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76results about How to "Reduce gas volume" patented technology

Vehicle abnormality processing system

The embodiment of the invention provides a vehicle abnormity processing system, which is applied to a new energy vehicle and comprises a plurality of sampling devices, a first transmission pipeline and a specified processing unit, each sampling device is arranged on a sampling point position in a vehicle body of the new energy vehicle, and the plurality of sampling point positions comprise sampling point positions corresponding to a battery pack of the new energy vehicle; the first transmission pipeline is used for connecting the plurality of sampling devices and the specified processing unit; the specified processing unit is used for acquiring the to-be-analyzed gas transmitted by the target sampling device; acquiring a gas analysis result obtained by analyzing the to-be-analyzed gas; according to a preset corresponding relation, executing a first processing operation corresponding to the gas type of the to-be-analyzed gas; the target sampling device corresponds to the target sampling point position, and the to-be-analyzed gas is the gas transmitted to the specified processing unit through the first transmission pipeline under the condition that the target sampling device judges that the target sampling point position is abnormal.
Owner:CHINA AUTOMOTIVE INNOVATION CORP

Thermal runaway flue gas treatment method and thermal runaway flue gas treatment device

The invention provides a thermal runaway flue gas treatment method and a thermal runaway flue gas treatment device, which are used for effectively treating thermal runaway flue gas so as to solve the problem of potential safety hazards when the thermal runaway flue gas is discharged out of a battery shell. The thermal runaway flue gas treatment method comprises the following steps: conveying thermal runaway flue gas generated by thermal runaway of a battery into an organic solvent, and treating the thermal runaway flue gas, the organic solvent is at least one of an ester solvent, an alcohol solvent or an aldehyde solvent; and conveying the thermal runaway flue gas treated by the organic solvent into an adsorption medium for treatment. According to the combined treatment mode, the gas amount of the treated thermal runaway flue gas is greatly reduced, meanwhile, the thermal runaway flue gas is harmless, and the problem of potential safety hazards caused by the fact that the thermal runaway flue gas is discharged out of a battery shell is solved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Floating ring sealing structure, aero-engine and rub-impact risk assessment method of aero-engine

The invention relates to the technical field of aero-engines, and particularly provides a floating ring sealing structure, an aero-engine and a rub-impact risk assessment method of the aero-engine. The floating ring sealing structure comprises a casing, a sealing moving ring and a floating ring assembly which are arranged in a nested mode, the floating ring assembly is located between the casing and the sealing moving ring, and the floating ring assembly and the sealing moving ring are in clearance fit and are arranged in a non-centering mode. The floating ring sealing structure is ingenious in design, the non-contact sealing effect is guaranteed, and meanwhile the amount of gas leaked into a bearing cavity can be reduced. In addition, according to the rub-impact risk assessment method for the floating ring sealing structure, main influence factors and a detailed solving process of the floating characteristic of the floating ring assembly are given, and a basis is provided for quantitative analysis of the follow-up characteristic of the floating ring sealing structure; the buoyancy is analyzed by adopting a finite volume method three-dimensional grid, a necessary flow field area is defined, the precision of a calculation result is higher than that of a calculation result adopting an empirical formula, and the calculation efficiency is considered.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Positive and negative pressure ultrasonic cleaning system and method for water conservancy project

The positive and negative pressure ultrasonic cleaning system comprises a cleaning tank, an electric control device is arranged on the upper portion of the side wall of the cleaning tank, a plurality of ultrasonic transducers are evenly embedded in the bottom wall of the cleaning tank, the section of the top of the cleaning tank is round, and a frequency modulation ultrasonic generator is installed on the upper portion of the side wall of the cleaning tank. The electric control device is connected with the frequency modulation ultrasonic generator, and the frequency modulation ultrasonic generator is connected with the ultrasonic transducers through wires; the electric control device is connected with a display screen; the cleaning tank is connected with a negative pressure aeration box through a cleaning liquid exchange mechanism, a positive pressure generation structure is arranged at the top of the cleaning tank, and a negative pressure generation structure is arranged at the top of the negative pressure aeration box. The invention further discloses a corresponding cleaning method. The device has the advantage of cleaning after negative-pressure degassing, the cleaning efficiency and the cleaning effect are improved through positive-pressure cleaning, gas dissolved in cleaning liquid is rapidly removed through negative-pressure aeration, standing waves are eliminated through frequency conversion so as to enhance the cleaning uniformity, and the cleaning effect is improved. Standing waves are generated through fixed frequency, and the cleaning effect on the part, with most dirt, of a workpiece is enhanced through an antinode on the premise that power is not increased.
Owner:河南省水务规划设计研究有限公司山西分公司 +1

Engine air inlet flow and pressure stabilizing device

An engine air inlet flow and pressure stabilizing device comprises a main box body, an air inlet pipe is arranged on one side of the main box body, and the two ends of the air inlet pipe communicate with the outside and the inside of the main box body correspondingly; the air inlet mechanism is arranged in the main box body and is communicated with the air inlet pipe; the flow and pressure stabilizing mechanism is arranged in the main box body and communicates with the air inlet mechanism; the flow stabilizing and pressure stabilizing mechanism comprises an auxiliary box body and a flow stabilizing and pressure stabilizing part arranged in the auxiliary box body, the auxiliary box body is installed in the main box body, and one side of the auxiliary box body is communicated with the air inlet mechanism through a main connecting piece; the air outlet mechanism is mounted on the main box body, one end of the air outlet mechanism is communicated with the other side of the auxiliary box body, and the other end of the air outlet mechanism is communicated with the outside of the main box body. Normal work of the engine can be guaranteed, and the requirements for high efficiency, low oil consumption, low emission and stable operation of the engine are met.
Owner:CHINESE ACAD OF AGRI MECHANIZATION SCI GRP CO LTD

Positivelektrodenaktivmaterial für sekundärbatterie, verfahren zur herstellung davon und lithiumsekundärbatterie damit

The present invention relates to a positive electrode active material for a secondary battery which is a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol% or more and the manganese (Mn) in an amount of 5 mol% or more based on a total amount of transition metals, and at least one particle growth-promoting element selected from the group consisting of strontium (Sr), zirconium (Zr), magnesium (Mg), yttrium (Y), and aluminum (Al), wherein the electrode positive active material is composed of a single particle.
Owner:LG ENERGY SOLUTION LTD

A hard skeleton limb sleeve

The present invention discloses a hard skeleton limb sleeve, comprising a first skeleton, a second skeleton, an airbag and an electric screw; the first skeleton and the second skeleton are made of hard materials; one side of the first skeleton and one side of the second skeleton are connected by a hinge to form a tubular structure; the airbag is located inside the tubular structure and is used to apply pressure to the limb; the electric screw is provided at the connection between the first skeleton and the second skeleton and is used to open or close the tubular structure. The present invention adopts a hard skeleton material to make a limb sleeve, which can limit the expansion space of the limb sleeve, so that the amount of gas required for the sleeve to reach the expected pressure is greatly reduced, so that the host of the air pressure therapy device can use an air pump with a smaller flow rate, which can reduce the volume of the product and reduce the cost.
Owner:BEIJING LONGMAFUTU TECH CO LTD

Battery cell formation method and device, battery cell and electronic equipment

The invention is applicable to the field of battery cell manufacturing, and provides a battery cell formation method and device, a battery cell and electronic equipment.The method comprises the steps that in a first set pressure environment, a semi-finished battery cell to be formed is charged according to first set current until the charging voltage reaches first cut-off voltage; under a second set pressure environment, charging the semi-finished battery cell according to a second set current until the charging voltage reaches a second cut-off voltage; the second set pressure is greater than the first set pressure, the second set current is greater than the first set current, and the second cut-off voltage is greater than the first cut-off voltage; carrying out vacuumizing treatment and air bag cutting treatment on the semi-finished battery cell; charging the semi-finished battery cell until the charging voltage reaches a third cut-off voltage; and packaging the semi-finished battery cell to obtain a finished battery cell. The problem that a large amount of gas exists in a finished battery cell can be solved.
Owner:SHENZHEN UTILITY ENERGY CO LTD

Method for accelerating activation speed of electrolytic reactor

The invention discloses a method for accelerating the activation speed of an electrolysis stack, which comprises the following steps: S1, introducing deionized water to the two sides of hydrogen and oxygen of the electrolysis stack, keeping the temperature of the deionized water to be T0, and keeping the electrode of the electrolysis stack to be fully wet; s2, activating the electrolytic stack by adopting a constant voltage strategy, controlling the average single battery of the electrolytic stack to be V1, controlling the water temperature at the outlet of the electrolytic stack to be T1, and adjusting the hydrogen pressure and the oxygen pressure at the outlet of the electrolytic stack to be P1 and P2 respectively; s3, under the set average single battery V1, along with the increase of the running time, the water temperature at the outlet of the electrolytic stack is gradually increased, the current density is continuously increased, and the hydrogen pressure and the oxygen pressure at the outlet are maintained to be P1 and P2; and S4, stabilizing for a period of time after the water temperature at the outlet of the electrolytic reactor rises to the specified operating temperature Tend until the average single-cell voltage of the electrolytic reactor does not change obviously, and completing the activation operation.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES +1

Filling system and filling method

The invention relates to the technical field of liquid injection, and discloses a filling system and a filling method.The filling system comprises a valve set, a first valve set, a second valve set, a third valve set and a fourth valve set, the first valve set and the second valve set are communicated with a first opening of a two-way hydraulic unit, and the third valve set and the fourth valve set are communicated with a second opening of the two-way hydraulic unit; the vacuumizing piece is communicated with the first channel and the third channel; the liquid injection part is communicated with the second channel and the fourth channel; the filling system has a vacuumizing state, a first liquid injection state and a second liquid injection state, in the vacuumizing state, the first channel and the third channel are opened, and the second channel and the fourth channel are closed, in the first liquid injection state, the first channel and the fourth channel are opened, and the second channel and the third channel are closed, and in the second liquid injection state, the second channel and the third channel are opened. The first channel and the fourth channel are closed. The filling system can reduce the gas amount in the two-way hydraulic unit, increase the liquid filling amount in the two-way hydraulic unit, and improve the performance and reliability.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Thermal runaway flue gas treatment method and thermal runaway flue gas treatment device

The invention provides a thermal runaway flue gas treatment method and a thermal runaway flue gas treatment device which are used for effectively treating thermal runaway flue gas so as to solve the problem of potential safety hazards caused by the fact that the thermal runaway flue gas is discharged out of a battery shell. The thermal runaway flue gas treatment method provided by the invention comprises the following steps: conveying thermal runaway flue gas generated by thermal runaway of a battery to 0.05-0.5 mol / L of an alkali solution, and treating the thermal runaway flue gas by the alkali solution; and carrying out ignition treatment on the thermal runaway flue gas treated by the alkali solution. Electrolyte, acid gas and the like in the thermal runaway flue gas are treated by the alkaline solution with the concentration, and then combustible gas in the residual gas is ignited, so that the treated gas does not have flammability and also has harmlessness, and the safety of an energy storage system is improved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Hardware fitting drying device

The utility model discloses a hardware fitting drying device, and relates to the technical field of hardware fitting machining. The drying device comprises a drying box, the upper end of the drying box is open, a sealing cover plate is installed on the drying box in a hinged mode, a heat supply mechanism is arranged on the sealing cover plate, two air dispersing boxes are symmetrically installed in the drying box, one sides of the two air dispersing boxes are correspondingly installed on the two side walls of the drying box respectively, and the other sides of the two air dispersing boxes are arranged on the two side walls of the drying box respectively. A plurality of ventilation holes are formed in the other sides of the ventilation boxes, a material storage mechanism is arranged in the drying box and located between the two ventilation boxes, a filter box is fixedly installed on the lower side wall of the drying box, a dust filtering mechanism is arranged in the filter box, an air suction mechanism is arranged between one ventilation box and the filter box, and the other ventilation hole is formed in the other side of the other ventilation box. And a gas communicating mechanism is arranged between the other gas dispersing box and the filter box. The device can effectively reduce the amount of gas polluted by harmful substances, so that the device is more environment-friendly, and the workload required by gas purification in the later period can be reduced.
Owner:DONGGUAN SHUHUA METAL PROD CO LTD

Thermal runaway flue gas treatment device

The utility model provides a thermal runaway flue gas treatment device which is used for effectively treating thermal runaway flue gas so as to solve the problem of potential safety hazards caused by the fact that the thermal runaway flue gas is discharged out of a battery shell. The thermal runaway flue gas treatment device comprises at least one treatment tank body and an ignition unit, a flue gas inlet and a flue gas outlet are formed in the treatment tank body; the treatment tank body is filled with 0.05-0.5 mol / L of aqueous alkali and is used for treating thermal runaway flue gas generated by thermal runaway of the battery; and the ignition unit is used for carrying out ignition treatment on the thermal runaway flue gas treated by the alkali solution. Electrolyte, acid gas and the like in the thermal runaway flue gas are treated by the alkaline solution with the concentration, and then combustible gas in the residual gas is ignited, so that the treated gas does not have flammability and also has harmlessness, and the safety of an energy storage system is improved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Thermal runaway flue gas treatment method and thermal runaway flue gas treatment device

The invention provides a thermal runaway flue gas treatment method and a thermal runaway flue gas treatment device which are used for effectively treating thermal runaway flue gas so as to solve the problem of potential safety hazards caused by the fact that the thermal runaway flue gas is discharged out of a battery shell. The thermal runaway flue gas treatment method comprises the following steps: conveying thermal runaway flue gas generated by thermal runaway of a battery to 0.05-0.5 mol / L of an alkali solution, and treating the thermal runaway flue gas of the battery. The alkaline solution with the concentration not only can fully treat electrolyte carried in the thermal runaway flue gas, but also can treat part of gas in the thermal runaway flue gas, the gas amount of the thermal runaway flue gas treated by the alkaline solution with the concentration is greatly reduced, and the thermal runaway flue gas treatment efficiency is improved. Therefore, the problem of potential safety hazards caused by the fact that thermal runaway smoke is discharged out of the battery shell is solved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

A kind of highly weather-resistant water-based acrylic polyurethane topcoat and preparation method thereof

The present application relates to the technical field of waterborne coatings, and specifically discloses a highly weather-resistant waterborne acrylic polyurethane topcoat and a preparation method thereof. The highly weather-resistant waterborne acrylic polyurethane topcoat is prepared by mixing component A and component B, and component B is made of the following raw materials in parts by mass: 50-65 parts of isocyanate, 10-15 parts of cosolvent, and 3-5 parts of composite lauryl amine. The preparation of composite lauryl amine includes the following steps: (1) acylation reaction of lauryl amine to obtain acylated lauryl amine; (2) reaction of acylated lauryl amine with bromine to obtain brominated lauryl amine; (3) grafting brominated lauryl amine with graphene oxide to obtain product M; (4) dissolving M, deprotecting, and grinding to obtain composite lauryl amine. Component A and component B are mixed to obtain a highly weather-resistant waterborne acrylic polyurethane topcoat. Using composite lauryl amine as an additive to component B can reduce the loss of isocyanate in the raw materials and reduce the amount of CO2 gas generated during the mixing process of the topcoat.
Owner:SHAANXI HONGRUI CHEM TECH CO LTD

Thermal runaway flue gas treatment device and energy storage equipment

The utility model provides a thermal runaway flue gas treatment device and energy storage equipment, and mainly solves the problem of potential safety hazards caused by thermal runaway of an existing lithium battery. A liquid treatment tank of the thermal runaway flue gas treatment device is connected with a liquid inlet pipeline, the liquid inlet pipeline is used for introducing external water into the liquid treatment tank, and solid alkali in the liquid treatment tank is dissolved by water to form an alkali solution. When the battery works normally, only solid alkali is placed in the liquid treatment tank, the requirement of the solid alkali on the material of the liquid treatment tank is not high, so that the manufacturing cost of the device is relatively low, meanwhile, only solid alkali is placed in the liquid treatment tank, the weight of the whole liquid treatment tank is small, and the liquid treatment tank is very convenient to mount and dismount. When the thermal runaway of the battery occurs, the liquid inlet pipeline introduces external water into the liquid treatment tank to form an alkali solution, and the alkali solution effectively treats the thermal runaway flue gas.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Water treatment apparatus, method for washing biological membrane in water treatment apparatus, and method for evaluating thickness of biological membrane in water treatment apparatus

A water treatment apparatus 10 is provided with: a treatment vessel 11 into which a solution of interest S is fed; a hollow fiber membrane 12 which is immersed in the solution of interest S in the treatment vessel 11 and has gas permeability; and a biological membrane 30 which is formed on the outer surface of the hollow fiber membrane 12 and utilizes oxygen-containing air fed into the hollow fiber membrane 12. In the water treatment apparatus 10, the solution of interest S is treated with the biological membrane 30. The water treatment apparatus 10 is also provided with a gas-diffusing tube 13 which is located below the hollow fiber membrane 12 and ejects a washing gas to wash the biological membrane 30; and an oxygen concentration meter 14 which measures the oxygen concentration in discharged air that has passed through the hollow fiber membrane 12. In the gas-diffusing tube 13, the strength of washing of the biological membrane 30 is controlled on the basis of an oxygen concentration measured by the oxygen concentration meter 14.
Owner:KUBOTA CORP

Engine, fuel gas inlet structure thereof and vehicle

The utility model provides an engine and its gas inlet structure and vehicle, the engine gas inlet structure of the utility model comprises an ejector and a gas guide cover which are arranged on the engine, the gas guide cover is sleeved outside the nozzle of the ejector, a gas guide channel is formed between the gas guide cover and the nozzle, and the gas guide cover is provided with a plurality of gas guide holes. The air guide channels communicate with a combustion chamber of the engine through the air guide holes, and the multiple air guide holes are non-evenly arranged around the axis of the ejector. According to the gas inlet structure of the engine, the gas guide cover covers the nozzle of the ejector, and the gas guide holes which are non-uniformly arranged around the axis of the ejector are formed in the gas guide cover, so that the gas flow in the ejector can be guided to be ejected into the cylinder at a more proper angle, and the formation of combustible mixed gas is facilitated; the heat efficiency of the engine can be improved, and the emission amount of nitric oxide is reduced.
Owner:GREAT WALL MOTOR CO LTD

Thermal runaway flue gas treatment device and energy storage equipment

The invention provides a thermal runaway flue gas treatment device and energy storage equipment, and mainly solves the problem of potential safety hazards caused by thermal runaway of an existing lithium battery. A liquid treatment tank of the thermal runaway flue gas treatment device is connected with a liquid inlet pipeline, the liquid inlet pipeline is used for introducing external water into the liquid treatment tank, and solid alkali in the liquid treatment tank is dissolved by water to form an alkali solution. When the battery works normally, only solid alkali is placed in the liquid treatment tank, the requirement of the solid alkali on the material of the liquid treatment tank is not high, so that the manufacturing cost of the device is relatively low, meanwhile, only solid alkali is placed in the liquid treatment tank, the weight of the whole liquid treatment tank is small, and the liquid treatment tank is very convenient to mount and dismount. When the thermal runaway of the battery occurs, the liquid inlet pipeline introduces external water into the liquid treatment tank to form an alkali solution, and the alkali solution effectively treats the thermal runaway flue gas.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Plastic bottle processing mold and preparation method for producing plastic bottle by using same

The invention relates to a plastic bottle processing mold and a preparation method for producing a plastic bottle by using the mold, and relates to the technical field of mold equipment. The plastic bottle processing mold comprises a fixed mold body and a movable mold body, cavities are formed in the fixed mold body and the movable mold body respectively, a protruding part is arranged in each cavity, the ends, away from the corresponding cavities, of the two protruding parts abut against each other, and air containing grooves are formed in the ends, close to each other, of the two protruding parts respectively. A material containing groove is formed in the inner wall, away from the other protruding part, of each gas containing groove. Compared with the prior art, the mold has the following beneficial effects that gas between the two protruding parts can be reserved in the gas containing groove after the fixed mold and the movable mold are closed, so that the gas amount on the outer edges of the protruding parts after mold closing is reduced, a parison material between the plastic bottle handle and the main body can be clamped into the material containing groove by the protruding parts, and bubbles in the material containing groove are prevented from falling off. And blank waste can be removed together, and the bubble amount at the handle after forming is reduced.
Owner:GREIF PLASTIC PACKAGING (KUNSHAN) CO LTD

Defoamers and their defoaming method in petrochemical industry

The application belongs to the technical field of defoaming agent preparation, and more particularly relates to a defoaming agent and a defoaming method thereof in petrochemical industry. The defoaming agent is a silicone oil defoaming agent, which comprises the following raw materials in parts by weight: 100-120 parts of dimethyl silicone oil, 6-9 parts of silica sol, 3-4 parts of chitosan, and 10-12 parts of emulsifier. The dimethyl silicone oil is first treated by allyl glycidyl ether and then grafted with tyrosine with an isoelectric point of 5.66. The silica sol is first treated by ammonia water and then surface-modified by hexamethyldisilazane. The pH of the defoaming agent is 7.0. The product obtained by the application has the advantages of high defoaming efficiency and short defoaming time.
Owner:JIANGSU TAIHU CHEM

Thermal runaway flue gas treatment device

The utility model provides a thermal runaway flue gas treatment device which is used for effectively treating thermal runaway flue gas so as to solve the problem of potential safety hazards caused by the fact that the thermal runaway flue gas is discharged out of a battery shell. The thermal runaway flue gas treatment device comprises at least one treatment tank body, and a flue gas inlet and a flue gas outlet are formed in the treatment tank body; the treatment tank body is filled with 0.05-0.5 mol / L of aqueous alkali and is used for treating thermal runaway flue gas generated by thermal runaway of the battery. The alkaline solution with the concentration not only can fully treat electrolyte carried in the thermal runaway flue gas, but also can treat part of gas in the thermal runaway flue gas, the gas amount of the thermal runaway flue gas treated by the alkaline solution with the concentration is greatly reduced, and the thermal runaway flue gas treatment efficiency is improved. Therefore, the problem of potential safety hazards caused by the fact that thermal runaway smoke is discharged out of the battery shell is solved.
Owner:D AUS ENERGY STORAGE TECH (XIAN) CO LTD

Positive electrode material, electrochemical apparatus, and electronic apparatus

This application provides a positive electrode material, including a lithium transition metal oxide. As tested by X-ray diffractometry, a full width at half maximum FWHM(101) of a (101) crystal plane diffraction peak and a full width at half maximum FWHM(104) of a (104) crystal plane diffraction peak of the positive electrode material satisfy: FWHM(101) / FWHM(104) ≤ 0.7. This application further provides an electrochemical device and an electronic device that includes the positive electrode material. The positive electrode material is of excellent structural stability under high temperature and high voltage, and is of excellent kinetic performance under high-rate charging and discharging conditions.
Owner:NINGDE AMPEREX TECHNOLOGY LTD

Post-treatment device for ship tail gas

InactiveCN119113747ADesulfurization achievedTo achieve the effect of denitrificationDispersed particle separationElectric machineDrive motor
The invention discloses a post-treatment device for ship tail gas, and belongs to the technical field of ship tail gas treatment.The post-treatment device comprises a gas inlet box, the two sides of the gas inlet box communicate with a gas inlet pipe and a gas outlet pipe correspondingly, a piston plate is installed in the gas inlet box in a sliding and sealing mode, and a controller, a driving motor and two water pumps are fixedly installed at the top of the gas inlet box; the driving motor is used for driving the water pump to operate, and the rear side of the air inlet box is fixedly connected with a rotating motor. The desulfurizing tower is used for desulfurizing the tail gas; the desulfurizing tower is used for desulfurizing tail gas, the denitration tower is used for realizing denitration of the tail gas, spraying mechanisms and stirring mechanisms are arranged in the desulfurizing tower and the denitration tower, and a communicating pipe is communicated between the desulfurizing tower and the denitration tower. The content of pollutants in treated tail gas is monitored through the arranged sensor, and the dosage of the treatment solution and the gas inlet speed of the treatment device are automatically adjusted according to the monitoring result, so that it is guaranteed that the pollutants in the tail gas are thoroughly purified, and meanwhile resource waste is avoided.
Owner:NANTONG RUNHANG SHIP MASCH MFG CO LTD

Methods for low-temperature air separation and applicable distillation column systems

This invention discloses a method for cryogenic air separation and a suitable distillation column system. A high-pressure column and a low-pressure column are arranged side-by-side, with a first condenser-evaporator located at the bottom of the low-pressure column and a second condenser-evaporator located at the top. Oxygen-enriched stream from the bottom of the high-pressure column is fed into the low-pressure column for further distillation. The high-pressure liquid nitrogen generated by the first condenser-evaporator is depressurized and separated into gas and liquid phases in a gas-liquid separator. The liquid phase is then combined with the low-pressure liquid nitrogen generated by the second condenser-evaporator, pressurized by a liquid nitrogen pump, and fed into the high-pressure column as reflux liquid. The gaseous product in the gas-liquid separator is combined with the flash gas at the outlet of the liquid nitrogen pump and returned to the low-pressure column.
Owner:LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE

Insulating tube body and fuse for fuse

The present application provides an insulating tube body and a fuse for a fuse, wherein the insulating tube body is provided with a first penetration cavity, and the penetration cavity is used to place the fuse of the fuse; at least one second penetration cavity is provided on the tube wall of the insulating tube body, and the at least one second penetration cavity is connected with the first penetration cavity, and the volume of the at least one second penetration cavity is smaller than the first penetration cavity; at least one second penetration cavity is filled with an arc extinguishing layer, and the arc extinguishing layer is composed of an arc extinguishing material; when the fuse begins to melt, the arc extinguishing material in the target penetration cavity is decomposed by heat, and arc extinguishing gas is generated and blown from the connection port between the target penetration cavity and the first penetration cavity to the melt in the first penetration cavity, wherein the target penetration cavity is one of the at least one second penetration cavity. In this way, a small amount of arc extinguishing material is used to pressurize and blow the melt at the melting part, so that the amount of gas generated is reduced while achieving rapid arc extinguishing, and the total pressure in the tube body is reduced, which can improve the explosion-proof ability and breaking ability of the fuse.
Owner:GUANGDONG SINOBILE ENERGY TECH CO LTD

Sand blasting equipment capable of conveniently adjusting air pressure

The utility model discloses sand blasting equipment capable of conveniently adjusting air pressure. The sand blasting equipment comprises a box body, an equipment cabin is fixed at the top of the box body, an operation room is arranged in the box body, an air compressor is arranged in the equipment cabin, an air outlet pipe of the air compressor is connected with a pressure adjusting valve, the pressure adjusting valve is arranged on one side in the equipment cabin, and an outlet of the pressure adjusting valve is connected with an air spraying pipe. Air flow pressure in the air spraying pipe can be detected through the pressure gauges, data are fed back and displayed on the first pressure gauge, a user can regulate and control the air flow pressure in the pipeline according to the monitored data, high-speed air flow flowing into the pressure regulating valve can be regulated by rotating the pressure regulating knob, and therefore the air flow speed and pressure are further changed, and the user can conveniently use the pressure regulating valve. And the air pressure value in the operation room is monitored in real time through the air pressure detection element, a user regulates and controls the fan to operate according to the monitored value, the air amount in the operation room is reduced, the air pressure is reduced, and the sand blasting work can continue to be normally carried out.
Owner:KOMICO EQUIP PARTS SHENZHEN CO LTD

Automatic ammonia water dispensing device

The utility model relates to the technical field of ammonia water preparation, discloses an automatic ammonia water dispensing device, and solves the problems that in the ammonia water preparation process, part of ammonia water is volatilized into ammonia gas, so that the demand quantity of the prepared ammonia water is increased, and resources are wasted. The outer side of the rotating pipe is fixedly sleeved with an annular rack, one side of the annular rack is meshed with a gear, a motor is installed on the gear, a rotating rod is slidably arranged in the rotating pipe, a pressurizing block is rotatably installed on the rotating rod, the motor is started, the gear drives the annular rack to rotate, and the rotating rod is driven by the rotating pipe to rotate and move downwards at the same time. The pressurizing block moves downwards, the volume of gas on the lower side of the pressurizing block is reduced, the pressure of gas in the dispensing tank is increased, and ammonia gas can be more inclined to be dissolved in water to form ammonia water instead of being volatilized into air by increasing the pressure, so that the volatilization of the ammonia gas in the preparation of the ammonia water is reduced, and the waste of resources is avoided.
Owner:BAOTOU XINHENGFENG ENERGY CO LTD

Acetylene cooling device

The utility model belongs to the technical field of acetylene production, and particularly relates to an acetylene cooling device which comprises a cooling outer box body, a plurality of cooling boxes are fixedly connected in the cooling outer box body, and an inner cavity of the cooling outer box body is divided into a plurality of cooling bins through the cooling boxes. An acetylene cooling cylinder is mounted in the cooling bin, cooling liquid for cooling is poured into the cooling bin, and an inner protective wall cylinder is fixedly connected to the inner side of the acetylene cooling cylinder; acetylene gas is injected into the acetylene cooling cylinder, the contact between the acetylene gas and the air can be avoided in a manner of cooling by using a surrounding low-temperature environment, the trouble of gas extraction when the acetylene gas is discharged after being cooled subsequently is reduced, and meanwhile, the problem that in a water spraying method, the gas extraction efficiency is high can be reduced. The amount of acetylene gas discharged when other gas is discharged can be reduced, and meanwhile consumption of acetylene caused by dissolving in water in the water spraying process can be avoided.
Owner:XIXIA COUNTY SHENHUO IND GAS CO LTD