125results about How to "Lower gas temperature" patented technology

The invention discloses an atomic vapor generation method and device based on dielectric barrier discharge. The method comprises subjecting a mixture of inert gas and hydrogen gas to dielectric barrier discharge under the action of alternating electric field to generate plasma; and allowing a to-be-measured element in a to-be-measured sample to form atomic vapor under the action of the plasma. The inventive device adopts dielectric barrier discharge in which a large number of free radicals and quasi-molecules, such as H, having a very active chemical property are generated, and the free radicals and the quasi-molecules easily react with to-be-measured atoms or other free radicals to generate hydride vapor, so as to effectively separate from the matrix and enter a to-be-measured region; matrix interference brought in by a sample pre-treatment process is reduced to therefore improve the signal to noise ratio of the analyzer and reduce the instrument detection limit, and the device is simple and easy to operate; and dielectric barrier discharge can be realized under the atmospheric pressure, so as to realize small volume, low energy consumption and low gas temperature.

The invention discloses a moisturizing refrigerator and a moisturizing control method thereof. The moisturizing refrigerator comprises a refrigerating chamber in which a moisturizing buffer space for generating condensate water is arranged; and an air guiding device and a moistening device are also arranged in the refrigerating chamber, wherein the air guiding device is used for guiding air in the refrigerating chamber into the moisturizing buffer space, and the moistening device is used for moistening the refrigerating chamber by utilizing the condensate water generated in the moisturizing buffer space. Because the water vapor circulation in the refrigerating chamber is enhanced, the humidity in the refrigerating chamber can be effectively increased and kept at 80%-90%, andthe refreshing effect of the refrigerating chamber is obviously improved.

A small microcombustion heater which can realize reliable combustion. The heater has a premixed gas passage which reaches a combustion chamber, and a passage for a combustion gas drawn from the combustion chamber. The passages are arranged in a spiral form in a manner such that a heating wall is provided between the passages. The width of the premixed gas passage is a quenching distance or less, where the quenching distance is determined depending on the premixed gas. The heater has two outer faces for holding the spiral passages from both sides of the upper and lower edges of the heating wall, and at least one of the outer faces is a heating surface for emitting radiant heat. Typically, the spiral passages are placed between a heat-resisting heating plate and a heat insulating plate, and an outer face of the heat-resisting heating plate functions as the heating surface.

The invention discloses a low temperature cold air two-stage refrigeration system and a cold air jet machine thereof. A two-stage refrigeration structure is used, and the gas temperature at a cold air jet outlet can be effectively decreased to -60 DEG C minimum; an air cooler is used, thereby having high jet speed, being beneficial to breaking and removing chips, and having low cooling temperature suitable for high speed and high accuracy machining; and simultaneously, the two-stage refrigeration structures is respectively with a refrigeration bypass used for cooling a medium at the inlet of a compressor; therefore, along with the prolonged life cycle, the temperature of the compressor can not rise without limit, thereby keeping a long-time proper operating state. Through the regulation of the flow rate of the medium of the refrigeration bypass, the temperature of the cold air is capable of being regulated indirectly; the structure is simple, the operation is convenient, and the use cost is decreased.

The invention concretely relates to an automobile part network transaction method and system. The method comprises the steps that a bid inviting client side transmits bid inviting information to a server; the server performs matching of appropriate bid winners and transmits the bid inviting information to bidders; bidding client sides perform matching of automobile parts according to the bid inviting information and perform automatic bidding or artificial bidding according to the matching result so as to generate bidding information and transmit the bidding information to the bid inviting client side; the bid inviting client side acquires and displays multiple pieces of bidding information, determines the bid winner and generates bid winning information and transmits the bid winning information to the bid winner; the bidding client side of the bid winner generates a two-dimensional code delivery order and transmits a delivery message to a delivery client side; the delivery client side prompts a delivery side to perform delivery according to the delivery message; and the bid inviting side receives the automobile parts and then confirms receiving of the automobile parts through the bid inviting client side and performs evaluation. According to the automobile part network transaction method and system, buying and selling and delivery of the automobile parts are enabled to be more convenient and rapid through smooth interaction and cooperation of the three side of the bid inviting client side, the bidding client sides and the delivery client side.

The invention discloses a liquid-propellant rocket engine injector integrated with an electric igniter. The liquid-propellant rocket engine injector comprises a bottom plate, an outer barrel, fuel nozzles, oxidizing agent nozzles, a top cover and an igniter plug; the outer barrel is connected with the top cover and provided with a center shaft, and the center shaft is connected with the barrel wall of the outer barrel through an annular transverse plate; an inner cavity of the outer barrel is divided into an upper cavity and a lower cavity through the annular transverse plate; the side wall ofthe lower cavity is provided with fuel through holes, and the bottom of the lower cavity is connected with the bottom plate; the bottom plate is uniformly provided with a plurality of fuel nozzle fixing holes, the annular transverse plate is uniformly provided with a plurality of oxidizing agent nozzle fixing holes, the oxidizing agent nozzle fixing holes correspond to the fuel nozzle fixing holes one by one, and each fuel nozzle and the corresponding oxidizing agent nozzle are connected between each pair of fuel nozzle fixing hole and oxidizing agent nozzle fixing hole in a matched mode; theposition, in the upper cavity, of side wall of the center shaft is uniformly provided with oxidizing agent through holes, and the position, in the lower cavity, of side wall of the center shaft is uniformly provided with a set of upper fuel through holes and a set of lower fuel through holes. The liquid-propellant rocket engine injector is suitable for a double-component liquid-propellant rocketengine, the electric igniter and the injector are combined into a whole, and system simplified design is achieved.

The invention provides a passive containment cooling and pressure-reducing system. A reactor is arranged in the containment. The system includes a containment pressure-inhibiting sub system and a containment cooling sub system, wherein the containment pressure-inhibiting sub system includes a pressure-inhibiting water tank and a discharge channel arranged in the containment. The containment cooling sub system can be arranged in various structures. The containment cooling sub system and the containment pressure-inhibiting sub system are passive and are free from being driven by external power supplies. In the invention, by means of the passive measurement for reducing vapor amount and reducing gas temperature, the pressure in the containment is reduced, so that not only are functions of early-stage peak clipping and pressure reducing and long-time cooling and pressure reducing satisfied but also the volume of the containment is not necessary to increase, thereby reducing design size of the containment and furthermore reducing cost.

The invention provides an engine waste gas energy utilization device with a compact structure and high energy utilization rate and an automobile using the same. The device comprises a hollow shell with an air inlet and an air outlet, wherein a catalytic carrier of a three-way catalytic converter and a thermoelectric conversion element are arranged along the flowing direction of waste gas in the shell in turn; and a temperature difference generation device to be communicated with the cooling pipe of the automobile is arranged at the position close to the thermoelectric conversion element on the shell. The structure of the automobile using the engine waste gas energy utilization device is as follows: the waste gas outlet of the engine of the automobile is communicated with the air inlet of the shell of the engine waste gas energy utilization device; the air inlet of the muffler of the automobile is communicated with the air outlet of the shell of the engine waste gas energy utilization device; the cooling system of the automobile is communicated with the temperature difference generation device to form closed-loop circulation; and the electrodes of the storage battery of the automobile are connected with the electrode of the thermoelectric conversion element. The engine waste gas energy utilization device has a simple and compact structure and can utilize the waste gas for generating power and reduce oil consumption.

The invention relates to purification of bulk gases in the manufacturing field of semiconductor chips. An ultrapure purification process for nitrogen, argon and oxygen comprises the following steps: catalytic oxidation procedure: adopting an oxidation catalyst with metal oxide as a carrier to load palladium; heating raw gas to 300 DEG C, then enabling the heated gas to enter a catalytic reactor, and oxidizing methane, carbon monoxide, hydrogen and non-methane in the raw gas by an oxidation catalyst; adsorption procedure: enabling gas which is treated by the catalytic oxidation procedure and only contains three impurities, namely oxygen, water and carbon dioxide, to enter the subsequent adsorption procedure for purifying, adsorbing the oxygen, the water and the carbon dioxide by deoxidizerpurification, and removing the oxygen, the water and the carbon dioxide to below 1 ppb. The process disclosed by the invention is simple and no excess oxygen is needed to be additionally added into the raw gas, so that the regeneration period of the adsorption procedure is effectively prolonged; a deoxidizer has high adsorption capacity for the oxygen, the water and the carbon dioxide, and therefore, the operation cost of a purifier is reduced.

The invention discloses a high-pressure exhaust gas recirculation (EGR) system of a vehicle engine and relates to an EGR system. The high-pressure EGR system of the vehicle engine passes through the engine, wherein the engine is provided with a gas inlet and a gas outlet and comprises a gas inlet pipeline, a gas outlet pipeline, an EGR pipeline and an electronic pressurizer. The gas inlet pipeline is arranged in front of the gas inlet. The gas outlet pipeline is arranged behind the gas outlet. The ERG pipeline is connected between the gas inlet and the gas outlet pipeline of the engine and used for conducting ERG on part of gas exhausted by the gas outlet pipeline and then sending the exhaust gas to the engine again. The electronic pressurizer is arranged on one side of the gas inlet pipeline through a pipe. The electronic pressurizer is arranged on the gas inlet pipeline of the high-pressure EGR system, so that parts are fewer, the application cost is low, and the arrangement difficulty is relatively low; and actuators needing to be controlled are fewer, so that calibration is easy to conduct, the oil-saving effect of the electric pressurizer and the high-pressure EGR technology which are applied to a pressurizing gasoline engine is improved, and application of the electric pressurizer and the high-pressure EGR technology to the pressurizing gasoline engine is promoted.

The invention discloses an extrusion forming device for curing agent coating production. The device comprises a forming box, a cold air box and an extrusion tube, wherein a mounting opening is formedin the middle of the outer wall of one side of the forming box, the extrusion tube is fixed to the inner wall of the mounting opening through screws, air supply pipe inserting holes are formed in thebottoms of the outer walls of the opposite sides of the cold air box and the forming box, the inner walls of the two air supply pipe inserting holes are connected with a same air supply pipe, a waterbath box is welded to the outer wall of the extrusion tube, the water bath box is fixed to the cold air box through screws, a mounting groove is formed in the outer wall of the bottom of the water bath box, a semiconductor chilling plate is fixed to the inner wall of the mounting groove through screws, and a draught fan is fixed on the inner wall of one side of the cold air box through screws. According to the device, the temperature in the product extrusion process can be ensured, the product quality is improved, formed product cooling can be accelerated, the production efficiency is improved, a cutter cuts off extrusion raw material, and meanwhile, a extrusion block carries out extrusion forming, so that the convenient and fast degree of operation is improved.

The invention discloses a flange plate heat exchange type automobile tail gas power generation device, and belongs to the field of automobile tail gas power generation. The flange plate heat exchange type automobile tail gas power generation device comprises a tail gas pipe, the tail gas pipe is divided into a high temperature section, a power generation and heat dissipation section and an exhaust section, and a first power generation module is arranged on the periphery of the high temperature section; the power generation and heat dissipation section is provided with at least two flange plates in the circumferential direction, the flange plates are respectively of a shell structure, internal cavities of the flange plates communicate with the tail gas pipe, included corners formed by the two sides of each flange plate and the tail gas pipe communicate with the exterior, and second power generation modules are arranged on the flange plates; and through the flange plates, the surfaces making contact with air are expanded, and the power generation modules can be fixed more easily. According to the device, through improved design of the structure of the tail gas pipe, the heat dissipation performance of the tail gas pipe is not influenced on the premise of thermoelectric power generation, power generation and heat dissipation are effectively combined, and the development of the tail gas power generation technology is greatly promoted.

The invention belongs to the technical field of phone information safety, providing a phone information safety managing method based on multi-password unlocking. The method includes steps as follows: displaying an unlocking interface; matching a password which is input from the unlocking interface by a user with a preset password which includes an administrator password and a visitor password; entering an administrator mode if the password input by user is matched to the administrator password; and entering a visitor mode if the password input by user is matched to the visitor password. By setting multiple unlocking passwords and allocating different permissions to the unlocking passwords, the method disclosed can protect the user's privacy and improve the information safety of a phone when the phone is lent to others.

The invention relates to an air-cylinder-exterior cold water and an air-cylinder-interior hot water integrated double injection diesel engine structure. The air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure includes a diesel engine body, an inlet manifold, an exhaust manifold, an air-cylinder-interior sprinkler and an oil atomizer which are arranged in the diesel engine body, a high pressure water pump unit which communicates with the air-cylinder-interior sprinkler, an air-cylinder-exterior sprinkler which is arrangedin the inlet manifold, a low pressure water pump unit which communicates with the air-cylinder-exterior sprinkler, a heat exchanger which is arranged between the low pressure water pump unit and the high pressure water pump unit, and an electronic controller which is electrically connected with the oil atomizer, the air-cylinder-interior sprinkler, the high pressure water pump unit, the air-cylinder-exterior sprinkler and the low pressure water pump unit. Compared with the prior art, according to the air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure, hot water sprayed in the air cylinder is rapidly vaporized and the energy is absorbed, the temperature in the air cylinder nearby the combustion top dead center can belowered, and the emission of NOx can be reduced; cold water is sprayed to the inlet manifold at the same time, heat energy is absorbed through evaporation of water, the gas temperature entering the air cylinder is decreased, and the air inlet density is increased; and the charging efficiency is increased, the output per liter of the diesel engine is improved, and the dynamic property is improved.

A method is described for drying wood combined into stacks (2) with the aid of a drying gas stream which flows through the wood stacks (2), which, by removing moist waste gas (8) after the wood stacks (2) and supplying fresh gas (9) before the wood stacks (2), is passed through the wood stacks (2) partially in circulation, wherein the wood is dried more rapidly with a moisture content above the fibre saturation than with a moisture content below the fibre saturation. In order to provide advantageous, economical drying conditions, it is proposed that before its slower drying with the aid of the drying gas stream guided partially in circulation, the wood is dried more rapidly with a drying gas stream consisting substantially only of fresh gas.

The invention discloses a turbofan type vehicle engine. The turbofan type vehicle engine mainly consists of a fan, a low-pressure compressor, a high-pressure compressor, a combustion chamber, a high-pressure turbine, a low-pressure turbine, a spraying pipe, a high-pressure shaft, a low-pressure shaft, an inner duct and an outer duct, wherein the inner duct is supported on the outer duct through a front bracket and a back bracket; the high-pressure shaft and the low-pressure shaft are respectively supported in the inner duct through a front bearing and a back bearing; the high-pressure shaft is hollowed; the low-pressure shaft penetrates through the high-pressure shaft; the fan, the low-pressure compressor and the low-pressure turbine are mounted on the low-pressure shaft through a one-way bearing; and the high-pressure compressor and the high-pressure turbine are mounted on the high-pressure shaft through a one-way bearing. The turbofan type vehicle engine has such advantages as light mass, high output power, strong power and high thrust-weight ratio, and in particular, is suitable for such vehicles having higher requirements on speed as sports cars.

The invention relates to a heat exchanger which used the cross-helical tube, involving an exhaust recycle heat exchanger. For improving the engine exhaust recycle heat exchanger and increasing the heat exchange efficiency. The exchanger includes the heat exchange tube, shell and the tube board. Of which the heat exchange tube is the stainless steel tube which has the entad raised cross-helical groove on the surface, and the section shape of the tube is the flat shape. The height and width of the section shape in the flat shape heat exchange tube are unlikeness, and the opposite rotating direction helix line cross on the relative long edge of the tube as the 'X' shape. Because of the application of the cross-helical heat exchange tube, the tube inside and outside is not easy to dirty and increased the heat exchange efficiency, the heat exchanger is particularly suitable for the exhaust gas recycle coolers of a vehicle engine, reduce the exhaust discharge temperature and enhance the vehicle engine discharge performance indicators to meet environmental discharge requirement. At the same time, the invention can also be used in a turbocharger system to improve the engine performance.

The invention relates to a natural gas engine structure for mixed double-injection of cylinder outer cold water and in-cylinder hot water. The natural gas engine structure comprises a natural gas engine body, an air inlet manifold, an exhaust manifold, a natural gas injector, a spark plug, an in-cylinder water sprayer, a high-pressure water pump unit, a cylinder outer water sprayer, a low-pressurewater pump unit, a heat exchanger and a electronic controller; and the in-cylinder water sprayer is arranged in the natural gas engine body, the high-pressure water pump unit communicates with the in-cylinder water sprayer, the cylinder outer water sprayer is arranged in the air inlet manifold, the low-pressure water pump unit communicates with the cylinder outer water sprayer and the electroniccontroller is electrically connected with the natural gas injector, the spark plug, the in-cylinder water sprayer, the high-pressure water pump unit, the cylinder outer water sprayer and the low-pressure water pump unit. Compared with the prior art, the natural gas engine structure has the advantages that hot water sprayed in a cylinder is used for rapidly vaporizing to absorb heat, so that the temperature in the part, close to a combustion top dead center, of the cylinder is reduced, and the generation of knocking is inhibited; meanwhile, the heat for heating the water comes from recovering tail gas energy by a exchanger, so that the working medium in the combustion process is increased, the heat loss is reduced, and the heat efficiency of the natural gas engine is improved.

The invention relates to a cylinder interior and exterior cold water mixing double spraying natural gas engine structure. The cylinder interior and exterior cold water mixing double spraying natural gas engine structure comprises a natural gas engine body, an inlet manifold, an exhaust manifold, a natural gas injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit and an electronic controller, wherein the sparking plug and the cylinder interior water spraying device are arranged in the natural gas engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inletmanifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the natural gas injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared with the prior art,the cylinder interior and exterior cold water mixing double spraying natural gas engine structure has the beneficial effects that the purposes of improving a power performance, economical efficiency and an emission performance can be achieved simultaneously by arranging the two water spraying devices in a cylinder and on the inlet manifold; the heat efficiency and power per liter of a natural gasengine can be improved; the emission of nitrogen oxide is reduced; and the engine knocking can be effectively inhibited.

The invention discloses an intake-exhaust manifold of an explosion-proof diesel engine. The intake-exhaust manifold of the explosion-proof diesel engine comprises an intake pipe, an exhaust pipe and a cooling water channel, wherein the intake pipe and the exhaust pipe are a whole. The whole penetrates through the inner space of the cooling water channel, and a water inlet and a water outlet are formed in the cooling water channel. The intake-exhaust manifold of the explosion-proof diesel engine can reduce the gas temperature of the intake pipe and the exhaust pipe, thus safety performances of the intake pipe and the exhaust pipe are improved, and meanwhile, airflow resistances in the intake pipe and the exhaust pipe are reduced.

The invention discloses efficient purification activated carbon environment-friendly waste gas treatment equipment, and relates to the technical field of waste gas treatment.The efficient purification activated carbon environment-friendly waste gas treatment equipment comprises a base, a tank body is fixedly connected to the top of the base, a charging door is fixedly connected to the surface of the tank body, and a protection mechanism is fixedly connected to the left side of the inner side face of the tank body; an activated carbon interlayer is fixedly connected to the side, away from the protection mechanism, of the inner side face of the tank body, a temperature control mechanism is fixedly connected to the right side of the surface of the tank body, and the protection mechanism comprises a connecting wall. According to the efficient-purification environment-friendly activated carbon waste gas treatment equipment, through cooperative use of a protection mechanism, a stirring mechanism, a temperature control mechanism, a heat transfer mechanism and other mechanisms, the problems that activated carbon is inactivated due to the fact that lampblack in waste gas blocks activated carbon adsorption holes, and the adsorption capacity of the activated carbon is greatly reduced due to high-temperature waste gas are solved.