Automatic comprehensive petroleum liquid sample sampler

The invention discloses an automatic comprehensive petroleum liquid sample sampler. The automatic comprehensive petroleum liquid sample sampler comprises an oil sample storage barrel, a water bath barrel, an anti-explosion heating pipe, an anti-explosion temperature controller, oil sample circulating pipes, a stainless steel circulating pump, an anti-explosion distribution box and an anti-explosion motor, wherein the oil sample storage barrel is arranged in the water bath barrel; the top of the oil sample storage barrel is provided with two oil sample circulating pipes and an oil sample inlet connected with an oil sample input pipe; the water bath barrel is internally provided with the anti-explosion heating pipe which is positioned below the oil sample storage barrel; the outer bottom of the water bath barrel is provided with the anti-explosion temperature controller; the stainless steel circulating pump is positioned at one side of the water bath barrel; the anti-explosion motor is connected with the stainless steel circulating pump; the oil sample input pipe is provided with a timing distribution valve. The petroleum liquid comprehensive sample automatic sampler has the advantages that the structure is reasonable; the labor intensity is low; the testing accuracy of water content conditions of offshore crude oil convergence and transportation is improved; errors for handing over and taking over the crude oil convergence and transportation are reduced; the safety and the environment protection in the crude oil sampling process are ensured.