CN102777392B - Testing device for oil impeller for supplying oil to two-way thrust bearing of reactor coolant pump - Google Patents
Testing device for oil impeller for supplying oil to two-way thrust bearing of reactor coolant pump Download PDFInfo
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- CN102777392B CN102777392B CN201210306222.7A CN201210306222A CN102777392B CN 102777392 B CN102777392 B CN 102777392B CN 201210306222 A CN201210306222 A CN 201210306222A CN 102777392 B CN102777392 B CN 102777392B
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- reactor coolant
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Abstract
The invention relates to a testing device for an oil impeller for supplying oil to a two-way thrust bearing of a reactor coolant pump. Back-to-back single-row angular contact ball bearings are adopted in the structure, and thus, not only can the axial force under a running condition be borne, but also the smooth centered running of a shafting is ensured; an elastic sleeve pin coupling can be used for adjusting the centering of the shafting, bearing a larger instantaneous overload and buffering shock absorption; a plug of an oil blocking screw plug hole can be used for simulation test of the influence of an oil seal of the reactor coolant pump on the hydraulic performance under different test conditions; a heat conducting cover plate is made of stainless steel conductive to increasing the outward heat radiating speed and ensuring the stability of oil temperature; a working chamber of the oil impeller fully simulates the structural design of an actual working condition of the reactor coolant pump, so that accurate and reliable hydraulic performance test can be ensured. The testing device is simple in structure, convenient to dismount and mount, strong in adaptability, suitable for testing the hydraulic performances of oil impellers for different-order reactor coolant pump units and examining the influence of the oil seal on the hydraulic performance.
Description
Technical field: the present invention relates to the oily impeller testing apparatus structure of core main pump doubledirection thrust bearing fuel feeding.
Background technique: core main pump doubledirection thrust bearing fuel feeding has been mainly used to the hydraulic performance testing experiment of the oily impeller of second-generation reactor coolant pump doubledirection thrust bearing fuel feeding with oily impeller testing apparatus.Doubledirection thrust bearing is the critical piece that second-generation reactor coolant pump bears axial force, the economic benefit of its normal operation whether direct relation nuclear power station.Oil impeller rotates with axle system, is the fuel feeding such as the main thrust watt of thrust-bearing, secondary thrust bearing shoe valve, forms oil film when making it operate, and prevents the dry friction of main thrust watt, secondary thrust bearing shoe valve and thrust disc and damages bearing.At present, second-generation reactor coolant pump is the equipment uniquely not realizing in China's nuclear island of nuclear power station domesticizing, and the production domesticization of doubledirection thrust bearing will promote the localization process of core main pump greatly.Current, doubledirection thrust bearing manufacturing technology is developed country's monopolizations such as America and Europe always, and the full working scope of the complete simulated oil impeller of the present invention is tested, and the production domesticization for doubledirection thrust bearing provides safeguard by the success of the test of oily impeller.In addition, country is devoted to exploitation three generations shaft seal core main pump, and roughly the same, this device is equally applicable to the test requirements document of three generations's shaft seal core main pump oil impeller for structure and second-generation reactor coolant pump.
Summary of the invention: the oily impeller testing apparatus of core main pump doubledirection thrust bearing fuel feeding that the object of the invention is openly a kind of function admirable, good stability.Technological scheme of the present invention is: the oily impeller testing apparatus of a kind of core main pump doubledirection thrust bearing fuel feeding, shrunk-in shaft (2) is installed on base (1) through the inner ring of back-to-back single-row angular contact ball bearing (6), shrunk-in shaft (2) and base (1) adopt round nut (7) tightly, oil stator (5) is incorporated on base (1) by socket head screw handle, shell (3) and base (1) assemble for sealing surface and adopt sealer bonding, shell (3) and base (1) are connected by 12 hexagon head bolts (8) locks, shell (3) and oily stator (5) are separated out snout cavity and the outlet plenum of lubricant oil, on subjects oil impeller (4) and the exhaust bolt pallet cylindrical that is respectively installed to shrunk-in shaft (2) and interior disk, bezel ring, (10) is closely joined with the outer shroud of upper corners contact ball bearing (6), by 16 hexagon head bolts, being incorporated into, shell (3) is upper closes snout cavity, top cover (11) and bezel ring, (10) coordinate for sealing surface and adopt sealer bonding, reinforced seal (13) is installed in top cover (11) upper recess, and compressed by the gland (14) being positioned at top cover (11) groove upper end, bleed screw (12) is tightened in the tapped hole of top cover (11) outer ramp, electric machine support (18) is positioned on top cover (11), for supporting motor (20), a pair rubbercushioned sleeve bearing coupling (19) is installed between motor (20) output shaft and shrunk-in shaft (2), the stifled whelk plug (15) of base (1) inner chamber installation testing, heat conducting cover plate (16) the sealed bottom oil pocket of oil drain plug (17) has been installed in employing.
Apparatus of the present invention consider the hydraulic performance of oily impeller under full working scope, different oily impeller (4) can be changed and carry out testing property, shell (3) is provided with two oil inlet holes (3-1) and 1 oil outlet (3-2) respectively, ensure that the true operating conditions of core main pump oil impeller.
The invention has the beneficial effects as follows:
(1) the full working scope condition Imitating doubledirection thrust bearing fuel feeding hydraulic performance of oily impeller is tested.
(2) the present invention's replaceable testpieces oil impeller, tests the hydraulic performance of the oily impeller of different magnitude core main pump unit (as: the oily impeller of 300MW and 1000MW core main pump unit).
(3) device cavity of resorption uses the capping of stainless steel heat conducting cover plate, can strengthen external heat dispersion, avoids local oil overheating phenomenon.
(4) coupling of shaft system uses elastic sleeve page of the declaration form axial organ to realize moment of torsion transmission, also serves the centering of axle system simultaneously, bears the effect of instantaneous larger load and buffering absorbing.
(5) cavity of resorption of base uses stifled whelk to fill in row shutoff, by testing under different working condition, determines the impact of oil seal on oily impeller hydraulic performance.
The present invention adopts back-to-back single-row angular contact ball bearing (6) to carry larger axis under Operation Conditions to power, and ensure the centering smooth running of axle system, the active chamber of testpieces oil impeller (4) simulates the actual conditions structural design of core main pump completely, the accuracy of the hydraulic performance test of oily impeller (4) can be ensured, the shutoff in stifled whelk plug (15) hole can at different tests condition Imitating test core main pump oil seal on the impact of hydraulic performance, heat conducting cover plate (15) adopts corrosion resistant plate to be conducive to the speed strengthening external distribute heat, guarantee the stability of oil temperature.
The present invention is the hydraulic performance considering oily impeller under full working scope, the different magnitude core main pump oily impeller of unit (4) can be changed and carry out testing property, shell (3) is provided with two outer oil inlet holes (3-1) and 1 oil outlet (3-2) respectively, ensure that the prototype operating conditions of core main pump oil impeller, test result is accurately and reliably, applied widely.
Accompanying drawing explanation
Fig. 1 is the total sectional view of testing apparatus
Fig. 2 is shell oil inlet sectional view
Embodiment
As shown in Figure 1, the oily impeller testing apparatus of a kind of core main pump doubledirection thrust bearing fuel feeding, shrunk-in shaft 2 is installed on base 1 through the inner ring of back-to-back single-row angular contact ball bearing 6, shrunk-in shaft 2 and base 1 adopt round nut 7 tight, oil stator 5 is incorporated on base 1 by socket head screw handle, shell 3 and base 1 assemble for sealing surface and adopt sealer bonding, shell 3 is connected locking with base 1 by 12 hexagon head bolts 8, shell 3 and oily stator 5 are separated out snout cavity and the outlet plenum of lubricant oil, on subjects oil impeller 4 and the exhaust bolt pallet cylindrical that is respectively installed to shrunk-in shaft 2 and interior disk, bezel ring, 10 is closely joined with the outer shroud of upper corners contact ball bearing 6, snout cavity is closed being incorporated on shell 3 by 16 hexagon head bolts, top cover 11 and bezel ring, 10 coordinate for sealing surface and adopt sealer bonding, reinforced seal 13 is installed in top cover 11 upper recess, and compressed by the gland 14 being positioned at top cover 11 groove upper end, bleed screw 12 is tightened in the tapped hole of top cover 11 outer ramp, electric machine support 18 is positioned on top cover 11, for supporting motor 20, a pair rubbercushioned sleeve bearing coupling 19 is installed between motor 20 output shaft and shrunk-in shaft 2, the stifled whelk plug 15 of base 1 inner chamber installation testing, adopt the heat conducting cover plate 16 sealed bottom oil pocket having installed oil drain plug 17.
Oil impeller is Replacement Part, a pair rubbercushioned sleeve bearing coupling is installed between motor output shaft and shrunk-in shaft, the centering of coupling adjustable axle system, bear the suction of easing up of larger momentary overload and shake, the stifled whelk plug of base intracavity installation testing, adopt the heat conducting cover plate sealed bottom oil pocket having installed oil drain plug, externally timely distribute heat under working state, stifled whelk plug uses under different tests condition, and under actual conditions is determined in contrast, oil seal is on the impact of oily impeller hydraulic performance.
The present invention is the hydraulic performance considering oily impeller under full working scope, and can change the oily impeller of different magnitude core main pump unit and carry out testing property, shell is provided with two outer oil inlet holes and an oil outlet respectively.
Claims (1)
1. the oily impeller testing apparatus of core main pump doubledirection thrust bearing fuel feeding, it is characterized in that: shrunk-in shaft (2) is installed on base (1) through the inner ring of back-to-back single-row angular contact ball bearing (6), shrunk-in shaft (2) and base (1) adopt round nut (7) tightly, oil stator (5) is incorporated on base (1) by socket head screw handle, shell (3) and base (1) assemble for sealing surface and adopt sealer bonding, shell (3) and base (1) are connected by 12 hexagon head bolts (8) locks, shell (3) and oily stator (5) are separated out snout cavity and the outlet plenum of lubricant oil, on subjects oil impeller (4) and the exhaust bolt pallet cylindrical that is respectively installed to shrunk-in shaft (2) and interior disk, bezel ring, (10) closely cooperates with the outer shroud of upper corners contact ball bearing (6), by 16 hexagon head bolts, being incorporated into, shell (3) is upper closes snout cavity, top cover (11) and bezel ring, (10) coordinate for sealing surface and adopt sealer bonding, reinforced seal (13) is installed in top cover (11) upper recess, and compressed by the gland (14) being positioned at top cover (11) groove upper end, bleed screw (12) is tightened in the tapped hole of top cover (11) outer ramp, electric machine support (18) is positioned on top cover (11), for supporting motor (20), a pair rubbercushioned sleeve bearing coupling (19) is installed between motor (20) output shaft and shrunk-in shaft (2), the stifled whelk plug (15) of base (1) inner chamber installation testing, heat conducting cover plate (16) the sealed bottom oil pocket of oil drain plug (17) has been installed in employing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306222.7A CN102777392B (en) | 2012-08-27 | 2012-08-27 | Testing device for oil impeller for supplying oil to two-way thrust bearing of reactor coolant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306222.7A CN102777392B (en) | 2012-08-27 | 2012-08-27 | Testing device for oil impeller for supplying oil to two-way thrust bearing of reactor coolant pump |
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| Publication Number | Publication Date |
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| CN102777392A CN102777392A (en) | 2012-11-14 |
| CN102777392B true CN102777392B (en) | 2015-03-11 |
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| CN201210306222.7A Active CN102777392B (en) | 2012-08-27 | 2012-08-27 | Testing device for oil impeller for supplying oil to two-way thrust bearing of reactor coolant pump |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
| CN107588019A (en) * | 2016-07-08 | 2018-01-16 | 华电宁夏灵武发电有限公司 | A kind of air cooling blower fan and the method for manufacturing air cooling blower fan |
| CN107795494A (en) * | 2016-09-05 | 2018-03-13 | 沈阳鼓风机集团核电泵业有限公司 | Large-scale oil-lubricated bearing fuel feeding spiral pump test device |
| CN108760156B (en) * | 2018-07-25 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Nuclear self-circulation oil pump and oil mechanical sealing performance test device for main pump |
| CN113532769B (en) * | 2021-07-05 | 2022-11-25 | 哈尔滨电气动力装备有限公司 | Nuclear power station nuclear main pump seal chamber water pressure experiment method |
| CN115628218A (en) * | 2022-10-21 | 2023-01-20 | 合肥裕升热工技术有限公司 | Circulating pump for lead-based reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1045149A2 (en) * | 1999-04-13 | 2000-10-18 | Pierburg Aktiengesellschaft | Coolant pump |
| CN101649833A (en) * | 2009-09-08 | 2010-02-17 | 合肥通用机械研究院 | Mechanical seal test device for nuclear main pump |
| CN202811397U (en) * | 2012-08-27 | 2013-03-20 | 哈尔滨电气动力装备有限公司 | Oil impeller test device for nuclear main pump bidirectional thrust bearing oil supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690612A (en) * | 1985-08-01 | 1987-09-01 | Westinghouse Electric Corp | Nuclear reactor coolant pump impeller/shaft assembly |
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2012
- 2012-08-27 CN CN201210306222.7A patent/CN102777392B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1045149A2 (en) * | 1999-04-13 | 2000-10-18 | Pierburg Aktiengesellschaft | Coolant pump |
| CN101649833A (en) * | 2009-09-08 | 2010-02-17 | 合肥通用机械研究院 | Mechanical seal test device for nuclear main pump |
| CN202811397U (en) * | 2012-08-27 | 2013-03-20 | 哈尔滨电气动力装备有限公司 | Oil impeller test device for nuclear main pump bidirectional thrust bearing oil supply |
Non-Patent Citations (2)
| Title |
|---|
| 推力轴承试验台数据采集系统的研究;谢明春等;《太原科技大学学报》;20060930;第27卷;第30-32页 * |
| 浅谈压水堆核电站主泵;蔡龙等;《水泵技术》;20070831(第4期);第1-5页 * |
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| CN102777392A (en) | 2012-11-14 |
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