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77results about How to "No leakage problems" patented technology

Information transmission method, traffic control unit and on-board unit

The embodiments of the invention provide a method for transmitting road information, a traffic control unit (TCU) and an on-board unit (OBU). The method includes the following steps: a TCU acquires aplanned path of a vehicle; the TCU extends the planned path to generate an available driving area of the vehicle on the planned path, wherein the available driving area includes a safety driving areaof the vehicle; and the TCU sends road information to an OBU, wherein the road information includes instruction information of the available driving area. According to the embodiments of the invention, the TCU sends the available driving area to replace a high-precision map. As the data volume of the available driving area is small, the data can be transmitted at high speed and with high security,and the problem of high-precision map leakage is avoided.
Owner:HUAWEI TECH CO LTD

Micro-fluidic chip for chemiluminescence detection, and using method and reagent cleaning method thereof

The invention provides a micro-fluidic chip for chemiluminescence detection, and a using method and a reagent cleaning method thereof, and belongs to the field of biochemical testing devices. The micro-fluidic chip comprises a substrate and a cover plate which form a sealing environment and are used for a micro-fluid to flow, the substrate is covered with the cover plate, and the substrate comprises: a sample adding hole and a diluted solution adding hole at the first layer; a sample quantification groove, a sample overflow groove, a diluted solution quantification groove and a dilution overflow groove at the second layer; an incubation groove at the third layer, solution storage grooves at the fourth layer, a detection groove at the fifth layer and a waste liquid groove at the sixth layer, wherein the sample quantification groove is communicated with the incubation groove, the diluted solution quantification groove is communicated with the incubation groove, the incubation groove is communicated with the detection groove, and the detection groove is communicated with the waste liquid groove through a hydrophobic flow channel. The separation, mixing and detection of a liquid is realized without repeatedly adding a sample, and the whole process is automatically completed, so the efficiency is increased, and the cost is realized; and the cleaning of a reaction reagent is realized, so the working efficiency is increased.
Owner:天津诺迈科技有限公司

Plate split mounting type road surface manufactured by utilizing waste plastics

The invention discloses a plate split mounting type road surface manufactured by utilizing waste plastics. The left sides and the right sides of road surface plates are provided with bulges and grooves in various shapes so that every two adjacent road surface plates can be inserted together in a bearing mode, drilling holes allowing steel strands to penetrate through are formed in the upper sidesand the lower sides of the road surface plates, the compactness and the stability of the road surface can be ensured when the steel strands are connected together. A plurality of grooves are formed inthe sides, close to the roadbed, of the road surface plates, and can be used by cooperating with the plate split mounting type roadbed, and a more stable effect can be achieved by inserting the bulges on a roadbed block into the grooves in the road surface plates; and the road surface plates can further be manufactured to be hollow so that various cables and pipelines can be placed conveniently.In addition, in order to conveniently place the pipelines, the road surface plates with the open lower portions further can be manufactured, and grooves can be additionally formed in the position, incontact with the roadbed, of the bottom face so as to improve the stability.
Owner:SHANDONG UNIV

Preparation method of low-cost quasi solid electrolyte for dye sensitized solar cell

The invention discloses a preparation method of a low-cost quasi-solid electrolyte for a dye sensitized solar cell. The preparation method includes the following steps that: (1) a deep eutectic solvent is prepared: a hydrogen bond donor and a hydrogen bond acceptor are mixed uniformly and are dried, so that the deep eutectic solvent can be obtained, wherein the hydrogen bond donor is urea or glycerol, and the hydrogen bond acceptor is choline chloride or choline bromide; and (2) the quasi solid state electrolyte is prepared: agarose is added into N-methyl pyrrolidone at first, and an obtained mixture is stirred evenly, and then, I2 and LiI are added into the mixture, and a newly-obtained mixture is stirred evenly, and finally, the deep eutectic solvent is added into the mixture, and the deep eutectic solvent and the mixture are mixed evenly, so that the quasi-solid electrolyte can be obtained. The quasi-solid electrolyte obtained through adopting the preparation method has high ionic conductivity and stability. The deep eutectic solvent adopted by the preparation method of the invention is low in cost and easy to synthetise, and has high ionic conductivity. When the quasi-solid electrolyte is applied to an optoelectronic device, the optoelectronic device can maintain excellent photoelectric performance and high photoelectric conversion efficiency.
Owner:CENT SOUTH UNIV

One-way conduction fluid sensor

The invention belongs to the technical field of sensors and relates to a one-way conduction fluid sensor. The one-way conduction fluid sensor is characterized in that a valve seat is arranged on the inner wall of one end of a housing with a fluid channel; a valve element inlaid with a magnet block and being capable of controlling positive conduction and reverse blocking is arranged on the valve seat; a limiting rod is arranged at the tail part of the valve element; the tail end of the limiting rod points to the other end of the housing; a limiting spring seat with a fluid through hole is arranged on the inner wall of the other end of the housing; one side of a reset spring is connected to the limiting rod in a sleeving manner; the other side of the reset spring is propped against and connected to the limiting spring seat; a magnetic switch which is turned on or off by virtue of magnetic force of the magnet block when the valve element is opened or closed is arranged on the outer wall of the housing. The one-way conduction fluid sensor has the advantages as follows: the structure is simple, the manufacture cost is low, the fluid resistance is small, the leakproofness is good, the service life is long, the using performance is stable and the sensor is applicable to high voltage or ultrahigh pressure and capable of controlling fluid flowing unidirectionally.
Owner:因而克智能科技(浙江)有限公司

Control mechanism for seal water valve and seal water valve

PendingCN107631045ARealize precise flow control functionExtended service lifeSlide valveValve housingsWater flowFastener
The invention discloses a control mechanism for a seal water valve and the seal water valve. The control mechanism for the seal water valve comprises a stator blade mechanism fixedly sealed and covered on a water inlet or a water outlet of a valve inner cavity of the seal water valve and used for forming a fixed circulation channel, a rotor plate mechanism used for forming a movable circulation channel and fit to and rotatably matched with the stator blade mechanism so as to control a water flow amount, and a fastening piece used for sealing an assembly port of a sealed and covered valve bodyand compressing and fitting the rotor plate mechanism onto the stator blade mechanism along an axial direction so as to form axial fastening and positioning. Compression-fit seal between the fasteningpiece and the rotor plate mechanism and compression-fit seal between the rotor plate mechanism and the stator blade mechanism form a double-layer dynamic seal structure. The whole structure is simple, seal links are less, all dynamic seal contacting a water flow adopts binding faces with mirror surface brightness levels for compression-fit seal, and the leakage problem brought by the wear duringa rotation process can be effectively avoided, so that the service life of the whole seal water valve is prolonged.
Owner:XINHUA XINYUAN ELECTRONICS CERAMICS CO LTD

Dry-wet forming method and device for an artificial stone

The invention discloses a dry-wet forming method for an artificial stone. The dry-wet forming method comprises the following steps: I, preparing a forming cavity, wherein the upper end of the forming cavity is open, and a rubber layer covers the inner bottom surface of the forming cavity; II, pouring cement paste into the forming cavity; II, pouring dry hard concrete into the forming cavity in the step II; and IV, pressing materials: performing downward extrusion forming on semi-finished products in the forming cavity in the step III by adopting a pressure plate; and V, de-molding and maintaining, thereby obtaining the artificial stone made of the cement paste and the dry hard concrete. Compared with the prior art, the artificial stone, which has a dry hard concrete surface on one side and a cement paste surface on the other side, can be formed, so that the problems that manufacturing efficiency is low due to long reuse time of a forming mould totally manufactured by cement paste in a wet-process forming method and the decorative effect is poor due to the fact that artificial stone, which is totally manufactured by the dry hard concrete, is rough in surface in a dry-process forming method are solved. The invention further discloses a dry-wet forming device for the artificial stone.
Owner:QUANZHOU HONGYI BUILDING MATERIAL MACHINERY

Garnet type solid-state composite electrolyte, preparation method and application

The invention relates to a garnet type solid-state composite electrolyte, a preparation method and application, and belongs to the technical field of lithium battery electrolyte materials. The composite electrolyte is composed of a lithium salt, an ionic liquid and an LLZO-system garnet-type oxide electrolyte. The garnet-type oxide electrolyte is used as a solid skeleton, and the ionic liquid electrolyte formed by mixing the lithium salt and the ionic liquid is uniformly attached to the surface of the solid skeleton to form a cross-linked network structure. The preparation method comprises thefollowing steps: completely dissolving a lithium salt into ionic liquid under a near-anhydrous and oxygen-free condition to obtain an ionic liquid electrolyte; and adding the garnet type oxide electrolyte, and carrying out ball milling and uniform mixing to obtain the composite electrolyte. The composite electrolyte has good thermal stability, good interfacial compatibility with an electrode, relatively low interfacial impedance and excellent electrochemical performance. The preparation method is simple and easy to operate, raw materials are easy to obtain, safe and pollution-free, conventional equipment is used, and the method is suitable for large-scale production.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Concrete impermeable wall

ActiveCN109113024AAdapt to temperature change requirementsNo leakage problemsBarrages/weirsInsulation layerReinforced concrete
The invention relates to a concrete impermeable wall. According to the technical scheme, the concrete impermeable wall comprises a concrete wall body, water swelling rubber plates and a top protectionrubber sleeve; a water insulation layer composed of the multiple water swelling rubber plates is arranged outside the concrete wall body, the top protection rubber sleeve is arranged on the top of the concrete wall body, the lower portion of the section of the concrete wall body is of a trapezoid structure, the upper portion of the section of the concrete wall body is of a cuboid structure, and the water swelling rubber plates are of structures gradually thinned from the bottom to the top. The concrete impermeable wall has the beneficial effects that reinforced concrete is used as a foundation, the water swelling rubber plates are used for seepage and moisture prevention, the top protection rubber sleeve is used for top protection of the concrete wall body, and the aim of protecting the reinforced concrete is achieved; a reinforcing steel bar bundling frame structure of the reinforced concrete are in rigid connection with water swelling rubber plate embedded connecting parts, protection and foundation connection are integrated, construction is simplified, and the service life of a concrete dam is greatly prolonged.
Owner:李敬文

3D printed curved surface conformal antenna liquid-cooling cold plate structure

The invention discloses a 3D printed curved surface conformal antenna liquid cooling cold plate structure, and aims to provide a liquid cooling cold plate with high curved surface conformal heat dissipation efficiency and high integral forming quality. According to the technical scheme, the center line of an inner flow channel is located on a halving curved surface in the thickness direction of acold plate base body; a liquid inlet and a liquid outlet communicate with each other along a liquid inlet flow channel and a liquid outlet flow channel correspondingly; the inner flow channel with a conical structure is formed at the termination end of the liquid inlet flow channel and the termination end of the liquid outlet flow channel; the cross section structure of a cold plate flow channel is designed into an oval main flow channel and a plurality of round micro flow channels by combining the overall structure characteristics of the cold plate and utilizing three-dimensional software; and selective laser melting 3D printing powder bed equipment is adopted, laser power is set to be 200-400 W, a laser scanning speed is set to be 1-5 m/s, high-energy laser beams are used for melting thin-layer powder laid on a powder bed in advance, and a 3D printing micro-channel cold plate is formed through layer-by-layer powder laying and layer-by-layer melting stacking, so that integrated forming from a three-dimensional die shape to a real object is achieved.
Owner:10TH RES INST OF CETC

Constant volume experiment device capable of simulating injection and atomization processes in isotropic and anisotropic turbulent flow fields

InactiveCN108982110AFlexible and precise control of intensityReduced strengthEngine testingOptical observationOrifice plate
The invention provides a constant volume experiment device capable of simulating injection and atomization processes in isotropic and anisotropic turbulent flow fields. The experiment device comprisesa cylindrical cavity, an axial flow fan blade device, a porous orifice plate, a rotation motor, a frequency converter, a magnetic coupling, a fuel injector and an optical observation window, whereinthe diameter-length ratio of the cylindrical cavity is not less than 35%; the diameter of the axial flow fan blade device is between 80% and 100% of the inner diameter of the cylindrical cavity; the porous orifice plate converts a rotational flow formed by the axial flow fan blade device into a jet flow beam; the rotation motor and the frequency converter are used for controlling the rotation of the axial flow fan blade device; the magnetic coupling realizes the transmission between the axial flow fan blade device and the rotation motor through a non-contact magnetic force so as to avoid a leakage problem during an experiment; the fuel injector is installed in the center position of a cylindrical cavity bus; and the diameter of the optical observation window is not less than 65% of the inner diameter of the cylindrical cavity. When the experiment device is used to carry out turbulent jet and an atomization experiment, an experiment under an isotropic turbulence can be achieved, the experiment under a single mainstream turbulence can be realized, and the experiments under various complex anisotropic turbulences can also be realized.
Owner:BEIJING JIAOTONG UNIV

Biological specimen preserving fluid and system containing same and integrating specimen collection and preservation functions

InactiveCN112293408AHigh crystal transition temperatureImprove temperature stabilityDead animal preservationCold chainTrehalose
The invention belongs to the technical field of medical biology. A biological specimen preserving fluid comprises 10-500 g / L of silk fibroin and 10-500 mmol / L of trehalose, a collecting structure is provided with a silk membrane, the silk fibroin is composed of a large hydrophobic structural domain and a small hydrophilic structural domain to form a nano-scale crystallization structural domain, the crystal transition temperature is high, and protein active molecules fixed on the crystallization structural domain have good temperature stability. Trehalose is a polyhydroxy hydrophilic compound,molecules in the biological specimen and silk fibroin form hydrogen bonds, inherent stability and mechanical strength are achieved for temperature and humidity changes, it is avoided that effective components in the biological specimen are affected by temperature or degradation effects of enzymes, and the problem that a biological specimen needs to be stored in a cold chain in the transportation process is solved. The invention provides a system containing the preserving fluid and integrating specimen collection and preservation functions, and the system can be used for collecting and preserving blood, oral and nasal mucous membrane fluid, sputum, urine, cerebrospinal fluid, lung lavage fluid and the like.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

High-pressure quick joint for high-pressure gas storage and transportation equipment

The invention relates to the field of quick joints and discloses a high-pressure quick joint for high-pressure gas storage and transportation equipment. The high-pressure quick joint comprises a jointbody, a shouldered joint pipe and a sleeve pipe. The joint body is a hollow column with one end open. The upper end of the joint body is provided with an axial inner hole. The bottom of the joint body is provided with a first connecting pipe hole communicating with the axial inner hole. An annular sealing ring is arranged on the bottom surface of the axial inner hole. An annular outer shoulder isarranged on the periphery of the lower end of the shouldered joint pipe. The shouldered joint pipe is plugged into the joint body along the axial inner hole to be in sealing connection with the bottom surface of the axial inner hole. The shouldered joint pipe is sleeved with the sleeve pipe. The lower end face of the sleeve pipe is clamped and pressed on the upper surface of the annular outer shoulder. A plurality of spaced internal threads are machined on the inner wall of the axial inner hole in the circumferential direction. The periphery of the sleeve pipe is provided with a plurality ofexternal threads matched with the internal threads. A limiting check ring is arranged on the upper middle portion of the shouldered joint pipe. Through the high-pressure quick joint, quick connectioncan be realized quickly. All the pressure bearing components adopt the conventional structure form. The high-pressure quick joint is simple in design and high in reliability.
Owner:CHINA PETROLEUM & CHEM CORP +1

Commercial air conditioner

The invention relates to a commercial air conditioner. The air conditioner consists of one or more outdoor units and indoor units connected with each other through refrigerant pipes, wherein a joint of a header pipe and each branch pipe on each refrigerant pipe is provided with a bifurcated pipe; the bifurcated pipe is integrally formed by a straight pipe and an inclined pipe, and one end of the inclined pipe is connected with the outer circumferential surface of the straight pipe; and one outer port of the straight pipe is connected with the header pipe, while the other outer port of the straight pipe and the outer port of the inclined pipe are connected with one branch pipe respectively. The commercial air conditioner has the advantages that the bifurcated pipe is integrally formed by the straight pipe and the inclined pipe, and the inclined pipe is made through extrusion forming on the outer circumferential surface of the straight pipe by means of a precise instrument; the machining mode ensures that the pipe wall thickness at the joint of the straight pipe and the inclined pipe is identical to those of other parts; the part does not blow out due to different pipe wall thicknesses during longtime operation, thereby improving product quality; in addition, because no lack of weld and unsoldering is caused during welding, no refrigerant leakage occurs.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD

Mold and bottom pressure grouting system for gel casting ceramic slice

InactiveCN110539389AGood sealingIncreased rate and uniformity of groutingSlip casting mouldsAir bubbleBottom pressure
The invention discloses a mold and bottom pressure grouting system for a gel casting ceramic slice. The mold comprises partition plates, a gasket is arranged between every two adjacent partition plates, each gasket is in a U shape, a grouting mold cavity is formed among every two adjacent partition plates and the corresponding U-shaped gasket, the partition plates and the bottoms of the gaskets and the bottoms of the grouting mold cavities are sealed, a grouting channel communicating with the corresponding grouting mold cavity is arranged in one of the adjacent partition plates, and each grouting channel communicates with a grouting port arranged on the other one of the adjacent partition plates. According to the mold for the gel casting ceramic slice, grouting is directly conducted from the interiors of the partition plates and the interiors or the upper portions of the U-shaped gaskets, the problem that the bottom of the mold is leaked can not occur, the sealing property of the wholemold is good, communication between the interior and the exterior of the mold is improved through the U-shaped gaskets, the grouting rate and the grouting uniformity can be improved, and generation of bubbles is avoided.
Owner:SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS

A kind of garnet type solid-state composite electrolyte, preparation method and application

The invention relates to a garnet-type solid-state composite electrolyte, a preparation method and an application thereof, and belongs to the technical field of lithium battery electrolyte materials. The composite electrolyte is composed of a lithium salt, an ionic liquid and a garnet-type oxide electrolyte of the LLZO system. The garnet-type oxide electrolyte is used as a solid skeleton, and the ionic liquid electrolyte formed by mixing the lithium salt and the ionic liquid is evenly attached to the surface of the solid skeleton. form an interconnected network structure. The ionic liquid electrolyte is obtained by completely dissolving the lithium salt in the ionic liquid under nearly anhydrous and oxygen-free conditions; then adding a garnet-type oxide electrolyte and mixing uniformly by ball milling to obtain the composite electrolyte. The composite electrolyte has good thermal stability, good interfacial compatibility with electrodes, low interfacial impedance and excellent electrochemical performance; the preparation method is simple and easy to operate, and the raw materials are readily available and safe and pollution-free. Use conventional equipment, suitable for large-scale production.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
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