221 results about "Product gas" patented technology

The invention relates to the technical field of filtering devices, and discloses compressed air self-cleaning type filtering equipment and a back flushing method, the compressed air self-cleaning type filtering equipment comprises a filtering unit, and the filtering unit comprises a filtering net; the back flushing unit comprises a main back flushing mechanism and an auxiliary back flushing mechanism, the main back flushing mechanism conducts back flushing on the filter screen through compressor finished product gas, and the auxiliary back flushing mechanism comprises a gas storage tank and an inflation pump and conducts back flushing on the filter screen through gas stored in the gas storage tank; the adjusting unit comprises a control valve and a sealing plate, the adjusting unit further comprises a transmission mechanism, and when the sealing plate rotates, the working state of the control valve is changed through the transmission mechanism. According to the back flushing device, the auxiliary back flushing mechanism is arranged to perform back flushing on the filter screen, when compressed air introduced by the main back flushing mechanism is insufficient, the auxiliary back flushing mechanism is switched, high-pressure air in the air storage tank is utilized to perform back flushing on the filter screen, and the situation that the cleaning effect is poor due to insufficient air pressure is avoided.

The invention discloses a real-time monitoring data control method for adsorption separation and an adsorption separation device, and relates to the technical field of adsorption and analysis regulation and control. The method comprises the following steps: setting a first cleanliness threshold value of finished gas and a second cleanliness threshold value of desorption gas; according to the current state of the first cleanliness and the current state of the second cleanliness, the regeneration medium flow of the analysis process is dynamically adjusted; or when the first cleanliness reaches the first cleanliness threshold value and the second cleanliness reaches the second cleanliness threshold value, the current adsorption process is ended, and the working mode is switched; if the second cleanliness does not reach the threshold value, the regeneration medium flow is increased until the switching condition is met. Saturation regulation is carried out by monitoring the dual states of the finished gas and the desorption gas in real time, actual working condition fluctuation can be responded in a self-adaptive mode, the quality stability of the finished gas is guaranteed, meanwhile, the problem that regeneration is insufficient or regeneration media are excessively consumed is solved, and operation energy consumption is remarkably reduced.

The invention relates to the technical field of renewable energy source hydrogen production, and discloses an off-grid alkaline electrolysis total hot standby method based on multi-source waste heat deep integrated recovery, which comprises the following steps: S1, constructing a frame which comprises an electrolytic cell array, a graded waste heat recovery loop, a phase change heat storage tank and an auxiliary and emergency assembly; s2, synchronously capturing multi-source waste heat of the system: starting a circulating power assembly of a graded waste heat recovery loop, and synchronously collecting process cooling waste heat and product gas waste heat generated in the operation process of the electrolytic cell array through the graded waste heat recovery loop; and S3, heat storage and cascade distribution. By constructing an independent closed type grading waste heat recovery loop, alkali liquor cooling waste heat in the process of operating an electrolytic cell captures sensible heat of high-temperature wet oxygen at an outlet of an oxygen separator through the waste heat recovery heat exchangers connected in parallel, direct loss of the two kinds of waste heat is avoided, external power or fuel does not need to be relied on for supplying energy to hot standby, and energy consumption in the hot standby stage is greatly reduced.

The utility model discloses a helium dehydrogenation and purification device taking air as regenerated gas. The helium dehydrogenation and purification device comprises a catalytic dehydrogenation reactor, a first adsorption reactor and a second adsorption reactor, a refrigerant of the heat exchanger is connected with a feed gas source and a compressed air source, a refrigerant outlet of the heat exchanger is connected with an inlet of the catalytic dehydrogenation reactor, an outlet of the catalytic dehydrogenation reactor is connected with a heating medium inlet of the heat exchanger, and a heating medium outlet of the heat exchanger is connected with an inlet of the steam-water separator; inlets of the first adsorption reactor and the second adsorption reactor are connected with an outlet of the steam-water separator and a regenerated waste gas outlet; outlets of the first adsorption reactor and the second adsorption reactor are connected with a product gas outlet and a compressed air source; a hydrogen analyzer and a flow meter are arranged on a pipeline for connecting a refrigerant inlet of the heat exchanger with the feed gas source, and a flow controller and a flow control valve are arranged on a pipeline for connecting the refrigerant inlet of the heat exchanger with the compressed air source; the flow controller is electrically connected with the hydrogen analyzer and the flow meter and can control the opening degree of the flow control valve. The problem that hydrogen-containing gas cannot be provided as regeneration gas in most helium catalytic dehydrogenation purification scenes is solved.

The invention belongs to the field of hydrogen energy, and discloses a hydrogen recovery system and method for a hydrogenation mother station. The system comprises a hydrogen purification device, a product gas and recovery gas compressor, and an integrated pipeline network connecting feed gas, product gas, desorbed gas and a long pipe vehicle. According to the system, through a plurality of recovery paths, hydrogen which is not qualified in purification, desorbed gas and hydrogen replaced in the long pipe vehicle can be recovered to a fuel gas pipe network, a raw material gas inlet or a desorbed gas system respectively, and high-purity hydrogen can be used for carrying out online regeneration on a penetrating adsorbent. According to the invention, comprehensive recovery of the vented combustible gas in the hydrogenation mother station is realized, the hydrogen recovery rate is obviously improved, and the product gas quality and supply stability are ensured.

The application discloses a helium low-temperature purification pressure building device and a pressure building method, which comprise a flash evaporation unit, a purification unit and a heat recovery unit connected in sequence. In the application, the product gas of the liquid air separator is used to build pressure for the adsorber under the regeneration pressure building in the high-pressure working state, so that the adsorber under the working state is prevented from charging pressure for the adsorber under the regeneration pressure building and the pressure of the adsorber under the working state is prevented from being lost. Since the pressure difference between the liquid air separator and the adsorber under the regeneration pressure building is large, the high-pressure impact is easy to cause the damage of the equipment, the pressure building process is arranged in the purification process, the time required for the pressure building is reduced, the adsorber under the working state is saturated, the adsorber under the regeneration state is built in pressure, automatic switching can be realized, the continuous production of the product high-purity helium gas is realized, and the use demand of the high-purity gas is met.

The application provides a hydrogen deep removal and moisture removal method. High-concentration raw gas is dynamically mixed with dry low-concentration reflux gas in a mixer to form mixed gas, so as to reduce the hydrogen content and reduce the reaction risk. After pressurized heating, oxygen with a precisely matched hydrogen concentration is injected into a reactor for reaction. The reactor is provided with an alternating fixed and rotatable cylinder, and the inner wall of the flow channel is coated with a catalyst; the corresponding cylinder speed is automatically adjusted based on real-time hydrogen concentration detection downstream, and the speed is accelerated when the concentration exceeds the standard to strengthen turbulent contact and prolong the reaction time, combined with the concentration threshold setting decreasing along the flow direction, so that the hydrogen is deeply removed to an ultralow level. The reaction generates moisture, most of which is separated by two-stage water cooling, and then is deeply adsorbed and dried to be completely removed to an ultralow content. Finally, the gas is divided into two parts, one part is output as product gas, and the other part is completely dried reflux gas which is recycled to the initial mixing step to reduce the reaction risk of high hydrogen content.

The invention belongs to the technical field of biomass gasification, and particularly relates to a preparation method of high-calorific-value biomass gas. The preparation method comprises the following steps: (1) performing pyrolysis reaction on a modified biomass raw material in a pyrolysis reactor to obtain pyrolysis gas and solid biochar; (2) enabling the pyrolysis gas and water vapor to flow into a fixed bed reactor filled with a catalyst layer in parallel from bottom to top, carrying out methanation reaction to obtain product gas, enabling the product gas to flow out from the top of the fixed bed reactor, dividing the product gas into three streams, namely product gas A, product gas B and product gas C, cooling the product gas A to 40-50 DEG C, returning the product gas A to the fixed bed reactor, and enabling the product gas B to flow into the fixed bed reactor; the product gas B directly returns to the fixed bed reactor, and the reaction gas C is cooled and then is collected as biomass fuel gas. According to the preparation method, the content of methane in the fuel gas and the calorific value of the fuel gas can be remarkably increased.

This invention provides an integrated device and method for gas ultrapurification, comprising: an integrated sealed cavity; an adsorption system disposed inside the integrated sealed cavity, the adsorption system being filled with at least one adsorbent; a temperature control system disposed inside the integrated sealed cavity, including independent refrigerant circulation loops and hot medium circulation loops, for temperature control of the adsorption system; and a gas pipeline system including a raw material inlet, a displacement gas inlet, a product gas outlet, and a desorption gas outlet, each interface being connected to the integrated sealed cavity; the temperature control system controls the temperature of the adsorption system, enabling the sequential execution of a series of processes within the integrated gas ultrapurification device under the condition of an inert gas flow: preheating and activation of the adsorbent, low-temperature adsorption purification of the gas, high-temperature desorption regeneration, and cooling of the adsorbent for later use. The method of this invention is simple, easy to operate, and has broad industrial application prospects.

This invention pertains to the field of hydrogen energy, specifically a high-carbon, low-hydrogen pressure swing adsorption (PSA) purification process system and method. The system, along the gas flow direction, sequentially includes a carbon-based conversion unit, a heat exchange-cooling-gas-liquid separation unit, a compressor, at least two switchable decarbonization and desulfurization towers, a fine desulfurization tower, a PSA unit, a desorbed gas buffer tank, a desorbed gas compressor, and a fuel gas tank. This invention increases the hydrogen fraction in the feed gas from 30-50% to 50-70% through carbon-based conversion, then removes total sulfur to ≤0.1ppm through multi-stage desulfurization and decarbonization, finally producing fuel cell-grade hydrogen with a purity of ≥99.97% via PSA. Simultaneously, the desorbed gas is pressurized, buffered, and then divided into two stages for reuse. This invention effectively improves hydrogen recovery rate and desorbed gas utilization rate, solving the problems of high energy consumption and adsorbent poisoning in the purification of high-carbon, low-hydrogen by-product gases. It is applicable to various feed gases such as coke oven gas, refinery gas, and methanol tail gas.

The utility model discloses a hydrogen sulfide synthesis skid-mounted system which comprises a liquid sulfur transfer module, a hydrogen sulfide synthesis module, a product gas pretreatment module, a product gas purification module, a tail gas treatment module and a public engineering module, the liquid sulfur transfer module, the hydrogen sulfide synthesis module, the product gas pretreatment module, the product gas purification module and the tail gas treatment module are sequentially communicated, and the product gas pretreatment module and the product gas purification module are both communicated with the liquid sulfur transfer module. According to the hydrogen sulfide synthesis skid-mounted system disclosed by the utility model, each functional component is modularized, the size of each module is configured in a coordinated manner and meets the transportation condition, corresponding process pipelines, instrument components, cables and the like can be prefabricated and mounted when leaving a factory, and debugging work can be carried out only by simple assembly and construction on a construction site; the workload of a construction site is greatly reduced, waste of installation materials is effectively reduced, and the device has the advantages of being small in occupied area, low in construction cost and the like.

The utility model provides a kind of crude argon tower unit and including the argon production system of the crude argon tower unit, crude argon tower unit includes crude argon tower, and the crude argon mixed gas after separation is accommodated with tower top space, and is communicated with crude argon condenser, and crude argon tower is equipped with the gas extraction pipeline of the communication of tower top space with downstream equipment in tower top, and gas extraction pipeline extracts part crude argon mixed gas from tower top space, forms product gas.The crude argon tower and including the argon production system of the crude argon tower directly extract product gas from the tower top space of crude argon tower, ensure pure gas phase gas, to improve the accuracy of flow detection, make equipment operation safer and more reliable;And the way of directly extracting product gas from tower top space, simple structure, without additional separation equipment, saves the manufacturing cost of overall equipment.

An adsorptive separation method is disclosed. The adsorptive separation method of the present invention is a method for adsorptively separating a first gas from a mixed gas using a plurality of adsorption beds provided with an adsorbent selectively adsorbing the first gas, characterized by comprising an adsorption step, a depressurization step, a first rinse step, a second rinse step, a depressurization desorption step, a purge step, a pressurization step, a pressure increasing equalization and step, a repressurization step. According to the present invention, in the second rinse step, a high-purity first gas is introduced into the adsorption bed at a first pressure, and in the depressurization desorption step, the first gas is compressed to the first pressure by a compressor in a process of being transferred to a high-pressure product vessel, thereby making it possible to provide an adsorptive separation method configured to reduce power consumption by pressurizing a product gas of atmospheric pressure or higher discharged in a blowdown step to a pressure at which a rinse is performed, and to reduce power consumption used to create a recirculation stream used for the rinse.

The utility model provides a water electrolysis product gas cleaning device and a water electrolysis system, and relates to the field of hydrogen production through water electrolysis. The water electrolysis product gas cleaning device comprises a separation tank and a mixing assembly, the mixing assembly is used for receiving to-be-cleaned product gas and fresh make-up water, the mixing assembly is used for mixing the to-be-cleaned product gas and the fresh make-up water to form a mixture, the mixing assembly communicates with the separation tank through a first channel, and the first channel is used for guiding the mixture into the separation tank; and the separation tank is used for separating clean product gas from the mixture. The mixing assembly is used for replacing filler in a traditional separation tank, the requirement for the large operation range of coupling of an electrolytic bath and renewable energy sources can be met, meanwhile, the mixing assembly is arranged outside the separation tank, filler does not need to be arranged in the separation tank, and therefore the overall height of the cleaning device for the water electrolysis product gas is reduced, and the cleaning device adapts to the low height limit requirement; and the application range is wider.

The invention provides a gas purification method and a gas purification device, which can efficiently utilize regeneration gas without a compressor and the like, can reduce the discharge gas amount of the regeneration gas, and can improve the recovery rate of product gas. Provided is a gas purification method in which an adsorption process for adsorbing and removing impurities in a raw material gas (G1) and a regeneration process for separating the impurities from the adsorption towers (2A, 2B, 2C) by heating the adsorption towers (2A, 2B, 2C) are repeatedly performed using three adsorption towers (2A, 2B, 2C), and the adsorption process is performed by at least one of the adsorption towers (2A, 2B, 2C). And a part of a purified gas (G2) obtained by removing impurities from the raw material gas (G1), which is discharged from the adsorption towers in the adsorption process, is used as a regeneration gas (G3) for purging the adsorption towers (2A, 2B, 2C) in the regeneration process, in which when at least two of the three adsorption towers (2A, 2B, 2C) perform the regeneration process, a part of the purified gas (G2) is discharged from the adsorption towers (2A, 2B, 2C) is used as the regeneration gas (G3) for purging the adsorption towers (2A, 2B, 2C). A regeneration gas (G3) sequentially flows through each adsorption tower (2B, 2C) for performing a regeneration process.

The utility model relates to the field of gas separation, in particular to a pressure swing adsorption system which comprises a gas distribution unit, an adsorption tower, a light component reflux unit, a heavy component reflux unit and a gas analyzer. Light-component product gas and heavy-component product gas are respectively produced from gas raw materials of multiple components through the adsorption tower, the product gas can flow back to the adsorption tower through the corresponding product gas buffer tank, the piston pump, the backflow buffer tank and the mass flow meter, and the pressure of the gas pumped into the backflow buffer tank can be accurately regulated and controlled by regulating and controlling the corresponding piston pump. The reflux ratio of the product gas is accurately controlled; meanwhile, a plurality of mass flow controllers are connected to the feeding end of the adsorption tower, so that the flow of the adsorption tower can be conveniently calculated and compared with the flow of the discharging end of the adsorption tower to judge whether the materials of the system are conserved or not, and gas raw materials with different contents can be conveniently adjusted to explore the separation effect of the pressure swing adsorption experiment.

The application discloses a three-tower series connection pressure swing adsorption device and a pressure equalization process thereof, adopts a set of pressure swing adsorption device, sets a multi-step series connection pressure equalization process, and adopts a three-tower simultaneous adsorption mode, so that the yield is obviously improved, the energy consumption and equipment investment are reduced, and the product gas quality is guaranteed. The three-tower series connection pressure swing adsorption device is used for pressure swing adsorption hydrogen extraction, the product hydrogen yield is obviously higher than that of an existing first-stage pressure swing adsorption hydrogen extraction device under the premise that the product hydrogen purity and impurity content meet high-purity hydrogen requirements, the three-tower series connection pressure swing adsorption device is used for pressure swing adsorption oxygen production and nitrogen production, and unit oxygen production power consumption and unit nitrogen production power consumption are obviously lower than the minimum index requirements in related standards under the premise that oxygen purity and nitrogen purity meet basic parameter requirements.

Method of producing high value chemicals from feedstock, wherein the feedstock is waste material or comprises waste material. A fluidised reactor system is provided comprising a pyrolysis chamber (2) and combustion chamber (12). The feedstock is input into the pyrolysis chamber and a pyrolysis process is executed at a temperature in the range of from 650 to 850° C. to obtain a product gas comprising high value chemicals.

A method and system for dispatching steel enterprises participating in grid peak shaving in a long-process steelmaking industry is disclosed. First, the long-process steelmaking process is divided into intermittent and continuous processes, and output constraints and material inventory constraints are established for both types of processes. Then, by coupling the output of self-owned power plants with the long-process steelmaking process through by-product gas, supply and demand balance constraints for by-product gas and operational constraints for self-owned power plants are established. Next, based on the long-process steelmaking process, adjustable processes are identified to determine peak shaving periods. By jointly adjusting the electrical load of adjustable processes and the power generation output of self-owned power plants, the adjustment boundary is determined for peak shaving periods without affecting output. Finally, a grid-side dispatch optimization model is established to solve for the optimal dispatch scheme with the goal of minimizing overall cost. This invention improves the energy regulation capabilities of steel enterprises in long-process production.

An electrolyzer system including a compressor manifold that supplies hydrogen to a gas distribution module, one or more generator modules that receives hydrogen from the gas distribution module and outputs a product gas, wherein each of the generator modules supplies product gas to a product manifold during normal operation or to a vent manifold in the event of a fault.

The invention relates to a method for operating an electrolysis plant (10) comprising an electrolyzer (1) with a plurality of electrolysis cells (5) connected in series, wherein process water (H2O) is supplied to the electrolysis cells (5) and the electrolysis cells (5) are subjected to an electric current, whereby hydrogen (H2) and oxygen (O2) are produced as product gases, and wherein the process water (H2O) is circulated in a process water circuit (31), wherein the temperature (TP) of the process water (H2O) is adjusted by regulating only the inlet temperature (TIN) of the process water (H2O), wherein a temperature setpoint (TSET) for the inlet temperature (TIN) of the process water (H2O) is specified. The invention further relates to an electrolysis plant (10) configured for carrying out the method.

The application discloses a method for adsorbing and separating He / N2 / CH4 mixed gas and relates to the technical field of gas separation. The adsorbing and separating method provided by the application adopts a triple reflux variable pressure adsorption process to separate the three-component gas of He / N2 / CH4 mixed gas, high-purity three kinds of product gas are obtained by reasonably setting a process time sequence and filling specific adsorbents in different bed layers, and the recovery rate is excellent. In the obtained three kinds of product gas, the purity of methane is 75-81%, the recovery rate is 80-92%, the purity of nitrogen is 90-96%, the recovery rate is 80-92%, and the purity of helium is 75-93%, and the recovery rate is 75-84%.

The present application relates to non-ferrous metal combustion technical field, specifically to a kind of dispersion type combustion system control method of aluminium melting furnace, comprising the following steps: adjusting the installation position of burner;Adjust the initial position of natural gas nozzle front valve opening;Multiple adjustment aluminium melting furnace burner ignition gun flame shape and length;Control the switching of flame mode and the proportion of primary air and secondary air;Precise control air-fuel ratio and residual oxygen content of furnace gas;Adjust the continuous blowout purging time of main fire gun and the time of not detecting flame after natural gas nozzle front valve opening, control the action of nozzle front valve;Adjust the frequency of dust removal system fan;Before ignition, if auxiliary smoke gate is in closed state, 3s is needed to open main fire gun again;And increase wild air valve in exhaust fan pipeline;Set ton gas consumption and burner interlock function: set ton gas consumption target value, when actual ton gas consumption reaches target value, burner is extinguished and reminds operator that melting is completed. The method helps to reduce product gas consumption of circular economy smelting furnace, reduce metal burning loss.

The utility model discloses a three-shaft gas turbine power system driven by ammonia hydrogen production. A liquid ammonia pump is sequentially connected with a liquid ammonia channel of a first intercooler, an ammonia gas channel I of a second intercooler, an ammonia gas channel II of a heat exchanger, a reaction channel of an ammonia decomposition reactor and a combustor through pipelines; the first air supercharging device inputs supercharged air into a compressed air channel I of the first intercooler, the compressed air channel I is connected with the second air supercharging device, and compressed air is input into a compressed air channel II of the second intercooler for heat exchange, then is compressed by a third air compressor and then is input into the combustor to be mixed with product gas for combustion; a flue gas outlet of the combustor is connected with a third turbine, the third turbine is connected with a flue gas channel I of the decomposition reactor, and the flue gas channel I is sequentially connected with a second air supercharging device and a first air supercharging device and conveys flue gas to a flue gas channel II of the heat exchanger. The system is simple, the gas turbine can generate larger compression ratio and higher combustion temperature, and the comprehensive energy efficiency of ammonia energy reaches 80-85%.

The utility model belongs to the technical field of methanol synthesis fuel, and particularly relates to a methanol synthesis fuel gas resource utilization device which comprises a fuel gas pretreatment unit, the fuel gas pretreatment unit is connected with a fuel gas separation unit, and the fuel gas separation unit is connected with a product conversion unit. The product conversion unit is connected with an energy recovery unit, the whole-process resource utilization of methanol synthesis fuel gas from purification to high-added-value product conversion is realized through cooperative work of a plurality of units such as pretreatment, separation, product conversion and the like, and the energy utilization efficiency and the economic benefit are remarkably improved; the combined separation technology adopts a combined separation technology combining pressure swing adsorption and membrane separation, various components in the fuel gas can be more accurately separated, the purity of the product gas is improved, and high-quality raw materials are provided for subsequent production of high-added-value products.

A system and method for the efficient collection of CO2 is disclosed. The system includes a subsystem having a condenser and a vaporizer, and a plurality of vessels each having a sorbent and configured to transition between gas collection, gas recovery, and heat recovery phases. The gas collection phase includes the sorbent absorbing CO2. The gas recovery phase has N stages, the vessels releasing a product gas and receiving vapor causing captured CO2 to desorb. The first (N-1) gas recovery stages include the vessel coupled to the subsystem at a downstream pressure and a vessel in the heat recovery phase at an upstream pressure. The Nth gas recovery stage includes the vessel coupled to the condenser at the downstream pressure and the vaporizer at the upstream pressure. The heat recovery phase has (N-1) stages, each including the vessel being coupled to a vessel in the gas recovery phase.

The application discloses a refinery dry gas C2 and above component recovery system and recovery method, and belongs to the technical field of pressure swing adsorption gas separation. The system comprises a pressure swing adsorption purification unit, a vacuum pump group connected with the pressure swing adsorption purification unit, a compressor and a rectifying tower, wherein the compressor condensate outlet is connected with a condensate conveying pipe, the condensate conveying pipe is connected to the rectifying tower, the rectifying tower is connected with a recovery product gas conveying pipe and a C4 and above hydrocarbon condensate discharge pipe, the pressure swing adsorption purification unit is connected with a refinery dry gas conveying pipe, the compressor compressed gas outlet is connected with a product gas external conveying pipe, and the recovery product gas conveying pipe is connected to the product gas external conveying pipe. The application can not only recover C2 and C3 components in condensate, but also reduce energy consumption.

A CO2 catalytic conversion life support verification system, including gas pressure regulating module, catalytic reaction module, online detection module, direct current secondary conversion power supply, control module and structure module. The present application adopts modular assembly design, and controllably converts carbon dioxide into oxygen and carbon-containing fuel, can realize wide range, high precision independent continuous regulation of gas and liquid flow in space unmanned environment, through the catalytic reaction module, the product gas and liquid can be separated, collected, and through the online monitoring module, the high precision real-time online measurement and analysis of the tested device and the reaction product are realized. The present application can realize high efficient energy conversion efficiency, through gas driven liquid, realizes high precision control of liquid, and has small size, high sensitivity detection capacity.

A feed water preparation system in a water electrolyser, suitable for producing hydrogen and oxygen using alkaline water in one or more pressurized electrolyser stacks (2), and comprising a product gas conditioning system having a safety valve blow-off stream conduit (11) connected to a feed water container (9), and / or a reduced pressure flow conduit (31) connected to a gas cleaning container on the water supply container (9).

The utility model relates to industrial gas separation and purification equipment technical field especially relates to a control system of preventing pressure swing adsorption bed layer fluidization, including raw material gas inlet main pipe, product gas discharge main pipe and a plurality of adsorption purification devices, and adsorption purification device contains raw material gas inlet branch pipe, adsorption tower, product gas discharge branch pipe, and the control system still includes the pressure cylinder of adsorption tower top, pressure sensor and process control regulating valve on product gas discharge branch pipe, the forward depressurization branch pipe and pressure equalizing orifice plate of intercommunication adjacent device. The utility model eliminates fluidization space through the pressure cylinder compaction adsorbent top surface, and process control regulating valve and pressure equalizing orifice plate cooperate and regulate and control pressure difference and flow velocity, solve the adsorbent fluidization pulverization in the operation of pressure swing adsorption device, pipeline vibration and the problem of high cost and high failure rate of existing control scheme, be applicable to all pressure swing adsorption device, especially to large -scale pressure swing adsorption device of low hydrogen raw material gas or macromolecular weight product gas, the effect is particularly remarkable.