15 results about "Hydrogen compression" patented technology

The utility model relates to a compressor technical field, concretely is a kind of air quantity stepless regulator applied to new hydrogen compressor.The utility model provides a kind of improved air quantity stepless regulator applied to new hydrogen compressor.It include compressor body, inlet valve, exhaust valve and stepless regulation control mechanism etc., the stepless regulation control mechanism is arranged at the top of compressor body, the adjustable outlet valve is also arranged at the top of compressor body.The moving rate of adjusting block is controlled by hydraulic cylinder, the opening and closing time of inlet valve and delay closing function can be realized accurately, make the excess gas before compression backflow to backflow cavity through exhaust valve, ensure that only the required gas volume is compressed, and then the indicated work consumption can be effectively reduced, and energy efficiency is improved;And when the pressure in compression cavity exceeds the set value, gas can be discharged through the exhaust valve of shaft side and the adjustable outlet valve of cover side double channel respectively, avoid that piston and connecting rod bear excessive one-way force, and then it is favorable to prolong the service life of key components.

The utility model relates to the field of petroleum chemical industry, concretely relates to a kind of aromatic oil hydrogenation device.The aromatic oil hydrogenation device includes: new hydrogen compressor, with opposite new hydrogen import and new hydrogen export;Import pipeline, one end is connected with new hydrogen import, the other end is suitable for being connected with pipe network;Outlet pipeline, one end is connected with new hydrogen export;Check valve is arranged on outlet pipeline, and flow orifice is arranged at check valve;Flow transmitter is also arranged on outlet pipeline, and flow transmitter is arranged behind check valve along the flow direction of hydrogen.The utility model relates to a kind of aromatic oil hydrogenation device, and the pressure and flow of hydrogen can be adjusted by new hydrogen compressor and flow orifice, to adapt to the use requirement of aromatic oil hydrogenation device.

The ammonia production system comprises a hydrogen source and a hydrogen compression unit, configured to compress hydrogen from the hydrogen source. The system further comprises a nitrogen source and a syngas compressor, configured to receive nitrogen from the nitrogen source and hydrogen from the hydrogen compression unit, and further configured to compress a syngas including a mixture of hydrogen and nitrogen and deliver the compressed gas mixture to an ammonia synthesis module. The hydrogen source and the nitrogen source are fluidly coupled to the syngas compressor. The hydrogen compression unit is configured to deliver hydrogen at pressures of 8 to 17 bar.

A control device, when a water electrolysis system is initiated, controls electrical power source devices in a manner so that a water electrolysis electrical current and a hydrogen compression electrical current increase gradually in coordination. During such gradual increasing, it is detected whether or not flooding has occurred in a hydrogen compression stack, and at a time when it is detected that flooding is occurring, until the flooding is eliminated, a flooding elimination control is carried out in which an increase in the water electrolysis electrical current and the hydrogen compression electrical current is temporarily suspended and the water electrolysis electrical current and the hydrogen compression current are maintained at a constant current value in coordination.

The application discloses a kind of industrial by-product hydrogen compression purification system and method, system includes no gas valve mechanical compressor, atomizer, electrochemical compressor, dehumidifier and gas tank;First atomizer is set in the compression cavity of no gas valve mechanical compressor, for in the process of no gas valve mechanical compressor compression to the compression cavity in water spray;The compressed gas outlet of no gas valve mechanical compressor is connected with the anode side inlet of electrochemical compressor by pipeline and is equipped with second atomizer for hydrogen humidification in pipeline;The cathode side of electrochemical compressor is equipped with the atomizer for humidifying the cathode membrane of electrochemical compressor;The cathode side outlet of electrochemical compressor is connected with gas tank and is equipped with dehumidifier for hydrogen dehumidification on the connecting pipeline.The application fully combines the characteristics of mechanical compressor and electrochemical compressor, designs efficient and feasible system, and obtains relatively pure high-pressure hydrogen.

This invention discloses a power generation system for a PEMFC fuel cell, belonging to the field of natural gas hydrogen production technology. The power generation system of this invention includes a methanol-water hydrogen production module, a CO deep purification module, a gas regulation module, a compatible PEMFC stack, and an intelligent control module connected in sequence. Unlike the traditional pure hydrogen system's "hydrogen production-purification-compression-power generation" structure, it eliminates PSA purification and pure hydrogen compression steps, reducing system construction and fuel costs. Furthermore, it reduces several core devices, simplifies the structure, and shrinks the system size, making it suitable for vehicle-mounted and portable power supply scenarios. Through flow channel optimization and pressure regulation, the power generation efficiency reaches 92%~95% of traditional systems, and even after 2000 hours of continuous operation, the performance degradation rate remains less than or equal to 5%. In addition, the CO2 in the hydrogen-rich gas mixture is an inert gas, which can reduce the risk of combustion and explosion in the event of hydrogen leakage.

The ammonia production system comprises a hydrogen source and a hydrogen compression unit, adapted to compress hydrogen from the hydrogen source. The system further comprises a nitrogen source and a syngas compressor, adapted to receive nitrogen from the nitrogen source and hydrogen from the hydrogen compression unit, and further adapted to compress a syngas including a mixture of hydrogen and nitrogen and deliver the compressed gas mixture to an ammonia synthesis module. The nitrogen source is fluidly coupled to the hydrogen compression unit, such that in use the hydrogen compression unit compresses a blend containing hydrogen and nitrogen.

This utility model provides an electrically controlled PSA multi-stage compression system for hydrogen production from coke oven gas, including a control system, a first-stage hydrogen compressor, a second-stage hydrogen compressor, a third-stage hydrogen compressor, a cooler, a flow meter, a temperature and pressure transmitter, an adsorption tower, a coarse desulfurization tower, a desulfurization tower, an oil filter tank, a pre-hydrogenation converter, a second-stage hydrogenation converter, a steam heater, a temperature controller, and a gas analyzer. The control system transmits measurement data from the instruments and analyzer to the control system, which controls the compressor and temperature control equipment. Coke oven gas enters the first-stage hydrogen compressor for initial pressurization, then enters the cooler for cooling, then enters the adsorption tower, then enters the coarse desulfurization tower to remove inorganic sulfur, and then enters the second-stage hydrogen compressor for secondary pressurization, then enters the oil filter tank, then enters the steam heater for heating, then enters the pre-hydrogenation converter, then enters the temperature controller for temperature adjustment, then enters the second-stage hydrogenation converter, and finally enters the desulfurization tower and the third-stage hydrogenation compressor for further pressurization of hydrogen.

The utility model discloses a low temperature adsorption device for hydrogen liquefaction, and the device comprises a raw material hydrogen compression and purification unit X100, a low temperature heat exchanger E100, a gas reheater E200, a low temperature adsorber A100A, a low temperature adsorber A100B, an 80K cold box X200 and a plurality of control valves which are connected with each other. The scheme can continuously and efficiently produce purified hydrogen, and has the advantages of simple process operation, safety and reliability, no nitrogen consumption, no moving equipment and low energy consumption.

The application discloses a kind of energy storage energy supply control method of hydrogen production energy supply system and related device, comprising: continuously generating hydrogen by hydrogen production reaction device, after pretreatment, it is transported to delivery shunt pipeline;Real-time filling demand is obtained, the real-time filling amount of current hydrogen to be filled is calculated, control pipeline valve opens filling passage, and hydrogen is transported to hydrogen equipment to complete real-time filling;Difference between hydrogen production total amount and real-time filling amount is calculated, determine the residual hydrogen amount in delivery shunt pipeline, control pipeline valve switches to storage passage, and the hydrogen of residual hydrogen amount is transported to hydrogen compression device;The hydrogen of residual hydrogen amount is compressed to preset high pressure state, and transported to high pressure hydrogen storage tank and stored sealingly.The application sets filling passage and storage passage, and switches pipeline valve by calculating hydrogen flow value, effectively improves the energy storage function safety and efficiency of hydrogen production energy supply system.

This invention relates to the field of compressor technology, and in particular to a four-cylinder symmetrical hydrogen compression cylinder, comprising a dual-shaft reciprocating cylinder. A first compression section and a second compression section are drivenly connected to the left end of the dual-shaft reciprocating cylinder, with the first compression section located at the end furthest from the dual-shaft reciprocating cylinder. A third compression section and a fourth compression section are drivenly connected to the right end of the dual-shaft reciprocating cylinder, with the fourth compression section located at the end furthest from the dual-shaft reciprocating cylinder. The second compression section has a first compression storage chamber and a second compression storage chamber on its left and right sides, respectively. The third compression section has a third compression storage chamber and a fourth compression storage chamber on its left and right sides, respectively. This invention can improve compression efficiency.

This invention relates to the field of hydrogenation reaction technology, specifically to a continuous hydrogenation reaction apparatus and method, comprising a reactor shell, a feed tank, and a supplementary hydrogen compressor. A distribution system is installed within the reactor shell, including a distribution plate and an opening adjustment mechanism within the plate. Multiple catalyst modules are concentrically arranged within the reactor shell, dividing the reactor into a central reaction zone and an outer reaction zone. After purification by a high-pressure feed filter, the feed enters the reactor shell. Based on real-time feedback, the distribution system within the reactor shell distributes the mixed gas-liquid feed stream to the central and outer reaction zones in a specific ratio. Products from the central and outer reaction zones are combined and output. The entire system prioritizes light components and readily reactants in the central vertical tube zone for rapid, mass-transfer-controlled reactions, while guiding heavy components and less reactive substances to the outer annular gradient bed for deep, long-residence-time hydrogenation reactions.

The present disclosure provides a hydrogen supply system including a first refrigerant circuit including a first refrigerant line along which a refrigerant circulates and a first heat exchanger, a first compressor, a second heat exchanger, and a first expansion valve disposed in series on the first refrigerant line. The system also includes a second refrigerant circuit including a second refrigerant line along which a refrigerant circulates and a second heat exchanger, a second compressor, a third heat exchanger, and a second expansion valve disposed in series on the second refrigerant line. The system also includes a coolant circuit including a coolant line along which a coolant circulates in selective heat exchange with the refrigerant circulating in the first refrigerant circuit and the refrigerant circulating in the second refrigerant circuit, and a hydrogen compression tank disposed on the coolant line and configured to store a metal hydride. Hydrogen gas is stored and compressed by the metal stored in the hydrogen compression tank.