Improvements relating to steam plants having a demand for hot water and provided with steam accumulators or heat storers for equalizing variations in the steam production or heat consumption

摘要

191,746. Aktiebolaget Vaporackumulator. Jan. 13, 1922, [Convention date]. Generating by direct contact of steam; hotwater storage apparatus.-To maintain an even load on a steam boiler plant having a variable consumption, surplus steam is led into direct contact with water in a storage reservoir a, Fig. 1, hot water at a constant temperature being led off from the reservoir through a pipe k. To control the temperature of the water, the cold water inlet pipe e may be fitted with a valve f so operated by a piston acted upon by the steam pressure on the reservoir that when the pressure rises the valve is opened, and when the pressure falls, the valve is closed. Steam may be led off through a pipe l. The operation of the valve f may be controlled by a thermostatic capsule in the hot water, the pressure on the capsule acting on a diaphragm connected to the valve. In modifications, the temperature in the container is maintained constant by automatically controlling the valve in the steam supply pipe c, the cold water supply being kept constant. The steam may be condensed in a surface condenser before entering the reservoir. Hot water may be led from the storage reservoir a, Fig. 5, to a chamber x, from which either hot water or steam may be taken. A float valve 4 closes the inlet pipe k when the water in the chamber rises above a certain level. A valve 7 prevents water from entering the steam outlet pipe 2. Specification 6894/14 is referred to.