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43results about How to "Make sure full" patented technology

Additive metering system and metering method of cement concrete stirring device

InactiveCN101659087AOvercoming the Defects of Inaccurate Weighing and Measurement ResultsGuaranteed accuracyLiquid ingredients supply apparatusAutomatic controlControl system
The invention discloses an additive metering system and a metering method of a cement concrete stirring device, the additive metering system comprises an additive liquid storage tank, a ball valve, anadditive pump, a check valve, a flow sensor, a weighing sensor, an additive weighing tank, a support of the weighing tank and a discharge pneumatic butterfly valve, and a control system is constituted by a flowmeter, a weighing instrument and a computer. The additive metering adopts the method which combines the volumetric metering with the electronic weighing metering, the two metering results are simultaneously inputted into the computer for carrying out comparison, when any metering result achieves the set value of ingredients within the set error range, the additive pump is closed. The metering method adopts the method which combines the volumetric metering with the electronic weighing metering, when the pneumatic butterfly valve below the weighing tank is not closed tightly or otherfaults occur in the system, the computer carries out the comparison treatment on output values of the volumetric metering and the electronic weighing metering, thereby automatically controlling the opening and the closing of the additive pump and further ensuring the precision of the actual amount of the ingredients of the additive.
Owner:中外合资江苏华通动力重工有限公司

Terminal capable of accurately obtaining battery voltage in charging process and battery voltage obtaining method

The invention discloses a terminal capable of accurately obtaining battery voltage in the charging process and a battery voltage obtaining method. The device comprises a charging port, a battery, a resistor and a power management module. The first end of the power management module is connected with the charging port. The second end and the third end of the power management module are connected with one end of the resistor and a system module of the mobile terminal. The fourth end of the power management module is connected with the other end of the resistor and an anode of the battery. The power management module is used for setting the initial charging cut-off voltage, obtaining the voltage difference at the two ends of the resistor when the battery is charged, and determining the voltage value of the battery according to the voltage difference. When the battery is charged, the actual voltage of the battery can be accurately obtained, then the real electric quantity of the battery is obtained and displayed to users, the users can know the electric quantity of the battery, and when the terminal is charged, whether the battery is fully charged can be accurately known, so that charging of the battery is stable and accurate.
Owner:威海高新园区运营管理有限公司

Air micro-nano particles-filtering and purifying device

The invention discloses an air micro-nano particles-filtering and purifying device. The device comprises an upper cover, a housing body, a filtration device arranged in the housing body, an air blower, a rotating air-outlet device and a base, wherein the housing body adopts a cylindrical form; the upper cover is arranged at the upper part of the housing body; an air inlet zone is arranged at the lower part of the housing body; the filtration device is arranged inside the housing body; a purification chamber is arranged inside the filtration device; the base is arranged at the bottom of the purification chamber; the air blower is arranged on the inner side of the purification chamber; a groove is formed in the lower surface of the base; a foldable handle is arranged inside the groove; the foldable handle is fixedly connected with the rotating air-outlet device arranged above the upper cover through a rotating shaft on the air blower. The device is simple and compact in structure and easy to operate and can effectively remove the pollutants in air; the device is low in power consumption and saves electric energy; with high purification efficiency, the device can realize air purification without using various catalysts, so as to significantly reduce production cost; the device is wide in application range.
Owner:ZHONGSHAN JINCHENG PLASTIC PROD CO LTD

Mine dust removing apparatus and mine dust removing method

The present invention discloses a mine dust removing apparatus and a mine dust removing method. The mine dust removing apparatus comprises a mineral conveying unit and a water vapor atomizing unit, wherein the mineral conveying unit comprises a high position conveyor, a first sealing soft curtain, a breaking inlet rolling channel, a breaking device, a mineral outlet, a connection rolling channel, a second sealing soft curtain and a low position conveyor, the high position conveyor, the first sealing soft curtain, the breaking inlet rolling channel, the breaking device, the mineral outlet, the connection rolling channel, the second sealing soft curtain and the low position conveyor are sequentially connected, the water vapor atomizing unit comprises a pressure gas source, a pressure water source, a spraying controller and four gas-water atomizing nozzles, one end of the spraying controller is connected to the pressure gas source and the pressure water source, the other end is connected to the four gas-water atomizing nozzles through a pressure gas pipeline and a pressure water pipeline, the two gas-water atomizing nozzles are arranged on the upper end of the breaking inlet rolling channel, the spraying direction is along the mineral conveying direction, the other two gas-water atomizing nozzles are arranged on the lower end of the connection rolling channel, and the spraying direction is opposite to the mineral conveying direction. With the apparatus and the method of the present invention, the problems of not strong practicality and easy secondary pollution formation of the existing dust removing apparatus and the existing dust removing method can be effectively solved, and advantages of simpleness, reliability, environmental pollution avoiding and the like are provided.
Owner:HUAZHONG UNIV OF SCI & TECH

Isobaric formation method for lithium ion battery

The invention relates to the field of lithium ion battery manufacturing, in particular to an isobaric formation method for a lithium ion battery. The method comprises the following steps that (1) thebattery to be formed is placed into a formation box, inert gas is introduced for 15 minutes, a sealing plug is pulled out, a liquid storage tank is additionally arranged above a liquid injection portof the battery and is open; (2) an inert gas inlet valve is closed, vacuumizing is carried out to reach -0.075 MPa to -0.09 MPa, a vacuum valve is closed, and heating is carried out to increase the temperature in the box to 20-35 DEG C; (3) the formation step is set and started; and (4) after formation is finished, the inert gas is introduced, and the liquid injection port of the battery is plugged with the sealing plug. According to the method, an isobaric formation technology is adopted, so that the sucking-back amount of electrolyte in the formation process can be decreased, in addition, gas generated in a battery cell in the formation process can be removed in time, the periphery of the battery cell is fully filled with the electrolyte, polarization caused by the concentration difference of lithium ions is reduced, so that a thin and dense SEI film is formed on the surface of a negative electrode, the direct current internal resistance and the alternating current internal resistance of the battery are reduced, the discharge capacity is improved, and therefore the capacity per gramme of the battery is improved.
Owner:HEFEI HENGNENG NEW ENERGY TECH

Device and method for charging USB

The invention relates to a USB charging device arranged in an electric device for charging rechargeable batteries of the electric device. The USB charging device comprises a charging circuit chip, a battery interface unit which is connected with the charging circuit chip, a voltage detector and a control chip. The charging circuit chip is internally provided with charging circuits of different charging modes for selecting charging circuits according to charging commands so as to switch the charging modes. A positive pole end of the battery interface unit is connected with the charging circuit chip, and a negative pole end is grounded. A positive pole and a negative pole of the charging battery are respectively arranged in the battery interface unit corresponding to the positive pole end and the negative pole end of the battery interface unit. The voltage detector is used for detecting the battery voltage in the battery interface unit and feeding back the battery voltage information to the control chip. The control chip is used for sending a corresponding charging command according to the battery voltage information of the voltage detector so s to switch charging modes and simultaneously sending out power-on and power-off commands to the electric device by matching with corresponding charging modes.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Water supply pipeline pressure test process

The invention discloses a water supply pipeline pressure test process. The process comprises the steps of pressure test preparation, pipeline pressure test water injection, pipeline pressurization, standing observation and pressure test device dismounting. The pipeline assembly has the beneficial effects that the pressure gauges are installed on the main water pipe, the branch water pipes and the branch water pipes correspondingly so that the pressure values of all the pipelines of the whole pipeline assembly can be monitored, the accuracy of the monitored pressure values can be ensured, connecting pieces used for being connected with the pressure gauges do not need to be additionally installed on the pipelines, and rapid construction and installation are facilitated; the exhaust valve is installed at the water outlet end of the branch water pipe with the highest horizontal height, the stop valve is installed at the position of a pipe opening connected with the exhaust valve, air in the pipeline assembly can be exhausted in the water injection process, meanwhile, when water flows out of the exhaust valve, it is indicated that the pipeline assembly is filled with water, and then the branch water pipe can be plugged through the stop valve. And water injection cleaning is carried out on the pipeline assembly after pressure testing, and it is ensured that residual objects in the pipeline are cleaned up so that the pipeline can be delivered to a user for use.
Owner:中铁建设集团机电安装有限公司 +1

Construction method for performing pressure grouting in interlayer space between A layer concrete and CV bottom head of reactor building foundation of nuclear island

A construction method for performing pressure grouting in an interlayer space mainly comprises the following steps of: treating the foundation course; distributing grouting pipes, a water absorption pipe and a liquid level monitor lead of a liquid level monitor: placing a grouting-region overhead space and taking a space between the overhead space and the foundation course as a grouting region; connecting each grouting pipe with a slurry making system; humidifying foundation course; lubricating the grouting pipes; grouting, and the like. The construction method for performing pressure grouting in the interlayer space is characterized in that the pipe lubrication operation is performed on the grouting pipes by means of a pipe lubricating material before the grouting, and a wet sliding layer is formed in the grouting pipes by means of a fine material in the pipe lubricating material, thereby reducing the flow resistance of grouting liquid in the grouting pipes, preventing the grouting material separation and the grouting pipe blockage and guaranteeing the smooth grouting operation; the pressure grouting is employed to ensure that the space of the whole grouting region is full of a grouting material; the liquid level monitor is matched with the grouting pipes and controls the grouting pipes to be located under the grouting liquid level all the time, so that the grouting pipes are controlled to accurately move to a specified grouting site; and therefore, the grouting quality is ensured and the grouting efficiency is improved.
Owner:CHINA NUCLEAR IND 22ND CONSTR

A stacked roll double-connected two-dimensional piston dynamic flowmeter

The invention discloses a stacking and rolling double-connected two-dimensional piston type dynamic flowmeter. The left housing is provided with a liquid inlet, the right housing is provided with a liquid outlet, the left housing is provided with a left metering unit, and the right housing is provided with a liquid inlet. There is a right metering unit in the body, and the left housing is fed and drained through the left metering unit, and the right housing is fed and drained through the right metering unit; the left metering unit includes a left piston, and the right metering unit includes a right metering unit. The piston, the left piston and the right piston are connected through a stacked roller transmission that allows the left piston and the right piston to keep synchronous rotation and relatively independent axial movement; the left piston is connected to a left speed sensor for detecting the axial speed of the left piston Assemblies, the right piston is connected with the right speed sensor assembly for detecting the axial speed of the right piston; the central processing unit calculates the flow rate according to the left speed signal and the right speed signal; the present invention uses the speed sensor to measure the flow rate, and the output signal and the flow rate The signal is directly proportional, with high linearity and high response frequency.
Owner:ZHEJIANG UNIV OF TECH

Efficient low-resistance air filter material preparation device

The invention discloses an efficient low-resistance air filter material preparation device. The efficient low-resistance air filter material preparation device is characterized by comprising a fiber extrusion device, filament jetting devices, a web curtain receiving device, a bias voltage electrostatic charging device and a winding device. The bias voltage electrostatic charging device is used for enabling charge particles generated by a charging electrode to be quickly injected into a material under the effect of a high-voltage electric field generated by a bias voltage electrode. Meanwhile, due to existing of the bias voltage electrode, the utilization efficiency of the charge particles is improved, and the injection depth of charges is improved. A plurality of sets of filament jetting devices and the bias voltage electrostatic charging device are used, so that the inside of a thick material can also receive effective charge injection, and it is ensured that the entire space of the material and the surface of fiber are filled with charges. The bias voltage electrostatic charging device is placed on the rear portion of the movement party of the falling point of a filament jetting die opening, so that charges are quickly injected into the fiber when the fiber is not completely solidified, the fiber is subjected to the effect of the bias voltage electric field at the same time, part of electrons inside the fiber are made to move and be solidified, and the fiber is made to have polarity.
Owner:JIANGSU LIYANG NEW MATERIALS CO LTD

Terminal and method for accurately obtaining battery voltage by discharging during charging

The invention discloses a terminal and method of precisely acquiring battery voltage by discharging during charging. The terminal comprises a charge interface, a battery, a resistor, a power management module and a central processing unit. The power management module is used for notifying the central processing unit to set zero initial discharge current when detecting battery charging, acquiring a voltage difference of ends of the resistor, and judging whether or not current flows by the resistor according to the voltage difference; when no current flows by the resistor, the power management module directly acquires voltage of a battery; when current flows by the resistor, the power management module notifies the central processing unit to amplify the discharge current before acquiring the voltage difference of the ends of the resistor and judging whether or not the current flows by the resistor, and only when no current flows by the resistor, the power management module acquires the voltage of the battery. The terminal and the method have the advantages that no flow is enabled to flow by the internal resistor of the battery by means of discharging during battery charging, actual voltage of the battery can be obtained accurately, and true electric quantity of the battery can be obtained and displayed to users.
Owner:威海神舟信息技术研究院有限公司

Construction method for performing pressure grouting in interlayer space

A construction method for performing pressure grouting in an interlayer space mainly comprises the following steps of: treating the foundation course; distributing grouting pipes, a water absorption pipe and a liquid level monitor lead of a liquid level monitor: placing a grouting-region overhead space and taking a space between the overhead space and the foundation course as a grouting region; connecting each grouting pipe with a slurry making system; humidifying foundation course; lubricating the grouting pipes; grouting, and the like. The construction method for performing pressure grouting in the interlayer space is characterized in that the pipe lubrication operation is performed on the grouting pipes by means of a pipe lubricating material before the grouting, and a wet sliding layer is formed in the grouting pipes by means of a fine material in the pipe lubricating material, thereby reducing the flow resistance of grouting liquid in the grouting pipes, preventing the grouting material separation and the grouting pipe blockage and guaranteeing the smooth grouting operation; the pressure grouting is employed to ensure that the space of the whole grouting region is full of a grouting material; the liquid level monitor is matched with the grouting pipes and controls the grouting pipes to be located under the grouting liquid level all the time, so that the grouting pipes are controlled to accurately move to a specified grouting site; and therefore, the grouting quality is ensured and the grouting efficiency is improved.
Owner:CHINA NUCLEAR IND 22ND CONSTR
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