282 results about "PH meter" patented technology

The invention provides a control system for preparing manganous-manganic oxide from impurity-containing manganese liquid. Comprising a synthesis kettle; the feeding metering pump set comprises a liquid caustic soda metering pump and a pre-synthesis liquid metering pump; the valve group comprises a discharge valve, a steam valve and a pure water valve; the pH meter is arranged on the synthesis kettle; a first flow meter; a second flow meter; the M01 stirring motor is arranged on the synthesis kettle and is used for mixing solutions in the kettle; the M02 stirring motor is arranged on the overflow liquid receiving tank; the air blower is arranged on a pipeline connected with the synthesis kettle; the first liquid level meter is arranged on the synthesis kettle; the second liquid level meter is arranged on the overflow liquid receiving tank; and the thermometer is arranged on the synthesis kettle and is used for monitoring the temperature of the solution in the synthesis kettle. The system further comprises a central controller. By means of the system, the feeding state of the synthesis kettle can be automatically regulated and controlled, monitoring, debugging and alarming of the preparation process are facilitated, meanwhile, feeding of feeding liquid is stable, the temperature of the synthesis kettle is accurately controlled, and the fluctuation range of the pH value is small.

The invention discloses a regulation and control system and method of a pH meter in a waste lithium battery recovery process, and relates to the technical field of waste battery recovery treatment. The system comprises a central control module, a liquid caustic soda adjusting device and a liquid acid adjusting device, wherein a pH meter measures the pH value of a leaching solution of a leaching-stage reaction kettle in a waste lithium battery recycling process in real time; the central control module compares the pH value, measured in real time, of the leaching liquid in the leaching-stage reaction kettle with the pH value preset range of the leaching stage, acid liquid or alkali liquid is added into the leaching-stage reaction kettle according to the comparison result, and the pH value of the leaching liquid is adjusted to be within the pH value preset range of the leaching stage; the central control module can also identify interference factors measured by the pH meter and compensate the slope according to the current temperature so as to compensate the pH value, measured by the pH meter, of the leachate. According to the method, accurate control over the pH value in the leaching process can be effectively achieved, the recovery efficiency and quality of the waste lithium batteries are improved, and the production cost is reduced.

The invention discloses a detector for garden soil quality detection, and belongs to the technical field of garden soil detection.The detector comprises a detection bottle, the surface of the detection bottle is movably connected with a bottle cap, a PH meter is arranged in the bottle cap, the surface of the bottle cap is fixedly connected with a liquid adding pipe, and the surface of the liquid adding pipe is movably provided with a pipe cap; a working rod is connected to the interior of the bottle cap through a reciprocating assembly, mixing blades are fixedly connected to the surface of the working rod, and a lower connecting rod is fixedly connected to the inner wall of the bottle cap. When the detector for garden soil quality detection works, a soil sample and a reagent are poured into a detection bottle, then a bottle cap is screwed, a pressing plate on the surface of the bottle cap is pressed, then a pressing rod pushes a stress plate, and at the moment, the stress plate, a working rod and a mixing blade rotate in the detection bottle in a reciprocating manner under the action of the pressing rod and a torsion spring; compared with one-way rotation of the mixing blades, the reciprocating rotation mixing blades can better mix the materials, so that the detection result of the PH meter is more accurate.

The invention relates to the technical field of mine acid wastewater treatment, in particular to a method for treating acid wastewater through a high-density slurry method and a control system. The method specifically comprises the following steps: executing the following operations through a control device: receiving a real-time pH value fed back by a pH meter in a reaction device and liquid level data of a liquid level meter; the real-time pH value and the liquid level data are input into a preset reflux ratio calculation model, and the reflux ratio calculation model calculates the lime adding amount, the flocculating agent adding amount and the sludge reflux flow through a simulated annealing algorithm; and controlling the operation parameters of the delivery pump, the reflux pump and the stirring device according to the calculation result, and maintaining the pH value in the reaction device within a set interval. The pH value and liquid level data are monitored in real time, the lime adding amount, the flocculating agent adding amount and the sludge backflow flow are dynamically optimized in combination with the simulated annealing algorithm, and the pH value in the reaction device is maintained; the heavy metal concentration reaches the standard; the effluent quality is ensured to meet the standard; and normal operation of treatment facilities is ensured.

The utility model belongs to the technical field of heat exchanger cleaning, and discloses a heat exchanger cleaning device which comprises a box body, a circulating system and an acidity meter, acid liquid is contained in the box body, the circulating system is connected with the box body and a heat exchanger and can enable the acid liquid in the box body to enter the heat exchanger in a circulating mode, and the acidity meter comprises a probe and a display screen. The probe is arranged in the box body and used for detecting the concentration of the acid liquid in the box body, and the display screen is used for displaying the real-time acid concentration of the acid liquid. According to the heat exchanger cleaning device provided by the utility model, the acid liquid is used for circularly cleaning the heat exchanger, so that the heat exchanger is prevented from being disassembled and assembled, and the working difficulty of workers is reduced; it is ensured that the acid liquid can chemically react with scale every time the acid liquid enters and exits the heat exchanger, effective cleaning is achieved every time the acid liquid enters and exits the heat exchanger, and the cleaning efficiency of the heat exchanger is effectively improved.

The invention provides an analysis method for measuring the pH value of an aqueous solution by using methyl red, and belongs to the technical field of pH value measurement. The analysis method comprises the following steps: mixing a standard solution and a methyl red solution with different pH values to obtain a color developing solution, then detecting an absorbance curve of the color developing solution by utilizing a detection device, reading absorbance, and drawing a working curve by taking the pH value of the color developing solution as a horizontal coordinate x and the absorbance as a vertical coordinate y; mixing a to-be-detected water sample and the methyl red solution, detecting to obtain an absorbance value, substituting the absorbance value into the working curve, calculating the pH value of the to-be-detected water sample, and displaying the pH value of the to-be-detected water sample. According to the analysis method, the acid-base indicator is used as an accurate pH meter, and the pH value of the solution can be measured on line, so that the application range of the acid-base indicator is widened.

The invention discloses a hot dry rock heat removal open hole well wall physical and chemical reaction simulation device which comprises a constant-temperature heating water tank, the constant-temperature heating water tank is communicated with an acid-base water storage tank through a first pipeline, a corrosion-resistant pump and a stop valve are installed on the first pipeline, and a detection head of an industrial PH meter is connected with the constant-temperature heating water tank. The constant-temperature heating water tank is communicated with an inlet of the flushing device through a second pipeline, an adjustable booster pump and a radar flow meter are mounted on the second pipeline, an outlet of the flushing device is communicated with the constant-temperature cooling water tank through a third pipeline, and the constant-temperature heating water tank is communicated with the constant-temperature cooling water tank through a fourth pipeline; four rock sample cavities are circumferentially distributed in the washing device, the four rock sample cavities are distributed in a cross structure and used for containing rock samples, a water flow channel is defined by the four rock samples, water in the second pipeline is discharged from the third pipeline through the water flow channel, and a heating resistor is wound around the periphery of the washing device. And the heating resistor is used for supplementing heat to the rock sample.

AI-Powered PH Meter with Smart Alerts

The invention discloses an automatic Fenton dosing system, relates to the technical field of wastewater treatment, and aims at solving the problem that an existing Fenton system needs to easily cause waste of chemicals and human resources. The technical scheme is characterized in that the system comprises a bottom plate, an automatic dosing control cabinet, a wastewater treatment device, a chemical dosing device, an aeration device, a stirring device, a first pH meter and a second pH meter; by arranging the automatic dosing control cabinet, the first pH meter and the second pH meter, the pH change of water quality can be detected in real time, and information is transmitted to the automatic dosing control cabinet, so that the automatic dosing control cabinet controls the dosing device to add chemicals into the wastewater treatment device according to the information feedback condition; and the dosing amount of the medicament is regulated in a targeted manner, so that the conventional manual dosing control manner is replaced, the dosage of the medicament can be accurately controlled, the medicament loss is reduced, the manpower resource is saved, and the operation cost of a sewage plant is reduced.

The utility model discloses an efficient energy-saving acid supplementing device for laboratory acid gas-liquid mixing reaction, which comprises a reaction tank, the top of the reaction tank is connected with a gas delivery pipe and an acid burette, the lower end of the gas delivery pipe extends into the reaction tank, and a stirring mechanism is arranged at the lower end of the gas delivery pipe. A knob of the acid burette is in transmission connection with the rotary steering engine, a pH meter is arranged in the reaction tank and is electrically connected with the display screen, and the rotary steering engine and the display screen are both electrically connected with the controller; according to the scheme, reaction liquid is uniformly stirred while reaction gas is introduced; reaction gas is uniformly distributed in reaction liquid, so that the mass transfer efficiency and the reaction efficiency are improved; meanwhile, an automatic pH regulation and control system is formed by the acid burette, the rotary steering engine, the pH meter and the controller, so that the pH can be automatically and continuously monitored and controlled; in addition, according to the scheme, gas kinetic energy can be recycled, and therefore the energy utilization efficiency is improved.

The application discloses an intelligent pH adjusting device for inner cooling water and an application method thereof. The intelligent adjusting device comprises a pH meter before dosing, a conductivity meter before dosing, a control assembly, a metering pump, a lye tank, a conductivity meter after dosing and a pH meter after dosing. The output ends of the pH meter before dosing, the conductivity meter before dosing, the conductivity meter after dosing and the pH meter after dosing are connected with the control assembly. The output end of the lye tank is communicated with a circulating loop of the inner cooling water. The metering pump is installed on the output pipeline of the lye tank and the control end thereof is connected with the control assembly. The application can realize closed-loop control of adding lye in the circulating loop of the inner cooling water based on the pH values before and after dosing and the conductivities before and after dosing, can ensure the accurate amount of lye added when the water quality fluctuates, avoids the problems that the actual controlled pH value does not participate in control, the lye is not accurately added when the water quality fluctuates and the operation and maintenance rely on the experience of workers, and thus realizes precise intelligent automatic control of the pH of the inner cooling water.

The utility model relates to a jacket type reaction kettle. Comprising a kettle body and a jacket sleeved on the peripheral side of the kettle body, the kettle body is vertically arranged, a liquid outlet is formed in the bottom of the kettle body, and a cleaning opening, a feeding opening, a thermometer opening, a standby opening, a chlorine opening, a nitrogen opening, a DI inlet, a pH meter opening, a liquid level meter opening and an exhaust opening are further formed in the kettle body; a jacket inlet is formed in the upper part of the jacket; one part of DI water in the DI water tank enters the kettle body, the other part of DI water is connected with the cleaning port, the rest part of DI water enters the jacket, and the jacket outlet is connected with the DI water tank; the chlorine water tank is connected with the chlorine opening; the nitrogen tank is connected with the nitrogen port; a spin dryer is connected with the liquid outlet; and an exhaust pipeline is mounted on the exhaust port. The reaction kettle is suitable for various chemical reaction processes, and can meet the complex process requirements of heating, heat preservation, cooling and the like in the reaction process.

The utility model relates to a PH meter protection device which comprises a protection shell with two open ends, the protection shell comprises a first protection sleeve and a second protection sleeve which are coaxially arranged and communicated, and a fixing device used for fixing a PH meter on the protection shell is installed at the end, away from the second protection sleeve, of the first protection sleeve. A plurality of groups of liquid flowing ports are formed in the first protective sleeve in the length direction of the first protective sleeve, each group of liquid flowing ports comprises a plurality of through holes distributed in the circumferential direction of the first protective sleeve, and when the PH meter protective sleeve is used, the PH meter protective sleeve can play a role in protecting a PH meter, so that the service life of the PH meter can be prolonged; and secondly, the measurement accuracy of the PH meter in the use process can be ensured.

1. Name of the Design Product: pH Detector. 2. Use of the Design Product: For detecting pH value. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The invention provides a method and a system for accurately controlling the pH value of single-tank outlet light salt brine in multiple groups of electrolytic tanks, comprising multiple groups of electrolytic tanks, a tank inlet brine branch pipe is connected with a diluted hydrochloric acid branch pipe, the diluted hydrochloric acid branch pipe is provided with a diluted hydrochloric acid flowmeter and a diluted hydrochloric acid regulating valve, and the tank outlet light salt brine branch pipe is connected with a light salt brine sampling branch pipe. Each light salt brine sampling branch pipe is provided with a light salt brine sampling program control valve and a simulation assignment module, the light salt brine sampling branch pipes are connected with a light salt brine sampling header pipe, and the light salt brine sampling header pipe is provided with a sampling adjusting valve, a sampling flow meter and a pH meter; the diluted hydrochloric acid flow meter, the diluted hydrochloric acid adjusting valve, the light salt brine sampling program control valve, the sampling adjusting valve, the sampling flow meter and the pH meter are all connected into a DCS system, and the diluted hydrochloric acid adjusting valve adjusts the opening degree according to the detection value of the pH meter. Precise adjustment and control of pH of light salt brine discharged from each single cell in multiple groups of electrolytic cells are realized through a pH meter and a control loop thereof, the anode efficiency and the quality of a liquid caustic soda product are improved, and the production stability is improved.

To provide a hypochlorous acid water generator capable of stabilizing the pH value of generated hypochlorous acid water.SOLUTION: The control unit 81 calculates a deviation between the pH value of the aqueous solution in the water storage tank 6 detected by the pH meter 7 and the target pH value, determines the amounts of the sodium hypochlorite aqueous solution to be supplied to the raw water flowing through the first conduit 12 and chlorine to be supplied to the raw water flowing through the second conduit 13 so as to bring the calculated deviation close to 0, and supplies the sodium hypochlorite aqueous solution and chlorine.SELECTED DRAWING: Figure 1

The utility model designs a measuring cell of an industrial pH meter, which comprises a measuring cup and a top cover, and is characterized in that the measuring cup is made of porous alumina ceramics, holes of the porous alumina ceramics are of through hole structures, the hole diameter is 70 microns, the top cover is made of rubber, and a round hole is formed in the center of the top cover. The porous alumina ceramic measuring cup has the advantages that during measurement, hydrogen ions and other soluble ions in measured liquid can penetrate through the through holes, with the diameter of 70 microns, of the porous alumina ceramic measuring cup to enter the cavity of the measuring cup, and most solid particles cannot penetrate through the porous alumina ceramic to enter the cavity of the measuring cup. Due to the fact that direct contact between insoluble substances and the glass electrode is avoided, the purpose of protecting the electrode is achieved on the premise that pH value measurement is not affected. The porous aluminum oxide ceramic has the characteristics of high temperature resistance, corrosion resistance and stable chemical property, can be repeatedly used after being cleaned, and is relatively low in use cost.

The simple device for testing the pH value of the rural well water comprises a transparent bottle body used for containing the well water, an opening is formed in the top of the bottle body, a bottle cap is detachably connected to the opening in a sealed mode, and a pH value testing liquid releasing mechanism is arranged at the top in the bottle cap; the pH value test liquid release mechanism comprises a clamping assembly and an elastic stabbing rod assembly, a test liquid containing block is detachably clamped in the clamping assembly, the elastic stabbing rod assembly comprises a stabbing rod, in an initial state, the test liquid containing block is located below the stabbing rod, and the test liquid containing block is provided with a stabbing structure on a movable path at the tail end of the stabbing rod. The pH value testing liquid is released into well water by puncturing the testing liquid accommodating block, the pH value of the well water can be preliminarily judged through the colorimetric card after the pH value testing liquid is uniformly mixed, the color development result is simple, visual and easy to understand, the operation steps are simple and rapid, a high-quality electronic pH meter is not needed, and the cost is low. And the detection requirements of people dispersion, low frequency and low precision in vast rural areas are met.

The invention provides a full-automatic liquid preparation device, a liquid preparation method and a computer readable storage medium, and belongs to the technical field of chemical liquid preparation. The device comprises a main rack and an operation surface system integrated on the main rack, wherein a solution storage unit, a solution mixing unit, a conveying unit, a detection unit, a valve unit, a control unit and a pipeline system are integrated on the operation surface system; the solution storage unit comprises a standard barrel for storing a solution; the liquid mixing unit comprises a liquid mixing box, and a magnetic pump for stirring mixed liquid is arranged in the liquid mixing box; the conveying unit comprises a diaphragm pump for extracting the high-concentration stock solution, and the diaphragm pump is connected with the standard barrel and the liquid mixing box through a pipeline system; the detection unit comprises a pulse type liquid level sensor and a PH meter; the valve unit comprises a water inlet valve and a drain valve; the control unit is used for inputting liquid preparation parameters and controlling all the components to work cooperatively. The full-process liquid preparation is automatic, manual intervention is not needed, the safety risk of manual liquid preparation is avoided, and meanwhile the liquid preparation efficiency is improved.

The utility model provides an all-dimensional cleaning device for a PH meter. The all-dimensional cleaning device for the PH meter solves the problems that existing cleaning equipment is not comprehensive and thorough in PH meter cleaning, low in efficiency and the like. The device comprises a driving mechanism located on the upper portion and a cleaning mechanism located on the lower portion, the driving mechanism comprises a translation assembly, a lifting assembly is driven on the translation assembly, a rotating assembly is driven on the lifting assembly, and a PH meter is arranged on the rotating assembly; the cleaning mechanism comprises a cleaning tank, a spiral spray pipe is arranged in the cleaning tank, a spray-washing space is formed in the inner circumference of the spiral spray pipe, the spiral spray pipe is provided with a plurality of nozzles facing the spray-washing space, and the PH lowering meter extends into the spray-washing space. The all-dimensional cleaning device for the PH meter has the advantages of being efficient, comprehensive, accurate and automatic, the cleaning quality of the PH meter can be effectively improved, the manual operation cost is reduced, the overall efficiency of a production line is improved, and good adaptability and reliability are achieved.

The utility model discloses a button formula pH meter, including work table, be provided with track on work table, the track is slidably installed with support frame, and the support frame end clamping has test pen, and the work table surface is opened in the symmetry and is placed with the slot, and the buffer solution bottle is placed in the slot, and the buffer solution bottle top is slidably installed with the lifting seat through the stand, and the lifting seat both sides are symmetrically provided with the sealing plate, and the sealing plate middle part is opened with the through -hole, and the through -hole position is equipped with the movable plate and movable cylinder, and the movable cylinder is installed with the sealing plug with the through -hole cooperation, and the spring is equipped outside the stand and is cooperated with the limiting nut and the limiting plate, and the lifting seat is provided with the pressure of pressing down, makes the sealing plate tightly cover in the buffer solution bottle top, guarantees the buffer solution seal, and when the test pen is contacted with the buffer solution and is contacted with the buffer solution bottle inside when calibrating and enters the movable plate and movable cylinder, realizes dynamic sealing, guarantees the stable of testing process.

The application discloses a kind of desulfurization slurry density, PH value multifunctional measuring device, including tank, the upper end of tank is provided with cover plate, the lower end of tank is provided with and its inside is communicated with feed nozzle, feed nozzle is located the one end in the outside of tank and is communicated with the bottom of absorption tower by first liquid inlet pipe, the one end of feed nozzle is located in the inside of tank and is communicated with the lower end of cloth distribution pipeline, the upper end of cloth distribution pipeline extends to the below of cover plate;The part of the side of tank is close to upper end is provided with overflow, the part of the side of tank is close to lower end is provided with sand outlet, the one side of middle part of tank is provided with PH meter interface, the other side of middle part of tank is provided with two differential pressure transmitter interfaces at intervals.The application is integrated with slurry PH value measurement, slurry density measurement, slurry sampling function, relative single-function unit type measuring device effectively saves equipment cost, and reduces operation and maintenance cost.

The utility model belongs to the technical field of chemical devices, and particularly relates to an oil-water two-phase interface determining device which comprises a reaction kettle, a discharging pipe is arranged at the bottom of the reaction kettle, a ball valve, a detection assembly, a sight glass and a control valve are sequentially arranged on the discharging pipe, a conductivity probe and a pH meter probe are arranged on the detection assembly, an electrode detection head is arranged on the conductivity probe, and a water inlet is formed in the pH meter probe. One end, close to the electrode detection head, of the conductivity probe is horizontally arranged in the detection assembly, an induction detection head is arranged on the pH meter probe, one end, close to the induction detection head, of the pH meter probe is upwards obliquely arranged in the detection assembly, the conductivity probe and the pH meter probe are electrically connected with the control valve, a first positioning key is arranged on the conductivity probe, and a second positioning key is arranged on the pH meter probe. According to the device, the problem that a single electric signal is interfered by temperature, impurities and emulsion can be solved, and rapid and accurate detection of an oil-water interface is realized.

The utility model relates to an electrodialysis device for concentrating and recycling nitric acid waste liquid in an aluminum material surface treatment process. The electrodialysis device comprises an electrodialysis membrane stack, a control system, a conductivity / pH meter, an electrode liquid tank, a nitric acid waste liquid tank, a dilute nitric acid tank and a direct-current power supply. The device provided by the utility model overcomes the defects in the traditional method by improving the problem of uniform dispersion of liquid in the net-shaped body part of the chamber frame in the electrodialysis device, can effectively reduce the membrane resistance, prolong the service life of the membrane, improve the equipment efficiency, reduce the production cost and reasonably utilize resources, and is simple to operate and low in cost. The method can better solve the problem of treatment of nitric acid wastewater, and has good environmental benefits and economic benefits.

The utility model discloses a system for online monitoring of dissolved oxygen and pH of a deaerator, and belongs to the technical field of boiler water quality monitoring and control. According to the technical scheme, the system for monitoring the dissolved oxygen and the pH on line through the deaerator comprises an ammonia water preparation tank, the deaerator, a deoxidant preparation tank, a sampling cooler and a controller; the ammonia water preparation tank is connected with a stronger ammonia water feeding pipeline and a desalted water inlet pipeline I from a pipe network; the deaerator is connected with a deoxygenated steam inlet pipeline, a deoxygenated water inlet pipeline and a deoxygenated water outlet pipeline, and the deoxygenated water outlet pipeline is connected with a boiler water supply pipeline through a pipeline; the deoxygenated water outlet pipeline is further connected with a sampling cooler through a pipeline, a shell pass of the sampling cooler is provided with a circulating water feeding pipeline and a circulating water return pipeline, a tube pass outlet of the sampling cooler is connected with a detection pipeline, and a dissolved oxygen online analyzer and an online pH meter are arranged on the detection pipeline. According to the utility model, the dissolved oxygen and the pH value of the effluent of the deaerator can be rapidly detected in real time, and the safety and the economical efficiency of boiler operation are improved.

The application relates to the technical field of wastewater treatment, in particular to an automatic dosing control device for industrial wastewater treatment, which comprises a tank body, a tank cover, a motor, a dosing pipe, a pH meter, a filter plate, an agitation assembly and an adjusting assembly; the motor and the dosing pipe are arranged on the tank cover; the pH meter is arranged in the tank body; when the pH meter detects the pH value change of wastewater, the dosing pipe is controlled to add reagents; the filter plate is arranged in the tank body; the agitation assembly penetrates through the filter plate and is connected with the dosing pipe. The agitation assembly and the adjusting assembly can filter the precipitates formed in the wastewater softening process in a pressure filtration mode, and the filter plate is reset after the filtration is completed; air is used to extrude from the top of the filter plate during the resetting process, so that part of the precipitates adhered to the bottom of the filter plate are removed, and the continuous and stable operation of the desulfurization wastewater zero discharge process is ensured.

The utility model discloses an automatic pH control device for fed-batch dilute sulphuric acid in an acidification lignin production process, which comprises a dilute sulphuric acid fed-batch pipeline and a reaction kettle, one side of the surface of the dilute sulphuric acid fed-batch pipeline is provided with a corrosion-resistant electric adjusting ball valve, and the other side of the surface of the dilute sulphuric acid fed-batch pipeline is provided with a corrosion-resistant electromagnetic flowmeter. One end of the dilute sulfuric acid fed-batch pipeline penetrates through the inner wall of the reaction kettle and is fixedly communicated with an annular pipe, a dosing hole is formed in the surface of the annular pipe, and an online pH meter is fixedly mounted at the bottom of the inner wall of the reaction kettle. Through automatic program fed-batch, the product quality of each batch is stable, the carbonization phenomenon during sulfuric acid addition is reduced, the product quality is improved, the situation of excessive sulfuric acid fed-batch is also solved, production can be carried out in a relatively closed environment, and pollution is reduced.

The utility model relates to the technical field of biological pharmacy, in particular to an online PH meter electrode protection device in TZV preparation, which comprises a reaction kettle, a sealing cover is arranged at the top end of the reaction kettle, a feeding pipe is communicated with the top end of the sealing cover, a discharging pipe is communicated with the bottom end of the reaction kettle, and a PH meter main body is further arranged on the inner side of the sealing cover. The electrodes of the PH meter main body can be protected through the protective shell, the electrodes of the PH meter main body can be prevented from being exposed in the air, the accuracy of data detected by the PH meter main body can be guaranteed, the service life of the PH meter main body can be guaranteed, after the reaction kettle is filled with reaction liquid, the air bag can float upwards along with the reaction liquid at the moment, and the safety of the reaction kettle is guaranteed. At the moment, the air bag can stir the connecting rod to rotate on the rotating frame, the sliding disc can slide downwards along the limiting rod, the PH meter main body can slide downwards along the through hole, the PH meter main body can extend into the reaction liquid, and the PH value of the reaction liquid can be conveniently monitored.

The utility model belongs to the technical field of boiler flue gas desulfurization, and discloses a device for measuring the pH value and density of desulfurization slurry, the device comprises a sampling inclined pipe, an inlet valve, a pH meter, a mass flowmeter, an outlet valve, a sample discharging inclined pipe and a measuring pipeline, the upper end of the sampling inclined pipe is communicated with the side wall of an absorption tower slurry pool, and the lower end of the sample discharging inclined pipe is communicated with the side wall of the absorption tower slurry pool; the upper end of the measuring pipeline is connected with the lower end of the sampling inclined pipe, and the lower end of the measuring pipeline is connected with the upper end of the sample discharging inclined pipe; an inlet valve, a pH meter, a mass flow meter and an outlet valve are sequentially arranged on the measuring pipeline from top to bottom; and a side-entering stirrer is mounted at the lower part in the absorption tower slurry pool. The measuring pipeline is vertically arranged, so that solid particles in the slurry are not deposited; small pressure difference is generated between a low-pressure area on the back of the stirrer and an inlet, so that slurry flows at a low speed, and measured data are stable; the sample discharging inclined pipe is fixedly connected to the bottom wall plate of the absorption tower slurry pool, slurry is not discharged, and environment friendliness is achieved.

The utility model discloses a PH and density detection system for a wet desulphurization process. The PH and density detection system comprises a plurality of sampling branch pipes, a sampling header pipe and a detection tank, the number of the sampling branch pipes corresponds to the number of circulating pumps on the desulfurizing tower, one end of each sampling branch pipe is connected with an outlet of the circulating pump, the other end of each sampling branch pipe is connected with a sampling header pipe, the sampling header pipe is connected with a slurry inlet in the bottom of a detection tank, and the detection tank is provided with a PH meter interface, a differential pressure densimeter interface and an overflow port. The overflow port is connected with the desulfurization tower through a pipeline; according to the utility model, slurry in all directions in the tower can be comprehensively collected in real time in a manner of sampling at the outlet of the circulating pump, so that the accuracy of PH and density detection data is improved; through a positive pressure sampling mode, pipeline blockage caused by a static pressure self-flowing mode can be avoided; through the electric regulating valves at the head ends of the branch pipes, the flow of each branch sampling pipeline can be balanced, the flow speed of sampling slurry is controlled, the flow stability is ensured, and the abrasion of an instrument probe is reduced.