CN205175681U - Canned motor stator can axial fatigue test device - Google Patents
Canned motor stator can axial fatigue test device Download PDFInfo
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- CN205175681U CN205175681U CN201521008794.2U CN201521008794U CN205175681U CN 205175681 U CN205175681 U CN 205175681U CN 201521008794 U CN201521008794 U CN 201521008794U CN 205175681 U CN205175681 U CN 205175681U
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Abstract
The utility model relates to a canned motor stator can axial fatigue test device, upper cover (1) lower part installation moving top cover (2), moving top cover (2) and upper portion ring (4) through the bolt together, the dress is joined in marriage in moving top cover (2) outside in spacing ring (3), upper cover (1), spacing ring (3) by the bolt fastening on barrel (5) up end, low head (7) by the bolt fastening under barrel (5) on the terminal surface. The utility model discloses increase housing inner chamber water pressure medium jack -up moving top cover, it is 2MPa to obtain pressure through calculation, drives 4 tensile stator can 8 upper ends on the upper portion ring and produces 0.3mm axial displacement to axial through stator can in 51700 - pressurize - step -down circulation simulation canned motor life cycle that step up is tired, verifies that it can satisfy the requirement of design specifications book.
Description
Technical field
The utility model relates to a kind of shield electric machine stator can axial fatigue test unit.
Background technology
Generation Ⅲ nuclear power station reactor coolant pump have employed canned motor pump technology, and canned motor pump is made up of shield electric machine and pump, and shield electric machine inner chamber communicates with pump chamber, and inner chamber is filled with reaction under high pressure reactor coolant (light-water).Be subject to reactor coolant erosion for preventing stator winding and cause stator winding insulation thrashing, adopt corrosion resistant stator can stator winding and reactor coolant to be isolated.
Stator can employing corrosion resistance, the Hastelloy thin plate longitudinal measure that non magnetic, 0.406mm is thick form, and two ends girth joint lays respectively at shield electric machine stator end socket, stator lower flange, forms the closed chamber of stator winding.Because stator can thin plate itself can not bear the high pressure of canned motor pump reactor coolant, therefore between stator can girth joint, constitute stator can integrated support structure by stator core, conical ring, support ring, stator end socket, stator lower flange.
Nuclear power plant reactor coolant system designed life cycle memory in various transient state load, comprise the operating loading such as normal, medium frequency, rare and limit event, and reactor coolant pump various operating mode downforce, temperature and transient state cyclic loading after subject multiple transient state load combinations.Under above-mentioned load effect, the each parts of reactor coolant pump produce displacement structure, especially to be only the stator can displacement structure of 0.406mm obvious for thickness, cause stator can to produce stress to concentrate, and then produce radial direction and the axial fatigue of stator can under pressure, temperature cycling load effect.
At present, nuclear power plant reactor is with in the axial fatigue process of shield electric machine stator can, bell housing produces elastic deformation and creates plastic yield simultaneously, for the analysis of bell housing fatigue, existing means are only carry out sunykatuib analysis based on desirable theory, wherein do not do to consider about factors such as manufacture technics, lack simultaneously relevant research technique carry out actual condition under simplation verification.
Summary of the invention
The purpose of this utility model is a kind of shield electric machine stator can axial fatigue test unit of design, and by research technique simulation shielding motor stator bell housing axial fatigue, checking stator can axial fatigue meets design requirement.The utility model solves the technical scheme that its technical matters adopts: a kind of shield electric machine stator can axial fatigue test unit, removable top cover (2) is installed in upper cover (1) bottom, together with removable top cover (2) and top loop (4) are put together on by bolt, it is outside that spacing ring (3) is fitted in removable top cover (2), upper cover (1), spacing ring (3) is bolted on cylindrical shell (5) upper surface, low head (7) is bolted on cylindrical shell (5) lower surface, stator can (8) upper end and top loop (4) are welded and fixed, stator can (8) lower end and cylindrical shell (5) are welded and fixed, stator core (6) is sleeved on stator can (8) bottom, stator can (8) is set with successively conical ring (9), support ring (10), end support ring (11), end support ring (11) top is top loop (4).
Principle of work of the present utility model: the utility model spacing ring (3) is for limiting the gap of removable top cover (2) and upper cover (1), and this gap width is the axial displacement (0.3mm) that the stator can upper end obtained by theory calculate is produced.Removable top cover (2) and top loop (4) are carried out handle by bolt and are closed, by stator can inner chamber aqueous medium pressure increase jack-up removable top cover (2) during test, stretching stator can produces the displacement that 0.3mm axial displacement simulation shielding motor stator bell housing upper end produces, and by the axial fatigue in 51700 boosting-pressurizes-step-down circulating analog shield electric machine stator can life cycle.
Advantage of the present utility model: stator punching (12) endoporus in the utility model stator core (6) is circumferentially being uniformly distributed groove, depth of groove is stator can (8) the radial deformation degree of depth, the radial deformation under radial deformation Simulation of depth shield electric machine stator can actual operating mode.Stator can (8) upper end and top loop (4) are welded and fixed, removable top cover (2) and top loop (4) are undertaken unifying by bolt, test by increasing chamber pressure jack-up removable top cover, the axial displacement that under drive stator can generation axial displacement simulation actual condition, stator can produces.It is outside that spacing ring (3) is fitted in removable top cover (2), and be bolted on cylindrical shell (5) upper surface with upper cover (1), being equipped with by spacing ring, set the gap between upper cover (1) and removable top cover (2), namely removable top cover (2) drives the maximum axial displacement that stator can (8) produces.
Accompanying drawing illustrates:
Fig. 1 is the utility model shield electric machine stator can axial fatigue test unit schematic diagram.
Fig. 2 is the utility model stator core stamping sheet figure.
Embodiment
A kind of shield electric machine stator can axial fatigue test unit as shown in Figure 1, removable top cover 2 is installed in upper cover 1 bottom, together with removable top cover 2 and top loop 4 are put together on by bolt, it is outside that spacing ring 3 is fitted in removable top cover 2, upper cover 1, spacing ring 3 is bolted on cylindrical shell 5 upper surface, low head 7 is bolted on cylindrical shell 5 lower surface, stator can 8 upper end and top loop 4 are welded and fixed, stator can 8 lower end and cylindrical shell 5 are welded and fixed, stator core 6 is sleeved on stator can 8 bottom, stator can 8 is set with conical ring 9 successively, support ring 10, end support ring 11, , end support ring 11 top is top loop 4.
As shown in Figure 2, stator punching 12 endoporus in stator core 6 is circumferentially being uniformly distributed groove, the quantity of groove and width identical with actual CAP1400 nuclear power plant reactor cooling medium pump shield electric machine stator punching, depth of groove is the stator can 8 radial deformation degree of depth, the radial deformation under simulation shielding motor stator bell housing actual operating mode.
It is outside that spacing ring 3 is fitted in removable top cover 2, and be bolted on cylindrical shell 5 upper surface with upper cover 1, being equipped with by spacing ring, set the gap between upper cover 1 and removable top cover 2, namely removable top cover 2 drives the maximum axial displacement 0.3mm that stator can 8 produces.
Removable top cover 2 and top loop 4 by bolt unifying, aqueous medium is full of at stator can inner chamber during bell housing torture test, increase bell housing inner chamber aqueous medium pressure jack-up removable top cover 2, be 2MPa by calculating pressure, top loop 4 stator can 8 upper end that stretches is driven to produce 0.3mm axial displacement, and by the axial fatigue that 51700 boosting-pressurizes-step-down circulating analog shield electric machine life cycle inner stator shields, verify that it can meet the requirement of design specifications book.
Claims (2)
1. a shield electric machine stator can axial fatigue test unit, it is characterized in that: removable top cover (2) is installed in upper cover (1) bottom, together with removable top cover (2) and top loop (4) are put together on by bolt, it is outside that spacing ring (3) is fitted in removable top cover (2), upper cover (1), spacing ring (3) is bolted on cylindrical shell (5) upper surface, low head (7) is bolted on cylindrical shell (5) lower surface, stator can (8) upper end and top loop (4) are welded and fixed, stator can (8) lower end and cylindrical shell (5) are welded and fixed, stator core (6) is sleeved on stator can (8) bottom, stator can (8) is set with successively conical ring (9), support ring (10), end support ring (11), end support ring (11) top is top loop (4).
2. a kind of shield electric machine stator can axial fatigue test unit according to claim 1, it is characterized in that: stator punching (12) endoporus in stator core (6) is circumferentially being uniformly distributed groove, depth of groove is stator can (8) the radial deformation degree of depth, the radial deformation under radial deformation Simulation of depth shield electric machine stator can actual operating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008794.2U CN205175681U (en) | 2015-12-08 | 2015-12-08 | Canned motor stator can axial fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008794.2U CN205175681U (en) | 2015-12-08 | 2015-12-08 | Canned motor stator can axial fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175681U true CN205175681U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521008794.2U Active CN205175681U (en) | 2015-12-08 | 2015-12-08 | Canned motor stator can axial fatigue test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205175681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950986A (en) * | 2017-12-21 | 2019-06-28 | 北京有色金属研究总院 | A method of improving shield electric machine stator can stability |
| CN111397867A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Test bench suitable for testing fatigue strength of shielding sleeve of shielding motor pump |
-
2015
- 2015-12-08 CN CN201521008794.2U patent/CN205175681U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950986A (en) * | 2017-12-21 | 2019-06-28 | 北京有色金属研究总院 | A method of improving shield electric machine stator can stability |
| CN109950986B (en) * | 2017-12-21 | 2021-04-02 | 有研工程技术研究院有限公司 | Method for improving stability of stator shielding sleeve of shielding motor |
| CN111397867A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Test bench suitable for testing fatigue strength of shielding sleeve of shielding motor pump |
| CN111397867B (en) * | 2020-02-26 | 2021-08-06 | 上海交通大学 | Test bench suitable for testing fatigue strength of shielding sleeve of shielding motor pump |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |