CN102777392A - 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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- CN102777392A CN102777392A CN2012103062227A CN201210306222A CN102777392A CN 102777392 A CN102777392 A CN 102777392A CN 2012103062227 A CN2012103062227 A CN 2012103062227A CN 201210306222 A CN201210306222 A CN 201210306222A CN 102777392 A CN102777392 A CN 102777392A
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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 examine main pump doubledirection thrust bearing fuel feeding with oily impeller testing apparatus structure.
Background technique: nuclear main pump doubledirection thrust bearing fuel feeding mainly was used for accomplishing two generations with oily impeller testing apparatus and adds and examine the hydraulic performance testing experiment of main pump doubledirection thrust bearing fuel feeding with oily impeller.Doubledirection thrust bearing is to add the nuclear main pump two generations to bear the critical piece of axial force the economic benefit of the whether normal direct relation nuclear power station of its operation.The oil impeller rotates with axle system, for fuel feeding such as the main thrust of thrust-bearing watt, secondary thrust bearing shoe valves, forms oil film when making its running, prevents the dry friction of main thrust watt, secondary thrust bearing shoe valve and thrust disc and damages bearing.At present, it is unique equipment of not realizing production domesticization in China's nuclear island of nuclear power station that two generations added the nuclear main pump, and the production domesticization of doubledirection thrust bearing will promote to examine the localization process of main pump greatly.Current, the doubledirection thrust bearing manufacturing technology is developed country's monopolizations such as America and Europe always, and the full operating mode of the complete simulated oil impeller of the present invention makes an experiment, and the success of the test of oily impeller will provide safeguard for the production domesticization of doubledirection thrust bearing.In addition, country is devoted to develop three generations's axle envelope nuclear main pump, and structure and two generations add the nuclear main pump roughly the same, and this device is equally applicable to the test requirements document of three generations's axle envelope nuclear main pump oil impeller.
Summary of the invention: the nuclear main pump doubledirection thrust bearing fuel feeding that the objective of the invention is to disclose a kind of function admirable, good stability is with oily impeller testing apparatus.Technological scheme of the present invention is: a kind of nuclear main pump doubledirection thrust bearing fuel feeding is with oily impeller testing apparatus; The interior ring that shrunk-in shaft (2) passes back-to-back single-row angular contact ball bearing (6) is installed on the base (1); Shrunk-in shaft (2) and base (1) adopt round nut (7) tightly; Oil stator (5) is incorporated on the base (1) through the socket head screw handle; Shell (3) assembles for sealing surface with base (1) and adopts sealer bonding, and shell (3) is connected locking with base (1) by 12 hexagon head bolts (8), and shell (3) and oily stator (5) are separated out the snout cavity and the outlet plenum of lubricant oil; Subjects oil impeller (4) and exhaust bolt are respectively installed on the pallet cylindrical and interior disk of shrunk-in shaft (2); Bezel ring, (10) is closely joined with the outer shroud of upper corners contact ball bearing (6), goes up the sealing snout cavity through 16 hexagon head bolts being incorporated into shell (3), and top cover (13) cooperates for sealing surface with bezel ring, (10) and adopts sealer bonding; Reinforced seal (13) is installed in the groove of top cover (11) upper end; And compress by the gland (14) that is positioned at top cover (11) groove upper end, bleed screw (12) tightens in the tapped hole of top cover (11) outer ramp, and electric machine support (18) is positioned on the top cover (11); Be used to support motor (20); A pair of rubbercushioned sleeve bearing coupling (19) is installed between motor (20) output shaft and the shrunk-in shaft (2), and base (1) inner chamber installation testing is adopted heat conducting cover plate (16) the sealed bottom oil pocket of oil drain plug (17) has been installed with stifled whelk plug (15).
Apparatus of the present invention are to consider the hydraulic performance of oily impeller under the full operating mode; Can change different oily impellers (4) and carry out testing property; Shell (3) is provided with two oil inlet holes (3-1) and 1 oil outlet (3-2) respectively, has guaranteed the true operating conditions of nuclear main pump oil impeller.
The invention has the beneficial effects as follows:
(1) simulation doubledirection thrust bearing fuel feeding is tested with the hydraulic performance of oily impeller under the full working condition.
(2) the replaceable testpieces oil of the present invention impeller is tested the hydraulic performance of different magnitude nuclear main pump units with oily impeller (as: 300MW and 1000MW nuclear main pump unit are used oily impeller).
(3) the device cavity of resorption uses the capping of stainless steel heat conducting cover plate, can strengthen external heat dispersion, has avoided local oil temperature superheating phenomenon.
(4) axle system connects the transmission of use elastic sleeve page of the declaration form axial organ realization moment of torsion, has also played the centering of axle system, the effect of bearing instantaneous load greatly and cushioning absorbing simultaneously.
(5) cavity of resorption of base uses stifled whelk to fill in capable shutoff, can confirm the influence of oil seal to oily impeller hydraulic performance through test under different working conditions.
The present invention adopts back-to-back single-row angular contact ball bearing (6) to carry larger axis under the running operating mode to power; And the centering smooth running of assurance axle system; The active chamber of testpieces oil impeller (4) is simulated the actual conditions structural design of nuclear main pump fully; Can guarantee the accuracy of the hydraulic performance test of oily impeller (4); The shutoff in stifled whelk plug (15) hole can simulation test nuclear main pump oil seal be to the influence of hydraulic performance under the different tests condition, and heat conducting cover plate (15) employing corrosion resistant plate helps strengthening the speed of external distribute heat, guarantees the stability of oil temperature.
The present invention is a hydraulic performance of considering oily impeller under the full operating mode; Can change different magnitude nuclear main pump units and carry out testing property with oily impeller (4); Shell (3) is provided with two outer oil inlet holes (3-1) and 1 oil outlet (3-2) respectively; Guaranteed the prototype operating conditions of nuclear main pump oil impeller, test result accurately and reliably, and is applied widely.
Description of drawings
Fig. 1 is the total sectional view of testing apparatus
Fig. 2 is a shell oil inlet sectional view
Embodiment
As shown in Figure 1, a kind of nuclear main pump doubledirection thrust bearing fuel feeding is with oily impeller testing apparatus, and the interior ring that shrunk-in shaft 2 passes back-to-back single-row angular contact ball bearing 6 is installed on the base 1; Shrunk-in shaft 2 and base 1 adopt round nut 7 tight, and being incorporated on the base 1, shell 3 and base 1 are for the sealing surface assembling and adopt sealer bonding through socket head screw for oily stator 5; Shell 3 is connected locking with base 1 by 12 hexagon head bolts 8; Shell 3 and oily stator 5 are separated out the snout cavity and the outlet plenum of lubricant oil, and subjects oil impeller 4 is respectively installed on the pallet cylindrical and interior disk of shrunk-in shaft 2 with exhaust bolt, and bezel ring, 10 is closely joined with the outer shroud of upper corners contact ball bearing 6; Seal snout cavity through 16 hexagon head bolts being incorporated on the shell 3; Top cover 13 cooperates for sealing surface with bezel ring, 10 and adopts sealer bonding, and reinforced seal 13 is installed in the top cover 11 upper end grooves, and is compressed by the gland 14 that is positioned at top cover 11 grooves upper end; Bleed screw 12 tightens in the tapped hole of top cover 11 outer ramp; Electric machine support 18 is positioned on the top cover 11, is used to support motor 20, and a pair of rubbercushioned sleeve bearing coupling 19 is installed between motor 20 output shafts and the shrunk-in shaft 2; Base 1 inner chamber installation testing is adopted the heat conducting cover plate 16 sealed bottom oil pockets that oil drain plug 17 has been installed with stifled whelk plug 15.
The oil impeller is a Replacement Part; A pair of rubbercushioned sleeve bearing coupling is installed between motor output shaft and the shrunk-in shaft, the centering of coupling adjustable axle system, is born big momentary overload and buffering absorbing, the base intracavity installation testing is with stifled whelk plug; The heat conducting cover plate sealed bottom oil pocket of oil drain plug has been installed in employing; To the timely distribute heat in outside, stifled whelk plug is under the different tests condition, to use under the working state, and contrast confirms that oil seal is to the influence of oily impeller hydraulic performance under the actual conditions.
The present invention is a hydraulic performance of considering oily impeller under the full operating mode, can change different magnitude nuclear main pump units and carry out testing property with oily impeller, and shell is provided with two outer oil inlet holes and an oil outlet respectively.
Claims (1)
1. a nuclear main pump doubledirection thrust bearing fuel feeding is with oily impeller testing apparatus; It is characterized in that: the interior ring that shrunk-in shaft (2) passes back-to-back single-row angular contact ball bearing (6) is installed on the base (1); Shrunk-in shaft (2) and base (1) adopt round nut (7) tightly; Oil stator (5) is incorporated on the base (1) through the socket head screw handle; Shell (3) assembles for sealing surface with base (1) and adopts sealer bonding, and shell (3) is connected locking with base (1) by 12 hexagon head bolts (8), and shell (3) and oily stator (5) are separated out the snout cavity and the outlet plenum of lubricant oil; Subjects oil impeller (4) and exhaust bolt are respectively installed on the pallet cylindrical and interior disk of shrunk-in shaft (2); Bezel ring, (10) is closely joined with the outer shroud of upper corners contact ball bearing (6), goes up the sealing snout cavity through 16 hexagon head bolts being incorporated into shell (3), and top cover (13) cooperates for sealing surface with bezel ring, (10) and adopts sealer bonding; Reinforced seal (13) is installed in the groove of top cover (11) upper end; And compress by the gland (14) that is positioned at top cover (11) groove upper end, bleed screw (12) tightens in the tapped hole of top cover (11) outer ramp, and electric machine support (18) is positioned on the top cover (11); Be used to support motor (20); A pair of rubbercushioned sleeve bearing coupling (19) is installed between motor (20) output shaft and the shrunk-in shaft (2), and base (1) inner chamber installation testing is adopted heat conducting cover plate (16) the sealed bottom oil pocket of oil drain plug (17) has been installed with stifled whelk plug (15).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102777392A true CN102777392A (en) | 2012-11-14 |
| CN102777392B CN102777392B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (5)
| 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 |
| CN108760156A (en) * | 2018-07-25 | 2018-11-06 | 哈尔滨电气动力装备有限公司 | The experimental rig of core main pump self-loopa oil pump and oily mechanical sealing performance |
| CN113532769A (en) * | 2021-07-05 | 2021-10-22 | 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 |
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| JPH0583756B2 (en) * | 1985-08-01 | 1993-11-29 | Westinghouse Electric Corp | |
| 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 |
-
2012
- 2012-08-27 CN CN201210306222.7A patent/CN102777392B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0583756B2 (en) * | 1985-08-01 | 1993-11-29 | Westinghouse Electric Corp | |
| 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 |
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| Title |
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| 蔡龙等: "浅谈压水堆核电站主泵", 《水泵技术》 * |
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Cited By (7)
| 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 |
| CN108760156A (en) * | 2018-07-25 | 2018-11-06 | 哈尔滨电气动力装备有限公司 | The experimental rig of core main pump self-loopa oil pump and oily mechanical sealing performance |
| 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 |
| CN113532769A (en) * | 2021-07-05 | 2021-10-22 | 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102777392B (en) | 2015-03-11 |
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