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201 results about "Water testing" patented technology

Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.

Three-dimensional artificial rainfall reservoir type landslide physical model testing equipment

The invention provides three-dimensional artificial rainfall reservoir type landslide physical model testing equipment. The equipment comprises a box body, wherein the periphery and the bottom of the box body are sealed, the top of the box body is provided with an artificial rainfall system; a landslide bed is arranged in the box body; a landslide body is arranged on the landslide bed; the top end of the landslide bed is provided with a rear edge water complementing system for simulating ground water flow; a physical quantity test and control system is arranged in the landslide body; a TDR water testing system is arranged on one surface of the landslide body; a reservoir water level control system for controlling the water level in right front of the landslide body is arranged outside the box body; an exit gate is also arranged on the box body in right front of the landslide body. The testing platform system has the high integration and automation degrees, can be used for deformation damage model tests of a landslide under the action of a plurality of factors, and can perform the three-dimensional landslide physical simulation test research on landslide stability characteristic with the consideration of rainfall, reservoir water level rising and falling and coupling functions.
Owner:CHINA THREE GORGES UNIV

Variable water head sectional permeation coefficient measuring equipment and measuring method

The invention provides variable water head sectional permeation coefficient measuring equipment which comprises a falling head micro-water testing device, a double-plug blocking device and a probe, wherein the micro-water testing device comprises a measuring cylinder and a water leakage shock tube which are connected though a water guide tube; the double-plug blocking device comprises a high-pressure air cylinder, a one-way valve, a pressure gauge, a first plug and a second plug which are connected through a gas guide tube from top to bottom in sequence; a gas valve is further arranged between the one-way valve and the pressure gauge; and the first plug, the water leakage shock tube and the second plug are arranged inside the probe from top to bottom in sequence. The invention further provides a method for measuring the sectional permeation coefficient by using the equipment. The equipment is simple in structure, low in cost and convenient to use; and the first plug and the second plug are swelled to block and isolate a section of drilling holes by compressing air using the high-pressure air cylinder, the permeation coefficient of a water-bearing layer near the drilling holes at the sealed section can be measured by using the micro-water testing device, and the measurement result is accurate.
Owner:HOHAI UNIV

Water-testing seal plug and water testing method thereof

The invention discloses a water-testing seal plug and a water testing method, and the water-testing seal plug comprises a housing, a cam, a handle, an expansion mechanism, a front retaining ring and a seal ring, wherein the cam comprises two cam contact surfaces which are connected by a plurality of arcs and located at the different distances from the rotating axle center of the cam, and a rotating shaft of the cam is connected with the handle and the expansion mechanism; and the expansion mechanism comprises an expansion body and an expansion block, a groove is formed on the outer surface ofa ladder of the expansion block and a tension spring is placed in the groove and used for clamping and binding the expansion block on the expansion body. When in use, the water-testing seal plug is aligned with an electric heating port, the handle is adjusted to the horizontal position, the expansion body moves upwards, the expansion block becomes large uniformly on the inner side of the tension spring, then the electric heating mounting port is further tightened, and the seal ring simultaneously enters into a concave groove of an electric heating flange plate for compression and sealing so as to achieve the water testing purpose. The water-testing seal plug is simple in structure and convenient to operate, as long as the cam is pressed into the appropriate position by an employee, the expansion block can expand so as to achieve the effect of fixing with the electric heating port, the water-testing seal plug is applicable to line production and the production efficiency is greatly improved.
Owner:SHANDONG LINUO PARADIGMA

Leaf water near infrared non-destructive testing device and method in light open environment

The invention discloses a leaf water near infrared non-destructive testing device in a light open environment, comprising a modulation light source, a testing circuit and calculating and processing equipment, wherein the modulation light source is used for launching alternating current optical signals with modulated light intensity to a leaf according to an alternating current rule, the testing circuit is used for converting the alternating current optical signals permeating through the leaf to spectroscopic data, and the calculating and processing equipment is used for calculating the water concentration of the leaf from the spectroscopic data. The invention also discloses a leaf water near infrared non-destructive testing method in the light open environment, comprising the following steps of sequentially illuminating two lights with preset wavelengths, which are a first light and a second light, onto the surface of the leaf through optical fibers; converting the two lights which transmitting the leaf to first spectroscopic data and second spectroscopic data; calculating the water concentration of the leaf according to the two kinds of spectroscopic data. The device has simple structure, and can carry out testing in the light open environment and eliminate attenuation caused by light absorption and scattering of a leaf background in the process of water testing to enable a measured value of the water concentration to be more accurate.
Owner:CHINA AGRI UNIV

Method for acclimatization culture of shrimp postlarvae by using inland soda-type saline-alkali water

The invention discloses a method for acclimatization culture of shrimp postlarvae by using inland soda-type saline-alkali water. By a water measuring acclimatization culture measure, large-scale shrimp postlarvae with higher adaptive capacity are cultured so as to solve the problem of stocking of commercial shrimp postlarvae cultured by the inland soda-type saline-alkali water. On the basis of water testing analysis, shrimp postlarvae culture pond water in primary shrimp places of coastal areas is taken as basic water, a method of adding the inland soda-type saline-alkali water into the basic water, feeding bait and propagating, and optimally regulating water quality is adopted, and an acclimatization culture speed that the alkalinity of the acclimatization culture pond water is improved by 1 mol/m<3> every 12 hours is adopted. By the method, NaCl shrimp postlarvae culture pond water with the alkalinity of 2.94mol/m<3> is changed into NaHCO3 inland soda-type saline-alkali water with the alkalinity of 37.29mol/m<3>, the survival rate of Litopenaeus vannamei Boone with the average specification of 0.8cm subjected to acclimatization culture for 18 days is 47.36 percent, and the average specification after the acclimatization culture is 2.73cm.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Obstruction type multi-module water quality biological detection equipment and method

The invention discloses obstruction type multi-module water quality biological detection equipment and an obstruction type multi-module water quality biological detection method. The equipment comprises an obstruction index selection module and a water quality testing device, wherein the obstruction index selection device is used for selecting a qualified or effective gradient obstruction degree combination, and the water quality testing module is used for detecting the water quality of the water body to be detected according to the behaviors of indicator organisms passing through each obstruction in the effective obstruction degree combination after being injected into the water body to be detected. According to the method, on the basis of behavior difference of the indicator organisms ina clean water body and a polluted water body, the distribution area of the indicator organisms is counted by establishing the relationship between the water body pollution degree and the distributionarea of the indicator organisms so as to determine the pollution degree of the water body. The method can accurately and quickly detect the pollution degree of the water body, does not need chemicalanalysis, physical detection and other technologies, and has the advantages of low cost, quick operation, accurate result and the like.
Owner:HOHAI UNIV +1

Water quality testing and treating device

The invention discloses a water quality testing and treating device, which comprises an impounding reservoir. A first water inlet pipe is arranged on one end of the impounding reservoir; a first wateroutlet pipe is arranged on the other end of the impounding reservoir; a bacterial detection sampling pipe is arranged on the first water inlet pipe; a PH value detection sampling pipe, a turbidity value detection sampling pipe and a residual chlorine number detection sampling pipe are sequentially arranged on one side of the impounding reservoir from left to right; a PH value determinator, a turbidity determinator and a residual chlorine total chlorine determinator are respectively arranged on one ends, far away from the impounding reservoir, of the PH value detection sampling pipe, the turbidity value detection sampling pipe and the residual chlorine number detection sampling pipe. The water quality testing and treating device provided by the invention has the beneficial effects that thewater treating device can be used for systematically and efficiently treating water according to a testing result after the water quality detection is completed, and enabling the water to meet the state specified standard so as not to further influence follow-up use of a water resource, meanwhile, the water testing and treating efficiency is improved, and energy conservation and environment protection are facilitated.
Owner:WUXI X RES PROD DESIGN & RES

Method for measuring depth of loose ring of deeply-buried columnar jointed rock tunnel

The invention provides a method for measuring the depth of a loose ring of a deeply-buried columnar jointed rock tunnel. The method comprises the steps that firstly, holes are formed in the rear portion of a tunnel face of the tunnel and used for installing Bragg fiber grating sensors; the interface of the loose ring of the deeply-buried columnar jointed rock tunnel is measured according to readings of the Bragg fiber grating sensors, and then the depth of the loose ring is obtained; fracture pressure and reopening pressure of cylindrical surfaces on the two sides of the interface of the loose ring are measured through a cyclic pressure water test method; by analyzing the difference value of the measured fracture pressure and the measured reopening pressure, the depth of the loose ring of the columnar jointed rock tunnel is further determined accurately. The method is combined with a testing method to conduct correction mutually, data measured by the grating sensors are monitored and analyzed by means of the optical principle, and measured data are accurate, intuitive and easy to distinguish; furthermore, the loose interface and depth are determined accurately according to data, measured by the grating sensors, of the loose interface and depth of the columnar jointed rock tunnel through pressure water testing.
Owner:POWERCHINA HUADONG ENG COPORATION LTD

Water quality safety monitoring and management system

The invention discloses a water quality safety monitoring and management system. The water quality safety monitoring and management system includes a water quality server, and the water quality serveris connected with a water quality monitoring terminal, a water source database, a display terminal and a plurality of stage water quality acquisition modules. According to the water quality safety monitoring and management system, the water quality in waterworks is tested and analyzed through the water quality monitoring terminal to determine whether the water quality discharged from the waterworks meets the requirements or not; through the stage water quality acquisition modules, combined with the water quality server, the water quality in water pipes is tested and analyzed to determine thewater quality safety variation coefficient in the process from the previous water pipe to the next water pipe and determine whether the water pipes are abnormal or not, and thus maintenance and replacement of the water pipes by management personnel are convenient; and the water quality cumulative variation coefficient flowing into user homes is calculated to determine whether the water quality meets the demands of people or not, the efficiency, safety and reliability of water quality testing are greatly improved, the quality of domestic water is improved, and a solid foundation for domestic water testing is provided.
Owner:南昌市湾里自来水有限责任公司

Ceramic toilet bowl grading-detection water-testing production line

The invention discloses a ceramic toilet bowl grading-detection water-testing production line. The production line comprises a toilet bowl feeding line, leakage detection lines, a repair line, a repair return line, water testing lines, a confluence line, a packaging line, a tool plate return line, a toilet bowl feeding line inlet, appearance inspection machines, leakage detection machines, water testing machines, blocking lines, a tool plate and a jacking transfer. Toilet bowls can be placed on the tool plate in the production line, flow along with the production line, and are inspected through the appearance inspection machines and the leakage detection machines in sequence and automatically distributed to other parallel connection production lines through blocking devices and the jacking transfer, and finally qualified products automatically flow into the water testing lines, are tested through the water testing machines and can also be automatically distributed to other parallel connection production lines through the blocking devices and the jacking transfer. Accordingly, large-batch or various products can be subjected to production detection at the same time, machines are adopted for replacing manual production and detection, the space is reasonably utilized, production efficiency is greatly improved, the production cost is reduced, and the product quality is improved.
Owner:GUANGDONG HUI LIXING SEIKO TECH

Cotton cloth color-fastness-to-water grading standard sample and preparation method thereof

The invention discloses a cotton cloth color-fastness-to-water grading standard sample. A color-fastness-to-water testing result of the standard sample to water is ranged from grade 2 to grade 5 and includes the daily detection range of the color fastness to water in current textile and clothing fields. A method mainly includes the following preparation steps: preparation of grey fabrics, pre-treatment, dyeing, dewatering and drying, tentering, cloth inspection and coiling, sample preparation, homogeneity testing, stability testing, and packaging. The standard sample is easy to preserve and transport, and the uniformity and stability are in accordance with regulations through verification. The standard sample for cotton cloth color-fastness-to-water grading is suitable for textile color-fastness-to-water detection personnel to use in proofreading of detection results, technical training, result comparison, ability verification and the like in the inspection and detection agencies and production and circulation fields. The standard sample can solve the problems of single quality control method and laboratory ability evaluation universally existing in the present-stage detection agencies and production and circulation fields, and can ensure the accuracy and consistency of experimental results.
Owner:任亮
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