205 results about "Electrical conductivity meter" patented technology

The invention discloses a simulator for transport of soil pollutant. The simulator comprises a solution injection system, a testing column, a measuring system, and an outlet collecting system, wherein the solution injection system comprises solution injection bottles and guide pipes; valves are arranged at two ends of the testing column, conductivity electrode mounting holes are formed in a side face of the testing column, and an air outlet hole is formed in the top of the testing column; the measuring system comprises conductivity electrodes, a conductivity meter, a pressure sensor, a date collector and a computer; the outlet collecting system comprises a water outlet pipe and an outlet collecting container. According to the simulator, the transfer behavior of pollutants in soil body can be simulated indoors; distribution condition of concentration of pollutant in time and space and the real-time changing of the outlet volume can be acquired in a real-time manner during the simulation; the automation degree is high and the precision is high; therefore, the simulator obviously keeps ahead of relative instruments at home and abroad.

The invention discloses a method for flow-electrode capacitive deionization (FCDI)-based desalination and application. According to the method, a direct current voltage stabilization power supply, a flow electrode, a dual-channel peristaltic pump, an FCDI module unit, a small-size peristaltic pump, a conductivity meter, an organic glass fixing device, a stainless steel interface and an electrode connection splice are involved; one end of each of two pump pipes of the dual-channel peristaltic pump is arranged in each of anode chamber flow electrode liquid and cathode chamber flow electrode liquid, and the other end of the pump pipe is connected with the stainless steel interface in the lower part of the organic glass fixing device; the flow electrode enters the FCDI unit module through the stainless steel interface through pressure provided by the dual-channel peristaltic pump; incoming water is pumped into the FDCI unit module with a prepared sodium chloride solution with different concentration at certain flow speed through the small-size peristaltic pump; the conductivity meter is used for measuring the conductivity concentration of discharged water. A reaction device used in the method is simple in structure, low in operation cost and easy to operate, and no chemicals is fed; automatic control and on-line monitoring are easy to implement; the method is low in energy consumption, and the preparation cost of the electrode is lowered; the method can be applied to the technical field of environmental engineering and water treatment.

The present invention relates to reverse osmosis filtration devices, and more particularly, to membrane filtration devices (10, 11, 12) that have flow meters and fluid conductivity meters powered by RFID tags. Embodiments of the present invention comprise reverse osmosis filters and filtration systems comprising measuring devices, including flow and conductivity meters. The meters of the present invention are preferably located on or within permeate core tubes (16) of filtration devices and systems.

The invention discloses a method for rapidly determining nanofiltration membrane kind and operation conditions during water processing, and belongs to the field of nanofiltration membrane recovery during water processing. The method comprises the steps: (1) screening pressure X1, temperature X2 and water inlet flow X3 as response factors, and designing experiment combinations; (2) employing membrane flux Y1 and pollution index Y2 as response value; (3) immersing a nanofiltration membrane in pure water, pre-pressing for usage; (4) filtering wastewater by a precision filter; (5) performing filtration experiments; (6) at the beginning and after two hours of the membrane filtration experiments in the step (5), respectively employing a balance to measure the water outlet flux, employing a conductivity instrument to measure the conductivity, and employing an ultraviolet spectrophotometer to measure UV<254>, so as to obtain salt removing rate and organics removing rate; (7) determining a regression model equation; (8) determining optimum operation conditions; and (9) determining membrane performance evaluation index I. The method is capable of relatively rapidly performing quantitative evaluation on nanofiltration membrane performances and comparing various nanofiltration membranes through a quantification process.

The invention discloses a shale aperture measurement device and method based on imbibition and ion diffusion property. The device comprises a high-precision analytical balance (1), a support (2), a flask (3), a fishing line (4), a magnetic stirrer (5), a lifting system (6), a conductivity meter (7) and a constant temperature humidity chamber (8). According to the shale aperture measurement device and method based on the imbibition and the ion diffusion property, in a way of experimental measurement, characteristic high capillary force imbibition and strong ion diffusion property of shale are given full play to, a high-precision shale imbibition and ion diffusion synchronous detection device is designed, an average aperture evaluation methodology suitable for shale is provided, and science and precision of shale aperture measurement are further improved; the shale aperture measurement method based on the imbibition and the ion diffusion property has the advantages of being simple in operation, small in environmental influence, low in testing cost and reliable in result.

The invention provides an urban rainwater runoff high-efficiency intercepting well which comprises a gate and a hoist, wherein the gate can seal an intercepting opening; the hoist is used for opening or closing the gat; a detection runner is arranged in a shaft; an electrical conductivity detection probe is fixed in the detection runner; and an electrical conductivity meter is mounted on the outer surface of an intercepting well cover plate. The electrical conductivity detection probe is used for measuring the electrical conductivity in rainwater runoff in real time; a worker can control the opening or closing of the gate according to the detected electrical conductivity so as to conduct interception; and the high-efficiency intercepting well is simple in structure, can conveniently detect the electrical conductivity in rainwater runoff and can conduct interception according to the electrical conductivity. The invention provides an intercepting method of the high-efficiency intercepting well, which can control the opening or closing of the gate according to the detected electrical conductivity to conduct interception so as to achieve the function that the intercepting well conducts flow distribution according to the instant concentration of rainwater runoff, and enable the intercepting wall to achieve a better operating effect in the whole drainage system.

An apparatus for preparing the purified drinking water by removing the ions of metals (especially the heavy metals) and killing microbes has PPF filter, regeneratable cationic exchange fiber filter, accurate activated carbon filter, reverse osmosis, system, electric conductivity instrument, blowdown by-pass, waste water recovering tanks, control system, etc.

The invention discloses an ammonification anthropomorphic inspection type intelligent control system for condensed water in a once-through boiler and a control method. The intelligent control system comprises a flowmeter for acquiring real-time flow Q of a condensed water pump, a first conductivity meter, a second conductivity meter, a third conductivity meter, a DCS controller, and an alternating-current frequency converter which is connected with the DCS controller and a dosing metering pump respectively and is used for receiving a rotating speed frequency signal sent by the DCS controller and adjusting the frequency of the rotating speed of a motor of the dosing metering pump. The ammonification anthropomorphic inspection type intelligent control system for the condensed water in the once-through boiler avoids the hysteretic nature and the non-timeliness which are caused by manual adjustment, saves lots of labor cost and realizes stable and precise control over the pH value of the condensed water in the once-through boiler.

The invention discloses an off-line washing and repairing device for a multifunctional waste reverse osmosis membrane, which mainly consists of a valve, a flowmeter, a conductivity meter, a pressure gage, a water inlet instrument pH, a booster pump P, and precise filters PP1 and PP2. The off-line washing and repairing device for a multifunctional waste reverse osmosis membrane is simple to operate, obvious in washing effect and precise to test; the off-line washing and repairing device is capable of comprehensively washing and repairing in multiple steps under complicated scale formation condition so as to obtain the best washing and repairing effect; the washing number can be increased according to different conditions, and the washing and repairing effects of the waste membrane is better judged in real time; simultaneously, high-speed washing and high-pressure repairing can be performed on the waste reverse osmosis membrane, and the relevant data of the membrane desalting performance during the chemical washing and repairing process can be detected so as to obtain the parameters such as the desalting ratio, water recycling ratio and pressure difference of the reverse osmosis membrane. A plurality of reverse osmosis membranes can be washed and repaired for once through extended function. The repaired reverse osmosis membrane has the characteristic of high repairing efficiency, and the performance reaches or approaches the new membrane index.

The invention discloses an automatic ammonia-water preparing device and method. The automatic ammonia-water preparing device comprises an automatic ammonia-water preparation control cabinet, a drug dispensing box and anti-ammonia-slip device, and an ammonia-gas detecting and warning system, wherein the automatic ammonia-water preparation control cabinet and the drug dispensing box and anti-ammonia-slip device are connected; the conductance ratio of ammonia water in a drug box is detected by utilizing a conductivity meter connected with a conductivity electrode in the drug box, and the concentration of ammonia water is obtained by the matrixing of PLC in the automatic ammonia-water preparation control cabinet, when the concentration of ammonia water is lower than a set value, the PLC sends out a command to open an electric ammonia-gas inlet valve, and when the concentration of the ammonia water in the drug dispensing box reaches the set value, the PLC sends out a command to close the electric ammonia-gas inlet valve; when a liquid level in the drug dispensing box is lower than the low threshold of the set value, the PLC sends out a command to start an electric desalting water inlet valve, and when the liquid level reaches the high threshold of the set value, the PLC sends out a command to close the electric desalting water inlet valve. According to the automatic ammonia-water preparing device disclosed by the invention, manual operation is not needed during the preparation of ammonia water, the concentration of the prepared ammonia water and the liquid level of the drug dispensing box are set by the PLC.

The invention discloses a method for separating taurine in a taurine crude product mother solution. A plurality of electrodialysis separation systems connected mutually are utilized to perform concentration and separation of a taurine solution and a salt solution on the taurine crude product mother solution. Each electrodialysis separation system comprises a weak salt tank, a strong salt tank and electrodialysis plants connected between the weak salt tank and strong salt tank, wherein an conductivity meter and a pressure pump are arranged below the weak salt tank and strong salt tank; all levels of electrodialysis plants continuously perform electrodialysis separation on the liquids pumped into the weak salt tank and strong salt tank until the conductivity of the separated weak phase salt water is lower than 5ms/cm; when a liquid chromatograph determines that the taurine/salt mass ratio is greater than 9:1, the weak phase salt water is subjected to reduced pressure concentration to obtain the taurine solution; when the conductivity of the strong phase salt water continuously separated by the electrodialysis plants is higher than 200 ms/cm, the thick phase salt water is subjected to reduced pressure concentration to obtain the salt solution, or else, the separation treatment of all levels of electrodialysis plants is continued. The method is simple to operate, and has the advantages of low operating cost and favorable separating effect.

The invention relates to a direct-current transmission converter valve cooling water quality online monitoring system and method. The direct-current transmission converter valve cooling water quality online monitoring system and method are mainly used for monitoring water quality in a direct-current transmission converter station and related fields thereof to avoid the problem of scale formation of a cooling tower due to low water quality. A water sample to be detected is delivered to a special water quality analysis groove through a sample delivering pump, water quality is detected through instruments such as a thermometer, a conductivity meter, a hydrotimeter and a total alkalinity meter, results are transmitted to a data acquisition analyzer, and are calculated by built-in data analysis software, and states of the water sample are locally displayed or submitted to an upper computer. The system is easy to operate, visual in detection result and high in adaptability to detection environments, not only can be used for static detection, but also can be used for real-time online monitoring. By the method, common workers can rapidly take measures to solve problems conveniently.

The invention relates to the technical field of water treatment equipment, in particular to an intelligent terminal water purifier capable of realizing the functions of on-line monitoring and printing. The conventional technology cannot provide an on-line monitoring function, so that a customer replaces a filtering assembly according to the using time blindly, the quality of purified water cannot be guaranteed and the using cost is increased. The intelligent terminal water purifier capable of realizing on-line monitoring comprises a shell which is provided with a raw water inlet and a purified water outlet; the intelligent terminal water purifier is characterized in that: a pipeline which is communicated with the purified water outlet is provided with a conductivity meter connected with a control panel arranged on the shell; a singlechip and a printer are arranged inside the control panel; the control panel is provided with a light-emitting diode (LED) display, a printing window and a control key; and the singlechip is connected with the conductivity meter, the LED display, the control key and the printer respectively. The intelligent terminal water purifier can display the condition of water quality in real time and can print the condition of water quality according to the data of an instruction piece of the customer, and perform analysis.

The invention discloses a separation collection method of printing and dyeing wastewater with conductivity as an index and relates to separation collection and classification treatment of the printing and dyeing wastewater. For the problems of serious pollution and increasing treatment loads caused by concentrated discharge of the printing and dyeing wastewater, the printing and dyeing wastewater is divided into "light wastewater" and "heavy wastewater" which are respectively collected through two pipelines. The separation collection method specifically comprises the steps of: mounting an online conductivity meter on a discharge pipe orifice; utilizing the online conductivity meter in combination with an electromagnetic valve; controlling on and off of the electromagnetic valve by setting conductivity so as to realize automatic separation collection of the printing and dyeing wastewater. A separation standard is determined by investigating a workshop and monitoring process drainage water; when the conductivity of wastewater is not less than 3000 us/cm, the wastewater is divided into "heavy wastewater"; when the conductivity of wastewater is less than 3000 us/cm, the wastewater is divided into "light wastewater". By adopting the method to collect the wastewater, the subsequent treatment process load can be effectively reduced, the pollution rate of deep treatment of a double-membrane method is decreased, and the requirements of stable up-to-standard discharge of "heavy wastewater" and recycling of "light wastewater" are satisfied; the mounting is convenient, the operation is simple, the separation efficiency is high and the separation accuracy is 98%.

The application discloses an apparatus and method for testing the conductivity of a battery diaphragm. The apparatus comprises a conductance cell housing, a conductance cell cover, a diaphragm clamp, and a conductivity meter. The conductance cell housing is in a cylindrical shape with one open end, comprises a first circular conductance electrode piece at the inner surface of the bottom, and a first electrode external interface electrically connected with the first circular conductance electrode piece and on the outer surface. The two electrode external interfaces are used to be connected with the conductivity meter. The conductance cell cover is detachably inserted and fixed to the open end of the conductance cell housing, comprises a second circular conductance electrode piece at the inner surface, and a second electrode external interface electrically connected with the second circular conductance electrode piece and on the outer surface. A vacuum valve port and a liquid injection valve port are arranged on the sidewall of the housing. The diaphragm clamp is an interlocked annular structure, has an outer diameter matching the inner diameter of the conductance cell housing, is in parallel with the two conductance electrode pieces and coaxial with the two conductance electrode pieces. The apparatus is simple in structure and easy to operate and can accurately and accurately measure the conductivity and the resistance of the diaphragm.

The invention provides an intelligent electrodialysis control system. The intelligent electrodialysis control system adopts the structure that an electroplate waste liquid storage tank is connected with a first electrical conductivity detector through a first water pump; the first electrical conductivity detector is connected to the waste water inlet of an electrodialytic device; a second electrical conductivity detector is connected to the waste water outlet of the electrodialytic device; a concentrated solution storage tank is connected to a third electrical conductivity detector through a second water pump; the third electrical conductivity detector is also connected to the concentrated solution inlet of the electrodialytic device; a fourth electrical conductivity detector is connected to the concentrated solution outlet of the electrodialytic device; electric conductivity probes and temperature sensors are respectively arranged in the first electrical conductivity detector, the second electrical conductivity detector, the third electrical conductivity detector and the fourth electrical conductivity detector; the electric conductivity probes, the temperature sensors, the first water pump and the second water pump are connected to a PC controller. The intelligent electrodialysis control system is high in dialysis separation rate, increase an effective usable area of a film set, and meanwhile, and is long in service life.

The invention discloses an in-situ test device and a test method for simulating hyporheic exchange of wild high concentration pollutants and belongs to the field of simulating river hyporheic exchange. The device comprises an annular water channel inserted into riverbed bottom mud, a circular driving system, a flow leveling device and a conductivity meter and a temperature probe, wherein the waterchannel is free of a cover plate and a bottom plate, and a porous plate for leveling a water flow; the circular driving system comprises a water pump and a water tank for holding a test liquid, and the test liquid is conveyed from one end of the water channel to the water tank at the other end through the water pump; the flow leveling device comprises a flow leveling grid located below the watertank and a flow leveling bottom plate located below the flow leveling grid. Compared with the prior art, the device avoids interference of human factors to test result in an indoor test, so as to provide a ground for researching the shifting law of sudden high concentration pollutants in wild rivers and lakes, and the device is precise in test result, simple to operate, easy to assemble and high in adaptability.

The invention relates to a carbon dioxide electrolytic device and a method for electrolyzing carbon dioxide. Provided is a carbon dioxide electrolysis device capable of efficiently operating an electrolytic cell while suppressing deterioration of the output of the electrolytic cell for a long period of time. The carbon dioxide electrolytic device (1) includes: an electrolysis cell (2) including acathode (22), an anode (11), a carbon dioxide supply flow path (23), solution supply flow paths (12,21), and a separator (30); a rinse solution source (620) which supplies a rinse solution to at leastone of the solution supply flow paths (12,21) and the carbon dioxide supply flow path (23); a first electric conductivity meter (701) provided on a discharge port side from the electrolysis cell of at least one of the solution supply flow paths (12,21) and the carbon dioxide supply flow path (23); and a rinse solution supply controller (801) which controls stop operation of the rinse solution source (620) according to a measurement result of the first electric conductivity meter (701).

The invention belongs to the technical field of a test for detecting the nutrient releasing rate of a controlled-release fertilizer, relates to a device and method for rapidly detecting the nutrient releasing rate of the controlled-release fertilizer based on an electric conductivity method, and particularly relates to a device and method for rapidly detecting the still water dissolution rate and the accumulation releasing rate of the controlled-release fertilizer based on the electric conductivity method. The device comprises a bracket, a water feeding device, a glass container, a digital display electric conductivity instrument, an electronic stirrer, a PCL control system for controlling detection steps and the like. With the adoption of the special device, an uneven concentration distribution phenomenon caused by external temperature fluctuation and long-time standing of a solution to be detected is avoided; and the detected electric conductivity value of a nutrient solution is relatively reliable and accurate, and meanwhile, the operation time is greatly shortened.

The invention relates to a sodium hypochlorite preparation system capable of being controlled and debugged remotely based on an ARM single chip microcomputer and a working method thereof. The sodium hypochlorite preparation system comprises an ARM single chip microcomputer, a first drive circuit, a second drive circuit, an analog signal processing circuit, an electrolysis power supply, a concentrated salt pump, a softened water regulating valve, a softened water flow module, an operation indication module, an electrical conductivity meter, an alarm indication module, a 4G module, an HMI moduleand a wireless data transmission module. The sodium hypochlorite preparation system has a remote diagnosing and debugging function. Warning and alarm can be issued for the key parameters of system operation, so that users can find safety risks early to avoid loss caused by system device aging. Users can be remotely notified of corresponding alarm and handle the alarm, and the parameters of fieldoperation can also be modified and optimized remotely. By using the Internet-of-things technology, manufacturers and users can have a real-time understanding of the field operation situation and dealwith an abnormal situation in time.

The invention relates to the field of purification of organic amine liquid, and discloses a system for removing a heat-stable salt in organic amine liquid and a method for treating the organic amine liquid by adopting the system. The system comprises an organic amine liquid storage device, an electrode liquid storage device, a desalting water storage device and a membrane stack, wherein the membrane stack communicates with the organic amine liquid storage device, the electrode liquid storage device and the desalting water storage device separately, and an organic amine liquid circulation loop,an electrode liquid circulation loop and a desalting water circulation loop are formed separately, the system further comprises conductivity meters and a control center, and the control center is used for receiving conductivity signals from the conductivity meters, and for adjusting circulation flows of the organic amine liquid circulation loop and the desalting water circulation loop, reuse of the organic amine liquid and discharge of waste liquid according to the conductivity signals of the conductivity meters. When the organic amine liquid is treated by the system, anions and cations in the amine liquid can be removed synchronously, so that consumption of alkali liquid and discharge of the waste liquid are reduced.

The invention provides an RH-MFB (Rockwell Hardness-Medial Forebrain Bundle) metallurgy reaction simulation test device which comprises an RH (Rockwell Hardness) furnace vacuum chamber, a steel ladle, a control electric cabinet and a gas supply device, wherein an oxygen lance is connected at the upper part of the RH furnace vacuum chamber; a vacuum meter and a vacuum pump are arranged on a upper pipeline at the RH furnace vacuum chamber; an elevating pipe and a descending pipe are arranged below the RH furnace vacuum chamber respectively; a second alternative current motor drags one end of a screw binding device to be connected to the bottom of the steel ladle, and the other end of the screw binding device is connected to the control electric cabinet; a second electrode and a acidity meter are dipped into the liquid in the steel ladle; the second electrode is connected with a second conductivity ratio meter; the gas supply device comprises an air storage tank and a CO2 storage tank; the input pipeline of the air storage tank is connected with an air compressor; and a second quality flow controller of the output pipeline of the CO2 gas storage tank is connected with the oxygen lance. According to the RH-MFB metallurgy reaction simulation test device, the influence of different operation parameters and production conditions to the circular flowing property of the steel liquid in the RH steel ladle, the mixing property of a metallurgy reactor and the mass transfer property can be researched; and the device can also be used for education.

The invention relates to a chaotic composite stirring system and a stirring method thereof, and belongs to the technical field of mechanical stirring equipment. The chaotic composite stirring system comprises a chaotic composite stirring device and a monitoring control system, wherein the chaotic composite stirring device comprises a stirring tank, a stirring component, a driving device, a transmission device, a top-blown rotational flow spray gun, a side-blown rotational flow spray gun, a bottom-blown rotational flow spray gun, an air inlet pipe I, an air inlet pipe II and an air inlet pipe III; the monitoring control system comprises a high-speed camera, a laser transmitter, a processor and an electrical conductivity meter. According to the chaotic composite stirring system disclosed bythe invention, combination of mechanical stirring and rotational flow gas stirring in variable-frequency flow is adopted, the area of a chaotic mixing zone can be strengthened by freely changing an eccentricity ratio of the stirring tank, the immersion depth of a stirring shaft and a deviation angle, the gas spray quantities of rotational flow spray guns can be subjected to variable-frequency regulation in real time and can be in periodic pulsation change, the chaotic composite stirring device is enabled to realize chaotic mixing within an extremely short time under low Reynolds number flow, and the mixing efficiency and the heat and mass transfer speed of fluid materials are improved to a large extent.