High-pressure device of hybrid vehicle type fuel system

The invention relates to a high-pressure device of a hybrid vehicle type fuel system. The high-pressure device comprises a fuel tank, a refueling limiting combination valve, a front carbon canister adsorption pipe, a carbon canister desorption pipe, a refueling main pipe, a circulating pipe, a rear carbon canister adsorption pipe, a carbon canister and a fuel tank isolation valve, the front carbon canister adsorption pipe comprises a first branch pipe, a liquid accumulator, a second branch pipe, a third branch pipe, a fourth branch pipe and a three-way joint, the liquid accumulator is respectively connected with the first branch pipe and the second branch pipe, the three-way joint is respectively connected with the second branch pipe, the third branch pipe and the fourth branch pipe, and the other end of the first branch pipe is connected with the refueling limiting combination valve; the circulating pipe communicates with the main oil pipe and the third branch pipe; the other end of the fourth branch pipe is