440 results about "Residual chlorine" patented technology

The invention discloses a thermal power plant circulating water intelligent dosing method based on multi-module cooperation. The system is composed of a detection module, a control module, a chemical adding module, a sewage discharging module, a water supplementing module and an AI intelligent learning feedback module, key parameters such as the pH value, the conductivity, the temperature, the residual chlorine, the turbidity and the flow of circulating water are monitored in real time through a multi-dimensional sensing network, a dynamic water quality prediction model is established in combination with an AI algorithm, and precise closed-loop control over the chemical adding amount is achieved. The system adopts an intelligent decision-making mechanism coupled by a fuzzy PID algorithm and deep reinforcement learning (DRL), can adaptively adjust the dosing proportion of chemicals, and synchronously links a blow-down valve and a make-up pump to maintain the water balance of the system. The system solves the problems of large hysteresis quality and high manual dependence degree of a traditional dosing system, has the characteristics of real-time response, accurate control, energy conservation and consumption reduction, and provides an innovative solution for intelligent transformation of a circulating water system of a thermal power plant.

The invention provides a method for predicting water quality of a water supply pipe network based on water age entropy. The method comprises the following steps: S1, establishing a water supply pipe network model based on an actual water supply pipe network; s2, simulating water supply of an actual water supply pipe network by using the water supply pipe network model, and counting the flow of each pipeline and the water age of each pipeline node according to a certain sampling time interval; s3, calculating the water age entropy of each pipeline node of different sampling points; s4, acquiring water quality influence factors of each pipeline node of different sampling points; s5, calculating a correlation coefficient of the water age entropy-water quality influence factor of each pipeline node of different sampling points; s6, fitting a water age entropy-water quality influence factor relation curve of each pipeline node; and S7, predicting the water quality influence factor of each pipeline node at a certain time by using the fitted water age entropy-water quality influence factor relation curve of each pipeline node. The water age entropy concept is introduced into the pipe network water quality evaluation, the residual chlorine value of the pipe network is predicted through the water age entropy, and the water supply quality safety is guaranteed.

The invention belongs to the technical field of drinking water purification equipment, and particularly relates to an intelligent dosing system based on cloud computing, which comprises a monitoring unit, a data control unit and a dosing unit, according to the invention, the content of residual chlorine in the clean water tank and the concentration of sodium hypochlorite in the dosing pipe are detected, and the dosing rate and start-stop time of the dosing unit are controlled according to the detection result, so that dynamic control of the concentration of sodium hypochlorite in tap water is realized; the mode of storing the sodium hypochlorite solution in advance is utilized, the burden of the sodium hypochlorite generator is reduced, meanwhile, the adjustable range of the dosing rate of the dosing unit is expanded, the adjusting rate of the residual chlorine content in tap water is flexible, and tap water chlorine disinfection operation is more convenient.

The invention discloses a residual chlorine determination method, and relates to the technical field of monitoring. The method comprises the following steps: immersing a potential type residual chlorine sensor into a standard residual chlorine solution, collecting a potential response value, calculating a response coefficient, and correcting a potential signal of the sensor; denoising the corrected signal by using a multi-scale fuzzy entropy algorithm to obtain a processed signal; color development time, spectral absorbance and environmental parameter data are collected, the processed signals are combined, and four-dimensional historical data are generated through multi-dimensional quantitative fusion; constructing a four-dimensional residual chlorine concentration detection model based on the three-dimensional curved surface model, and training the model by using four-dimensional historical data; inputting four-dimensional real-time data to the trained model, and outputting predicted residual chlorine concentration; and comparing the predicted value with the actual concentration, directly outputting if the error is smaller than a preset threshold value, fusing real-time data into a historical data retraining model if the error is larger than the threshold value, and outputting after iterative optimization. According to the invention, the four-dimensional residual chlorine concentration detection model is constructed, so that the refined determination of the residual chlorine content is realized.

The invention discloses a device and method for separating a titanium dioxide primary product and residual chlorine, the device comprises an outer cylinder, a spiral assembly and a negative pressure device, the spiral assembly is arranged in the outer cylinder; the spiral assembly comprises an inner barrel and a spiral plate, the inner side edge of the spiral plate is fixed to the outer wall of the inner barrel in a threaded mode, and the outer side edge of the spiral plate is adjacent to the inner wall of the outer barrel; a vent hole penetrating into the outer cylinder body is formed in the inner cylinder body; a first end of the inner cylinder is provided with a gas inlet, and a second end of the inner cylinder is provided with a gas outlet; and the negative pressure equipment is communicated with the gas outlet. By arranging the negative pressure equipment, matching with the vent holes and combining with a spiral stirring and conveying feeding mode, the separation efficiency can be greatly improved, and the chlorine content on the surface of titanium dioxide can be greatly reduced. And the separated chlorine gas is collected, enriched and recycled, or is absorbed by alkali liquor, so that the harm of the chlorine gas to the environment and human bodies is reduced.

The invention discloses a water quality monitoring device and a monitoring method thereof, belongs to the technical field of water quality monitoring, and solves the problems that trace hydrogen sulfide generated by sulfate reducing bacteria in a deposited layer at the bottom of a water tank which is not cleaned for a long time in a low-oxygen environment reacts with a platinum membrane electrode of a residual chlorine sensor to generate a platinum sulfide covering layer; and the electrode reading is continuously virtually high and drifts slowly. Comprising an optical transmitting module, an optical receiving module, a spectrum separation module, a signal conditioning module, a lock-in amplification module, a spectrum feature extraction module and a hydrogen sulfide recognition engine. Residual chlorine is monitored in a non-contact mode, deep ultraviolet pulse light is emitted to penetrate through a water body, a reflection spectrum is received, second derivative spectral characteristics are extracted through multichannel signal processing, and multivariable regression compensation is executed to calculate a real residual chlorine value after hydrogen sulfide interference characteristics are recognized. Meanwhile, the drift trend is quantified based on the double-time-constant integral, graded early warning is triggered, industrial standard signals are finally output, and the problem of electrode contact pollution is avoided in the whole process.

The invention provides a method for recycling valuable metal from germanium-antimony-tellurium alloy waste. The method comprises the three steps of surface treatment, chlorine reaction and compartment condensation and discharging. Oxidation films on the surfaces of the waste materials are removed through surface treatment, and the subsequent chlorine reaction efficiency is improved; then a self-made chlorination-step condensation integrated device is utilized, germanium, antimony and tellurium react with chlorine at the high temperature to generate gaseous chloride, step-by-step condensation separation is achieved through partition temperature control based on the boiling point difference of tellurium tetrachloride, antimony pentachloride and germanium tetrachloride, and target products are collected respectively; and finally, introducing inert gas to purge residual chlorine, and discharging safely. The method has the advantages of short process flow, no need of complex wet process steps and low equipment investment; metal chlorides are efficiently separated through the integrated device, and recovery is thorough; and the pyrogenic process is mainly adopted, no wastewater is generated, only tail gas is treated in a compliance manner, and the method is environment-friendly. Compared with a traditional wet process, the method has the remarkable advantages of high efficiency, low cost, environment friendliness and the like.

The utility model relates to a system for testing chlorine oxidation resistance of a plastic pipe in a high-temperature internal-pressure fluid, which comprises a pretreatment device, a temperature control device and a control device, the pressure pump is used for receiving the preheated fluid and boosting the pressure of the preheated fluid; the heating device is used for reheating the pressurized and preheated fluid to 100 DEG C or above; the constant-temperature test device is provided with a test box body, and a plurality of test pipe fittings are arranged in the constant-temperature test device along the vertical direction; and the post-treatment device is used for cooling the high-temperature internal pressure fluid from the constant-temperature test device, and the cooled fluid is circulated to the pretreatment device through a pipeline. The system can ensure that the temperature breaks through the limitation of 100 DEG C while the water solution entering the plastic pipe is kept in a liquid state, realizes automatic water replenishing and real-time monitoring and control on the temperature, pressure, pH, ORP and residual chlorine of the test fluid, and realizes one-key starting unmanned intelligent operation.

The invention discloses a swimming pool water quality management system and method based on intelligent regulation and control of residual chlorine concentration, and belongs to the technical field of swimming pool water quality management. According to the system, water quality parameters are monitored in real time at the frequency of one second through residual chlorine, pH, turbidity and water temperature sensors, after filtering processing is conducted through a data acquisition module, the adding amount is dynamically calculated through an intelligent adding algorithm in combination with a preset residual chlorine target range, and then accurate adding is conducted through a high-precision metering pump. Meanwhile, the water quality comprehensive management unit automatically adjusts the pH value to a preset range, and a flocculating agent is regularly added to reduce the content of organic matters. When the residual chlorine concentration is lower than 0.3 mg / L or higher than 1.0 mg / L, early warning is triggered, and all monitoring data, adding records and early warning information are synchronously stored in a local server and a cloud database; water quality real-time monitoring and dynamic accurate regulation can be realized, and safety and stability of water quality of the swimming pool are guaranteed.

Metal carbide films and related devices and related methods are provided herein. A device comprises a substrate and a metal carbide film located on the substrate. The metal carbide film comprises at least one of a molybdenum, a tungsten, or any combination thereof. The metal carbide film comprises a residual chlorine component. The metal carbide film has a carbon content of at least 10% based on a total composition of the metal carbide film.

The invention provides a long-distance water distribution pipe network secondary chlorination system based on disinfection by-product control, and relates to the technical field of water supply control, and the long-distance water distribution pipe network secondary chlorination system comprises a residual chlorine concentration prediction module used for carrying out residual chlorine concentration prediction on a preset water distribution scheme; the secondary chlorine adding point site selection module is used for carrying out secondary chlorine adding point site selection; the secondary chlorine adding decision module is used for performing secondary chlorine adding decision based on a chlorine adding scene registration threshold in combination with a predicted residual chlorine concentration set and a secondary chlorine adding point site selection scheme; the secondary chlorination optimization module is used for performing multi-order optimization according to a secondary chlorination multi-order optimization algorithm; and the secondary chlorination module is used for carrying out secondary chlorination on the long-distance water distribution pipe network according to the secondary chlorination optimization strategy. The technical problem that excessive disinfection by-products are generated due to secondary chlorination in the prior art and the water quality safety is influenced can be solved, the chlorine addition amount is dynamically adjusted through a multi-order optimization algorithm, the generation of the disinfection by-products is effectively reduced, and the water quality safety is improved.

The invention provides a seawater circulating aquaculture purification method and system based on BDD electrocatalytic oxidation, and belongs to the technical field of water treatment. The seawater circulating aquaculture purification method provided by the invention is high in feasibility, economical and practical, simple in system equipment, small in occupied area and convenient to use. According to the method provided by the invention, BDD electrocatalytic oxidation is adopted as a core process, the process flow is short, the operation is simple, the occupied area is small, and active chlorine generated by BDD electrocatalytic oxidation is fully utilized in a mixing manner, so that residual chlorine is removed with low energy consumption, and the breeding safety is ensured. The corresponding number of reactors can be started in time according to different circulating water amounts and water qualities, and the treatment effect is stable. Upgrading of an industrial recirculating aquaculture technology is promoted, the aquaculture density can be effectively improved, and meanwhile pollutants discharged by a seawater recirculating aquaculture system are remarkably reduced.

The utility model discloses a portable multi-parameter water quality detection and analysis combined device which comprises a box body, a box cover is hinged to one side of the box body, a clamping mechanism is installed on the other side of the box body and matched with the box cover, a water quality detector body is installed in the box body, and a water quality detector is installed in the box body. A test tube fixing area, a reagent bottle storage area, a printing area, a detection area, a colorimetric area and a display area are arranged on the water quality detector main body, a plurality of fixing assemblies are arranged on the test tube fixing area, each fixing assembly comprises a fixing disc and a rotating disc rotationally connected with the fixing disc, and a fixing block for fixing a test tube is hinged to the rotating disc; a residual chlorine detection electrode, a pH detection electrode, a conductivity detection electrode and a dissolved oxygen detection electrode are arranged in the detection area, a plurality of uniformly distributed colorimetric grooves are arranged in the colorimetric area, and colorimetric tubes are arranged in the colorimetric grooves. The portable multi-parameter water quality detection and analysis combined device is simple in structure, convenient to carry, diversified in function and capable of detecting various parameters of water quality.

The utility model relates to the technical field of reaction kettles, and provides a circulating chlorinated paraffin reaction kettle which comprises a bottom plate, and a circulating mechanism is arranged above the bottom plate. By arranging the circulating mechanism, when chlorinated paraffin is prepared in the reaction kettle, liquid paraffin and chlorine can be stirred by using a stirring rod in a rotating state, the reaction efficiency of the liquid paraffin and the chlorine is improved, and tail gas generated after the reaction of the liquid paraffin and the chlorine enters the storage box to be stored and purified; the residual chlorine in the tail gas can enter the reaction kettle main body again through the connecting pipe and the gas inlet pipe to participate in the reaction, so that the residual chlorine in the tail gas is recycled, the tail gas emission is reduced, the chlorine waste is avoided, and the purpose of reducing the cost is achieved. According to the technical scheme, the problems that chlorine is wasted and the cost is increased due to direct emission since chlorine introduced into the reaction kettle cannot completely react with liquid paraffin in the production process of chlorinated paraffin and chlorine is still remained in tail gas discharged subsequently in the prior art are solved.

The invention relates to the technical field of deep processing of sponge titanium, in particular to a broken-state high-chlorine sponge titanium particle dechlorinating and upgrading method. The method comprises the following steps: carrying out chlorination by adopting a three-stage process of washing desalination, vacuum dehydration and deep dechlorination; physical dechlorination through hot water washing: directly stripping chlorine salts on the surfaces and shallow layers of particles through dynamic water washing by utilizing the high-temperature dissolution characteristic; performing vacuum gradient treatment: performing low-temperature dehydration and oxygen blocking, and then performing high-temperature targeted removal of deep residual chlorine. The method has the beneficial effects that the dechlorination efficiency is multiplied, more than 60% of surface chlorine salt is pre-removed through water washing, and the subsequent vacuum dechlorination load is reduced.

The utility model relates to the technical field of secondary water supply, in particular to a residual chlorine supplementing system of a secondary water supply system, which comprises a water tank and a chlorine adding system. The water tank is provided with a water inlet and a water outlet, the chlorination system is communicated with the water inlet of the water tank through a first pipeline and is communicated with the water outlet of the water tank through a second pipeline, a first valve is arranged on the first pipeline, and a second valve is arranged on the second pipeline; one side of the water tank close to the water outlet is connected with a concentration detector. The device has the effect that the chlorine content of water discharged from the water outlet end of the water tank meets the standard.

The invention relates to the technical field of water quality detection, and particularly discloses a method for testing residual chlorine and other oxidants, a detection reagent composed of a color-developing substance and an organic dissolution promoter is used in the method, during detection, the color-developing substance in the reagent is oxidized and becomes pink from colorless, and the organic dissolution promoter is used for detecting the residual chlorine and other oxidants. The stable dissolution promoter can increase the stability of the color development substance in the oxidation color development process, so that the detection reagent can be stable for a long time in a liquid phase state, and the method for testing residual chlorine and other oxidants has the advantages of being easy and convenient to operate, accurate in result, low in price, convenient to store and transport, suitable for on-site rapid detection and the like.

The utility model provides a novel modularized water tank with a contact disinfection function. The novel modularized water tank comprises a tank body, a tank cover, a liquid level meter, a water quality monitoring probe box, a sampling control valve and a central control module, the box body is mainly formed by splicing a plurality of modules, the modules comprise a water inlet module, a water outlet module and a plurality of middle modules, and the middle modules are arranged between the water inlet module and the water outlet module; each module is provided with a module box, a flow guide partition plate, an underflow propeller and a cambered surface flow guide body; a water inlet pipe is arranged on the water inlet module and is communicated with the circulating cavity, far away from the middle module, of the water inlet module; a water outlet pipe is arranged on the water outlet module; the box cover comprises a plurality of sub-covers, and each sub-cover covers a module box opening of one module. The water tank disclosed by the utility model can ensure the effective contact time of a water body and a disinfectant, solves the problem that the effluent quality does not reach the standard due to residual chlorine attenuation in a long-time water storage process, and simultaneously can reduce the condition of scale deposition at the bottom of the tank.

To provide a technique related to the olfactory recognition of water purification effects.SOLUTION: A method for determining residual chlorine concentration includes the steps of: extracting herbal tea from herbal tea ingredients using sample water; conducting a sensory evaluation of the aroma of the herbal tea; determining whether an unpleasant odor is perceived; determining that the residual chlorine concentration in the sample water is below a prescribed value when no unpleasant odor is perceived.SELECTED DRAWING: Figure 3

The invention discloses a device and a method for recovering organic matters in hydrogen chloride gas, and relates to the technical field of chemical environmental protection, the device comprises a falling film absorber and an acid storage tank, the falling film absorber adopts a vertical multi-tube-pass structure, and a tube pass is provided with a film distributor; an organic matter overflow pipe is arranged on the tank wall of the acid storage tank, the acid storage tank is communicated with the falling film absorber through a pipeline system, and a closed cooling jacket is arranged outside the tube pass of the falling film absorber; the film distributor comprises a top cover, a sealing disc and a film distribution cone, and the top cover is fixed to the top of the tube pass to form a closed cavity. The invention aims to solve the problems of hydrochloric acid product pollution, excessive tail gas VOCs (Volatile Organic Compounds), resource waste, environmental violation and the like caused by residual chlorobenzene in byproduct hydrogen chloride in the reaction of benzene and chlorine in the prior art. The device and the method have the advantages that efficient hydrogen chloride absorption and organic matter resource recovery are synchronously realized through the synergistic effect of gas-liquid mass transfer reinforcement, low-temperature stable control and continuous gravity phase splitting.

The invention provides a direct drinking water equipment water quality data analysis and accurate control method based on an intelligent algorithm, and relates to the technical field of intelligent control of direct drinking water equipment.The method comprises the steps that water quality data including the total dissolved solid content, the pH value, the oxidation-reduction potential, the residual chlorine concentration and the temperature are collected in real time through a multi-sensor module; performing dynamic standardization preprocessing on the data to generate a multidimensional feature vector containing a timestamp; the water quality state is evaluated based on a water quality dynamic deviation index WDDI and a system response efficiency coefficient SRE, the WDDI quantifies the parameter dynamic deviation degree through a piecewise function, and the SRE represents the equipment response efficiency through a polynomial regression model; an NSGA-II algorithm and LSTM prediction are fused to generate a dynamic control strategy set; an optimal strategy is screened according to the real-time SRE value, and filter element mode switching, backwashing adjustment and sterilization power adjustment are driven; algorithm parameters are optimized through closed-loop feedback, and abnormal detection and safety mode switching are achieved in combination with an isolated forest algorithm.

The invention discloses a water storage tank with filtering and sterilizing functions. The water storage tank comprises a tank body, supporting legs are fixedly connected to the bottom of the tank body, an access door is fixedly connected to the outer wall of the tank body through bolts, a water inlet pipe is fixedly connected to the top of the tank body, and a water drainage pipe is fixedly connected to the bottom of the tank body; the outer side of the water treatment device is fixedly connected with the inner wall of the tank body, and the bottom of the water treatment device is fixedly connected with an electrode plate. And the water storage tank passes through a filtering assembly part in the water treatment device. Carrying out primary filtration to remove large-particle impurities; residual chlorine, peculiar smell and part of organic pollutants in the water are removed through the adsorption effect of the adsorption assembly; the ultraviolet germicidal lamp emits ultraviolet rays to destroy DNA structures of microorganisms in water so as to realize sterilization, and finally, the electrode plate generates strong oxidizing substances by virtue of electrolytic reaction, so that residual microorganisms in the water are further killed, and sufficient purification and sterilization treatment of the water are jointly guaranteed.

The utility model discloses an on-line chlorine gas sampling device and relates to the field of fine chemical engineering. The chlorine gas online sampling device comprises a gas storage tank; the sampling pipe is fixedly communicated with the upper end of the gas storage tank; the valve I is mounted on the sampling tube; the purging pipe is fixedly communicated with one side of the sampling pipe and is positioned on the upper side of the valve I; the gas storage tank, the sampling pipe, the first valve, the purging pipe, the second valve and other components are used in cooperation, after a certain amount of chlorine is sampled into the gas storage tank, nitrogen can be purged into the sampling pipe through the purging pipe, part of residual chlorine in the sampling pipe is purged back into the chlorine storage tank, and it is avoided that after the sampling pipe is separated from the chlorine storage tank, the sampling pipe is separated from the chlorine storage tank, and the sampling pipe is separated from the chlorine storage tank. The chlorine remaining in the sampling pipe drifts into the air, so that sampling personnel are hurt, and the safety of the sampling device is effectively improved.

The invention relates to a biogas slurry sterilization method and equipment thereof. The invention relates to the technical field of organic waste treatment, and discloses a biogas slurry sterilization method, which is characterized in that chlorine products Cl2, HClO and / or ClO <-> are generated through electrocatalytic electrolysis of biogas slurry for sterilization. The biogas slurry sterilization equipment is characterized in that the biogas slurry sterilization equipment comprises a control cabinet, a reaction tank, positive and negative electrode plates, a stirring water pump, a defoaming water pump and a residual chlorine and conductivity detector, the positive and negative electrode plates are in full parallel connection, the distance between the electrode plates can be adjusted, electrodes are arranged in the reaction tank, and a constant-current power supply is arranged in the control cabinet to supply power to the positive and negative electrode plates. The control cabinet adjusts the magnitude of the current. The stirring water pump is used for uniformly stirring the biogas slurry, the defoaming water pump is used for enhancing gas exchange, the residual chlorine and conductivity detector is used for realizing real-time detection of residual chlorine products (Cl2, HClO and ClO-) and conductivity, the sterilization effect can reach 100%, nutrient substances in the biogas slurry cannot be lost in the sterilization process, returning utilization of the biogas slurry is not affected, and the biogas slurry sterilization device is environmentally friendly and high in safety.

The invention relates to the technical field of sewage treatment, in particular to an ultraviolet irradiation and sodium hypochlorite synergistic sewage treatment process which specifically comprises the following steps: S1, performing light treatment on sewage by using an ultraviolet lamp, and controlling the ultraviolet dosage to be 15-25mJ / cm < 2 >, the wavelength of the ultraviolet lamp to be 254nm and the irradiation time to be 1-5min; s2, adding modified sodium hypochlorite into the sewage treated in the step S1 under the condition of not stopping illumination of the ultraviolet lamp to obtain a treated water body; s3, sodium thiosulfate is added into the water body obtained in the step S2, redundant chlorine elements in the water body are removed, and a finally-treated water sample is obtained. Through the synergistic effect of ultraviolet irradiation and modified sodium hypochlorite, the adding amount of sodium hypochlorite is reduced (the sodium hypochlorite can reach the standard only by 1 mg / L), meanwhile, the contact reaction time is shortened to 1 min, and the comprehensive energy consumption is reduced by 30%-40%. In addition, residual chlorine is accurately neutralized by sodium thiosulfate in a controlled amount, excessive medicament residues are avoided, and the green chemical process requirements are met.

A circulation-type treatment system (1) is provided with an elimination unit (5), an electrolysis unit (13), and a residual chlorine elimination unit. The elimination unit (5) eliminates solids contained in the breeding water in a first region in which the breeding water sent from the breeding tank (3) is retained or flows. The electrolysis unit (13) generates a chlorine oxide compound by electrolyzing the breeding water in a second region in which the breeding water that has passed through the first region is retained or flows, and causes the generated chlorine oxide compound to react with ammonia or ammonium ions in the breeding water. The residual chlorine elimination unit eliminates at least residual chlorine in a third region in which the rearing water that has passed through the second region is retained or flows.

The utility model relates to the technical field of liquid chlorine treatment, in particular to a liquid chlorine steel cylinder treatment device and a using method. The device comprises a liquid chlorine steel cylinder, a gravity sensing base for sensing the weight of the liquid chlorine steel cylinder, and an evacuating and replacing unit which is communicated with the liquid chlorine steel cylinder and is used for removing residual chlorine in the liquid chlorine steel cylinder, the neutralizing unit is communicated with the liquid chlorine steel cylinder and is used for neutralizing residual chlorine; the purging and drying unit and the air tightness checking unit are sequentially arranged at the downstream of the evacuating and replacing unit; the liquid chlorine steel cylinder is provided with a gas-phase cylinder valve and a gas-phase distribution pipe which are communicated with the evacuation and replacement unit, and a liquid-phase cylinder valve and a liquid-phase distribution pipe which are communicated with the neutralization unit. The liquid chlorine steel cylinder treatment device has the effect of solving the problems that existing liquid chlorine steel cylinder treatment is tedious in operation and low in efficiency, and potential safety hazards exist.

The utility model discloses an automatic sodium hypochlorite adding system for tap water disinfection, which comprises a clean water tank, a water distribution room, a PLC (programmable logic controller) control module, a mechanical control system and a sodium hypochlorite adding device, the front end of the clean water tank is connected to a water inlet pipeline, and the clean water tank is communicated with the water distribution room through a connecting pipeline; the PLC control module is electrically connected with the mechanical control system, the sodium hypochlorite adding device comprises a sodium hypochlorite storage tank, a metering pump and an adding pipeline, an electric valve located between the metering pump and the sodium hypochlorite storage tank is arranged on the adding pipeline, and the metering pump is electrically connected with the PLC control module through a control cabinet; a flowmeter is arranged at the outlet end of the metering pump on the feeding pipeline, a filtered water residual chlorine instrument and a clean water tank tail end residual chlorine instrument which are positioned at the front end and the rear end are arranged in the clean water tank, and a factory water residual chlorine instrument is arranged on the water distribution pipeline of the water distribution room; the tail end of the feeding pipeline is connected to the tail ends of the water inlet pipeline and the clean water tank respectively.

The invention discloses a triphosgene continuous synthesis method and device, and belongs to the technical field of fine chemical production. The triphosgene continuous synthesis method comprises the following steps: S1, continuously conveying dimethyl carbonate to the lower part of a reactor, and continuously inputting chlorine from the bottom of the reactor; s2, after dimethyl carbonate and chlorine are mixed in a reactor, a reaction is initiated by irradiation of an ultraviolet light source with the wavelength of 295-395 nm, and molten triphosgene and hydrogen chloride gas are generated; wherein the temperature in the reactor is gradually increased from bottom to top to present a temperature gradient; and S3, continuously overflowing the molten-state triphosgene into a degassing tower to remove residual hydrogen chloride in vacuum, and enabling the degassed molten-state triphosgene product to enter a flaking section. According to the method, by optimizing reaction conditions and equipment design, the cost can be reduced, the utilization rate of raw materials can be increased, generation of byproducts can be reduced, meanwhile, the safety and efficiency of the reaction are guaranteed, and efficient, safe and continuous production of triphosgene is achieved.

The invention belongs to the field of residual chlorine detection, and particularly relates to a high-concentration residual chlorine detection device which comprises a residual chlorine detection device body, a fixing pipe is fixedly connected to the rear side of the residual chlorine detection device body, a fixing rod is slidably connected to the interior of the fixing pipe, and a residual chlorine detection sensor head is fixedly connected to the bottom of the front face of the fixing rod. The top of the residual chlorine detection sensor head is electrically connected with a wire; a servo motor is started, the servo motor drives a transmission rod to rotate, the transmission rod rotates to drive a second bevel gear to rotate, the second bevel gear drives a first bevel gear to rotate, the first bevel gear drives a supporting rod to rotate, the supporting rod rotates to drive a transmission gear to rotate, and the transmission gear drives a movable toothed plate to move. And the movable toothed plate drives the fixed rod to move downwards to a proper length, so that a user can detect residual chlorine through the residual chlorine detection sensor head, the detection efficiency is relatively high, and the effect of convenient detection is achieved.