Intelligent super-standard reserved sample control device

The utility model discloses an intelligent super-standard reserved sample control device. The intelligent super-standard reserved sample control device comprises a COD (chemical oxygen demand) detector, a sampling mechanism and a sewage pipeline connected with the sampling mechanism, wherein the sampling mechanism comprises a sewage temporary-holding bottle, a solenoid valve, a three-way valve, a controller and a sampler; the sewage temporary-holding bottle, the solenoid valve and the three-way valve are connected in sequence; the controller is connected with the solenoid valve, the three-way valve, the sampler and the COD detector; the COD detector is connected with the sewage temporary-holding bottle; one end of the three-way valve is connected with the sampler, and the other end of the three-way valve is connected with a sewage pipeline; the sewage temporary-holding bottle is connected with the sewage pipeline through a pump body. According to the intelligent super-standard reserved sample control device provided by the utility model, water sample sampling is performed only after the reserved sample is detected to exceed the standards, otherwise, the water sample sampling is not performed, so that the sampling efficiency is greatly improved.