50results about How to "Reduce liquefaction" patented technology

A pile array assembly system for use in interaction with a ground site having adjacent building or structure footing or equivalent foundational support for reduced soil liquefaction in the event of seismic disturbance. The system is provided with a number of pile array subassemblies which relate to each other positionally and structurally to cooperate in deflecting seismic shock waves and also densifying the ground site to provide reduced soil liquefaction. Various arcuate or arc-linked pile units are placed as pile array subassemblies, in preferred embodiments, to utilize multiple configurational peripheries or perimeters of pile units. Additionally, in preferred embodiments, individual pile units within a subassembly are slanted or slanted and rotationally advanced or spun to achieve positioning for improved and advanced subground seismic wave deflection and dissipation.

Provided is a fuel supply system for a marine structure using a high-pressure natural gas injection engine. The fuel supply system includes: a boil-off gas (BOG) compression unit configured to receive and compress BOG generated in a storage tank storing a liquefied gas; a reliquefaction apparatus configured to receive and liquefy the BOG compressed by the BOG compression unit; a buffer tank configured to receive the liquefied BOG from the reliquefaction apparatus and separate the reliquefied BOG into a gaseous component and a liquid component; a high-pressure pump configured to receive the liquid component from the buffer tank and compress the liquid component; and a high-pressure gasifier configured to gasify the liquid component compressed by the high-pressure pump and supply the gasified liquid component to the high-pressure natural gas injection engine.

Provided is a fuel supply method for a marine structure using a high-pressure natural gas injection engine. BOG stored in a stored in the storage tank is compressed to a pressure of 12 to 45 bara (absolute pressure) and then reliquefied. A reliquefaction apparatus includes a cold box configured to exchange heat between a refrigerant and the BOG, a compression unit configured to compress the refrigerant heated by the cold box, an expansion unit configured to expand the compressed refrigerant to drop the temperature thereof, and a plurality of gas-liquid refrigerant separators configured to separate the refrigerant into a gaseous refrigerant and a liquid refrigerant. A gaseous refrigerant and a liquid refrigerant separated by the gas-liquid refrigerant separator disposed at an upstream side are again mixed and supplied to the gas-liquid refrigerant separator disposed at the most downstream among the plurality of gas-liquid refrigerant separators.

A reinforcement and / or lining method is provided, wherein a thermoplastic reinforcement and / or lining element is subject to mechanical energy impact and mechanical pressure by a tool so that reinforcement and / or lining material of the reinforcement and / or lining element is liquefied and pressed into porous material to reinforce the porous material. In at least one axial depth, the reinforcement and / or lining element is segmented as a function of the circumferential angle so that at this axial depth the circumferential wall of the initial opening in first regions is in contact with the reinforcement and / or lining element and in second regions is not in contact with the reinforcement and / or lining element.

Provided is a fuel supply system for a high-pressure natural gas injection engine. The fuel supply system includes: a BOG compression unit configured to receive BOG, which is generated in a storage tank, from the storage tank and compress the received BOG to a pressure of 12 to 45 bara; a reliquefaction apparatus configured to receive and liquefy the BOG compressed by the BOG compression unit; a high-pressure pump configured to compress the BOG liquefied by the reliquefaction apparatus; a high-pressure gasifier configured to gasify the BOG compressed by the high-pressure pump and supply the gasified BOG to the high-pressure natural gas injection engine; and an excess BOG consumption unit configured to consume excess BOG corresponding to a difference between an amount of BOG generated in the storage tank and an amount of BOG required as fuel for the high-pressure natural gas injection engine.

Diecasting machine for production of mouldings from thixotropic metal billets, containing a sprue system which connects a cylindrical casting chamber cavity with a moulding cavity, where the sprue system has a cylindrical sprue cavity immediately adjacent to the casting chamber cavity and contains at least one sprue, and all sprues lead laterally away from the generated surface of the sprue cavity and each sprue has a concentric center line and at its end facing towards the moulding cavity has an inlet opening for introduction of the thixotropic metal alloy into the moulding cavity, and the sprue system is connected to the casting chamber cavity by a passage opening perpendicular in relation to a concentric longitudinal axis of the cylindrical casting chamber cavity, wherein each sprue has a circular or elliptical cross section with a substantially constant cross sectional area over its entire length.

The invention discloses a staggered maze cooling reaction still magnetic liquid sealing device and belongs to the field of mechanical engineering sealing. The problem that when existing magnetic liquid sealing devices are used on reaction stills, due to the fact that organic solvent vapor in the reaction stills has a corrosion function on magnetic liquid, the sealing devices are short in service life and prone to losing efficacy is solved. The device is composed of a magnetic liquid sealing assembly, a movable ring (17), a fixed ring (2) and a positioning ring (5). The fixed ring (2) is low in temperature and good in thermal conductivity, a groove is formed in an inner circle of the movable ring (17), and the movable ring (17) is poor in thermal conductivity, so that the fixed ring and the movable ring form a staggered maze, and liquefying of the organic solvent vapor is facilitated. The upper end face of the fixed ring (2) and the upper end faces of sealing teeth of the fixed ring (2) are inclined faces inclining towards a rotation shaft (15), and thus the liquefied organic solvent vapor flows downwards advantageously. The temperature of fixed ring cooling liquid is 11-15 DEG C lower than that of pole shoe cooling liquid, and liquefying of the organic solvent vapor on a pole shoe is reduced advantageously. The problem that the sealing devices are short in service life due to corrosion of organic solvent vapor to magnetic liquid is successfully solved.

The invention relates to a slitting and recycling device, in particular to a slitting and recycling device for strip-shaped solid alcohol. The slitting and recycling device comprises a conveying belt, a slicing device and a recycling device. The slicing device is located above the conveying belt and used for slicing the solid alcohol into pieces. The recycling device is located under the slicing device. The recycling device is used for recycling the solid alcohol left at the two ends in the slicing process. The conveying belt is located between the slicing device and the recycling device. The slitting and recycling device can slice the solid alcohol with the high efficiency and can automatically recycle the solid alcohol left at the two ends in the slicing process.

The invention provides a method by which a steel component provided with a metallic coating which has good adhesion and provides protection from corrosion can be produced. The problem addressed by the invention is especially that of specifying a corresponding hot forming process which enables a wide range of processing variants. The emphasis here is not on long-lasting corrosion protection but more on high flexibility of the processing properties. For this purpose, a thin zinc layer having a mean layer thickness of less than 5 mum, preferably in the range of 1-4 mum, more preferably in the range of 2-4 mum, is applied by electrolytic means to a flat steel product consisting of a steel material which can be annealed by quenching in a hot forming process and has a yield point of 150-1100 MPa and a tensile strength of 300-1200 MPa. A billet is then obtained from the flat steel product and is heated directly to at least 800 DEG C and then formed to give the steel component, or is first formed to give the steel component which is then heated to at least 800 DEG C. The steel component obtained in each case is subsequently annealed by cooling it with sufficient speed from a sufficiently high temperature.

The invention relates to a mist outlet assembly of a humidifying device and the humidifying device. The mist outlet assembly comprises a mist outlet cover (1) provided with a mist outlet (101) and a mist guide channel (102) communicated with the mist outlet (101); the mist outlet (101) is used for jetting mist into the exterior environment, and the mist guide channel (102) is used for guiding the mist to the mist outlet (101) in an upward-inclining manner. The mist outlet of the mist outlet cover enables the mist to be jetted in an upward-inclining manner by a certain angle relative to the horizontal direction, the jetting distance is longer, , the humidifying effect of the longer distance can be met, and the defect that in the prior art, the mist outlet distance of a humidifying fan is short is overcome; and meanwhile, the mist is jetted in a long-distance manner, accumulation of the mist around a motor can be reduced, the phenomenon that the mist on the surface of an electric appliance is liquefied and drops water is avoided, corrosion to the motor is reduced, and performance of the motor is prevented from being affected.

The invention discloses a high-polymer gravel permeable rigid pile and its construction technique. The construction technique includes steps of stirring certain graded gravel grains with a high-molecular polymer at a certain ratio according to the design requirement; after stirring evenly, pouring in a pile hole; gluing the gravel grains to be a whole body by means of the high-molecular polymer.;through proper compaction and vibration, forming a rigid pile while reserving a part of gap between the gravel grains; forming a vesicular structure and arranging reverse filter layers at the outsideand the bottom part of the pile body. The high-polymer gravel permeable rigid pile is simple in construction technique, controllable in quality, short in construction term and low in cost.

The invention discloses a ground anchor device suitable for a saturated sandy soil site. The ground anchor device comprises a drill rod and a drill bit. The drill bit is installed at the bottom end of the drill rod, and a plurality of water permeable holes are evenly distributed on the wall of the drill rod. The ground anchor device aims at reducing and solving the problem that in the process that a traditional ground anchor device drills into the saturated sandy soil site, overlarge disturbance is generated, and therefore, wide-range liquidation occurs to sandy soil around a ground anchor as much as possible. The water permeable holes are formed in the outer side of the drill rod. In the drill rod in-soil process, excess pore water caused by disturbance can permeate into the drill rod through the water permeable holes so that dissipating of the excess pore water is accelerated, therefore, the liquidation occurring possibility is reduced, and the pulling-resistant property of the ground anchor drill rod is ensured.

The invention provides a method for repairing heavy metal contaminated soil through magnesium oxide and microorganisms, and belongs to the technical field of geotechnical engineering. The method comprises the steps of preparation of a mixture, preparation and detection of an improved mixture, and remediation of the heavy metal contaminated site. The mixed material contains magnesium oxide, the improved mixed material comprises a mixed material and a microbial liquid, and the repairing is performed by paving a plurality of layers of geomembranes and a plurality of layers of improved mixed materials on the heavy metal polluted site. According to the heavy metal polluted site repaired through the method, curing of harmful elements can be achieved, and pollution to the environment is reduced. Particularly, the magnesium oxide is added to provide an alkaline environment for microorganisms, so that the carbonate minerals can better wrap and adsorb heavy metal ions, and a reaction product of the carbonate minerals and the microorganisms can fix carbon dioxide to make a contribution to atmospheric pollution treatment in China. In addition, a cheap culture medium is adopted for microorganism culture, and cost is reduced.

The invention provides a condensation circulating device and a cabinet air conditioner. The condensation circulating device is suitable for being arranged between an evaporator and a condenser, the condensation circulating device comprises an evaporator water pan, a water storage box, a water pump, a condensed water distributor and a circulating pipeline, the evaporator water pan is suitable for being arranged below the evaporator, the water storage box comprises a water tank and a water level sensing assembly, the water tank communicates with the evaporator water pan and located below the evaporator water pan, the water level sensing assembly is installed in the water tank, the water level sensing assembly comprises a sensing part and a suspension part which are matched to output a waterlevel signal, the water pump starts or stops running according to the water level signal, the condensate water distributor is provided with a drain hole, the drain hole is suitable for facing the condenser, the circulating pipeline is connected to the evaporator water pan and the water tank, connected to the water tank and the water pump and connected to the water pump and the condensate water distributor, and after the condensation circulation device is installed on the cabinet air conditioner, energy consumption of the cabinet air conditioner can be reduced.

Provided is a method of constructing a natural gas liquefaction plant, which can shorten a construction time period by minimizing effect of a lead time for the refrigerant compressor thereon, the method including: transporting a refrigerant compression module body 175 to an installation area 85, wherein the refrigerant compression module body is provided with a frame 120 configured to allow refrigerant compressor 150 for compressing a refrigerant for cooling natural gas to be mounted therein; installing the refrigerant compression module body 175 to the installation area 85; and mounting the refrigerant compressor 150 into a mounting space 130 predefined in the frame 120 of the installed refrigerant compression module body.

The invention relates to the field of sewage treatment, and discloses a method for vacuum concentration and recycling of biogas slurry. The method includes the following steps: adding biogas slurry from an anaerobic fermentation tank into a purification tower, heating and purifying to convert liquid into secondary steam, wherein the secondary steam enters a defoaming tank for defoaming, and then enters a buffer tank; returning, by the liquid in the buffer tank, to the purification tower, feeding the gas in a biogas slurry cooler, and feeding condensed water from the biogas slurry cooler in a water sealing pool; transferring the water in the water seal pool to the anaerobic fermentation tank by a transfer pump to be circulated as fermentation supplement water. According to the method, the biogas slurry is concentrated under negative pressure, nutrient substances such as organic matters and the like are not damaged in the whole treatment process, the organic matter content in the obtained pure biogas slurry is more than 65%, and the pure biogas slurry is directly used in farmland, the temperature of the condensed water collected in the water sealing pool is 50-55 DEG C, the content of NH4-N, sulfide and the like, and volatile substances are less than 300 ppm, and the temperature of the anaerobic fermentation tank is kept constant as supplementary water of the anaerobic fermentation tank, so that the time for liquefaction and acid production is shortened, and the gas production efficiency is improved.

The invention discloses a method for strengthening gas extraction through cooperation of hydraulic punching and cave building and steam injection, which comprises the following steps: firstly, drilling a layer-crossing drill hole in a coal seam, injecting high-pressure water into the drill hole for hydraulic punching, so as to form a punching hole in the drill hole, and forming a plurality of cracks around the punching hole; then discharging residues and waste water in the punching hole through a gas-slag separator, and extracting gas; after gas extraction is conducted for a certain time, high-temperature and high-pressure steam is injected into the punching hole, the high-temperature and high-pressure steam exchanges heat with the coal seam after entering the punching hole, the steam enters cracks of the coal seam to further apply pressure, and the cracks of the coal seam are further expanded and developed to achieve secondary fracturing after being subjected to the effects of high temperature and high pressure; and finally, under the multiple actions of high-temperature hydraulic punching, secondary fracturing of high-temperature and high-pressure steam and reduction of coal seam adsorbability, yield increase of gas extraction is achieved. According to the method, the coal seam gas extraction effect can be effectively improved and lasts for a long time, and meanwhile the workload of drilling construction is reduced.

The invention discloses an engine external reforming unit with a cooling temperature controllable device. The engine external reforming unit comprises an external reformer with the cooling temperaturecontrollable device. An inlet of the external low-temperature fuel reformer is connected with an air inlet pipe and a fuel injection pipe. The air inlet pipe is connected with a gas compressor and aflow meter. The fuel injection pipe is connected with a fuel injection pump and a fuel gasifying tank. An outlet of the external low-temperature fuel reformer is connected with an engine intake duct.Initial reformed fuel and fresh air are controlled and guided into the external low-temperature fuel reformer through the fuel injection pump and the gas compressor correspondingly and have a reactionin the reformer to obtain reformed gas, and the reformed gas is guided out from the outlet of reformer and passes through the cooling temperature controllable device. The engine external reforming unit adjusts the speed of controlling the cooling temperature to drop by the cooling temperature controllable device, guides required gaseous low-temperature oxidation products with different activitiesinto the engine intake duct to be mixed with fresh air and then guides the mixed gas into an engine to achieve activity and concentration stratification cooperative controlled burning of the mixed gas.

The invention discloses an antifog and rainproof motorcycle helmet. The helmet comprises a helmet body; a protective layer is arranged in the helmet body; goggles are arranged on one side, far away from the protective layer, of the helmet body; a cover opening is formed below the goggles. The end, communicated with the helmet body, of the mask opening is of a funnel-shaped structure. An air outletis formed in the end, away from the helmet body, of the mask opening. The air outlet is communicated with the outside, the air outlet is connected with a chemical valve in a sealed mode, the inner side and the outer side of the goggles are each provided with a brushing strip in an abutting mode, the two ends of each brushing strip are each fixedly connected with a positioning block, the helmet body is provided with a plurality of grooves of T-shaped structures, and the positioning blocks are connected with the grooves in a matched and sliding mode. The antifog and rainproof motorcycle helmethas the advantages that the goggles can be automatically brushed when water mist appears on the two sides of the goggles, the sight of a driver is prevented from being affected, and safe driving is guaranteed.

The invention specifically relates to a method for producing L-lactic acid by using green sweet corn. The method is characterized in that a fermentation culture medium is prepared by taking fresh green sweet corn as a major raw material, and L-lactic acid is produced by fermenting heat-resistant lactobacillus of 52 DEG C serving as a culture. The method comprises the following specific steps: (1) making green sweet corn pulp; (2) making the fermentation culture medium; (3) fermenting. The method has the beneficial effects that (1) the production cost is reduced, and production and operation processes are simpler, so that the labor intensity is lowered and the working efficiency is increased; (2) green sweet corn is used directly, so that various nutrients in corn can be fully utilized; (3) the using amount of raw materials is reduced; (4) green sweet corn is utilized fully without producing waste, so that environmental protection is facilitated; (5) the using amount of liquefying enzyme is reduced; (6) the difficulty of a post-treatment decolorizing process is lowered; (7) the yield of L-lactic acid is increased remarkably, and raw materials are transformed to the maximum extent.

The invention discloses a fabricated building construction carbon emission treatment system, and relates to the technical field of environmental protection. The system mainly comprises a mixing tank,a combustion tank, a desulfurization device and a liquefaction device, wherein the bottom of the mixing tank and the bottom of the combustion tank are fixed on the ground through foot supports, a waste gas pipe is arranged at the bottom of one side of the mixing tank, an oxygen pipe is arranged on the side surface of the waste gas pipe, the top of the mixing tank is connected with an induced draftfan mounted at the bottom of the combustion tank through a first ventilation pipe, the output end of the induced draft fan vertically and upwards extends into the bottom of the combustion tank, the top of the combustion tank is fixedly connected with one end of a second ventilation pipe, the other end of the second ventilation pipe is fixedly connected with the desulfurization device, and the desulfurization device is communicated with the liquefaction device through a third ventilation pipe. In the implementation process of the system, the carbon dioxide is combusted, so that the treatment efficiency of the carbon dioxide is effectively improved, the carbon dioxide is liquefied, the effect of change waste materials into things of value is achieved, and the practicability of the treatmentsystem is effectively improved.

The invention discloses a hot-pressing bonding equipment for a multi-layer polyester fiber pad. The hot-pressing bonding equipment structurally comprises a machine body, a control box, a top base, a hydraulic cylinder and a hot-pressing mechanism, wherein the control box is installed on the right side of the machine body, the top base is vertically arranged above the machine body, and the hydraulic cylinder is installed on the top surface of the top base. Due to deformation resilience of a polyester fiber layer, a pressing plate is pushed, the moving speed of the pressing plate is increased, and the matching speed of the pressing plate and a hydraulic rod is changed. Buffer plates of buffer devices are in contact with the fiber layer, so that the fiber layer is buffered, the upward pushingof the fiber layer to the pressing plate is reduced, the normal movable matching of the pressing plate and the hydraulic rod is facilitated, and the hot-pressing bonding of the pressing plate to thefiber layer is accelerated. Due to the high temperature of the fiber layer, hot air easily enters exhaust holes to be liquefied into water drops, and the liquefied water drops on the inner walls of the exhaust holes are removed through removing devices on the inner walls of the exhaust holes, so that the water drops liquefied on the inner walls of the exhaust holes are reduced, the exhaust holes are kept unblocked, the flow speed of gas is increased, and gas emission through the exhaust holes is accelerated.

A cooling device for cooling a test sample has at least two cascade cooling stages, each with at least one coolant line, one compressor (1.1, 2.1), one relief throttle (1.4, 2.4), one evaporator (6, 7) and one liquefier (3, 6). The cooling device has an additional relief throttle disposed between the evaporator (7) of the last cascade cooling stage and the compressor (2.1) of the last cascade cooling stage. This represents a simple possibility of adjusting the cooling temperature, thereby avoiding the use of valves that can be adjusted at low temperatures, since these are complex and expensive.

The invention discloses a bionic temperature control and dehumidification mask, which belongs to the technical field of medical protective masks. The bionic temperature control and dehumidification mask comprises a common medical mask, a gasket, a heat preservation and insulation coating and a Tesla valve group; the bacterium filtering effect of the common medical mask is larger than or equal to 95%; the gasket is arranged in the common medical mask; the bionic heat preservation and insulation coating and the Tesla valve group are arranged on the gasket; and the material of the heat preservation and insulation coating is imitated polar bear hair. The bionic temperature control and dehumidification mask is based on the common medical mask and has a good protection performance; by arranging the bionic heat preservation and insulation coating imitating the polar bear hair, the temperature of the inner side of the mask is regulated and controlled, and expired air is prevented from being liquefied; the adopted gasket prolongs the cooling time of the expired air by using the physical principle, which reduces water vapor liquefaction and fundamentally reduces the occurrence of the situation that water is generated the inner side; meanwhile, water absorption substances are added, so that the dryness of the inner side of the mask is further guaranteed; and moreover, the one-way circulation of the Tesla valve is ingeniously utilized, so that the sucked air is not influenced by the added Tesla valve.

The invention relates to the field of sewage treatment and discloses an anaerobic digestion biogas slurry vacuum concentration and recycling method. The anaerobic digestion biogas slurry vacuum concentration and recycling method comprises the following steps of feeding biogas slurry into a purification tower from an anaerobic digestion tank, performing heating and purification to convert liquid into secondary steam, and feeding the secondary steam into a defoaming tank for defoaming and then into a buffer tank; returning liquid in the buffer tank to the purification tower and gas into a biogasslurry cooler, and discharging condensate water in the biogas slurry cooler into a water seal tank; conveying water of the water seal tank to the anaerobic digestion tank as digestion supplementary water for recycling. According to the anaerobic digestion biogas slurry vacuum concentration and recycling method, the biogas slurry is concentrated at negative pressure, and the entire treatment process avoids destroying nutrients such as organic matters; the content of organic matters in the purified biogas slurry is higher than 65%, and accordingly the purified biogas slurry can be directly applied to farmlands; the condensate water collected in the water seal tank is 50-55 DEG C and contains less than 300 ppm of NH4-N, sulfide and the like, and when serving as the supplementary water of theanaerobic digestion tank, can keep constant temperature, shorten the liquidation and acid production time and improve the yield of biogas.