Urea aqueous solution transportation system

A urea aqueous solution transportation system belongs to the technical field of urea preparation. The system comprises a storage tank, a solution pump and a conveying pipeline, the top of the storage tank is communicated with a urea production device through a liquid inlet pipe and provided with a first valve, the upper portion of the storage tank is connected with an exhaust pipe and provided with a second valve, the bottom of the storage tank is communicated with a liquid outlet pipe and provided with a third valve, and the liquid outlet pipe is communicated with a liquid discharge pipe. One end of the solution pump is connected to a storage tank of the urea production device, a fourth valve and a fifth valve are respectively mounted on the liquid discharge pipe, a liquid outlet of the solution pump is communicated to the preparation tank through a pipeline and is provided with a sixth valve, and a flushing pipe and is provided with a seventh valve are connected to the liquid discharge pipe between the thir