117 results about "Electrical conductivity meter" patented technology

The invention discloses an automatic ammonia preparation device for adding ammonia water into condensed water at multiple points, and belongs to the technical field of industrial water treatment. Comprising an ammonia preparation unit, a multi-path adding unit and a control unit, the ammonia preparation unit comprises an ammonia water storage tank, a desalted water tank, a mixing and diluting tank, a first metering pump, a second metering pump and an online conductivity meter; the ammonia preparation unit is used for mixing ammonia water and desalted water in proportion; the multi-path adding unit comprises a main distribution pipeline and at least three parallel adding branches, each adding branch is communicated with a regulating valve, a flow meter and a static mixer, and the multi-path adding unit is used for adding mixed ammonia water to a plurality of adding points of the condensed water system; the control unit comprises a PLC (Programmable Logic Controller) and a pH sensor, the pH sensor is used for monitoring the pH value of condensed water at each feeding point, the PLC is in signal connection with the pH sensor, the online conductivity meter, the regulating valve and the flow meter, and the control unit is used for realizing dynamic flow distribution.

The invention discloses an electrodeionization system intelligent regulation and control method for a hydrogen conductivity meter, which is used for evaluating and intelligently regulating and controlling the structure state and the working state of an electrodeionization system, and comprises the following steps: carrying out automatic working mode parameter identification on the electrodeionization system based on a random subspace identification algorithm and a grid clustering algorithm; the structural state of the electrodeionization system is evaluated and intelligently regulated and controlled based on the automatic working mode parameter recognition result; based on the fact that the structural state of the electrodeionization system is evaluated as healthy or the structural state of the electrodeionization system is evaluated as healthy after intelligent regulation and control, the working state of the electrodeionization system is intelligently regulated and controlled; the working state affects the cation removal efficiency of the electrodeionization system and is related to the resin capacity of a concentrated water chamber, the resin capacity of a fresh water chamber, the ratio of the sectional area to the height of the concentrated water chamber, the ratio of the sectional area to the height of the fresh water chamber, membrane stack voltage, membrane stack current and module inlet water flow. The invention further discloses a system, electronic equipment and a computer readable storage medium.

The invention discloses a method and a system for measuring an electrode constant of an oil conductivity valuing device, relates to the technical field of measurement, and breaks through the limitation of roughly taking an average value of an area of a polar plate traditionally by constructing an actual conductance cell model and defining parameter information, accurately deduces a conductance cell constant, and reversely calculates an effective relative area to determine the electrode constant. According to the method, the coaxial annular structure characteristics are attached, the influence of the edge effect and electric field line diffusion is avoided, and electrode constant calculation is more scientific and rigorous. Therefore, the accuracy of the constant value of the oil conductivity standard substance is guaranteed, a reliable reference is provided for verification and calibration of an oil conductivity meter, an effective oil conductivity measurement result is ensured, the electrostatic accident risk is reduced from the source, and the oil fuel quality and safety management and control are enhanced. The problems that an existing coaxial annular cylinder type electrode conductance cell is not strict in constant calculation and low in standard value credibility are effectively solved, and the electrode constant measurement accuracy of the oil conductivity valuing device is remarkably improved.

The utility model relates to the technical field of application of sodium ion exchangers, in particular to a system for automatically controlling operation of a sodium ion exchanger on line, and aims to solve the problems that in the current soft water preparation process of water treatment, due to the fact that process parameters are not accurately and timely monitored and resin layers are extremely easy to be disordered, the operation is inconvenient and the like. Generally, the waste of new backwashing water is serious, the exchange capacity of equipment is insufficient, and finally, the overall efficiency of the sodium ion exchanger for preparing soft water for water treatment is relatively low. The system is mainly composed of a pneumatic control valve, a turbidity electromagnetic valve, a turbidity meter, a turbidity meter sampling point, a conductivity meter sampling point and the like, flow and turbidity are automatically controlled through the pneumatic control valve, a backwashing node is monitored and controlled on line through conductivity, and the purpose of comprehensively improving efficient operation of the softener is achieved. And the unmanned operation efficiency and stability of the sodium ion exchanger in the circulating water pump house are effectively improved.

The invention relates to the technical field of geotechnical engineering reinforcement, in particular to an intelligent grouting system based on MICP and a construction method. The grouting system comprises a stratum pre-analysis module, a dynamic grouting execution module and a real-time monitoring and feedback module. The stratum pre-analysis module performs three-dimensional permeability coefficient surveying and mapping and divides three types of treatment areas; the dynamic grouting execution module comprises segmented grouting pipes driven by an electrically-arranged sliding rail, and the segmented grouting pipes are lowered to designated coordinates through a nozzle at the interval of 5 m; and the real-time monitoring and feedback module integrates a pH sensor, an online monitoring module of a conductivity meter and a flowmeter linked with the pressure pump and is used for forming a closed-loop control loop of sensing detection, intelligent calculation and adjustment execution. The calcium ion concentration and the soil layer permeability are monitored in real time, and the grouting pressure and mode are automatically adjusted, so that the reinforcement uniformity is improved, the construction efficiency is improved, and the pipeline blockage risk is reduced.

The utility model provides a sample water control system for a hydrogen conductivity measuring system, which comprises a main electric regeneration ion exchanger and a standby electric regeneration ion exchanger which are arranged in parallel, the main electric regeneration ion exchanger and the standby electric regeneration ion exchanger are respectively connected with a chemical sampling water pipeline, an electromagnetic valve is arranged between the electric regeneration ion exchanger and the chemical sampling water pipeline, and the rear side of the electric regeneration ion exchanger is sequentially connected with a flow transmitter, a pressure transmitter and a first electric control valve; and the first electric control valve is connected with the hydrogen conductivity meter. According to the utility model, the two electric regeneration ion exchangers are used for replacing traditional cation exchange resin, and when a control system judges that the measured value of the hydrogen conductivity instrument exceeds the standard or the change speed of the measured value exceeds the limit, the standby electric regeneration ion exchanger is automatically switched to operate; and judging whether the ion exchanger fails or the water quality exceeds the standard according to the actual situation.

The utility model provides an automatic cleaning water index monitoring device for a CO2 washing tower. The automatic cleaning water index monitoring device comprises a washing tower body, the waste gas pipeline is vertically arranged in the center of the upper end of the washing tower body; a waste gas inlet is formed in the edge of the upper end of the washing tower body, at least one cleaning water discharging pipeline and one cleaning water input pipeline are arranged on the outer wall of the bottom of the washing tower body, the CO2 washing tower is adopted to automatically monitor the cleaning water index device, and a monitoring frame in the washing tower body is driven by a driving cylinder to move up and down in a reciprocating mode; the monitoring frame moving up and down in a reciprocating mode can comprehensively monitor cleaning water, the monitoring precision is improved, efficient detection is carried out through a turbidity detector and a conductivity instrument arranged on the monitoring frame, when data reach a set value, an electric signal is sent to a digital display control panel, the digital display control panel controls an electromagnetic valve to be opened, and then the cleaning water is monitored. Cleaning water is introduced and discharged, so that the cleaning water meets the monitoring requirement, and the CO2 cleaning effect is ensured.

The invention provides a device for detecting a cadmium chloride thin film based on a conductivity meter and a detection method thereof, and relates to the field of solar thin film cells. Comprising a dissolving tank, a weight block and a sealing ring, the bottom of the dissolving tank is provided with a first opening which can be in contact with a cadmium chloride film, and the top of the dissolving tank is provided with a second opening through which a conductivity meter can enter and exit; the sealing ring is arranged at the first opening, and the weight bearing block is connected with the outer wall of the dissolving tank. The detection method comprises the following steps: adding quantitative deionized water into the dissolving tank, and testing the conductivity of liquid in the dissolving tank by using a conductivity meter after the cadmium chloride film in the dissolving tank is dissolved; the cadmium chloride concentration corresponding to the conductivity is calculated through a cadmium chloride concentration-conductivity curve graph, and the thickness of the cadmium chloride thin film at the sampling point is calculated based on the amount of deionized water added into the dissolving tank and the area of the cadmium chloride thin film in the dissolving tank; the device and the method are low in detection cost, short in time and high in precision.

The utility model discloses a micro-arc oxidation device and a semiconductor film preparation system, and the micro-arc oxidation device comprises an electrolytic tank, a pulse power supply, a monitoring module and a controller. The electrolytic tank is provided with a stirrer and an ultrasonic generator, and a constant-temperature cooling module is mounted on the side wall of the electrolytic tank; the pulsed power supply is mounted on one side of the electrolytic tank; the cathode of the pulsed power supply is connected with the electrolytic tank; the monitoring module comprises a conductivity probe, a photometer probe, a conductivity meter and an ultraviolet spectrometer; the controller is electrically connected with the constant-temperature cooling module and the monitoring module. The change of solute in the electrolyte is monitored through the ultraviolet spectrograph and the conductivity meter, accurate control over the concentration of the electrolyte and the nano-particles in the electrolyte is achieved, reaction conditions and reaction parameters can be automatically detected and regulated, accurate regulation and doping of the nano-particles in the semiconductor film growth process are achieved, and the yield of the semiconductor film is improved. The operation is simple and convenient, the controllability is strong, and the yield is high.

The invention discloses a device and method capable of dynamically monitoring heavy metal polluted water and soil repaired through an EICP technology, the device comprises a support, three monitoring systems and a grouting system, the first monitoring system comprises a measuring box, a top cover, a motor, a grouting hole, a transmission shaft, a gear, an inner gear ring, a stirring sampling pipe, a supporting rod, a sheet type multifunctional sensor and a sampling opening; the second monitoring system comprises a liquid conveying hose, a flow control valve, a peristaltic pump, a pump pipe, a measuring box, a raw material box, a waste liquid box, a conductivity meter and a magnetic stirrer; the third monitoring system comprises a support frame, a transfusion hose, a flow control valve, a peristaltic pump, a pump pipe, a centrifugal filter, a measuring box, a raw material box, a waste liquid box and an atomic absorption spectrophotometer; the grouting system comprises a urease solution barrel, a urea solution barrel, a three-way pipe and a suction pump. Biological, chemical and physical indexes in the repairing process can be monitored in real time, and the repairing process can be known.

The utility model relates to the technical field of environmental protection, in particular to an STRO membrane experiment device which comprises a water storage tank, a liquid inlet pump, a filter element filter, an STRO membrane assembly and a control cabinet, the bottom of the water storage tank is communicated with a raw water switching valve HV-101 through a raw water pipeline, the simple STRO membrane experiment device can be used for sewage treatment experiments in a laboratory and on a project site, and the operation is simple. The water inlet flow displayed by the raw water flow meter FI-101, the water inlet conductivity displayed by the raw water conductivity meter CIT-101, the membrane water inlet pressure displayed by the pressure gauge PI-101, the concentrated water flow displayed by the concentrated water flow meter FI-201, the concentrated water conductivity displayed by the concentrated water conductivity meter CIT-201 and the produced water flow displayed by the produced water flow meter FI-301 can be accurately recorded; various operation data such as water production conductivity displayed by a water production conductivity meter CIT-301 can be used for measuring and calculating the data such as the salt removal rate and the recovery rate of the experimental device under different pressure states, and a design basis is provided for STRO membrane application.

The present application relates to the technical field of semiconductor manufacturing, in particular to a vacuum negative pressure type flux cleaning device and a cleaning method. One side of the cavity is provided with a wafer transmission window, the center of the cavity is provided with a rotating mechanism, the lower end of the rotating mechanism is connected with a motor, the upper end of the rotating mechanism is connected with a wafer carrier, the lower end of the wafer carrier is provided with a vibrating device, the upper end of the wafer carrier is provided with an optical fiber sensor and a wafer temperature sensor, the lower end of the cavity is provided with a waste pipe, one side of the waste pipe is provided with an electric conductivity meter and an optical bubble sensor, the upper side of the wafer carrier is provided with a swing arm, the swing arm is provided with a plurality of nozzles, the upper end of the cavity is provided with a vacuum interface, a nitrogen gas interface, a negative pressure sensor and a cavity temperature sensor. Compared with the prior art, the defects of the traditional vacuum negative pressure cleaning in the differential pressure control precision and temperature adaptability are solved; under the premise of ensuring micro-bump zero damage, the flux cleaning efficiency in the narrow gap advanced packaging structure is improved.

The utility model relates to an explosion-proof on-line conductivity meter which comprises an explosion-proof casing, a main control board, a conductivity sensor connector, a temperature sensor connector, a split type cable connector and a liquid crystal screen. A conductivity measurement module, a temperature measurement module, a processing module, a display module, an integrated Hart module, a key module and an infrared remote control module are integrated on the main control board; the integrated Hart module and the power supply module are connected out of the split type cable connector through a data line IO and a power line Vin. The explosion-proof on-line conductivity meter is high in system integration level and low in failure rate, infrared remote control and Hart communication support structures are added on the basis of functions of an existing explosion-proof conductivity meter, the explosion-proof on-line conductivity meter has the functions of field data display, remote control, remote centralized control and data transmission, meanwhile, the main control board is optimized, and the explosion-proof on-line conductivity meter is convenient to use. And the functions of field data display, short-distance remote control and the like are expanded.

The utility model relates to the technical field of wastewater conductivity measurement, in particular to a conductivity measurement assembly suitable for high-temperature and high-salinity wastewater, which comprises a conductivity instrument, an electrode, a flow cell, a connecting valve I, a connecting pipe I, a connecting valve II, a connecting pipe II and a three-way joint, the conductivity meter is electrically connected with the electrode, the electrode is mounted at the inner top of the flow-through cell, a bottom port of the flow-through cell is connected with the three-way joint mounted on a wastewater process pipeline through a connecting valve I, the side surface of the flow-through cell is connected with the connecting pipe I, and the connecting pipe I is connected with the flow-through cell. The first connecting pipe is connected with the second connecting pipe through a second connecting valve, and the second connecting pipe is used for guiding waste water into a recycling pool and / or a trench. By applying the conductivity measuring assembly suitable for the high-temperature and high-salinity wastewater, the conductivity of the wastewater can be accurately measured in real time, and the electrodes are not easy to damage.

The invention discloses an etching liquid additive detection device and a detection method thereof, and relates to the technical field of etching liquid additive detection.The etching liquid additive detection device comprises a workbench and a transposition assembly, an electric push rod is arranged in the center of the top of the workbench, a driving sleeve is connected to the top of the telescopic end of the electric push rod, and a rotating frame is arranged in the driving sleeve; the rotating frame is composed of a round rod in the middle and a plate body fixedly connected to the top of the round rod, an acidity meter is arranged in one end of the upper portion of the rotating frame, and a conductivity meter is arranged in the other end of the upper portion of the rotating frame. When an electric push rod drives a driving sleeve to move downwards, a driving column can move along a vertical groove of a guide groove, and when the driving column slides to the lower end of the guide groove, a rotating frame can be driven to extrude a reset spring, so that an acidometer and a conductivity meter on the two sides move downwards, and when one probe detects a sample in a container, the sample in the container can be detected by the other probe. And the other probe can extend into the cleaning cylinder to carry out flushing operation.

The invention provides a self-adaptive switching heat supply network draining and desalting system. The self-adaptive switching heat supply network draining and desalting system comprises a water inlet pipe, a cation bed, a first branch pipe, an anion bed, a second branch pipe, a mixed bed, a water outlet pipe, a first bypass, a second bypass, a third bypass and a conductivity meter, the water inlet pipe, the cation bed, the first branch pipe, the anion bed, the second branch pipe, the mixed bed and the water outlet pipe are sequentially connected; the input end of the first bypass is connected with the water inlet pipe, and the output end is connected with the second branch pipe; the input end of the second bypass is connected with the first branch pipe, and the output end of the second bypass is connected with the second branch pipe; the input end of the third bypass is connected with the second branch pipe, and the output end of the third bypass is connected with the water outlet pipe; the conductivity meter is arranged on the water inlet pipe; and determining the desalting path of the drainage of the heat supply network according to the water inlet conductivity value and different water outlet quality requirements. The method has the technical effects that different desalting paths of heat supply network drainage can be switched according to the water quality condition of inlet water and different water replenishing position requirements during actual operation, the desalting process of the heat supply network drainage and the corresponding resin regeneration process are mutually standby, the operation is simple, and the cost is saved.

The utility model discloses a hydrogenation liquid and by-product separation device in production of 2, 5-dimethyl-2, 5-hexanediol, and belongs to the field of chemical production devices. Comprising a catalyst separator (1), a concentrated head tank A (6), a concentrated head tank B (7), a conductivity meter A (10), a hexanediol pump (11), a by-product pump (12), a hexanediol evaporator (14), a by-product evaporator (19), a heat exchanger A (20), a heat exchanger B (21), a vacuum buffer tank (22), a hexanediol water return tank (24), a conductivity meter B (26) and a water return pump (27) which are connected through a pipeline, and a stop valve and / or a regulating valve are / is arranged on the pipeline. The utility model can solve the problems of increased impurities and low main content of finished products caused by manual continuous observation in the prior art, effectively reduce the manpower load and improve the product quality.

The application provides a cooling liquid recycling recovery device and a control method. The cooling liquid recycling recovery device comprises a cooling liquid recovery water tank, a liquid level meter, a first filter, a first deionization tank, a first electric conductivity meter, a first electromagnetic valve, a second electromagnetic valve, a second deionization tank, a second electric conductivity meter and a test bench water tank. One inlet of the cooling liquid recovery water tank is communicated with a fuel cell engine drain port through a connecting pipeline, the liquid level meter is arranged on the cooling liquid recovery water tank, the first filter, the first deionization tank and the first electric conductivity meter are sequentially arranged on the connecting pipeline at the outlet of the cooling liquid recovery water tank, the first electromagnetic valve is arranged on the connecting pipeline with the test bench water tank, and the second electromagnetic valve, the second deionization tank and the second electric conductivity meter are sequentially arranged on the connecting pipeline at the other inlet of the cooling liquid recovery water tank. The application avoids waste of the cooling liquid, thereby achieving the purposes of energy saving and cost reduction.

The utility model discloses an intelligent self-adaptive electrodeionization system for a hydrogen conductivity meter. The intelligent self-adaptive electrodeionization system comprises an electrodeionization system main body and a structure sensor group, a quantification unit and a real-time regulation and control unit; the structural sensor group is arranged on the electrodeionization system main body and is used for acquiring structural dynamic response; the quantifying unit comprises a volume measuring element, a sectional area measuring element and a height measuring element; the volume measuring element is used for determining resin capacities of the concentrated water chamber and the fresh water chamber; the sectional area measuring element is used for determining sectional areas of the concentrated water chamber and the fresh water chamber; the height measuring element is used for determining the height ratio of the concentrated water chamber to the fresh water chamber; the real-time regulation and control unit comprises a constant-voltage unit, a variable-voltage unit, a constant-current unit, a variable-current unit, a constant-flow unit and a variable-flow unit which are respectively used for stabilizing and / or changing the membrane stack voltage, the membrane stack current and the water inlet flow of a module inlet. The utility model further discloses a hydrogen conductivity meter which comprises the intelligent self-adaptive electrodeionization system and a conductivity complete machine, and the conductivity complete machine comprises a conductivity electrode and a transmitter.

The invention discloses a conditioning dehydration system for a biochemical mud-water mixture and a control method thereof, an ORP instrument and an aeration disc are arranged in a relay mud storage tank, and a remote control system controls aeration of the relay mud storage tank according to information fed back by the ORP instrument; a conductivity meter is arranged in the flocculant preparation box, and the remote control system accurately controls the concentration of the agent according to information fed back by the conductivity meter; the relay sludge storage tank is connected to the biochemical tank through a pipeline with a delivery pump and a flow meter and connected to the mixer through a pipeline with a sludge inlet pump and a flow meter, the flocculant preparation box is connected to the mixer through a pipeline with a chemical inlet pump and a flow meter, and the remote control system controls the sludge concentration meter according to information fed back by the flow meter and the sludge concentration meter. And the operation of related pumps is controlled, and the mud-water mixture and the medicament are conveyed into the mixer according to an accurate proportion. The device has the characteristics of high automation degree and capability of realizing automatic adjustment under a fluctuating working condition, and realizes self-adaptive control of medicament addition and sludge concentration.

The invention provides a composite solidified soil anti-permeability performance enhancing method, and belongs to the technical field of soil solidification. Through particle screening or mixing treatment, a nano silicon dioxide modified curing agent solution is prepared, and the ion concentration and the pH value are controlled through a conductivity meter and a pH meter; ultrasonic oscillation equipment is adopted to assist mixing, a moisture content-compactness response matrix is established to dynamically adjust power density, molecular dynamics simulation software is utilized to construct a soil pore structure model, an evolution process is simulated through a Monte Carlo method, and a pore connectivity index is calculated to guide compaction treatment intensity adjustment. A multi-factor accelerated aging test system is established to regularly measure the change of the permeability coefficient and construct an attenuation matrix, and when the attenuation rate exceeds a threshold value, an early warning mechanism and a reinforcing treatment program are started, so that the technical problem that a systematic process parameter regulation and control method is lacked in the solidified soil preparation process is solved.

The invention provides a secondary reverse osmosis concentrated water recovery automation device, and relates to the field of industrial water treatment concentrated water recovery and utilization. The secondary reverse osmosis concentrated water recovery automation device comprises a tank body used for collecting concentrated water, an online conductivity meter and an online pH meter, the online conductivity meter and the online pH meter are installed on the tank body, and sensor probe parts of the online conductivity meter and the online pH meter are located in the concentrated water at one end of the tank body. The drainage end of the tank body sequentially communicates with a water pipe A, a water pump, a water pipe B and a pneumatic three-way valve; according to the two-stage reverse osmosis concentrated water recovery automation device, the water collecting cylinder is temporarily stored in different cavities to avoid mixing of concentrated water with different water qualities, the PLC linkage detection instrument is used for precisely grading and dividing, high-quality concentrated water flows back to the first-stage reverse osmosis, and suboptimal concentrated water is recycled to a two-stage reverse osmosis process end, so that water resource waste caused by unified deep treatment or direct discharge of the concentrated water is greatly reduced; the overall concentrated water recovery rate is improved.

The application discloses a silver powder washing device, and particularly relates to the field of precious metal smelting, which comprises a main body, a rotating part, a liquid circulation unit, a detection unit and a control unit; the liquid circulation unit comprises a plurality of liquid storage tanks and a liquid circulation module, and can realize the recovery and utilization of cleaning liquid in an inverse gradient; the detection unit detects the cleaning liquid in the main body in real time through a circulating pump, a circulating pipeline and an electric conductivity meter; the control unit judges the current cleaning stage, controls the liquid circulation module to supply liquid and recover in an inverse flow, and can adjust the washing mode of the inner cylinder according to the progress state of the current cleaning stage. The application realizes multi-stage inverse flow cleaning, can switch the washing mode corresponding to the cleaning state, and can perform high-frequency disturbance on the silver powder when passivation occurs, so that the impurity coating layer is damaged, the silver powder cleaning efficiency is improved, and the consumption of acid liquid and the discharge of waste liquid are reduced.

The utility model provides a device for detecting chloride ions in methanol, which is characterized in that a synthesis gas pipeline is communicated with a washing tower, the tower top of the washing tower is sequentially communicated with a tower top condenser and a return tank through pipelines, the return tank is communicated with the tower top of the washing tower through a pump and a pipeline, and a first detection pipeline is led out of the tower top of the washing tower to form a loop with the washing tower; a first conductivity meter is arranged on the first detection pipeline, a second detection pipeline is arranged on a discharging pipeline leading-out pipeline of the tower top condenser and the return tank, and a second conductivity meter is arranged on the second detection pipeline. According to the utility model, the working performance and effect of the washing tower are judged through the conductivity. And two conductivity detection points are arranged on the tower top backflow piping and the liquid blanking pipeline of the washing tower, so that the detection accuracy is ensured. A section of U-shaped pipe is arranged on the backflow pipeline, the first detection pipeline is communicated with the bent pipe section of the U-shaped pipe, the heat exchanger carries out detection after water vapor separation, the conductivity can be measured after gas-liquid separation, and the detection accuracy is improved.

The utility model relates to the technical field of emulsion explosive detection, and discloses an emulsion explosive stability detection device which comprises a workbench, a conductivity meter and a constant temperature heating device, the conductivity meter and the constant temperature heating device are arranged on the workbench, the constant temperature heating device comprises a connecting plate arranged on the workbench, the connecting plate is provided with a concave placing groove, and the connecting plate is provided with a plurality of grooves. A constant-temperature heating plate is arranged on the inner wall of the placement groove; an electric push rod is fixedly installed on one side of the workbench, a supporting plate is fixedly installed on an output rod of the electric push rod, and a temperature sensor is fixedly installed on the supporting plate. According to the detection device disclosed by the utility model, the constant-temperature heating device and the temperature sensor are used, so that the precipitation amount of free ammonium nitrate of an emulsion explosive matrix is not influenced by the soaking temperature, and meanwhile, the emulsion explosive is soaked in the optimal water temperature, so that the precipitation amount of the ammonium nitrate can ensure that the detection of the conductivity has an obvious measured value; and the accuracy of reflecting the stability of the emulsion explosive by the conductivity method is improved.

The utility model discloses a special alternating current resistance box for detecting a conductivity meter, which relates to the technical field of alternating current resistance boxes and comprises a resistance box main body, wiring grooves are arranged on the back of the resistance box main body at equal intervals, a wiring mechanism is arranged on the outer side of the resistance box main body, and the wiring mechanism comprises a bearing assembly and a pressing assembly. The bearing assembly and the pressing assembly are used in cooperation, the bearing assembly comprises rotating shafts, the rotating shafts are symmetrically and rotatably connected to the outer side of the resistance box body, and rotating ends are fixedly connected to the outer sides of the two rotating shafts. According to the alternating-current resistance box special for detecting the conductivity meter, due to the arrangement of the ground wiring mechanism, it can be ensured that electric wires are arranged in the wire grooves of the bearing columns in order, the electric wires are kept stable and prevented from loosening or falling off through the tension of the tension springs, the situation that the electric wires are not attached due to the toughness of the electric wires is avoided, the structure is simple, and the practicability is high. And the practicability is high.

Dilute chemical solution production device (1) has a plunger pump and a chemical solution supply pipe (3) that supply a chemical solution S from a chemical solution reservoir. The end of the chemical solution supply pipe (3) serves as an injection point 11 for the chemical solution (S). The chemical solution supply pipe (3) is inserted to an approximately central position in the radial direction of an ultrapure water passage (12), which is a first pipe, via a bore-through joint (13). Conductivity meter (14) as a conductivity measuring meter is provided on the downstream side of the bore-through joint (13), which serves as the injection point (11), and is connected to a controller so that the plunger pump (4) can be controlled in accordance with the measured value of the conductivity meter (14).

A current density measuring apparatus includes an underwater electric field sensor including a pair of electrode portions and a potential difference measuring unit to measure a potential difference between the pair of electrode portions without contacting a test object placed in water, a conductivity meter to measure a conductivity in the water, and a controller configured or programmed to acquire a current density of a current flowing from the test object into the water using the potential difference measured by the underwater electric field sensor and the conductivity measured by the conductivity meter.

The utility model relates to the technical field of conductivity meters, and discloses a conductivity meter capable of detecting water produced by a single DTRO membrane. Comprising a conductivity meter and a protective sleeve, the protective sleeve is clamped to the outer side of the conductivity meter and used for protecting the conductivity meter, a grip is fixed to one side of the protective sleeve, and a protective shell is arranged on the outer side of the conductivity meter; the mounting plate is fixed on one side of the conductivity meter, a first mounting rack is fixed on one side of the mounting plate, the conductivity meter can be protected through the protective sleeve, abrasion to the conductivity meter caused by collision is reduced, the second mounting rack and the protective plate are quickly reset through the action of the spring and the damper, and the conductivity meter can be prevented from being damaged. According to the conductivity meter, collision impact force borne by the conductivity meter is reduced, the threaded rod ascends and descends in the supporting rod, the mounting rod and the supporting frame are ascended and descended, and therefore the effect of adjusting the supporting height of a probe of the conductivity meter is achieved, and subsequent detection on DTRO single membrane produced water with different heights is facilitated.

The invention relates to the technical field of dosing devices, and discloses a multi-sensor fusion type slurry concentration self-adaptive dosing control device which comprises a treatment barrel, and a control host is fixedly mounted on the side wall of the treatment barrel; a slurry concentration detection mechanism, a dispensing control mechanism and a stirring and feeding mechanism; the slurry concentration detection mechanism is arranged, the conductivity meter can be used for emitting current through the emitting end, and the receiver receives the current through the receiving end, so that the concentration of slurry before the slurry is added into the treatment barrel is detected, and the ultrasonic receiving head can be used for receiving ultrasonic waves and emitting the ultrasonic waves to penetrate through a slurry-water mixture. The ultrasonic transmitting head can be started to transmit ultrasonic waves by making contact with the inductive switch in the mounting groove through the trigger piece, the concentration of slurry in the treatment barrel can be detected in multiple aspects through rotation of the mounting barrel, and the average value is calculated through the control host, so that the concentration of the slurry in the treatment barrel is detected more accurately; therefore, chemicals can be quantitatively added according to the specific concentration of slurry.