The invention relates to a long-term on-line sea
water quality monitoring device and method based on a small
buoy. The monitoring device comprises a
buoy body, and a meteorological equipment installing
tower is arranged on the upper portion of the
buoy body. The monitoring device further comprises a multi-parameter
water quality sensor and a sampling
pool, the
water quality sensor is installed on the sampling
pool through a fixing frame, a probe of the sensor is located in the sampling
pool, and the sampling pool is installed below the meteorological equipment installing
tower arranged on the upper portion of the buoy body through a fixing frame;
ultraviolet lamps are arranged on the inner wall of the sampling pool, the sampling pool is provided with a water inlet
pipe with a
peristaltic pump and a drainage
pipe with a
solenoid valve, and a water inlet of the
peristaltic pump is communicated with sea water. The design that the water quality sensor is arranged above the buoy and placed above the sea water surface is provided for the first time, measured liquid is drained after measurement is finished, the sensor is placed in air, cheap and efficient air is used for achieving anti-
biological adhesion of the water quality sensor, the service cycle is greatly prolonged, it is unnecessary to store or prepare
disinfectant and cleaning fluid as a traditional method, and cost and safety risks are greatly reduced.