Pump/heat exchanger
A pump/heat exchanger assembly has tubes with double walls, inner and outer respectively, the outer wall being provided with inner longitudinal grooves. The exchange occurs between a primary fluid circulating outside the said tubes and a secondary fluid circulating inside the said tubes. A plurality of the doublewalled tubes are arranged in an annular space, each tube consisting of a plurality of interconnected tube sections, having horizontal curved portions and elbowed portions, the tube sections being joined together at the elbowed portions. At least one leakproof annular chamber is provided outside the annular space and connected thereto. Leaks in the said tubes, are detected by injecting an inert gas, under a given pressure, into the said annular chambers, and comparing the pressure of the gas in the chamber with a maximum and a minimum pressure.
- Assignee:
- Commissariat A L'Energie Atomique (France)
- Patent Number(s):
- US 4216821
- OSTI ID:
- 6868136
- Country of Publication:
- United States
- Language:
- English
Similar Records
EVAPORATOR AND BOILER PREFERABLY FOR NUCLEAR REACTORS
IMPROVEMENTS RELATING TO THE EMBODIMENT OF A NUCLEAR REACTOR