Pressurizers
Pressurizers are part of the primary circuit of the reactor plant. They are designed to generate and control pressure in the primary circuit in all steady and transient operation conditions of nuclear power plants.
Today, AEM-Technologies manufactures pressurizers for reactor halls of such foreign and Russian nuclear power plants as the Kursk-2, Akkuyu, Kudankulam, Tianwan, Rooppur, and other NPPs.
General characteristics
The pressurizer is a welded thick-walled pressure vessel filled with chemically demineralized water from the primary circuit. It consists of cylindrical shells and elliptical bottoms. To control the pressure, the vessel has 30 units of tubular electric heateres to increase the pressure and a sprinkler system injecting cooled water from the cold leg of the primary circuit to reduce it.
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Life time
| 60 years |
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Design temperature
| 350 ℃ |
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Operating temperature
| 347.9 ℃ |
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Design pressure
| 17.64 MPa |
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Operating pressure
| 16.1 ± 0.3 MPa |
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Operating media
| Steam, Water |
Dimensions
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Weight t
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Length m
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Diameter m
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Height m
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Internal volume m³
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Vessel wall thickness mm
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