Pumping-pressurization hybrid ventilation cooling system with stator sub-slots for nuclear power turbogenerators
A turbogenerator, ventilation and cooling technology, applied in the shape/style/structure of the winding conductor, the shape/style/structure of the magnetic circuit, the static parts of the magnetic circuit, etc., can solve the problem of inability to insulate heat, dissipate, and insulate the winding There is no direct cooling and other problems, and the effect of enhancing safety and stability, reducing temperature rise, and reducing the axial temperature difference of the stator is achieved.
Inactive Publication Date: 2018-06-05
HARBIN UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The difference from general small-capacity turbogenerators that do not use winding water internal cooling is that the temperature of the nuclear power turbogenerator winding is lower than the temperature of the stator teeth, so the heat is transferred from the stator teeth to the stator windings; nuclear power The heat of the turbogenerator winding and its insulation cannot be dissipated through the stator, and the winding insulation is not directly cooled
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Furthermore, it should be understood that development work, while potentially complex and time-consuming, would be a routine undertaking for those skilled in the art having the benefit of this disclosure.
[0021] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution ac...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an air draft and pressing hybrid ventilation cooling system provided with stator sub-slots for a nuclear power turbine generator and belongs to the technical field of electrical engineering. A stator core of the nuclear power turbine generator is formed by lamination of two different structural forms of silicon steel sheets; radial ventilation ducts are formed in a stator tooth part; a stator yoke part is of a total axial structure; the sub-slots which are axially through are arranged in the yoke part at the bottom of a stator slot of the nuclear power generator; contact cooling is carried out on a winding; the heat in the winding is transferred to a cooling medium in the ventilation sub-slots; a main insulator of the stator winding can be directly cooled through the cooling medium in the ventilation sub-slots at the bottom of the stator slot, so that insulation thermal aging and un-shelling of the stator winding can be prevented and the temperature rise of the stator yoke part of the nuclear power generator is reduced; in addition, a stator of the nuclear power turbine generator adopts an axial air draft and pressing hybrid ventilation cooling way, the axial temperature difference of the stator is effectively reduced, the comprehensive cooling effectiveness of the stator of the nuclear power generator is improved, and the safety and the stability of the nuclear power generator are enhanced.
Description
technical field [0001] The invention relates to a nuclear power turbogenerator ventilation and cooling system, in particular to a nuclear power turbogenerator with a suction and pressure hybrid ventilation and cooling system with auxiliary stator slots, belonging to the technical field of electrical engineering. Background technique [0002] The capacity of nuclear power turbogenerators is high, and the capacity of existing domestic units has reached 1400kVA-1700kVA; under the condition of a certain grid voltage, the stator windings of nuclear power turbogenerators have high electrical density. In order to timely reduce the heat generated by the stator copper consumption Take away, the stator winding mostly adopts water internal cooling. The difference from general small-capacity turbogenerators that do not use winding water internal cooling is that the temperature of the nuclear power turbogenerator winding is lower than the temperature of the stator teeth, so the heat is t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/20H02K3/24
CPCH02K1/20H02K3/24
Inventor 王立坤徐骁周家驹陶大军戈宝军吕艳玲
Owner HARBIN UNIV OF SCI & TECH