96 results about "Solution flow" patented technology

The invention belongs to the technical field of micro-fluidic chips, and particularly relates to an integrated micro-fluidic card box. The device comprises a first solution storage part, an adsorption part, a second solution storage part and a reaction part, the bottom surface of the first solution storage part is rotationally connected with the top surface of the adsorption part, the bottom surface of the adsorption part is rotationally connected with the top surface of the second solution storage part, and the bottom surface of the second solution storage part abuts against the top surface of the reaction part; a second channel penetrates through the first solution storage part, a second runner is arranged on the adsorption part, and a second through hole penetrates through one end of the adsorption part; during single-sample nucleic acid detection, lysate feeding, cleaning liquid feeding, eluent feeding and sample loading share an exhaust channel formed by the second flow channel and the second channel, and the flow process of the solution can be controlled only by one driving pump; the driving pump and the external pipeline only discharge gas but not liquid, so that the solution is prevented from being remained when passing through the pump and the pipeline, and pollution is avoided; a plurality of micro-fluidic chips are communicated with the driving pump and the controller, so that a plurality of samples can be detected at the same time, and the detection efficiency is improved.

The utility model relates to the technical field of hydrocyclones, and discloses a hydrocyclone desilting nozzle which comprises a desilting nozzle body, a cone is fixedly installed at the top of the desilting nozzle body through a flange, a vortex chamber is fixedly installed at the top of the cone through a flange, and a cleaning mechanism is installed in the cone. The cleaning mechanism comprises a first mounting frame fixedly mounted on the top side in the cone, a guide cylinder fixedly mounted in the middle of the first mounting frame, and bearings fixedly mounted on the two sides of the outer wall of the guide cylinder. When a solution flows in the swirler in a spiral shape, the spiral blade arranged in the cone can rotate along with the flowing of the liquid, so that the rotating drum is driven to rotate, the flowing of the liquid is accelerated, the separation and classification speed of the solution can be accelerated, and the bottom scraping plate can be synchronously driven to rotate; particles attached to the inner wall of the desilting nozzle are cleaned, and the situation that coarse particles block the interior of the desilting nozzle, and the solution separation and classification efficiency is reduced is avoided.

The invention relates to the technical field of fluorine axial flow pumps, and discloses a clamping plate type fluorine axial flow pump with a self-cleaning function, which comprises a pump shell, a liquid outlet pipe arranged at the upper end of the pump shell, a liquid pumping pipe arranged on the side wall of the pump shell, and a filtering unit arranged on the side wall of the liquid pumping pipe and used for filtering solution impurities, the filtering unit comprises a self-cleaning part arranged on the side wall of the liquid pumping pipe; by arranging the self-cleaning part, when the filter plate is blocked, the pressure intensity of an impeller area can be continuously reduced along with rotation of an impeller, when the pressure intensity is reduced to a certain degree, the filter plate is driven to slide in the horizontal direction, the drainage box is communicated with a filter cavity and an inflow cavity in the sliding process, and the flowing path of a solution is changed, so that the solution flows into the drainage box; through the drainage component, the solution entering the filter cavity flushes impurities accumulated in front of the filter plate into the drainage box at a certain angle to be collected, once the filter plate is dredged, the pressure intensity at the impeller is increased, and the filter plate reset pump operates normally.

The heat pipe type direct evaporation water chilling unit based on solution dehumidification comprises a unit frame, a cold water tank used for storing a solution is perpendicularly fixed to the dead center of the interior of the unit frame, a heat pipe condenser is connected to the interior of the top end of the cold water tank in an inserted mode, and a heat dissipation and discharge assembly is arranged above the heat pipe condenser. An inner side perforated plate is tightly attached to the outer wall of the cold water tank, the outer wall of the inner side perforated plate is sleeved with an annular dehumidification ring used for providing a solution dehumidification space, a dehumidification assembly is arranged in the annular dehumidification ring, and the outer wall of the annular dehumidification ring is sleeved with an outer side breathable net plate; and an air control device is arranged in an air channel on one side wall surface of the unit frame. The annular liquid receiving tank efficiently recycles the solution which is not taken away by air through gradient design, the solution flows back to the cold water tank through a liquid return pipe and a pump to form closed-loop circulation, and solution waste is reduced.

A scale assessment system and a method for performing a scale deposit assessment that includes a scale solution flow loop. The scale assessment system also includes an insulated temperature controlled scale solution holding tank, a scale deposit assessment flow loop, a scale inhibitor flow loop, and / or a measurement and control unit configured to determine one or more of an amount of scale deposit in a plurality of connected U-shaped test pipes and an amount of scale inhibitor required to prevent scale deposit in the plurality of connected U-shaped test pipes.

The invention provides a heavy metal content intelligent monitoring method and system based on an intelligent sensor, and belongs to the technical field of sensor detection. According to the method, turbulent flow and bubble distribution are determined by obtaining the flow direction and the flow speed of a solution in a water-soluble fertilizer pipeline. And based on a Monte Carlo simulation algorithm, simulating the contact degree of the sensor probe and generating a contact degree distribution diagram, and accurately identifying an insufficient contact area to determine a first layout scheme. And according to the first layout and the flow direction, a detection angle is determined and scored, and when a preset angle adaptability scoring threshold is not reached, the detection angle is iteratively optimized by using a gradient descent algorithm. Determining a second layout scheme according to the optimized detection angle, constructing a finite element model by combining a finite element analysis method, determining a signal stability evaluation value, and optimizing to generate a third layout scheme if the signal stability evaluation value does not reach a preset threshold value, so as to ensure that the sensor probe can still stably capture signals under the dynamic flowing of the solution; the continuous automatic heavy metal accurate monitoring requirement of the water-soluble fertilizer is met.

The invention particularly discloses an application method of an efficient well flow unit for simulating a decompression wellbore in a three-dimensional finite element, and relates to the technical field of civil engineering precipitation. The method comprises the steps of firstly determining parameters such as a model calculation boundary, boundary conditions, permeability coefficients of soil layers, the position of a relief well and a water head; secondly, establishing a three-dimensional model to divide a delaunay tetrahedron unit grid, and simplifying a three-dimensional relief well into a one-dimensional well flow unit during modeling; then, on the basis of geometric properties of a tetrahedral mesh around a well flow unit and a unit flow weight coefficient, making a numerical solution equal to an analytical solution flow, and deducing to obtain a well flow unit water guide matrix; and finally, merging the well flow unit water guide matrix into the total stiffness matrix, and solving to obtain the high-precision flow of the decompression wellbore and the node water head of the model unit. According to the method, the calculation efficiency and the calculation precision are greatly improved, the precision is not changed in a large-grid-size model, the calculation time is greatly shortened, and the investment of calculation resources is reduced.

The invention belongs to the technical field of intelligent household appliances, and particularly relates to an intelligent household appliance after-sales service question and answer interaction method and device, equipment and a medium. According to the method, when a question message of a user is detected, a guide reply and a solution set corresponding to the question message are determined; sending a guide reply to the user, and receiving a first interaction message fed back by the user; based on the first interaction message, determining a target solution from a solution set, and feeding back the target solution to the user; according to the method, a guided solution flow can be provided for the user, and the interactive message is fed back based on the guided reply, so that the determination range of the solution can be narrowed, and the accuracy of the reply is improved.

This utility model discloses a freeze-dried floc filtration device with a sterilization mechanism, belonging to the technical field of freeze-dried floc processing. It addresses the problem in existing technologies where smaller pore sizes of the filter membrane improve the retention of bacteria and micro-impurities, but also increase resistance to solution flow, significantly reducing filtration speed and efficiency. The device includes a housing. Freeze-dried floc solution is injected into the housing through an inlet. A fan is activated, utilizing the pressure difference to create traction, driving the solution to flow downwards at higher speeds. The initially filtered solution comes into full contact with a high-precision filter membrane at the bottom. This membrane precisely traps bacteria, microorganisms, and other micro-pollutants in the solution. The continuous suction from the fan allows the solution to quickly penetrate the membrane, shortening the filtration time and improving efficiency.

The present invention relates to the technical field of fluorine material axial flow pumps, and discloses a clamping plate type fluorine material axial flow pump with a self-cleaning function, including a pump casing, a liquid outlet pipe arranged at the upper end of the pump casing, a liquid extraction pipe arranged on the side wall of the pump casing, and a filtering unit for filtering solution impurities arranged on the side wall of the liquid extraction pipe. The filtering unit includes a self-cleaning component arranged on the side wall of the liquid extraction pipe; by arranging the self-cleaning component, when the filter plate is blocked, as the impeller rotates, the pressure in the impeller area will continue to decrease. When the pressure decreases to a certain extent, it drives the filter plate to slide horizontally. During the sliding, the drainage box is respectively connected to the filtering cavity and the inflow cavity, and changes the flow path of the solution so that the solution flows into the drainage box. Through the drainage component, the solution entering the filtering cavity flushes the impurities accumulated in front of the filter plate into the drainage box at a certain angle for collection. Once the filter plate is unclogged, the pressure at the impeller increases, the filter plate resets, and the pump operates normally.

The utility model belongs to the field of medical instruments, and discloses an ATP sampler which comprises a first sealing pipe, a second sealing pipe and a third sealing pipe, the first sealing pipe and the second sealing pipe are detachably connected in a sealed mode, and the second sealing pipe and the third sealing pipe are detachably connected in a sealed mode. A sealing disc and a liquid leakage disc are fixedly arranged in the second sealing pipe, the diameter of the sealing disc is smaller than the inner diameter of the second sealing pipe, and a plurality of connecting blocks are fixedly arranged between the outer edge of the sealing disc and the inner wall of the second sealing pipe; a plurality of liquid inlet holes are formed in the liquid leakage disc; a liquid storage cavity is formed in the third sealing pipe, a liquid outlet pipe communicated with the liquid storage cavity is fixedly arranged at the end, facing the second sealing pipe, of the third sealing pipe, and the end, away from the third sealing pipe, of the liquid outlet pipe abuts against the sealing disc in a sealed mode. According to the utility model, the mixed liquid can only flow out manually, so that the problem that the mixed liquid flows out due to external force factors is avoided, and the sensitivity and the stability of the mixed liquid are ensured; the device is used for sampling and detecting medical instruments, water quality or microorganisms and the like.

The utility model discloses a fluid pool for clamping a solid nanopore chip, belongs to the technical field of fluid pools, and aims to solve the problems that an existing device is complex in design and high in cost, the chip is easily damaged due to misoperation, the rapid liquid injection efficiency is low, a product is damaged due to repeated disassembly, and the service life and the detection effect are influenced. The sample adding device comprises an integrated sample adding pool, sample adding holes are symmetrically formed right above the two sides of the integrated sample adding pool, a push-pull type clamping groove is formed in the middle of the interior of the integrated sample adding pool, a groove is formed in the middle of the clamping groove, the nanopore chip is placed in the groove, a solution flows through a solution hole in the middle, and the nanopore chip is placed in the solution hole in the middle of the integrated sample adding pool. The left side and the right side of the integrated sample adding pool are respectively provided with a silver wire electrode interface located right above the integrated sample adding pool, and the silver wire electrode interfaces are located at the inner sides of the sample adding holes.

The utility model discloses a device for testing acid-base substance eluate in an organic membrane, which comprises a workbench, a support plate is fixedly mounted in the middle of the workbench, a mounting plate is fixedly mounted on the surface of one side of the support plate, and a plurality of groups of runner pipes arranged at equal intervals along the length are fixedly mounted on the surface of the mounting plate. The flow channel pipes are arranged along the length of the mounting plate at equal intervals, test ports are formed in the surfaces of the upper sides of the flow channel pipes, one end of each flow channel pipe downwards winds and is communicated with a water containing box, and the water containing boxes are placed at the top of the workbench. According to the invention, a plurality of flow channel pipes are arranged, so that relatively consistent solution flowing states and environmental conditions can be obtained at the test ports at different positions, and the accuracy and comparability of data when interaction between a wafer and a solution is tested at each test point can be ensured; and the wafer can be conveniently and accurately placed at a corresponding position for targeted testing.

Disclosed in the present invention is a microfluidic chip for analyte detection, comprising a chip body, a pressure applying cover body, and a gas discharging and solution blocking film. A flow distribution cavity, reaction cavities, and a sample loading cavity are formed in the chip body; the pressure applying cover body is connected to the sample loading cavity; the sample loading cavity is communicated with the flow distribution cavity by means of a sample loading flow channel, the flow distribution cavity is communicated with each reaction cavity by means of a solution distribution flow channel, and the reaction cavity is communicated with a gas discharging hole by means of a gas discharging flow channel; the gas discharging and solution blocking film covers gas outlets of the gas discharging holes; the pressure applying cover body comprises an air bag, and the sum of the volumes of the sample loading flow channel, the solution distribution flow channels, the gas discharging flow channels, the gas discharging holes, and the flow distribution cavity is larger than the volume of the air bag; and when the air bag deforms, a solution flows into the reaction cavities from the sample loading cavity. According to the present invention, pressure is increased in the sample loading cavity by means of the air bag or a rubber plug, and then the solution is pushed to enter the reaction cavities, so that a driving method in the prior art is replaced, and the production cost is reduced.

This invention discloses a solid-phase extraction flow rate measuring device, including a sample solution flow rate measuring device that cooperates with a liquid-solid extraction column. The sample solution flow rate measuring device includes a container filled with sample solution, and an outlet is integrally provided at the bottom of the container, connected to and fixed with a transparent box. This invention, through a series of structural features, facilitates automatic adjustment of the sample loading flow rate according to requirements, and alerts personnel during adjustment, eliminating the need for multiple manual adjustments and judgments. This improves the automation, accuracy, and ease of use. Furthermore, by detecting and automatically adjusting the flow rate, it can accurately and automatically measure and control the flow rate, avoiding the phenomenon of rapid filling of the liquid-solid extraction column due to high flow rates or delays in experimental time due to slow flow rates. Finally, it can automatically alarm to remind personnel when the sample solution in the container is used up, facilitating replenishment and further improving the effectiveness of the application.

The invention belongs to the technical field of crystal growth, and particularly relates to an ultrahigh pressure kettle container which comprises a segmented heater and a kettle body installed in the segmented heater, a bottom sealing plug piece and a top sealing plug piece are installed at the top and the bottom of the kettle body respectively, and a pressure relief heat dissipation assembly is installed on the top sealing plug piece; a baffle is installed in the kettle body and divides the inner space of the kettle body into a crystallization area and a dissolution area, the outer wall of the crystallization area is attached to an upper heat conduction cylinder, the outer wall of the dissolution area is attached to a lower heat conduction cylinder, and the segmented heater conducts heat to the crystallization area and the dissolution area through the upper heat conduction cylinder and the lower heat conduction cylinder. The length of the dissolving area is adjusted through the heat insulation assembly, the solution dissolving efficiency is improved, and meanwhile the solution flow speed is increased; the thermal insulation assembly reduces the length of the temperature difference section, inhibits solution convection, slows down the speed of solution entering and exiting a crystalline region, prevents impurities from being wrapped in crystals, and improves the purity of the crystals. Under the complementary action of the two, the solution convection in the earlier stage forms balance.

The utility model discloses a collagen solution storage device relates to solution storage device technical field, including tank body and tank cover, tank body outer surface obverse side is fixedly connected with the observation window, tank cover upper surface both front and back are provided with sampling subassembly, tank cover right side both front and back are fixedly connected with the feed pipe, the feed pipe passes through the tank cover right side both front and back, and the feed pipe passes through the tank cover. And discharging pipes are fixedly connected to the front side and the rear side of the lower portion of the outer surface of the tank body in a penetrating mode correspondingly, and valves are arranged on the outer surfaces of the feeding pipe and the discharging pipes correspondingly. Through the arrangement of the frame-shaped rubber plate and the semicircular rubber block, the contact between the plate block and the frame-shaped rubber plate has a sealing effect, and through the action of the collecting cylinder and the connecting rod, the collagen sampling device can conveniently extend into the tank body to sample a collagen solution; through the arrangement of the structure, a collagen solution in the tank body can be conveniently sampled, and the possibility that excessive collagen solution flows out and is wasted cannot be caused, so that the effect that the operation is simple and convenient is achieved.

The invention discloses an injection mold with an automatic internal stress eliminating device, and relates to the technical field of injection molds. The mold comprises a mold machine table, a control panel is fixedly connected to the side face of the mold machine table, a supporting rod is fixedly connected to the top of the mold machine table, a top plate is fixedly connected to the top of the supporting rod, a hydraulic cylinder is fixedly connected to the top of the top plate through a bolt, and a protection box is fixedly connected to the top of the mold machine table; and a protective cover is clamped at the top of the protective box. Injection molding and internal stress elimination integrated design is achieved through the hot solution auxiliary elimination conveying device, the hot solution is stably conveyed for internal stress elimination through cooperation of the motor, the gear pump, the conveying pipe and other components, the mold functionality is improved, and the hot solution circulation is efficient and economical; the hot solution uniformly acts on a forming area, internal stress elimination uniformity is guaranteed, meanwhile, the hot solution can be recycled, and resource waste is reduced.

This invention discloses an online dynamic continuous flow mixer with detection feedback function, relating to the biopharmaceutical field. It includes a distributor at the bottom, a mixer positioned above the distributor, and a motor fixed above the mixer. The distributor housing has two liquid inlets, which are connected to two internal guide pipes via distributor pipes. The mixer includes a cylindrical housing and an internal threaded rod, with a cavity between the internal threaded rod and the cylindrical housing for solution flow and mixing. A solution outlet is located at the top of the cylindrical housing. Multiple solution parameter sensors measure the results to adjust the solution flow direction and reflux, ensuring uniform solution mixing. A PID controller controls the motor and pump to keep the solution pressure and flow rate within a preset range. This invention solves the problems of existing mixers, such as large size, high leakage risk, complex operation, high shear force, and inability to accurately control the mixing degree and rate.

The utility model relates to the technical field of chemical engineering water treatment, in particular to an efficient filtration and purification device for iron-free aluminum sulfate, which comprises a base, the base is a bearing carrier of the device, a sedimentation tank is fixedly mounted on the top surface of the base, a liquid inlet pipe is arranged and communicated with one side of the sedimentation tank, and a liquid outlet pipe is arranged on the other side of the sedimentation tank. The other side of the sedimentation tank is provided and communicated with a liquid outlet pipe, and the sedimentation tank is used for filtering impurities in a solution and precipitating flocs; the device further comprises a first partition plate, the first partition plate is fixedly arranged on one side of the interior of the sedimentation tank, and a second partition plate is fixedly arranged on the other side of the interior of the sedimentation tank. The sedimentation tank is divided into three sedimentation compartments in different stages through the partition plate I and the partition plate II, and the solution circulation notches are formed in the opposite sides of the tops of the compartments, so that a solution is precipitated step by step in the sedimentation tank, the sedimentation efficiency is improved, the inclined plate frame in each compartment is matched, the flowing path of the solution is changed, and the particle sedimentation opportunity is increased; the sedimentation effect of the floccules is further improved.

The utility model provides an acid mixing system for improving DHF concentration stability, which comprises a mixing tank used for mixing a first solution and a second solution; one end of the first supply pipeline is connected with a first solution source, the other end of the first supply pipeline is connected to the mixing tank, a first valve and a first flow meter are arranged on the first supply pipeline, and the first solution flows through the first flow meter and then flows through the first valve; one end of the second supply pipeline is connected with a second solution source, the other end of the second supply pipeline is connected to the mixing tank, and a second valve and a second flow meter are arranged on the second supply pipeline; and the feedback control module is used for receiving a flow signal monitored by the first flow meter and controlling the opening degree of the first valve according to the flow signal. The feedback control module receives a flow signal of the first flow meter and controls the opening degree of the first valve, so that the flow of the first solution is accurately regulated and controlled, the mixing proportion change is reduced, and the DHF concentration stability is remarkably improved.

The utility model relates to the technical field of printing machines, and provides a printing machine water-cooling fountain solution flow blocking device which comprises a water tank, a water control assembly is arranged in the water tank and comprises a threaded rod, the threaded rod is rotationally installed on one side of the water tank, and an intercepting plate is arranged in the water tank in a sliding mode. The water flow path can be changed according to the position of the intercepting plate in the water tank, when wide products are cooled, due to the fact that the heating area of the roller is large, the water flow circulation path can be shortened, short-path high-speed cooling is achieved, and when narrow products are cooled, due to the fact that local heating is concentrated, the water flow circulation path can be shortened. Therefore, the long path can be adjusted for slow cooling, and then the device can achieve accurate cooling according to products with different printing breadths.

The present invention belongs to the technical field of solution detection, and discloses a solution detection sensor, which includes a housing layer and a valve body assembly. A detection cavity is formed inside the housing layer, and a detection element is arranged in the detection cavity. An external flow channel communicating with the detection cavity is arranged on the housing layer. The external flow channel includes an upper external flow port located at the top of the housing layer and a lower external flow port located below the upper external flow port; the valve body assembly includes a valve cover and a floating member. The valve cover is connected to the housing layer and is arranged on the outer periphery of the upper external flow port. An activity cavity communicating with the outside is arranged inside the valve cover, and the floating member is movably arranged in the activity cavity, and the floating member can open or block the upper external flow port. The solution detection sensor of the present invention blocks the upper external flow port through the floating member, reduces the impact force of the solution flowing in from the upper external flow port, blocks the bubbles from entering the detection cavity from the upper external flow port, and ensures the detection accuracy of the solution detection sensor.

The invention discloses a controllable mathematical instruction data synthesis method. A large language model for synthesizing mathematical instruction data performs multiple tasks at the same time. Comparing the answer of the answering process output by the large language model, the reference answer and the execution result of the program code; and if the three parameters are equal, carrying out numerical value replacement on the parameters in the output data of the seed mathematical instruction data by the large language model, and combining new numerical values of the parameters with the general mathematical problem template to form new mathematical instruction data. According to the method, starting from seed mathematical instruction data, a large language model is utilized to generate a problem solving process, a problem solving process answer, a reference answer, a parameter, a general mathematical problem template, a program code, variable assignment in the program code and an execution code. Generation of each part has clear rules and requirements, all links are matched with one another and progressive layer by layer in the generation process, and finally generated new mathematical instruction data are processed and checked for multiple rounds, so that accuracy and high quality are guaranteed.

The embodiment of the invention relates to the technical field of electrode manufacturing, and discloses a dipping lifting-space slope flow control method based on a bionic visual system, which comprises the following steps: generating a corresponding control instruction according to a slope flow initial angle and a current state of a mechanical arm so as to enable an electrode plate clamped by the mechanical arm to be in an initial slope flow state, the precursor solution is driven by gravity to flow on the electrode plate; acquiring slope flow image data of the electrode plate and the precursor solution on the surface of the electrode plate in real time through a camera, and analyzing the slope flow image data to determine motion characteristic parameters of the precursor solution; and according to the comparison result, an adjusting instruction of the mechanical arm is generated to dynamically adjust the angle of the electrode plate. According to the dipping lifting-space slope flow control method based on the bionic vision system, the precursor solution is driven by gravity to flow to all corners of the surface of the electrode plate by adjusting operation of the mechanical arm, the coating effect is optimized, and it is ensured that the solution evenly covers the electrode plate.

The utility model relates to the technical field of vegetable protein purification, in particular to a vegetable protein purification device which comprises supporting frames installed on the left side and the right side of the bottom of a purification tank, and the purification tank is internally provided with a purification device body used for rapidly purifying vegetable protein stock solution. And the cleaning device is used for scraping residual vegetable protein purified substances on the inner wall of the purification tank. According to the chemical mixing device, chemicals are injected into a stock solution through centrifugal force generated when the rotating shaft rotates, so that the chemicals are mixed and injected at the same time, the contact area of the chemicals and the stock solution is increased, the mixing reaction is more facilitated, and the centrifugal force generated when the stirring rod rotates drives the mounting block to pull the elastic rope to move outwards; the spoilers on the outer surface of the mounting block rotate and impact the stock solution, and one of the spoilers is longer than the other spoilers, so that the overall gravity center of the mounting block shifts, the spoilers rotate disorderly in the stock solution flow, the solution flow is further disturbed, and the mixing effect is improved.

The invention belongs to the technical field of floating and sinking, and discloses a floating and sinking multi-density-level heavy liquid density adjusting and preparing device which comprises a first liquid barrel. The first liquid barrel is used for preparing heavy liquid with target density; a first pipeline is connected to the outer side of the first liquid barrel, a liquid inlet and a liquid outlet of the first pipeline are communicated with the interior of the first liquid barrel, and a solution in the first liquid barrel enters the first pipeline from the liquid inlet; a first pump part and a density monitoring part are connected in series in the first pipeline; the first pump part is used for pumping the solution in the first pipeline to the liquid outlet and enabling the solution to flow back into the first liquid barrel; the density monitoring part is used for monitoring the density of the solution in the first pipeline; the first liquid barrel is connected with a first liquid conveying unit and a second liquid conveying unit; the density monitoring part continuously monitors the solution flowing in the circulation loop, online, real-time and global measurement of the heavy liquid in the first liquid barrel is achieved, the accuracy and reliability of density modulation or preparation are remarkably improved, and modulation or preparation of heavy liquid of various density levels can be achieved according to actual needs.

The utility model discloses an aqueous solution flow reduction alarm device, which comprises a flow monitoring structure, a collection box, an alarm structure and a control structure, the flow monitoring structure comprises a detection assembly and an overflow groove, a closed loop is formed between the overflow groove and the detection assembly by adding a solution column, and the overflow groove is provided with an opening and a through hole. An added solution enters the overflow groove from the opening, the through hole is formed in the bottom of the overflow groove, and the opening degree of the through hole is adjusted through an adjusting piece so as to adjust the thickness of the added solution column; the collection box is used for collecting the added solution passing through the through hole and the detection assembly; the alarm structure performs acousto-optic warning according to the connection condition between the overflow groove and the detection assembly; the control structure receives electric signals generated by the overflow groove and the detection assembly closed loop and transmits the electric signals to the alarm structure. Whether a liquid column between the detection assembly and the overflow groove is continuous or not is judged by monitoring on-off of a loop between the detection assembly and the overflow groove, and workers are reminded to go to deal with the problem of flow reduction.

The utility model belongs to the technical field of gas purification, and particularly discloses an absorption tower for treating metallurgical coal gas CO2, which comprises a cylinder body, an upper seal head arranged above the cylinder body, a purified gas outlet pipe communicated with the upper seal head, a pressure detection pressure taking hole arranged on the upper seal head, a wire mesh demister arranged in the cylinder body, a solution inlet pipe penetrating through the cylinder body, and a solution outlet pipe communicated with the solution inlet pipe. A solution flow control valve is arranged on the solution inlet pipe, a plurality of nozzles are arranged on the solution inlet pipe and located in the barrel, a plurality of flow dividing assemblies are arranged in the barrel, each flow dividing assembly is located below the solution inlet pipe, a plurality of filler assemblies are arranged in the barrel, and each filler assembly is located below the corresponding flow dividing assembly. A raw material gas inlet pipe is communicated with the barrel body, a lower sealing head is arranged below the cylinder, an annular base is connected below the cylinder, the lower sealing head is located in the annular base, a rich liquid outlet pipe is communicated with the lower sealing head, the other end of the rich liquid outlet pipe fixedly penetrates through the annular base, and a rich liquid flow control valve is arranged on the rich liquid outlet pipe.