A temperature difference type operation equipment automatic anti freezing device by electric pump, an auxiliary water tank, heating tube, temperature sensor, temperature controller and temperature alarm and power-off, characterized in that the electric pump is connected with a power supply, the electric heating pipe and pump power supply line in parallel, thermostat and leakage protector in parallel, thermostat with low temperature and power failure alarm line series, temperature sensor circuit and temperature controller connected electric heating pipe is arranged in the auxiliary water tank, the water tank temperature sensor from the side wall is inserted into the water tank.
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技术研发人员：葛万生，徐德军，任勇，孙宝京，王晖，陈良虎，
申请(专利权)人：中国石化胜利油田有限公司孤岛采油厂，
类型：实用新型
国别省市：
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