200results about How to "Increase operating pressure" patented technology

The invention disclosed herein provides a subsonic wind tunnel capable for accurately maintaining a desired Mach number, pressure and temperature for use in aerothermal testing of materials. The invention allows the Mach number to be precisely controlled in the test section of the wind tunnel by employing a restricted outlet acting as a sonic throat for the wind tunnel. In the preferred embodiment, the restricted outlet is constructed to be variable in cross sectional area allowing a range of Mach numbers to be tested. The variable outlet is varied during the operation of the wind tunnel so that an actual trajectory with changing Mach numbers, pressure, and temperature is simulated.

The invention relates to a multi-effect rectifying process of methanol, which belongs to the technical field of separation and purification of chemical products. In the process, a crude methanol raw material of coal-to-methanol is rectified by a pre-rectifying tower, a pressurizing tower I, a pressurizing tower II, an atmospheric tower and a recovery tower in turn at appropriate temperature and pressure so as to obtain a high-purity refined methanol product according with quality requirements. In the flow, methanol steam on the top of the pressurizing tower I is used for providing heat for a reboiler at the bottom of the pressurizing tower II, the methanol steam on the top of the pressurizing tower II is used for providing heat for a reboiler at the bottom of the atmospheric tower, and the pressurizing tower I, the pressurizing tower II and the atmospheric tower form multi-effect rectification; and simultaneously, the methanol steam on the top of the recovery tower is used for providing heat for a reboiler at the bottom of the pre-rectifying tower, and the recovery tower and the pre-rectifying tower form double-effect rectification. The invention provides an energy-saving methanol multi-effect rectifying process method which has the advantages of greatly reduced energy consumption, more stable production process, more easily controlled product quality, higher methanol recovery rate and basically equivalent investment compared with a three-tower rectifying process.

The complex mechanical gear trains and lubrication systems of conventional engine configurations are eliminated by using combinations of hydrodynamic air foil bearings, hydrodynamic solid geometry carbon seals/bearings, magnetic bearings, and electrical starter/generators that can also act as bearings to support the high speed shafts of gas turbine engines. The various bearing types and the starter/generators are arranged in such a way as to share peak loads experienced by the engine shaft during maximum aircraft maneuvers. This results in a minimal bearing and engine size.

A method for concentrating a water-soluble organic material wherein a mixture of the water-soluble organic material with water is distilled in a distillation column (11), and the fraction from the top (11a) of the distillation column (11) is separated by the use of a membrane separator (14) into a permeated vapor (F₂) and a non-permeated vapor (F₃), which comprises once condensing the fraction to form a condensate, heating the condensate in an evaporator (13) to generate a vapor (F₁) having a pressure higher than the operation pressure for the distillation column (11), and introducing the vapor (F₁) to the membrane separator (14), thereby separating water from the mixture.

The invention discloses an IGCC (Integrated Gasification Combined Cycle) poly-generation device and method based on pyrolysis and gasification of low metamorphic powdered coal. The device comprises a pyrolysis/gasification system, a coal gas purifying system, a circulating fluidized bed boiler and a gas turbine/steam turbine system. The method comprises the steps as follows: carrying out low temperature pyrolysis and partial air gasification on the low metamorphic powdered coal, grading and converting into coal gas, tar and semi-coke, and carrying out the IGCC poly-generation process by the semi-coke and the coal gas with high calorific value. According to the device and the method, the tar, sulphur and other chemical products can be produced while clean power is generated, the products obtained by grading and converting the low metamorphic powdered coal are fully utilized, the material conversion and energy conversion functions are integrated, the resource utilization rate is high, and the heat energy efficiency is high. The device and method are suitable for the low metamorphic powdered coal such as peat, brown coal, jet coal, non-sticking coal and the like, and the particle size of raw materials is 0-8 mm. The high-temperature coal gas generated in a fluidized bed gasification furnace contains a large amount of hydrogen, so that the powdered coal can be subjected to hydropyrolysis, and the tar recovery rate can reach more than 12%.

A first ECU estimates whether the operation of a second actuator has been started, based on the variation of the hydraulic pressure with respect to the flow rate of hydraulic fluid outputted from a first actuator. Even in a case where the operation information of the second actuator is not received, the first ECU sets the control mode to a simultaneous operation mode, when it is estimated that the operation of the second actuator has been started. In the simultaneous operation mode, a controlled parameter of linear control valves on assumption that the second actuator is operating is set up, and a stop instruction of regenerative braking is transmitted to a hybrid ECU.

A suction modulation valve is throttled when conditions in a refrigerant system indicate that an undesirable amount of liquid refrigerant might otherwise be delivered to the compressor. As an example, the throttling would occur at start-up, among other conditions. Throttling the suction modulation valve reduces the amount of refrigerant reaching the compressor and thus ensures that any liquid refrigerant would be likely “boiled off” before raising any problems in the compressor. Other control steps can also be performed to alleviate flooded compressor operation with liquid refrigerant. Such steps, for example, can consist of: actuating heaters, discharge valve throttling, by-passing refrigerant from intermediate compression point back to suction, controlling the speed of the condenser fan can be performed independently or in combination including the suction modulation valve throttling.

The invention discloses a circulated coal gas heat carrier fluidized bed ash coal pyrolysis device and method. The device comprises a coal-adding system and a fluidized bed pyrolyzing furnace which is communicated with the coal-adding system and provided with a coke-discharging hole, wherein the gas distributor of the fluidized bed pyrolyzing furnace is communicated with a high temperature heating furnace, the coal gas outlet of the fluidized bed pyrolyzing furnace is communicated with a first-stage cyclone separator, a second-stage cyclone separator, a high temperature deep dust collector and a gas cooler in turn through a pipeline, the lower outlet of the gas cooler is communicated with a separator, and the gas outlet of the gas cooler is connected with the high temperature heating furnace and a coal gas delivering device respectively. The device has simple flow and does not require an air separation device; as the circulated coal gas contains a lot of hydrogen, the hydropyrolysis of coal is realized to a certain extent, the yield of oil is increased to above 12%; and the operating pressure can be increased to the medium/high level, and industrial clusters and polygeneration are applied on the basis of equipment scale expansion while the products such as coal gas with high calorific value, semicoke, tar and the like are prepared.

The invention relates to a method for depriving a solvent for cis-polybutadiene, which is mainly used for solving the problems of high consumption of solvent naphtha and large consumption of water vapor in the prior art. The technical scheme adopted by the invention comprises the following steps: a) injecting a material stream I containing rubber liquid cement and hot water from the upper part ofa first cohesion kettle, ejecting a material stream II containing water and solvent from the top of the first cohesion kettle, and ejecting a material stream III from an overflow pipe at the lateral part of the first cohesion kettle, wherein the flow capacity of the material stream III is controlled by a liquid level controlling system; b) feeding the material stream III from a gas phase spatial position in the second cohesion kettle, after the material stream containing water and solvent is drawn out by vacuum-pumping equipment, feeding the material stream containing water and solvent into the bottom of the first cohesion kettle together with the supplementary fresh steam, and carrying out cohesion, thus obtaining a material containing cis-polybutadiene at the bottom of the second cohesion kettle; and c) obtaining the solvent after the stream II containing water and solvent is subjected to separation. By utilizing the technical scheme provided by the invention, the problems in the prior art can be better solved; and the method for deprivating the solvent for cis-polybutadiene can be applicable to the industrial production for deprivating the solvent for the cis polybutadiene.

The invention relates to a supercritical extracting and drying method in a process of preparing ultrahigh molecular weight polyethylene filber (UHMWPE), including: the fiber molded after cooled and solidified drops in an extraction kettle, and is arranged regularly; feeding extractant into the extraction kettle for supercritical extraction; after extraction complete, feeding hot gas in to dry; or drying in a vacuumizing mode; wherein the mentioned extractant is selected from one of methane, ethane, ethane, and propylene. The invention adopts supercritical extraction method to remove the first solution added in a solution preparing process, and the extracting and drying arts are completed in one device, simplifying the process.

The invention provides a method and device for testing the hardware pressure, which can be used for easily and quickly helping an ordinary user test the performance of machine hardware such as computers, mobile terminals and the like. The method comprises the following steps of: starting a hardware pressure testing function; running a software testing model in an operating system to raise the temperature of tested hardware; and monitoring the temperature of the tested hardware in the running process of the testing model and testing the heat radiating performance of the tested hardware through the temperature change of the tested hardware. The method can be implemented without professional, an ordinary user can be helped to know the heat radiating performance of machine hardware (such as CPUs (Central Processing Units), display cards, hard disks, mainboards and the like) such as computers, mobile terminals and the like at any time, and the user is helped to perform performance testing in advance during purchase of machines such as computers, mobile phones and the like.

The invention discloses a method for producing ethyl chloride, which comprises steps as follows: hydrochloric acid and zinc chloride after concentration by evaporation enter a hydrochloric acid heating unit from the bottom to be heated, enter an ethyl chloride reactor, and are subjected to thermal separation of the ethyl chloride and mixed solution; the separated magnesium chloride enters an evaporation dehydrator to be heated; the zinc chloride solution is concentrated; and the high-concentration zinc chloride naturally flows to the lower part of a hydrochloric acid evaporator to be recycled. The invention can be matched with a climbing film graphite evaporator with larger heat transfer area to implement the large-size ethyl chloride reactor and enhance the level of the ethyl chloride industrialization device; the reaction rate and raw material conversion rate are enhanced; graphite is used as the distributor of the ethyl chloride reaction part, so the corrosion resistance is high; the steel liner polytetrafluoroethylene cylinder and pipeline are adopted, thereby resisting corrosion and enhancing the operating pressure and equipment utilization ratio; and in addition, the invention is convenient to operate, enhances the production efficiency of ethyl chloride, and has favorable application value.

Nitrogen is rejected from a pressurised feed gas stream comprising methane and nitrogen by cooling the feed gas stream in a main heat exchanger 10 and rectifying the cooled feed gas stream in a double rectification column 20 comprising a higher pressure rectification column 22, a lower pressure rectification column 24, and a condenser-reboiler 25 placing the higher pressure column 22 in heat exchange relationship with the lower pressure column 24. A pump 50 withdraws a methane product stream from the column 24. The methane product stream is pressurised by the pump 50 and is vaporised in the main heat exchanger 10. The pressurised feed gas stream is expanded with the performance of external work in an expansion turbine 6 upstream of the main heat exchanger 10.

Apparatus and methods for controlling miniaturized arrays of ion traps, including cylindrical ion traps, rectilinear ion traps, and linear ion traps. Improved methods for applying supplemental AC signals to individual ion traps in an ion trap array. Methods of organizing ion trap arrays and operating the arrays in a manner to improve sensitivity, resolution and mass accuracy. Techniques for performing simultaneous detection of multiple compounds from ion trap arrays. Optimization of ion trap performance by dynamic optimization or adjustment of RF trapping frequency and voltage amplitude.

The present invention provides an improved structural assembly constructed of a plurality of structural members secured together. At least one of the plurality of structural members defines a first region characterized by comparatively high operational stress and a second region having a locally refined grain structure positioned such that the second region at least partially encompasses the first region to thereby enhance the strength, toughness and fatigue resistance of the at least one structural member in the first region. The present invention also provides a method for selectively improving the strength, toughness and fatigue resistance of a structural member in a region of high operational stress including the steps of casting the structural member in a pre-selected configuration. Regions of the structural member having comparatively high operational stress are identified. The structural member is secured to prevent movement. The region of the structural member having comparatively high operational stress is then mixed with a rotating friction stir welding probe to locally refine the grain structure of the structural member within the region of high operational stress to thereby improve the strength, toughness and fatigue resistance of the structural member in the region. The structural member can be secured to other structural members to form the frame of an aircraft. The improved structural assembly will have an increased operational life, as well as require less stock material with a corresponding decrease in the overall weight of the assembly.

The invention relates to a seawater desalinator, in particular to a seawater desalination device which overcomes the defects of high energy consumption and low efficiency of the prior art and is used for desalinating seawater. The seawater desalination device comprises a hollow shaft, an upper bearing cover, an upper end bearing, a lower end bearing, an upper end cover, a stator part, a rotor part, a lower end cover, a lower bearing cover, a water-containing pan and two sealing sleeve assemblies. When the seawater desalination device is in work, seawater flows in the device from the hollow shaft and enters a cavity chamber with the stator part and the rotor part, external power drives the rotor part to rotate, the seawater is magnified by an electromagnetic reaction between the stator part and the rotor part and heated by generated heat, the rotating speed of the rotor part is increased after magnification is finished, a sealing pressure block is opened by utilizing centrifugal force which is generated by the high-speed rotation, the seawater enters a cavity of an outer cylinder body through a film and a film sealing sleeve, and fresh water flows in the water-containing pan. The invention changes the acting force between the solute and the solvent of an aqueous solution by a magnetic field, improves the flux of the film, increases the seawater temperature and enhances the water permeation capability.

The invention discloses a nano-fiber material, wherein the nano-fiber material is formed by spinning an ionic polymer into a nano-fiber nonwoven, and the ionic polymer is represented by the formula:

R₃ includes

and m/n is between 1/50 and 50/1, q≧0.

The invention discloses a clean coal pressurized fluidized bed slag gasification process and system. By means of the gasification process and system, the problems that an existing pressurized fluidized bed industrial gasification process is complex, poor in coal applicability, low in gasification pressure, small in production capacity and low in gasification efficiency, the environment is polluted are solved. According to the technical scheme, the process includes the steps that raw material coal powder is pressurized and sent to a fluidized bed gasification furnace through a material inlet to react with a gasifying agent in a gasification mode, and crude synthesis gas and coal powder ash slag are obtained; the crude synthesis gad rises and is sent to a multi-pipe type cyclone separator through a top outlet of the fluidized bed gasification furnace to be dedusted, fluidizing agents are sprayed twice through a gasification spray nozzle to improve gasification efficiency, the coal powder ash slag is melt through a slag melting device, forms melt slag and then enters a slag quenching tank through a bottom outlet of the fluidized bed gasification furnace to be quenched and discharged through a slag locking hopper. The clean coal pressurized fluidized bed slag gasification process and system are simple in process, easy and convenient to operate, wide in coal applicability, high in gasification pressure, large in production capacity, high in gasification efficiency and environmentally friendly.

In an antiskid control apparatus, brake pressures of a plurality of wheels are increased by using a hydraulic pressure generated by a master cylinder. When the running speed of a vehicle becomes lower than predetermined value due to a braking operation, a brake-pressure adjusting unit increases the brake pressures applied to the plurality of wheels with timings different from each other. In this way, it is possible to reduce changes with time in amount of fluid flowing out of the master cylinder.