72 results about "Micropore Filter" patented technology

Systems for sorting sperm include a housing and a microfluidic system supported by the housing. The systems also include two or more inlets providing access to the microfluidic system to deliver sperm or semen and fluid to the microfluidic system, as well as an outlet for harvesting sorted sperm. The systems include a flow channel that provides a flow path for sperm from an inlet to an outlet while sperm travels against a fluid flow towards an outlet for harvesting. In the systems, fluid delivered to the microfluidic system via an inlet flows from the inlet towards one or more outlets, and the flow channel extending along the length of the microfluidic system provides a flow path for motile sperm to travel against the fluid flow towards a collection outlet for harvesting. In some embodiments of a system, the microfluidic system also includes a microporous filter arranged in the flow path between the inlet and the collection outlet to cause motile sperm traveling against the fluid flow to pass through the filter to reach the collection outlet for harvesting.

The utility model discloses a microporous filter for veterinary drug solution production, which comprises a connecting cover, the inner surface of the connecting cover is fixedly connected with a first limit block, the lower surface of the first limit block abuts against a limit plate, five sleeves are sleeved in the limit plate, the outer surfaces of the five sleeves are fixedly connected with second limit blocks, and the second limit blocks are fixedly connected with the inner surface of the connecting cover. And the second limiting block makes contact with the lower surface of the limiting plate, the outer surface of the connecting cover is fixedly connected with a liquid inlet pipe, and the interior of the liquid inlet pipe is fixedly connected with a liquid inlet pressure gauge. Through the structural relation that the sleeves in the limiting plate and the second limiting blocks are nested layer by layer, displacement and looseness of key assemblies are effectively avoided, the equipment maintenance frequency is reduced, the continuity of veterinary drug production is guaranteed, the sleeves are arranged in the limiting plate in order, a standardized positioning frame is provided for follow-up installation of a filter cartridge, and the production efficiency is improved. The solution is uniformly distributed when flowing through each filter cartridge, so that the condition that the local flow velocity is too high or too low is avoided, and the yield of unqualified products is reduced.

The utility model discloses a ceramic filter membrane processing milk processing device, which comprises a ceramic membrane microporous filter main body, a feed pipe and a discharge pipe, the outer end of the feed pipe is communicated with a delivery pipe through a connecting flange, a heating mechanism is arranged in the delivery pipe, the surface of the delivery pipe is covered with a heat preservation mechanism, and the discharge pipe is connected with the heat preservation mechanism. The two ends of the heat preservation mechanism are connected with mounting mechanisms. The conveying pipe and the feeding pipe can be conveniently connected through the connecting flange, milk can be conveyed into the ceramic membrane microporous filter main body through the conveying pipe to be filtered, and meanwhile, when the milk is conveyed through the conveying pipe, the milk circulating in the conveying pipe can be conveniently heated through the heating pipe, so that the milk conveying efficiency is improved. And the situation that the milk is coagulated due to temperature reduction and flocculates are easily generated, so that when the milk enters the ceramic membrane microporous filter main body, the interior of the ceramic membrane microporous filter main body is blocked, and the filtering efficiency of the ceramic membrane microporous filter main body is reduced is prevented.

The utility model relates to the technical field of medicine filling devices, in particular to a medicine filling device with a sterile filtering structure, which comprises a storage tank, the liquid inlet end of the storage tank is connected with a first filter membrane filter through a conveying pipe, the liquid inlet end of the first filter membrane filter is fixedly provided with a liquid inlet pipe, and the liquid outlet end of the storage tank is connected with a conveying pump through a suction pipe. The liquid outlet end of the conveying pump is connected with a second filter membrane filter through an output pipe, an infusion pipe is fixedly installed at the liquid outlet end of the second filter membrane filter, a valve is fixedly installed on an end pipe body of the infusion pipe, a filling head is fixedly installed at the tail end of the infusion pipe, a threaded pipe is fixedly installed at the tail end of the filling head, and a microporous filter is arranged on the threaded pipe. A filter membrane is fixedly mounted on the inner wall of the microporous filter, a liquid outlet pipe is fixedly mounted at the liquid outlet end of the microporous filter, a stirring motor is fixedly mounted in the center of the top cover, and stirring blades are fixedly mounted on a stirring shaft. The sterile infusion device facilitates sterile infusion operation and is convenient to use.

The invention discloses drilling mud filtering equipment which comprises a rotational flow pretreatment assembly used for achieving primary solid-liquid separation of mud through centrifugal force; and the filter pressing assembly comprises a hydraulically-driven upper pressing plate, a hydraulically-driven lower pressing plate, a micropore filter element which is arranged between the upper pressing plate and the lower pressing plate and has a dynamically-adjustable pore diameter, and a pressure feedback system. The device is compact in structure, high in automation degree and suitable for high-strength drilling operation, and the problems that traditional equipment is long in filtering period, prone to blockage and the like are solved.

The utility model relates to the field of waste acid recovery, in particular to an acid mud filtering device. Comprising a supporting table, a cyclone filter, a basket filter and a microporous filter are sequentially connected to the supporting table in series from left to right through a pipeline, a supporting frame is welded to the portion, located below the basket filter, of the supporting table, the basket filter is placed on the supporting frame, supports are welded to the side walls of the cyclone filter and the microporous filter, and the supports are welded to the side walls of the cyclone filter and the microporous filter. The bottom of the support is connected with the supporting table through bolts. According to the utility model, the treatment difficulty of waste acid generated after explosive and powder production is reduced, and meanwhile, the recycling of a large amount of waste acid is realized. The device disclosed by the utility model is suitable for filtering and recycling acid mud generated in explosive product production and other industrial production.

The application discloses a kind of copper sulfate electroplating solution preparation device and method for chip packaging, it is related to chip packaging technical field, and its technical solution points are as follows: including copper sulfate pentahydrate storage tank, negative pressure feeder, feed volume bin, electronic scale, copper sulfate solution preparation tank, preparation pump one, micropore filter one, resin barrel, electroplating solution preparation tank, spiral spray head, preparation pump two, heat exchanger, micropore filter two;Copper sulfate pentahydrate storage tank is connected by negative pressure feeder, feed volume bin, electronic scale and copper sulfate solution preparation tank;Copper sulfate solution preparation tank is communicated with electroplating solution preparation tank by micropore filter one and resin barrel, and copper sulfate solution is added into electroplating solution preparation tank by preparation pump one after preparation in copper sulfate solution preparation tank;Electroplating solution preparation tank and preparation pump two, heat exchanger form circulating system, and micropore filter two is used to fill electroplating solution.The whole preparation device of the application adopts automatic instrument and logic control, and full-process can realize automatic and intelligent operation.

The utility model discloses a pressurizing and film-passing device for selenium form extractant of selenium-rich edible fungi, which comprises a rack and a pressing mechanism arranged at the top of the rack, the pressing mechanism comprises an electric push rod connected with the rack, and a telescopic rod of the electric push rod is connected with a pressing plate. A centrifuge tube support for placing a plurality of centrifuge tubes is arranged at the bottom of the rack, an injector support for placing a plurality of injectors is arranged in the middle of the rack, the lower ends of the injectors are connected with microporous filters vertically corresponding to the centrifuge tubes, and piston rods at the upper ends of the injectors vertically correspond to the pressing plates. According to the technical scheme, a plurality of centrifugal tubes can be placed on the centrifugal tube support at the same time, a plurality of injectors vertically opposite to the centrifugal tubes can be placed on the injector support at the same time, the pressing mechanism can press the injectors downwards at the same time, the filter pressing efficiency is improved by times, and the filter pressing efficiency is improved by times. And manual pushing is not needed in the filter pressing process, so that labor-saving operation is realized.

The microporous filter with the self-cleaning function comprises a tank, the tank is formed by splicing an upper shell and a lower shell, a sealing plate is hinged to an opening in the top of the upper shell, a cleaning motor is installed in the center of the upper shell, a filter element main body is installed at the top of the lower shell, and the filter element main body is connected with the sealing plate. The filter element body penetrates through an annular plate fixed to the inner wall of the upper shell, a cleaning mechanism can be installed at the top of the filter element body, a drain pipe at the bottom of the filter element body penetrates through the lower shell, the cleaning mechanism comprises a rotating cylinder rotationally connected to the top of the filter element body, the rotating cylinder is in butt joint with a cleaning motor, and rotating plates are fixed to the two sides of the rotating cylinder; a sliding block is fixed to one side of the rotating plate, the sliding block is inserted from the bottom of a sliding way on one side of the banister brush strip, the sliding block and the banister brush strip are fixedly connected in the mode that a manual bolt is inserted into the top in a penetrating mode, and the banister brush strip penetrates through an opening of the annular plate.

The utility model discloses a solid-liquid separation device in wet magnesium desulfurization, and relates to the technical field of solid-liquid separation devices. The solid-liquid separation device in wet magnesium desulfurization comprises a separation tank, a filter element, a sewage discharge unit and a stirring element. The solid-liquid separation device in wet magnesium desulfurization is provided with the separation tank, the separation tank is made of corrosion-resistant stainless steel, the separation plates are arranged in the tank body, a plurality of mutually communicated cavities are formed, a roundabout flow channel is formed, the retention time of slurry in the tank body is prolonged, and the separation path of the slurry in the tank body is increased; the settling area is arranged in the tank body, and the flow velocity of slurry entering the settling area is obviously reduced through a speed reducer and a special flow channel design, so that favorable conditions are provided for settling of solid particles; metal filter screens and microporous filter membranes with different pore diameters are respectively mounted in different chambers, and the filter pore diameters of the filter elements are sequentially reduced from a feed port to a clear liquid outlet, so that the subsequent microporous filter membranes and runners are prevented from being blocked.

The utility model relates to the technical field of numerical control lathes, and discloses a cutting fluid spraying structure for a numerical control lathe, which comprises a numerical control lathe main body, a micropore filter screen is clamped in the middle of the top surface of the numerical control lathe main body, and a cutting fluid tank is fixedly arranged on the bottom surface of the numerical control lathe main body. Cooling fans are fixedly arranged on the periphery of the surface of the cutting fluid box. A conveying mechanism is fixedly arranged on one side of the outer surface of the cutting fluid box, a tool rest is arranged on one side of the top face of the numerical control lathe body, and an adjusting mechanism is fixedly installed on the outer surface of the tool rest. According to the cutting fluid spraying structure for the numerical control lathe, through the arrangement of the microporous filter screen and the cooling fan, after being used, cutting fluid falls into the cutting fluid box from the microporous filter screen, impurities in the cutting fluid are filtered through the microporous filter screen, the cooling fan is turned on, the used high-temperature cutting fluid is cooled, the cutting fluid is conveyed in a circulating mode through the conveying mechanism, and the cutting fluid is sprayed to the cutting fluid box. The cutting fluid can be reused, and the machining cost is saved.

The embodiment of the utility model provides an integrated seawater seaweed filtering and collecting device, and relates to the technical field of seaweed filtering and collecting. The integrated seawater seaweed filtering and collecting device comprises a sleeve, a positioning rod is movably arranged in the sleeve, a coarse filtering piece, a seaweed removing piece and a micropore filtering piece are installed on the positioning rod from top to bottom, a water inlet pipe is connected to the upper end of the sleeve, and a vacuum pump is connected to an air outlet pipe arranged at the lower end of the sleeve. A beaker is arranged at the lower end of the water outlet in the bottom of the sleeve. According to the utility model, the rough filtration part, the algae removal part and the microporous filtration part are sequentially mounted on the positioning rod, so that seawater and algae are integrally filtered, the functions of seawater filtration and algae collection are integrated, the occupied space of equipment is reduced, seawater filtration and algae collection can be realized through simple operation, the working efficiency is improved, and the cost is reduced. Meanwhile, a multi-stage filtering and algae removing module is adopted, so that the cleanliness of the filtered seawater and the purity of collected algae are ensured.

The utility model relates to the technical field of industrial product design, in particular to a model industrial product polishing device for industrial product design. The device comprises a grinding table, a penetrating groove is formed in the middle of the top surface of the grinding table, a microporous filter screen is clamped in the penetrating groove, a water tank is fixedly mounted on the bottom surface of the grinding table, and a cooling and scrap removing mechanism is fixedly mounted on one side of the outer surface of the water tank; fixing frames are fixedly arranged on the two sides of the top face of the grinding table. According to the model industrial product grinding device for industrial product design, through the arrangement of the cooling and scrap removing mechanism, a water source is injected into a water tank, when an industrial product is ground, a circulating water pump is started, the water source in the water tank is pumped out and conveyed into a water spraying pipe through a conveying pipe, and then the water is sprayed to the industrial product; chippings generated by industrial product polishing are adsorbed and cooled, a used water source flows back into the water tank after being filtered by the microporous filter screen, the water source can be repeatedly used, and the cost is saved.

The application relates to the medical technology field and discloses an oral liquid capable of easily expelling stones and clearing toxins and a preparation process thereof. The raw materials of the oral liquid include chicken gizzard suet, dandelion, houttuynia cordata, sea golden sand, plantain, corn silk, money grass, corydalis, licorice and oligofructose with a specific polymerization degree. The preparation process comprises grouping extraction of the raw materials, purification of the chicken gizzard suet by using concentration with forced circulation and bottom feeding type jet flow, pressure filtration of the sea golden sand by using the endogenous fiber of the houttuynia cordata to construct a filter aid skeleton, and finally constant-temperature liquid preparation and sterilization by using a micropore filter membrane to obtain the finished product. Oligofructose is introduced into traditional Chinese medicine to promote proliferation of intestinal oxalic acid degrading bacteria, and plant components are used to block stone generation from a metabolic source; specific fluid mechanics separation and non-thermal sterilization processes solve the problems of protein aggregation and micropore blockage of microspores, and the configuration stability of heat-sensitive medicinal components and prebiotic molecules is maintained.

The application relates to the technical field of filtering equipment, and discloses a high-flux anti-pollution micropore filtering device for processing water, which comprises a preliminary filtering assembly, the top of the preliminary filtering assembly is fixedly provided with a connecting assembly, the top of the connecting assembly is fixedly provided with an upper conical guide pipe one, and the top of the upper conical guide pipe one is fixedly provided with a fixing seat. The setting of the lifting device and the sealing arc plate enables the square groove between the cavity and the storage bin to be sealed, the setting of the arc-shaped clamping plate enables the sealing arc plate to be fixed and sealed, the setting of the lifting gripper enables the filter core in the inner cavity of the cavity to be separated from the filter core at the top through the lifting gripper when the filter core needs to be replaced, the impact force of liquid flow is utilized to make the bottom of the cavity be suspended, the lifting gripper can push the filter core in the inner cavity of the storage groove to the inner cavity of the bottom of the cavity, and the automatic replacement of the filter core is realized.

The utility model discloses viscose fibre acid bath micropore filter backwash system relates to viscose fibre production technical field, including micropore filter, controller, the top export of micropore filter is connected with acid outlet pipeline, water inlet pipeline, air inlet pipeline and alkali discharge pipeline respectively, and the bottom export is connected with acid inlet pipeline, alkali inlet pipeline, acid drainage pipeline and blow-off pipeline respectively, acid outlet pipeline, water inlet pipeline, air inlet pipeline, alkali discharge pipeline, acid inlet pipeline, alkali inlet pipeline, acid drainage pipeline and blow-off pipeline are provided with electric valve respectively, and acid outlet pipeline and blow-off pipeline are provided with turbidimeter respectively, and acid drainage pipeline and alkali inlet pipeline are provided with flowmeter respectively, electric valve, turbidimeter and flowmeter are connected with controller signal respectively. Through setting PLC controller and sensor, change micropore filter cleaning process to automatic control, set safety interlock, optimize and upgrade micropore cleaning process, reduce personnel safety risk, improve micropore cleaning efficiency.

The utility model discloses a microporous filter for producing and processing isoxaflutole, which comprises a shell, the upper end and the lower end of the shell are both screwed with fixed discs, and the outer side of the shell is fixedly connected with an input pipe; the filtering assembly is arranged in the shell, an outer filtering cylinder, an inner filtering cylinder and a micropore filtering element are arranged in the filtering assembly, and filtering can be conducted; the filtering assembly comprises a motor, the motor is fixedly connected in the shell, and the driving end of the motor is fixedly connected with a driving wheel; and the outer gear rotates in the shell in a limited mode, the driving wheel is meshed with the outer gear, and gear blocks are fixedly connected to the outer side and the inner side of the outer gear. According to the utility model, through the arrangement of the filtering assembly, the aperture of a filtering hole for preliminary filtering can be adjusted, blocked residues are thrown out through rotation, blockage is avoided, and in addition, blockage caused by slow deposition of materials can be avoided through accelerated circulation.

The utility model discloses a pressure tapping device for a hearth of a gas heat treatment furnace, which belongs to the field of hearth pressure tapping and comprises a pressure tapping pipe, a filter component arranged at the top end of the pressure tapping pipe, a measuring component arranged at the top end of the filter component, and an adjusting component arranged at the top end of the measuring component. The key point of the technical scheme is that the handle rotates to drive the threaded sleeve to be in threaded fit with the lead screw, the position of the measuring assembly is flexibly adjusted, diversified requirements of different hearth structures and measuring scenes for measuring point positions can be met, meanwhile, a buffer structure composed of a buffer spring and a buffer net effectively deals with pressure fluctuation or impact, and the measuring accuracy is improved. The filtering assembly is internally provided with a multi-layer filtering system composed of a large-hole filtering net, a middle-hole filtering net and a micro-hole filtering net, gas impurities can be comprehensively filtered, the phenomenon that the impurities interfere with pressure measurement is avoided, the pressure taking pipe and the filtering assembly are in threaded connection, and the filtering assembly and the measuring assembly are in threaded connection, so that the device is convenient to maintain, overhaul or replace, disassemble and store.

The invention relates to a method for increasing the content of dencichine in panax notoginseng cells by controlling the temperature, and belongs to the field of panax notoginseng cell culture.The method comprises the following steps that 1, panax notoginseng diploid cells with the good growth condition serve as materials and are inoculated into a WPM culture medium, and the WPM culture medium is placed at the low temperature of 4 DEG C and the high temperature of 30 DEG C to be subjected to dark culture for 5-15 d; (2) putting the material cultured in the step (1) into a mortar, adding liquid nitrogen, and grinding into powder; (3) putting the powder obtained in the step (2) into a centrifugal tube, and filtering supernate through a microfiltration membrane to obtain a dencichine sample extracting solution; (4) determining the dencichine content of the dencichine sample through liquid chromatography; and (5) weighing dencichine standard substance powder, determining the peak area of the dencichine standard substance according to the chromatographic conditions of the dencichine sample, and drawing a standard curve. According to the present invention, the panax notoginseng diploid cells are adopted as the material, such that the dencichine content in the panax notoginseng cells can be increased at the specific culture temperature, and the extraction and determination method of the dencichine is established;

A gas-liquid separation device for producing hydrogen by electrolysis of water, relates to the field of gas-liquid separation technology, comprises a separator housing, the separator housing is a square shell with upper and lower openings, the upper end of the separator housing is fixedly connected with an arc-shaped upper end cover, the lower end of the separator is fixedly connected with an arc-shaped lower end cover, and the separator housing is provided with a gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component from bottom to top. The present invention solves the problems that the gas-liquid separator in the traditional technology is limited in function when used for producing hydrogen by electrolysis of water, cannot achieve diversified separation effects, and the separated droplets are not transferred in time and return to the gas phase, resulting in a reduced gas-liquid separation rate.

The utility model belongs to the technical field of filtering devices, and particularly relates to a frying oil filtering type oil purifying pot which comprises a pot body and a filtering assembly arranged in the pot body, the filtering assembly comprises a cylinder, the bottom end of the cylinder is an open end, and the top end of the cylinder is a closed end; a plurality of mounting holes which are distributed at equal intervals in the circumferential direction are formed in the cylinder; a microporous filter screen; the rotating rod is rotationally mounted in the cylinder through a mounting piece; an impeller; the plurality of poke rods are uniformly fixed at the position, close to the microporous filter screen, of the outer wall of the rotating rod; according to the edible oil filtering device, through the arrangement of the rotating rod, the mounting piece, the impeller and the poke rod, when edible oil crosses over the impeller, the impeller can rotate under the downward pressure of the edible oil, the impeller drives the poke rod to rotate through the rotating rod, the edible oil is stirred, gas exhaust can be promoted, a certain pressure relief effect is achieved, and it is ensured that the edible oil reliably penetrates through the microporous filter screen; and the problem of blockage is avoided.

The utility model relates to filter machine technical field, and disclose a kind of doublet micropore filter, including two filter drums, still including cover, slag scraping structure and surround cylinder, the cover is detachably arranged at the top end of filter drum, and retractable structure is equipped between the cover and filter drum, the slag scraping structure includes rotating part and slag scraping piece, the rotating part is used to drive slag scraping piece rotation, to scrape the inner wall of filter core in filter drum, the surround cylinder is arranged in filter drum, and the outer circumference and bottom end of surround cylinder are equipped with leakage hole;The utility model can drive connecting shaft rotation using motor when filtering, in other words, can drive arc-shaped scraper to scrape the impurities attached to filter core inner wall, through this timely and automatic scraping cleaning action, filter core can keep relatively clean state at any time, greatly improve the filter effect of filter core continuity, ensure that the precision and flux of filtration work are not affected by the negative influence of impurity accumulation.

The utility model discloses an electric control coffee brewing and filtering device which comprises a filter cup with a soaking cavity and a micropore filter screen arranged at the bottom of the soaking cavity, a water outlet hole penetrating through an inner cavity of the filter cup is formed in the lower end of the filter cup, the micropore filter screen is arranged above the water outlet hole, and an installation cavity is formed in the lower portion of the filter cup. An air pump, a PCB (Printed Circuit Board) control panel for controlling the air pump to work and a battery are arranged in the mounting cavity, an air inlet hole is formed in the bottom surface of the filter cup, the filter cup is also provided with an air outlet hole communicated with the outside, and an air inlet and an air outlet of the air pump are respectively communicated with the air inlet hole and the air outlet hole to form an independent exhaust passage capable of being opened and closed by electric control. According to the utility model, the air pump is adopted to control the opening and closing of the exhaust passage, the filtering of coffee particle soaking liquid is accelerated by utilizing the atmospheric pressure principle, the electrified or automatic control is realized, the manual operation steps can be reduced, the operation is simpler and more labor-saving, the use is safe and reliable, the filtering efficiency is accelerated, and coffee drinks with better quality can be obtained.

The invention relates to a lake water body heavy metal pollution risk assessment method based on a multi-source analytical model, and the method comprises the following steps: S1, sample collection: collecting lake water body samples by using a water collector in a dry season and a wet season respectively, carrying out membrane treatment on the samples through a microporous filter membrane, and removing suspended matters in the samples to obtain a water sample to be detected; s2, sample detection: pretreating a water sample to be detected, determining the concentrations of Pb, Cu, Zn, Co, As, Cd, Cr, Mn and Ni in the water sample by using ICP-MS (Inductively Coupled Plasma Mass Spectrometry), and determining the concentration of Hg in the sample by using atomic fluorescence spectrometry; and S3, heavy metal spatial distribution characteristics: analyzing the heavy metal spatial distribution characteristics based on inverse distance weighted interpolation in Arc-Gis. According to the method, the double-stage sampling design of the dry season and the wet season is combined, the spatial and temporal distribution characteristics of the heavy metals under different hydrological conditions can be comprehensively reflected, the limitation of a single-index evaluation method is made up, and the method is high in adaptability and suitable for preliminary diagnosis of heavy metal risks of various water bodies.

The utility model provides a 12-row reagent card used for being matched with a 96-pore plate solid-phase extraction device. The 12-row reagent card comprises a reagent card body, a microporous filtering membrane, a sealing cover, a supporting seat and a base, the microporous filtering membrane is arranged at the bottom of the reagent card body, an opening of the reagent card body is sealed by a sealing cover, and the reagent card body is mounted on the base through a supporting seat. Liquid-liquid extraction, the 96-pore plate and solid-phase extraction are effectively combined, the flux is high, liquid in 96 sample pores can be simultaneously filtered at one time, the problems of low filtering efficiency and high cost in the prior art are fundamentally solved, the operations of repeated suction, centrifugation, pipetting and the like in the traditional method are avoided, and the experimental steps are further simplified.

The utility model relates to the technical field of microporous filters, and discloses a backflow microporous filter convenient for impurity removal, which comprises a bearing frame, a filtering mechanism is arranged on the inner side of the bearing frame, a backflow mechanism is arranged on the left side of the filtering mechanism, the filtering mechanism comprises a filtering box, the filtering box is fixedly connected to the inner side of the bearing frame, and the backflow mechanism is arranged on the left side of the filtering mechanism. The bottom of the filter box is fixedly connected with a drainage pipe, the periphery of the drainage pipe is fixedly connected with a valve, the inner bottom of the filter box is fixedly connected with a base, and the rear side of the filter box is fixedly connected with a mounting frame. The connecting shaft is fixed through the nut, the filter element can be installed, the filter element and the sealing cover are in a stable state, the servo motor drives the threaded rod to rotate, and when the sealing cover moves downwards, the filter element can be driven to be connected to the periphery of the fixing column in a sliding mode.

The utility model discloses a cell strain concentration device, which belongs to the field of solution processing equipment and is characterized in that a hollow tubular membrane component is in threaded connection in a storage tank along the vertical direction, the storage tank is divided into an inner strain tank and an outer clean water tank, and an online conductivity meter monitors the salinity concentration of a strain solution in the strain tank in real time; the addition amount of clear water is adjusted, and the motor drives the stirring device to stir a strain stock solution in the strain pool, so that the clear water in the strain stock solution penetrates through the pore diameter of the microporous filter membrane layer of the hollow tube type membrane assembly and flows into the clear water pool through the opening formed in the outer wall of the shell, and strains are difficult to penetrate through the microporous filter membrane layer and are retained in the strain pool; therefore, the concentration of the strain stock solution is realized.

A cell co-culture system simulating hepatic sinusoids includes a multi-layer cell culture box, a microporous filter, a circulating peristaltic pump, a venous blood simulation box and an arterial blood simulation box. A culture fluid injection port is provided on the top of the culture box, an arterial blood interface and a venous blood interface are provided on the upper side wall of the culture box, and a liquid outlet is provided on the lower side wall of the culture box. The liquid outlet is connected to the venous blood simulation box and the arterial blood simulation box respectively through a circulation tube. The new culture system can realize the co-culture of multiple cells, simulate the real mechanical / chemical / biological microenvironment of cell growth by controlling the nutrient composition, flow rate, oxygen saturation and pH value of arteries and veins, and can perform drug screening experiments, study the interaction between different cells, analyze the conditions for tumor cell growth and the resulting environmental changes, and provide clues and basis for the prevention and treatment of liver diseases.

The utility model discloses a microporous filter convenient to maintain, which relates to the technical field of microporous filters, and comprises a filter body, a top cover is mounted at the top of the filter body, three filter elements are arranged in the filter body, the bottoms of the three filter elements are connected to a water outlet hopper, a mounting head is arranged at the top of the water outlet hopper, and the mounting head is connected with the top of the filter body. An annular groove is formed in the mounting head, a clamping plate is placed on an annular plate in the filter body, after all parts are placed well, a threaded pipe is rotated to drive a driving disc to rotate, and an inner extrusion block and an outer extrusion block on the driving disc extrude clamping blocks on the two sides of three filter elements correspondingly; the clamping block is extruded in a slide way at the top of the clamping plate to slide until the head of the clamping block clamps an annular groove of the mounting head, then fixation is completed, when dismantling and maintenance are needed, the top cover can be taken down to maintain the interior after the clamping block leaves through reverse rotation, and the device is easy and efficient to operate, high in linkage and good in fixing effect.

The utility model discloses an integrated intelligent water supply module of a medical central centralized water supply system, and relates to the technical field of water treatment systems. The pure water tank, the sterilizer, the water supply pump A and the water supply pump B are arranged in the machine room, the water supply pump A and the water supply pump B are connected in parallel, and a three-way valve is arranged on a main pipeline extending to a plurality of water using points outside the machine room and returning to the machine room. The sterilizer, the water supply pump A and the water supply pump B which are connected in parallel, and the microporous filter are jointly mounted in an integrated mounting piece to form an integrated module. The water supply module adopts an integrated design, the water pump, the sterilizer and related pipe valves are integrated in one module, the installation is simple, water supplement can be realized by directly increasing the number of the modules, the expansion is convenient and fast, dynamic balance between water supply and water use is realized through constant pressure, and the service life of the water supply module is prolonged. And the problem of insufficient water supply or excessive water supply caused by dynamic change of terminal water consumption is solved.