FROST FALL SENSING AUTOMATIC SPRINKLER SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a frost fall sensing automatic sprinkler system automatically not only sprinkling water but also stopping the flow of water at a given temperature in a place to which commercial power source is not supplied so as to reduce sprinkling work for the protection from frost fall on a tea plantation.;SOLUTION: This frost fall sensing automatic sprinkler system is such that a solenoid valve B5 opens at a given temperature to discharge water from a chamber C14, thus a diaphragm 9 rises to connect a chamber A12 with a chamber B13, and water on a valve inlet 10 flows to a valve outlet 11 to be sprinkled. When a temperature rises to be a given temperature, the solenoid valve 4 opens to supply water in the chamber A12 to the chamber C14 and the diaphragm lowers to block the chamber A12 and a chamber B11, thus sprinkling water is stopped.;COPYRIGHT: (C)2003,JPO