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Pressurizer baffle plate and pressurized water reactor (PWR) employing same

A pressurized water reactor and baffle technology, which is applied in the technical field of nuclear reactors

Inactive Publication Date: 2013-02-06
THE BABCOCK & WILCOX CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An external regulator can be used to control the pressure; however, the external regulator entails an additional large diameter pressure vessel penetration to connect the external regulator to the pressure vessel

Method used

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  • Pressurizer baffle plate and pressurized water reactor (PWR) employing same
  • Pressurizer baffle plate and pressurized water reactor (PWR) employing same
  • Pressurizer baffle plate and pressurized water reactor (PWR) employing same

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Embodiment Construction

[0014] refer to figure 1 , the illustrated pressurized water reactor (PWR) type nuclear reactor includes a pressure vessel 10 and a nuclear reactor core 12 disposed in the pressure vessel 10 . The reactor core 12 contains large quantities of fissile material, such as those containing uranium dioxide (UO 2 ) material, which is fissile 235 U isotopically enriched products, fissile material arranged as fuel bundles etc. disposed within caged fuel element racks or other support assemblies configured to fit within suitable mounting brackets or securing structures of the pressure vessel 10.

[0015] Pressure vessels containing up to figure 1 Primary coolant at level L indicated. In a PWR configuration, the primary coolant is maintained in a superheated state where both pressure and temperature are controlled. exist figure 1 In the PWR shown, the pressure is maintained using an internal pressurizer comprising steam bubbles S placed at the top of the pressure vessel 10 . A resis...

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PUM

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Abstract

A pressurized water reactor (PWR) includes a pressure vessel and a nuclear reactor core disposed in the pressure vessel. A baffle plate is disposed in the pressure vessel and separates the pressure vessel into an internal pressurizer volume disposed above the baffle plate and an operational PWR volume disposed below the baffle plate. The baffle plate comprises first and second spaced apart plates and includes a pressure transfer passage having a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level below an operational pressurizer liquid level range. A vent pipe has a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level above the operational pressurizer liquid level range.

Description

technical field [0001] The invention relates to nuclear reactor technology, power generation technology, nuclear reactor control technology, nuclear power generation control technology, thermal management technology and related technologies. Background technique [0002] Nuclear reactors use reactor cores that contain large amounts of fissile material, for example, containing uranium dioxide (UO 2 ) material, which is fissile 235 U isotopically enriched product. A primary coolant, such as light water or heavy water, flows through the reactor core to absorb heat, which is used to heat the water or another secondary coolant to generate steam, or for some other purpose. For electricity generation, the steam is used to drive the turbines of an electric generator. In thermonuclear reactors, water is also used as a neutron moderator to thermalize neutrons, which increases the reactivity of the fissile material. Various reactivity control mechanisms, such as mechanically operat...

Claims

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Application Information

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IPC IPC(8): G21C15/02G21C13/02
CPCY02E30/32G21C15/02Y02E30/40G21C1/086G21C1/09G21C13/02G21C1/32Y02E30/30
Inventor F·E·斯坦因默勒M·J·爱德华兹N·爱德沃里安Y·李
Owner THE BABCOCK & WILCOX CO
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