108results about How to "Achieve safe use" patented technology

A shell low-pressure rotary compressor and a control type and application for refrigerant and oil return of the compressor comprise a compression component and a motor component arranged in the shell. The compression component comprises one and more cylinders, pistons arranged in the cylinders, sliding pieces arranged in sliding piece trough of the cylinder, an eccentric crankshaft driving the piston and an upper bearing and a lower bearing supporting the eccentric crankshaft; the motor component comprises a motor rotor, and a motor stator; the shell is provided with a refrigerant diffluence device which is arranged on top or side surface of the shell; the refrigerant diffluence device comprises a diffluence pipe which is internally provided with a spring pipe which adjusts the diffluence rate. An air suction muffler is arranged between the motor component and the compression component; a radial spacing is arranged between the air suction muffler and a main bearing, and/or the motor rotor or the eccentric crankshaft or the upper bearing which is provided with a round plate. The invention has the advantages of high safety degree, low manufacture cost, smart operation, good lubrication performance, little oil consumption, high compression efficiency, and long service life.

The invention discloses a remote programmable logic controller (PLC) automatic control system for a light-emitting diode (LED) display screen. The remote PLC automatic control system comprises a PLC control module, a display screen control module, a power distribution cabinet, a PLC, a power supply module, a state monitoring module and an LED display screen, wherein the PLC and the power supply module are integrated in the power distribution cabinet; the PLC control module is used for sending instructions for starting and monitoring the LED display screen to the PLC; the PLC is used for controlling the power supply module to supply power to the LED display screen, controlling the state monitoring module to monitor state data of the LED display screen and transmitting the state data acquired by the state monitoring module to the PLC control module; and the display screen control module is connected with the PLC control module and is used for displaying an alarm and taking correspondingemergency measures when the state data of the LED display screen are abnormal. By the remote control system, the LED display screen can be remotely monitored and controlled conveniently without in-site control of personnel, and the display screen can be safely used.

The invention discloses a kitchen fuel gas alarm detection device, and the device comprises a gas collection module, an A/D converter module, a temperature collection module, an infrared detection module, a remote control module, a liquid crystal display module, a sound-light alarm module, a wireless communication module, a central controller, and a power supply. A collection output end of the gas collection module is connected with the central controller through the A/D converter module. The temperature collection module, the infrared detection module, the remote control module, the liquid crystal display module, the sound-light alarm module and the wireless communication module are respectively connected with the central controller. The invention also discloses an alarm detection method of the device. According to the invention, the device detects the concentration of fuel gas in a kitchen environment in real time, starts an alarm lamp and a buzzer to give an alarm if the concentration exceeds a set threshold value, and transmits information to a target cellphone terminal for real-time prompt, thereby achieving the real-time detection of the leakage of fuel gas in the kitchen, and eliminating the potential safety hazards.

The invention relates to a method for enhancing heavy metal stabilization process in the urban sludge anaerobic digestion process. Municipal sludge serves as raw materials, a special vacuum reacting furnace is adopted, sludge biochar is prepared high-temperature pyrolysis under the anoxic condition, SBC is modified through glass fiber wetting, and finally the sludge biochar of a stable structure, with high voidage and resistant to acid and alkali impact is obtained; in the sludge anaerobic digestion acid production stage, the sludge is added to a reactor according to a proper proportion, free state heavy metal in the reactor can be absorbed and captured obviously, and finally the stabilizing process of the sludge heavy metal is accelerated and enhanced. The method basically cannot generate adverse influences on a sludge anaerobic digestion reaction system, the generated biogas residue is obviously lowered in the water content, and the dewaterability is obviously improved. The method can be used for remaining sludge anaerobic digestion engineering of sewage treatment plants in cities and towns, the heavy metal stabilization process in the anaerobic digestion process is effectively enhanced, the sludge stabilization process is accelerated, and the method has great significance for lowering the risk of heavy metal environmental pollution and improving the soil health quality in the utilization process of sludge lands generated after anaerobic digestion is conducted.

The invention discloses a compound fertilizer capable of reducing cadmium lead content of vegetables in a slightly contaminated vegetable field and a preparation method thereof. The compound fertilizer is prepared from urea, ammonium chloride, ammonium nitrate, diammonium phosphate, a nitric phosphate potassium fertilizer, a calcium magnesium phosphate fertilizer, potassium chloride, sepiolite, kaolin, bentonite and power plant slag in a ratio. The preparation method for the compound fertilizer comprises the following steps of: A, preparing the sepiolite; B, preparing the kaolin; C, preparing the bentonite; D, preparing the power plant slag; and E, mixing the raw materials prepared in the steps A, B, C and D with the urea, the ammonium chloride, the ammonium nitrate, the diammonium phosphate, the nitric phosphate potassium fertilizer, the calcium magnesium phosphate fertilizer and the potassium chloride in the ratio, and performing production processing to prepare the compound fertilizer. The compound fertilizer is mainly characterized by comprising 36.5 to 43.5 percent of passivator which can effectively reduce active state cadmium lead content of soil and cadmium lead content of the vegetables, and 30 percent of nutrients of nitrogen, phosphorus and potassium, so that the active state cadmium and lead contents of the soil in the slightly contaminated vegetable field are reduced by 41.3 to 52.3 percent and 36.0 to 58.5 percent respectively, the cadmium content and the lead content of vegetable products are reduced by 30.1 to 52.8 percent and 27.9 to 51.0 percent respectively, and the compound fertilizer is suitable to be popularized and applied to many heavy metal contaminated areas.

The invention relates to an organic insecticide enveloping fertilizer and a manufacturing technique. An agricultural insecticide and an envelope agent are coated on the surface of granular compound fertilizer, and a sealing agent is coated on the outermost layer of the granular compound fertilizer. The manufacturing technique comprises the steps of: utilizing the granular fertilizer of the compound fertilizer of a finished product as the basis, mixing the agricultural insecticides such as acetamiprid and the like and the enveloping agent, utilizing an insecticidal-mechanical mist sprayer to spray mist on the outer layer of the granular compound fertilizer; and then adding a sealing agent according to a certain proportion so as to obtain the organic insecticide enveloping fertilizer. The organic insecticide enveloping fertilizer is an insecticidal-fertilizer product which uses agricultural insecticides to envelope the granular compound fertilizer. In the invention, the Insecticidal function of the compound fertilizer is added, and the defects that the technology of a compound fertilizer product only has a nutrition function of the fertilizer, and is not beneficial to realizing synchronous conduction of fertilizer applying and insecticide applying are overcome. In the invention, the fertilizer and the insecticide are combined, the nutrition of crops and disease prevention and insect control are integrated, so that the dual-effect function of applying fertilizer and controlling the insect is achieved. Simultaneously, in the invention, the safety and the environmental protection of the use of the insecticidal fertilizer are improved, the lasting performance and the application of the fertilizer and the insecticide are increased and the functionality and the energy-saving performance of productive labor are improved.

The invention relates to a diffused gas utilizing system and method. The diffused gas utilizing system comprises a chemical-looping combustion reactor. The chemical-looping combustion reactor is filled with metal oxygen carriers. Diffused gas is fed into the chemical-looping combustion reactor and reacts on the oxygen carriers. The oxygen carriers are mainly composed of Fe-based oxygen carriers, and Cu-based carriers are added according to a certain proportion. The flowing direction of the diffused gas and the flowing direction of air in the chemical-looping combustion reactor are made opposite through switching of a valve, so that the problem that the diffused gas cannot be used easily due to the facts that the potential safety hazards are large and the diffused gas is exhausted intermittently is solved, and accordingly safe, clean and efficient utilization of the diffused gas is achieved.

The invention relates to an anti-quantum computing smart home cloud storage method and system based on a key card. The smart home system comprises smart home components and security cloud. Each smarthome component is provided with a key card. An anti-quantum computing public key is combined with an asymmetric key pool in a key card to extract the public key of each smart home component. A real random number encrypted file in the own key card and a true random number are encrypted and uploaded to the security cloud. Each smart home component is equipped with a key card in order to ensure the security in key storage and use of all components. At the same time, only files encrypted by quantum random numbers and encrypted keys are stored in the security cloud, thereby solving the problem thata user worries about the data cloud. Each smart home component extracts the public keys of required smart home components by combining an anti-quantum computing public key with the asymmetric key pool, thereby effectively lowering the risk that a quantum computer acquires a corresponding public key rapidly through a public key.

The invention provides a composition for conditioning cadmium-polluted selenium-rich soil, and a use method and an application thereof. The composition comprises biomass carbon, bentonite and a calcium magnesium phosphate fertilizer. The biomass carbon produced from agricultural wastes ramulus mori, bentonite and the calcium magnesium phosphate fertilizer are used to effectively control the activity of cadmium in the soil, reduce the content of cadmium in rice and produce natural selenium-rich rice according with national standards. The composition has the advantages of low preparation cost and environmental protection, and can be practically applied to the remediation and the regulation of the cadmium-polluted selenium-rich soil.

The invention discloses a safe utilization method for cadmium and arsenic combined pollution rice fields. The method includes the following steps: S1, applying 100-300 kg/mu of a weakly alkaline soilconditioner 5-10 days before rice is sowed or transplanted; S2, spraying a leaf surface resistance-control agent containing silicon and selenium on the rice for one time at the peak tillering stage ofthe rice; S3, at the late tillering stage and filling stage of the rice, performing moistening irrigation so as to make fields have no stagnant water; and S4, spraying the leaf surface resistance-control agent containing the silicon and the selenium on the rice for one time at the late booting stage of the rice, wherein the soil conditioner consists of, by mass percentage, 18-28% of water slag powder, 25-35% of biochar, 15-25% of organic fertilizer and 25-35% of bentonite. The provided method for governing cadmium and arsenic combined pollution rice fields is low in cost and high in efficiency; and cadmium and arsenic content in the rice can be greatly reduced, substances used during treatment have no harm to human bodies, so that the method is safe and environment-friendly.

The embodiment of the invention relates to the technical field of electronics, and discloses a server, a power supply application method and a control device. In the embodiment of the invention, the power supply application method comprises the following steps: detecting the number of power supplies of a working power supply in a system and reading a system power value; if it is detected that thenumber of the working power supplies is at least two, and an abnormal trigger signal is received from the logic trigger module, obtaining an early warning power value according to a plurality of system power values; and if the early warning power value is greater than or equal to the power supply power value of the working power supply, outputting an abnormal processing signal to a control modulein the server through the logic trigger module, so that the control module reduces the processor power to a preset value and limits the system power to be within the maximum power of the working powersupply. According to the embodiment of the invention, under the condition that the system has a redundant power supply function, the cost is saved, the power supply utilization rate and the conversion efficiency are improved, the condition that the system oscillates can be avoided, and the purpose of safe use is achieved.

The invention provides an atomic layer deposition process control method for corrosive and hazardous gaseous precursors. Precise control and safe ordered injection of the gaseous precursors are realized. A gaseous precursor capacity adjustable device is additionally arranged between two precursor injection pneumatic valves, the injection amount of the precursors is accurately controlled, and a precursor injection pneumatic valve, a vacuum pump air exhaust pneumatic valve and a carrier gas purging pneumatic valve are opened and closed in order through valves, so that atomic layer deposition processes such as alternate and ordered injection and quasi-static diffusion adsorption reaction and removal of excessive precursors and reaction products are realized respectively. The atomic layer deposition process control method can realize the accurate control of the amount of the corrosion and dangerous gaseous precursors in the atomic layer deposition process, reduce the use potential safety hazard of the precursors, and reduce the environmental pressure and the use cost.

The invention discloses a recycling device for backwash water of an activated carbon filter and a recycling method. The recycling device comprises a flocculant feeding tank, a backwash water collecting tank, an ultra-filtration membrane tank, an ozone generator and a clean water tank, wherein a backwash water inlet, a flocculant feeding port and a collecting tank water outlet are formed on the backwash water collecting tank; an ultra-filtration membrane component is arranged in the ultra-filtration membrane tank; an ultra-filtration membrane water outlet and an ultra-filtration membrane backwash water inlet are formed at the top of the ultra-filtration membrane component; the ultra-filtration membrane water outlet is connected with a water inlet of the clean water tank; a backwash water outlet is formed on the clean water tank; the backwash water outlet is connected with the ultra-filtration membrane backwash water inlet through a backwash pump; and an ozone aeration plate is arranged in the ultra-filtration membrane tank. The recycling device disclosed by the invention is capable of filtering out the microorganism, organic matter and particle matter in the backwash water of the activated carbon filter, realizing the safety utilization of the backwash water of the activated carbon filter, increasing the water-saving efficiency of water plant and efficiently restraining the ultra-filtration membrane pollution under the condition of low drug consumption.

The invention discloses an Adaboost-based mobile intelligent terminal security level classification method. The method comprises the following steps of S1 testing the mobile intelligent terminal accessed by N + P station on the edge computing platform; 2 preprocessing each test result to obtain a test result vector and a safety level; 3 integrating that preprocessing results to obtain a data set T, and dividing the data set T into a training set and a test set; S4 according to the safety grade K, adopting the K-1 layer Adaboost algorithm model to train the training set, generating a strong classifier and verifying the accuracy through the test sets; S5 Testing the newly connected mobile intelligent terminal, and passing the test result through the strong classifier to obtain the security level of the mobile intelligent terminal. According to the test results of each single safety performance of the mobile intelligent terminal, the invention adopts the Adaboost algorithm to realize theaccurate division of the safety level of the mobile intelligent terminal on the edge computing platform, which is favorable for realizing the safe use of different safety level requirements.

The invention discloses a track deformation control structure arranged in a shield tunnel with a bottom corridor, and belongs to the correlation technical field of shield tunnel. According to the raildeformation control structure arranged in the shield tunnel with the bottom corridor, a middle box culvert can drive a field cast road face plate, a carriageway plate, a track plate and other mechanisms in the event of earthquake to not completely lateral swinging with a tunnel structure due to the fact that the middle box culvert with a rectangular section is longitudinally arranged at the bottom of the shield tunnel, a supporting platform, an arc-shaped plate, a partition plate and a sliding cushion layer are arranged correspondingly, and the large radius curve deformation of the track is realized and the normal operation of a train in the shield tunnel is achieved when the earthquake occurs. The track deformation control structure has simple structure and low setting costs, the normaloperation of the track structure in the shield tunnel with the bottom corridor is ensured under earthquake action, the safety and stability of the shield tunnel operation are improved, the possible damage of a track structure and a tunnel structure during earthquake is reduced, the safe operation of the shield tunnel is ensured, and a great value for popularization and application is achieved.

The invention discloses a track distribution type electromagnetic induction charging device for an underground tunnel. The track distribution type electromagnetic induction charging device comprises a plurality of protection circuits, a plurality of primary inductors, a secondary inductor, a rectification filter circuit and a charging management circuit, wherein an input end of each protection circuit is the input end of an alternating current power supply; the primary inductors and the secondary inductor are connected in an electromagnetic induction mode; an output end of the charging management circuit is a charging output end; a plurality of primary inductors are fixedly connected with a track in the underground tunnel respectively and arranged in sequence; and the secondary inductor, the rectification filter circuit and the charging management circuit are arranged in a vehicle to be charged. The invention also discloses a charging method. The charging method comprises the following steps of: acquiring a charging start signal; starting charging; performing constant-current charging; starting performing constant-current charging when the voltage of a battery is more than 14.4 V; and finishing charging when charging current is less than 0.05 A. By the invention, non-contact high-efficiency charging is realized, and an explosion safety accident caused by contacting charging sparks in the tunnel is avoided.

The present invention discloses one kind of automatic door assembly for numberically controlled machine tool. The automatic door assembly includes one door sheet unit, one driving unit and one interlock unit. The driving unit has one motor, one shaft coupling and one driving wheel; and the interlock unit has one driven wheel, one flexible element set between the driving wheel and the driven wheel and one interlock part fixed to the door sheet unit and interlinking with the belt unit. The driving unit drives the door sheet unit through the flexible element, and the resistance to the door sheet unit may be returned through the belt unit for the shaft coupling to be separated from the motor and the motor to rotate idly, so as to reach use safety.

The embodiment of the invention provides a method, a device and a system for controlling the safe use of a machine-to-machine (M2M) terminal. The method comprises the following steps of: acquiring the current location information of the M2M terminal; and if the location information is inconsistent with legal location information, transmitting a notification message to a network side. In the method, the device and the system for controlling the safe use of the M2M terminal, the M2M terminal acquires own current location information, compares the location information with the legal location information, detects own illegal service condition if the location information is inconsistent with the legal location information, and transmits the notification message to the network side to notify the network side that the M2M terminal is under the illegal service condition, so the safe use of the M2M terminal is realized.

The invention discloses a distribution box automatic moisture-proof control system; a first collecting unit is used for collecting an environment temperature T0 around the distribution box; a second collecting unit is used for collecting an internal temperature T of the distribution box; a timing unit is in communication connection with a control unit; the control unit obtains time information through the timing unit; a ventilation unit is in communication connection with the control unit for ventilating the internal of the distribution box according to an instruction of the control unit; the control unit is in communication connection with the first collecting unit and the second collecting unit; the control unit obtains the environment temperature T0 around the distribution box through the first collecting unit, obtains the internal temperature T of the distribution box through the second collecting unit, compares T0 with T, and controls an action of the ventilation unit according to the comparison result and an time information instruction.