GB190814112A - Improvements relating to Hot Water Heating Apparatus. - Google Patents

Abstract

14,112. Walton, H. July 3. Heating buildings &c. -In an apparatus for accelerating the flow of hot water through a system, steam, either generated in a closed circuit c, b, or drawn from a separate source, traverses a pipe e and lowers the water level in two " displacing- " vessels " g, arranged at different levels. Water is forced out of the higher vessel g into the main return pipe l. The out-flow continues until the lower end of the U-tube r is uncovered, thus admitting steam to the condenser tube s, which passes through the expansion tank k. The pressure of steam causes the water in the tube t to close the valve u by action on the diaphragm v, and the vacuum caused by the condensation draws fresh water from the tank k. Meanwhile the steam pressure has emptied the lower vessel h into the circulating - pipe l through the non- return valve o. On the fall of the valve u, the vessel h is refilled from the higher vessel g and the operations are repeated. Relief pipes p, q and air valves 5 are provided. The radiators &c. are connected to the pipes m. A three - way valve 6 may cause the water all to pass through the boiler, part through the boiler and part into the circulating-pipe. or all through the circulating-system. In a modification, the valve u is dispensed with, the upper vessel g deriving its steam from a U-tube in the chamber h, which is the first in this case to be discharged. The rise of water in the vessel h effects the same purpose as the valve u.