Hydrogen-oxygen cycle engine and using method therefor

A hydrogen-oxygen cycle engine, comprising a cylinder assembly, a hydrogen supply assembly, an oxygen supply assembly, a circulating medium assembly, an atomized water assembly, a condensed water recovery assembly, and a control system, wherein the cylinder assembly comprises a cylinder body, a first intake branch pipe, an intake valve, an exhaust valve, an exhaust branch pipe, a nozzle, a piston, a connecting rod, and a crankshaft;

• the piston is drivingly connected to the crankshaft by means of the connecting rod, the piston is arranged in the cylinder body, and the top of the cylinder body is respectively connected to the intake valve, the exhaust valve, and the nozzle;
• one end of the first intake branch pipe is connected to the intake valve, and one end of the exhaust branch pipe is connected to the exhaust valve;
• the hydrogen supply assembly comprises a hydrogen storage tank, a hydrogen flame arrester, and a hydrogen pipeline;
• both ends of the hydrogen pipeline are respectively connected to the hydrogen storage tank and the nozzle, and the hydrogen flame arrester is arranged at a joint between the hydrogen storage tank and the hydrogen pipeline;
• the oxygen supply assembly comprises an oxygen storage tank, an oxygen intake main pipe, and an oxygen intake branch pipe;
• one end of the oxygen intake main pipe is connected to the hydrogen storage tank, and one end of the oxygen intake branch pipe is connected to the oxygen intake main pipe;
• the atomized water assembly comprises an atomized water storage tank, a cylinder atomized water pipeline, an intake branch pipe atomized water pipeline, and a delivery pump;
• both ends of the intake branch pipe atomized water pipeline are respectively connected to the atomized water storage tank and the first intake branch pipe;
• one end of the cylinder atomized water pipeline is connected to the intake branch pipe atomized water pipeline, and the other end thereof is connected to the nozzle;
• the delivery pump is arranged at a joint between the atomized water storage tank and the intake branch pipe atomized water pipeline;
• the circulating medium assembly comprises a circulating medium pipeline, a circulating medium branch pipeline, an intake main pipe, and an exhaust main pipe;
• both ends of the circulating medium pipeline are respectively connected to one end of the intake main pipe and one end of the exhaust main pipe, and both ends of the circulating medium branch pipeline are respectively connected to the other end of the exhaust main pipe and the hydrogen pipeline;
• the other end of the oxygen intake main pipe is connected to the intake main pipe, and the other end of the oxygen intake branch pipe is connected to the intake main pipe;
• the other end of the intake main pipe is connected to the first intake branch pipe;
• the condensed water recovery assembly comprises a condenser, a condensed water pipeline, and a condensed water storage tank which is arranged in the atomized water storage tank;
• both ends of the condensed water pipeline are respectively connected to one end of the condenser and the condensed water storage tank;
• the other end of the condenser is connected to the exhaust main pipe;
• the condensed water storage tank is connected to the atomized water storage tank;
• the intake main pipe is further provided with an air intake pipe;
• the exhaust main pipe is further provided with an off-gas emission pipe which is connected to the exhaust main pipe;
• the control system comprises a PLC controller, a human-computer interaction interface, and sensor assemblies;
• the PLC controller is respectively connected to the human-computer interaction interface and the sensor assemblies;
• the sensor assemblies comprise:
• a hydrogen flow sensor, a hydrogen pressure sensor, a hydrogen cut-off valve and a hydrogen throttle control valve which are arranged on the hydrogen pipeline, a cylinder atomized water control valve arranged on the cylinder atomized water pipeline, a temperature sensor arranged on the exhaust main pipe, an oxygen pressure sensor, an oxygen flow sensor and an oxygen flow control valve which are arranged on an oxygen main pipeline, an oxygen branch flow control valve arranged on an oxygen branch, a circulating medium pressure sensor arranged on the intake main pipe, an oxygen/hydrogen content sensor and a circulating medium control valve which are arranged on the circulating medium pipeline, an air intake control valve arranged on the air intake pipe, an off-gas emission control valve arranged on the off-gas emission pipe, and a branch pipe flow control valve arranged on the circulating medium branch pipeline;
• and the above-mentioned sensors are all connected to the PLC controller by means of data signals, and the PLC controller is connected to all the above-mentioned valves in a control manner.