944 results about "Water rinsing" patented technology

The invention relates to the technical field of reverse osmosis membrane assembly cleaning, and particularly discloses a cleaning method of a reverse osmosis membrane. The cleaning method of the reverse osmosis membrane comprises the following steps: (1) washing the reverse osmosis membrane with product water of a reverse osmosis membrane system until concentrated water in the membrane is fully replaced with the product water; (2) immersing the cleaned reverse osmosis membrane into an acidic cleaning solution, and controlling the pH value to be 2-2.5; (3) washing the reverse osmosis membrane with product water of a reverse osmosis membrane system until concentrated water in the membrane is fully replaced with the product water; (4) immersing the cleaned reverse osmosis membrane into an alkaline cleaning solution, and controlling the pH value to be 11.5-12; and (5) repeating the steps (1)-(4), and flushing the reverse osmosis membrane with the product water of the reverse osmosis membrane system until the concentrated water in the membrane is fully replaced with the product water. The prepared reverse osmosis membrane has good cleaning efficiency, the permeation flux and the desalination rate of the reverse osmosis membrane are recovered, and the service life of the reverse osmosis membrane is prolonged.

A WC device with a WC body and a flushing water supply device for supplying flush water to the toilet body. The flush water supply device is provided with a water connection for drinking water for use as flush water. The WC body has a bowl-shaped WC body section and a subsequent odor trap. The bowl-shaped WC body section has a porous inner surface which is connected to a device for supplying cleaning fluid for keeping the porous inner surface clean. The flushing water supply device is provided with at least one back-suction safety device, which prevents back-suction of cleaning liquid from the porous inner surface to the water connection. Thus, the WC device completely or at least largely prevents excrement or dirt residues from adhering to the inner surface of the WC body, and the back-suction safety device provides hygienically flawless protection on the drinking water side.

The invention relates to the technical field of polyester fiberboard production, and provides polyester fiberboard production integrated equipment with an automatic waste recycling function, the polyester fiberboard production integrated equipment comprises a recycling box, a material guide groove and a solid-liquid separation box, a material crushing and slicing assembly and a high-pressure water washing assembly are arranged in the recycling box, and the high-pressure water washing assembly is located below the material crushing and slicing assembly; waste materials are sliced and cleaned through cooperation of the material crushing and slicing assembly and the high-pressure water washing assembly, the material guide groove is obliquely formed in the bottom of the recycling box, the material crushing and knocking assembly is arranged above the material guide groove, the electromagnet set is installed below the material guide groove, and secondary cleaning and metal impurity removal are conducted on the waste materials through cooperation of the material crushing and knocking assembly and the electromagnet set. And one end, far away from the recycling box, of the material guide groove extends into the solid-liquid separation box, and through the technical scheme, the problem that the cleaning efficiency is low when an existing polyester fiber board production device recycles and treats waste materials with more impurities and a large amount is solved.

The utility model aims to provide the cleaning line for slicing the silicon wafer, which is simple in structure, energy-saving, environment-friendly and low in cost. According to the utility model, the cleaning part comprises the bubble water generator, the cleaning part comprises the plurality of cleaning tanks, and the silicon wafer slices are sequentially placed in the plurality of cleaning tanks to be cleaned; the plurality of cleaning tanks are sequentially a primary cleaning tank (1), an ultrasonic normal-temperature cleaning tank (2), a normal-temperature bubble water cleaning tank (3), a bubble water soaking cleaning tank (4), a first weak base water cleaning tank (5), a second weak base water cleaning tank (6) and a plurality of pure water rinsing cleaning tanks which are sequentially arranged; the bubble water generator inputs bubble water into the normal-temperature bubble water cleaning tank (3) and the bubble water soaking cleaning tank (4), and quantitative weak base water is added into the first weak base water cleaning tank (5) and the second weak base water cleaning tank (6). The utility model is applied to the field of cleaning equipment.

The utility model discloses pig trotter cleaning equipment. The pig trotter cleaning equipment comprises a box body, a cleaning cylinder, a lifting structure, a cleaning structure and a filtering structure, the cleaning cylinder is arranged above the box body, the lifting structures are arranged on the two sides of the cleaning cylinder, the cleaning structure is arranged in the cleaning cylinder, and the filtering structure is arranged on one side of the box body. Compared with the prior art, the pig trotter cleaning device has the advantages that the pig trotters to be cleaned can be immersed in water in the cleaning barrel to be cleaned, all-directional cleaning can be conveniently conducted on all angles of the pig trotters in the cleaning process, and cleaning dead angles are avoided; and water entering the filtering cavity can be filtered through the filtering plate, the filtered water flows back into the cleaning cavity again after washing the cleaning barrel, water resources can be recycled conveniently, and then waste of the water resources is avoided.

The automatic cat toilet cleaning system comprises a support assembly, a water spraying system, an excrement shoveling device, a cat litter basin, a sewage discharging system and a drying and disinfecting device, the sewage discharging system is located below the cat litter basin, and water is sprayed into the cat litter basin from outside to inside through the water spraying system to wash cat litter, the cat litter basin and a shovel rake; generated sewage flows into a sewage discharge system through a water leakage hole of the cat litter basin, the cat litter is shoveled into a water tank of the sewage discharge system through the cat litter shoveling device, the cat litter is smashed by the smashing device, dissolved with the sewage and then discharged through a sewage discharge pipe, actions such as cat litter shoveling, flushing, smashing, sewage discharge and drying disinfection are fully automatically completed, peculiar smell is removed in time, the two hands are liberated, and cost is saved.

The utility model provides a novel pitting machine for red date processing, which relates to the technical field of pitting for red date processing and comprises a box body, and supporting legs are fixedly mounted at four ends of the bottom of the box body. Red dates are placed in the third placing groove, the top of the water pipe is connected with a water source, the motor and the water pump are started, the motor drives the placing frame to move forwards, water flushes the red dates after the water pump is started, when the placing frame continues to move forwards to the position below the fan, the water pump is closed, the fan is started to blow the red dates dry, and manual washing of the red dates is avoided. When the placing frame moves to the position under the pit removing device, a motor is closed, a second electric telescopic rod is started, a pressing plate is driven to descend, when a pressing groove abuts against the red dates, the second electric telescopic rod is closed, a first electric telescopic rod is started, an annular cutter is driven to be inserted into the red dates, red date pits extrude springs and a circular plate till the annular cutter penetrates through the red dates, the springs are subjected to force releasing, and the circular plate is driven to reset; red date pits fall down from the outlet, and the conditions that inconvenience is caused during manual pit removal and hands are scratched by a knife are avoided.

The embodiment of the invention relates to the technical field of silicon wafer cleaning, and discloses a cleaning method and system for improving the surface metal level of a silicon wafer. The method comprises the steps that a silicon wafer is ground, the treated ground silicon wafer is washed with deionized water, the treated silicon wafer is washed with a DHF, ammonia water, hydrogen peroxide and water mixed solution at the room temperature for 270-300 s, and then the silicon wafer is washed with high-purity water for 270-300 s; the washed silicon wafer is put into an ozone and hydrochloric acid mixed cleaning tank to be washed for 270-300 s, and then rapid high-purity water secondary washing is carried out for 270-300 s; the silicon wafer subjected to secondary flushing is cleaned for 270-300 s by adopting a nitric acid solution under the room temperature condition, and then rapid high-purity water third-time flushing is carried out for 270-300 s; and drying the silicon wafer which is washed for the third time, and packaging to obtain a final silicon wafer product. The technical problem that precious metal is difficult to remove in the silicon wafer cleaning process in the prior art can be at least solved.

The utility model relates to the technical field of desludging machines, and discloses a structure for preventing the nozzle of a pipe in a desludging machine from being blocked, including a desludging machine housing and a plurality of support frames fixedly connected to the inner wall of one side of the desludging machine housing, the tops of the plurality of support frames are provided with mounting holes and water pipes are fixed by clamps, one side of the water pipe is provided with a plurality of nozzles, the tops of the plurality of support frames are fixedly connected to a vertical bearing seat, and a connecting rod is provided in the vertical bearing seat. The utility model sprays out medium water from the nozzle to wash the filter cloth in the desludging machine, and the arc-shaped rod and the clearing assembly are away from the nozzle and avoid the position. When clearing the blockage, the connecting rod drives the arc-shaped rod to flip through the driving component, and the clearing assembly provided on the fixed seat at the end of the arc-shaped rod is inserted into the nozzle of the nozzle, and the cleaning operation is performed, so as to avoid the nozzle being blocked when the medium water contains certain impurities, thereby affecting the washing efficiency of the medium water.

A composition of which the main surfactant content is mainly bio based shows a high cleaning capability in the cleaning of textiles or fabrics. Biosurfactants and fatty acid salts further support the cleaning capability for cleaning of fatty stains. A method for cleaning a surface of an article includes combining the composition and the article with water, maintaining a temperature of the water of from 15° C. to 100° C., over a period of from 15 minutes to 240 minutes, while tentatively moving the article in the water, separating the article from the water, and optionally rinsing the article with further water.

The invention relates to the technical field of kitchen appliances, and discloses a fruit and vegetable cleaning device, a control method thereof and an integrated water tank. The fruit and vegetable cleaning device comprises a first water tank, and a first water outlet is formed in the bottom of the first water tank; at least part of the cleaning component is arranged in the first water tank, and the cleaning component is used for disturbing water in the first water tank; the flow guide plate is arranged at the first water drainage opening, and a water drainage gap is formed between the flow guide plate and the side wall of the first water drainage opening; the deposition tank is arranged on the lower side of the first water tank and is communicated with the first water tank through the drainage gap; the drainage assembly is connected with the deposition tank and used for draining water in the first water tank and the deposition tank; and the flushing assembly is connected with the deposition tank and used for flushing water into the deposition tank. According to the fruit and vegetable cleaning device, silt and food materials can be isolated during cleaning, and the silt is automatically cleaned, so that the cleaning effect on the food materials and the use experience of a user are improved.

The invention relates to the technical field of plastic recovery devices, in particular to a plastic recovery device and system for plastic product production, the plastic recovery device comprises a mounting underframe, a discharging frame, two cleaning boxes and a feeding frame, the discharging frame is mounted on the mounting underframe, the two cleaning boxes are mounted on the discharging frame, the feeding frame is connected with the two cleaning boxes, and the plastic recovery device further comprises a working assembly; the working assembly comprises an upper water tank, a water outlet frame, a blocking pore plate, a backflow component and a control component. The upper water tank is installed on the installation bottom frame and connected with the two cleaning boxes, the water outlet frame is connected with the two cleaning boxes, the blocking hole plate is installed on the water outlet frame, the backflow component is connected with the water outlet frame and used for recycling flowing water for flushing, and the control component is connected with the cleaning boxes and used for controlling the cleaning work of the two cleaning boxes. And broken plastic products can be effectively and thoroughly cleaned through the arranged components in a flowing water flushing mode in cooperation with the arranged corresponding structures, so that the cleaning effect of the plastic products is better.

The utility model provides pile core soil cleaning equipment and a cleaning spray head, which are convenient for washing pile core soil by using high-pressure water and can improve the cleaning cleanliness of a pile core, and relates to the technical field of building construction auxiliary equipment. The pile core soil cleaning spray head comprises a water inlet pipe and a spray cap arranged at the lower end of the water inlet pipe in a covering mode, the spray cap is in running fit with the water inlet pipe so as to rotate around the water inlet pipe, and a leakage-proof sealing ring is arranged between the spray cap and the water inlet pipe. At least one side nozzle capable of generating recoil force enabling the spray cap to rotate around the water inlet pipe is arranged on the periphery of the spray cap, and at least two downward lower nozzles are arranged on the end face of the spray cap. The pile core soil cleaning device is convenient to use, and pile core soil cleaning cleanliness and cleaning efficiency are improved.

The present invention discloses a PET bottle flakes washing machine, comprising an unpacking device, a floating washing device, a rinsing device, a flushing device and a drying device. The semi-clean bottle flakes are unpacked by the unpacking machine, and are sent to the floating washing device by the unpacking conveyor belt to remove the metal dirt and other high-density impurities in the PET bottle flakes. The cleaned PET bottle flakes are automatically salvaged and sent to the rinsing device by the second blower. The impurities such as glue attached to the PET bottle flakes are removed by rinsing with high-temperature alkaline water. After automatic salvage, the third feeding blower sends them to the hot water flushing device, and the high-temperature and high-pressure hot water is used to thoroughly clean the PET bottle flakes to meet the requirements of high-quality PET bottle flakes. The cleaned PET bottle flakes are sent to the drying device by the fourth blower, and the drying time is automatically adjusted by the humidity detection system. After meeting the requirements of the humidity of high-quality PET bottle flakes, they are sent to the discharge port for standby. The process is simple, the manual operation is convenient, the water resource waste is small, the noise is small, the floor space is small, and the sorted PET bottle flakes are of high quality.

The invention relates to the technical field of pipeline flushing, in particular to a mine filling pipeline flushing device which comprises a walking assembly, a plurality of cleaning assemblies arranged on the outer side of the walking assembly and an adjusting assembly arranged on the outer side of a cleaning bin. The guiding assembly is arranged outside the walking assembly, and the rotating assembly is arranged outside the walking assembly. According to the cleaning device, when the cleaning bin rotates to the upper portion, the first material pipe collects stains, the first material pipe flushes the inner wall of the pipeline, and when the cleaning bin rotates to the lower portion, the second material pipe collects the stains, the stains move in the specific direction, and the situation that when bristles and water are used for flushing the upper portion of the inner wall of the pipeline, the stains are damaged is avoided. Brushed-off stains and water generated by washing can drop to the position below the inner wall of the pipeline, the situation that the inner wall of the cleaned pipeline is smudged again due to the fact that the dropped stains and water are splashed all around is avoided, the inner wall of the pipeline is cleaned more comprehensively, and the cleaning effect is improved.

The invention provides a flexible packaging process of an AM glass-based small-spacing display screen, which comprises the following steps: substrate pretreatment: carrying out ultrasonic cleaning for 5 minutes by using a mixed solution of deionized water and isopropyl alcohol in a volume ratio of 3: 1 at 45-55 DEG C, washing for 2 minutes by using deionized water, drying, and activating the surface of the substrate by using plasma; transferring a large amount of LED chips: aligning the LED chips, transferring the LED chips to a preset position of the activated substrate, and fixing the LED chips on the substrate; coating high-thermal-conductivity packaging glue: carrying out plasma cleaning and 120 DEG C baking dehumidification on the substrate on which the chip is fixed, and then directionally coating the high-thermal-conductivity glue; curing the high-thermal-conductivity glue, namely pre-curing the substrate coated with the high-thermal-conductivity glue and then carrying out stepped curing; and optical film lamination: performing quantum dot film lamination and anti-reflection layer spraying on the surface of the cured substrate. The heat-conducting glue with polyurethane modified epoxy resin and AlN / BN / carbon fiber composite filler is adopted, so that the heat-conducting effect is effectively improved, and the service life of an LED is prolonged.

According to the lead-acid battery recycling treatment equipment, a plurality of arrayed water tanks are arranged on a cleaning tank, and overflow ports are formed in the tops of the sides, close to the upstream, of the water tanks; the stirring device comprises a plurality of stirring structures, the stirring structures are installed in the corresponding water tanks, and the rotating stirring structures are used for taking up materials in the water tanks and conveying the materials to the next water tank; the flushing device comprises a plurality of spraying pipes, is mounted above the corresponding water tanks and is used for performing high-pressure water spraying flushing on the materials in the lower path; a first water receiving disc and a second water receiving disc are arranged below the cleaning tank, and the first water receiving disc is used for receiving overflow liquid of at least two water tanks at the tail end and flushing the upstream part; the second water receiving disc is used for receiving overflow liquid of other water tanks; liquid at the first water pan is pumped by the flushing device and is sprayed to the water tank corresponding to the second water pan; the device is novel in structure, the cleaning effect and efficiency of material fragments are improved, and waste of flushing water and recoverable substances can be reduced.

The invention discloses a circuit board finished product sand blasting line and a processing method. The circuit board finished product sand blasting line comprises a feeding area, a sand blasting device, a multi-stage washing device, a drying device, a cooling area and a discharging area which are sequentially arranged in the conveying direction. Wherein the multi-stage water washing device innovatively combines six cleaning modes of inclined spraying, circulating water washing, pressurized water washing, high-pressure water washing, ultrasonic cleaning and deionized water rinsing to form a progressive treatment system, and various pollutants can be effectively removed; the drying device adopts a three-stage synergistic drying mode of suction drying, strong wind blow-drying and hot wind drying, so that the drying quality is ensured, and the energy efficiency is improved. The invention further provides a matched processing method, and the technical problems of dispersed procedures, incomplete cleaning and the like of the traditional process are solved by optimizing the procedure flow and parameter control. The technical scheme has the advantages of being high in automation degree, good in cleaning effect, high in drying efficiency and the like, and the quality stability and the production efficiency of circuit board surface treatment are remarkably improved.

The invention relates to a horizontal automatic bathing machine which comprises a bathing cabin and a cabin cover, the bathing cabin comprises a base, the upper portion of the base is fixedly connected with a horizontal rectangular lower cabin body, the cabin cover comprises a rectangular upper shell cover, the rear side of the upper shell cover is hinged to the lower cabin body through a plurality of hinges, and a cabin opening mechanism is arranged on the rear side of the lower cabin body. The cabin opening mechanism drives the upper shell cover to be opened and closed; a water spraying flushing mechanism is arranged on the bathing cabin and consists of a lower flushing assembly and an upper flushing assembly; a roller type bed bent frame is arranged in the lower cabin body on the upper side of the lower flushing assembly, and a water way assembly connected with the lower flushing assembly is arranged in a base of the bathing cabin. The main body of the automatic bathing machine is the horizontally-arranged cabin body, people can lie in the cabin body to achieve automatic bathing, and the automatic bathing machine has good comfort and cleaning effect.

The utility model discloses a thermal spraying equipment nozzle cleaning device which comprises a supporting leg and a swing plate, a cleaning box is arranged at the upper end of the supporting leg, a connecting port is formed in the outer wall of the cleaning box, a swing motor is installed in the connecting port, a connecting shaft is installed at the end of the swing motor, and the swing motor is connected with the connecting shaft. The swing plate is arranged at the end of the connecting shaft, a clamping hole is formed in the swing plate, a rubber pad is arranged in the clamping hole, and connecting holes are formed in the outer walls of the left end and the right end of the swing plate. According to the nozzle cleaning device for the thermal spraying equipment, a nozzle is connected with a clamping hole in a clamped mode, the nozzle can be connected with a swing plate, the swing plate is driven by a swing motor to swing, impurities, liquid and other substances in the nozzle can be thrown into the cleaning box through swing force, the nozzle is pretreated, and a drawing cleaning head can be stretched randomly; and the drawing cleaning head can be aligned with the nozzle to carry out water washing work on the nozzle.

The invention discloses a preparation method of a vacancy coupled nano tip material for electrochemical seawater uranium extraction, which comprises the following steps: slicing foamed nickel, performing ultrasonic treatment in acetone, ethanol, pure water and a hydrochloric acid solution in sequence, thoroughly washing with pure water, and drying for later use; the preparation method comprises the following steps: dissolving a cobalt source, urea and ammonium fluoride in pure water, transferring the solution into a polytetrafluoroethylene lining, then adding treated foamed nickel, reacting in a high-pressure reactor, taking out a material, washing with pure water, and drying; and then calcining the dried flaky material, and treating with Ar plasma after calcining to obtain the vacancy-coupled nano tip material. The Co3O4 nano tip array rich in oxygen vacancies grows on the surface of the foamed nickel, an enhanced electric field on the nano tip induces OH <-> in a solution outside an electrode surface interface to be enriched, a local alkaline pH protection layer is formed, and attachment and deposition of metal salt on the surface of the electrode are reduced.

The invention discloses an unmanned aerial vehicle carrying-based electrified water washing device, which comprises an unmanned aerial vehicle, and further comprises a water tank, a high-pressure pump, a water spray pipe and a nozzle, the water tank and the high-pressure pump are fixedly mounted on the unmanned aerial vehicle, and the water tank and the high-pressure pump are connected through a pipeline; the water spraying pipe is fixedly installed on the high-pressure pump and extends in the direction away from one side face of the water tank, the nozzle is installed at the end of the water spraying pipe, and a retaining auxiliary mechanism is further arranged on the other side, opposite to the water spraying pipe, of the water tank. According to the method, the dirty insulator found in operation and maintenance can be washed with live water in time, the line does not need to be powered off, a method that live working personnel climb a pole to replace the insulator does not need to be adopted, the power supply reliability of the power transmission line is greatly improved, the working risk of the working personnel is reduced, and the working efficiency is improved. And the method has great practicability for daily operation and maintenance management and control of management and operation and maintenance departments.

The utility model belongs to the technical field of cleaning machines, and particularly relates to a movable type multifunctional efficient cleaning machine which comprises a box body. The fuel heating device is arranged on the box body and is used for heating liquid and / or gas in the box body; a heating outlet of the fuel heating device is connected with the cleaning gun through an output pipe and / or connected with the pulse output port through a pulse pipeline, and a first electromagnetic valve is arranged in the pulse pipeline. A water outlet of the water pump is connected with a heating inlet of the fuel heating device and used for inputting liquid into the fuel heating device; the gas pump is connected with the heating inlet of the fuel heating device and used for inputting gas to the heating device; a power supply device; and an electric control device. The fuel heating device, the water pump, the air pump and the power supply device are electrically connected with the electric control device; the movable multifunctional efficient cleaning machine has various flushing functions such as high-pressure hot water flushing, high-pressure warm water flushing, high-pressure cold water flushing, high-pressure hot air drying, high-pressure cold air drying, high-pressure gas mixing flushing and high-pressure gas explosion pulse flushing.

A flush toilet includes a reservoir tank, a bowl, a rim spout port, a discharge trap conduit, a jet spout port configured to spout flush water toward an inlet of the discharge trap conduit, a jet water conduit configured to supply the flush water from the reservoir tank to the jet spout port, and a discharge device configured to supply or stop supplying the flush water to the jet water conduit, wherein the flush water is spouted at a first flow rate from the jet spout port when the discharge device is driven and the flush water in the reservoir tank flows into the jet water conduit and, after spouting of the first flow rate ends, the flush water is spouted at a second flow rate from the jet spout port due to the flush water retained in the jet water conduit flowing toward the jet spout port.

The invention discloses a multi-biological aerated filter linkage backwashing control method and application thereof, and belongs to the technical field of sewage treatment.According to the backwashing control method, original independent sequential backwashing of multiple biological aerated filters is improved into linkage backwashing of two biological aerated filters, the backwashing efficiency is greatly improved, and the backwashing time is shortened. The problems that the backwashing process is too long when the multi-aeration biological filter is cleaned, and a backwashing fan and a backwashing pump have idle time and are frequently started and stopped can be solved, and the pollution and blockage degree of a filter material in the flushed filter can be pre-judged according to the current value characteristic of the backwashing fan in the first half time of the gas flushing stage. According to the backwashing control method, the gas washing stage time and the water washing stage time are dynamically adjusted, the backwashing effect can be guaranteed, incomplete backwashing or excessive backwashing is avoided, and the backwashing control method has wide application prospects in the field of sewage treatment.

The carrier gas heat exchange equipment easy to clean is of a shell-and-tube structure, the heat exchange tube serves as a carrier gas channel, carrier gas passes through the tube pass, and cooling water passes through the shell pass; heat exchange tubes in the heat exchange tube bundle are arranged in a vertical array, and washing nozzles are arranged at the tops of the heat exchange tubes; when the heat exchange tube needs to be cleaned, the water supply equipment based on the high-pressure flushing water provides high-pressure water for the flushing nozzles, the high-pressure flushing water is sprayed to the inner cavity of the heat exchange tube through the flushing nozzles, and dust accumulated in the inner cavity is flushed; due to the fact that the heat exchange tube is a vertically-arranged straight tube, flushing water can flow out along the inner cavity of the heat exchange tube based on gravity, and dust accumulated in the heat exchange tube can be cleaned without manual cleaning. According to the technical scheme, carrier gas generated after high-humidity sludge is dried is subjected to heat exchange, the heat exchange pipes are cleaned in the mode that water is sprayed to the pipe pass for flushing, the complexity of cleaning operation of the heat exchange structure can be reduced, and the cleaning time of the heat exchange pipe bundle is effectively shortened.

The invention relates to the technical field of electrical equipment, and discloses a zero-stale-water regulation and control method and device for a water purifier, computer equipment, the water purifier, a medium and a program product. The regulation and control method comprises the following steps: when water making of the water purifier is finished, taking the water making end moment of the water purifier as a starting moment; calculating a first difference value between the actual temperature of water at the preset position of the water purifier and the environment temperature; when the first difference value is larger than a preset first threshold value, process parameters of the water temperature adjusting process at the preset position are obtained; according to the process parameters, determining a first actual interval duration for starting a zero aged water flushing function in the water purifier; and when a first actual time length from the starting moment to the current moment reaches a first actual interval time length, starting a zero-aged-water washing function. According to the method, the interval duration of the zero aged water flushing function is dynamically adjusted in combination with the water temperature change process parameters, and the problem that the flushing opportunity is unreasonable due to the fact that the water purifier cannot dynamically adjust the starting time of the zero aged water flushing function according to the water temperature change is solved.

The invention relates to the technical field of surface treatment, discloses a dry ice sand blasting-chemical dissolution-ultrasonic collaborative cleaning process for a nano aluminum oxide coating part, and aims to overcome the defects of an existing cleaning technology in the aspects of removing a complex deposited film, protecting the coating integrity and improving the cleaning efficiency. The method comprises the steps of isopropanol soaking treatment, flowing pure water flushing, hot water soaking treatment, carbon dioxide dry ice sand blasting treatment, chemical cleaning of a niflumic acid mixed solution, high-pressure water washing, ultrasonic cleaning and the like. By the adoption of the technical scheme, the efficient, thorough and lossless cleaning effect can be achieved, and the high-standard requirement for cleaning of the nanometer aluminum oxide coating part in the modern industry is met.

The utility model discloses a central air conditioner pipeline cleaning and disinfecting device which comprises an installation box, a disinfecting water tank and a cleaning water tank are fixedly arranged in the installation box, and a filtering assembly used for filtering particles in water is arranged in the installation box and located on the side face of the disinfecting water tank and the side face of the cleaning water tank. Stop valves are arranged on the sides, close to the filtering assembly, of the disinfection water tank and the cleaning water tank, the sides, close to the filtering assembly, of the two stop valves are jointly connected with a connecting water pipe, and one end of the connecting water pipe is connected with the filtering assembly. The disinfection water tank and the cleaning water tank are connected with a set of stop valves respectively and then connected with the filtering assembly, small particles and precipitates in water are filtered through the filtering net, the situation that the particles enter an air conditioner pipeline, and consequently the air conditioner effect becomes poor is avoided, and meanwhile after disinfection is conducted through disinfectant fluid, the stop valves cut off the disinfection water tank, so that the disinfection effect is improved. And water in the cleaning water tank is used for flushing the pipeline, so that the disinfectant fluid in the pipeline is cleaned.

This invention discloses a pH electrode flushing device, a desulfurization absorption tower system, and a control method. The pH electrode flushing device includes an industrial water flushing pipeline filter, a check valve, an industrial water inlet manual valve, and an industrial flushing solenoid valve connected in sequence. An annular flushing opening pipe extending obliquely into the electrode flow tank is provided at the upper part of the electrode flow tank. Multiple sets of flushing nozzles are provided on the annular flushing opening pipe. The annular flushing opening pipe is connected to the industrial water flushing solenoid valve. An inlet pipe is provided on one side of the lower part of the electrode flow tank. A drain pipe is provided at the lower part of the electrode flow tank. The bottom of the drain pipe is connected to the side wall of the top of the electrode flow tank through the flow tank overflow pipe. A pH electrode is provided at the top center of the electrode flow tank. It has the advantages of high monitoring accuracy, more stable operation, fast adjustment response, and small control fluctuation.