CN101804560A - Processing method of safety injection tank tube nozzle - Google Patents
Processing method of safety injection tank tube nozzle Download PDFInfo
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- CN101804560A CN101804560A CN 201010129841 CN201010129841A CN101804560A CN 101804560 A CN101804560 A CN 101804560A CN 201010129841 CN201010129841 CN 201010129841 CN 201010129841 A CN201010129841 A CN 201010129841A CN 101804560 A CN101804560 A CN 101804560A
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000003801 milling Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a processing method of a safety injection tank tube nozzle. The safety injection tank tube nozzle is processed by using a reasonable tool and adopting a numerical control floor boring miller and comprising the steps of: ruling, boring a saddle inner hole, boring an incline tube inner hole, milling an incline end face and an incline tube conical face, and milling an outer surface. The processed safety injection tank tube nozzle meets the processing requirements on special structure and shape of the safety injection tank tube nozzle in a loop main tube of a nuclear station, accords with the technical regulation of the casting safety injection tank tube nozzle for an improved second generation nuclear station, and can meet the requirement for product processing in batch.
Description
(1), technical field the present invention relates generally to a kind of processing method of safety injection tank tube nozzle, is specifically related to the mechanical process technique of nuclear power station one primary loop piping safety injection tank tube nozzle.
(2), the main effect of background technology reactor safety injecting systems is dehydration to take place (for example when a loop, one return takes place to break greatly and causes gross leak) time, safety injection system in time replenishes cooling water just as the safe water system, avoids taking place security incidents such as reactor core meltdown.It mainly partly is made up of high-pressure injection part, accumulator and low head injection.The former starts when medium dehydration, and the latter starts when a large amount of dehydration.Accumulator links to each other with a loop with an isolating valve, by two non-return valves, plays the safety injection effect.These a few part collaborative works can guarantee the cooling of reactor core, and can make the reactor shutdown, guarantee the safety of reactor.
Safety injection tank tube nozzle is the vitals that is used to connect a primary loop piping and accumulator, and be 40 years service life, belongs to nuclear one-level equipment, and in labour service behaviour and security high requirement being arranged, manufacture difficulty is very big.As Fig. 1,2, wherein, safety injection tank tube nozzle is made up of saddle part 11 and inclined tube part 13, and the saddle outer surface is a surface blending part 12, and shape is comparatively complicated, and existing processing method is, adopt the method for manual grinding, the workpiece form accuracy be difficult to guarantee and working (machining) efficiency low.Do not see frock reasonable in design as yet, adopt the report of machine-tooled method fully.
(3), summary of the invention technical problem to be solved by this invention is, a kind of processing method of safety injection tank tube nozzle is provided, by reasonable frock, adopt machine-tooled method fully, make the safety injection tank tube nozzle that processes meet the technical specification of the used casting safety injection tank tube nozzle of " two generations added " nuclear power station.
Technical scheme of the present invention is as follows:
A kind of processing method of safety injection tank tube nozzle is characterized in that carrying out according to following steps:
The first step, line:, on workpiece, mark relevant Working position line and datum line, as the foundation of following process according to the design drawing requirement;
Second step, boring saddle endoporus: base plate is placed on the rotary table of numerical control floor type boring and milling machine, movable bearing support is laid and is fixed on the base plate, the saddle edge of workpiece is placed on the movable bearing support, support with screw jack the inclined tube position of workpiece, adjust the interior axially bored line of workpiece level and saddle and overlap, compress with first pressing plate behind the workpiece centering with the main-shaft axis of numerical control floor type boring and milling machine; With same movable bearing support and adopt same mounting means on base plate, to install and another workpiece level of centering, require two workpiece to keep same horizontal level;
Boring head is installed on the main shaft of numerical control floor type boring and milling machine, the saddle inner surface of workpiece is carried out boring processing, two workpiece of a boring;
The 3rd step, boring inclined tube endoporus: after the saddle inner surface machines, the rotary table of numerical control floor type boring and milling machine is rotated counterclockwise 45 °, adjust the main-shaft axis of numerical control floor type boring and milling machine and the inclined tube endoporus dead in line of workpiece, change suitable boring head, boring inclined tube endoporus; After boring finishes, rotary table is turned round 90 ° clockwise, process the inclined tube endoporus of another workpiece in the same way;
The 4th the step, mill the inclined tube end face and the conical surface: keep the 3rd the step clamping position, replacing dish milling cutter three-shaft linkage milling inclined tube end face and pipe end male cone (strobilus masculinus);
The 5th the step, mill outer surface: workpiece is placed on the clamp body, locating shaft location by clamp body, and compress by second pressing plate, realization is to the milling of workpiece outer surface three-shaft linkage, can process half surface at every turn, after finishing, milling, finally finishes the whole processing of outer surface with second half surface of workpiece Rotate 180 ° milling.
Advantage that the present invention has and effect: (1) this method adopts special surfaces externally and internally processing tool and installation way, be fit to the particular configuration of nuclear power station one primary loop piping safety injection tank tube nozzle and the processing request of shape, the finished product of processing meets the technical specification of the used casting safety injection tank tube nozzle of " two generations added " nuclear power station and can satisfy the requirement of bulk article processing.(2) give full play to the effect of numerical control floor type boring and milling machine, automaticity height, working (machining) efficiency height.(3), during boring saddle endoporus, two workpiece of a boring, the double-pole cutting can avoid because the radial-thrust force that monolateral penetration of a cutting tool causes improves machining accuracy.(4), workpiece outer surface processing adopted the mode clamping of locating, and can guarantee that chucking appliance system has enough rigidity, has improved machining accuracy.
(4), description of drawings: Fig. 1 is a saddle endoporus processing schematic diagram of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is an outer surface processing schematic diagram of the present invention.
Fig. 4 is the schematic side view of Fig. 3.
Fig. 5 is the safety injection tank tube nozzle finished product schematic diagram that the present invention makes.
Fig. 6 is the schematic side view of Fig. 5.
(5), the specific embodiment further specifies the present invention below in conjunction with accompanying drawing and concrete implementation step.
The first step, line:, on workpiece 5, mark relevant Working position line and datum line, as the foundation of following process according to the design drawing requirement.
Second step, boring saddle endoporus: with reference to figure 1, base plate 1 is placed on the rotary table of numerical control floor type boring and milling machine, movable bearing support 3 is placed on the base plate 1 and uses bolting.The saddle edge 4 of workpiece 5 is placed on the movable bearing support 3, and support with screw jack 2 the inclined tube position of workpiece 5.Adjust the interior axially bored line of workpiece 5 levels and saddle and overlap, compress with first pressing plate 7 behind workpiece 5 centerings with the main-shaft axis of numerical control floor type boring and milling machine.With same movable bearing support and adopt same mounting means on base plate 1, to install and another workpiece level of centering, require two workpiece to keep same horizontal level.
Boring head 6 is installed on the main shaft of numerical control floor type boring and milling machine, the saddle inner surface of workpiece 5 is carried out boring processing, two workpiece of a boring.Because the saddle endoporus is longer, so the amount of feeding and bite are unsuitable excessive during boring.
The 3rd step, boring inclined tube endoporus: after the saddle inner surface machines, as Fig. 2, the rotary table of numerical control floor type boring and milling machine is rotated counterclockwise 45 °, adjust the main-shaft axis of numerical control floor type boring and milling machine and the inclined tube endoporus dead in line of workpiece 5, change suitable boring head, boring inclined tube endoporus.After boring finishes, rotary table is turned round 90 ° clockwise, process the inclined tube endoporus of another workpiece in the same way.
The 4th goes on foot, mills the inclined tube end face and the conical surface: keep the clamping position of step (3), change φ 63 dish milling cutter three-shaft linkage milling inclined tube end faces and pipe end male cone (strobilus masculinus) (because cutter interference can only be processed inclined tube pipe end male cone (strobilus masculinus) with the mode of three-shaft linkage milling herein).
The 5th step, mill outer surface: as Fig. 3,4, the mode clamping of locating was adopted in workpiece 5 outer surfaces processing, can guarantee that chucking appliance system has enough rigidity, the raising machining accuracy.Workpiece 5 is placed on the clamp body 8, is located by the locating shaft 9 of clamp body 8, and is compressed by second pressing plate 10.With CAM software automated programming, realize can processing half surface to workpiece 5 outer surface three-shaft linkage millings at every turn, after finishing, milling, finally finishes the whole processing of outer surface with second half surface of workpiece Rotate 180 ° milling.
The shape of the finished product safety injection tank tube nozzle of machine-shaping is shown in Fig. 5,6, and it is made up of saddle part 11 and inclined tube part 13, and the saddle outer surface is a surface blending part 12.
Claims (1)
1. the processing method of a safety injection tank tube nozzle is characterized in that carrying out according to following steps:
The first step, line:, on workpiece (5), mark relevant Working position line and datum line, as the foundation of following process according to the design drawing requirement;
Second step, boring saddle endoporus: base plate (1) is placed on the rotary table of numerical control floor type boring and milling machine, movable bearing support (3) is laid and is fixed on the base plate (1), the saddle edge (4) of workpiece (5) is placed on the movable bearing support (3), support with screw jack (2) the inclined tube position of workpiece (5), adjust the interior axially bored line of workpiece (5) level and saddle and overlap, compress with first pressing plate (7) behind workpiece (5) centering with the main-shaft axis of numerical control floor type boring and milling machine; With same movable bearing support and adopt same mounting means go up to install and another workpiece level of centering, require two workpiece to keep same horizontal level at base plate (1);
Boring head (6) is installed on the main shaft of numerical control floor type boring and milling machine, the saddle inner surface of workpiece (5) is carried out boring processing, two workpiece of a boring;
The 3rd step, boring inclined tube endoporus: after the saddle inner surface machines, the rotary table of numerical control floor type boring and milling machine is rotated counterclockwise 45 °, adjust the main-shaft axis of numerical control floor type boring and milling machine and the inclined tube endoporus dead in line of workpiece (5), change suitable boring head, boring inclined tube endoporus; After boring finishes, rotary table is turned round 90 ° clockwise, process the inclined tube endoporus of another workpiece in the same way;
The 4th the step, mill the inclined tube end face and the conical surface: keep the 3rd the step clamping position, replacing dish milling cutter three-shaft linkage milling inclined tube end face and pipe end male cone (strobilus masculinus);
The 5th the step, mill outer surface: workpiece (5) is placed on the clamp body (8), locating shaft (9) location by clamp body (8), and compress by second pressing plate (10), realization is to the milling of workpiece (5) outer surface three-shaft linkage, can process half surface at every turn, after finishing, milling, finally finishes the whole processing of outer surface with second half surface of workpiece Rotate 180 ° milling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101298414A CN101804560B (en) | 2010-03-17 | 2010-03-17 | Processing method of safety injection tank tube nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101298414A CN101804560B (en) | 2010-03-17 | 2010-03-17 | Processing method of safety injection tank tube nozzle |
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| CN101804560A true CN101804560A (en) | 2010-08-18 |
| CN101804560B CN101804560B (en) | 2012-05-09 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446089A1 (en) * | 1990-03-06 | 1991-09-11 | Framatome | Method and apparatus for forming a circular lip around an opening |
| CN1180147A (en) * | 1996-04-19 | 1998-04-29 | 株式会社三键 | Flare-type pipe joint |
| JP2001099975A (en) * | 1999-10-01 | 2001-04-13 | Mitsubishi Heavy Ind Ltd | Pressurized water reactor |
| CN1304979A (en) * | 2000-08-16 | 2001-07-25 | 中国石化集团洛阳石油化工工程公司 | Atomizing feed nozzle for petroleum processing |
| US20030075622A1 (en) * | 2001-10-05 | 2003-04-24 | Hiromichi Morita | Injector nozzle and method of manufacturing injector nozzle |
| CN101323077A (en) * | 2007-06-14 | 2008-12-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Restrike nozzle body mechanical workout technique |
-
2010
- 2010-03-17 CN CN2010101298414A patent/CN101804560B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446089A1 (en) * | 1990-03-06 | 1991-09-11 | Framatome | Method and apparatus for forming a circular lip around an opening |
| CN1180147A (en) * | 1996-04-19 | 1998-04-29 | 株式会社三键 | Flare-type pipe joint |
| JP2001099975A (en) * | 1999-10-01 | 2001-04-13 | Mitsubishi Heavy Ind Ltd | Pressurized water reactor |
| CN1304979A (en) * | 2000-08-16 | 2001-07-25 | 中国石化集团洛阳石油化工工程公司 | Atomizing feed nozzle for petroleum processing |
| US20030075622A1 (en) * | 2001-10-05 | 2003-04-24 | Hiromichi Morita | Injector nozzle and method of manufacturing injector nozzle |
| CN101323077A (en) * | 2007-06-14 | 2008-12-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Restrike nozzle body mechanical workout technique |
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| CN101804560B (en) | 2012-05-09 |
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Address after: 264003 Shandong city of Yantai province Hengyuan Economic Development Zone Laishan Road, No. 6 Patentee after: YANTAI TAIHAI MANOIR NUCLEAR EQUIPMENT Co.,Ltd. Address before: 264003 Shandong city of Yantai province Hengyuan Economic Development Zone Laishan Road, No. 6 Patentee before: TAIHAI MANOIR Nuclear Power Equipment Co.,Ltd. |
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Denomination of invention: Processing method of safety injection tank tube nozzle Effective date of registration: 20170809 Granted publication date: 20120509 Pledgee: Bank of Dezhou Limited by Share Ltd. Yantai branch Pledgor: YANTAI TAIHAI MANOIR NUCLEAR EQUIPMENT Co.,Ltd. Registration number: 2017370000113 |
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