40results about How to "Reduce high temperature requirements" patented technology

The invention relates to a synthetic method of an anti-tumor medicine, namely N-[2-[[2-(dimethylamino) ethyl] methyl amino]-4-methoxy-5-[[4-(1-methyl-1H-indole-3-yl)-2-pyrimidyl] amino] phenyl]-2-acrylamide (AZD9291) and a key intermediate of the anti-tumor medicine. The synthetic method comprises the following steps: performing Boc acid anhydride protection on 4-fluoro-2-methoxy-5-nitroaniline to obtain 4-fluoro-2-methoxy-5-nitroanilino tert-butyl formate, then reacting with N,N,N'-trimethylethylenediamine to obtain 4-(N,N,N'-trimethylethylenediamino)-2-methoxy-5-nitroanilino tert-butyl formate, then reducing to obtain 2-(N,N,N'-trimethylethylenediamino)-4-methoxy-5-tert-butyl carbamate phenylamine, then completely reacting with acryloyl chloride and directly removing a Boc protecting group to obtain 2-methoxy-4-N,N,N'-trimethylethylenediamino-5-acrylamido phenylamine, and finally reacting with 3-(2-chloropyrimidine-4-yl)-1-methylindole to obtain AZD9291. A process disclosed by the invention is simple in step, relatively high in yield, mild in reaction condition and easy for realization of industrial production.

The invention relates to a test bench with double combustion chambers, double superchargers and low cycle fatigue based on a self-circulation mode, belonging to the technical field of power machinery. When the test bench with superchargers and low cycle fatigue which adopts a self-circulation principle is started and works, an external gas source firstly supplies gas to the combustion chambers and is closed after the superchargers stably runs, and a turbine and a compressor form self circulation, thereby reducing the dependency to power and the consumption of power, only needing fuel oil with a certain quantity and lowering the requirement of a low cycle fatigue test to compressed air and further reducing the requirement to an air compressor. In the test bench, air flows are respectively supplied to turbines of the two superchargers by adopting the two combustion chambers, and a measure that a flow distribution valve is installed before each combustion chamber enables the test bench with the double combustion chambers, the double superchargers and the low cycle fatigue to realize different gas inlet temperatures of each supercharger, thereby the mechanical load and the heat load needed by the low cycle fatigue test is changed, and the high temperature resistance requirements of materials of the flow distribution valve is reduced with high performance price ratio.

The invention discloses a method for growing titanium dioxide particles on a base material. The method includes the steps that 1, acid liquor and a titanium containing compound are mixed and stirred uniformly to obtain hydrothermal reaction liquid; 2, the base material is put in the hydrothermal reaction liquid, hydrothermal reaction is carried out at the temperature of 70-120 DEG C, and the titanium dioxide particles grow on the base material. The acid liquor is at least one of hydrochloric acid solution, nitric acid solution, sulfuric acid solution and hydrofluoric acid solution. The titanium containing compound is tetra-n-butyl titanate and / or isopropyl titanate. The size of the titanium containing compound accounts for 3-14% of the hydrothermal reaction liquid. The preparing method for growing the titanium dioxide particles on the base material is simple, the raw materials are easy to obtain, titanium dioxide firmly grows on the base material, and the crystal form and size of the titanium dioxide particles can be controlled to obtain high photocatalytic efficiency.

The invention relates to a high-temperature flue gas waste heat recovery and dust extraction all-in-one device. The high-temperature flue gas waste heat recovery and dust extraction all-in-one device comprises furnace connectors, material filtering beds, a left wind passing unit, a right wind passing unit and a four-way reversing valve, wherein the furnace connectors and the material filtering beds are connected with air flues on the two sides of a high-temperature kiln. Each wind passing unit comprises an upper wind opening, the corresponding low-temperature area material filtering bed, a low-temperature area frame, the corresponding high-temperature area material filtering bed, a high-temperature area frame, the corresponding furnace connector, a dust collection box and an ash outlet with movable partition plates from top to bottom. Each material filtering bed comprises accumulated ceramic balls. The high-temperature flue gas waste heat recovery and dust extraction all-in-one device allows filtration and ash removing to be conducted in a mode that the leftward direction and the rightward direction are switched in a timed mode and filtration and ash removing are periodically and alternately conducted, and allows ash removing and heat absorption to be achieved in a mode that high-temperature flue gas from one side passes through the corresponding material filtering beds from bottom to top so that filtration and heat accumulation can be achieved, and air from the other side reversely blows the corresponding material filtering beds from top to bottom so that ash removing and heat absorption can be achieved. The ash-laden gas flue can be unceasingly filtered, waste heat in the high-temperature gas flue can be unceasingly recovered, meanwhile, function regeneration and fresh air preheating can be simultaneously conducted, cooling and dirt removing of the high-temperature flue gas are achieved, and combustion efficiency is improved.

The invention relates to the technical field of nuclear power and discloses a system for monitoring a pressure vessel of a reactor of a nuclear power station and a method thereof. The monitoring system contains a monitoring terminal which is disposed at the monitoring point of the monitored pressure vessel of the reactor and is used to acquire and send temperature information of the pressure vessel of the reactor; and a monitoring device which is electrically connected with the monitoring terminal and is used to receive the temperature information sent from the monitoring terminal and monitor the state of the pressure vessel of the reactor according to the temperature information. According to the invention, as there is no need to contact high temperature melts, the cost of the monitoring terminal can be reduced, its installation position is easy to determine and the acquired temperature information is effective and reliable. Based on the temperature information, the state of the pressure vessel of the reactor can be effectively monitored. The system for monitoring the pressure vessel of the reactor of the nuclear power station has a simple structure and requires low cost. The monitoring method provided by the invention is convenient to carry out and has high accuracy.

The present invention relates to a ramjet engine comprising an air inlet channel (14), a combustion chamber (5) and a tail jetting tube, wherein an air drainage structure is arranged at the inlet end of the air inlet channel (14) and comprises a high-pressure air input pipe (2), high-pressure air cavities (3) and nozzles (1); the high-pressure air cavities (3) are connected onto the air inlet channel (14); the high-pressure air in the high-pressure air input pipe (2) enters the high-pressure air cavities (3) and enters the air inlet channel (14) through the nozzles, thereby implementing the effect of introducing a large amount of air. According to the ramjet engine, the air drainage structure is arranged in the air inlet channel; the high-pressure air generated by gasifying a small amount of liquid air is jetted and is used for driving the surrounding air to output a large amount of low-pressure airflow at one end at a high speed, so that the start of the ramjet engine under the static pressure is implemented; the operation stability of the ramjet engine of an aircraft using the engine in a stall condition is achieved.

The invention discloses a gas filtration device, which can facilitate gas filtration through heating gas entering the device. The gas filtration device comprises a casing and a filter element which is mounted inside the casing and is a conductor, wherein the casing is connected with the filter element in an insulated manner to form a first space and a second space which are separated from each other; the gas to be filtered is conveyed to the first space, the gas after filtration is conveyed to the second space; a positive pole connecting end and a negative pole connecting end are arranged on the filter element; during filtration, the positive pole connecting end and the negative pole connecting end are connected with a positive pole and a negative pole of a power supply respectively to form a closed circuit so as to enable the filter element to form a filtration component serving as an electric heating body; the heating power of the electric heating body can enable the temperature of the gas at the gas inlet lower than or equal to the temperature of the gas at the gas outlet; even the gas to be filtered contains substances which is condensed due to a low temperature, the holes of the filter element are not blocked by the precipitation of the substances during the filtration.

The invention provides an ejector and a gas stove provided with the ejector, wherein the inner wall of the ejector is good in gas guiding effect. According to the ejector, a coating is arranged on at least part of the inner wall of the ejector, wherein the coating is high-temperature resisting and the surface of the coating is smooth. The probability of the occurrence of turbulence of gas can be obviously reduced when the gas flow through the ejector, and then the gas is enabled to flow smoothly.

The invention provides methods for preparing transition metal monoxide powder, target material and film. The methods comprise the following steps: transition metal M powder and transition metal M oxide powder in a mole ratio being 1:1-1.2:1 are taken as reaction raw materials and sufficiently mixed with alkali halide with mass being 0.5-2.5 times, preferably, 0.5-2 times of the total mass of the reaction raw materials, the mixture is packaged in a reactor in a vacuum manner and reacts at 900-1,100 DEG C for 5-10 h, and the transition metal monoxide powder is obtained; the transition metal monoxide powder is subjected to spark plasma sintering, and the transition metal monoxide target material is obtained; a film grows on the transition metal monoxide target material, and the transition metal monoxide film is obtained. The transition metal monoxide powder, target material and film can be prepared rapidly at low temperature with the methods.

The invention discloses a tungsten yttrium cathode for a magnetron of a microwave oven. The tungsten yttrium cathode is characterized by comprising the following components in percentage by weight: 0.3 to 3 percent of yttrium, and the balance of tungsten. The invention also discloses a preparation process for the tungsten yttrium cathode for the magnetron of the microwave oven. The tungsten yttrium cathode has brittleness and high temperature performance of products, enhances the plasticity of the products, has good working performance, high plasticity, low production cost and no radiation, reaches the same working effect and greatly reduces the working temperature, so that the tungsten yttrium cathode can greatly reduce the requirements of high temperature resistance of electrode metal materials, meets the requirements on environmental protection, and obviously reduces the manufacturing cost at the same time.

The invention provides a water-soluble graphene electric-conduction ink and a preparation method thereof, wherein the water-based graphene electric-conduction ink composite material comprises water-soluble graphene powder, a linking resin material, an auxiliary agent and a solvent. According to the present invention, the large-batch water-soluble graphene electric-conduction ink can be prepared according to the experimental method of the present invention; deionized water is used as the solvent to replace the traditional organic solvent, the linking resin is selected, and the ratio is used, such that the water-soluble graphene electric-conduction ink having characteristics of good electric conductivity, good toughness, good compression molding and good impact resistance and meeting the adhesion requirement is blended; based on the excellent electric conductivity of the graphene component, the electric conduction stability of the product is increased, and the resistivity is reduced; andthe disadvantages of environment pollution and high cost of the traditional electric-conduction ink are overcome, and the water-soluble graphene electric-conduction ink is expected to be mass-produced.

The embodiment of the invention discloses a die bonding method of an LED chip and an LED panel. The die bonding method comprises the following steps: S10, placing an array substrate comprising a plurality of bonding pads in a first cavity; s20, coating the bonding pad with an adhesive, wherein the adhesive comprises glue and conductive particles dispersed in the glue; s30, the LED chip is placed on the bonding pad coated with the adhesive; s40, compressing the adhesive to enable the conductive particles to be conducted in the thickness direction of the array substrate; and S50, curing the adhesive. According to the LED chip die bonding method provided by the embodiment of the invention, the conductive particles are dispersed in the glue to replace solder paste in the prior art to realize die bonding of the LED chip, so that on one hand, the high-temperature process of solder paste reflow soldering can be avoided, the high-temperature-resistant requirement on the LED chip and an array substrate selected material can be reduced, and the residual thermal stress influence of the high-temperature process can be reduced; on the other hand, different glue materials can be selected according to different application requirements, the material selection is diversified, and the flexible application degree of the process is high.

The invention belongs to the technical field of modified bitumen auxiliaries, and in particular relates to a rubber powder modified bitumen bridging agent and a preparation method thereof. The bridging agent is prepared form the following raw materials in parts by mass: 70-90 parts of deionized water, 10-30 parts of styrene, 2-30 parts of amide functional monomers, 0.75-2 parts of an initiator and 0-2 parts of an emulsifier through the emulsion polymerization. The method specifically comprises steps of: sequentially taking and putting the deionized water, the emulsifier, the amide functional monomers, the styrene and the initiator into a reactor; uniformly stirring, heating to react for 5-7 hours through a water bath, and thus obtaining the uniform polymer emulsion; and removing water and unreacted monomers in the polymer emulsion, and drying to obtain the rubber powder modified bitumen bridging agent. Compared with the prior art, the bridging agent prepared by the method can be used for lowering the high-temperature requirements of a rubber powder modified bituminous mixture in producing, laying and grinding processes, so that pollution is reduced, the performances such as high-temperature track resistance, low-temperature crack resistance, durability and aging resistance of the rubber powder modified bitumen can be obviously improved.

The invention discloses a flexible quasi-SIOx thin film growth device. The device comprises a reaction cavity, a gas path system, a control system, a vacuum system and a tail gas treatment system, wherein the gas path system, the control system, the vacuum system and the tail gas treatment system are connected with the reaction cavity. A radio-frequency electrode is horizontally arranged in the reaction cavity in a suspended manner and is connected with the positive pole of a radio-frequency power source, and the reaction cavity is connected with the negative pole of the radio-frequency powersource. A gas even mixer is arranged below the radio-frequency electrode. A substrate used for thin film deposition is fixedly to the inner side of a top cover of the reaction cavity. The gas even mixer is connected with the gas path system. A first gas outlet is formed on the reaction cavity to be connected with the vacuum system. The gas path system comprises a hexamethyldisiloxane storage tank,a nitrogen storage tank, an oxygen storage tank and a carbon tetrafluoride storage tank, each storage tank is connected with a main pipeline at the front end of the reaction cavity through a branch pipeline, and the main pipeline is connected with the gas even mixer. By means of the device, a flexible quasi-SIOx thin film can be prepared under the room temperature, good packaging performance is achieved, and the flexible quasi-SIOx thin film can be used as a good flexible insulation medium material.

The invention relates to an internal combustion engine with one or more thermoelectric generators (6). The thermoelectric generator generates the current by a temperature difference between the exhaust of the internal combustion engine and a coolant. According to the invention, at least a thermoelectric generator is in thermal contact with an exhaust duct section (4) of the internal combustion engine near a combustion chamber at a heat supply side and is in thermal contact with the coolant for cooling the internal combustion engine and / or a heat conductive member of a cylinder cover (2) at a heat radiation side.

Aiming to prevent his production of dioxins in waste burning, the invention comprises an extendable pipe that speeds up the air flow and connects in series with the exhaust pipe of the No.2 burning chamber, with top and bottom ends of the extendable pipe connecting with the exhaust pipe and the spray tower flange. The double layer structure extendable pipe has inner layer with extendable pipe 4, and the outside layer with a cylindrical tube 3 of same caliber with that of the exhaust pipe of the No.2 burning chamber. At the extendable neck, there are 2-4 fountain heads going through the cylindrical pipe 3 and the extendable pipe 4. It can spray cooling water when the smoke goes to the extendable neck speeding up dramatically, reducing temperature of the 1100DEG C high smoke to that below 200DEG C, effectively avoiding the regeneration of dioxins and protecting the environment.

A system of industrial pulverized - coal fired boiler in small or medium size comprises stokehole pulverizing unit including high pressure air pump , baffle separator , coal supplying pipe , etc ; pulverized coal supplying unit including coal conveying pipe , blanking pipe and air supplying pipe ; pulverized coal combustion unit including central air pipe , primary air pipe , internal and external secondary air pipe ; boiler body including shell , heating stove , two and three returning pipes ; dust removal and desulfurization unit including cyclone separator , bag-duster, desulfurization tower, exhaust fan and chimney. Advantages: fine pulverized coal with grain size above 200 mesh, good low-temp. combustion effect and high heat efficiency

The invention provides methods for preparing transition metal monoxide powder, target material and film. The methods comprise the following steps: transition metal M powder and transition metal M oxide powder in a mole ratio being 1:1-1.2:1 are taken as reaction raw materials and sufficiently mixed with alkali halide with mass being 0.5-2.5 times, preferably, 0.5-2 times of the total mass of the reaction raw materials, the mixture is packaged in a reactor in a vacuum manner and reacts at 900-1,100 DEG C for 5-10 h, and the transition metal monoxide powder is obtained; the transition metal monoxide powder is subjected to spark plasma sintering, and the transition metal monoxide target material is obtained; a film grows on the transition metal monoxide target material, and the transition metal monoxide film is obtained. The transition metal monoxide powder, target material and film can be prepared rapidly at low temperature with the methods.

The invention provides a thermal insulation straight hole injection-production Y joint and a using method thereof. An inner core is arranged in a shell; the tail end of a lifting nipple extends into the shell and is in threaded connection with the inner wall of the head end of the inner core; an upper guiding shoe is installed at the head end of the shell, the tail end of the upper guiding shoe is fixedly welded to the head end of the inner core, and the tail end of the shell is fixedly welded to the tail end of the inner core; a filler cavity is formed between the inner wall of the shell and the outer wall of the inner core, and a filler is filled in the filler cavity. The tool can realize internal and external heat insulation in a steam injection process, provides an internal steel wire or cable operation channel, and can be matched with a production blanking plug to carry out oil extraction production.

The invention belongs to the technical field of handheld appliances and particularly relates to a hair drying device. The hair drying device comprises a handle, a device body and a switch assembly. The switch assembly is arranged on the handle and located at the side, away from a second end, of the handle in the extension direction of the device body, in this way, a user can operate the switch assembly when holding the handle by hand, for example, the right hand of the user holds the handle, the user operates the switch assembly through the thumb, so that single-hand operation is achieved, andthe product experience of the user is improved. In addition, in the extension direction of the device body, the switch assembly is located at the side, away from the second end, of the handle and isaway from a fluid outlet, the influence of a high-temperature fluid medium flowing out from the fluid outlet to the switch assembly is avoided, the demand of the switch assembly for high temperature resistance is reduced, and accordingly the cost of the switch assembly is correspondingly reduced.

The invention discloses a steam turbine and a method for reducing the operating temperature of an outer cylinder of the steam turbine. A high temperature steam outlet channel and a low temperature steam return channel are arranged between the front end steam sealing interval and the back end through flow stage of the steam turbine, a steam inlet of the high temperature steam outlet channel is formed in a steam sealing body on the front end steam sealing interval, and a steam outlet of the high temperature steam outlet channel is formed in the back end through flow stage; and a steam inlet of the low temperature steam return channel is formed in the back end through flow stage, located on the inner side of the steam outlet of the high temperature steam outlet channel, and separated by morethan one through flow stage, and the steam outlet of the low temperature steam return channel is formed in the steam sealing body of the front end steam sealing interval, located on the outer side ofthe steam inlet of the high temperature steam outlet channel, and separated by more than one ring of steam sealing body. The outer cylinder no longer bears the higher operating temperature and can bemade from the low-grade materials, the requirements of the resistance to high temperature of the outer cylinder are reduced, the costs of production and manufacturing are greatly reduced accordingly,and the high economic benefits are achieved.

The invention discloses a tungsten yttrium cathode for a magnetron of a microwave oven. The tungsten yttrium cathode is characterized by comprising the following components in percentage by weight: 0.3 to 3 percent of yttrium, and the balance of tungsten. The invention also discloses a preparation process for the tungsten yttrium cathode for the magnetron of the microwave oven. The tungsten yttrium cathode has brittleness and high temperature performance of products, enhances the plasticity of the products, has good working performance, high plasticity, low production cost and no radiation, reaches the same working effect and greatly reduces the working temperature, so that the tungsten yttrium cathode can greatly reduce the requirements of high temperature resistance of electrode metal materials, meets the requirements on environmental protection, and obviously reduces the manufacturing cost at the same time.

The invention relates to the technical field of purification of industrial boiler flue gas, in particular to a preparation method of a low-temperature denitration filter material based on a water quenching process. The preparation method comprises the following steps: uniformly mixing and stirring vanadium pentoxide powder, an organic modifier and cerous nitrate hexahydrate powder to prepare a low-temperature denitration catalyst precursor emulsion; adding the low-temperature denitration catalyst precursor emulsion into a reaction kettle, and soaking filter cloth in a reaction kettle in vacuum; and finally, drying the soaked filter cloth, and carrying out medium-temperature calcination to obtain the low-temperature denitration filter material. A preparation method of the low-temperature denitration catalyst precursor emulsion comprises the following steps: adding deionized water into the reaction kettle, heating and melting vanadium pentoxide powder, quickly pouring the molten vanadiumpentoxide powder into the deionized water, and conducting ultrasonic stirring and dissolving; adding an organic modifier into the solution, and performing full stirring and uniform mixing to obtain astable vanadium pentoxide emulsion; and finally, adding cerous nitrate hexahydrate powder into the solution, and conducting stirring until the cerous nitrate hexahydrate powder is completely dissolved to obtain the low-temperature denitration catalyst precursor emulsion.