222 results about "Dilution" patented technology

The invention provides a dilution refrigeration system adopting modularized parallel connection, and relates to the technical field of mK-level dilution refrigeration, the dilution refrigeration system comprises a plurality of dilution refrigeration units and a transmission pump set, the plurality of dilution refrigeration units share one transmission pump set, and each dilution refrigeration unit is characterized in that a 3He concentration phase and a 3He dilution phase are stored in a mixing chamber; the evaporation chamber is communicated with a 3He dilution phase and is used for separating 3He steam from the 3He dilution phase; the gas flow adjusting device is connected between the evaporation chambers and the transmission pump set, the transmission pump set extracts at least one part of 3He steam in each evaporation chamber, and the gas flow adjusting device partially receives the 3He steam output from the transmission pump set and at least partially liquefies the 3He steam received from the transmission pump set to form 3He fluid flowing back to the mixing chamber; the multiple gas flow adjusting devices of the multiple dilution refrigeration units adjust the pipe diameters of the respective gas pipelines correspondingly, so that the 3He fluid flowing back to the mixing chambers of the multiple dilution refrigeration units is subjected to the same resistance.

Apparatus, systems, and methods for diluting aerosolized high-melting-point solution. A dilution apparatus intakes a flow of aerosolized form of the high-melting-point solution and a flow of inert gas into a continuous multi-chamber volume. The continuous multi-chamber volume comprises an introductory chamber and an expansion chamber that is cross-sectionally larger than the introductory chamber. The dilution apparatus mixes the aerosolized form of the high-melting-point solution with the inert gas in the expansion chamber to dilute the aerosolized form of the high-melting-point solution and channels a portion of the diluted aerosol to a dilution passage.

The invention relates to an automatic solid chemical dilution device and a control method, the automatic solid chemical dilution device comprises a dissolving and stirring assembly, a material adding assembly, a pure water supply assembly, a nitrogen supply assembly, a detection and storage assembly and a control system, and the control system is electrically connected with the above assemblies. According to detection data of the liquid level height detection device, the electronic scale and the conductivity concentration meter, the adding amount, the adding speed and the stirring process of pure water and solid chemicals are automatically controlled, automatic deviation correction is executed when the detected concentration deviates from a target, and the diluent is fed into a finished product tank for storage when the concentration of the diluent is qualified. The automatic dilution device for the solid chemicals can realize automatic control of the whole dilution process, ensures the concentration stability and the dissolution uniformity, improves the production efficiency and the safety, and is suitable for the field with high requirements on solution precision and safety.

The invention provides a high-efficiency concentrated sulfuric acid automatic dilution device, and belongs to the technical field of concentrated sulfuric acid dilution. Comprising a dilution tank, a concentrated sulfuric acid storage tank is assembled in the dilution tank, a partition plate located above the top of the concentrated sulfuric acid storage tank is fixedly connected in the dilution tank, concentrated sulfuric acid output channels which are evenly distributed are formed in the bottom of the concentrated sulfuric acid storage tank, and the partition plate is sleeved with a water supply pipe, a concentrated sulfuric acid input pipe and a balancer. And the partition plate is movably connected with a first rotating shaft rod and a second rotating shaft rod through bearings. According to the scheme, the concentrated sulfuric acid storage tank and the pushing assembly are arranged, so that the efficient concentrated sulfuric acid automatic diluting device can output concentrated sulfuric acid from multiple points below the water surface in the diluting tank, and dissipation of the concentrated sulfuric acid caused by water vapor generated by high temperature generated when the concentrated sulfuric acid is mixed with water on the water surface is effectively avoided; the safety in the concentrated sulfuric acid dilution process is improved, and the concentrated sulfuric acid resource is effectively saved.

The invention discloses a method for synthesizing iron phosphate from iron oxide red, and belongs to the technical field of iron phosphate. The method comprises the following steps: (1) diluting concentrated phosphoric acid to obtain 45-70wt% phosphoric acid, using pure water as a diluent, and recovering washing liquor and / or recovering filtrate; (2) dissolving iron oxide red in 45-70wt% phosphoric acid with the weight 4-8 times that of the iron oxide red, and stirring and dissolving at 75-95 DEG C for 1-4 hours; (3) performing solid-liquid separation, taking filtrate, heating the filtrate to 50-70 DEG C, adding pure water of which the weight is 0.7-1.5 times that of the filtrate, and continuously heating the filtrate to 90-100 DEG C at the heating speed of 0.8-1.5 DEG C / min; after the solution is changed from red to powder white, continuously carrying out heat preservation reaction for 2-5 hours; (4) carrying out solid-liquid separation to obtain recovered filtrate; washing the filter residues for 1-2 times, wherein pure water which is 8-15 times of the filter residues is used for washing each time; combining the washing liquor to obtain recycled washing liquor; and (5) drying the washed filter residues to obtain iron phosphate.

The utility model discloses dilution equipment for refined concentrated sulfuric acid, which relates to the technical field of dilution of refined concentrated sulfuric acid and comprises a shell mechanism, a flow guide mechanism is fixedly connected inside the shell mechanism, a stirring mechanism is arranged on the shell mechanism, the flow guide mechanism comprises a U-shaped inclined plate, a baffle is fixedly connected onto the U-shaped inclined plate, and the stirring mechanism is arranged on the U-shaped inclined plate. The discharging end of the U-shaped inclined plate is fixedly connected with a funnel, and the output end of the funnel is fixedly connected with an L-shaped flow guide pipe. Concentrated sulfuric acid is poured from the U-shaped inclined plate, enters the funnel along the U-shaped inclined plate, then enters the L-shaped flow guide pipe and finally enters the conical discharging cover, the concentrated sulfuric acid enters the diluting barrel through the discharging hole, and in the flowing process of the concentrated sulfuric acid, the baffle can prevent the concentrated sulfuric acid from splashing when the concentrated sulfuric acid is poured out. The buffer plate can prevent the concentrated sulfuric acid from directly falling into the bottom of the L-shaped flow guide pipe, so that the flowing stability of the concentrated sulfuric acid is improved, and the dilution safety is improved.

The application discloses a dilution pretreatment detector for ion chromatography detection of underground water and a method thereof, and relates to the technical field of water quality detection.The detector comprises a supporting shell, a dilution liquid storage cylinder is arranged in the supporting shell, an underground water storage cylinder is arranged in one side of the supporting shell, and a stirring dilution cylinder is connected to the bottom of the underground water storage cylinder and the dilution liquid storage cylinder.A series of structures are arranged, which can effectively avoid impurities from accumulating in the filter screen and the cylinder, greatly improve the impurity removal rate, provide high-purity samples for subsequent ion chromatography detection, reduce the risk of pipeline blockage and instrument damage, ensure that the sample concentration after dilution fully meets the ion chromatography detection requirements, significantly improve the accuracy and stability of the detection results, greatly improve the continuity and work efficiency of the underground water sample pretreatment, adapt to batch sample detection requirements, facilitate deep maintenance and component replacement, shorten equipment maintenance time, and reduce use and maintenance costs.

Provided is a method for producing a chlorous acid water preparation in which chlorous acid water, chlorous acid as a main effective component thereof, and chlorine peroxide radicals as active molecular species thereof have been more efficiently stabilized in the liquid at ordinary temperature in high and low concentrations. The method is for producing a chlorous acid water preparation having a predetermined content (in terms of chlorous acid (HClO2=68.46)), and comprises: (1) preparing a buffer solution; (2) obtaining the concentration of the buffer solution; (3) preparing chlorous acid water; (4) obtaining a content in the chlorous acid water (in terms of chlorous acid (HClO2=68.46)); (5) obtaining an amount of the buffer solution required for dilution, from the content in the chlorous acid water (in terms of chlorous acid (HClO2=68.46)) and the predetermined content (in terms of chlorous acid (HClO2=68.46)); and (6) diluting the chlorous acid water with said amount of the buffer solution to produce a chlorous acid water preparation having the predetermined content (in terms of chlorous acid (HClO2=68.46)).

The present invention belongs to the technical field of gas dilution ratio, and in particular relates to an automatic proportioning device for standard gas dilution, including a housing. An air outlet pipe is fixedly installed through the front side of the housing, and an air supply pipe 1 and four air supply pipes 2 distributed in a rectangle are fixedly installed through the rear side of the housing. A circular box is fixedly installed inside the housing, and a gas supply mechanism is provided inside the circular box. The gas supply mechanism divides the inside of the circular box into four dilution mechanisms, and the four dilution mechanisms are respectively communicated with the corresponding air supply pipes 2. By diluting four kinds of detection gases with a dilution gas, the present invention can not only reduce the cost of purchasing standard gases, but also eliminate the need for manual detection processes that require multiple venue conversions. One person can use four different concentration gases to perform corresponding detection and calibration on gas detector equipment, avoiding missed detections and repeated detections.

Provided herein are systems and methods for recovering solvent from a contaminated effluent. In some embodiments, a system includes: a dilution entrochemical array (ECA) comprising at least one entrochemical amplifier (EA) unit configured to concentrate a first contaminated effluent and dilute a first draw solution; a distillation ECA fluidically coupled to the dilution ECA, the distillation ECA comprising at least two EA units configured to separate the first diluted draw solution into a distilled solvent and the first draw solution, concentrate a second contaminated effluent, and dilute a second draw solution; and a regeneration ECA fluidically coupled to the distillation ECA, the regeneration ECA comprising at least two EA units configured to concentrate a third contaminated effluent and the second diluted draw solution and dilute a third draw solution. The distilled solvent is recovered from the contaminated effluent.

A dilution tank for gas well medicament mixed filling comprises a dilution tank body and a pump, the upper portion of the dilution tank body is a medicament box body, the lower portion of the dilution tank body is a water box body, the bottom of the medicament box body is an inclined plane, the lowest position of the inclined plane is connected with a liquid outlet pipe, the top of the medicament box body is connected with a liquid inlet pipe, and the top of the medicament box body is provided with a spraying system; the side face of the bottom of the water tank is connected with a liquid outlet pipe. The side face of the top of the water tank is connected with a liquid inlet pipe. An inlet of the pump is connected with a liquid outlet pipe of the water tank body and an external pipeline, and an outlet of the pump is connected with a liquid inlet pipe of the water tank body, a liquid inlet pipe of the medicament tank and the spraying system. The whole device adopts closed configuration, so that peculiar smell is not easy to diffuse; the medicament box body is arranged on the upper half part of the diluting tank, the bottom of the medicament box body is inclined, a liquid outlet is formed in the lowest inclined position, the residual liquid amount after medicament filling can be extremely low due to the arrangement of the medicament box body, and cleaning liquid after cleaning can be completely discharged out of the medicament box body.

The utility model relates to an efficient integrated on-line diluting device, which belongs to the technical field of diluting devices and comprises a diluting device body and a control panel, a diluting mechanism is arranged outside the diluting device body, and an auxiliary component is arranged on the left side of the diluting device body. The diluting mechanism comprises a stirring assembly fixedly connected with the diluting device body, the top of the diluting device body is fixedly connected with a liquid storage tank, and the top of the diluting liquid storage tank is fixedly connected with a liquid inlet pipe. According to the efficient integrated online dilution device, by arranging the dilution mechanism, a user can conveniently pre-feed a solvent, the dilution efficiency of the dilution device on the solvent is improved, dilution treatment on the solvent is facilitated, and the problem that in the process of diluting the solvent, after a diluent in the dilution device needs to be completely discharged, the solvent cannot be completely diluted is solved. And the problems that the solvent is not convenient to pre-feed and the dilution efficiency of the dilution device on the solvent is influenced are solved.

The invention relates to a device (1) and a method for producing hydrogen (16) and oxygen (9) comprising the steps of: a) producing an electrolysis gas (3) containing hydrogen (16) and oxygen (9) by electrolysis of water using an electrolyte medium (4); b) diluting the electrolysis gas (3) with a dilution fluid (6) to obtain a diluted mixture (7) whose composition is outside an explosive range; c) separating at least some of the oxygen (9) or at least some of the hydrogen (16) from the diluted mixture (7).

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.

The present invention relates to the technical field of chemical detection, and specifically relates to a chemical PH acidity detection and analysis instrument, which includes a base. A dilution assembly is arranged on the base. The dilution assembly includes dilution barrels. Two dilution barrels are fixedly connected to the base. A circular shell is fixedly connected between the two dilution barrels. Two liquid inlet holes are provided on the circular shell, and the two liquid inlet holes are respectively located inside the two dilution barrels. A turntable is rotatably connected inside the circular shell. A liquid storage tank is provided on the turntable, and a cavity and a one-way valve are arranged inside the turntable. The one-way valve is located between the liquid storage tank and the cavity. A liquid inlet tank is fixedly connected to the base, and the liquid inlet tank is communicated with the inside of the cavity. A detection assembly is arranged on the base. The detection assembly includes a bracket. The bracket is fixedly connected to the base. A telescopic motor is fixedly connected to the bracket. A lifting seat is slidably connected to the bracket; the present invention can dilute chemical raw materials in two times, reduce the danger in the detection process through dilution, and indirectly measure the PH value of the raw materials.

To provide a diluent storage container with a double-cap structure enabling easy one-touch opening / closing of a necessary cap portion without misoperation, while preventing contamination during the process.SOLUTION: A diluent storage container 10 includes: a container body 20 capable of storing a prescribed amount of diluent; a substantially cylindrical base cap 30 to be attached to an opening end 24 of the container body; an inner lid 40 openably / closably connected to the base cap via a hinge 41; and an upper lid 50 openably / closably connected to the inner lid via a hinge 51. A flange part 47 for opening the inner lid and a flange part 55 for opening the upper lid are provided at opposing positions substantially 180 degrees apart, so that the operation to open the inner lid for injecting a specimen sample into the container body and the operation to open the outer lid for dispensing a diluted sample from the container body into a petri dish, etc. can be performed reliably and without error.SELECTED DRAWING: Figure 4

The application provides a dirt cleaning device and a cleaning system, and relates to the technical field of mask processing. The dirt cleaning device comprises: a stage, which is used for placing a product to be cleaned; a liquid control device, which is used for adding a reaction liquid to an abnormal area of the product to be cleaned, the reaction liquid being used for removing dirt in the abnormal area; a dilution device, which is used for adding a dilution liquid to the abnormal area; and a liquid adsorption device, which is used for adsorbing liquid on the product to be cleaned. The dirt cleaning device processes the abnormal area of the product to be cleaned, so that the reaction liquid stays in the abnormal area for a period of time, and then the process of adsorption, dilution and re-adsorption is performed, thereby removing dirt on the surface of the product to be cleaned. The number of times of cleaning the whole product to be cleaned can be reduced, the use of a cleaning machine and an inspection machine can be reduced, the processing time of dirt can be reduced, the success rate of dirt processing can be improved, and the product delivery rate can be improved.

The invention relates to the field of chemical analysis and detection, in particular to a method for rapidly detecting the concentration of industrial concentrated acid based on neutralization reaction, which comprises the following steps: 1, theoretical calculation; converting molar concentration according to acid density and mass fraction; 2, accurately measuring the volume of target acid by using a pipette; 2, injecting 100-150ml of pure water into the triangular flask, and adding 3-5 drops of phenolphthalein; 3, slowly injecting an acid sample into the triangular flask, and slightly shaking and uniformly mixing; 4, adding 10.00 ml of NaOH solution by using the pipette, and oscillating for 10-20 seconds; 3, result interpretation: transparency and colorless: acid is excessive when the acid concentration reaches the standard, pH is less than or equal to 8.2 after neutralization, pink lasts for 20-30 seconds, and reinspection is needed when the acid concentration is insufficient and the pH is greater than or equal to 8.3. The method has the beneficial effects that 1, a reverse judgment method is adopted, namely the conventional end-point titration is replaced by fixed alkali amount, so that the detection time is shortened to 2 minutes; 2, safety design: pre-dilution reduces the risk of acid mist, and only a trace amount of raw acid is needed to avoid acid corrosion; 3, multi-acid adaptation: compatibility with detection of different types of concentrated acids is realized through pipetting volume adjustment;

The utility model relates to the technical field of dispersing agent dilution, and discloses a dispersing agent diluting and filtering device which comprises a diluting barrel, two stirring rods are rotatably connected in the diluting barrel, the two stirring rods are both vertically arranged and are both rotatably connected to the inner wall of the diluting barrel, a first fixing ring is fixedly connected in the diluting barrel, and a second fixing ring is fixedly connected in the diluting barrel. The first fixing ring is horizontally arranged, the two stirring rods are both arranged at the bottom of the first fixing ring, a rotating mechanism for rotating the two stirring rods is arranged in the dilution barrel, and a filter barrel is placed in the center of the interior of the dilution barrel and is vertically and slidably connected to the center of the interior of the first fixing ring. Through the arrangement of the filter barrel, a placed dispersing agent can be conveniently filtered, and meanwhile, the interior of the diluting barrel can be stirred in cooperation with rotation of the two stirring rods, so that the diluting effect on the dispersing agent is improved.

The utility model discloses an on-line water quality diluter, which relates to the technical field of water quality monitoring equipment and comprises a water sample cup for storing a water body to be detected; the water sample diluting cup is used for diluting a water body to be detected; the metering pump is connected with the water sample cup through a first pipeline, and the metering pump is connected with the water sample dilution cup through a second pipeline; the dilution water cup is connected with the dilution water pump, the dilution water pump is used for conveying dilution water into the dilution water cup, a first overflow port is formed in the top of the dilution water cup, and the first overflow port is connected with the water sample dilution cup; the inflation pump is used for conveying gas into the water sample dilution cup. According to the water quality online diluter, the technical problem that when the monitoring index of a pollution source exceeds the upper limit of the detection range of monitoring equipment, the index cannot be effectively monitored is solved, the application range of the water quality monitoring equipment is expanded by diluting the water body to be detected to a proper concentration interval, and the problem that the concentration of the water body to be detected exceeds the range is effectively solved.

The utility model relates to an anti-precipitation oscillation mixer for diluting a suspending agent, which belongs to the technical field of pesticide mixing devices and comprises a mixing tank, a main shaft is rotatably mounted in the mixing tank, stirring plates are fixedly connected to the periphery of the main shaft, a plurality of bottom stirring strips are fixedly connected to the bottom of the main shaft, and the plurality of bottom stirring strips are arranged at equal intervals. The stirring device has the beneficial effects that the stirring plate can be driven to rotate through the rotation of the main shaft, so that a suspending agent and liquid can be mixed and stirred by virtue of the stirring plate, and meanwhile, the bottom stirring strip below the main shaft can be driven to rotate, so that the suspending agent deposited at the bottom of the inner wall of the mixing tank can be stirred; a plurality of turning plates can be driven to rotate under the rotation of the rotating shaft, so that suspension liquid on the two sides of the fixing part can be quickly turned, and the anti-precipitation effect on the suspending agent is further improved.

The invention relates to the technical field of chemical detection, and discloses an automatic detection system for the pH value and concentration of an ammonium nitrate solution. The dilution module comprises a mixing tank, and the mixing tank is connected with the sampling valve through a pipeline; the input end of the condenser is connected with the mixing tank through a pipeline, and the condenser is used for cooling the diluent; the pH detection module comprises a cooling tank, the cooling tank is connected with the output end of the condenser through a pipeline, and a pH sensor is arranged in the cooling tank; through dilution and cooling treatment, the concentration and temperature of the ammonium nitrate solution are reduced, the service life of the sensor is prolonged, and the measurement precision is improved. The concentration detection module is used for detecting the concentration of the diluent based on a non-contact electromagnetic wave spectrum analysis method; the concentration is detected by adopting an electromagnetic wave spectrum analysis method, and interference and potential safety hazards of a traditional method are avoided. The real-time, continuous and automatic detection of the pH value and the concentration value of the ammonium nitrate solution is realized, and the production safety is ensured.

The utility model discloses a dilution tank for injection processing, which relates to the technical field of injection production, and comprises a tank body, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pump and a liquid discharge pump, the tank body is an arc-shaped bottom surface, the upper part of one side of the tank body is fixedly communicated with the liquid inlet pipe, the other end of the liquid inlet pipe is fixedly communicated with the liquid inlet pump, and the liquid discharge pump is fixedly communicated with the liquid outlet pipe. The lower end of the tank body is fixedly communicated with the liquid outlet pipe, and the liquid outlet pipe is fixedly communicated with the liquid discharge pump. The liquid inlet pipe is used for pumping a base solution (namely a diluted solution), a concentrated solution or powder needing to be diluted is poured into the corresponding material box, raw materials in the material box enter the material groove of the corresponding rotating roller, the concentrated solution (or the powder) is intermittently put into the tank body through rotation of the material groove, and due to the fact that the concentrated solution is discharged at a constant speed instead of being discharged at a time, the concentrated solution is discharged at a constant speed. The injection can be fully mixed with a base solution, the dilution uniformity is improved, and one or more raw materials can be mixed and diluted at the same time to form the injection.

The utility model discloses a demulsifying agent diluting device, which relates to the technical field of demulsifying agents and comprises a diluting tank, a diluting mechanism, a filtering mechanism, a detecting mechanism and the like. According to the device, solid impurities entering the demulsifier due to external factors or transfer devices inside the device are removed, the product weight of the diluted demulsifier is guaranteed, meanwhile, the filtering mechanism can remove impurities left after filtration on the upper surface of an aluminum plate, the filtering effect of the filtering plate is guaranteed, and the service life of the filter plate is prolonged. The device is further provided with a detection mechanism used for detecting the concentration of the demulsifying agent in the device, and meanwhile, the position of a demulsifying agent concentration sensor can be changed, so that a worker can collect the diluted concentrations of the demulsifying agent at multiple positions in the dilution tank, and after all the concentrations reach the preset concentration, dilution can be stopped, and the concentrations of the multiple positions can be collected; the effect is more accurate, errors are reduced, and the product quality is improved.

The utility model discloses a banner quantitative dilution water device which comprises a machine body, a first box body and a second box body, a motor is fixedly installed at the top end of the first box body, a stirring shaft is rotatably connected to the top end of the first box body, an installation ring is fixedly connected to the second box body, and a connecting ring is fixedly connected to the inner wall of the installation ring. The top end of the installation ring is fixedly connected with symmetrically-arranged installation frames, the two installation frames are both connected with hanging plates in a sliding mode, the opposite walls of the two hanging plates are both fixedly connected with extrusion plates, and the interiors of the two installation frames are both fixedly connected with springs. The use quality of the dilution water device is improved, and the stirring box can be decomposed through linkage of all the mechanisms, so that the purpose of conveniently cleaning the interior of the stirring box is achieved.

The utility model relates to the technical field of sulfuric acid diluters, in particular to a sulfuric acid diluter capable of enhancing mixing effect, which comprises a shell, a mixing component, an upper pressing plate and a lower pressing seat, the mixing component is arranged in the top of the shell, the upper end of the mixing component extends out of the shell, a plurality of layers of graphite blocks are arranged in the shell, and a plurality of dilution pipelines are arranged on the plurality of layers of graphite blocks. The upper pressing plate is arranged on the mixing assembly, and the lower pressing seat is mounted in the bottom of the shell; the mixing assembly comprises a flow gathering plate, a flow slowing cylinder and a flow dividing cylinder which are sequentially arranged from top to bottom, an overflow cylinder is arranged in the flow slowing cylinder, a plurality of layers of overflow holes are formed in the outer wall of the overflow cylinder, an overflow cavity is formed between the overflow cylinder and the flow slowing cylinder, the overflow cavity is communicated with the overflow holes, and the overflow cylinder is fixed to the flow dividing cylinder. According to the sulfuric acid diluter disclosed by the utility model, due to the arrangement of the mixing assembly, materials can be fed into the overflow cylinder through the first liquid pipeline on the flow gathering plate and the two inclined conveying pipelines on the two sides, so that the materials are mixed to enhance the mixing effect of the diluter.

The application discloses a free silicon dioxide determination pretreatment device, which comprises a liquid taking unit, a digestion unit, a dilution unit and a filtration unit. The liquid taking unit comprises a liquid taking pipe, the liquid taking pipe is connected with a reagent bottle and a reaction container, reagents in the reagent bottle flow into the reaction container through the liquid taking pipe; the reaction container is arranged in the digestion unit, the digestion unit comprises a temperature control module, the temperature control module is arranged on the side wall of the reaction container to perform heat transfer with the reaction container; the dilution unit is arranged in communication with the digestion unit, so that the solution in the reaction container flows into the dilution unit; the filtration unit is arranged below the dilution unit and is used for receiving the solution discharged from the dilution unit to perform filtration. The technical scheme of the application sets the automatic pretreatment device, so that the experiment process for detecting the free silicon dioxide content in dust by adopting the pyrophosphoric acid method is free from manual operation, and the difficulty of the experiment is reduced.

The invention relates to a system for preparing a disinfectant, comprising:-a dilution tank (300) provided with a water inlet (302) for injecting water; -an electrolysis device (100) arranged below the dilution tank (300) and comprising:-an electrolysis reaction chamber (110) for storing a solid alkali metal chloride,-a set of electrodes (120),-a conduit (200) for connecting the electrolysis reaction chamber and the dilution tank, in which:-water is injected into the electrolysis reaction chamber synchronously through the conduit in order to dissolve a portion of the solid alkali metal chloride while injecting water into the dilution tank,-the electrolysis reaction chamber (110) is separated from the dilution tank (300); and-electrolyzing the aqueous solution in the electrolytic reaction chamber to produce hypochlorous acid, at least part of the hypochlorous acid being migrated from the electrolytic reaction chamber to the dilution tank via the conduit, the migrated at least part of the hypochlorous acid being mixed and diluted with the water in the dilution tank to form the disinfectant.

A system for dissolving gases in an aqueous medium, which increases the percentage of dissolution of a gas in a liquid fluid, with low energy consumption with respect to oxygen dissolution, for the treatment of water for liquid industrial waste and / or mining, aquaculture, agriculture and / or dilution of gases in liquid fluids, comprising: a chassis with a chamber containing pressurized aqueous fluid and comprising: a fluid inlet and a fluid outlet, connected to their respective subsystems for supplying fluids and injecting aqueous fluid with at least one dissolved gas; a plurality of gas injection means located in the chamber; an ultrasonic transmission means connected to an ultrasonic transducer and turbulence generation means, the latter being located inside the chamber to maintain a turbulent regime and promote the mixing of the fluid with bubbles inside the chamber, the system also being compact, transportable and self-cleaning.

The utility model belongs to the field of alcohol dilution equipment, and particularly relates to a tank body for alcohol dilution, which comprises a shell, a tank body and a tank cover, the stirring shaft is arranged on the shell in the vertical direction, the stirring shaft and the shell are coaxially arranged, at least part of the stirring shaft extends into the stirring space, and the stirring shaft can rotate around the axis of the stirring shaft; the first spiral plate is strip-shaped and spirally arranged on the outer surface of the stirring shaft along a spiral track; the second spiral plate is in a long strip shape and is spirally arranged on the periphery of the stirring shaft along the spiral track, the spiral radius of the second spiral plate is larger than that of the first spiral plate, and the stirring shaft, the first spiral plate and the second spiral plate are coaxially arranged; and when the stirring shaft rotates, the first spiral plate and the second spiral plate synchronously rotate with the stirring shaft. According to the utility model, the stirred solution can circulate in the vertical direction and the horizontal direction in the tank body, so that the mixing efficiency can be obviously improved, and the dilution efficiency can be further improved.