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295 results about "Liquid Change" patented technology

A liquid begins to change to a gas when a molecule has enough kinetic energy to break the intermolecular bonds holding it together. Let's use an analogy to illustrate this point. Imagine a crowd of 20 people holding each other tightly together, arms locked, legs tied together.

Integrated chip system for high-throughput sorting and counting detection of biological particles, and application

The invention discloses an integrated chip system for high-throughput sorting and counting detection of biological particles, and an application. The chip system comprises a main microfluidic chip, a micropipe, a sample liquid micropump, an exchange liquid micropump, a first waste liquid collecting device, a second waste liquid collecting device, a third waste liquid collecting device, laser emitters, photoelectric conversion devices, optical fibers and a computer, wherein the main microfluidic chip comprises an asymmetric curved flow path, a first branch channel, a second branch channel, a third branch channel, a main flow path, a branch flow path, aligning marks, etc. The system utilizes the asymmetric curved flow path to realize pre-focusing and sorting for the particles, utilizes a liquid changing flow channel to realize change of a carrier liquid of to-be-tested particles and particle cleaning, and utilizes a viscoelastic effect and an inertial effect of a viscoelastic fluid to realize focus of single equilibrium position of section centers of the particles. The system does not need a sheath liquid, complex pre-cleaning of the particles, and optical alignment, has advantages of high speed, high precision, integration, miniaturization, automation, low cost, simple production process, easy batch production, etc.
Owner:SOUTHEAST UNIV

High temperature and high pressure drainage dynamic evaluation system for coal bed and gas reservoir double-layer commingled production

The invention discloses a high temperature and high pressure drainage dynamic evaluation system for coal bed and gas reservoir double-layer commingled production, which comprises a high temperature and high pressure drainage dynamic evaluation instrument for commingled production in which a coal bed gas inlet is combined with an injection outlet and a high temperature and high pressure drainage dynamic evaluation instrument for commingled production in which the inlet is separated from the injection outlet, wherein the high temperature and high pressure drainage dynamic evaluation instruments respectively comprise a driving and displacing module, a core clamping module, a bottom water simulation module, a confining pressure and back pressure module, a vacuumizing module, a measuring module and a temperature control and data acquisition module. The high temperature and high pressure drainage dynamic evaluation system has the beneficial effect that two sets of experiment equipment provided by the invention are specially used for evaluating the feasibility, the rationality, the scientificity and the utility of coal bed gas double-layer commingled production, simulating and evaluating the effects of critical desorption pressure, reservoir pressure difference, supplied liquid change, permeability difference and gas production working liquid level difference in respective reservoirs on drainage parameters under the double-layer commingled production condition and further optimizing a double-layer commingled production and drainage scheme so as to improve the yield of a vertical well and a single well, improve the production efficiency and promote quick, efficient and safe development of coal bed gas.
Owner:SOUTHWEST PETROLEUM UNIV

Method for measuring alkaline phosphatase activity

The invention discloses a method for measuring alkaline phosphatase activity. According to the method, L-ascorbic acid-2-phosphate is taken as a catalytic substrate of alkaline phosphatase, the substrate is hydrolyzed to form L-ascorbic acid under the catalysis of alkaline phosphatase, L-ascorbic acid can reduce bivalent copper into monovalent copper, a bright yellow bivalent copper-bathophenanthroline compound is converted into deep green monovalent copper-bathophenanthroline compound, the higher the alkaline phosphatase activity is, the more obviously the color of a detection liquid changes, and accordingly, semiquantitative colorimetric detection of the alkaline phosphatase activity is realized or quantitative detection is realized through an ultraviolet-visible spectrophotometer. By means of the method, alkaline phosphatase with limit of detection being 3.05 mU*mL<-1> can be detected. Compared with conventional methods, the method has high sensitivity and anti-interference capability and good repeatability, and is simple to operate, short in detection time and low in cost, and a simple, convenient, low-cost, high-resolution and sensitive colorimetric analysis method with stable performance is provided for detection of the alkaline phosphatase activity in a clinic sample.
Owner:NANJING UNIV OF SCI & TECH

Rubber glove leak detection device and detection method

The invention relates to a rubber glove leak detection device. The rubber glove leak detection device comprises a water tank filled with a liquid B; a lifting mechanism is arranged outside the water tank; a fixed joint fixed on the lifting mechanism; the fixed joint is provided with a gas conduction pipe, a liquid conduction pipe and a vacuum pipe; the gas conduction pipe, the liquid conduction pipe and the vacuum pipe are provided with a gas inlet valve, a water inlet valve and a vacuum valve respectively; the gas inlet valve, the water inlet valve and the vacuum valve are connected with an air compressor, a liquid storage tank and a vacuum pump respectively; the gas conduction pipe and the vacuum pipe are provided with a pressure sensor and a vacuum sensor respectively; the liquid storage tank is filled with a liquid A; the fixed joint is sleeved with a holding hoop; a sensor probe is arranged in the water tank; a chromaticity detector is installed on a controller; and the gas inlet valve, the air compressor, the pressure sensor, the water inlet valve, the vacuum valve, the vacuum pump, the vacuum sensor, the lifting motor and the chromaticity detector are electrically connected with the controller. The invention also discloses a detection method. When a glove has a loophole, the two liquids meet, the colors of the liquids change, and the chromaticity detector emits an alarm, and therefore, rubber products can be detected quickly and accurately.
Owner:淄博荣琦自动化科技有限公司

Centrifugal protection electromagnetic adsorption type electrorheological glass lifter motor

ActiveCN110445298AAvoid overloading and overheatingExtended service lifeWindowsWindscreensLiquid ChangeRubber ring
A centrifugal protection electromagnetic adsorption type electrorheological glass lifter motor relates to the technical field of motors and comprises an output shaft, and an inner top wall of the output shaft is provided with a sliding rail. The centrifugal protection electromagnetic adsorption type electrorheological glass lifter motor and an electro-magnetic device are used in a cooperative manner through electrically conductive block one. In an initial state, a rubber ring is attached to a clamping groove, a suspending liquid changes into a solid state in a power-on state, the rubber ring is enabled to be connected with a transmission toothed wheel in a clamped manner to facilitate transmission of the output shaft and the transmission toothed wheel. When the rotating output shaft suddenly stops rotating, inertia which is generated causes the electrically conductive block to slide along a slide rail in a rotation direction and to be connected with the electro-magnetic device in a clamped manner; the rubber ring becomes circular in shape, the diameter of the rubber ring is equal to the inner diameter of the transmission toothed wheel. At this time, the output shaft is used for driving the rubber ring again to idle in the transmission toothed wheel, thus the motor can be protected, the motor can be effectively prevented from overload and overheating which occur when the motor is unable to rotate, and the service life of the motor can be prolonged.
Owner:浙江欧托电气有限公司

Load control balance valve and load control hydraulic system

The invention discloses a load control balance valve and a load control hydraulic system. The load control balance valve (13) comprises a hydraulic control cavity (Pil) and a control port (Px). A pilot control oil circuit (X1) is connected between the control port and the hydraulic control cavity. A temperature compensation speed control valve (17) is arranged on the pilot control oil way so as to enable pilot control oil liquid flowing into the hydraulic control cavity to keep the flow stable in the working condition that the temperature of the oil liquid changes. The load control balance valve is good in process micro control performance, high in stability and capable of still keeping the flow stable under the working condition that the temperature of the oil liquid changes, and has the good self-adaptation adjusting performance of the temperature of the oil liquid. Due to the additional arrangement of the speed control valve, the balance valve can have better starting performance and be rapid in starting response and short in starting time. According to the load hydraulic control system with the load control balance valve, the load hydraulic control system is arranged on the working oil circuit of the load hydraulic control system, and the system is stable in operation, safe and reliable.
Owner:CHANGDE ZHONGLIAN ZHONGKE HYDRAULIC +1

Combined technique for garbage filter liquor treatment

A combination technique of garbage treatment for percolating liquid contains the process of facultative-aerobic biochemical treatment and anti-penetration treatment. The invention is characterized in that: the anti-penetration treatment is arranged before the facultative-aerobic biochemical treatment. The process can also contain deamination treatment which is arranged after the anti-penetration treatment. Compared with the prior arts, the invention of the combination technique of garbage treatment for percolating liquid sets the anti-penetration treatment before the biochemical treatment, which enables most of the pollution material in the percolating liquid to be trapped in advance, directly through the anti-penetration system and solves the problem of biodegradability of garbage percolating liquid changing with age and has small occupying space. The technique sets the deamination treatment after the anti-penetration treatment to achieve high ammonia-nitrogen removal rate: 90-95 percent and puts the facultative-aerobic biochemical technique thereafter, which can greatly reduce the occupying space. The invention relates to the garbage treatment for percolating liquid and has the advantages of technical reliability, economy and strong applicability.
Owner:JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD

Temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of natural geothermal field

The invention discloses a temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of a natural geothermal field. The temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of the natural geothermal field comprises the steps that (1) the horizon of a reservoir needing temporary plugging is determined, and whether the reservoir needing temporary plugging is a crack or hole is determined; (2) the diversion plugging strength of the temporarily plugged reservoir is larger than or equal to the difference between the maximum principle stress and the minimum principal stress of the stratum is determined; (3) the plugging capacity of the horizon of the temporarily plugged reservoir and the crack or the hole are testedthrough flowing experiments of a core and the crack or pipe flow, and the use amount of a temporary plugging diversion system is worked out; (4) according to the distribution curve of the temperatureof liquid in an oil pipe in a shaft, the peak of bottom hole temperature is obtained; (5) an appropriate temporary plugging diversion system is determined; (6) the use amount of displacing liquid is determined, wherein the use amount of the displacing liquid is larger than or equal to the sum of the volume of the shaft and the volume of a liquid infusion pipeline; (7) site operation is organized.According to the temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of the natural geothermal field, liquid is infused into the plugged reservoir, the plugged rack and the plugged hole to achieve effective plugging, liquid-solid-liquid change is achieved by means of the natural geothermal field, the requirements of the temporary plugging diversion technology are met, extra addition of gel breaker is not needed, and the application range is wide.
Owner:PETROCHINA CO LTD +2
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