GB232994A - Improvements in hot water heating installations - Google Patents

Abstract

232,994. Pamart, L. E. April 28, 1925. Heating buildings. -Water is circulated through a heating system in pulsations by means of steam produced in the auxiliary boiler supplied intermittently with water. The boiler comprises a water space a and coil b. The space a is connected by pipes d, e to an expansion space c, and the coil b is connected by a pipe o to a " pulsator " g. Another pulsator f is connected to the pulsator g by a pipe! i, and to the pipe e through a non-return valve h. The pipe e and coil b are connected by a pipe k. Water is supplied to the radiators through a pipe r having a valve s which allows the passage of water in the direction of the arrow, but not of steam. When the apparatus is full of water to the level AB, steam is generated in the coil band passes into the upper end of the vessel g, forcing the water through the pipe r to the radiators and back through the pipe t to the chamber c. When the water in vessel g uncovers the pipe u, steam passes into the vessel f and forces some water into the vessel g, which condenses the steam. The reduced pressure draws water from the chamber c through valve h to refill the vessels f, g, and also coil b so that the cycle is repeated. In a modification, the coil b may be fed from the vessel g, and in another modification, Fig. 3, the supply and discharge of steam to and from the vessel g are controlled automatically by a float valve w. When the vessel is nearly empty, the float x closes the admision of steam through the pipe o and opens the outlet through the pipe z. so that the vessel can refill through the pipe i'.