372results about How to "Speed up the gas flow" patented technology

This invention is a reactor and a process for the conversion of organic waste material such as municipal trash, sewage, post-consumer refuse, and biomass to commercially salable materials. The invention produces the following: 1. Maximum energy conversion from the organic material 2. High volume consumption of the organic feed material 3. Less pollution of gaseous products than prior art systems 4. Solid residuals for disposal are minimal and non-hazardous. The conversion is accomplished by combining anaerobic gasification and pyrolysis of the feed organic material and making it into synthetic gas. The synthetic gas is a mixture of hydrocarbons (CxHy), hydrogen, and carbon monoxide with small amounts of carbon dioxide and nitrogen. An essential feature of the invention is a hot driver gas, devoid of free oxygen and rich in water, which supplies the entire thermal and chemical energy needed for the reactions. This hot driver gas is produced by complete sub-stoichiometric combustion of the fuel (CxHy) before it enters the reactor . . .

This invention is a reactor and a process for the conversion of organic waste material such as municipal trash, sewage, post-consumer refuse, and biomass to commercially salable materials.The invention produces the following:1. Maximum energy conversion from the organic material2. High volume consumption of the organic feed material3. Less pollution of gaseous products than prior art systems4. Solid residuals for disposal are minimal and non-hazardous.The conversion is accomplished by combining anaerobic gasification and pyrolysis of the feed organic material and making it into synthetic gas. The synthetic gas is a mixture of hydrocarbons (CxHy), hydrogen, and carbon monoxide with small amounts of carbon dioxide and nitrogen. An essential feature of the invention is a hot driver gas, devoid of free oxygen and rich in water, which supplies the entire thermal and chemical energy needed for the reactions. This hot driver gas is produced by complete sub-stoichiometric combustion of the fuel (CxHy) before it enters the reactor.

A solenoid gas valve having a solenoid assembly and inlet and outlet fittings is installed inside a tube. The opening and closing of the valve is operated by the pressure difference with an aid of the magnetic field. A compression spring is attached to the support cylindrical body and held against the inlet end fitting while a moving solenoid assembly is located inside the support cylindrical body. The moving solenoid assembly that consists of a stop, a flange, a sleeve and an electrical coil, is held by a second compression spring that is attached to the inside of the support cylindrical body. A small moving magnetic rod, slides inside the sleeve of the solenoid assembly. Acted by a third compression spring, the magnetic rod seals the gas outlet through the bleed orifice on the flange of the solenoid assembly.

An electronic HEMD determines the optimum balance between gas cooling and heat exchanger pressure loss, for any given operating condition, and adjusts the gas flow rate through the exchanger accordingly, to yield the maximum net power savings (and thereby energy savings) afforded by the exchanger. Maintaining the optimum balance between cooling and exchanger pressure loss reduces the amount of energy required to transport a given volume of gas through a pipeline and thereby increases the transmission efficiency of the gas pipeline system. A method of operating a heat exchanger on a natural gas transmission pipeline using a control algorithm that in turn controls the position of a heat exchanger bypass valve. The current operating conditions of the upstream compressor and gas cooling system are continually monitored for any changes and the control algorithm determines, the optimum flow through the heat exchanger and initiates a command signal to the exchanger bypass valve operator to move the bypass valve and thereby increase or decrease the gas flow rate through the exchanger, as required, until the optimum balance between gas cooling and heat exchanger pressure loss has been achieved.

The invention relates to a bipolar plate for a fuel cell, the plate being made up of two half-plates assembled one against the other via their inside faces, each half-plate including in its inside face at least a first groove and a second groove that are spaced apart from each other. The bottoms of said grooves each presenting a plurality of orifices distributed along each groove and opening out into the outside face of the half-plate. The outside face of each half-plate includes a plurality of distribution channels, each distribution channel connecting a respective orifice of the first groove to a respective orifice of the second groove.

A method for modifying asphalt comprises blowing an oxygen-containing gas through a base asphalt at a high gas flow rate while simultaneously agitating the base asphalt at a high shear rate and at an elevated temperature for a period of time that is effective to substantially improve at least two paving properties of the base asphalt. In preferred embodiments, modified asphalts are produced having both substantially improved rutting resistance and substantially improved fatigue resistance as compared to the base asphalt.

The invention discloses a gas-liquid phase ejector synergy refrigeration system for a double temperature direct cooling-type refrigerator, wherein a compressor, a condenser, a drying filter, a first capillary tube and a cold storage room evaporator are connected in sequence; an outlet of the cold storage room evaporator is connected with an inlet of a gas and liquid mixer of an ejector; an injected refrigerant inlet of the ejector is connected with the outlet of a frozen chamber evaporator; the outlet of the ejector is connected with the inlet of a gas-liquid separator; a saturated gaseous refrigerant outlet of the gas-liquid separator is connected with the inlet of the compressor through a compressor air suction pipe with a backheating effect; a saturated liquid refrigerant outlet is connected with the inlet of the frozen chamber evaporator through a second capillary tube; the ejector is a gas-liquid phase ejector, and the working fluid of the gas-liquid phase ejector is mixed gas-liquid refrigerants flowing out from the outlet of the cold storage room evaporator; in addition, the gas-liquid phase ejector is utilized to fully recover the expansion work in the refrigeration system during the throttling process, the suction pressure and the gas delivery capacity of the compressor can be increased obviously, the power consumption of the compressor can be reduced, and simultaneous refrigeration of the cold storage room evaporator and the frozen chamber evaporator can be achieved at different evaporating temperatures.

A laser scattering based imaging technique is utilized in order to visualize the aerosol droplets in an inductively coupled plasma (ICP) torch from an aerosol source to the site of analytical measurements. The resulting snapshots provide key information about the spatial distribution of the aerosol introduced by direct and indirect injection devices: 1) a direct injection high efficiency nebulizer (DIHEN); 2) a large-bore DIHEN (LB-DIHEN); and 3) a PFA microflow nebulizer with a PFA Scott-type spray chamber. Moreover, particle image velocimetry (PUV) is used to study the in-situ behavior of the aerosol before interaction with, for example, plasma, while the individual surviving droplets are explored by particle tracking velocimetry (PTV). Further, the velocity distribution of the surviving droplets demonstrates the importance of the initial droplet velocities in complete desolvation of the aerosol for optimum analytical performance in ICP spectrometries. These new observations are important in the design of the next-generation direct injection devices for lower sample consumption, higher sensitivity, lower noise levels, suppressed matrix effects, and for developing smart spectrometers. For example, a controller can be provided to control the output of the aerosol source by controlling the configuration of the source or the gas flow rate via feedback information concerning the aerosol.

The invention relates to a respirator, and discloses a breathing pressure fuzzy control type respirator and a breathing pressure fuzzy control method. The breathing pressure fuzzy control type respirator controls action of each part by means of actual control output of fuzzy piping and instruments diagram (PID) controller in a template embodiment, and each sensor collects signal variable of each part and transfers to the fuzzy PID controller to do fuzzy control operation. An air suction electromagnetic proportional valve is capable of controlling opening of a valve hole to continuously vary in a certain range according to corresponding control signal (voltage or current signal). The fuzzy PID controller is capable of controlling flow which enters back stage gas channel to continuously vary in a certain range through controlling opening of each valve and further controlling airway pressure. Breath becomes more comfortable and safer after patients using the respirator.

The invention relates to a dust collector, comprising base, fan installed on base and top cover on the base. The base and top cover form a cavity for placing fan, the cavity is connected to air through ventilating port on the top cover, at least two baffle walls around fan are installed between base and top cover, the baffle wall extends to top cover from base, and divides the cavity into a plurality of separate noise reduction room, the baffle wall is also equipped with break and breaks on the near baffle walls are staggering, and the noise reduction rooms are connected to each other through break. The invention reflects sound wave emit from fan to reduce sound energy, so the noise reduction effect is excellent.

A supersonic laval nozzle made of composite ceramic for spraying out high-speed superfine particles for cold spray coating is composed of a convergent segment based on a particular curve, a throat segment which is an isometric straight segment, and an axially symmetric clliptical segment. There is smooth transitien between adjacent two segments.

The invention discloses an air-source heat pump device integrating cool and warm air conditioning and water heating in the cold area, which belongs to the technical field of refrigeration air conditioner. The device consists of two high and low pressure compressors, a flash evaporator, a defrosting coil pipe, a flash gas superheated coil pipe, a compressor heat recovery coil pipe, a low pressure gas supply pressure pipeline and other parts which are connected through pipelines. The device is characterized in that the two high and low pressure compressors in the system have three modes of separate operation, parallel operation, and two-stage compression combined operation; and the two compressors are matched with a four-way electromagnetic directional valve, a three-way electromagnetic valve and an electromagnetic valve to form a refrigeration mode, a heating mode, a hygienic hot water mode and a refrigeration and hygienic hot water combined operation mold. The air-source heat pump device has the advantages that the device not only can refrigerate and produce hygienic hot water while refrigerating in summer; and under the microthermal climate in winter, the device can run stably to provide the heat needed by indoor heating and hygienic hot water, thereby realizing the integrated cool and warm air conditioning and water heating. The device which is used in a house in the cold area has wide popularization and application space and energy-saving significance.

A cryogenic system includes a housing of a cryogenic chamber, a cold source in the cryogenic chamber, and a gas circulation loop for circulating cryogenic gas between the cold source and material to be cooled in the cryogenic chamber. The circulation loop includes a gas pump, and a counter-flow heat exchanger connecting the gas pump to the cold source for cooling an in-flow of the cryogenic gas from the gas pump to the cold source with an out-flow of the cryogenic gas from the material to be cooled to the gas pump. In a preferred construction, the heat exchanger includes an outer tube and an inner tube nested within the outer tube, and a pair of three-port connector fittings attached to respective ends of the tubes.

The invention provides a multi-stage compressor and a refrigerating system provided with the same. The multi-stage compressor comprises a plurality of stages of compression cavities, diffusers (40) and air supplying structures (50). An impeller is arranged in each stage of compression cavity. An air passing channel (20) is arranged between every two adjacent stages of compression cavities. Every two adjacent stages of compression cavities are divided into an upstream compression cavity (11) and a downstream compression cavity (12). The diffusers (40) are arranged in the air passing channels (20). The air supplying structures (50) are arranged on at least one air passing channel (20) and located between the diffusers (40) corresponding to the upstream compression cavities (11) and the downstream compression cavities (12), or the air supplying structures (50) are located in the diffusers (40). By the adoption of the technical scheme, the problems that in the prior art, a compressor is prone to operating unstably, the circulating efficiency of a refrigerating system is low, and pneumatic noise is high can be effectively solved.

Humidity adjusting films are sandwiched between the catalyst electrode layers and carbon fiber collector layers of a solid polymer type fuel cell. These humidity adjusting films are constructed from a conductive carbonaceous powder and a polytetrafluoroethylene. The moisture permeability as measured by the method stipulated in JIS L 1099 (B-1) is 1200 to 4000 g / m2 hr, and the mean thickness of the films is 5 to 100 μm.

A vacuum pump system includes at least one high-vacuum pump, a fore-vacuum pump, and at least one intermediate pump, arranged between the at least one high-vacuum pump and the fore-vacuum pump and having its inlet connected directly and exclusively with the outlet of the high-vacuum pump.

The invention provides a particle removal method for a plasma processing apparatus, the method easily removing particles in the chamber up to its lower part. In a plasma etching apparatus including an upper antenna, a lower electrode, pressure gauges P1 and P2, gas introducing means, evacuating means, and phase controlling means for controllably applying RF power at a common frequency to the upper antenna and the lower electrode and for controlling phase of the RF power between equal phase and opposite phase, the particle removal method comprises: during a semiconductor substrate processing, applying RF power to the upper antenna and the lower electrode in opposite phase of voltage; and when the semiconductor substrate is not processed, performing discharge in the presence of non-depositing gas, applied power for the upper antenna and for the lower electrode being in equal phase of voltage and having a voltage amplitude of 100 V or more, and the height of the lower electrode being lower than the height during the semiconductor substrate processing.

A polycrystalline chemical vapour deposited (CVD) diamond wafer comprising: a largest linear dimension equal to or greater than 125 mm; a thickness equal to or greater than 200 μm; and one or both of the following characteristics measured at room temperature (nominally 298 K) over at least a central area of the polycrystalline CVD diamond wafer, said central area being circular, centred on a central point of the polycrystalline CVD diamond wafer, and having a diameter of at least 70% of the largest linear dimension of the polycrystalline CVD diamond wafer: an absorption coefficient≦0.2 cm−1 at 10.6 μm; and a dielectric loss coefficient at 145 GHz, of tan δ≦2×10−4.

A substrate is treated with a plasma by passing a gas through a first strong electrical field to form a plasma having active species and ionized species, passing at least a portion of said active species and ionized species into a second, weaker electrical field to generate a second but weaker plasma generation zone. Active species formed in said first plasma or said second plasma impinge onto the substrate to perform the desired treatment. The process allows a greater concentration of active species to reach the substrate than can be formed by the second plasma alone, while reducing arcing, maintaining a low gas temperature and providing other benefits.

An exhaust gas treatment system for an internal combustion engine comprises a particulate filter assembly configured to receive exhaust gas from the engine. The particulate filter assembly comprises an electrically heated catalyst, a particulate filter disposed downstream of the electrically heated catalyst, a hydrocarbon injector, in fluid communication with the exhaust gas, upstream of the electrically heated catalyst and configured to inject excess hydrocarbon into the exhaust gas, an air pump in fluid communication with the exhaust gas upstream of the electrically heated catalyst and configured to deliver air to the exhaust gas to increase the volumetric gas flow rate through, and to decrease the heat residence time in, the particulate filter and a controller configured to operate the hydrocarbon injector, the electrically heated catalyst and the air pump based on predetermined exhaust gas flow rates, temperature thresholds and particulate loadings within the particulate filter.

A novel compression / injection mixed refrigerating cyclic system used for a double-temperature refrigerator comprises a compressor, an outlet of the compressor is connected with an inlet of a condenser, the outlet of the condenser is divided into two paths, one path is connected with a first jet nozzle of a double-jet nozzle ejector, the other path is connected with an inlet of an evaporator of a refrigerating chamber by a first capillary tube, and an outlet of the evaporator of the refrigerating chamber is connected with a second jet nozzle of the double-jet nozzle ejector; the double-jet nozzle ejector is connected with an outlet of the evaporator of the refrigerating chamber by an injection refrigerating agent inlet; an outlet of the double-jet nozzle ejector is connected with an inlet of a gas-liquid separator; an outlet of the gas-liquid separator is divided into two paths, one path is that a saturated gas-state refrigerating agent outlet is connected with an inlet of the compressor, and the other path is that a saturated liquid-state refrigerating agent outlet is connected with the inlet of the evaporator of the refrigerating chamber by a second capillary tube; and the double-jet nozzle ejector fully utilizes the expansion work in the throttling process in a refrigerating system, the suction pressure and the gas output quantity of the compressor can be promoted obviously, the power consumption of the compressor is reduced, the performance of the refrigerating cyclic system is improved effectively, and the refrigeration of the refrigerating chamber and the evaporator of the refrigerating chamber can be realized simultaneously.

A power generation cell includes a membrane electrode assembly, and first and second separators sandwiching the membrane electrode assembly. The first separator includes an oxygen-containing gas flow field. An inlet buffer area is provided between the oxygen-containing gas flow field and an oxygen-containing gas supply passage, and an outlet buffer area is provided between the oxygen-containing gas flow field and an oxygen-containing gas discharge passage. Plural columnar resistance members are provided within the inlet buffer area and the outlet buffer area. The membrane electrode assembly further includes first and second humidification sections.

The invention discloses a smelting method for complete-flow low-oxygen-level producing of IF steel, and belongs to the technical field of steel smelting. The method comprises the steps that firstly, after converter steel smelting is finished, deslagging is carried out, 10 to 15 tons of slag is left in a converter, 50 to 100 kg of coke powder is added for removing oxygen in the slag, and the slag-splashing furnace protection operation is carried out; secondly, converter charging is carried out; thirdly, converter main blowing is carried out; fourthly, after converter main blowing is finished, through an auxiliary gun, the molten steel temperature and the carton content are measured, and according to the measuring value, auxiliary oxygen blowing amount is controlled; fifthly, after auxiliaryblowing is finished, before tapping, strong bottom blowing is carried out for 30 seconds; sixthly, converter tapping is carried out; seventhly, molten steel enters in the RH procedure; and eighthly,after a steel ladle is jacked, a vacuum pump is started for vacuum pumping decarburization. The converter tapping molten steel peroxidation degree is reduced, the steel ladle slag oxidation is reduced, the generation amount of deoxidation type inclusions Al2O3 can be reduced, the molten steel cleanliness level is improved, the cost is reduced, and the obvious economic benefits are achieved.

A ceramic abradable material is provided for use for clearance control between turbine blade tips and the shroud or casing in gas turbine engines for industrial and / or aerospace applications. The ceramic abradable material includes an yttria stabilized zirconia (YSZ) that is doped in alumina (Al2O3). The ceramic abradable in accordance with the invention is a soft abradable material that provides for increased erosion resistance as well as the ability of the turbine blade tips to cut into the abradable without causing them damage. These properties allow for optimum tolerances within the gas turbine engine which results in superior efficiency and performance.

A centrifugal compressor can be provided with which frequency of noise produced by rotation of the impeller having a plurality of blades does not resonate with natural frequency of vibration of gas in a plurality of axial slots which serve to increase gas flow rate in an operation range of increased gas flow rate and broaden stable operation range in an operation range of decreased gas flow rate resulting in reduction of noise caused by rotation of the impeller. The axial slots are formed between the peripheral part of the inlet passage of the compressor housing by the peripheral surface of the inlet passage and an annular ring part of the housing supported by a plurality of struts extending from the peripheral surface, four or more struts are provided to support the annular ring part, and all but one of them are located at positions which will be determined when all the struts are located at circumferentially equal spacing and one of the struts is shifted circumferentially from one of said positions by a certain central angle.

The invention discloses a self-adaptive detect method of the gas dissolved in the oil of a drawing transformer, and a relative device, wherein the invention uses a high-density gas sensor array to check the object gas to obtain a first check value, when the first check value is higher than a preset threshold value, using the first check value as the check result, or else, uses a low-density gas sensor array to check the object gas again, using the second check value as the check result. And the invention judges if the ratio between the average value and mean square difference of the check values of all sensors in the array is over a preset value to check the condition of the array. The invention has high measuring accuracy, better repeatability, long service life, and low check cost.

A thermal power plant exhaust purification device, the device including a cooling substance flow channel and an exhaust flow channel; the device also includes a spacing member for spacing and exchanging heat between the cooling substance flow channel and the exhaust flow channel, the spacing member having an exhaust contact surface for collecting dust and / or mist contained in the exhaust; the cooling substance flows in the cooling substance flow channel, such that the condensate precipitated from hot exhaust uniformly adheres on the exhaust contact surface, thus forming a uniform and stable water film; on one hand, formation of the concentrated H2SO4 on a dust collecting plate is prevented, and a liquid film flows downwards under gravity, thereby cleaning the H2SO4 adhered on the dust collecting plate timely; on the other hand, the water film is very effective in intercepting droplets and capturing the dust.

The invention provides a solar assisted ejector synergized steam compression type heat pump circulating system and method. The system comprises a compressor and a condenser which are connected with each other; the outlet of the condenser is divided into two paths; one path passes through a stop valve to be connected with the inlet of a booster pump; the outlet of the booster pump is connected with a solar heat collector / generator inlet; a solar heat collector / generator outlet is connected with an ejector working fluid inlet; the other path is connected with an expansion valve inlet and an expansion valve outlet is connected with an evaporator inlet; an evaporator outlet is divided into two paths; one path passes through the stop valve to be connected with an ejector driving fluid inlet, and the other path passes through the stop valve to be connected with a gas suction opening of the compressor; an ejector outlet passes through the stop valve to be connected with the gas suction opening of the compressor. According to the system, high-pressure working fluid is provided for an ejector by using a solar heat collector / generator, and low-temprature refrigerating agent gas at the evaporator outlet is ejected into the ejector, and the gas suction pressure of the compressor is improved, so that the power consumption of the compressor in the cycle is reduced, the gas outlet amount is improved, and the performance of the heat pump circulating system is improved.

An apparatus and method of making a filamentary pad for improved mist elimination and mass transfer comprising a plurality of layers of mesh, each layer of mesh having a plurality of mesh openings defined therein. A plurality of preferential gas flow openings, each having an area larger than any of the areas of said mesh openings absent said preferential gas flow openings, are defined within at least two layers of mesh. The plurality of layers of mesh are vertically stacked to form the filamentary pad. The preferential gas flow openings provide preferential low-resistance paths for gas flow.