Natural gas medium-pressure canned transport vehicle

The utility model relates to a natural gas medium-pressure canned transport vehicle, belonging to the natural gas storage and transport vehicle field. The natural gas medium-pressure canned transport vehicle comprises a traction vehicle body, a can, a safety device and a running vehicle body linked at below the lower end of the can; The natural gas medium-pressure canned transport vehicle makes use of the self-pressure energy of the oil-gas well or the self-pressure of the prior high-pressure gasholder station to fill the middle-pressure canned vehicle to the required pressure directly without need for other pressurized equipment and then the gas can be sent to the users, greatly reducing cost, materials and energy consumption and hence the sales price of natural gas is relatively much lower; middle-pressure natural gas decompression is only one-time decompression and the natural gas of two to six Mega Pascals can be decompressed for one time to a low pressure below zero point two Mega Pascales as required by the customer without too much energy consumption for heating; The natural gas medium-pressure canned transport vehicle is not constrained by the gas volume of the user, cans of different ranks of pressure can be adopted to control the gas volume to be filled. The utility model has a thick can body wall and a big volume, is economic and practical, which is easy to be popularized.