CN213899373U - Shell on main helium fan electromagnetic bearing - Google Patents
Shell on main helium fan electromagnetic bearing Download PDFInfo
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- CN213899373U CN213899373U CN202022682436.7U CN202022682436U CN213899373U CN 213899373 U CN213899373 U CN 213899373U CN 202022682436 U CN202022682436 U CN 202022682436U CN 213899373 U CN213899373 U CN 213899373U
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- electromagnetic bearing
- housing
- helium
- shell
- circulator
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Abstract
A shell on an electromagnetic bearing of a main helium fan relates to an electromagnetic bearing and aims to solve the problem that when the electromagnetic bearing runs on the main helium fan, the electromagnetic bearing is poor in heat dissipation due to a high-temperature damp-heat environment. Be equipped with two sets of ventilation holes on the casing, one of them group vent is corresponding with the thrust dish on the helium circulator, and another group vent is corresponding with the axial stator in the electromagnetic bearing. When the rotor of the main helium fan rotates, heat is generated in the electromagnetic bearing, and the heat generated by the stator coil is discharged through the two groups of ventilation holes, so that the inside of the electromagnetic bearing can be timely cooled. The utility model is suitable for an electromagnetic bearing who supports helium circulator rotor.
Description
Technical Field
The utility model relates to a bearing, concretely relates to casing on helium circulator electromagnetic bearing.
Background
The general electromagnetic bearing is used in the conventional natural environment, and the requirement on the structure of the electromagnetic bearing is not high. The electromagnetic bearing is one of important parts on the main helium fan, the main helium fan has the function of driving helium in a primary loop of the high-temperature gas cooled reactor to flow through a reactor core, and the helium with sufficient flow is provided to pass through a primary loop system to take away heat generated by the reactor core when the reactor is in working conditions such as normal starting, power running and shutdown. The electromagnetic bearing bears all loads of the main helium fan under various operating conditions, the working environment is severe, the nuclear power plant is irradiated, wet and hot, and high temperature, the common electromagnetic bearing cannot operate in the high-temperature wet and hot environment, and the ventilation structure is lacked, so that the heat dissipation is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a when solving electromagnetic bearing when the helium circulator goes up the operation, because the environment of high temperature damp and hot makes its problem that the heat dissipation is not good, and provide the casing on the helium circulator electromagnetic bearing.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
the shell on the electromagnetic bearing of the helium circulator is provided with two groups of vent holes, wherein one group of vent holes correspond to the position of a thrust disc on the helium circulator, and the other group of vent holes correspond to an axial stator in the electromagnetic bearing.
Preferably, the housing comprises an upper housing and a lower housing, and the upper housing and the lower housing are fixed together in a detachable connection mode.
Preferably, the upper case and the lower case are coupled by screws or bolts.
Preferably, the material of the shell is austenitic stainless steel.
Compared with the prior art, the utility model following beneficial effect has:
when the rotor of the main helium fan rotates, heat is generated in the electromagnetic bearing, and the heat generated by the stator coil is discharged through the two groups of ventilation holes, so that the inside of the electromagnetic bearing can be timely cooled.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
Example 1: the following describes the present embodiment with reference to fig. 1, where the present embodiment relates to a housing on an electromagnetic bearing of a helium circulator, and the housing 10 is provided with two sets of ventilation holes a, where one set of ventilation holes a corresponds to a position of a thrust disk on the helium circulator, and the other set of ventilation holes a corresponds to an axial stator in the electromagnetic bearing.
And a plurality of vent holes A are formed in the shell 10, and when the thrust disc of the helium circulator rotates, heat generated by stators on two sides of the helium circulator is discharged from one of the vent holes A through the rotation of the thrust disc.
Generally, the electromagnetic bearing on the main helium fan generally contains two axial stators and is positioned on two sides of the thrust disc.
Optionally, for easy disassembly and maintenance, the housing 10 includes an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 are fixed together by a detachable connection. And a group of vent holes A are formed in the upper shell 11, wherein the vent holes A correspond to one axial stator in the thrust disc of the helium circulator and the electromagnetic bearing respectively, and the other group of vent holes A are formed in the lower shell 12 and correspond to the other axial stator in the electromagnetic bearing.
Alternatively, the upper case 11 and the lower case 12 are connected by screws or bolts.
In order to prevent the electromagnetic bearing from generating strong magnetic interference, and avoid interference on external control signals and corrosion of the shell by damp heat, the shell is optionally made of austenitic stainless steel.
Although the present invention has been described in detail with reference to certain specific embodiments, it will be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (4)
1. The shell on the electromagnetic bearing of the helium circulator is characterized in that two groups of vent holes (A) are formed in the shell (10), one group of vent holes (A) corresponds to the position of a thrust disc on the helium circulator, and the other group of vent holes (A) corresponds to an axial stator in the electromagnetic bearing.
2. The housing on the helium main blower electromagnetic bearing as claimed in claim 1, characterized in that the housing (10) comprises an upper housing (11) and a lower housing (12), the upper housing (11) and the lower housing (12) being fixed together by means of a detachable connection.
3. The housing on the helium circulator electromagnetic bearing as claimed in claim 1, wherein the upper housing (11) and the lower housing (12) are connected by screws or bolts.
4. The housing on the helium circulator electromagnetic bearing of claim 1 or 2, wherein the housing is made of austenitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022682436.7U CN213899373U (en) | 2020-11-18 | 2020-11-18 | Shell on main helium fan electromagnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022682436.7U CN213899373U (en) | 2020-11-18 | 2020-11-18 | Shell on main helium fan electromagnetic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213899373U true CN213899373U (en) | 2021-08-06 |
Family
ID=77120034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022682436.7U Active CN213899373U (en) | 2020-11-18 | 2020-11-18 | Shell on main helium fan electromagnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213899373U (en) |
-
2020
- 2020-11-18 CN CN202022682436.7U patent/CN213899373U/en active Active
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