1365 results about "Liquid medium" patented technology

The invention relates to the technical field of battery pack heat management, in particular to a PLC-controlled battery pack heat management device and a PLC control system thereof.The PLC-controlled battery pack heat management device comprises a battery box, a cooling cavity, a temperature control partition plate, exchange holes, a circulating water pipe, an adjusting assembly and a control assembly; the battery box is of a cuboid structure, the cooling cavity is formed in the bottom of the battery box, the temperature control partition plate is installed in the battery box, the exchange hole is formed in the upper face of the cooling cavity, the circulating water pipes are arranged on the two side faces of the battery box, and the adjusting assembly and the control assembly are installed in the temperature control partition plate. A low-temperature liquid medium is introduced into a cooling cavity through a circulating water pipe and then is input into a temperature control partition plate from an exchange port for cooling, and an adjusting assembly arranged in the temperature control partition plate adjusts displacement of an internal telescopic assembly through the temperature of a battery pack, so that the pipe diameter of a cooling flow channel is controlled; and thus, self-adaptive cooling liquid distribution in the whole battery box is realized.

A natural gas filling device reliable in sealing is disclosed. The device is characterized in that the device comprises a liquid filling gun, a liquid receiving component matched with the liquid filling gun and used for filling a gas cylinder with liquid, and a gas returning component communicated with the gas outlet of the gas cylinder; the liquid filling gun is provided with a first outer shell, a first rotating fastener disposed in the first outer shell and connected to the first outer shell and the inner wall of which is provided with a symmetrical spiral groove, a first valve body between the first rotating fastener and the first shell, and a first valve core disposed in the first valve body and containing a liquid inlet and a liquid outlet; and the liquid receiving component is provided with a first shell, wherein the head of the first shell extends into the first rotating fastener and is in sealing match with the tail part of the first valve body, and the periphery of the first shell is provided with a first pivot pin engaged with the spiral groove in the first rotating fastener. The device is convenient in maintenance, replacement and operation of quick-wear parts and convenient to use. The device can be used for other low-temperature liquid media besides LNG and is simple in structure, low in cost, convenient in operation and reliable in sealing.

The invention discloses a gas pipeline leakage source positioning method, and relates to the field of gas leakage detection. According to the method, acceleration signals and sound wave signals are collected through sensors arranged at detection points, peak value extraction is carried out in respective corresponding frequency domain complex spectrums through data preprocessing, and main frequency signals and frequency multiplication signals are obtained; distinguishing real leakage and interference signals according to the stable frequency integral multiple relation characteristic and time sequence consistency of the two signals; the phase difference is calculated by extracting the phase of the dominant frequency signal and the phase of the corresponding frequency multiplication signal, and the position of the leakage source relative to the detection point is calculated by combining the path sound velocity. The method can capture small distance differences, effectively improves the precision and robustness of leakage positioning, and is suitable for online leakage monitoring and diagnosis of gas or liquid medium pipelines.

Systems and methods for delivering a gas, such as nitric oxide, are provided. In some embodiments, systems and methods are provided for delivering a gas, such as nitric oxide, in the form of nanobubbles and / or a dissolved gas using a liquid medium.

The invention discloses a packaging structure and electronic equipment. The packaging structure comprises a substrate, a chip and a heat conduction cover plate, the chip is arranged on the substrate; the heat conduction cover plate comprises a supporting part, a heat conduction part and an annular connecting part, the supporting part surrounds the chip and is fixedly connected with the substrate, the heat conduction part is located on the side, away from the substrate, of the chip, the heat conduction part and the supporting part are mutually fixed to form a containing space, the containing space is used for containing the chip, and the annular connecting part is fixed to the side, away from the supporting part, of the heat conduction part; the outer side wall of the annular connecting part is used for being connected with heat exchange equipment. The heat exchange equipment outputs the liquid medium into the space surrounded by the inner side wall of the annular connecting part through the spray head, the liquid medium circulates between the heat conduction cover plate and the spray head to take away heat generated by the chip, and the liquid medium does not enter the packaging structure to affect the chip, so that the packaging efficiency is improved. The reliability of the packaging structure is improved, and the service life of the chip is prolonged.

The present invention relates to the technical field of hot stamping steel. Disclosed is a soaking-type stamping method and apparatus for hot-formed steel, comprising the following steps: step 1: transporting a prepared blank into a furnace chamber for austenitizing heating, the blank being made of a hot-formed steel material; and step 2: immersing a lower forming punch into a liquid medium within a tank assembly, and placing the heated blank onto a material support frame by means of a loading manipulator, the tank assembly being internally provided with the liquid medium. A soaking-type stamping method is used in the present invention, which, compared to the direct hot-forming method in the prior art, optimizes the structure of a mold, reduces the machining of water channels in hot stamping devices of the prior art, and shortens the processing cycle and reduces costs while broadening the applicable range of materials, solving the issue of oxide scale on uncoated plates and the lime problem of galvanized steel plates, and having low investment costs and being easily controlled for automation.

To provide: a chemical mechanical polishing composition capable of rapidly polishing a silicon oxide film while suppressing the occurrence of polishing defects during polishing of the silicon oxide film, and also exhibiting excellent polishing characteristics even after storage; a polishing method using the same; and a method for producing abrasive grains that can be used in the chemical mechanical polishing composition.SOLUTION: The chemical mechanical polishing composition according to the present invention contains abrasive grains and a liquid medium. Polymer chains are grafted onto the surface of the abrasive grains through covalent bonding, and the abrasive grains have, on their surface, at least one type of partial structure selected from the group consisting of the partial structure represented by the following general formula (3) and the partial structure represented by the following general formula (4): -NR2R3 (3); and -N+R2R3R4M- (4) (In the formulas (3) and (4), R2, R3 and R4 each independently represent a hydrogen atom or a substituted or unsubstituted hydrocarbon group, and M- represents an anion.)SELECTED DRAWING: None

The invention provides a dynamic heat-water-force coupling test device and test method, and relates to the technical field of rock performance test.The device comprises a sample chamber for containing a rock sample; the heat loading assembly, the pore water pressure loading assembly and the force loading assembly are integrally arranged; the heat loading assembly comprises a heating element and a cooling element so as to simulate an environment in a wide temperature range or under a freezing and thawing cycle condition; the pore water pressure loading assembly is communicated with the rock sample to establish pore water seepage loading; an axial pressure loading element of the force loading assembly applies dynamic axial pressure to the rock sample, and a confining pressure loading element of the force loading assembly applies dynamic confining pressure to the rock sample; the sealing sleeve wraps the rock sample so as to isolate the confining pressure medium from the liquid medium. According to the device provided by the invention, three dynamic loads including the dynamic temperature, the dynamic pore water pressure and the dynamic mechanical stress can be synchronously applied and accurately controlled in a single device, so that a rock sample is subjected to a mechanical test in a vivid dynamic multi-field coupling environment.

The invention provides a wafer stripping device and a control method thereof, and belongs to the technical field of semiconductor processing. The wafer stripping device comprises an ultrasonic water tank, wherein a liquid medium for transmitting ultrasonic waves is accommodated in the ultrasonic water tank; the ultrasonic generator is arranged in the liquid medium, and the radiating surface of the ultrasonic generator faces the top of the ultrasonic pool; the movement mechanism is used for installing the crystal ingot, so that the target end of the crystal ingot faces the ultrasonic water tank, the target end of the crystal ingot is close to the modified layer, the end face of the target end is parallel to the radiating surface of the ultrasonic generator, and the movement mechanism is further used for controllably driving the crystal ingot to rotate in the axial direction of the crystal ingot and move in a reciprocating mode in the horizontal direction; wherein the movement mechanism is used for driving the crystal ingot to rotate at a preset rotating speed and move along the horizontal direction at a preset speed, so that the energy of the ultrasonic generator continuously acts on the modified layer of the crystal ingot to strip the wafer. According to the wafer stripping device, the probability of wafer cracking can be remarkably reduced.

The invention provides a common-bottom storage tank internal pressure loading system in a low-temperature environment, and the system comprises a liquid medium filling system which is used for filling a liquid medium into an upper tank or a lower tank of a common-bottom storage tank; and the gas pressurization system is used for pressurizing gas in the upper box or the lower box of the common-bottom storage box, and liquid medium filling and gas pressurization can be carried out at the same time.

The invention belongs to the technical field of mechanical arms, and provides a multi-degree-of-freedom industrial carrying mechanical arm which achieves stable and accurate clamping and carrying of square materials through the collaborative operation design of hydraulic driving and a mechanical structure, hydraulic clamping is combined with the lifting action of a mechanical arm, and therefore the mechanical arm can stably and accurately clamp and carry the square materials. The clamping jaw and the clamping jaw work cooperatively, an extra power source is not needed, the clamping action of the clamping jaw is achieved through a liquid medium, the system structure is simplified, and energy consumption is reduced.

The present invention relates to a method for producing a mycelium sheet. The invention discloses a method for producing a mycelium sheet, which comprises the following steps of: standing and culturing fungi in a liquid culture medium containing cellulose, so that the mycelium sheet is formed on the surface of the liquid culture medium; and collecting the mycelium sheet from the surface of the liquid culture medium containing cellulose.

The invention provides a metal corrugated pipe concave type forming device and method, and relates to the technical field of metal pipe non-cutting machining, and the metal corrugated pipe concave type forming method comprises the steps that a servo driving mechanism drives a first core mold to expand to the designed diameter in the radial direction, and the first core mold is pushed to move in the axial direction to be folded with a second core mold; the upper die and the lower die are driven by the first hydraulic cylinder to get close to each other for die assembly; a liquid medium is injected into the sealing cavity through the hydraulic assembly; the first hydraulic cylinder drives the upper die and the lower die to move away from each other; a servo driving mechanism drives a first core mold to radially contract and axially move, and a second hydraulic cylinder synchronously drives a second core mold to push formed corrugations; the servo driving mechanism drives the first core mold to axially move in the direction close to the second core mold for resetting, and the second hydraulic cylinder drives the second core mold to reset. The first core mold and the second core mold are adopted to move cooperatively for feeding, full-automatic continuous machining of the metal corrugated pipe is achieved, and the forming efficiency is remarkably improved.

The invention discloses a temperature sensor based on a liquid-filled high-polarization-maintaining low-loss anti-resonance hollow-core optical fiber, and the temperature sensor comprises a temperature control assembly which is internally provided with an optical fiber sensing segment, and the cavity of the optical fiber sensing segment is filled with a liquid medium; the butt joint assembly is used for coaxially connecting the optical fiber sensing section with the input side light path and the output side light path, and a gap with a preset distance is formed at the joint; the surrounding assembly is arranged outside the butt-joint assembly in a surrounding mode and used for forming a surrounding cavity, the surrounding cavity is communicated with the gap to form a constant-pressure channel, the surrounding assembly is communicated with a pressure source in the filling stage so that the liquid medium can be pressed into the optical fiber sensing section to be subjected to liquid sealing, and the surrounding assembly is used for achieving constant pressure of the optical fiber sensing section through the constant-pressure channel in the detection stage; and the detection unit is used for collecting the spectrum interference characteristics output by the optical fiber sensing section through the output side optical path in the working wave band and outputting a temperature signal according to the spectrum interference characteristics. The stability of signals and the linearity of temperature response can be improved.

The invention relates to the technical field of signal detection and acquisition. The invention provides a pulse signal acquisition device based on a solid-liquid coupling structure. The pulse signal acquisition device comprises a shell, a flexible film and a pressure sensor, the shell is of a hollow structure, and an opening is formed in the lower end of the shell; the flexible film is arranged at the lower end of the shell and extends outwards from the opening; the shell and the flexible film form a sealed cavity, and the sealed cavity is filled with a liquid medium; the pressure sensor is arranged at the upper end of the shell and makes contact with the liquid medium. A sensing coupling interface is constructed through the flexible film and the liquid medium, a continuous compliant solid-liquid contact path is formed, and the problems of energy reflection and signal attenuation caused by mismatching of mechanical impedance of a traditional rigid structure sensor are solved. According to the pulse signal acquisition device, impedance natural transition and pressure wave stable conduction between the skin and the sensor are achieved, and the coupling efficiency and acquisition sensitivity of the pulse signal acquisition device are improved.

The invention belongs to the technical field of equipment special for petrochemical engineering, and particularly relates to the technical field of oil-gas mixture conveying, in particular to an intelligent multiphase booster pump device which is used for pumping a gaseous medium, a liquid medium or a gas-liquid mixed medium. The booster pump comprises a support, a pump driving device and a pump cylinder component. And the booster pump pre-mixes the pumping medium on the basis of adjusting the power of the motor and / or the acting area difference of the two sides of the inner cavity, so that the pumping medium is not subjected to phase splitting within the preset lift. Piston driving is innovatively adopted to achieve oil-gas mixed transportation, compared with an existing mixed transportation pump, the gas carrying amount is larger, the asymmetric piston pumping mode is adopted, and based on the pressure difference of a left cavity and a right cavity in a cylinder, compression and premixing of pumping media are quite efficiently achieved; under the condition that oil-gas separation equipment and heating equipment are not used, the fact that the piston pump with ultrahigh pumping efficiency is used for conveying the oil-gas mixture is achieved, and the pumping efficiency of the oil-gas mixture is greatly improved.

Disclosed herein is a biomineral supplemental blend for the replacement of hydraulic cement to create sustainable controlled low strength material (CLSM) with composition comprising a biomineralized algae, a silica source, pozzolan, biochar and / or bio-fly ash; and an aggregate; where the aggregate comprises a secondary binder, sand and / or rock, hydraulic cement, and filler material(s). Also disclosed herein is a method of manufacturing a transportable dry biomineral supplemental blend CLSM dry paste composition comprising blending together a microorganism package, a biomineralized algae, biochar and / or bio-fly ash, and pozzolan; mixing the biomineral supplemental blend, with hydraulic cement, cementitious materials, and liquid media to form a sustainable CLSM paste; and mixing the sustainable CLSM paste with an aggregate to form a sustainable CLSM mix design.

The invention relates to the technical field of polymer optical materials, in particular to an optical-grade polymethyl methacrylate material and a preparation method thereof, and the optical-grade polymethyl methacrylate material comprises the following raw materials in parts by weight: 95-105 parts of methyl methacrylate, 200-240 parts of a composite liquid medium, 1.5-2.5 parts of a composite additive and 0.08-0.12 part of an initiator. According to the invention, the composite additive is used as a main material and the composite liquid medium is used as an auxiliary material, so that the heat resistance and the size stability of the material are synergistically improved, powder in the composite additive is uniformly dispersed in a methyl methacrylate matrix to form a compact physical support skeleton, and the powder is matched with a treating agent and a methyl methacrylate molecular chain to form strong chemical bond combination; the composite liquid medium optimizes the flowability of a polymerization system, reduces polymerization internal stress residues, avoids material deformation caused by internal stress release at high temperature, and enhances high-temperature stability.

In a method for continuously supplying a metering device with different batches of one and the same liquid medium, a progressive addition of the medium of a new batch takes place during a batch change.

The invention discloses a method and a device for measuring sound field distribution of an ultrasonic cleaning tank, which can be used for real-time measurement of any space point sound pressure and point frequency of a liquid medium in ultrasonic cleaning equipment and can also be used for acquiring sound field distribution after interference superposition of sound pressure and frequency of any longitudinal and cross sections of the cleaning tank. Measurement signals of the sensor are subjected to impedance and amplitude adjustment, shaping, frequency band bridging and dynamic gain adjustment, spatial interpolation and windowing are carried out on measurement data, and a sound pressure and frequency measurement algorithm is combined, so that the parameter distribution rule of the sound field in the cleaning tank can be accurately obtained. According to the invention, an on-line detection means can be provided for the ultrasonic cleaning equipment so as to ensure the operation condition of the field cleaning equipment, and reference and basis can be provided for optimizing the structure of the cleaning equipment and the layout of the transducer.

Disclosed herein is a biomineral supplemental blend for the replacement of hydraulic cement to create sustainable cement and concrete with composition comprising a biomincralizcd algae, a silica source, pozzolan, biochar and / or bio- fly ash; and an aggregate; where the aggregate comprises a primary binder, a secondary binder, sand and / or rock, hydraulic cement, filler material(s), and admixtures. Also disclosed herein is a method of manufacturing a transportable dry biomineral supplemental blend composition comprising blending together a microorganism package, a biomineralized algae, biochar and / or bio-fly ash, and pozzolan; mixing the biomincral supplemental blend with hydraulic cement, cementitious materials, and liquid media to form a sustainable cement; and mixing the sustainable cement with an aggregate to form a sustainable concrete.

A solution for forming a solid electrolyte, includes: a plurality of silicon oxide particles dissolved in a liquid medium. The silicon oxide particles are functionalized with organic moieties including: at least four non-hydrogen atoms, of which one atom is covalently bonded to a silicon atom of the silicon oxide particles, and a linkable functional group capable, after activation by a radical species, of forming a covalent bond by reaction with another identical linkable functional group. The organic moiety has at least two atoms, not part of the linkable functional group, that are bonded by a x bond to each other. A ratio of the number of the organic moieties to the number of silicon atoms comprised in the plurality of silicon oxide particles is at least 0.3, and an electrolyte compound.

The utility model discloses a hydraulic support roof-contacting device, belongs to the technical field of coal mining equipment, and solves the problem that support top beams of hydraulic supports are not compactly contacted with the roof due to unevenness of roadway roofs. Comprising a closed high-pressure liquid tank, the lower portion of the high-pressure liquid tank is detachably connected with a support top beam of a hydraulic support, a plurality of floating type roof-contacting mechanisms are arranged on the upper portion of the high-pressure liquid tank, driving parts of the floating type roof-contacting mechanisms are located in the high-pressure liquid tank, and roof-contacting parts of the floating type roof-contacting mechanisms are located above the top of the high-pressure liquid tank. And a high-pressure liquid medium with a constant volume is arranged in a liquid cavity of the high-pressure liquid tank. The hydraulic support is reasonable in design, compact in structure and capable of automatically adjusting the telescopic length of a plurality of floating type roof contact mechanisms according to the actual shape of the roadway roof so as to be tightly attached to the uneven and undulating roadway roof, and the supporting effect and the use safety of the hydraulic support are effectively improved.

The invention relates to the technical field of extractor hoods, and discloses an extractor hood which comprises a machine shell, a smoke suction device, a steam generation assembly and a water supply assembly. The smoke suction device is connected to the machine shell. The steam generation assembly is connected to the machine shell and used for heating the liquid medium to generate steam so as to clean the smoke suction device. The water supply assembly comprises a water supply flow path and a water injection port communicated with the water supply flow path, the water supply flow path is communicated with the steam generation assembly, and the water supply assembly is movably arranged on the machine shell to have a working state and a containing state. According to the technical scheme, liquid media can be conveniently supplied and stably conveyed, meanwhile, the problem that accessories are prone to being lost is solved, the internal layout is simplified, and steam cleaning is stably achieved.

The invention belongs to the technical field of microorganisms and fermentation, and discloses a method for synergistically fermenting ginseng powder through bacteria and enzymes, acetobacter aceti, ginseng spice and application, and the method comprises the following steps: (1) preparing a ginseng powder liquid culture medium; (2) inoculating acetobacter aceti and cellulase, and performing liquid fermentation for 24-36 hours; (3) inoculating amylase, and continuously fermenting for 96-120 hours; and (4) after fermentation is finished, supplementing ethanol until the final volume concentration of ethanol is 45-55%, stirring at normal temperature for 24 hours, standing, settling and filtering to obtain supernate, namely the ginseng spice. According to the preparation method, the earthy smell of the traditional ginseng spice can be remarkably reduced by the obtained ginseng spice through technologies such as bacterium-enzyme synergy and specific microbial fermentation metabolism control, meanwhile, the ginseng spice has typical aroma characteristics and is high in suckability, and meanwhile, the product quality of ginseng spice series cigarettes is effectively improved.

The invention relates to a method for preparing ketoxime compounds, which comprises the following steps: contacting a ketone compound, a catalyst and an ammonia source in a liquid-phase medium to obtain a reaction mixture, and releasing ammonia gas from the ammonia source; the catalyst comprises a carrier and active metal loaded on the carrier, the active metal comprises IB group metal and VIII group metal, and the carrier comprises a titanium silicalite molecular sieve; introducing the first raw material gas and the second raw material gas into the reaction mixture to be in contact with a catalyst for in-situ reaction to obtain a reaction product containing the ketoxime compound; wherein the first feed gas comprises hydrogen, and the second feed gas comprises oxygen. According to the method, hydrogen and oxygen are used as reaction raw material gases, ketoxime is prepared through in-situ ammoximation of ketone compounds, the safety problem caused by production, use, storage and transportation of hydrogen peroxide is solved, and the method is simple in process and environmentally friendly.

The invention relates to a switching device (24) for switching a volume flow of a liquid medium to and from two cylinder chambers of a device (10) of an application system for the liquid medium, the switching device comprising: a substantially cylindrical switching body (32), a housing (28), and an interior (30) which is formed in the housing and into which the switching body (32) is inserted to rotate about the central axis (34), comprising a housing inlet (26a) which is connected, through the housing (28) via a channel, to a first cylinder chamber outlet (36a) and a second cylinder chamber outlet (36b) on the housing (28), and a housing outlet (26b) which is connected, through the housing (28) via a channel, to a first cylinder chamber housing inlet (36c) and a second cylinder chamber housing inlet (36d) on the housing (28), wherein the switching body (32) has at least a first channel (38a) and a second channel (38b) which each extend between two corresponding points on the lateral face of the switching body and are designed such that a rotation of the switching body in the interior of the housing results in a mutual connection of the housing inlet (26a) to the first cylinder chamber housing outlet (36a) or the second cylinder chamber housing outlet (36b) and a connection between the first cylinder chamber inlet (36c) or the second cylinder chamber inlet (36d) and the housing outlet (26b). The invention further relates to a device (10) for an application system for a liquid medium, having the switching device (24) and having a device with two cylinder chambers (20a, 20b).

The utility model discloses an exhaust connecting system and an exhaust device. The system comprises a first connector, a second connector, a third connector, a first switch valve, a second switch valve, a third switch valve, a first pressure measuring element and a second pressure measuring element. The first and second joints are connected with first and second pipelines of an external instrument; the third joint is used for being connected with an external pressure pump set for conveying a liquid medium; the third connector is connected with the first end of the third switch valve, the second end of the third switch valve is connected with the first ends of the first switch valve and the second switch valve, the second end of the first switch valve is connected with the first connector, and the second end of the second switch valve is connected with the second connector. A first pressure measuring element is connected to a pipeline for connecting the second end of the third switch valve with the first ends of the first and second switch valves; a second pressure measuring element is connected to a pipeline connecting the third connector and the first end of the third switch valve. The system can ensure that gas can be completely exhausted from the instrument pipeline in the online troubleshooting process, and the safety of the operation process is ensured.

This invention discloses an acoustic emission sensing device, comprising: a reflection module, which is constructed as an arc-shaped paraboloid with its concave surface facing the object to be monitored, for reflecting acoustic emission waves emitted by the object to be monitored, so that the acoustic emission waves fall within the detection range of the sensing module; and a sensing module, which is disposed within the focal range of the reflection module, for acquiring the acoustic wave signal formed by the acoustic emission waves propagating through the gas-liquid medium. The focal range is the optimal installation position within the effective detection range corresponding to the sensing module acquiring acoustic wave signals formed by acoustic emission waves emitted from different locations on the object to be monitored. This invention is applicable to the acquisition of acoustic wave signals propagating through gas and liquid media, increasing the range and intensity of the acquired signal, enhancing the acquisition effect of weak acoustic signals, and featuring high sensitivity and signal-to-noise ratio, thereby improving the coverage and reliability of immersion acoustic emission detection.

A low capital and environmentally friendly process of extracting materials from liquid media by adjusting the effective alkalinity in a quantity of the liquid medium to a preset value independent of the pH. Interactions of the anionic reactant species with components within the liquid medium causes a solid form of the material to precipitate out of the liquid medium. After the solid separation, the spent liquid exists the system and may be injected underground or transported to a storage unit.