123 results about "Hydrogen compressor" patented technology

The invention discloses a piston type hydrogen compressor cylinder body, a cylinder body assembly and a hydrogen compressor, and relates to the technical field of hydrogen compressors, the cylinder body assembly and the hydrogen compressor both comprise the cylinder body, the cylinder body comprises a cylinder barrel, the cylinder barrel is provided with a cylinder cover and a piston rod seat, and a cylinder sleeve is lined in the cylinder barrel; the inner end of the cylinder cover extends into the cylinder sleeve and provides radial support for the cylinder sleeve, one end of the cylinder sleeve is supported on the piston rod seat, and the other end of the cylinder sleeve is provided with a sealing assembly. The sealing assembly comprises a main sealing ring and a spring which are arranged in a cavity gap between the cylinder barrel and the cylinder cover, the main sealing ring serves as an axial sealing piece in the cavity gap and is attached to the end of the cylinder sleeve, and the spring is arranged on the side, away from the cylinder sleeve, of the main sealing ring and serves as an elastic supporting structure for supporting the main sealing ring. The direction of supporting force of the spring to the main sealing ring is in the axis direction of the cylinder barrel. The structural design adopted by the scheme is beneficial to guaranteeing the reliability of the hydrogen compressor.

The invention discloses a hydrogen compressor test device and a test method.The test device comprises a gas storage bottle set, two inlet buffer tanks, two testers, two outlet buffer tanks and a back pressure valve which are sequentially communicated through pipelines, and the inlet buffer tanks and the testers are connected in parallel; outlets of the back pressure valves are communicated to the two groups of inlet buffer tanks, and the two groups of back pressure valves are arranged in parallel; the pipe diameters of the inlet pipelines and the outlet pipelines corresponding to the inlets and the outlets of the two groups of testing machines are different, so that the displacement is controlled according to the pressure. The system has the characteristics of wide working condition, high pressure, large discharge capacity, automatic control and gas recovery, can monitor performance parameters such as temperature, pressure, discharge capacity and the like in a platform operation process in real time, meets the requirements of various hydrogen energy compressor type tests, predelivery tests and scientific research tests, and provides support for design, simulation and performance evaluation of a unit.

An offshore hydrogen production platform hydrogen production equipment cooling system comprises a gas-liquid treater, a hydrogen purification device, a chilled water machine, a hydrogen compressor and a hydrogenation machine, an inlet of the gas-liquid treater is connected with an electrolytic bath, and an outlet of the gas-liquid treater is sequentially connected with a hydrogen passivation device, the hydrogen compressor, a buffer gas tank, the hydrogen compressor, a hydrogen storage tank and the hydrogenation machine. The hydrogen adding machine is communicated with the hydrogen-powered ship and provides hydrogen for the hydrogen-powered ship, and the refrigerating unit is connected with the hydrogen passivating device through a pipeline to form a circulating pipeline. Aiming at the characteristics of offshore and shallow sea areas and a fixed hydrogen production platform, when hydrogen production equipment is cooled, required fresh water is provided through cooling of the air cooling radiator arranged on the main deck of the platform, so that the situation that seawater with poor cleanliness in the offshore and shallow sea areas flows through a plate heat exchanger to cool the fresh water to be provided is avoided; the cooling efficiency is improved.

The utility model belongs to the technical field of coal tar hydrogenation process, and relates to a sealing gas conveying system for sealing a circulating hydrogen compressor, which comprises a conveying pipeline and heating equipment, the conveying pipeline is connected with the outlet end of the compressor and used for conveying sealing gas. The heating device is arranged on the conveying pipeline and used for heating the sealing gas. According to the utility model, the process gas at the outlet end of the compressor is heated through the additionally arranged heating equipment, so that the process gas can be conveniently heated to the required temperature to serve as sealing gas, the load of the compressor does not need to be increased, unnecessary energy consumption of the compressor is avoided, and in addition, in the actual operation process, the energy consumption is reduced. The load of the compressor can be reduced according to actual process requirements, so that the process gas temperature at the outlet end of the compressor is reduced, and energy conservation and consumption reduction of the compressor are realized.

The invention discloses a method for preparing industrial hexane with ultralow benzene content through pre-hydrogenation. The method comprises the following steps: light naphtha, hydrogen and a hydrogenation catalyst are subjected to a hydrogenation reaction in a hydrogenation reactor for desulfurization and dearomatization, and a first mixture is obtained; feeding the first mixture into a gas-liquid separator to respectively obtain a liquid-phase product and a hydrogen-containing gas-phase product, and separating hydrogen from the gas-phase product through a circulating hydrogen compressor for recycling; and sequentially carrying out second rectification and third rectification on the liquid-phase product to obtain a heavy component substance, and adsorbing the heavy component substance through a molecular sieve. According to the method, by means of front hydrogenation reaction and rear molecular sieve adsorption, on one hand, the reaction load of molecular sieve adsorption is greatly reduced while the reaction activity of the hydrogenation reaction is improved; on the other hand, an extracting agent does not need to be added, other gas-phase and liquid-phase components are not introduced except hydrogen, the preparation process is greatly simplified, and the benzene content in the obtained cyclohexane is smaller than 5 ppm.

The utility model discloses a decontamination structure for heat exchange equipment of a hydrogen compressor cooler, which relates to the technical field of heat exchange equipment and comprises a shell, tube plates are arranged at two ends of the shell, a heat exchange tube is arranged between the two tube plates, tube boxes are arranged at two ends of the shell and on the outer sides of the tube plates, the heat exchange tube is communicated with the tube boxes on two sides, and the tube boxes are communicated with the heat exchange tube. The heat exchanger comprises a shell, heat exchange pipes are arranged in the shell, baffle plates are arranged in the shell and between the heat exchange pipes in a staggered mode, a collecting box body is arranged at the lower end of the shell and between every two adjacent baffle plates, a cleaning pipe is arranged at the lower end of each collecting box body, and a communicating box body is arranged between the lower end of each collecting box body and the corresponding cleaning pipe. A liquid inlet pipeline is arranged on the front side of the cleaning pipe, and a liquid discharge pipeline is arranged on the rear side of the cleaning pipe, so that the cooling effect of cooling equipment is ensured, the outlet temperature of the hydrogen compressor is maintained at an operation index, the adsorption effect is ensured, the service life is prolonged, the leakproofness of a cooler is ensured, and a cooler tube bundle is prevented from being damaged.

The present application belongs to the technical field of hydrogen storage material detection equipment, and particularly relates to a device for testing or analyzing hydrogen storage materials by means of their chemical or physical properties, and more particularly to a hydrogen storage material corrosion resistance detection device. The device comprises a hydrogen storage material detection box, a sealed detection seat, an electromagnetic valve, a high-pressure hydrogen cylinder, a hydrogen compressor and a hydrogen storage material to be detected. A sealed heat preservation box is fixedly installed on the inner side of the hydrogen storage material detection box, and the sealed detection seat is fixedly connected to the inner side of the sealed heat preservation box. The present application organically integrates high-pressure environment simulation and a three-electrode electrochemical test system through integrated design, and can complete corrosion condition adjustment and performance characterization without opening the sealed cavity. The hydrogen storage material to be detected is always in a simulated real service high-pressure, specific temperature and complex medium environment, fundamentally avoiding the change of corrosion state caused by the sample being separated from the original environment, and ensuring that the collected corrosion kinetics parameters, corrosion product film characteristics and other data are real and reliable.

A hydrogen production apparatus for a wind turbine is provided, including an electrolytic hydrogen production unit for producing hydrogen gas from electrical energy generated by the wind turbine, a compressor unit for compressing the produced hydrogen gas, and a sensor unit fluidly connected to the compressor unit for detecting an oil contamination of the compressed hydrogen gas. Thus, an oil contamination of the hydrogen gas produced by the hydrogen production apparatus is continuously monitored. Further, oil contamination of the hydrogen gas is detected before the hydrogen gas is discharged by the hydrogen production apparatus.

To provide a compressor unit which includes a plurality of stages of compressors and is suitable for compressing hydrogen gas generated by a water electrolysis system.SOLUTION: The compressor unit 10 is used to compress the hydrogen gas generated by the water electrolysis system 25. The compressor unit 10 includes a screw compressor 12 that hydrogen gas containing moisture generated from the water electrolysis system 25, a dryer 14 that is disposed on the downstream side of the screw compressor 12 and dries the hydrogen gas, and a reciprocating compressor 16 that further compresses the hydrogen flowing out from the dryer 14.SELECTED DRAWING: Figure 1

This invention relates to the field of hydrogen compressor technology, specifically a reciprocating hydrogen compressor, comprising a housing, a base fixedly connected to the lower end of the housing, a drive assembly inside the base, a compression mechanism inside the housing, the compression mechanism including a cylinder, a first piston slidably connected inside the cylinder, a connecting pipe fixedly connected inside the cylinder, a first one-way valve inside the connecting pipe, an exhaust assembly inside the cylinder, and an inflation mechanism at the upper end of the cylinder. The inflation mechanism includes a sliding rod, one end of which is fixedly connected to the first piston, and a second piston fixedly connected to the upper end of the sliding rod. A cylinder liner is fitted around the second piston, an inlet pipe is fixedly connected inside the cylinder liner, and a water pumping assembly is located at the upper end of the cylinder liner. When the first piston moves downward, it drives the second piston to push a fixed amount of hydrogen from the cylinder liner into the cylinder. The downward movement of the second piston also cooperates with the water pumping assembly to cool the cylinder.

A hydrogen-rich blast furnace ironmaking system based on mass-energy conversion, comprising a water electrolysis system (2). The water electrolysis system (2) is separately connected to a hydrogen storage tank (3) and an oxygen storage tank (4); a gas outlet of the hydrogen storage tank (3) is connected to a hydrogen compressor (5); an outlet of the hydrogen compressor (5) is connected to a hydrogen buffer tank (6); the hydrogen buffer tank (6) is connected to a hydrogen injection valve group (7); the hydrogen injection valve group (7) is connected to a hydrogen preheating system (8); and the hydrogen preheating system (8) is connected to a tuyere of a blast furnace body (1) or a hydrogen injector at the lower portion of the furnace body.

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 utility model discloses a multi-gas-valve cylinder cover structure of an ionic liquid hydrogen compressor, and belongs to the technical field of hydrogen compression equipment. Comprising an air valve assembly, an exhaust valve support, an air inlet valve support, a four-air-valve cylinder cover, a three-air-valve cylinder cover, a cylinder cover plate, a cylinder cover plate bolt, an air inlet connector and an exhaust connector. The four-air-valve cylinder cover can be provided with four air valve assemblies, and the three-air-valve cylinder cover can be provided with three air valve assemblies. By means of the structure, the intake and exhaust response speed of the ionic liquid hydrogen compressor is effectively increased, system power consumption is reduced, and effective control and rapid conversion of gas are achieved. Meanwhile, the space utilization rate is high, the maintenance cost is low, and wide application of the ionic liquid hydrogen compressor is facilitated.

The utility model relates to the technical field of chemical production, and discloses a methane hydrogen recovery device which comprises a regeneration gas unit, a regeneration gas separation tank, a methane hydrogen compressor, a first overline pipeline and a second overline pipeline, the regeneration gas separation tank is connected with the regeneration gas unit through a second main pipeline, the methane hydrogen compressor is connected with the regeneration gas separation tank through a third main pipeline, and the methane hydrogen compressor is connected with the hydrogen production device through a fourth main pipeline; the first overline pipeline is connected with the first main pipeline and the second main pipeline, the second overline pipeline is connected with the first main pipeline and the third main pipeline, and each overline pipeline is provided with a regulating valve. Compared with the prior art, the methane hydrogen recovery device fully recovers the surplus methane hydrogen of the ethylene device and uses the surplus methane hydrogen as a raw material of the hydrogen production device, so that the problem that the surplus methane hydrogen of the ethylene device in the prior art can only release a torch is solved.

This invention discloses a hydrogen compressor system and control method, belonging to the field of compressor technology. The hydrogen compressor system includes a multi-stage compression unit, comprising a pre-compression stage and a post-compression stage. A purification device is provided between the pre-compression stage and the post-compression stage. The purification device includes a refrigerated dryer, a molecular sieve purifier, and a dust filter. The molecular sieve purifier is equipped with a regeneration heat exchanger, and a circulation pipeline is provided between the pre-compression stage and the regeneration heat exchanger. The molecular sieve purifier is also equipped with a regeneration gas feedback pipeline. The control method described herein is for the hydrogen compressor system. This solution not only ensures good purity of the product gas but also achieves efficient utilization of energy and hydrogen during the preparation process.

The dechlorination system comprises a reforming reaction product separator, a reforming hydrogen ammonium salt trapping tank, a reformate ammonium salt trapping tank, a reforming hydrogen dechlorination tank, a reformate dechlorination tank, a hydrogen recontact part and a reaction product separation pump. The reforming recycle hydrogen is treated by the reforming hydrogen ammonium salt trapping tank, so that most ammonium salt crystals separated out from a gas phase are removed, and the probability of ammonium salt blockage and corrosion leakage of a reforming recycle hydrogen compressor and a reforming mixed feeding heat exchanger is reduced; a reformed hydrogen ammonium salt trapping tank and a reformed oil ammonium salt trapping tank are arranged and used for collecting most ammonium chloride salt, the ammonium salt blocking probability of downstream equipment and pipelines is reduced, the chlorine adsorption amount of the dechlorination tank is reduced, meanwhile, the service life of a dechlorination agent is prolonged by 10-20%, and the annual consumption of the dechlorination agent of the device and the annual discharge amount of a waste dechlorination agent are reduced.

This technology enables stable, high-speed rotation of the impeller in multi-stage centrifugal compressors for hydrogen applications. [Solution] The multi-stage centrifugal compressor for hydrogen comprises a rotating shaft, a plurality of impellers through which the rotating shaft is inserted and which rotate integrally with the rotating shaft, a casing housing the rotating shaft and the plurality of impellers, and journal bearings positioned at both ends of the rotating shaft to support the rotating shaft in the casing, and compresses hydrogen gas in multiple stages with the plurality of impellers. The plurality of impellers are closed impellers made of aluminum alloy with hydrogen embrittlement resistance. The journal bearing is a squeeze film damper bearing having a bearing portion that supports the rotating shaft and a squeeze film damper portion positioned between the bearing portion and the casing.

The invention discloses a skid-mounted hydraulically-driven hydrogen compressor which comprises a base, a hydraulic system, a cooling system, a pipe frame system, a pressure cylinder and a control system, wherein a buffer tank is mounted at the top of the cooling system; the cooling system is used for providing circulating cooling liquid for the cooling structures of the hydraulic system and the pressure cylinder; various process gas pipelines, operating valves and instruments are integrated on the pipe frame system, the buffer tank is communicated with the pressure cylinder through the corresponding process gas pipelines, and the pipe frame system is provided with channels for laying various water pipelines; and a hydraulic pipeline communicated with the hydraulic system and the pressure cylinder is mounted in a mounting space formed among the cooling system, the bottom surface of the pipe frame system and the base. Through reasonable layout design, each system becomes a modular unit with a relatively independent structure, independent assembly and disassembly of system parts can be realized, and on the premise of meeting functional requirements of each system, the horizontal floor area of equipment is compressed to the maximum extent, and the site occupation cost is reduced.

The utility model provides a gas leakage detection device for a piston ring of a mechanical piston type compressor, and belongs to the field of high-pressure hydrogen gas leakage collection and detection. The problem that after the piston ring leaks gas, the pressure change of the low-pressure side needs to be detected, and leaked gas needs to be collected is solved. The device comprises a storage cavity used for storing leaked hydrogen; the diaphragm divides the accommodating cavity into an expansion cavity and a balance cavity; and the leakage-proof indication assembly is arranged on the balance cavity, and when air leakage occurs, the diaphragm expands and pushes the leakage-proof indication assembly. The device is mainly used for leak detection and gas collection of the mechanical piston type hydrogen compressor.

This invention relates to a non-stop maintenance process and apparatus for chlorosilane production. The apparatus comprises, in sequence, a hydrogen main, a second switching valve, a hydrogen buffer tank, a ninth switching valve, a hydrogen compressor, a static mixer, a first heat exchanger, a seventh switching valve, a heater, and a fluidized bed reactor. The other inlet of the static mixer is connected in sequence to the STC buffer tank and the tenth switching valve. The first and second ends of the first heat exchanger are respectively connected to the outlet of the static mixer and one end of the seventh switching valve. The third end of the first heat exchanger is connected to subsequent processes via a sixth switching valve, and the second end of the first heat exchanger is connected to subsequent processes via a first branch and a fifth switching valve. This maintenance process and apparatus prevents bed damage and material clogging at the bottom and internal components of the tower during fluidized bed cooling and depressurization, reducing the workload during fluidized bed restart and avoiding personnel entering confined spaces, thus reducing the risk of accidents.

The application relates to an ionic liquid hydrogen gas compressor ionic liquid circulation and power-free injection liquid supplementing device, which comprises a hydrogen gas pressurizing cylinder, a gas-liquid separator and an ionic liquid circulation system; the hydrogen gas pressurizing cylinder comprises a nozzle and a gas compression cavity; the ionic liquid circulation system comprises a pressure reducing valve, an ionic liquid tank and a proportional valve; high-pressure gas-liquid mixed fluid discharged from the compression outlet of the hydrogen gas pressurizing cylinder enters the gas-liquid separator, pure hydrogen gas separated out is stored into a hydrogen storage bottle, and the separated pure ionic liquid is reduced to a safe pressure through the pressure reducing valve and then enters the nozzle through the proportional valve, is atomized by the nozzle and is sprayed back into the gas compression cavity of the hydrogen gas pressurizing cylinder, and the leaked ionic liquid in the pressure reducing valve is poured back into the ionic liquid tank. The application utilizes the high pressure existing in the gas-liquid separator, directly sprays into the gas cavity of the hydrogen compressor in the form of atomization through the nozzle after a certain degree of pressure reduction, and plays the roles of cooling, heat dissipation and energy efficiency improvement.

The invention relates to the technical field of coal tar, in particular to a multi-stage reactor for full-fraction hydrogenation of medium and low temperature coal tar. The new hydrogen treatment mechanism comprises a first outer box fixedly connected to the upper end face of the base, a deoxidation assembly, a convergence funnel, a desulfurization assembly and a drying assembly are sequentially arranged in the first outer box from top to bottom, and a new hydrogen compressor and an output assembly are arranged on the two sides of the first outer box correspondingly; the new hydrogen compressor and the output assembly communicate with the interior of the first outer box. According to the circulating hydrogen treatment mechanism, through a deoxidation assembly, a desulfurization assembly, a drying assembly and an output assembly in the new hydrogen treatment mechanism, pretreatment of deoxidation, desulfurization and drying is sequentially conducted on new hydrogen before the new hydrogen is input into the reactor, and harmful impurities in the hydrogen can be effectively removed; poisoning and inactivation of the catalyst are avoided, side reaction is inhibited, and the reactor and subsequent equipment are protected from corrosion.

Present disclosure relates to process for increasing the purity and recovery of hydrogen product stream obtained from a dehydrogenation process. The dehydrogenated effluent stream is separated to obtain the net gas stream. The net gas stream is compressed in a hydrogen compressor section. Even after compressing the net gas, traces of toluene are still present in the gas phase. Applicants have found to recover these toluene traces, the compressed gas from the hydrogen compressor section is chilled in a vapor economizer followed by a chiller to produce a chilled stream at a temperature of from about -27°C to about 17°C. This process also helps maintain the Wobbe Index of the hydrogen product stream in the range of about 44 to about 49 MJ / m3. In another embodiment, the compressed net gas stream from the hydrogen compressor section is adsorbed in an adsorption unit to separate hydrogen product stream from the recycle gas stream, wherein the recycle gas stream is completely recycled to the hydrogen compressor.

The invention relates to a method for preparing a high-value oil product through synergistic co-hydrogenation of waste plastics and waste lubricating oil. The method comprises the following steps: a) preparing waste plastics, waste lubricating oil and a catalyst in a raw material tank to form uniform mixed slurry; b) conveying the mixed slurry through a high-pressure feed pump, mixing the mixed slurry with hydrogen in a pipeline, preheating the mixed slurry to a certain temperature in a preheater, and carrying out a co-hydrogenation reaction in a multiphase flow reactor; c) a reaction product output by the multiphase flow reactor passes through a first-stage separator and a second-stage separator, a gas-phase product and a heavy liquid-phase product are obtained, part of the heavy liquid-phase product returns to the raw material tank for continuous reaction, and the rest part of the heavy liquid-phase product serves as fuel oil to be output from a device; and d) separating the gas-phase product by a three-stage separator, feeding the top gas into a recycle hydrogen compressor, feeding the bottom liquid into a fixed bed reactor for hydrofining, and separating the reaction product by a fractionating tower to obtain the light white oil and the lubricant base oil.

The utility model provides a split type interference assembly oil cylinder piston structure of a hydrogen compressor, and belongs to the technical field of hydrogen compressor hydraulic oil cylinders. The problems that in an existing oil cylinder piston, a piston rod and a piston are assembled in the mode that a clamping key is matched with a screw, in the operation process of the oil cylinder piston, the screw is broken, the inner surface of an oil cylinder is scratched, and leakage or equipment damage is caused are solved. The piston comprises a piston rod and two split pistons, the piston rod is symmetrically sleeved with the two split pistons at intervals, a large space ring is arranged in a gap between the two split pistons, the large space ring is in interference fit with the gap between the two split pistons, small space rings are arranged at one ends of the two split pistons, and the small space rings are in interference fit with the gap between the two split pistons. One end of the split type piston abuts against the small space ring and forms limiting fit with the small space ring, and the large space ring and the small space ring are each of a split structure and are arranged on the piston rod in a sleeving mode. The tool is mainly used for assembling and fixing the oil cylinder piston in the hydrogen compressor.

The invention belongs to the technical field of ethylene glycol synthesis, and particularly relates to a gas phase circulation component self-control method for a dimethyl oxalate hydrogenation ethylene glycol preparation device. Comprising the steps that (1) the fresh hydrogen supplementing amount FIC001 is controlled through the circulating hydrogen compressor outlet pressure PIC001 and the theoretical hydrogen demand amount FIC006, the circulating hydrogen compressor outlet pressure PIC001 is kept within a set range with the PIC001 as a main variable, the FIC001 as an auxiliary variable and the FIC006 as a feedforward signal, and FIC006 = FT004 * 871.05; (2) under the condition that the hydrogen-ester ratio AIC004 is given, the system purge flow FT002 is adjusted through a formula, so that the reaction molar ratio of hydrogen to dimethyl oxalate is accurately controlled.

The utility model relates to the technical field of hydrogen production, storage and transportation, in particular to a low-temperature adsorption type hydrogen production and storage and transportation system. The system comprises a liquefied natural gas storage tank, a cold energy recoverer, a heater, a methane cracking furnace, a separator, a desorbed gas compressor, a hydrogen compressor, a low-temperature adsorption tank and a low-temperature adsorption type gas cylinder, and the liquefied natural gas storage tank, the cold energy recoverer, the heater and the methane cracking furnace are sequentially communicated through pipelines. The outlet end of the methane cracking furnace is connected to the inlet of the heater through a pipeline, the outlet of the heater is connected with the separator through a pipeline, and the outlet of the separator is respectively connected to the cold energy recoverer and the pipeline between the cold energy recoverer and the heater through two pipelines. Through cooperation of the cold energy recoverer, the heater, the methane cracking furnace, the separator, the desorbed gas compressor, the hydrogen compressor, the low-temperature adsorption tank and the low-temperature adsorption type gas cylinder, efficient production and high-density storage and transportation of hydrogen are realized by taking natural gas as a raw material.

The invention relates to the field of data processing, in particular to a hydraulic drive hydrogen compressor fault monitoring method, which comprises the following steps: acquiring a vibration signal and a pressure signal of a compressor cylinder, and determining a dynamic window length through autocorrelation analysis of the pressure signal. In the window, empirical mode decomposition is carried out on the vibration signals, instantaneous energy is extracted, kurtosis is analyzed, and correlation coefficients between IMF component pairs are calculated. And taking the product of the kurtosis and the correlation coefficient as a correlation pulse index, and constructing a hydrogen embrittlement possibility index in combination with the pressure ratio to evaluate the hydrogen embrittlement risk. The hydrogen embrittlement possibility indexes exceeding the background level are further accumulated, the hydrogen embrittlement damage accumulation degree is obtained, and whether the compressor has the hydrogen embrittlement fault or not is judged after normalization. The dynamic window length is determined through self-correlation analysis, noise is effectively filtered, the signal-to-noise ratio is improved, the hydrogen embrittlement risk is comprehensively evaluated, false alarm and missing alarm are reduced, meanwhile, continuous monitoring and real-time hydrogen embrittlement development tracking are achieved, and the safety of equipment operation is improved.

This invention belongs to the field of hydrogen energy, specifically relating to a condition monitoring and fault prediction system for hydrogen compressors. The system includes a data acquisition module, a data preprocessing module, a condition baseline module, and a safety risk monitoring module. The data acquisition module collects the operating parameters of the hydrogen compressor; the data preprocessing module preprocesses these parameters; the condition baseline module establishes an operating condition baseline based on the operating parameters; and finally, the safety risk monitoring module monitors deviations and hydrogen embrittlement risks. This invention provides a condition monitoring and fault prediction system for hydrogen compressors, aiming to solve the problem of existing technologies being unable to monitor the operating status of hydrogen compressors.