CN206280308U - Second-generation reactor coolant pump torsional spring sleeve - Google Patents
Second-generation reactor coolant pump torsional spring sleeve Download PDFInfo
- Publication number
- CN206280308U CN206280308U CN201621328025.5U CN201621328025U CN206280308U CN 206280308 U CN206280308 U CN 206280308U CN 201621328025 U CN201621328025 U CN 201621328025U CN 206280308 U CN206280308 U CN 206280308U
- Authority
- CN
- China
- Prior art keywords
- class
- torsional spring
- axial
- prismatic blade
- spring sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model is related to a kind of second-generation reactor coolant pump torsional spring sleeve, possesses the spiral prismatic blade of the axial class (1) of multiple circumference uniform distributions；The axial spiral prismatic blade of class (1) entrance upper end (2) and exit lower end (3) horizontal end face of machine addition, the axial spiral prismatic blade of class (1) thickness of thin and thickness are uniform, and the entrance upper end (2) of the axial spiral prismatic blade of class (1), exit lower end (3) thickness are less than 5mm.The positioning end face of the utility model torsional spring sleeve wheel hub makes torsional spring sleeve position lower guide bearing sleeve upper surface, rotation flat spring, torsional spring piston are by assembling step fixed constraint torsional spring sleeve, dismounting, easily maintenance are easy in modularized design without mounting screw, reduce nuclear power station site examining and repairing maintenance time.The assignment of traffic side of the utility model torsional spring sleeve and interior baffle pipe cooperating, both serve sealing function, play again to heat screen cooling flow in the distributional effects of interior baffle pipe both sides.
Description
Technical field：The utility model is related to second-generation reactor coolant pump torsional spring sleeve.
Background technology：In two generations, added axle envelope main pump to be widely used in pressurized-water reactor nuclear power plant all over the world, were nuclear power station main pumps
One of main Types.The three-level sealing of this type main pump and lower guide bearing are respectively positioned on pressure-bearing boundary inside, it is necessary to cold using equipment
But water cooling sealing.Early stage cooling needs independent external device to provide power, and complex structure, maintenance task is heavy；In addition duty
Between it is big, using limited in the nuclear reactor for having shockproof requirements, space limited；And when component cooling water is interrupted, may cause
Pump is leaked, and is not suitable for being used in this high pressure of nuclear power station, nuclear radiation, the particular surroundings of safety first.
The content of the invention：The utility model purpose is to provide a kind of two generations plus core for cooling down three-level sealing and lower guide bearing
Main pump torsional spring sleeve, using the teaching of the invention it is possible to provide enough cooling water flows, lifting means cooling water pressure, it is ensured that above heat screen three
Level sealing stable operation and the normal work of bottom guide bearing.The technical solution of the utility model is：A kind of second-generation reactor coolant pump
Torsional spring sleeve, possesses the spiral prismatic blade of the axial class (1) of multiple circumference uniform distributions；The axial spiral prismatic blade of class (1) enters
Mouthful upper end (2) and exit lower end (3) horizontal end face of machine addition, the axial spiral prismatic blade of class (1) thickness of thin and thickness uniformly, axle
5mm is less than to the entrance upper end (2) of the spiral prismatic blade of class (1), exit lower end (3) thickness；Wheel hub (4) lower inside be provided with
The assignment of traffic side (5) of interior baffle pipe (13) cooperating, wheel hub (4) upper inner is provided with and rotation flat spring (10), rotation
Turn the assembling step (6) of spring piston (11) cooperating, wheel hub (4) lower inside is provided with and coordinates with lower guide bearing sleeve (12)
The positioning end face (8) of work, wheel hub (4) inside middle portion is provided with the side (9) assembled with rotating shaft.
Described axial class spiral prismatic blade (1) thickness is uniform, and thickness is 5mm, the axial spiral prismatic blade of class (1)
Tip diameter (7) is 327.5mm, and the axial spiral prismatic blade of class (1) cornerite is 126 °.
Described wheel hub (4) whole height is 67mm, and the height of the axial spiral prismatic blade of class (1) is 55mm.
The technological merit of this product utility model is：
1. the utility model torsional spring sleeve is arranged in rotating shaft, follows rotating shaft synchronous rotary, it is not necessary to extra power
Device.When pump normal rating runs, there is provided stabilization and enough cooling flow, pump stopping process, cooling flow is with rotation speed change.
2. the utility model impeller height size is small, highly with diameter ratio about 0.21, reduces reactor coolant pump
The installing space of axial direction.
3. the blade of the utility model torsional spring sleeve uses 10 blades, i.e., cascade solidity high are ensureing to be heat-insulated
On the premise of screen provides enough cooling flow, while there is provided HTHP cooling in the operating pressure and seal cage of stabilization
Water.
4. the utility model torsional spring sleeve has 10 consistency blades, but process is simple, blade strength be high, machining
Economy and ageing good, meeting long-life, high pressure, nuclear radiation environment uses.
5. the positioning end face of the utility model torsional spring sleeve wheel hub makes torsional spring sleeve position lower guide bearing sleeve
Upper surface, rotation flat spring, torsional spring piston are by assembling step fixed constraint torsional spring sleeve, the mould without mounting screw
Dismounting, easily maintenance are easy in blockization design, reduce nuclear power station site examining and repairing maintenance time.
6. the assignment of traffic side of the utility model torsional spring sleeve and interior baffle pipe cooperating, had both served sealing
Effect, plays to heat screen cooling flow in the distributional effects of interior baffle pipe both sides again.
The course of work of the present utility model is：Torsional spring sleeve and pump share a rotating shaft, when pump shaft rotates, drive
The spiral prismatic blade of axial class (1) rotation of swivel bearing sleeve.Component cooling water has been divided into upper and lower in first order annular seal space
Both direction flows, wherein most component cooling waters flow downward, sub-fraction flows up the sealing of cooling and lubricating three-level.
On the one hand the spiral prismatic blade of the axial class (1) of rotation makes the component cooling water pressure rise for flowing downward, it is therefore prevented that high temperature is high
Aqueous reflux of main pump of pressure, the spiral prismatic blade of the axial class (1) on the other hand rotating serves flow allocating effect, it is ensured that
The component cooling water assignment of traffic of up and down flowing is in zone of reasonableness.
The assignment of traffic side (5) of torsional spring sleeve makes the component cooling water for flowing downward carry out assignment of traffic, one
The parts such as the heat screen outside equipment component cooling water cooling, another part component cooling water cooling lower guide bearing sleeve etc. zero
Part.
Brief description of the drawings：
Fig. 1 torsional spring sleeve axonometric drawings
The profiles such as Fig. 2 torsional springs sleeve, rotating missile flat spring, torsional spring piston
Fig. 3 torsional spring sleeve design parameter lists
Specific embodiment：
A kind of second-generation reactor coolant pump torsional spring sleeve as shown in Figure 1, the axial class for possessing 10 circumference uniform distributions is spiral
Prismatic blade 1；The axial spiral entrance upper end 2 of prismatic blade 1 of class and the horizontal end face of machine addition of exit lower end 3, axial class are spirally straight
The thickness of thin of blade 1 and thickness is uniform；The entrance upper end 2 of the axial spiral prismatic blade 1 of class, the thickness of exit lower end 3 are less than 5mm；Axle
It is 126 ° to the spiral cornerite of prismatic blade 1 of class, will be flowed using the spiral runner of prismatic blade 1 of axial class when torsional spring sleeve is operated
Body is extruded axially downward, raises cooling water pressure；As shown in Fig. 2 the lower inside of wheel hub 4 is provided with and coordinates with interior baffle pipe 13
The assignment of traffic side 5 of work, makes component cooling water flow reasonable distribution；The upper inner of wheel hub 4 be provided with rotation flat spring 10,
The assembling step 6 of the cooperating of torsional spring piston 11, rotation flat spring 10, the rotation of the common fixed constraint of torsional spring piston 1
Spring spool is moved axially.The lower inside of wheel hub 4 is provided with the positioning end face 8 with the cooperating of lower guide bearing sleeve 12, positioning end
The axial location of torsional spring sleeve is fixed in face 8；The inside middle portion of wheel hub 4 is provided with the side 9 assembled with rotating shaft.
The spiral thickness of prismatic blade 1 of axial class as described in Figure 3 is uniform, and thickness is 5mm.The axial spiral prismatic blade 1 of class
Tip diameter 7 be 327.5mm.The whole height of wheel hub 4 is 67mm, and the height of the axial spiral prismatic blade 1 of class is 55mm.
Claims (3)
1. a kind of second-generation reactor coolant pump torsional spring sleeve, it is characterized in that：The axial class for possessing multiple circumference uniform distributions is spirally straight
Blade (1)；The axial spiral prismatic blade of class (1) entrance upper end (2) and exit lower end (3) horizontal end face of machine addition, axial class spiral shell
Rotating prismatic blade (1) thickness of thin and thickness are uniform, the entrance upper end (2) of the axial spiral prismatic blade of class (1), exit lower end (3)
Thickness is less than 5mm；Wheel hub (4) lower inside is provided with the assignment of traffic side (5) with interior baffle pipe (13) cooperating, wheel hub
(4) upper inner is provided with the assembling step (6) with rotation flat spring (10), torsional spring piston (11) cooperating, wheel hub (4)
Lower inside is provided with the positioning end face (8) with lower guide bearing sleeve (12) cooperating, and wheel hub (4) inside middle portion is provided with and rotating shaft
The side (9) of assembling.
2. a kind of second-generation reactor coolant pump torsional spring sleeve according to claim 1, it is characterized in that：Described axial class spiral shell
Rotating prismatic blade (1) thickness is uniform, and thickness is 5mm, and the tip diameter (7) of the axial spiral prismatic blade of class (1) is 327.5mm,
The axial spiral prismatic blade of class (1) cornerite is 126 °.
3. a kind of second-generation reactor coolant pump torsional spring sleeve according to claim 1, it is characterized in that：Described wheel hub (4)
Whole height is 67mm, and the height of the axial spiral prismatic blade of class (1) is 55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621328025.5U CN206280308U (en) | 2016-12-06 | 2016-12-06 | Second-generation reactor coolant pump torsional spring sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621328025.5U CN206280308U (en) | 2016-12-06 | 2016-12-06 | Second-generation reactor coolant pump torsional spring sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280308U true CN206280308U (en) | 2017-06-27 |
Family
ID=59074740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621328025.5U Withdrawn - After Issue CN206280308U (en) | 2016-12-06 | 2016-12-06 | Second-generation reactor coolant pump torsional spring sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402040A (en) * | 2016-12-06 | 2017-02-15 | 哈尔滨电气动力装备有限公司 | Rotary spring sleeve of generation II-plus nuclear main pump |
-
2016
- 2016-12-06 CN CN201621328025.5U patent/CN206280308U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402040A (en) * | 2016-12-06 | 2017-02-15 | 哈尔滨电气动力装备有限公司 | Rotary spring sleeve of generation II-plus nuclear main pump |
| CN106402040B (en) * | 2016-12-06 | 2018-11-27 | 哈尔滨电气动力装备有限公司 | Second-generation reactor coolant pump torsional spring sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201925177U (en) | Submersible through-flow pump with planetary gear reducing mechanism | |
| CN103953553B (en) | A kind of borehole shaft drivenpump | |
| CN206280308U (en) | Second-generation reactor coolant pump torsional spring sleeve | |
| CN107013399B (en) | Fixed-blade tubular turbine adopting gear transmission | |
| CN106402040B (en) | Second-generation reactor coolant pump torsional spring sleeve | |
| CN205978076U (en) | Air supporting thrust bearing structure that double -deck recirculated cooling water said | |
| CN204553793U (en) | A kind of injection machine Special gear reducer | |
| CN109654066B (en) | Sodium pump for increasing hydrostatic bearing supply pressure | |
| CN202934138U (en) | Main shaft for computerized numerical control machine | |
| CN207953546U (en) | A kind of numerically control grinder machining center electro spindle | |
| CN203599538U (en) | High-speed air floatation electric spindle | |
| CN205349602U (en) | A hydraulic turbine for cooling tower | |
| CN204391958U (en) | A kind of oil cooling structure of servomotor | |
| CN201677205U (en) | Main shaft cooling structure | |
| CN203948315U (en) | A kind of borehole shaft drivenpump | |
| CN101811270A (en) | Spindle cooling structure | |
| CN103939381B (en) | The design method of the one seed nucleus main pump pump housing | |
| CN206903923U (en) | Lubricating oil guiding subassembly, motor, compressor and air conditioner | |
| CN209244925U (en) | A kind of energy-saving engine cooling water pump | |
| CN201552468U (en) | Machine tool main spindle heat dissipation structure | |
| CN206830503U (en) | From pumping fluid dynamic and static pressure guide bearing | |
| CN206023497U (en) | A kind of chiller of servomotor | |
| CN204799399U (en) | Hard pitch milling machine | |
| CN206845828U (en) | A kind of torque converter assemblage | |
| CN211715561U (en) | Device for cooling bearing seat by circulating water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20181127 |
|
| AV01 | Patent right actively abandoned |