64results about How to "Drinking water safety" patented technology

The invention discloses a pneumatic connection device for beverage bottles, which comprises an air bag, an air bag high-pressure gas source mechanism, a switch valve and a beverage bottle sealing gland; when the switch valve is at a first position, an air duct of the air bag is connected, the air bag high-pressure gas source mechanism supplies air for the air bag, and the air bag jacks up a beverage bottle until the beverage bottle is in close fit with the beverage bottle sealing gland; and when the switch valve is at a second position, the air duct of the air bag is disconnected, the air bag exhausts and lowers the beverage bottle, and then the beverage bottle is separated from the beverage bottle sealing gland. The connection device for the beverage bottle and a beverage dispenser, which are provided by the invention, are simple in structure and low in cost; and beverage bottles are replaced more conveniently and more healthily, and water drinking is safer.

The invention relates to a method of surface modification for environmentally-friendly carbon fibers. The method comprises sequentially immersing carbon fiber protofilament with acetone and nitric acid, and activating in an atmosphere of active gas. The modified carbon fiber obtained by the method is increased in surface oxygen-containing functional groups, improved in biocompatibility, greatly improved in biofilm formation amount and biofilm formation rate, and thus is an excellent biological carrier, and can not only directly purify water quality of rivers and lakes, but also be applied in industrial wastewater treatment and purification of raw water. The modification method of the carbon fiber is simple, environmentally friendly and wide in application prospects, can be used for directly purifying the water quality of the rivers and the lakes, and has important significance for lake eutrophication control, waste water purification, drinking-water safety, cultivation of algae as raw materials of bioenergy, and self restoration of water ecosystem.

The invention discloses an instant boiled water dispenser, which comprises a raw water tank, a bucket and a smart seat mandrel, wherein the bottom of the raw water tank is connected with a connecting tube and a warm boiled water / raw water outlet tube respectively; the connecting tube is connected with a quartz electrothermal film heating tube; the quartz electrothermal film heating tube is connected with a boiled water outlet tube; the warm boiled water / raw water outlet tube is provided with a first electromagnetic valve; the boiled water outlet tube is provided with a second electromagnetic valve; the boiled water outlet tube is connected with a collecting tube; the collecting tube is provided with a third electromagnetic valve; the collecting tube passes through the raw water tank to be connected with a warm boiled water tank; the inside of the warm boiled water tank is provided with a liquid level switch; the warm boiled water tank is provided with an overflow tube and a warm boiled water tube respectively; the warm boiled water tube is connected with the warm boiled water / raw water outlet tube; and the warm boiled water tube is provided with a fourth electromagnetic valve. The instant boiled water dispenser overcomes the defect that the conventional water dispenser cannot provide warm boiled water, realizes tail water recovery, guarantees drinking water safety, has convenient use and optimum effect, and realizes maximum energy conservation.

The invention relates to a service life detection apparatus of a UV lamp and a detection method thereof. The apparatus comprises a UV lamp, a UV lamp operating current detection module, a control circuit and a replacement warning module; and the UV lamp, the UV lamp operating current detection module, and the replacement warning module are connected with the control circuit electrically. Because the operating current of the UV lamp can reflect whether the UV lamp is in a normal state, the UV lamp operating current detection module obtains the operating current information and compares the information with a set parameter in the control circuit to analyze whether the service life of the UV lamp is reached; if the service life is reached, the control circuit sends an instruction to the replacement warning module and the replacement warning module carries out warning to warn the user to replace the UV lamp, so that functions of the UV lamp can be realized. According to the UV lamp service life detection scheme, whether the service life of the UV lamp is reached can be reflected accurately. When the apparatus is applied to a water purifier, drinking water security for the user can be guaranteed and an effect of maximum utilization can be realized.

The invention provides a tea bar machine hydrogen dissolving machine core which comprises a hydrogen making unit, a hydrogen dissolving unit and a control unit. A hydrogen output pipeline of a hydrogen electrolysis cell is connected with a hydrogen purification unit, the hydrogen purification unit is connected with a first tee valve, the other pipeline of the first tee valve is connected with a water source, the hydrogen dissolving unit comprises a diaphragm self-priming pump and an ion permeable membrane filter element or hollow fiber filter element, the last pipeline of the first tee valve is connected with the diaphragm self-priming pump, the diaphragm self-priming pump is connected to the ion permeable membrane filter element or hollow fiber filter element, a check valve is arranged ona water outlet pipeline of the hydrogen dissolving unit, the water outlet pipeline is connected with a pressure barrel through a second tee valve, a normally open solenoid valve is arranged between the check valve and the pressure barrel, the other pipeline of the second tee valve is connected with a bottom water feeding kettle, and a normally closed solenoid valve is arranged between the pressure barrel and the bottom water feeding kettle. The invention further provides a working method and an application of the tea bar machine hydrogen dissolving machine core. The hydrogen dissolving machine core has the advantages that hydrogen is physically dissolved, and the machine core is safe and secure and convenient in heating.

The invention relates to a service life monitoring device for a filter element of a water purifier. The device comprises a first filter element, a water inlet electromagnetic valve, a flowmeter, a second filter element, a third filter element and a gooseneck faucet successively connected through a pipeline; a mechanical switch and a three-in-one integrated module are mounted between the purified water outlet of the third filter element and the gooseneck faucet; the three-in-one integrated module is composed of a control panel, and a flow monitoring device and a display screen separately connected to the control panel; the mechanical switch and the water inlet electromagnetic valve are separately connected to the control panel; and the flowmeter is connected to the flow monitoring device. According to the device, a client can master the service life conditions of the filter elements immediately, so that the filter elements are replaced immediately and conveniently, and the drinking water safety is ensured.

The invention discloses a hidden layer permanent drainage ditch for farm flourishing, comprising an isolation layer, a first filter layer, a second filter layer and a third filter layer which are orderly arranged from top to bottom, wherein the isolation layer is made of straw or stalk; the first filter layer is made of small stones; the second filter layer is made of small stones or medium stones; the third filter layer is made of large stones; a soil cultivation layer is covered on the isolation layer; a bracket is arranged between the third filter layer and the bottom of the ditch; a gutterway through which the water can flow is formed between the bracket and the bottom of the ditch; a plurality of water gaps or holes, which are transparent up and down are distributed in the bracket. The hidden layer permanent drainage ditch has the advantages of being lasting in drainability, smooth in water, convenient to build, and firm and durable; overground and underground water levels are effectively reduced; time and labor are saved.

The invention provides a heat storage and insulation water cup. The heat storage and insulation water cup comprises a cup body and a cup cover, wherein the cup cover is screwed and covered on the cup body; the cup body comprises an inner wall and an outer wall, and an interlayer space is formed between the inner wall and the outer wall; the inner wall is made of a stainless steel material, and the outer wall is made of organic glass with heat conduction coefficient less than 0.2W / (m.k); a phase-change heat storage material is arranged in the interlayer space. The heat storage and insulation water cup has the advantages that the structure is simple, and the convenience in use is realized; by adopting a jacket layer structure of stainless steel and organic glass, the phase-change heat storage material is arranged in the interlayer space, water in the water cup can be constant in temperature by adjusting, the heat insulation time of the water in the water cup is greatly prolonged, the overhigh water temperature is avoided in a heating process, and the purpose of controlling and insulating heat for a long time is realized; people can drink warm water at any time.

The present invention relates to the producing and machining field of carbon filter element, which is a manufacturing method of carbon and fabric filter element synthesized by raw and supplementary materials of absorbent charcoal, compound cellosilk, sealing ring, shell cover, cementing compound, antiseep lining, net, outer layer of the net, thermal shrinkage film and so on.The method of producing and machining of carbon and fabric filter element is provided with reasonable design, simple operation, low processing cost, and obvious energy-saving effect. The present invention can resolve the problem of framework package without cloth for preventing charcoal powder leakage, big adsorption resistance force, slow water speed.The present invention is mainly used for water utilization of municipal drinking water, food industry, industrial plating solution and so on.

The invention relates to high florine water treatment equipment, and provides a defluorination magnetic attraction material and water treatment equipment comprising the same. The magnetic attraction material is prepared from ferric salt, nickel salt and manganese salt through a hydrothermal reaction under the alkaline condition, and is obtained through filtering, drying and high-temperature calcination. The fluorine removal agent is large in attraction capacity, and can effectively remove fluorions in water after being treated by the high florine water treatment equipment, can be repeatedly used after being regenerated, is good in regeneration performance and still has the good attraction effect after ternary cycle use.

The invention relates to the technical field of intelligent equipment, and discloses an intelligent cup capable of conducting water quality detection. The cup comprises a cup body, a cup lid and a first pull ring; the cup body comprises an outer surface layer and an inner container layer which is located in an inner cavity of the outer surface layer, a vacuum layer is arranged between the outer surface layer and the inner container layer, the cup lid covers the top of the cup body, the first pull ring is installed on the top of the left side face of the cup body, a storage battery is installedat the bottom of the inner wall of the outer surface layer, and a water quality sensor is installed at the bottom of the inner wall of the inner container layer. According to the intelligent cup capable of conducting water quality detection, by arranging a detection button, the water quality sensor and a data comparator, the detection button is started, and the water quality sensor detects waterin the cup body; by means of the data comparator, water quality data is compared, the water quality condition is obtained, the water quality detection effect is achieved, and then the drinking water safety of people is guaranteed, and use is more convenient.

The invention provides a filter element service life calculation method based on double engines, and belongs to the technical field of water purifiers. The method comprises the following steps of removing abnormal data; determining the initial life of the filter element; collecting two flow difference values, and calculating according to the initial service life of the filter element and the two flow difference values to obtain an engine result; calculating according to the initial life of the filter element to obtain a time engine result, and anchoring the time engine result; comparing the time engine result with the anchoring result, and injecting a time factor for feedback correction to obtain a modified time engine result; and taking the maximum value between the engine result and the modified time engine result to obtain the service life of the filter element. Flow factors and time factors are brought into a calculation result to evaluate the service life of the filter element, and mutual correction of the service life of the filter element is realized, so that inaccurate evaluation of the service life of the filter element is prevented, the situation that the filter element is overused is fundamentally avoided, the drinking water safety of customers is protected, and the expired filter element is replaced in time.

The invention discloses a primer pair and a standard substance for detecting mycobacteria and applications thereof. The primer pair is formed by DNA (Deoxyribose Nucleic Acid) respectively shown in a sequence 2 and a sequence 3. The standard substance is a double-stranded DNA molecule shown in the sequence 1 or a plasmid containing the double-stranded DNA molecule shown in the sequence 1 in a sequence table. The special primer pair having the good specificity for the mycobacteria and the standard substance having the generality for mycobacterial strains are provided, so that the special primer pair and the standard substance can be used for the auxiliary identification of the mycobacteria and the quantitative detection of the content of the mycobacteria in a liquid sample solution to be detected or a solid sample solution to be detected by means of fluorescence. The primer pair and the standard substance have the advantages of being high in sensitivity, good in specificity, rapid in detection and the like, and can detect bacteria which cannot be cultured, thereby obtaining a more accurate detection result. Therefore, the technical support is provided for the safety of drinking water and recycled water and the like.

The invention discloses a method for efficiently adsorbing arsenic in underground water by using nano iron oxide. The method comprises the following steps of preparation of a mesoporous structure, preparation of the nano iron oxide with a particle diameter of less than 10 nanometers, formation of a resin-based nano iron oxide composite material, precipitation treatment, shaking treatment, adsorption wall adsorption purification, mixed centrifugal treatment and cleaning of the resin-based nano iron oxide composite material. The method for efficiently adsorbing the arsenic in the underground water by using the nano iron oxide has the advantages that the mesoporous structure prepared by adopting a rapid freezing method and the nano iron oxide prepared from powdery ferric trichloride can ensure the effect that the particle diameter of the nano iron oxide is less than 10 nanometers, the resin-based nano iron oxide composite material with the nano iron oxide with small particle diameter hashigh adsorption capacity for arsenic, thereby being capable of improving the purification function for the arsenic in the underground water as an adsorption wall, so that while the drinking safety isensured, economic popularization can also be achieved, and the method is suitable for water improvement in areas with quality-induced water shortage in northwest China, and has the advantages of highefficiency and low cost.

The invention discloses an adsorption device of a water purifying system. The adsorption device comprises an adsorption chamber. An adsorption layer and a vertical water distribution pipe are arranged in the adsorption chamber. The two ends of the vertical water distribution pipe penetrate out of the adsorption layer respectively. The upper end of the vertical water distribution pipe is connected with a water distributor. The lower end of the vertical water distribution pipe extends out of the adsorption chamber. The adsorption chamber below the adsorption layers is connected with a water outlet pipe. The adsorption layer comprises a diatomite layer, a fluffy cotton layer, a silica layer and an activated carbon layer sequentially from bottom to top according to the thickness ratio of 3:2:1.5:1. The multi-layer adsorption layer is arranged in the adsorption chamber so that trace toxic and harmful matter left in water can be greatly reduced, water drinking safety is guaranteed, and a water source can be dispersed on the adsorption layers evenly through the disc type small hole water distributor. Besides, large water flow fluctuation can not be generated, the adsorption effect of the whole adsorption chamber is good, and service life is long.

The invention relates to a purified water kettle, belonging to the technical field of domestic drinking water quality advanced treatment. The purified water kettle comprises at least a pair of negative and positive electrodes, an electrolysis power source for supplying power to the negative and positive electrodes, and a water kettle, wherein a water-permeable diaphragm prepared from a non-conductive material is arranged between the negative electrode and positive electrode in pair; the water-permeable diaphragm is provided with water-permeable micropores with uniform pore size; the negative electrode and positive electrode are respectively a cage-shaped electrode which is fixed to the inner side surface of the water kettle lid, and the lower part of the cage-shaped electrode convexly extends into the kettle body; the negative electrode is provided with filter screen holes; the positive electrode is arranged in the negative electrode; and the water-permeable diaphragm is completely covered on the positive electrode. When in use, the negative electrode is immersed in the water stored in the kettle body, and the positive electrode contacts the kettle body through permeated water of the water-permeable diaphragm. The purified water kettle can generate fewer toxic byproducts while efficiently degrading organic matters in the home terminal drinking water in the water kettle, and the toxic byproducts can not enter the water in the water kettle.

The invention provides a drinking water device for animal husbandry and relates to the technical field of animal husbandry drinking water. The drinking water device for animal husbandry includes an L-shaped plate, the upper surface of the L-shaped plate is fixedly connected with a support rod, and the upper surface of the support rod is fixedly connected with a drinking trough, and the right side of the drinking trough is located at the lower end and is fixedly connected with a row. A water tank, and the outer surface of the support bar is sleeved with a movable plate. In the drinking water device for animal husbandry, when the larger animals drink water, the movable plate will move upwards, and then the control shaft can be rotated in the opposite direction, so that the valve can be closed, and then the water supply to the drinking tank can be stopped, and the sealing plate can be sealed at the same time. It can be reset under the action of the return spring, so that the water in the drinking trough can be drained, thereby preventing the growth of bacteria, and then it solves the problem that some larger livestock will remain in the drinking trough every time they drink water. water, which has long been a problem with high bacterial growth in drinking troughs.

The invention relates to a cup with the water drinking function. The cup comprises a cup body, a fixing base is fixedly connected with the open end of the upper side of the cup body, a micro electronic water pump is fixedly connected with the interior of the fixing base, the upper surface of the fixing base is provided with a faucet communicated with a water outlet of the micro electronic water pump, a groove is formed in the side wall of the cup body, and a water pipe corresponding to the micro electronic water pump is fixedly connected with the interior of the groove; the part, located on the outer surface of the water pipe, of the side wall of the cup body is fixedly connected with an electric heating piece used for heating the water pipe; a water outlet in the top end of the water pipe is communicated with a water inlet of the micro electronic water pump, and a function control plate is fixedly connected with the upper surface of the fixing base. The cup with the water drinking function is provided with an electric heating water outflow device and a water overflow warning device arranged in the cup, wherein the electric heating water outflow device is used for pumping out purified water in a purified water barrel and pouring the water into a cup main body in the cup, people can drink water on a sofa conveniently, and water pouring is safer.

The invention discloses a concentrated liquid adding control system of a water dispenser. The concentrated liquid adding control system comprises a water purification tank (1), a normal-temperature-water water outlet valve connected with a normal-temperature-water water outlet of the water purification tank (1), a heat tank (4) connected with a hot-water water outlet of the water purification tank (1), a hot-water water outlet valve connected with a water outlet of the heat tank (4), a stepping motor (8) which is connected with concentrated liquid water inlets of the hot-water water outlet valve and the normal-temperature-water water outlet valve and a concentrated liquid bottle (6) connected with a water inlet of the stepping motor (8), wherein the water purification tank (1) is provided with a control board provided with a water level detection switch (2); the water level detection switch (2) is provided with a plurality of water purification detection points for detecting a water flow speed of the hot-water water outlet; the water level detection switch (2) and the stepping motor (8) are both connected with a main controller. According to the concentrated liquid adding control system of the water dispenser, disclosed by the invention, the problem that the use amount of concentrated liquid cannot be accurately controlled is effectively solved.

The invention relates to the technical field of an intelligent water cup, in particular to a detection method, device and system based on an intelligent water cup. The detection method comprises the following steps that element content information in liquid in the water cup is detected in real time, and in addition, the detected element content information is sent to a processor; the processor processes the received element content information, and carries out reminding according to the processing result. Therefore according to the technical scheme, the intelligent design is added on the basis of the traditional drinking water cup, the water drinking habits of different people can be met, in addition, the safe water drinking of people can be ensured, and the use is practical and healthy. People can add self cases or some allergy elements into the water cup, and when the condition that the element content in the water does not reach the case (or allergy) drinking requirement, the prompting or the warning can be realized.

The invention discloses water treating equipment for a waterworks. The water treating equipment comprises a water taking and filtering device, a filtering chamber and an adsorption chamber which are connected sequentially, wherein the water taking and filtering device comprises a water taking tank fixed on a fixing bracket, the bottom surface of the water taking tank is open, a grid is arranged on the bottom surface, and a filtering medium layer is arranged in the water taking tank; a filtering layer is arranged in the filtering chamber, the filtering chamber above the filtering layer is connected with a water inlet pipe connected with the upper part of the water taking tank, and the filtering chamber below the filtering layer is provided with a water outlet; multiple adsorption layers and a vertical water distribution pipe are arranged in the adsorption chamber, the upper end of the vertical water distribution pipe penetrates out of the adsorption layers and is connected with a water distributor, the lower end penetrates out of the adsorption layers, extends out of the adsorption chamber and is connected with the water outlet of the filtering chamber, and the lower part of the adsorption chamber is connected with a water outlet pipe. The water taking and filtering device is arranged at a water taking end, so that sediment at the water taking end can be filtered preliminarily, the filtering chamber and the adsorption chamber can remove other residual impurities and harmful substances in water through filtering, and the equipment also has better filtering removal effect on impurities such as iron, manganese and the like in water.

The invention relates to an improvement of a domestic water dispenser, in particular to an electrolysis barreled water dispenser. The electrolysis barreled water dispenser comprises a water dispenser body and is characterized in that a three-way tube is arranged on a barreled water outlet of the water dispenser body, one water outlet of the three-way tube is communicated with a cold water outlet of the water dispenser and a heater, and the other water outlet of the three-way tube is communicated with an electrolytic bath of an electrolysis water making device. According to the electrolysis barreled water dispenser, the electrolysis device is additionally arranged on a traditional barreled water dispenser; after barreled water is electrolyzed, outlet water is alkalescence water, so that the existing water dispenser can supply conventional drinking water and electrolysis water; meanwhile, compared with a water electrolyzing device, the making cost of existing electrolysis water is greatly reduced, so that devices for the electrolysis water with the good health effect on the human body can enter common people families.

The invention relates to a water purification kettle, belonging to the technical field of domestic drinking water quality advanced treatment. The water purification kettle comprises at least one pair of negative and positive electrodes, an electrolysis power source for supplying power to the negative and positive electrodes and a water kettle, wherein a water-permeable diaphragm prepared from a non-conducting material is arranged between the negative electrode and positive electrode in pair; the water-permeable diaphragm is provided with water-permeable micropores with uniform pore size; the positive electrode and water-permeable diaphragm are packaged by an insulating frame to form an integral unit; the integral unit is fixed into a lid of the water kettle; the lower part of the integral unit is immersed in water stored in the water kettle; and the negative electrode is arranged on the bottom in the water kettle body. When in use, the positive electrode contacts the inside of the kettle body through permeated water of the water-permeable diaphragm. The water purification kettle can generate fewer toxic byproducts while efficiently degrading organic matters in the home terminal drinking water in the water kettle, and the toxic byproducts can not enter the water in the water kettle.

The invention relates to a purification water cup, belonging to the technical field of the further treatment of water quality of drinking water for daily life. The purification water cup comprises at least a pair of negative and positive electrodes, an electrolysis power supply for powering the positive and negative electrodes and a water cup, wherein a water permeable diaphragm is arranged between the negative electrode and the positive electrode which are paired; the water permeable diaphragm is made of a non-conducting material; water permeable micro-pores which are consistent in aperture are formed in the water permeable diaphragm; the positive electrode and the water permeable diaphragm are encapsulated by virtue of an insulation frame to form an integral unit; the integral unit is fixed in a cup cover of the water cup; the lower part of the integral unit is immersed in water stored in a liner of the water cup; the negative electrode is arranged on the bottom of the liner of the water cup; and when in use, the positive electrode is only in contact with the water stored in the liner of the water cup permeated via the water permeable diaphragm. The purification water cup has the advantages that few toxic byproducts are generated and the toxic byproducts are prevented from entering the water in the cup when organic matters in the household terminal drinking water in the cup are degraded.

The invention discloses a drink bottle connector which comprises a holder, a hand wheel, an internal-thread sleeve, an external-thread sleeve, and a drink bottle seal cap. The holder is used for fixing the connector. The handle wheel is connected with the holder and capable of rotating around the holder. The internal-thread sleeve is fixedly connected with the hand wheel and capable of rotating with the hand wheel. The external-thread sleeve is inserted into the internal-thread sleeve and is in threaded fit with the internal-thread sleeve. The drink bottle seal cap is disposed at one end of an external-thread lifting tube and is communicated with the same. The drink bottle connector and a drink dispenser are simple in structure and low in cost. The drink bottle connector enables replacement of drink bottles to be more convenient and sanitary and enables drinking to be safer.

The invention discloses an intelligent drinking water system which comprises a central control device and a drinking water system body. The drinking water system body comprises a central water purifier, at least one pipeline machine and at least one standard water cup; the standard water cup comprises a cup body, a cup sleeve and an identity recognition module; the side surface of the cup sleeve is provided with at least one vertically-distributed liquid level detection notch; the pipeline machine comprises a network module, a flowmeter, a machine body, a water receiving tank, a water cup seat, a water outlet and an electromagnetic valve; an image acquisition module is arranged on the machine body; the image acquisition module comprises a CCD camera, an illumination unit and a data storageunit; and the central control device comprises a network module, a display module, an input module, a main storage module, an image processing module, a primary water outlet amount control module, awater cup recognition module, a user management module, a pipeline machine management module and a report module. The intelligent drinking water system has the advantages of simple structure, realtively low cost, high precision and low network burden. The invention belongs to the technical field of drinking water systems.

The invention provides a remote-controlled automatic cleaning hydrogen generator and a hydrogen-rich water glass, and relates to the technical field of hydrogen production. The hydrogen-rich water glass comprises the hydrogen generator, and a first guide pipe, a second guide pipe, a water pump, a third guide pipe, a gas water bag and a fourth guide pipe are communicated in the hydrogen generator in sequence, so that it is achieved that a gas water bin is cleaned. An electronic circuit board comprises a microcontroller, and the control over a positive electrode and a negative electrode is achieved through the microcontroller. The microcontroller is connected with the water pump and used for controlling the water pump. A Bluetooth control unit is arranged in the microcontroller, and the microcontroller is connected to an antenna and used for building wireless connection with a terminal, so that data is uploaded to the terminal and an instruction issued by the terminal is received; therefore, the information interaction between the terminal and the hydrogen-rich water glass is achieved.

The invention discloses a portable water purifier, and belongs to the technical field of water purifiers. The portable water purifier comprises box bodies, a heating device, an automatic air chargingpump, a portable power source and a controller, wherein the box bodies comprise a left box body and a right box body, and a raw water chamber, a clean water chamber and a heating chamber are respectively arranged in the left box body from top to bottom; a first filtering device is arranged in the raw water chamber, and communicates with the clean water chamber through a first electromagnetic valve; a second filtering device is arranged in the clean water chamber, and communicates with the heating chamber through a second electromagnetic valve; the heating device is arranged at the bottom of the heating chamber, and used for heating water in the heating chamber; the automatic air charging pump is arranged in the right box body, and used for increasing air pressure of the raw water chamber and the clean water chamber; the portable power source is arranged in the right box body, and used for supplying power; and the controller is arranged in the right box body, and the first electromagnetic valve, the second electromagnetic valve and the automatic air charging pump are all connected with the controller. According to the portable water purifier, the problems of poor filtering effect, no sterilization function and slow water purification rate of an existing portable water purifier are solved.

The invention discloses a preparation method of an electrostatic spinning mineralized nanofiber membrane. The preparation method is characterized by comprising the following steps of (1) preparation of a spinning solution, wherein polymer resin and an additive are dissolved into a solvent to prepare a spinning solution A; polymer resin, an additive and a nanoparticle mineralized material are dissolved in a solvent to prepare a spinning solution B; and (2) preparation of the coaxial electrostatic spinning mineralized nanofiber membrane, wherein a substrate is mounted on a receiving device of electrostatic spinning equipment, the obtained spinning solution A and the spinning solution B are injected into an electrostatic spinning device respectively, the spinning solution A serves as a shelllayer and the spinning solution B serves as a core layer, coaxial electrostatic spinning and air curing are carried out, and curing forming is carried out in a coagulating bath to obtain the coaxial electrostatic spinning mineralized nanofiber membrane. The mineralized material and electrostatic spinning nanofibers are combined, the specific surface area is increased, inflow water can be fully mineralized when passing through the membrane, and the mineralization efficiency is improved.

The invention discloses a preparation method of a nano antibacterial PPR cold and hot water pipe. The preparation method comprises the following steps that raw materials are taken according to a conventional method and mixed by a mixing device (24), and then a PPR pipe body is prepared according to the conventional steps. The structural design is reasonable, the operation is simple, the mixing isconvenient and rapid, and simultaneously the prepared PPR cold and hot water pipe has antibacterial function, the water quality is improved and the safety of drinking water is ensured.