-12-13 | Fuel assembly bite hydraulic pressure separating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414832.4A CN103165205B (en) | 2011-12-13 | 2011-12-13 | Fuel assembly bite hydraulic pressure separating instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103165205A CN103165205A (en) | 2013-06-19 |
| CN103165205B true CN103165205B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110414832.4A Active CN103165205B (en) | 2011-12-13 | 2011-12-13 | Fuel assembly bite hydraulic pressure separating instrument |
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| Country | Link |
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| CN (1) | CN103165205B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830315B (en) * | 2019-01-29 | 2022-08-02 | 哈尔滨工程大学 | Expanded nuclear reactor core |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762688A (en) * | 1971-10-28 | 1973-10-02 | Crook D | Hydraulically expanded hand tool for rescue purposes |
| CN2750973Y (en) * | 2004-10-12 | 2006-01-11 | 山东时风（集团）有限责任公司 | Strengthening and assistant device for vibration damper of motor tricycle |
| CN201296626Y (en) * | 2008-11-17 | 2009-08-26 | 傅勇刚 | Separated oil jack |
| CN201931149U (en) * | 2010-12-14 | 2011-08-17 | 宝钢集团新疆八一钢铁有限公司 | High-speed hydraulic plate shearing machine |
| CN202487188U (en) * | 2011-12-13 | 2012-10-10 | 核动力运行研究所 | Hydraulic separating tool for jam of fuel assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08310798A (en) * | 1995-05-18 | 1996-11-26 | Toyota Autom Loom Works Ltd | Flow regulator housing for fork-lift |
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2011
- 2011-12-13 CN CN201110414832.4A patent/CN103165205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762688A (en) * | 1971-10-28 | 1973-10-02 | Crook D | Hydraulically expanded hand tool for rescue purposes |
| CN2750973Y (en) * | 2004-10-12 | 2006-01-11 | 山东时风（集团）有限责任公司 | Strengthening and assistant device for vibration damper of motor tricycle |
| CN201296626Y (en) * | 2008-11-17 | 2009-08-26 | 傅勇刚 | Separated oil jack |
| CN201931149U (en) * | 2010-12-14 | 2011-08-17 | 宝钢集团新疆八一钢铁有限公司 | High-speed hydraulic plate shearing machine |
| CN202487188U (en) * | 2011-12-13 | 2012-10-10 | 核动力运行研究所 | Hydraulic separating tool for jam of fuel assembly |
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| Publication number | Publication date |
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| CN103165205A (en) | 2013-06-19 |
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