Device for heating a pressuriser
A technology of induction heating equipment and pressurizer, which is applied in the direction of induction heating, induction heating device, electric/magnetic/electromagnetic heating, etc., which can solve the problems of increased downtime of pressurizer, complicated maintenance operation, and easy maintenance of heating device, etc. problem, to achieve the effect of manufacturing simplification
Inactive Publication Date: 2015-12-23
SOC TECH POUR LENERGIE ATOMIQUE TECHNICATOME
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in case of failure, these heating devices do not allow maintenance to be carried out easily
The fact that none of these heating devices are easily removable further complicates maintenance operations and increases pressurizer and thus facility downtime
Furthermore, induction heating equipment via pressurizer enclosures, as described in document JP2004-170312, may have sealing problems
Method used
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Embodiment Construction
[0033] Figure 1A with 1B A first exemplary embodiment of an induction heating device according to the invention positioned on a pressurizer 2 of a pressurized water nuclear power plant is schematically shown. Figure 1A more precisely shows a cross-sectional view along the longitudinal plane of the pressurizer, and Figure 1B A cross-sectional view along a transverse plane of the pressurizer is shown.
[0034] The pressurizer is formed by an enclosure 21 which encloses at its lower part the primary water 22 of the primary circuit of the power plant. Enclosure 21 is formed by the following components:
[0035] - an inner wall 211 made of a magnetic material such as for example steel, which is in direct contact with the primary water 22;
[0036] - a thermally insulating outer wall 212 .
[0037] exist Figure 1A with 1B In the exemplary embodiment shown, the heating device 1 includes twelve heating modules 11 positioned at the sides of the casing 21 for example, Figure 1A...
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The invention relates to an induction heating device (1) for a pressuriser (2) of a pressurised water nuclear reactor, which pressuriser includes an enclosure (21) having an inner wall made of magnetic material (211), wherein the device comprises at least one heating module (11) having: a winding mounting (111); a winding (112) of conductive wire wound around said mounting (111), said winding (112) generating a magnetic field when an alternating electric current passes therethrough; wherein said device is characterized in that it comprises a module mounting (31) that engages with attachment means for removably attaching said heating module (11) to said module mounting (31), said module mounting (31) being suitable for positioning said heating module outside of the inner wall (211) of the enclosure (21) of said pressuriser (2) in a position that makes it possible to heat said inner wall (211) of the pressuriser (2) by magnetic induction when an electric current passes through said winding (112) of said heating module (11).
Description
technical field [0001] The invention relates to a heating device for a pressurizer of a pressurized water nuclear power plant, and also to a pressurizer of a pressurized water nuclear power plant comprising such a device. Background technique [0002] A pressurized water nuclear reactor comprises a circuit in which the cooling water of the reactor, called primary water, is maintained at a high pressure of the order of 155 bar by means of a pressurizer. [0003] The pressurizer is capable of maintaining the pressure in the primary circuit within certain defined limits by spraying when the pressure tends to exceed the upper allowable limit, or by electrically heating the water once when the pressure tends to drop below the lower allowable limit . [0004] The pressurizer is formed by an enclosure having a lower part partially filled with primary water and an upper part filled with steam, at a pressure substantially equal to the pressure of the water circulating in the primary...
Claims
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IPC IPC(8): G21C1/09H05B6/02G21D3/08
CPCG21C1/09G21D3/08H05B6/108Y02E30/30Y02E30/00H05B6/10H05B6/36
Inventor J-P·鲁
Owner SOC TECH POUR LENERGIE ATOMIQUE TECHNICATOME