192results about How to "Prevent passage" patented technology

The invention relates to a functional resin tectorial membrane proppant and a preparation method thereof, and belongs to the technical field of oil-gas field development. The functional resin tectorial membrane proppant comprises aggregate and a resin film coated on the aggregate. Said resin film comprises organic silicon compounds of one or more active groups of amino, hydroxyl, carboxyl, alkoxyl and hydrosulphonyl. The side chain of the organic silicon compound is a hydrophobic group. The cured resin film has different wetting qualities for oil and water. The functional resin tectorial membrane proppant of the invention has a function of allowing the smooth permeation of oil gas and preventing water from penetrating through the proppant. Such a function improves the separation effect ofoil gas and water and reduces the oil production cost. The excellent hydrophobicity of the resin film facilitates the proppant to have excellent water resisting property and improves the crushing resistance of the proppant, so that the stream guidance effect is good for a long time.

The invention discloses an isolated rapid turn-off metal oxide field effect transistor (MOFET) driving circuit, which comprises a totem-pole output circuit, a transformer T, a negative voltage generation circuit and an MOSFET, wherein an output point of the totem-pole output circuit is connected with the primary dotted terminal of the transformer T through the anode of a blocking capacitor C1; the secondary dotted terminal of the transformer T is sequentially connected in series with a secondary capacitor C2, a diode D4, an electrolytic capacitor C3, a resistor R1 and the MOSFET, and then is connected to the secondary unlike terminal of the transformer T; a voltage stabilizing diode D3 is connected to the two ends of the secondary side of the transformer T; the base of a triode Tr3 is connected with the anode of the secondary capacitor C2, the collector of the triode Tr3 is connected with the cathode of the diode D4, and the emitter of the triode Tr3 is connected with the secondary unlike terminal of the transformer T; a diode D6 is reversely connected in parallel with the two ends of the gate input resistor R1; a voltage stabilizing diode D5 is connected in parallel with the two ends of the electrolytic capacitor C3; and a resistor R2 is connected between the gate and source of the MOSFET. The circuit is applied to places with high requirements on the anti-interference capability of the driving circuit and on rapid turn-off and with large duty ratio variation ranges.

The invention relates to an inorganic composite microporous membrane serving as a lithium ion battery diaphragm and a preparation method of the inorganic composite microporous membrane. The inorganic composite microporous membrane is a co-extruded inorganic composite microporous membrane, and includes an intermediate layer and two outer layers, wherein the intermediate layer is mainly made of polyethylene, or the copolymer of ethylene and other olefins, or the mixture of polyethylene and other polyolefin; the two outer layers is mainly made of the mixture of polypropylene and inorganic nanoparticles; and the inorganic nanoparticles are selected from at least one of aluminum oxide, magnesium oxide, calcium oxide and silicon oxide. The inorganic composite microporous membrane provided by the invention has good unity, and can prevent shedding of the inorganic nanoparticles so as to ensure the stability of the battery performance during application of the inorganic composite microporous membrane. The preparation method provided by the invention can form the multilayer structure of the inorganic composite microporous membrane in one step by adopting co-extrusion method, thereby simplifying the production process, improving the production efficiency and improving the performance of the inorganic composite microporous membrane.

The invention discloses an exterior wall coating material capable of finishing working through one-time painting.The exterior wall coating material is prepared from natural resin, polyvinyl acetate emulsion, deionized water, quartz powder, zinc oxide, sulfonated hyperbranched polypyrrolone modified graphene oxide, polybenzimidazole modified meso-porous silicon, KH-560 and inorganic pigment.The exterior wall coating material capable of finishing working through one-time painting has the better adhesive capacity, aging resistance, covering power, washing resistance, scratching resistance, stain resistance, self-cleaning performance, fastness, acid resistance and alkali resistance, longer service life and the like compared with existing water-based exterior wall coating materials.

The invention discloses an intrinsically safe type sample gas processing system. The sample gas processing system comprises a sample gas acquiring device and a sample gas processing device, wherein the sample gas acquiring device comprises a detachable sampling probe and a pneumatic sampling pump; the sample gas processing device comprises a water cooling dewatering device, a self-cleaning type sample gas filter and an infiltrated sample gas drier; and the detachable sampling probe, the water cooling dewatering device, the self-cleaning type sample gas filter, the infiltrated sample gas drier and the pneumatic sampling pump are connected in sequence. The sample gas processing system has the advantages of easy maintenance, simple structure, low cost, reasonable configuration, and good safety.

The invention proposes a silicon negative electrode lithium ion battery non-aqueous electrolyte, a lithium ion battery negative electrode and a lithium ion battery comprising the negative electrode. The non-aqueous electrolyte comprises a lithium salt, a non-aqueous solvent and a film formation additive, wherein the film formation additive is silane having a structure shown in a formula (1), the formula (1) is shown in specification, M is chained alkyl-Cn<1>H<2n1+1>, and R1, R2 and R3 are same and are one of -C1, -F, chained alkoxy-C<n2>H<2n2+1>O and amino-H<2>N(CH<2>)<n3>; or the M is chained amino-H<2>N(CH<2>)<n1'>, the R1, the R2 and the R3 are same and are one of -C1, -F and chained alkoxy-C<n2>H<2n2+1>O, 1<=n1<=20, 3<=n1'<=20, 1<=n2<=4, and 2<=n3<=15. By adding the silane film formation additive with the structure into the electrolyte, the problem of film breakage due to a volume expansion effect of the silicon negative electrode in an existing lithium ion battery is solved.

The invention discloses a dura-mater biological patch and a preparation method thereof. The dura-mater biological patch adopts a process of using small intestinal submucosa tissues as materials and systemically removing immunogenic substances. The preparation method comprises the following steps of: using alcohol to treat and remove lipids, using trypsin and alkali solution to treat and remove cells, using DNA enzyme to treat and remove DNA, and using alpha-galactosidase to treat and remove alpha-Gal antigens and the like. The dura-mater biological patch and the preparation method disclosed by the invention have the advantages that not only can the immunogenic substances be effectively removed, but also the normal structure of extracellular matrix can not be damaged; and when the dura-mater biological patch is clinically applied in repairing dura-mater defects, the leakage of cerebrospinal fluid can be effectively prevented, the tissue can be guided for ingrowth, the tissue growing speed is matched with the patch decomposing speed, the immunological rejection is low and the biocompatibility is good.

The invention relates to a degerming and anti-overflowing filter of a medical vacuum extractor, which is composed of two coaxial flap-type casings that are clasped with each other and degerming filter paper encapsulated in the casings, wherein the outsides of the two flap-type casings are respectively provided with an inlet pipe and an air outlet pipe in a coaxial manner. The innovative points of the invention are as follows: an anti-overflow filter element is installed radially and coaxially at one side of the two flap-type casing close to the outlet pipe, and the degerming filter paper is installed on the air inlet surface of the anti-overflow filter element. The invention has scientific and reasonable design, simple structure, good degerming and anti-overflow functions, can perform further safety and security effects on the normal use of the vacuum extractor, and can prolong service life of the vacuum extractor; and simultaneously, the degerming and anti-overflowing filter is an accessory product of the vacuum extractor which is in disposable use, when the degerming and anti-overflowing filter is polluted by liquid, only another degerming and anti-overflowing filter needs to be replaced, therefore, the degerming and anti-overflowing filter is convenient to use and satisfies the high-standard requirement of sanitation, safety and convenience of medical equipment.

The invention discloses a highway overweight governance method and system, and relates to the technical field of highway overweight governance. The overweight governance system comprises a weighing device, a position tracking device and a transmitting device, wherein the weighing device is arranged at a ramp at the entrance of a highway; the position tracking device is used for tracking the real-time position of an overweighted vehicle until the overweighted vehicle runs into a preset overweight governance area; if the position tracking device acquires the information that the overweighted vehicle runs into an entrance through lane, the transmitting device can transmit an overweight signal to a blocking device in the entrance through lane, then the overweighted vehicle can be prevented from running into the highway. The vehicle can be weighed before running into the highway from the entrance of the highway, so that vehicles which are to run into the highway at the entrance can be managed and controlled, vehicles which are not overweighted can be released, and the overweighted vehicles can be prevented from passing through the entrance, the situation that the pavement of the highway is damaged by the overweighted vehicles can be effectively avoided, and the potential safety hazard caused by the situation that the overweighted vehicles run on the highway can be also avoided.

The invention relates to a frequency and speed modulating multi-ring oil mill, comprising a mill and an oil mill body, a gear box and an electric control box which are arranged on the mill; wherein, the gear box is connected with an electric motor through a belt; the oil mill body comprises the barrel part and a multi-grade worm part, and the barrel part sequentially consists of four passages of a feed opening passage, a first-grade milling shell passage, a second-grade milling shell passage and a tap hole passage; a feed hopper is arranged at an upper part of the feed opening passage; the milling shells of the first-grade milling shell passage and the second-grade milling shell passage are internally provided with an integral collecting bar, multi-sheet oil ring combination, a first-grade pressure ring, multi-sheet oil ring combination and a second-grade pressure ring; the tap hole passage comprises a tap hole part communicated with the barrel; a separate bush-type heating plate is sleeved at the external part of a retainer ring. The oil mill is high in rate of oil, light in structure, economical in energy, smooth in operation, low in noise and long in service life and is quite suitable for application at the large areas of countries.

The invention relates to insert earphones and anti-radiation insert earphones, which comprise an earphone head and a sleeve (1), a tone cavity (2), a sound wave transmission channel (3), a micro loudspeaker shell (4), a micro loudspeaker (5), a microphone (6), a microphone shell (7), a conducting wire (8) and a plug (9), wherein the channel is arranged between the tone cavity and the micro loudspeaker, the channel is made of insulating materials, the micro loudspeaker is separated from or integrated with the microphone and comprises the micro loudspeaker shell, wherein the micro loudspeaker is located on one end of the micro loudspeaker shell, the earphone head and the sleeve are located on the other end of the shell, the middle part is the sound wave transmission channel, the micro loudspeaker, the microphone, the conducting wire and the plug are connected in turn, the conducting wire uses a shielding shielded wire, which is characterized in that the length of the channel is 155-600mm, the volume of the tone cavity is 600-3000mm3, a small hole is arranged on an outlet of the tone cavity, which enables the tone cavity to form a small sound box with the diameter of 1.5-4mm, and the insert earphones are suitable for using on communication equipment with strong radial line such as mobile phones.

The invention belongs to the technical field of environment protection, and concretely relates to a sludge low-temperature drying treatment system, which comprises a heat pump system, an air circulation system, a sludge drying chamber, a spraying system, a filter and a surface air cooler. The heat pump system comprises an evaporator, a condenser, a compressor and an expansion valve; the evaporator is connected with the condenser through the compressor and the expansion valve; the condenser is connected with the sludge drying chamber through the air circulation system; the sludge drying chamber is connected with the spraying system; the spraying system is connected with the filter; the filter is connected with the surface air cooler; the surface air cooler is connected with the condenser. The sludge low-temperature drying treatment system provided by the invention is small in occupied area, high in equipment integration degree, low in energy consumption and free of secondary pollution during a treatment process.

The invention relates to an external rotor waterproof motor which not only can effectively prevent water from entering between a stator and a rotor, but also can discharge water which enters between the stator and the rotor from a drainage hole in case and a waterproof method. The external rotor waterproof motor comprises an external rotor motor, wherein, the end surface of the end closure wall of the motor is groove structure; an end surface that the rotor is matched with a motor end closure is lug boss structure and is in concavo-convex matching with the groove of the end surface of the end closure wall of the motor; and a limit ring is arranged between the rotor and the motor end closure. The invention has the advantages that the motor not only can ensure that positive air pressure can be generated between the rotor and the motor end closure to prevent water from entering between the rotor and the stator under dynamic state, but also can effectively block pass of rainwater to prevent rainwater from entering between the stator and the rotor as the concavo-convex sealing match of the motor also can form a plurality of water stop lines under static state, thereby achieving the effect of water stop with high reliability.

The blocking-off process for high water seepage layer includes injecting dispersion fluid-I into stratum, injecting dispersion fluid-II, keeping well in close state for 5-7 days and injecting steam chemically. The dispersion fluid-I is compounded with waste well drilling polymer sludge and lignosulfonate in 0.1-5 wt% as sludge diluent. The dispersion fluid-II is compounded with waste oil field sludge in 30-50 wt%, waste water in 49-69 wt% and OP-type surfactant as dispersant in 0.3-1 wt%. The present invention can block active side and bottom water in oil deposit area effectively in monoway without blocking hot exploitation steam injecting channel. The present invention has relatively low cost, and is suitable for exploit dense oil thermally.

The invention provides a file information leak-proof method, medium and equipment based on Hash algorithm. The method comprises the following steps: intercepting a to-be-detected file in a data transmission process, computing a to-be-detected fuzzy hash value of the to-be-detected file, computing the similarity of a sample fuzzy hash value and the to-be-detected fuzzy hash value according to the pre-computed sample fuzzy hash value of a sample file, and judging whether the to-be-detected file is leaked according to the similarity, and then timely detecting the leaked file in the data transmission process; if the file is leaked, preventing the to-be-detected file from passing, thereby preventing the important file information from leaking, and protecting the important information.

The present invention concerns a burner assembly that includes a burner body having a combustible gas chamber from which a combustible gas is distributed to a plurality of burner ports at which the combustible gas can be combusted and a stability chamber in gas-flow communication with the combustible gas chamber for maintaining the combustion of the combustible gas in the stability chamber whenever the combustion of the combustible gas at the plurality of burner ports is disturbed, whereby the combustion of the combustible gas at the plurality of the burner ports may be resumed upon the cessation of the disturbance. The burner assembly can also include a burner cap for closing off the top of the burner body so as to substantially preclude the escape of the combustible gas from the combustible gas chamber, the stability gas chamber and the burner ports at the top of the burner body.

The invention belongs to the field of in-vitro diagnosis and particularly relates to a quantum dot immunochromatographic strip for synchronously quantifying multiple tumor markers and a method of the quantum dot immunochromatographic strip. The quantum dot immunochromatographic strip is characterized in that a marking pad (3) is coated with a mixture of various tumor marker antibodies marked corresponding to quantum dots with different wavelengths, a belt T (4) of an analyzing membrane (7) is coated with a mixture of various tumor marker antibodies, and a belt C (5) of the analyzing membrane (7) is coated with secondary antibodies; a standard curve of each tested object is stored in an electronic tag manner and the electronic tags are mounted on the immunochromatographic strip. According to the quantum dot immunochromatographic strip, a detection instrument having a signal detection function is utilized for reading standard curve data stored in the electronic tags and synchronously and quantitatively detecting concentrations of the various tumor markers in a to-be-detected sample by combining the corresponding fluorescence intensity of the to-be-detected sample measured by the detection instrument.

A medicament container and a method of manufacturing the container housing at least one individual dose of medicament using a carrier having first and second opposing faces and through walls defining a through hole extending between the first and second opposing faces, the method including inserting the carrier into a mould having an element for protrusion into the through hole from the first face so as to define with the through walls a generally cup-shaped space, filling the generally cup-shaped space with a mould material so as to form a generally cup-shaped insert in the through hole, removing the carrier and insert from the mould, depositing an individual dose of medicament in the generally cup-shaped insert, and sealing the medicament and insert in the through hole by sealing first and second sheets respectively with the first and second faces.

The invention belongs to the field of in-vitro diagnosis and particularly relates to a quantum dot marking test strip and method for synchronously and quantitatively detecting multiple indices of cardiac markers. A marking pad (3) of the test strip is coated by a mixture of all cardiac marker antibodies correspondingly marked by quantum dots with different wavelengths; a zone T (4) of an analysis membrane (7) is coated by a mixture of all cardiac marker antibodies; and a zone C (5) of the analysis membrane (7) is coated by a second antibody. The standard curve of each detected matter is stored by using an electronic tag and is mounted on the test strip. According to the test strip, the standard curve data stored by the electronic tag is read by a detector with a signal detection function, and the concentrations of all the cardiac markers in a sample are synchronously and quantitatively detected by combining fluorescence intensity corresponding to a to-be-detected sample detected by the detector.

The invention relates to a copper-based catalyst for synthesis of methanol in a slurry bed. The catalyst is characterized in that it is composed of active component CuO, ZnO and a carrier. Specifically, the catalyst consists of 30.0-70.0wt% of CuO, 10.0-50.0wt% of ZnO, and 5.0-20.0wt% of the carrier. The catalyst provided in the invention has the advantages of high activity, good stability and long life.

The invention provides lateral chromatographic test paper for chemical detection. The test paper is assembled according to a lateral chromatographic structure based on a reaction sequence of the chemical detection. The test paper comprises a detection reaction condition preparation area, a detection color development area and a water absorption area which are successively arranged on a bottom plate, wherein the detection reaction condition preparation area is qualitative filter paper, quantitative filter paper, glass cellulose membrane, water absorption paper or polyester cellulose membrane test paper loaded with a reaction reagent, and the detection color development area is qualitative filter paper, quantitative filter paper, glass cellulose membrane, water absorption paper or polyester cellulose membrane. The test paper is uniform in color development, capable of solving the problem in the existing detection method that various reaction reagents cannot coexist on a piece of paper and breaking the limitation of the chemical detection test paper, and is more reliable in detection result.

One kind of compressor uses the radiator, the refrigerator, the refrigerator compressor to use the radiator. Its characteristic is: It including the vacuum heat transfer in, outside the barrel, in the barrel lays aside the compressor in the vacuum heat transfer, the compressor and in the vacuum heat transfer between the barrel space fills the heat transfer medium, in the vacuum heat transfer the barrel and the assistance vacuum trades the heat pipe to connect, trades in the heat pipe in the assistance vacuum to establish causes heat transfer medium cooling to turn over to the position the porous body and the replacement elastomer, in the vacuum heat transfer the barrel sets outside the vacuum heat transfer in the barrel, in the vacuum heat transfer the barrel, the auxiliary vacuum trades the heat pipe and outside the vacuum heat transfer the barrel heat of formation radiates the circuit. The heat transfer medium for synthesizes the wax. Replacement elastomer for spring or elastic oak colloid. The barrel gets hooked in the vacuum heat transfer sets at certain radiator fins. Has the heat transfer effect well, the compressor does not have the noise, the service life is long and so on the merit.

The invention discloses a super-hydrophobic ultralow-density high-strength polystyrene microsphere. The microsphere is prepared from the following raw materials in parts by weight: 0.025 to 15 parts of a dispersing agent, 10 to 20 parts of styrene, 0.5 to 3 parts of divinyl benzene, 0.5 to 10 parts of silane, 0.1 to 0.6 part of an initiator, 50 to 300 parts of deionized water and a proper amount of a pH regulator. Meanwhile, the invention also discloses a preparation method of the super-hydrophobic ultralow-density high-strength polystyrene microsphere. The preparation method comprises the following steps: preparing a water phase and an oil phase, carrying out mixing, adjusting a pH value, conducting heating, and carrying out suction filtration and washing. According to the super-hydrophobic ultralow-density high-strength polystyrene microsphere and the preparation method thereof in the invention, silane containing double bonds is introduced into a free radical polymerization system ofstyrene and divinyl benzene, silane hydrolysis is induced in the process of suspension free radical polymerization reaction, and the polystyrene microsphere with the surface having strong hydrophobicability is obtained. Moreover, through process regulation and control of the method disclosed by the invention, the super-hydrophobic polystyrene microsphere with high compressive strength and high yield is obtained under the condition of extremely low consumption of the crosslinking agent divinyl benzene.

The invention discloses a production process of oil-water separation filter paper, which comprises the steps of adding water resistance agents into paper pulp or soaking and coating water dispersing liquid of the water resistance agents on the surface of paper, and then drying the paper. The water resistance agents are preferably oxalaldehyde crosslinking type azoic compounds. The water resistance agents can be fixedly attached onto paper fiber for increasing the contact angle of water on the paper surface so that the water pouring effect like rolling water beads on lotus leaves can be generated on the paper surface, the water passing can be effectively inhibited for a long time, and the oil-water separation effect can be reached.

The invention discloses suspension salt well completion fluid, which is a suspension prepared from the following raw materials in percentage by weight: 20 to 82 percent of sodium chloride, 0.5 to 3.0 percent of thickening agent A, 3.0 to 4.5 percent of thickening agent B, 0.10 to 3.0 percent of salt re-crystallization inhibitor, 0.5 to 2.0 percent of corrosion inhibitor, 1.0 to 3.0 percent of fluid loss additive, 0.1 to 1.5 percent of oil layer protecting agent and the balance of water. The suspension salt well completion fluid has the advantages of low damage to a stratum, wide specific gravity adjusting range, high viscosity and low cost.

The invention provides an electric rice cooker capable of automatically separating rice soup and relates to the field of household appliances. The electric rice cooker capable of automatically separating rice soup comprises an inner container and a housing, wherein the inner container is an container with an opening in the upper part; a water discharging hole is formed in the bottom of the inner container and is connected with a discharging pipe; the discharging pipe is arranged outside the inner container; a control valve is arranged on the discharging pipe; the water discharging hole is connected with a filter; the filter is arranged inside the inner container and is used for passing of the rice soup and preventing rice grains from passing; the inner container is arranged in the housing; a soup outlet is formed in the housing; the discharging pipe is communicated with the soup outlet. The electric rice cooker capable of automatically separating rice soup can be used for solving the technical problems that the rice soup is not thoroughly separated and the operation is complex in the prior art.

The invention discloses a device for storing and cyclically recovering chlorsilane and a process for cyclically recovering the chlorsilane. The device for storing the chlorsilane comprises a chlorsilane storing tank and a condenser, wherein a chlorsilane gas pipeline and a chlorsilane condensate liquid backflow pipe are arranged between the chlorsilane storing tank and the condenser, a pneumatic switch valve is arranged on the chlorsilane gas pipeline, a buffer tank, a filter and a pneumatic regulating valve are additionally arranged between the chlorsilane condensate liquid backflow pipe anda chlorsilane condensate liquid pipe of the condenser, a gas return pipe is also arranged between the top of the buffer tank and a gas phase inlet of the condenser, the outlet part of the chlorsilanecondensation pipe is provided with a signal receiver, and the signal receiver is in signal connection with the pneumatic switch valve and the pneumatic regulating valve through a controller. The device and the process have the advantages that through closing the pneumatic regulating valve and blocking the filter, leaked cooling circulation water can be effectively prevented from entering the chlorsilane storing tank and from reacting with chlorsilane, and the occurrence of serious safety accidents is prevented.

The invention discloses a culvert water level warning device. The device comprises a sensor, wherein the sensor is mounted in a culvert, and the sensor is used for always detecting a water level in the culvert to be used as input signals to be sent to a railing control circuit; when the water level in the culvert is detected by the sensor to reach a danger value, a motor is controlled by the railing control circuit to drive an automatic railing to be automatically put down, and pedestrians and vehicles are forbidden to pass. For the culvert water level warning device disclosed by the invention, when the water level in the culvert reaches the danger value, the automatic railing can be automatically controlled to be put down, so that the pedestrians and the vehicles are forbidden to pass, and the ultimate goal of the water level warning device is achieved.

The invention discloses a self-closing oil gun capable of realizing oil vapor recovery. The self-closing oil gun comprises a gun body, a gun barrel, a main valve, a vacuum valve assembly and a handle. An oil product channel is formed in the gun body, the main valve and the vacuum valve assembly are installed in the oil product channel, a gear engaging mechanism which can realize oil gun non-pressure self-closing by inducting the oil product pressure through a pressure inducting valve assembly is further installed in the oil product channel, the inner side of the gun barrel is provided with an inducting vapor faucet and an vapor suction pipe, a direction inducting valve assembly is installed between the vapor suction pipe and the vacuum valve assembly, a vapor return channel is further formed in the gun body and an oil vapor recovery pipe with the inner diameter larger than the outer diameter of the gun barrel is installed outside the gun barrel in a sleeved mode. The self-closing oil gun capable of realizing oil vapor recovery integrates the functions such as directional self-closing, inducting self-closing, oil vapor recovery, leakage prevention and single-hand operation, and has the advantages of being simple to operate, safe and reliable in performance, long in service life and suitable for wide popularization and application.