40results about How to "Flexible load adjustment" patented technology

The invention relates to a membrane seawater desalination pressurization and energy recovery integrated method and a membrane seawater desalination pressurization and energy recovery integrated device. Piston rods of single-rod seawater cylinders are connected with single-rod oil cylinders to form two or more working combined bodies which operate alternately; the oil cylinders drive the seawater cylinders to move back and forth; one piston cavities of the seawater cylinders suck high pressure strong brine in the process of moving forward and drain the high pressure strong brine in the returning process; and the other piston cavities of the seawater cylinders suck raw seawater in the returning process, pressurize the raw seawater in the process of moving forward and continuously and stably output the pressurized high pressure raw seawater to a reverse osmosis membrane modulus.

The invention discloses a load-adjustable step feeding type entrained flow bed gasifier. The load-adjustable step feeding type entrained flow bed gasifier is characterized by comprising a pressure shell body, and a reaction chamber and a cooling / dust removal / water bath chilling chamber which are supported and hung in the pressure shell body, wherein the cooling / dust removal / water bath chilling chamber is coaxially arranged at the lower part of the reaction chamber; an annular gap space is arranged between the reaction chamber and the pressure shell body; and the reaction chamber is provided with a main nozzle and a plurality of load adjustment nozzles. The cooling / dust removal / water bath chilling chamber is coaxially arranged at the lower part of the reaction chamber, the main nozzle is arranged at the top part of the gasifier, the load adjustment nozzles are symmetrically arranged in the space at the upper part of the reaction chamber, and water is used to chill high-temperature synthetic gas and clinker discharged below the reaction chamber, so that the single-gasifier yield is effectively increased, the single-gasifier production load adjustment capability is realized, and the hearth reaction region is reasonably arranged, thereby ensuring that the synthetic gas in the hearth can produce a rotational flow, the retention time is long, the reaction is thorough and the load adjustment range is wide.

The invention discloses a high-dispersion Co-based bimetallic catalyst based on ZIFs and a preparation method of the high-dispersion Co-based bimetallic catalyst based on ZIFs, and belongs to the technical field of synthesis of nanometer materials and catalysts, the method ingeniously utilizes the characteristics that metal nodes in ZnCo-ZIFs are high in dispersion and have periodic pore structures; first, a second active metal salt is introduced into ZIFs pore channels through a double-solvent method; then in the high-temperature calcination process, the low-boiling-point metal Zn volatilizes and plays a fence role, the distance between the active metals is increased, Co nodes and the second active metal are subjected to in-situ reduction, and the high-dispersion Co-based bimetallic catalyst loaded on the nitrogen-doped carbon carrier is obtained. The method is simple in process and convenient to operate, the composition of the obtained high-dispersion Co-based bimetallic catalyst is flexible and adjustable, metal particles are distributed in a high-dispersion form, and the high-dispersion Co-based bimetallic catalyst has good stability and is expected to be applied to hydrogenation reaction, synthesis gas conversion, alcohol selective oxidation and other reactions.

A test unit of a variable-pitch system of a wind generation set relates to wind generation set equipment, and solves the technical problem of difficulty in carrying out load test on the existing variable-pitch system. The test unit comprises a hub, and a variable-pitch drive assembly and a variable-pitch bearing which are installed on the hub, and is characterized in that: the variable-pitch drive assembly drives an inner ring of the variable-pitch bearing to be connected with a brake disc, and a brake is connected with the hub through a mounting seat, and is connected with a hydraulic station. The test unit tests the wind generation set and occupies a small space, the load is flexibly adjusted, the test unit not only is time saving and labor saving and has high efficiency, but also can conveniently carry out the load test on the variable-pitch system in a workshop, can timely find the defect, is beneficial to product quality improvement, and saves the hoisting cost of a fan.

The invention relates to an integrated single-cylinder engine base structure which comprises a lower crankcase (1), a left balance chamber (2), a right balance chamber (3) and an oil pan (4), wherein the left balance chamber (2) and the right balance chamber (3) are symmetrically arranged at left and right sides of the lower crankcase (1); and the oil pan (4) is arranged at the lower parts of the left balance chamber (2) and the right balance chamber (3). According to the invention, the integrated single-cylinder engine base structure integrates a plurality of functions into a whole body and has high integration degree; three chambers are transversely arranged and three clapboards are longitudinally arranged, so that the longitudinal and transverse size proportion is proper, the integral rigidity is high, and the stability is high; a three-gear crankshaft bearing base is divided into a load-carrying bearing base and a thrust bearing base; the function division is clear; the load distribution is reasonable; the high working rigidity of a crankshaft and the working intensity of a bearing bush are ensured; and finally, the working intensity of the whole machine is improved.

The invention relates to a gas liquefying process for mixed refrigerant, which comprises the following steps: providing the mixed refrigerant which comprises the following components in percentage by mole: 5 to 10 percent of nitrogen, 30 to 40 percent of methane, 5 to 10 percent of ethylene, and 45 to 60 percent of propane; feeding the mixed refrigerant to a single refrigerant circulating system to carry out closed cycle to produce cold energy required by cooling gas; and exchanging heat of the gas needing to be liquefied and the refrigerant circulating system through a gas liquefying system so that the gas is cooled and liquefied. The process flow is simple, the components of the refrigerant are reasonable, and a liquefying device has the advantages of safe and reliable operation, simplework, flexible load adjustment and low energy consumption.

The invention discloses a phase change type high-pressure electrode boiler. The phase change type high-pressure electrode boiler comprises supporting legs, a boiler shell, a phase change heat exchanger, a plurality of supporting seats, insulation heat-resisting seats, an inner cylinder, a plurality of high-pressure electrodes, water distributing plates, U-shaped distributing pipes, a water pipe, awater return pipe and a load adjusting pump; the boiler shell is arranged on the supporting legs; the phase change heat exchanger is arranged at the top; the plurality of supporting seats are arranged on the inner wall of the boiler shell; the insulation heat-resisting seat is arranged on each supporting seat correspondingly; the inner cylinder provided with water distributing holes and water dropping holes at the bottom is arranged on the insulation heat-resisting seats; the plurality of high-pressure electrodes are connected with an external circuit, positioned in a cavity of the inner cylinder and hung on the inner cylinder through insulators; the water distributing plates are arranged above water inlets at the bottom of the inner cylinder; the U-shaped water distributing pipes communicate with the water inlets at the bottom of the inner cylinder and are arranged at the bottom of the inner cylinder; the water pipe communicates with the bottom of the U-shaped water distributing pipes, and is connected with and extends out of the bottom of the boiler shell; the water return pipe is arranged at the bottom of the boiler shell; and the load adjusting pump is connected with the end of the water pipe and the end of the water return pipe, and can perform variable frequency control and adjust circulating water volume of the boiler. The phase change type high-pressure electrode boiler is reliable in operation, flexible in load adjustment and high in safety, and is widely applicable to clean energy consumption and power plate flexible modification.

The invention relates to a reboiling and feeding heating two-in-one heating furnace and a fractionation method thereof. A reboiling furnace and a feeding heating furnace are combined to control a flow, the two-in-one furnace replaces the reboiling furnace and the feeding heating furnace which are respectively arranged, a convection chamber of the two-in-one furnace serves as the reboiling furnace, and a radiation chamber of the two-in-one furnace serves as the feeding heating furnace. Base oil of a fractionating tower a enters the convection chamber of the two-in-one furnace to be heated, the base oil is divided into two paths after heating, one path of the base oil serves as tower bottom reboiling oil to return to the bottom of the tower a, and the other path of the base oil serves as feeding of the radiation chamber of the two-in-one furnace. The two-in-one furnace can flexibly adjust loads of the reboiling furnace and the feeding heating furnace by adjusting quantity of reboiling oil (one path entering the radiation chamber) at the bottom of the fractionating tower a and recycle oil at the bottom of a fractionating tower b. Partial heavy materials at the bottom of the fractionating tower b return to an inlet of the radiation chamber of the two-in-one furnace to be mixed with the feeding of one path of the radiation chamber of the two-in-one furnace at the bottom of the fractionating tower to serve as mixed feeding of the radiation chamber of the two-in-one furnace, and vaporization rate of an outlet of the radiation chamber is controlled in an appropriate scope.

The invention provides a desulfurization device. The desulfurization device comprises a draught fan, a lime stone cabin, a gas storage tank and a circulating fluidized bed boiler, and is characterized in that the circulating fluidized bed boiler comprises a hearth, a material returning pipe and a square separator, wherein the upper part of the square separator is communicated with the upper part of the hearth; the lower part of the square separator is connected with the lower part of the hearth by the material returning pipe and a coal falling pipe is arranged on the hearth; the draught fan is connected with the bottom of the lime stone cabin by a heating device; the upper part of the lime stone cabin is connected with a bag dust remover and the lower end of the lime stone cabin is connected with a feeding machine by an unloading valve; the feeding machine is connected with a feeding pipe; the gas storage tank is connected with the feeding pipe and the feeding pipe is connected with the coal falling pipe. The invention further provides a desulfurization process utilizing the desulfurization device; the conveying speed of lime stones is 12m / s-14m / s and the gas-solid ratio is 1 to (3-6). The production cost of the equipment is reduced, the desulfurization effect of the circulating fluidized bed boiler is improved and the economic benefits are good.

The invention discloses a system access method, a communication system, a user terminal and network side equipment, which are used for controlling the user terminal to access an LTE-Advanced system by using a target carrier wave. In the invention, the system access method provided by the invention comprises the following steps of: determining target carrier wave information, which is required when the user terminal accesses the communication system, by a network side; and sending the target carrier wave information to the user terminal and indicating the user terminal to access the communication system according to the target carrier wave information.

The invention relates to a method for strengthening the activity of limestone-gypsum wet-method flue gas desulfurization slurry, and belongs to the technical field of flue gas desulfurization processes. An activation pipe network is arranged at the bottom of a limestone slurry box; a rear smoke channel of an oxygen-enriched combustion boil system feeds a part of system-captured high-concentration CO2 gas into the activation pipe network to activate the desulfurization slurry in the limestone slurry box; the activated limestone slurry is fed into an absorption tower and is subjected to countercurrent contact and absorption with the SO2 gas; activated and leaked CO2 gas returns to the rear smoke channel of the oxygen-enriched combustion boil system through a CO2 gas overflow opening at the top of the limestone slurry box. The method for strengthening the activity of the limestone-gypsum wet-method flue gas desulfurization slurry improves the reaction efficiency of CaCO3 and the SO2 by facilitating the dissolution of CaCO3 and the SO2.

A membrane seawater desalination pressurization and energy recovery integrated method. Piston rods of single-rod piston-type seawater cylinders are connected with single-rod piston-type hydraulic cylinders to form two or more than two working combined bodies which operate alternately. In a process that the hydraulic cylinders drive the seawater cylinders to move back and forth, one piston cavity of a seawater cylinder sucks high pressure strong brine in the process of moving forward and drains the high pressure strong brine in the returning process; and the other piston cavity of the seawater cylinder sucks raw seawater in the returning process, pressurizes the raw seawater in the process of moving forward and continuously and stably outputs the pressurized high pressure raw seawater to a reverse osmosis membrane module. Meanwhile, a membrane seawater desalination pressurization and energy recovery integrated device is further disclosed.

The invention provides a transforming and operating method for reducing the extraction steam parameter of a steam turbine coordinated by steam compressor industry steam supply branched network pipeline pressurization. The system configuration comprises an industrial steam header, branched control valves for each heat user, a steam compressor, a gearbox high-speed shaft, a gearbox low-speed shaft, a drive frequency conversion motor, a control module, a power plant DCS and valves and pipe fittings connecting the above devices. By addition of steam compressor on an industry steam supply pipe network high-pressure branched network pipeline, the control module is coordinated with the steam turbine to adjust the load, the industrial steam supply overall extraction steam parameter is reduced, and the purposes of energy saving and turbine load adjustment are achieved. According to the transforming and operating method for reducing the extraction steam parameter of the steam turbine coordinated by steam compressor industry steam supply branched network pipeline pressurization, a new technical route is provided for multi-parameter and multi-user industrial steam supply, combined heat and power generation thermal generator set conducting deep pitching peak is also provided for a novel technological idea, and meanwhile, the transforming and operating method can also be applied to long-distance steam supply pressurization. The transforming and operating method has the characteristics of being simple in transformation and large in energy saving volume.

A honeycomb type coal boiler with hot flue gas bidirectional ignition, high-rank coal adaptability and variable load belongs to the boiler technical field, in particular relates to stream for burning honeycomb type coal and a hot-water boiler. A right hearth of the invention is provided with a right side hearth hogging; the left hearth is provided with a left side hearth face arch and a left side hearth rear arch; the structures of the left hearth and the right hearth are asymmetrical; the flue gas channels of the left hearth and the right hearth are also asymmetrical; the invention adopts the mode that the hot flue gas downwards the right hearth and upwards the left hearth ignites bituminous coal in the boiler; the invention solves the following problems that: 1. After the whole hot flue gas is downward to ignite the bituminous coal in the boiler, the flue gas directly enters to the subordinate heating surface for cooling and causes the problems that black smoke is emitted from the boiler, coal tar is condensed from the tube wall of the tail heating surface condenses and causes the block, the shut down of the boiler and the decrease of the thermal efficiency; 2. The desulphurization degree in the coal boiler is low; 3. The coal boiler has poor load adjusting performance; 4. The coal has slow burning speed, high manufacturing cost and large occupied area; 5. The coal boiler is uneasy to be large-sized. The invention has the advantages of higher burning efficiency, stronger coal-rank adaptability, better environmental protection and more reliable operation.

The invention discloses a load-adjustable step feeding type entrained flow bed gasifier. The load-adjustable step feeding type entrained flow bed gasifier is characterized by comprising a pressure shell body, and a reaction chamber and a cooling / dust removal / water bath chilling chamber which are supported and hung in the pressure shell body, wherein the cooling / dust removal / water bath chilling chamber is coaxially arranged at the lower part of the reaction chamber; an annular gap space is arranged between the reaction chamber and the pressure shell body; and the reaction chamber is provided with a main nozzle and a plurality of load adjustment nozzles. The cooling / dust removal / water bath chilling chamber is coaxially arranged at the lower part of the reaction chamber, the main nozzle is arranged at the top part of the gasifier, the load adjustment nozzles are symmetrically arranged in the space at the upper part of the reaction chamber, and water is used to chill high-temperature synthetic gas and clinker discharged below the reaction chamber, so that the single-gasifier yield is effectively increased, the single-gasifier production load adjustment capability is realized, and the hearth reaction region is reasonably arranged, thereby ensuring that the synthetic gas in the hearth can produce a rotational flow, the retention time is long, the reaction is thorough and the load adjustment range is wide.