45results about How to "Stable concentration" patented technology

The embodiment of the utility model provides an anaerobic biofilm reaction device, and relates to the technical field of wastewater treatment. The anaerobic biofilm reaction device comprises a reactor body, wherein a feeding pipe, a gas outlet pipe and a sludge discharge pipe are arranged on the reactor body; the solid-liquid separation mechanism is arranged outside or inside the reactor body, the solid-liquid separation mechanism is provided with an input end, a liquid phase output end and a solid phase output end, and the solid phase output end is communicated with the inside of the reactor body; and the driving mechanism is used for conveying the mixed liquid in the reactor body into the solid-liquid separation mechanism along the input end, so that the solid-liquid separation mechanism performs solid-liquid separation on the mixed liquid. The anaerobic biofilm reaction device adopts the solid-liquid separation mechanism to perform active solid-liquid separation on the mixed liquid, so that the wastewater treatment efficiency is improved.

This invention belongs to the field of water electrolysis for hydrogen production technology, and particularly relates to a water electrolysis device system and its usage method that separates alkali solutions at the hydrogen and oxygen ends. The system includes an electrolyzer body, a composite isolation unit, a hydrogen-side alkali solution circulation unit, an oxygen-side alkali solution circulation unit, a hydrogen-side deionized water supply device, an oxygen-side alkali solution supply device, an online monitoring unit, and a central control system. The composite isolation unit includes a hydrogen-side alkali solution chamber and an oxygen-side alkali solution chamber, with an intermediate composite isolation component between them. This component includes a strong alkali-resistant ceramic base frame, an ion-selective permeation membrane, and an elastic sealing edge. The ion-selective permeation membrane allows anions to pass through while blocking cations. Both the hydrogen-side and oxygen-side circulation units include a circulation pump module, a temperature-controlled heat exchange module, a monitoring module, and a gas-liquid separator. The temperature-controlled heat exchange module includes an electric heating unit and a plate heat exchange unit. The online monitoring unit and the central control system achieve closed-loop control and abnormal early warning by comparing target parameters with actual parameters.

The utility model relates to a wastewater denitrification and desulfurization treatment device which is characterized in that a water distributor is arranged at the lower part of an anaerobic reaction tank of an anaerobic reactor, a three-phase separator is arranged at the upper part of the anaerobic reaction tank of the anaerobic reactor, and a stirrer is arranged on an anoxic reaction tank of an anoxic reactor; an overflow port of the anaerobic reaction tank is connected and communicated with the anoxic reaction tank, a reflux port of the anaerobic reaction tank is connected and communicated with the anaerobic reaction tank through a wastewater reflux pipe, an aerator is arranged at the bottom of an aerobic reaction tank of the aerobic reactor, the anoxic reaction tank is connected and communicated with the aerobic reaction tank, a partition plate is arranged in the settling pond, a water inlet area is arranged on one side of the partition plate, and a settling area is arranged on the other side of the partition plate. A clear liquid outlet pipe is arranged at the upper part of the inclined plate of the sedimentation tank, a communicated clear liquid return pipe is arranged at the front part of the clear liquid valve of the clear liquid outlet pipe, and the clear liquid return pipe is communicated with the anoxic reaction tank. According to the device, the sulfate radical removal rate is high, nitrate in the wastewater can be simultaneously removed while sulfate radicals in the wastewater are removed, and the equipment investment and the treatment cost are reduced.

The utility model provides a detergent diluting container. The detergent diluting container comprises a mixing cavity and a flow guide part formed in the mixing cavity, the liquid spraying device is arranged on one side of the mixing cavity, the piston structure is arranged in the liquid spraying device, the driving device is arranged on the liquid spraying device and used for driving the piston structure, the detergent outlet pipe is connected with the piston structure, and the spraying head is arranged at one end of the detergent outlet pipe. The liquid container and the washing liquid container are arranged at the top of the mixing cavity, and the detergent inlet pipe is arranged at one end of the washing liquid container and communicated with the liquid spraying device. According to the utility model, the mixing efficiency is obviously improved, the non-uniform local concentration is avoided, meanwhile, through the synergistic effect of the flow guide part and the screen plate structure, the generation of precipitates and foams is reduced, the concentration of diluent is ensured to be stable, the device is suitable for various high / low viscosity detergents, the blocking risk is reduced, and the service life of equipment is prolonged.

This invention discloses an acidic oxidizing potential water generator and its preparation method for stable water quality control, belonging to the field of disinfection equipment technology. The device is designed with an inlet module, a brine preparation module, a mixing and control module, an electrolysis module, and a control system. Its core lies in employing a high-precision electric proportional control valve and a millisecond-level PID algorithm to achieve constant pressure and constant flow control of the inlet water flow. The brine preparation module uses a solid natural melting structure combined with closed-loop liquid level control, enabling long-term maintenance with a single salt addition lasting for six months. A built-in water quality prediction model based on electrolysis current (fma) is incorporated, using a specific algorithm formula to calculate pH, ORP, and available chlorine content in real time, achieving "soft measurement" and feedforward control of water quality. This solves the problems of high manual operation intensity and raw material concentration fluctuations, ensuring that the effluent water quality stably meets the high standard disinfection requirements of pH 2.5-2.6, ORP 1112-1115mV, and available chlorine 50-55mg / L.

This invention relates to the field of polymer synthesis technology. This invention provides a controlled polymerization method for a high-alternation-degree ETFE copolymer, comprising the following steps: (1) adding a solvent to a high-pressure reactor, replacing the air, and then filling it with an initial monomer mixture to a total pressure of 1.5-2.5 MPa, wherein the monomer mixture is a mixture of tetrafluoroethylene and ethylene; (2) heating to 60-85°C, adding an initiator to initiate the polymerization reaction; (3) simultaneously adding the monomer mixture continuously or semi-continuously during the polymerization reaction; (4) adding a chain transfer agent, and discharging the product after the reaction, i.e., the high-alternation-degree ETFE copolymer. This invention also provides a controlled polymerization method for a high-alternation-degree ETFE copolymer. This invention also provides an application of the high-alternation-degree ETFE copolymer in new energy, aerospace, high-end equipment manufacturing, and photovoltaic fields. The high-alternation-degree ETFE copolymer of this invention has high alternation degree (>92%), high thermal stability, and excellent mechanical properties.

The utility model relates to biological engineering equipment technical field, concretely relates to a biochemical incubator, including base, is equipped with the box on the base, is fixed in the box incubator, is pasted with the conduction sheet on the incubator, and the semiconductor refrigeration heating module is connected with the conduction sheet, and one side of the box is equipped with air filtration system, and is communicated with the incubator through the circulation pipe, and the ultrasonic humidifier is equipped below the semiconductor refrigeration heating module, and is communicated with the incubator through the pipeline, and the incubator is equipped with the sealed door, and there is the gap between the incubator and the box and forms the heat insulation layer, and the controller is connected with the temperature and humidity sensor group, gas sensor group electric signal, can automatically regulate and control each module according to real -time data.

The present application belongs to the technical field of plastic waste recycling, and discloses a plastic waste recycling device, which comprises a feeding box, a separation frame, a collecting cover, a cleaning cover, a dryer, a fixing frame and a linkage frame. The inner wall of the separation frame is provided with a groove, a separation rod, a guide plate and a sliding shaft. The top is assembled with a reciprocating screw rod, a moving rod, a spring telescopic rod and a magnetic cleaning brush through the fixing frame and the linkage frame, and is driven by a servo motor to realize reciprocating cleaning. The inner wall of the cleaning cover is connected with a pipe at both ends. The inner wall of the pipe close to the dryer is conical. A cleaning corrugated cylinder and an auger are arranged inside. A driving assembly is arranged on the outside. The dryer is connected through a conveying pipe. The present application realizes accurate separation of metal and plastic through the magnetic attraction reciprocating one-way cleaning structure, solves the problem of plastic retention, adopts the conical connecting pipe leak-proof design to reduce the loss of cleaning liquid, cooperates with the corrugated cylinder and the auger for cleaning, greatly improves the cleaning efficiency and the recovery purity, has strong structure linkage, continuous and efficient treatment, and significantly improves the practicality.

The invention relates to a molecular sieve oxygenerator with a water removal structure. The molecular sieve oxygenerator comprises a shell, an air compressor, a molecular sieve assembly and the water removal mechanism arranged between an outlet of the air compressor and an inlet of the molecular sieve assembly. The water removal mechanism comprises a shell, a conical water removal barrel and a cover body, the conical water removal barrel and a center barrel of the cover body are both of hollow structures and are communicated, cooling liquid is introduced into the conical water removal barrel, and an air inlet is formed in the tangent line of the center barrel and can collide, cool and condense high-pressure and high-temperature gas to achieve water-vapor separation; the cover body is provided with an annular exhaust channel, a moisture absorption box extending between the conical water removal barrel and the shell is arranged in the annular exhaust channel, and a water collection disc at the bottom of the shell is connected with a water collection mechanism through a one-way electromagnetic valve. The water collecting mechanism is formed by communicating a temporary storage bottle and a drainage bottle, and non-stop drainage can be achieved in cooperation with the sealing assembly and the anti-overflow groove. A surge tank is arranged between the exhaust port of the water removal mechanism and the molecular sieve assembly, and the air inlet pressure can be stabilized. The device effectively avoids the failure of the molecular sieve caused by water vapor, prolongs the service life of the molecular sieve, ensures the stable concentration of output oxygen, and has a good water removal effect.

The utility model discloses an alumina feed control equipment is set up in the feed port of aluminium electrolytic cell, and its characterized in that includes: the tubular material channel, and the first side plate is set up to give place to the cavity, and the throttle baffle is slidably assembled in the first side plate, and through the give place to the cavity and can reciprocatingly enter the material channel inner chamber, the throttle baffle middle part is equipped with the through -hole of axial, and its through -flow cross -section area is less than the material channel nominal through -flow cross -section area, the motor is fixed in the material channel outer wall, and the output end and the throttle baffle constitute the motion transmission chain, wherein when the motor drive throttle baffle enters the working position, its board body hides the material channel flow cross section, and the material passes through the through -hole and is limited to flow. The utility model discloses a tubular material channel, throttle baffle with through -hole, motor and its motion transmission chain are set up, utilize motor drive throttle baffle and enter the working position quickly, make its board body hide the material channel flow cross section, and the material can only pass through the through -hole and is limited to flow, realized the instant, accurate regulation of alumina feed flow.

This invention provides a square atmospheric pressure alkaline fuel cell stack, relating to the field of fuel cell technology. It comprises, from top to bottom, an upper end plate, an electrical cover plate, an upper current collector, an upper bipolar plate, an upper catalytic electrode, a composite porous membrane, a lower catalytic electrode, a lower bipolar plate, a lower current collector, and a lower end plate, stacked sequentially. The upper and lower end plates are fastened together as an integrated square structure by tie rods along their edges. This invention employs an electrode and membrane design without through-holes and precise planar sealing between layers. It eliminates the need for high-pressure operating conditions and complex circulation systems. Through a non-precious metal catalytic system, it achieves stable power generation under atmospheric pressure. Its core structure avoids cross-leakage of the medium, reduces component processing and operating costs, simplifies the system structure, and is suitable for applications such as distributed energy and miniaturized equipment. It solves the technical pain points of unreliable sealing, complex structure, and high cost of traditional fuel cell stacks, contributing to the efficient utilization of hydrogen energy and possessing broad industrial application prospects.

The utility model discloses a quartz tube sleeve for assembling a bonding wire annealing tube gas sensor, which comprises a tube body, the fixing pipe is used for being inserted into an annealing pipe opening to achieve sleeving connection of the pipe body and the annealing pipe, the limiting protrusion is used for abutting against the end face of the annealing pipe opening, the mounting base is used for mounting a gas sensor, and the limiting protrusion is arranged on the inner circumferential wall of the pipe body. One end of the limiting protrusion is connected between the fixing pipe and the installation base, the other end of the limiting protrusion is arranged in an inclined mode in the direction where the fixing pipe is located, a connecting table is arranged on the side wall of the installation base, and a containing cavity used for containing the sensor body is formed in the connecting table. The gas concentration monitoring device is simple in structure and convenient and reliable to assemble, facilitates monitoring of gas concentration and has a good use effect.

The application accords with the field of water pollution control and treatment technology, and particularly relates to a wastewater treatment device for producing left phosphorus right amine salt. The device comprises an evaporation reaction kettle, a plurality of evaporation pipes are fixedly connected to the middle part of the evaporation reaction kettle, the evaporation reaction kettle is divided into a feeding cavity, a discharging cavity and a heat exchange cavity, the evaporation reaction kettle is provided with a temperature sensor for detecting the gas in the heat exchange cavity, the evaporation reaction kettle is fixedly connected with a first push rod, the evaporation reaction kettle is slidably connected with a sliding shaft, the telescopic end of the first push rod is fixedly connected with the sliding shaft, the sliding shaft is fixedly connected with a blocking frame, and the blocking frame is used for blocking the plurality of evaporation pipes. After the high-temperature steam temperature is lower than the required value, the injection of wastewater is stopped and the plurality of evaporation pipes are blocked, so that the wastewater is accumulated in the feeding cavity, the wastewater is isolated from entering the evaporation pipes, the production amount of incompletely evaporated concentrated liquid is reduced, and the concentration of the concentrated liquid is stabilized.

The utility model relates to an absorption device and system for activity test, and the absorption device for activity test includes: absorption device body for being connected with activity test device, absorption device body includes at least two groups of absorption unit, and the adjacent two groups of absorption units are provided with the baffle, one end of baffle is connected with the top of absorption unit, and the other end has the clearance with the bottom of absorption unit, and the adjacent two groups of absorption units are communicated through the clearance, and the gas control part is provided on every absorption unit, and the gas control part is used for controlling the gas inlet and outlet of sulfur dioxide, the utility model discloses can effectively utilize the dilute sulfuric acid produced by drying and the fuming sulfuric acid produced by absorption, realizes the sustained use of sulfuric acid, reduces the dangerous waste production, sulfuric acid is strong acid material, and there is danger, and the absorption device for activity test provided by the utility model embodiment need not frequently replace sulfuric acid, reduces the personnel operation, reduces the potential safety hazard.

This application belongs to the field of specialty gas preparation technology, specifically relating to a method for preparing a high-purity, low-concentration corrosive specialty gas mixture. The invention employs a single-cylinder, stepwise dilution process. First, the gas cylinder to be filled is pretreated and evacuated to below 5 Pa. Then, the component gas and the first batch of dilution gas are sequentially added using a weighing method to obtain an intermediate concentration mixture. After mixing and settling, a portion of the mixture is discharged. The second batch of dilution gas is then added using the same weighing method. This dilution process can be repeated 1-4 times, with the remaining gas pressure not lower than 0.05 MPa each time. The entire dilution process is completed using only one gas cylinder. This invention significantly reduces the number of gas cylinders used, decreases the number of times corrosive gases come into contact with the inner wall of the cylinder, reduces concentration and purity decay, and provides high gas mixing accuracy. Impurity control can reach ppb~ppt levels. It is suitable for preparing highly corrosive, low-concentration, high-purity mixtures of hydrogen fluoride, hydrogen chloride, and hydrogen bromide used in semiconductors.

The present application relates to the technical field of deep treatment of brine for preparation of potassium hydroxide by electrolysis, and discloses a method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis, step one: introducing the brine discharged from the electrolysis procedure into a buffer homogenizing tank, mixing after stirring, proportionally shunting through a double-path variable frequency pump, and respectively conveying to a titanium-based electrolytic cell and a dechlorination raw material buffer tank, the titanium-based electrolytic cell being supplied with nitrogen until the oxygen content in the cell is ≤0.5%; step two: starting the power supply of the titanium-based electrolytic cell, setting the initial cell voltage, adjusting the current density through a rectifier, and simultaneously dynamically adjusting the electrolysis parameters based on the free chlorine concentration in the brine to control the hydrogen production. The method and operation system for removing chlorate produced in preparation of potassium hydroxide by ion-exchange membrane electrolysis can accurately control the generation and residual amount of chlorate in the electrolysis system, avoid the chlorate from passing through the ion-exchange membrane into the cathode to cause the chlorate in the finished product to exceed the standard, and significantly improve the purity and quality grade of the potassium hydroxide product.

The utility model belongs to the technical field of pneumatic conveying, and particularly relates to an inert gas pneumatic conveying system. When the reaction kettle is used, feeding is performed through the temporary storage hopper, negative pressure is generated through the roots vacuum pump, inert gas moves in the circulation pipeline, materials in the temporary storage hopper are conveyed into the transition hopper, the inert gas and the materials are separated through the gas-solid separator, and the materials enter the reaction kettle through the transition hopper. The inert gas is led to the roots vacuum pump along with the circulating pipeline and finally reaches the normal-pressure gas storage tank, the inert gas is continuously supplied to the temporary storage hopper, and if the first inert gas concentration detector detects that the concentration of the inert gas in the normal-pressure gas storage tank is too low, the inert gas is supplied to the normal-pressure gas storage tank through the high-pressure gas supplementing tank; the concentration of inert gas in the normal-pressure gas storage tank is kept stable; according to the system, cyclic utilization of inert gas is achieved, the using amount of the inert gas is reduced, and the cost of pneumatic conveying is greatly reduced.

This application relates to the field of textile disinfection technology, and in particular to an ozone concentration control method and system. The method includes: acquiring the initial air pressure value of the disinfection chamber and textile disinfection requirements; determining the target ozone concentration threshold and concentration maintenance duration based on the disinfection requirements parameters; calculating the target output rate of the ozone generating component by combining the initial air pressure value and the target ozone concentration threshold, and controlling the component to deliver ozone to the disinfection chamber at this rate; collecting real-time data on actual ozone concentration and air pressure changes within the chamber, and dynamically adjusting the ozone output rate based on the difference between the actual ozone concentration and the target threshold; determining whether the actual ozone concentration maintenance duration meets the required duration, and if it does, shutting down the ozone generating component and starting the exhaust component to exhaust air, and if it does not meet the requirement, continuously collecting data and dynamically adjusting the output rate. This application helps to accurately control the ozone concentration within the disinfection chamber, improving the safety and effectiveness of ozone disinfection of textiles.

A non-aqueous alkaline dyeing process device for polyester fabrics is disclosed, relating to the field of textile printing and dyeing equipment, and particularly to a dedicated process device for non-aqueous alkaline dyeing of polyester fabrics. The sealed dyeing vessel contains a fabric carrying device; the bottom of the sealed dyeing vessel is connected to the inlet of the liquid circulation system, and the outlet of the stirring circulation system is connected to the sealed dyeing vessel via a pipeline; the outlet of the sealed dyeing vessel is connected to the mixing port of the alkali and medium ratio control unit, and the mixed dye liquor is then returned to the sealed dyeing vessel via a pipeline; a temperature control system is located on the outer wall of the vessel and connected to a controller; through a sealed structure, precise proportioning, stable temperature and pressure control, roller carrying, and medium recovery, it achieves efficient, uniform, energy-saving, and environmentally friendly alkaline dyeing of polyester fabrics in a non-aqueous medium.

This invention relates to the field of soy milk preparation equipment and provides a constant-temperature, card-operated, fully automatic soy milk machine, comprising: a chassis, wherein a control cabinet, a refrigerator compressor, a receiving area, and a refrigeration area are distributed within the chassis, and the refrigeration area is further provided with a pulping area and a recessed residue-water separation area; a card-operated area is also provided on the chassis; a pulping module for preparing soy milk, wherein the pulping module is located within the pulping area, and a storage module for storing soy milk is provided within the receiving area; the receiving area also has a cavity for placing a container, and the cavity is located below the storage module; and a waste discharge module for discharging soy residue and washing wastewater, wherein the waste discharge module is located within the residue-water separation area. This invention is generally safe, reliable, and highly user-friendly, and can be widely adapted to public environments such as communities, canteens, and hospitals, providing users with convenient, healthy, and economical soy milk supply services.

The application discloses an abrasive water jet generation system, and belongs to the technical field of abrasive water jet. The system comprises a jet generation main body integrated on a tracked walking chassis, a vibrating screen module, a cyclone separation module and a sewage sedimentation tank. The jet generation main body forms a strong cyclone by a water injection pump to a sand mixer circumferential tangential water inlet, and combines the design of a mixing plate on the inner wall to make the abrasive and water fully and uniformly mixed, and then a discharge pump and a booster pump output stable jet. The system also screens, cyclone separates and deposits the used abrasive-containing wastewater and rocks, realizes the recycling and recycling of the abrasive and water. The application effectively improves the abrasive mixing uniformity and jet quality, and significantly reduces the consumption of water and abrasive through closed-loop recycling, and is suitable for mobile high-efficiency rock breaking operation in mine, tunnel and other scenes.

The invention relates to the technical field of auxiliary equipment of medical instruments, in particular to a device for uniformly mixing anesthetic gas and detecting the concentration of the anesthetic gas, and aims to solve the problems of low mixing efficiency, complicated maintenance and the like in the prior art. And efficient primary mixing of anesthetic gas is realized. The uniform mixing cylinder can integrate a diffusion cavity, an ultrasonic vibration unit and a heating device, and a multi-dimensional synergistic uniform mixing system is formed through instantaneous negative pressure diffusion, high-frequency vibration layering breaking and thermal disturbance enhanced molecular movement. The device is of a modular detachable structure, core components are in sealed connection through threads, and stability and maintenance convenience are improved. The whole structure is compact, gas paths are coaxially arranged, mixing time consumption is effectively shortened, the concentration detection response speed is increased, it is ensured that the output gas concentration is uniform and stable, and the device is suitable for operating rooms, intensive care units and other scenes.

The invention discloses a human epidermal growth factor temperature-sensitive sustained-release gel as well as a preparation method and application thereof, and belongs to the technical field of biological pharmacy. The preparation method of the human epidermal growth factor temperature-sensitive sustained-release gel comprises the following steps: S1, adding poloxamer and a thickening agent into purified water, and uniformly mixing to form a gel matrix; s2, respectively preparing a human epidermal growth factor solution and a chitosan-sodium tripolyphosphate colloid, and adding the human epidermal growth factor solution into the chitosan-sodium tripolyphosphate colloid for adsorption to obtain the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factor; s3, adding the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factors, a humectant and a stabilizer into the gel matrix, and adjusting the pH value. The gel can realize stable loading and controllable slow release of the human epidermal growth factor, so that the administration frequency and repeated administration operation are reduced, and the gel has important application value in treatment of refractory wounds.

The utility model relates to a soldering flux spraying system which is used for spraying soldering flux to an object to be welded. The soldering flux spraying system comprises a soldering flux storage tank, a soldering flux nozzle, a spraying pump and a soldering flux recovery tank; the spraying pump is connected with the soldering flux storage tank and the soldering flux spraying head through a spraying pipeline so as to be used for pumping soldering flux in the soldering flux storage tank and conveying the soldering flux to the soldering flux spraying head. The soldering flux recovery tank is arranged below the soldering flux spray head and is communicated with the soldering flux storage tank so as to be used for receiving dripping soldering flux and enabling the soldering flux to flow back to the soldering flux storage tank; the soldering flux spraying system further comprises a flushing sub-path, and the flushing sub-path is connected with the soldering flux storage tank and the soldering flux recovery tank so that soldering flux in the soldering flux storage tank can be obtained to flush the soldering flux recovery tank. According to the soldering flux spraying system, the problems of soldering flux waste, concentration change and inconvenient system cleaning caused by precipitation of the soldering flux in the recovery process can be solved.

The present application relates to the technical field of tobacco production, and provides a wet dust collector, which comprises a dust removal cylinder, a flue gas inlet installed at the lower part of the dust removal cylinder, and a spraying component installed in the flue gas inlet and used for spraying washing liquid into flue gas, a fan is installed at the top of the dust removal cylinder, and a flue gas outlet is installed on the fan; a micro-permeation liquid membrane assembly is arranged on the inner top of the dust removal cylinder, and the micro-permeation liquid membrane assembly is connected with an inner cavity water supply assembly installed on the inner top of the inner wall of the dust removal cylinder; the micro-permeation liquid membrane assembly comprises a cylindrical sleeve arranged on the inner top of the dust removal cylinder and a sealing ring used for connecting the cylindrical sleeve with the inner cavity water supply assembly. In use, through the cooperation of variable-pitch spiral agglomeration and micro-permeation liquid membrane capture, the present application actively promotes the agglomeration and weight gain of superfine smoke dust, the micro-permeation liquid membrane provides a stable and reliable final capture surface, and the combination of the two ensures that the outlet smoke dust concentration is stable and meets the increasingly strict ultra-low emission requirements of the tobacco industry.

This invention proposes a microneedle electrochemical biosensor and its fabrication method. The sensor comprises: a substrate and a glucose sensing electrode, a sodium penicillin sensing electrode, a sodium chloride sensing electrode, a reference electrode, and a counter electrode disposed on the substrate. Specifically: the glucose sensing electrode comprises a first graphite layer, a Prussian blue layer, and an enzyme immobilization layer stacked from bottom to top; the sodium penicillin sensing electrode comprises a second graphite layer and a β-lactamase immobilization layer stacked from bottom to top; and the sodium chloride sensing electrode comprises a third graphite layer, a signal conversion layer, and an ion recognition membrane layer stacked from bottom to top. This sensor selectively measures the concentrations of glucose, sodium penicillin, and sodium chloride, achieving high sensitivity and accuracy in detection.

The embodiment of the present application provides a kind of concentration control system of refrigerant water of air conditioner.The system includes: controller, dosing pump, medicine tank, refrigerant water pipeline, refrigerant evaporator and at least one sensor;Medicine tank is provided with refrigerant, and medicine tank is connected with refrigerant water pipeline;Dosing pump is connected with controller, for opening in response to dosing instruction sent by controller;Controller is connected with at least one sensor;Each sensor is arranged in the inside of refrigerant water pipeline;Controller is used to obtain the refrigerant concentration measured by at least one sensor;If it is determined that the refrigerant concentration is less than the first preset concentration value, generate dosing instruction, and send to dosing pump;Refrigerant water pipeline is connected with refrigerant evaporator, and refrigerant water in refrigerant evaporator exchanges heat with refrigerant of air conditioner.The system is used to achieve the effect of automatic monitoring and control of the refrigerant concentration of refrigerant water of air conditioner, improve the control efficiency of the concentration of refrigerant water of air conditioner.

The utility model provides a parallel operation type continuous anesthesia device for mass animal experiments, which relates to the technical field of animal experiment instruments and comprises a box body, at least two through holes are arranged at the front end of the box body, and the through holes are hermetically connected with guide parts through mounting grooves. A variable-diameter contact piece is arranged at one end of the guide piece and used for tightly wrapping the neck of the animal; a guiding cavity and a guiding rope are arranged in an opening in the middle of the flexible cover, and the opening can be tightened by pulling the guiding rope to achieve sealing. By means of the design of'head and body separation ', the head of an experimental animal continuously inhales anesthetic gas in the box body, and limbs are led out of the box body for operation. By means of the structure, synchronous anesthesia and parallel limb operation of a plurality of animals are achieved, experiment efficiency is remarkably improved, anesthesia gas leakage is effectively blocked, continuity and stability of the anesthesia process are guaranteed, and animal stress response and personnel occupational exposure risks are reduced.

This invention discloses a high-temperature, high-dust-content flue gas purification device, relating to the field of flue gas purification technology. The device includes an adjustable purification structure comprising multiple ceramic filter elements. SCR catalyst components are coated on the surface of each ceramic filter element. A swirling ammonia injection grille is installed at the inlet end of each ceramic filter element. An attitude adjustment mechanism is connected to the purification structure. A PLC control system is electrically connected to the attitude adjustment mechanism, which controls the ceramic filter elements of the purification structure to switch between vertical, inclined, and parallel settings. In the vertical setting, flue gas passes through the filter element in a straight line from top to bottom or bottom to top. In the inclined setting, flue gas passes through obliquely, forming a "Z"-shaped path. In the horizontal setting, flue gas flows laterally through the filter element, and particulate matter is deposited downwards under gravity. This invention solves the problem of low removal efficiency of fine particulate matter, achieving highly efficient purification of high-temperature, high-dust-content flue gas, and is particularly suitable for treating high-emission flue gas under complex operating conditions.

The utility model relates to the technical field of dilute brine preparation, in particular to a dilute brine preparation device of a sodium hypochlorite generator. Comprising a water inlet pipe connected with a water softener, the other end of the water softener is connected with a jet device through a first feeding pipe, a spiral blanking machine is connected with the other inlet of the jet device through a second feeding pipe, and the outlet end of the jet device is communicated with a dilute brine tank through a discharging pipe; a spiral blanking machine is adopted for automatically metering and controlling the adding amount of solid salt, a jet device with softened water as a power water source is arranged, the principle that the jet device sprays at a high speed and forms negative pressure is utilized, the salt from the spiral blanking machine is sucked into the jet device, efficiently mixed and dissolved in the jet device and forcibly dissolved again in a secondary mixer, and then the salt is fed into the secondary mixer. And finally, accurate 3-5% dilute brine is obtained.