CN205036636U - Main circulating sodium pump hydrostatic bearing test pump exports pipeline - Google Patents
Main circulating sodium pump hydrostatic bearing test pump exports pipeline Download PDFInfo
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- CN205036636U CN205036636U CN201520629371.6U CN201520629371U CN205036636U CN 205036636 U CN205036636 U CN 205036636U CN 201520629371 U CN201520629371 U CN 201520629371U CN 205036636 U CN205036636 U CN 205036636U
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Abstract
The utility model discloses a main circulating sodium pump hydrostatic bearing test pump exports pipeline, main circulating sodium pump hydrostatic bearing test pump includes pump shaft, impeller, stator cover and hydrostatic bearing, the vertical surface of water that stretches into a pond downwards of pump shaft, hydrostatic bearing cup joints the radial outside of pump shaft, the impeller cup joints the bottom of pump shaft, the stator cover cup joints the radial outside of impeller, and with hydrostatic bearing's bottom surface is fixed, the bottom of export pipeline and stator cover is connected, and the pipeline be should export and the stator socket pipe that connects gradually, level pipe were under water included, return bend, vertical pipe, return bend on water and level pipe on water under water, stator socket pipe connects the stator cover, level on water pipe along the platform level in pond sets up, the exit of level on water pipe is equipped with outlet valve, the intraductal turbine flowmeter that is equipped with of level on water, level on water pipe with return bend junction on water is equipped with pressure sensor.
Description
Technical field
The utility model relates to a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline in nuclear power equipment field.
Background technique
Major cycle sodium pump is one of key core equipment of row ripple heap, and hydrostatic bearing is the critical component constituent element of major cycle sodium pump, and this hydrostatic bearing is related to master and follows sodium pump reliability of operation.The major cycle sodium pump hydrostatic bearing of current China is all by external import, and in order to strengthen the development of China's nuclear power production domesticization, save the resource of national foreign exchange, carrying out production domesticization to major cycle sodium pump hydrostatic bearing is inexorable trend.
Therefore very necessary by the performance of experimental study hydrostatic bearing.Major cycle sodium pump hydrostatic bearing testing apparatus for studying economy in the static pressure chamber of hydrostatic bearing, throttle chink internal pressure falls and the bearing capacity of hydrostatic bearing and the relation of eccentricity.
The domestic report not yet having major cycle sodium pump hydrostatic bearing testing apparatus.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline is provided, its make to the rate of discharge of major cycle sodium pump hydrostatic bearing test pump and outlet pressure carry out accurately being detected as safely in order to may, improve the Security of test.
A kind of technological scheme realizing above-mentioned purpose is: a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline; Major cycle sodium pump hydrostatic bearing test pump comprises pump shaft, impeller, guide blade sleeve and hydrostatic bearing, described pump shaft stretches into the water surface in a pond straight down, described hydrostatic bearing is socketed in the radial outside of described pump shaft, described impeller set is connected on the bottom of described pump shaft, described guide blade sleeve is socketed in the radial outside of described impeller, and fix with the bottom surface of described hydrostatic bearing, described export pipeline is connected with the bottom of guide blade sleeve;
This export pipeline comprise connect successively guide blade sleeve adapter, submerged level pipe, bend pipe, vertical tube, bend pipe waterborne and horizontal pipe waterborne under water, described guide blade sleeve adapter connects described guide blade sleeve, described horizontal pipe waterborne is arranged along the plateau levels in described pond, and the outlet port of described horizontal pipe waterborne is provided with outlet valve;
Be provided with turbine flowmeter in described horizontal pipe waterborne, described horizontal pipe waterborne and described bend pipe joint waterborne are provided with pressure transducer.
Further, between described guide blade sleeve adapter and described submerged level pipe, described submerged level pipe and described under water between bend pipe, between described bend pipe under water and described vertical tube, between described vertical tube and described bend pipe waterborne, and all to be connected by anchor ear between described bend pipe waterborne and described horizontal pipe waterborne.
Further, the outer circle wall of described horizontal pipe waterborne is provided with anchor ear.
Further, horizontal pipe support is provided with between described horizontal pipe waterborne and the platform in described pond.
Further, described export pipeline is also provided with the support under water described guide blade sleeve adapter, described submerged level pipe, described bend pipe under water and described vertical tube are connected and fixed.
6. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 5, is characterized in that: described support is under water made up of channel-section steel
Have employed the technological scheme of a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline of the present utility model, wherein major cycle sodium pump hydrostatic bearing test pump comprises pump shaft, impeller, guide blade sleeve and hydrostatic bearing, described pump shaft stretches into the water surface in a pond straight down, described hydrostatic bearing is socketed in the radial outside of described pump shaft, described impeller set is connected on the bottom of described pump shaft, described guide blade sleeve is socketed in the radial outside of described impeller, and fix with the bottom surface of described hydrostatic bearing, described export pipeline is connected with the bottom of guide blade sleeve; This export pipeline comprise connect successively guide blade sleeve adapter, submerged level pipe, bend pipe, vertical tube, bend pipe waterborne and horizontal pipe waterborne under water, described guide blade sleeve adapter connects described guide blade sleeve, described horizontal pipe waterborne is arranged along the plateau levels in described pond, and the outlet port of described horizontal pipe waterborne is provided with outlet valve; Be provided with turbine flowmeter in described horizontal pipe waterborne, described horizontal pipe waterborne and described bend pipe joint waterborne are provided with pressure transducer.Its technique effect is: being measured the economy in the static pressure chamber of hydrostatic bearing by major cycle sodium pump hydrostatic bearing test pump simultaneously, throttle chink internal pressure fall and the relation of the bearing capacity of hydrostatic bearing and eccentricity time, its make to the rate of discharge of major cycle sodium pump hydrostatic bearing test pump and outlet pressure carry out accurately being detected as safely in order to may, improve the Security of test.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hydrostatic bearing in major cycle sodium pump.
Fig. 2 tests pump structure schematic diagram in a kind of major cycle sodium pump hydrostatic bearing testing apparatus of the present utility model.
Fig. 3 is the structural representation of a kind of major cycle sodium pump hydrostatic bearing testing apparatus of the present utility model.
Fig. 4 is the plan view of a kind of major cycle sodium pump hydrostatic bearing testing apparatus of the present utility model.
Embodiment
Refer to Fig. 1 to Fig. 4, inventor of the present utility model, in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Hydrostatic bearing 1 in major cycle sodium pump comprises bearing support 11, and correspondence is positioned at upper bearing (metal) flange 12 and the lower bearing flange 13 at bearing support about 11 two ends.Wherein upper bearing (metal) flange 12 is provided with the upper bolt hole 121 arranged around upper bearing (metal) flange 12 circumference, and a Leak hole 122.Leak hole 122 is positioned at the radially inner side of bolt hole 121.Lower bearing flange 13 is provided with the lower bolt hole 131 arranged around lower bearing flange 13 circumference.The inner peripheral wall of bearing support 11, is provided with axle offset circular groove 14 and throttling groove 15 from top to bottom successively.Bearing support 11 is also provided with the first radial direction through hole 16 and the second radial direction through hole 17 be communicated with axle offset circular groove 14.The position of the first radial direction through hole 16 is higher than the second radial direction through hole 17.First radial direction through hole 16 and the second radial direction through hole 17 correspondence are positioned at the radial both sides of bearing support 11.The outer circle wall of bearing support 11 is provided with Pressure Drop spiral chute 18.Lower bearing flange 13 is also provided with radial back pressure through hole 19.
A kind of major cycle sodium pump testing apparatus of the present utility model comprises test pump 2, export pipeline 3, leakage line 4 and pond 9.
Test pump 2 comprises pump shaft 21 and impeller 22, and from top to bottom, vertically stretch in pond 9, impeller 22 is socketed in the bottom of pump shaft 21 to pump shaft 21.The water intake being positioned at radial center bottom impeller 22 connects reducing pipe 23, and reducing pipe 23 is for importing test pump 2 by the water in pond 9.The radial outside socket guide blade sleeve 24 of impeller 22, the bottom connection outlet pipeline 3 of guide blade sleeve 24.The water flowed out from the water outlet of impeller 22 radial outside flows into export pipeline 3 by guide blade sleeve 24, discharges test pump 2.
Hydrostatic bearing 1 is socketed with pump shaft 21 above impeller 22.Lower shaft sleeve 211 is provided with between hydrostatic bearing 1 and pump shaft 21.The underrun of hydrostatic bearing 1 is positioned at the lower bolt hole 131 on the lower bearing flange 13 of hydrostatic bearing 1 and screw bolt and nut, fixes with guide blade sleeve 24.Throttling groove 15 circular contact of Lower shaft sleeve 211 and hydrostatic bearing 1, to reduce the leaking medium leaked from the throttle chink 62 between hydrostatic bearing 1 and Lower shaft sleeve 211, i.e. the amount of water.Form static pressure chamber 61 between the end face of impeller 22 and the bottom surface of hydrostatic bearing 1, in static pressure chamber 61, be provided with the some eccentric masss 221 on the end face being positioned at impeller 22.The position of eccentric mass 221 is adjustable.The end face of eccentric mass 221 is separated with hydrostatic bearing 1 bottom surface.Radial back pressure through hole 19 on lower bearing flange 13 is through with static pressure chamber 61.
Eccentric mass 221 is for detecting the bearing capacity of hydrostatic bearing 1.
A back pressure detector 71 is provided with in radial back pressure through hole 19, back pressure detector 71 connects back pressure sounding pipe 72, back pressure sounding pipe 72 stretches out the water surface in pond 9, one end that back pressure sounding pipe 72 stretches out the water surface in pond 9 is provided with back pressure measurement ball valve 73, and back pressure detector 71, back pressure sounding pipe 72 and back pressure measure ball valve composition back pressure measuring device.For measuring the back pressure in static pressure chamber 61.
The throttle chink 62 of annular is formed between the throttling groove 15 of hydrostatic bearing 1 and Lower shaft sleeve 211.The radial both sides of the Pressure Drop spiral chute 18 of hydrostatic bearing 1 are respectively provided with a pressure interface 74 contour with throttling groove 15, sounding pipe 75 falls in pressure interface 74 Bonding pressure, pressure measuring tube 75 stretches out the water surface, the emersed one end of pressure measuring tube 75 is provided with pressure drop measurement ball valve 76, for measuring the Pressure Drop in throttle chink 62.Measuring device falls in pressure interface 74, pressure drop measurement pipe 75 and pressure drop measurement ball valve 76 decomposition pressure.
Form axle offset chamber 63 between the axle offset circular groove 14 of Lower shaft sleeve 211 and hydrostatic bearing 1, the first radial direction through hole 16 of hydrostatic bearing 1 is communicated with axle offset chamber 63 with the second radial direction through hole 17.Shaft displacement probe 77 is provided with, for measuring the center displacement of pump shaft 21 in axle offset chamber 63 in first radial direction through hole 16 and the second radial direction through hole 17.
Can be used to change the amount of unbalance of pump shaft 21 by the eccentric mass 221 installing different quality on impeller 22, measure the side-play amount of pump shaft 21 rotating center under different loads condition respectively, be converted into eccentricity.
The top of Lower shaft sleeve 211 is provided with the Upper shaft sleeve 212 be socketed with pump shaft 21.The circumferential part 212b that Upper shaft sleeve 212 is divided into horizontal part 212a and arranges around the excircle of horizontal part 212a bottom surface.Wherein the bottom surface of horizontal part 212a and the water surface in pond 9 contour, the bottom of circumferential part 212b is fixed with the top of Lower shaft sleeve 211 below the water surface in pond 9.A pump shaft chamber is formed between Upper shaft sleeve 212 and pump shaft 21 radial direction.
The radial outside of Upper shaft sleeve 212 is socketed with current stabilization cover 25.The underrun screw of current stabilization cover 25 and the end face of hydrostatic bearing 1 are fixed.In the water surface in pond 9 at the bottom of the end face of current stabilization cover 25.Current stabilization cover 25 ensure that the stability flowed from the leaking medium leaked between hydrostatic bearing 1 and Upper shaft sleeve 211.
The top of hydrostatic bearing 1 is provided with support 26, support 26 is provided with lower support ring 261, is positioned at the lower supporting plate 262 of lower support ring 261 end face radial outside, be positioned at the upper support ring 263 of lower supporting plate 262 end face radial outside, and be positioned at the upper backup pad 264 of support ring 263 end face radial outside.
Wherein the bottom of lower support ring 261 is by screw bolt and nut, and the upper bolt hole 121 of upper bearing (metal) flange 12 is fixed with the end face of hydrostatic bearing 1.The water surface in pond 9 is stretched out at the top of lower support ring 261.Upper backup pad 264 and a support platform are fixed, thus are fixed the position of test pump 2 in the vertical direction.
The end face of lower supporting plate 262 be fixed with one coaxial with support 26, the bearing bracket 27 be socketed with pump shaft 21, bearing bracket 27 is divided into support base plate 271 and is positioned at the rack body 272 on support base plate 271 end face excircle.The end face of support base plate 271 is provided with one block of shrouding 273, make bearing bracket 27, support 26, hydrostatic bearing 1, current stabilization cover 25, between Upper shaft sleeve 212 and pump shaft 21, form the leakage chamber 64 of a top seal, in leakage chamber 64, the height of the water surface is higher than pond 9 water surface, namely in leakage chamber 64 height of the water surface higher than the height of the water surface outside leakage chamber 64.
Leakage chamber 64 connects leakage line 4 by the Leak hole 122 of the upper bearing (metal) flange 12 of hydrostatic bearing 1.Water in leakage chamber 64 can rotate with pump shaft 21 and produces stirring, and in leakage chamber 64, the height of the water surface is higher than the height of the water surface outside leakage chamber 64, and the pressure in leakage chamber 64 raises, and the water in leakage chamber 63 flows out from leakage line 4.
The end face of the rack body 272 of bearing bracket 27 is fixed with a upper bearing (metal) 28 be socketed with pump shaft 21, the excircle of upper bearing (metal) 28 is provided with an annular bearing spider 281, and upper bearing (metal) 28 is fixed on the end face of rack body 272 of bearing bracket 27 by bearing spider 281.SKF---the 7340BCBM bearing that in the present embodiment, upper bearing (metal) 28 adopts.Fixed electrical machinery frame 29 on the end face of bearing spider 281, fixed electrical machinery 20 on the end face of motor rack 29, motor 20 is provided with live axle.The live axle of motor 20 is connected by coupling 213 with between pump shaft 21.
Pump shaft 21 rotation under the driving of motor 20, thus complete the test for hydrostatic bearing 1.
A kind of major cycle sodium pump hydrostatic bearing testing apparatus back pressure detector 71 of the present utility model, back pressure sounding pipe 72 and back pressure measurement ball valve 73 measures the pressure in static pressure chamber 61, the Pressure Drop in throttle chink 62 is measured with pressure interface 74, pressure drop measurement pipe 75 and pressure drop measurement ball valve 76, with shaft displacement probe 77, measure the bearing capacity of hydrostatic bearing 1 and the relation of pump shaft 1 eccentricity, and the detection to hydrostatic bearing 1 lubricant medium amount.
Export pipeline 3 comprise connect successively guide blade sleeve adapter 31, submerged level pipe 32, under water bend pipe 33, vertical tube 34, bend pipe waterborne 35 and horizontal pipe waterborne 36.Guide blade sleeve adapter 31 connects guide blade sleeve 24, between guide blade sleeve adapter 31 and submerged level pipe 32, submerged level pipe 32 and under water between bend pipe 33, under water between bend pipe 33 and vertical tube 34, between vertical tube 34 and bend pipe waterborne 35, and all to be connected by anchor ear between bend pipe waterborne 35 and horizontal pipe waterborne 36.Wherein guide blade sleeve adapter 31, submerged level pipe 32, bend pipe 33 is all positioned at below the water surface in pond 9 under water, vertical tube 34, stretches out the water surface in pond 9 straight up.Bend pipe 35 waterborne and horizontal pipe waterborne 36 are positioned at more than the water surface in pond 9, and the outer circle wall of horizontal pipe 36 waterborne is also provided with anchor ear.Horizontal pipe support 361 is provided with between horizontal pipe 36 waterborne and the platform 91 in pond 9.The end of horizontal pipe 36 waterborne is provided with outlet valve 364.Turbine flowmeter 362 is provided with in horizontal pipe 36 waterborne, for measuring the lubricant medium of hydrostatic bearing 1, i.e. the flow of water.Horizontal pipe 36 waterborne is provided with pressure transducer 363, for measuring the pressure in export pipeline 3 with bend pipe 35 joint waterborne.The effect of horizontal pipe support 361 is to ensure to reduce unnecessary vibration in export pipeline 3 internal pressure and flow measurement process.
Export pipeline 3 also comprises guide blade sleeve adapter 31, submerged level pipe 32, and bend pipe 33 and vertical tube 34 support fixing support under water 39 under water.Support 39 is made up of channel-section steel under water.The effect of support 39 is under water to ensure to reduce unnecessary vibration in export pipeline 3 internal pressure and flow measurement process.
Export pipeline 3 being measured the economy in the static pressure chamber 61 of hydrostatic bearing 1 by test pump 2 simultaneously, throttle chink 62 internal pressure fall and the relation of the bearing capacity of hydrostatic bearing and eccentricity time, make to the rate of discharge of major cycle sodium pump hydrostatic bearing test pump and outlet pressure carry out accurately being detected as safely in order to may, improve the Security of test.
Leakage line 4 comprises the Leak hole adapter 41, the level that are connected with the Leak hole 122 of hydrostatic bearing 1 and floats on blow-by tube 42 on the water surface in pond 9, and transfer tube 43, the subsea end of transfer tube 43 connects Leak hole adapter 41 below the water surface in pond 9, and the end waterborne of transfer tube 43 connects blow-by tube 42 more than the water surface in pond 9.Between Leak hole adapter 41 and transfer tube 43, and all pass through Flange joint between transfer tube 43 and blow-by tube 42.Leakage flow gauge 44 is provided with, for measuring the leakage rate of the leaking medium leaked from the throttle chink 62 between hydrostatic bearing 1 and Lower shaft sleeve 211, because the amount of the water flowing into leakage chamber 64 and flow into leakage chamber 64 must keep balance in blow-by tube 42.The water surface that blow-by tube 42 level floats on pond 9 ensure that the accuracy that leaking medium leakage rate is measured.
A kind of major cycle sodium pump of the utility model hydrostatic bearing testing apparatus is also equipped with isolating transformer (not shown), for controlling motor 20 simultaneously.
A kind of major cycle sodium pump of the utility model hydrostatic bearing testing apparatus, Real-Time Monitoring can be carried out for the back pressure in the static pressure chamber 61 of hydrostatic bearing 1, the bearing capacity of hydrostatic bearing 1 and eccentricity are detected, to the Pressure Drop of the throttle chink 62 between hydrostatic bearing 1 and Lower shaft sleeve 211, and the leakage rate of lubricant medium detects, and ensure the stability of the leakage rate of lubricant medium in testing process; The eccentric shaft displacement of pump shaft 21 is detected.Anchor ear on export pipeline 3, and support 39 reduces the vibration frequency of a kind of major cycle sodium pump of the utility model hydrostatic bearing testing apparatus under water, ensures the accuracy of measurement result.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (6)
1. a major cycle sodium pump hydrostatic bearing test pump export pipeline; Major cycle sodium pump hydrostatic bearing test pump comprises pump shaft, impeller, guide blade sleeve and hydrostatic bearing, described pump shaft stretches into the water surface in a pond straight down, described hydrostatic bearing is socketed in the radial outside of described pump shaft, described impeller set is connected on the bottom of described pump shaft, described guide blade sleeve is socketed in the radial outside of described impeller, and fix with the bottom surface of described hydrostatic bearing, described export pipeline is connected with the bottom of guide blade sleeve, it is characterized in that:
This export pipeline comprise connect successively guide blade sleeve adapter, submerged level pipe, bend pipe, vertical tube, bend pipe waterborne and horizontal pipe waterborne under water, described guide blade sleeve adapter connects described guide blade sleeve, described horizontal pipe waterborne is arranged along the plateau levels in described pond, and the outlet port of described horizontal pipe waterborne is provided with outlet valve;
Be provided with turbine flowmeter in described horizontal pipe waterborne, described horizontal pipe waterborne and described bend pipe joint waterborne are provided with pressure transducer.
2. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 1, it is characterized in that: between described guide blade sleeve adapter and described submerged level pipe, described submerged level pipe and described under water between bend pipe, between described bend pipe under water and described vertical tube, between described vertical tube and described bend pipe waterborne, and all to be connected by anchor ear between described bend pipe waterborne and described horizontal pipe waterborne.
3. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 1, is characterized in that: the outer circle wall of described horizontal pipe waterborne is provided with anchor ear.
4. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 1, is characterized in that: be provided with horizontal pipe support between described horizontal pipe waterborne and the platform in described pond.
5. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 1, is characterized in that: described export pipeline is also provided with the support under water described guide blade sleeve adapter, described submerged level pipe, described bend pipe under water and described vertical tube are connected and fixed.
6. a kind of major cycle sodium pump hydrostatic bearing test pump export pipeline according to claim 5, is characterized in that: described support is under water made up of channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629371.6U CN205036636U (en) | 2015-08-20 | 2015-08-20 | Main circulating sodium pump hydrostatic bearing test pump exports pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629371.6U CN205036636U (en) | 2015-08-20 | 2015-08-20 | Main circulating sodium pump hydrostatic bearing test pump exports pipeline |
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| Publication Number | Publication Date |
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| CN205036636U true CN205036636U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520629371.6U Active CN205036636U (en) | 2015-08-20 | 2015-08-20 | Main circulating sodium pump hydrostatic bearing test pump exports pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223396A (en) * | 2017-12-11 | 2018-06-29 | 中国水利水电科学研究院 | A kind of high-precision water pump bath scaled model experimental device |
-
2015
- 2015-08-20 CN CN201520629371.6U patent/CN205036636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223396A (en) * | 2017-12-11 | 2018-06-29 | 中国水利水电科学研究院 | A kind of high-precision water pump bath scaled model experimental device |
| CN108223396B (en) * | 2017-12-11 | 2024-04-26 | 中国水利水电科学研究院 | High-precision water pump model experimental device |
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