CN208702787U - A kind of damping alloy kingbolt component - Google Patents
A kind of damping alloy kingbolt component Download PDFInfo
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- CN208702787U CN208702787U CN201821325509.3U CN201821325509U CN208702787U CN 208702787 U CN208702787 U CN 208702787U CN 201821325509 U CN201821325509 U CN 201821325509U CN 208702787 U CN208702787 U CN 208702787U
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- kingbolt
- impeller
- damping alloy
- component
- pump housing
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Abstract
A kind of damping alloy kingbolt component, sealing ring and impeller before being arranged in the pump housing, impeller nut is set in impeller, balance hole B is set on impeller, increasing back sealing ring is set on impeller, guide vane and heat screen are set in the pump housing, axis is set in heat screen and impeller, seal with double-cone is set between shield electric machine and the pump housing, and is fixed by damping alloy kingbolt component, suction inlet A is set in pump housing lower part, discharge opening C is set on the right side of the pump housing.The utility model is to medium-high frequency vibration absorbing performance, under the premise of not changing the equipment performance index, decrease shield electric machine is absorbed well is transmitted to the vibration of the medium-high frequency on pump case, vibration-testing is carried out to the reactor coolant pump equipped with the New Damping alloy kingbolt component, the result shows that novel damping alloy kingbolt component, which realizes to absorb well, weakens the effect that the vibration of shield electric machine medium-high frequency is transmitted to pump case, it is applied in nuclear-power reactor coolant pump technical field.
Description
Technical field
The utility model relates to one of nuclear-power reactor coolant pump technical field damping alloy kingbolt components.
Background technique
Currently, reactor coolant pump unit is high temperature and pressure vertical shield pump, Jie of circulating reactor coolant system
Matter spreads out of the high temperature heat of reactor constantly and comes, and carries out heat exchange in steam generator, generates saturated vapor, confession is main and auxiliary
Steam turbine is used, and the medium after heat exchange is returned to reactor, and cooling reactor core guarantees that reactor safety is reliable.Concealment is naval vessel
Key technical index.The weak links such as electromechanical equipment generally existing vibration in China naval vessel is high, dispersion is big, it is hidden to constrain naval vessel
The development of body performance.Reactor coolant pump is one of important key equipment of nuclear power dynamical system, by carrying out damping alloy
The research of kingbolt component reduces by one under the premise of guaranteeing to pump power, electrical, mechanical performance and whole aircraft reliability, maintainability
The medium-high frequency of circuit reactor coolant pump is vibrated, significant to the Stealth Fighter for promoting naval vessel.Therefore, one kind is developed
Damping alloy kingbolt component is always new issue anxious to be resolved.
Utility model content
The purpose of this utility model is to provide a kind of damping alloy kingbolt component, which solves original master
Bolt assembly material is 25CrMoVA, without any damping characteristic problem, is used now to kingbolt unit replacement as resistance
Damping alloy material, for the damping alloy between 20 DEG C -70 DEG C of working temperature, centering high-frequency vibration effectively absorbs attenuation characteristic,
The invention is equipped on reactor coolant pump, and the increasingly harsh stealth requirement in contemporary naval vessel is met.
Purpose of the utility model is realized as follows: a kind of damping alloy kingbolt component, including shield electric machine, damping
Alloy kingbolt component, seal with double-cone, heat screen, the pump housing, guide vane, increasing back sealing ring, axis, impeller, preceding sealing ring, impeller nut,
Sealing ring and impeller before being arranged in the pump housing, are arranged impeller nut in impeller, balance hole B are arranged on impeller, on impeller
Increasing back sealing ring is set, guide vane and heat screen are set in the pump housing, axis is set in heat screen and impeller, in shield electric machine and the pump housing
Between seal with double-cone is set, and fixed by damping alloy kingbolt component, suction inlet A be set in pump housing lower part, on the pump housing right side
Discharge opening C is arranged in side；The damping alloy kingbolt component is made of damping alloy kingbolt, damping alloy main nut,
Damping alloy kingbolt top damping alloy main nut provided circumferentially about.
The utility model is characterized by its structure.Its working principle is that reactor coolant pump under-chassis is embodied
Major electromagnetic exciting force high frequency vibration, optimize the transmission path of exciting force, i.e., in the transmission path of electromagnetic excitation power
On take Optimized Measures, so that its energy is decayed in transmittance process；Its electromagnetic excitation power is by shield electric machine bottom
24 connection damping alloy kingbolt components are transmitted to the under-chassis of the pump housing；Transmitting of the electromagnetic excitation power in kingbolt component
Path is the flange on shield electric machine-damping alloy main nut-damping alloy kingbolt-pump housing, in conjunction with damp alloy material category
Property and launching characteristics to reduce wherein high frequency pumping damping alloy kingbolt component material is changed to damping alloy material
Matter is vibrated in this way pointedly to absorb the medium-high frequency weakened on shield electric machine.
A kind of damping alloy kingbolt component compared with prior art, has to medium-high frequency vibration absorbing performance, is not changing this
Under the premise of equipment performance index, decrease shield electric machine is absorbed well and is transmitted to the vibration of the medium-high frequency on pump case, to new equipped with this
The reactor coolant pump of type damping alloy kingbolt component carries out vibration-testing, the results showed that novel damping alloy kingbolt
Component, which realizes to absorb well, weakens the effect that the vibration of shield electric machine medium-high frequency is transmitted to pump case, and pump case under-chassis is examined at measuring point
The advantages that reducing 2-3dB in the section medium-high frequency 500Hz-8kHz, will be widely used in nuclear-power reactor coolant pump skill
In art field.
Detailed description of the invention
The utility model is described in detail with reference to the accompanying drawings and embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model kingbolt components.
Specific embodiment
Referring to attached drawing, a kind of damping alloy kingbolt component, including it is shield electric machine 1, damping alloy kingbolt component 2, double
Cone sealing 3, heat screen 4, the pump housing 5, guide vane 6, increasing back sealing ring 7, axis 8, impeller 9, preceding sealing ring 10, impeller nut 11, in the pump housing 5
Impeller nut 11 is arranged in sealing ring 10 and impeller 9 before interior setting in impeller 9, balance hole B is arranged on impeller 9, in impeller 9
Guide vane 6 and heat screen 4 is arranged in upper setting increasing back sealing ring 7 in the pump housing 5, and axis 8 is arranged in heat screen 4 and impeller 9, is shielding
Seal with double-cone 3 is set, and fixed by damping alloy kingbolt component 2 between motor 1 and the pump housing 5, is arranged in 5 lower part of the pump housing and inhales
Discharge opening C is arranged in entrance A on the right side of the pump housing 5；The damping alloy kingbolt component 2 is by damping alloy kingbolt 2-1, resistance
Damping alloy main nut 2-2 composition, in the top damping alloy kingbolt 2-1 damping alloy main nut 2-2 provided circumferentially about.
A kind of working principle of damping alloy kingbolt component is that reactor coolant pump under-chassis is embodied
The high frequency of major electromagnetic exciting force vibrates, and optimizes the transmission path of exciting force, i.e., on the transmission path of electromagnetic excitation power
Optimized Measures are taken, its energy is made to be decayed in transmittance process；Its electromagnetic excitation power is two by 1 bottom of shield electric machine
14 connection damping alloy kingbolt components 2 are transmitted to the under-chassis of the pump housing 5；Biography of the electromagnetic excitation power in kingbolt component 2
Passing path is the flange on the shield electric machine 1- damping alloy main nut 2-2- damping alloy kingbolt 2-1- pump housing 5, in conjunction with damping
2 material of damping alloy kingbolt component is changed to by alloy material attribute and launching characteristics to reduce wherein high frequency pumping
Damping alloy material is vibrated in this way pointedly to absorb the medium-high frequency weakened on shield electric machine 1.
The utility model is further discussed below below with reference to embodiment:
Reactor coolant pump is made of the pump housing 5 and 1 two parts part of shield electric machine；Shield electric machine 1 drives vertical, high
Temperature, high pressure sealing pump 5, shield electric machine 1 is upper, and the pump housing 5 is under；5 part of the pump housing is one step single sucking mixed-flow pump, the sucking of the pump housing 5
Straight down, discharge opening C is horizontal tangent direction to mouth A；The connection in suction inlet A, discharge opening C and system superintendent road is using welding knot
Configuration formula, impeller 9 are directly installed in the rotor lower shaft end of shield electric machine 1, increase energy, row through impeller 9 from the water of suction inlet A inspiration
Enter to be mounted on the heat screen 4 of shield electric machine 1, and the guide vane being fastened on the base of shield electric machine 1, liquid kinetic energy is converted into
Pressure energy is discharged into the pump housing 5 by discharge opening C；5 part of the pump housing is directly contacted with high-temperature high-pressure medium, due to shield electric machine 1
In many components cannot bear the high temperature of medium, heat screen 4 is equipped between the pump housing 5 and shield electric machine 1, then by damping alloy
Kingbolt component 2 links together.
Bipyramid pad 3 is set between the pump housing 5 and shield electric machine 1, and connects into a sealing entirety with kingbolt component 2；
Inner cavity is directly communicated with 5 chamber of the pump housing between the stator of shield electric machine 1, rotor, bears reactor coolant loop pressure, constitutes reaction
Reactor coolant pressure boundary；Damping alloy kingbolt 2-1 and damping alloy main nut 2-2 are strictly held in shrink assembly step
Row is diagonal pre-tightens, and according to sequentially torque size pre-tightens damping alloy kingbolt component 2 in three times, improves shield electric machine 1 and pump
The faying face contact rate of body 5 reduces due to pre-tightening unevenly and bring faying face discontinuity phenomenon, reduces pump case under-chassis
Vibration acceleration level；Using damping alloy kingbolt component 2, reduces shield electric machine 1 and is transmitted to the vibration of the medium-high frequency on the pump housing 5,
It is damping alloy in the material of damping alloy kingbolt 2-1 and damping alloy main nut 2-2, makes damping alloy kingbolt component 2
The function weakened is absorbed with medium-high frequency.
The material of the damping alloy kingbolt component 2, which is used, absorbs the damping conjunction for weakening characteristic with high-frequency vibration
Gold；The high-frequency vibration of damping alloy kingbolt component 2, which absorbs the damp alloy material for weakening characteristic, to be had and can be directed to shield electric machine
The medium-high frequency vibration for passing to pump case is effectively inhibited；Damping alloy kingbolt component 2 can be in 20 DEG C of -80 DEG C of sections
Normal use, kingbolt assembly material are 25CrMoVA, guarantee that it absorbs the damping characteristic weakened to 1 medium-high frequency of shield electric machine.
Claims (1)
1. a kind of damping alloy kingbolt component, including shield electric machine, damping alloy kingbolt component, seal with double-cone, heat screen,
The pump housing, guide vane, increasing back sealing ring, axis, impeller, preceding sealing ring, impeller nut, it is characterised in that: sealing ring before being arranged in the pump housing
And impeller, impeller nut is set in impeller, balance hole B is set on impeller, increasing back sealing ring is set on impeller, in the pump housing
Guide vane and heat screen are set, axis is set in heat screen and impeller, seal with double-cone is set between shield electric machine and the pump housing, and leads to
Overdamp alloy kingbolt component is fixed, and suction inlet A is arranged in pump housing lower part, discharge opening C is arranged on the right side of the pump housing；The resistance
Damping alloy kingbolt component is made of damping alloy kingbolt, damping alloy main nut, in damping alloy kingbolt top circumference
Upper setting damping alloy main nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325509.3U CN208702787U (en) | 2018-08-17 | 2018-08-17 | A kind of damping alloy kingbolt component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325509.3U CN208702787U (en) | 2018-08-17 | 2018-08-17 | A kind of damping alloy kingbolt component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702787U true CN208702787U (en) | 2019-04-05 |
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ID=65942442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821325509.3U Active CN208702787U (en) | 2018-08-17 | 2018-08-17 | A kind of damping alloy kingbolt component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208702787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026850A (en) * | 2018-08-17 | 2018-12-18 | 沈阳鼓风机集团申蓝机械有限公司 | A kind of reactor coolant pump damping alloy kingbolt component |
-
2018
- 2018-08-17 CN CN201821325509.3U patent/CN208702787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026850A (en) * | 2018-08-17 | 2018-12-18 | 沈阳鼓风机集团申蓝机械有限公司 | A kind of reactor coolant pump damping alloy kingbolt component |
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