84results about How to "Reduced chance of spoilage" patented technology

A hydrate of brain protein is prepared from pig's brain through adding purified water, homogenizing, heating, cooling, regulating pH=1.5-2.0, enzymolyzing, regulating pH=7.7-8.0, enzymolyzing, regulating pH=2.5-3.0 freezing, thawing, filter, regulating pH to become neutral, ultrafiltering, concentrating, sterilizing, adding amino acids, regulating peptide map, diluting, and steam sterilizing.

The invention discloses an extracting method of carnosine, which comprises the following steps: removing non-muscle tissue in the animal meat; washing; drying; grinding; adding water to stir into slurry; proceeding double-enzyme hydrolysis; proceeding enzyme inactivation; separating supernatant; adsorbing through hydroxy agustite chromatographic column; hyperfiltering through hyperfiltering film; collecting filtrate; spraying to dry carnosine liquid; collecting dried powder; packing in the vacuum.

The embodiment of the invention discloses an intelligent refrigerator control method and a related device. The method comprises the steps that preset data in an intelligent refrigerator are collectedthrough sensor equipment; the preset data are analyzed by the sensor equipment to generate food state information aiming at food; and a storage mode in the intelligent refrigerator is adjusted according to the food state information. It is clear that by means of the intelligent refrigerator control method and the related device, the intellectuality and safety of food storage of the intelligent refrigerator are improved, the probability that the food goes bad is reduced, grain is further saved, and the physical health of a user is protected.

The invention discloses a preparation process method of N-methyl-1, 3-propane diamine, and belongs to the technical field of organic synthesis. According to the method, monomethylamine and acrylonitrile are used as raw materials, an intermediate 3-methylaminopropionitrile is generated through a reaction in a micro-channel reactor, the intermediate is mixed with hydrogen and enters a catalyst fixedbed for a hydrogenation reaction, and finally the product N-methyl-1, 3-propane diamine is obtained. According to the preparation process method of N-methyl-1, 3-propane diamine, the method is simple, continuous production can be achieved, the reaction time is short, the side reaction occurrence probability is low, the product yield reaches 90-95%, and the productivity is improved.

The invention relates to the technical field of logistics information, in particular to a food-logistics supply-chain model. The food-logistics supply-chain model comprises four submodules, i.e. an agricultural-product producing submodule, a transporting submodule, a warehousing submodule and a dispatching submodule, wherein in an agricultural-product producing process / link, raw materials are provided for a food supply chain; in a transporting link, the products of the agricultural-product producing process / link are transported to food processing enterprises; in a warehousing process / link, food finished products / semi-finished products are warehoused; in a dispatching process / link, the food finished products / semi-finished products are dispatched among required enterprises. According to the food-logistics supply-chain model, the period in advance can be effectively shortened, the satisfying rate of one-time dispatching is increased, the operating expenses of a dispatching center are reduced, the dispatching expenses are decreased, the deteriorating rate of foods in transit is decreased, and the dispatching cost is successfully lowered.

The invention discloses an edible oil product quality safety intelligent detection system based on big data. The system comprises a storage environment parameter detection module, a parameter preprocessing module, a sampling acquisition module, a quality parameter detection module, a parameter analysis module, a parameter database, a cloud server, a remote control center and a display module. Thestorage environment parameter detection module and the quality parameter detection module are used for detecting environment parameters and quality parameters of the edible oil storage environment, incombination with the parameter analysis module, an edible oil environment influence index and a quality influence index are counted, meanwhile, different levels of environment treatment measures aretaken on the edible oil storage environment according to the environment influence index, edible oil quality safety can be effectively and rapidly detected in multiple aspects, detection efficiency and the intelligent degree are improved, quantitative display of the influence result of the storage environment parameters and the quality parameters on the edible oil quality is achieved, and relatedreference bases are provided for follow-up edible oil storage.

The invention relates to fermented soya beans and a processing method thereof and belongs to the field of food processing. The processing method comprises the following steps: soaking soybean raw materials by using a soaking solution, cooking the soybean raw materials, inoculating fermentation strain to the cooked soybean raw materials, fermenting for a first time to obtain soybean yeast, mixing the soybean yeast with auxiliary materials according to a weight ratio of 1 to (0.5-1.2), then fermenting for a second time to obtain the fermented soya beans, wherein the soybean raw materials comprise at least one of black soybeans and yellow soybeans; the soaking solution comprises a mixed solution of water and honey; the fermentation strain comprises aspergillus oryzae. The auxiliary materials comprise the following components in parts by weight: 3-4 parts of salt, 1-3 parts of aginomoto, 2-3 parts of chilies, 0.4-0.8 part of liquorice root, 1-1.5 parts of kudzuvine root powder, 0.3-0.5 part of citric acid and 0.7-1 part of tomato powder. The processing method is simple, is easy to operate and easy to master, and can achieve large-scale production; the fermented soya beans are excellent in aroma and taste, low in content of nitrite and relatively high in content of protein.

The invention discloses quick-frozen premixed glutinous rice ball flour and a preparation method thereof. The quick-frozen premixed glutinous rice ball flour comprises the following ingredients in parts by weight: 100 parts of raw glutinous rice flour, 50-300 parts of modified glutinous rice flour, and auxiliary materials; and the auxiliary materials comprise 5-50 parts of long-shaped rice flour, 1-20 parts of a modifier, and 10-50 parts of white sugar powder. A production system of the raw glutinous rice flour comprises a soaking part, a bucket elevator, a material storage tank, a pulp grinding machine, a pulp storage tank, a fine grinding part, a pressure filter, and a low-temperature vacuum drying machine. According to a preparation method of the quick-frozen premixed glutinous rice ball flour, formulas are screened; and improvement factors, including the modifier, a glutinous rice flour modification method, raw material types (namely, the raw glutinous rice flour, the modified glutinous rice flour, and the long-shaped rice flour are used in collocation), proportion of the raw materials and so on, are adopted so that glutinous rice balls prepared by using the quick-frozen premixed glutinous rice ball flour are suitable for preservation in freezing environment, and thus, the quick-frozen glutinous rice balls are guaranteed for good quality after being cooked.

The invention provides grass carp feed, and belongs to the field of fish feed. In order to solve the problems that the grass carp quality is reduced and various diseases easily happen, the grass carp feed is provided. The grass carp feed comprises, by weight, 150-200 parts of peanut cakes, 50-80 parts of fish meal, 20-30 parts of duckweed fermentation objects, 30-40 parts of brewer grain fermentation objects, 2-5 parts of vegetable oil and 1-5 parts of complex enzyme preparations; the complex enzyme preparations are one of or a mixture of two or more of papain, xylanase, cellulose, pectinase and amylase. According to the grass carp feed, various nutriments in the feed are reasonably matched through type selection and content selection of materials according to the proportion of the components, the feed can be saved, the drug quantity can be reduced, the feeding cost can be reduced, and the grass carp breeding benefits can be improved.

The invention discloses an extracting method of carnosine, which comprises the following steps: removing non-muscle tissue in the animal meat; washing; drying; grinding; adding water to stir into slurry; proceeding double-enzyme hydrolysis; proceeding enzyme inactivation; separating supernatant; adsorbing through hydroxy agustite chromatographic column; hyperfiltering through hyperfiltering film; collecting filtrate; spraying to dry carnosine liquid; collecting dried powder; packing in the vacuum.

A hydrate of brain protein is prepared from pig's brain through adding purified water, homogenizing, heating, cooling, regulating pH=1.5-2.0, enzymolyzing, regulating pH=7.7-8.0, enzymolyzing, regulating pH=2.5-3.0 freezing, thawing, filter, regulating pH to become neutral, ultrafiltering, concentrating, sterilizing, adding amino acids, regulating peptide map, diluting, and steam sterilizing.

The invention relates to a ham Zongzi and a processing technology thereof. The ham Zongzi is prepared from the following raw materials by weight: 100 to 300 parts of glutinous rice, 7 to 21 parts of ham, 10 to 30 parts of oil, 0.5 to 1.5 parts of monosodium glutamate, 0.2 to 0.6 part of salt, 1 to 3 parts of white sugar, 4 to 12 parts of Micong (a kind of chive) and 8 to 24 parts of carrots. The processing technology for the ham Zongzi comprises the following successive steps: pretreatment of bamboo leaves; pretreatment of Micong (a kind of chive) and carrots; pretreatment of glutinous rice; mixing of rice materials; preparation of a raw Zongzi; preparation of a cooked Zongzi; precooling; quick-freezing; and warehousing and refrigeration. The invention has the following advantages: with the processing technology in the invention, the cooking time for the raw Zongzi can be shortened, so the sensory and flavor quality of the ham Zongzi can be improved, the phenomenon of retrogradation of the ham Zongzi can be alleviated, and the viscosity and gelling properties of the Zongzi can be enhanced; meanwhile, the processing technology substantially reduces the deterioration rate of the ham Zongzi, so economic benefits are increased.

Disclosed is a vinylene carbonate storage method. The method pressurizes the mixture of vinylene carbonate and organic solvent out of the sun; the organic solvent is one or more organic solvents which are in liquid state at normal temperature and do not react with vinylene carbonate at 0-25 DEG C. Storing the vinylene carbonate in the mixture of organic solvent, the method greatly reduces the deterioration rate of the vinylene carbonate under room temperature, thus remarkably prolonging storage time.

The invention discloses a method for preparing porous starch embedded walnut oil powder, comprising the following steps: weighing a certain amount of walnut oil, adding a certain amount of porous starch to allow the mass-volume concentration to reach 20-45 %, fully stirring, uniformly mixing, carrying out spray drying by a spray dryer to prepare powdery walnut oil, packaging, and sealing, wherein the conditions of spray drying comprise an air inlet temperature of 160-185 DEG C, an air out temperature of 80-88 DEG C, a flow of 8.5 ml / min, and a rotating speed of an atomizer being 25000-45000 r / min. Compared with walnut oil without using an embedding agent, the deterioration rate is reduced by up to 36 %, and the shelf life of the porous starch embedded walnut oil powder can be as long as 32 months.

The invention provides a method for storing rice. The method includes the following steps that a, unhulled rice is harvested, namely, the unhulled rice is planted according to a normal unhulled rice planting method, and the unhulled rice is harvested according to normal procedures after being ripe; b, the unhulled rice is dried, namely, the harvested unhulled rice is aired in outdoor sunlight at room temperature or mechanically dried, and the moisture content of the unhulled rice is reduced to below 12%; c, the unhulled rice is hulled, namely, the unhulled rice is hulled in a rice huller; d, storage is conducted, namely, the hulled rice is placed in woven bags, the woven bags are overlapped into rows one by one, the multiple rows of woven bags are stacked on a bracket, and a ventilation space is formed between every two rows of the stacked woven bags. Compared with the prior art, the method has the advantages that the method is simple, the storage and quality guarantee time of rice grains can be prolonged, and the deterioration rate is reduced.

The invention relates to a fish meal preparation process, which specifically comprises the following steps: S1. thawing raw materials; S2. taking material; 3. conveying raw materials; S4. cooking; S5.pressing and separating; S6. drying; S7. sieving; S8. cooling; S9. adding antioxidants; S10. sieving and crushing; S11. mixing; S12. stacking. The antioxidant comprises the following components in parts by weight: 15-40 parts of ethoxyquinoline, 5-20 parts of butyl hydroxyanisole, 5-25 parts of dibutylhydroxytoluene, 5-15 parts of disodium ethylenediamine tetraacetate and 20-40 parts of additive.The invention has the effect of prolonging the shelf life of fish meal.

The invention relates to an intelligent oil-water separator, in particular to an intelligent oil-water separator for foodservice industry. The intelligent oil-water separator comprises a main box body, wherein a liquid inlet, a drain outlet and an oil outlet are formed in the main box body; an oil-water separating cavity is formed in the main box body, and the liquid inlet is communicated with the inside of the oil-water separating cavity; an oil-separating funnel is arranged in the oil-water separating cavity, and the oil-separating funnel is located at the upper end of the oil-water separating cavity; the upper end of the oil-separating funnel is an oil inlet of the funnel and the lower end is an oil outlet of the funnel; the oil inlet of the funnel is communicated with the inside of the oil-water separating cavity, and the oil outlet of the funnel is communicated with the oil outlet through an oil outlet pipe; and a driving device is also arranged on the oil-water separator to drive the oil-separating funnel to move up and down. The oil-water separating device provided by the invention is simple in structure, small in spatial volume and low in cost, and can be directly arranged in a kitchen of a restaurant or a dinning hall.

The invention belongs to the technical field of food processing and provides antibacterial sesame paste and a preparation method thereof. The antibacterial sesame paste is prepared from the following components in parts by weight: 30 to 45 parts of black sesame, 11 to 17 parts of cooked soybean, 2 to 8 parts of cooked shrimp meat, 5 to 10 parts of cooked fish, 1 to 3 parts of mashed garlic, 2 to 5 parts of mashed ginger, 10 to 13 parts of Chinese medicinal herb mixed powder and 2 to 13 parts of lycopene powder. The invention aims at providing the antibacterial sesame paste and the preparation method thereof; a Chinese medicinal herb mixture with an anti-mould effect is added into the antibacterial sesame paste and the lycopene with an anti-oxidization effect is added so that the sesame paste is prevented from mildew; meanwhile, a chemical additive is not added so that the sesame paste is safe and reliable to eat. The preparation method provided by the invention is simple and the prepared sesame paste is mellow and delicious and can be used for improving the immunity of human bodies.

The invention relates to a disposable venous nutrition transfusion bag film. The film comprises a heat sealing layer A, a structure layer B, a bonding layer C and an external layer D which are sequentially arranged from inside to outside, the material of the heat sealing layer A is ethylene-vinyl acetate (EVA), the material of the structure layer B is mixed resin composed of polyethylene (PE) and ethylene-octylene copolymer (POE), the material of the bonding layer C is maleic anhydride (MAH) modified ethylene-octylene copolymer (POE), and the material of the external layer D is mixed resin composed of polyester elastomer (TPEE), polyamide (PA) and a compatilizer. The disposable venous nutrition transfusion bag film can be disinfected through gamma-ray irradiation disinfection or 115-125DEG C high temperature steam disinfection, and has the advantages of no need of a plasticizer, few migration precipitates, excellent medicine compatibility, low making cost, high barrier performances, good protection on treatment and nutrition transfusion, reduction of the deterioration probability of medicines, and guaranteeing of patients' medicine taking safety.

The invention provides a continuous synthesis method of 1,1'-bicyclo[1.1.1]pentane-1,3-diethyl ketone organic substance. The continuous synthesis method comprises the steps of under the irradiation ofa light source, continuously conveying a raw material A and a raw material B into a continuous reaction device for a continuous photochemical reaction to obtain the 1,1'-bicyclo[1.1.1]pentane-1,3-diethyl ketone organic substance with a structure shown in a formula (III); using a temperature control device for controlling the reaction temperature in the continuous reaction device, wherein the rawmaterial A has a structure shown in a formula (I), and the raw material B has a structure shown in a formula (II). By adopting propellane with substituents as a reaction raw material and carrying outthe photochemical reaction in the continuous reaction device, the probability of slow decomposition and deterioration of the propellane under illumination can be lowered, and the conversion rate of the reaction raw materials and the product yield are greatly increased.

The invention discloses health-care jujube yoghourt. The health-care jujube yoghourt consists of the following raw materials in parts by weight: 90-100 parts of pure milk, 10-20 parts of white sugar, 4-6 parts of jujube, 1-2 parts of cassia seeds, 1-2 parts of whey protein, 2-3 parts of grape leaves, 1-2 parts of trichosanthes kirilowii maxim leaves, 1-2 parts of medlar leaves, 1-2 parts of starches, 0.5-1 part of gelatin, 0.8-1 parts of sodium carboxymethylcellulose, 0.1-0.4 part of mixing strain and 0.001-0.002 part of vitamin C. The healthcare jujube yoghourt disclosed by the invention is safe, simple and rapid in process, free from pollution, low in requirement on production environment, low in possibilities of microorganism pollution and degeneration of products, and the jujube yoghourt with jujube pulp is high in medicinal value, abundant in nutrient substances, easy to absorb by a human body, and easy to accept by market and customers; and the jujube yoghourt containing the coconut milk improves the homogenization by two times, enhances the stability of the products, improves the appearance quality of conventional yoghourt, and enhances the absorptivity of the human body to the nutrient substances.

The invention relates to an intelligent sealing device based on biological detection and a working method thereof. The intelligent sealing device based on biological detection comprises a sealing unit, and further comprises a microbiological detection device, a sterilization device and a processor, wherein the sealing unit comprises an operating platform and a hot sealing device; the hot sealing device comprises a first hot sealing strip and a second hot sealing strip; heating wires and temperature control devices are arranged in the first hot sealing strip and the second hot sealing strip, and the temperature control devices are connected with the processor; the microbiological detection device is arranged on one side of the first hot sealing strip, connected with the processor and used for detecting the number of microorganisms in objects to be sealed, and the microbiological detection device outputs the detected microorganism value to the processor; and the sterilization device is connected with the processor, the sterilization device and the microbiological detection device are arranged on the same side of the first hot sealing strip, the sterilization device is used for sterilizing the objects to be sealed, the processor outputs an opening signal to the sterilization device, and the sterilization device is opened.

The invention discloses heat-clearing fire-purging yoghourt and a preparation method thereof. The heat-clearing fire-purging yoghourt comprises, by weight, 100 to 120 parts of whole fresh milk, 10 to 20 parts of white sugar, 1 to 2 parts of lophatherum gracile extract, 0.5 to 1 part of honeysuckle flower extract, 0.5 to 1 part of scutellaria baicalensis extract, 30 to 50 parts of pear pulp, 40 to 50 parts of aloe pulp and 0.02 to 0.04 parts of LABS probiotics. The preparation method has simple, fast and safe processes, no pollution and low production environment requirements, and reduces microbial pollution and deterioration of the product. Through utilization of the lophatherum gracile extract, the honeysuckle flower extract and the scutellaria baicalensis extract, the heat-clearing fire-purging yoghourt has effects of clearing heat and purging fire. Through utilization of the pear pulp and the aloe pulp, a taste of the heat-clearing fire-purging yoghourt can be adjusted. Aloe has beauty treatment effects. Therefore, the heat-clearing fire-purging yoghourt can be easily accepted by consumers.

The invention relates to a disposable venous nutrition transfusion bag film. The film comprises a heat sealing layer A, a structure layer B, a bonding layer C and an external layer D which are sequentially arranged from inside to outside, the material of the heat sealing layer A is ethylene-vinyl acetate (EVA), the material of the structure layer B is mixed resin composed of polyethylene (PE) and ethylene-octylene copolymer (POE), the material of the bonding layer C is maleic anhydride (MAH) modified ethylene-octylene copolymer (POE), and the material of the external layer D is mixed resin composed of polyester elastomer (TPEE), polyamide (PA) and a compatilizer. The disposable venous nutrition transfusion bag film can be disinfected through gamma-ray irradiation disinfection or 115-125DEG C high temperature steam disinfection, and has the advantages of no need of a plasticizer, few migration precipitates, excellent medicine compatibility, low making cost, high barrier performances, good protection on treatment and nutrition transfusion, reduction of the deterioration probability of medicines, and guaranteeing of patients' medicine taking safety.

The invention discloses an intelligent preservation box for cold chain distribution. The intelligent preservation box comprises a first box body, a filter screen is fixedly installed in the first box body, a second box body is arranged on the filter screen, a limiting assembly is fixedly installed on the inner wall of the first box body, one side of the limiting assembly is attached to one side of the second box body, a first groove is formed in the inner wall of the first box body, a second groove is formed in the inner wall of the first groove, an ice bag is arranged in the second groove, and a permeable plate is rotationally installed in the first groove. According to the intelligent preservation box, contact between frozen objects and defrosting water is reduced, then the defrosting speed of the frozen objects is reduced, the preservation effect is improved to a certain degree, the possibility of deterioration is reduced, the fixing effect on the preservation box in the distribution process is enhanced, collision between the frozen objects and the inner wall of the preservation box is reduced, the frozen objects are more complete in the distribution process, and the preservation effect on the frozen objects is further improved to a certain degree.

The invention discloses a cover sealing assembly applied to a container and the container. The cover sealing assembly is mounted on a container body and comprises a middle cover, an upper cover and aliquid guide pipe. The middle cover is connected to an opening of the container body. The upper cover is detachably connected to the middle cover. After the upper cover is detached and separated fromthe middle cover, one end of the liquid guide pipe can be connected to the middle cover, and the upper cover is detachably connected to the other end of the liquid guide pipe. The container body is compressible and deformable, the middle cover is arranged at the opening of the container body, the upper cover achieving the sealing function is detachably connected to the middle cover, and the container body is suitable for storing liquid which cannot be in contact with air for a long time. When the cover sealing assembly needs to be used, the upper cover is firstly taken down from the middle cover, then one end of the liquid guide pipe is in sealed connection to the middle cover, liquid can be squeezed out from the container body by squeezing the container body, and the liquid flows towardsthe place where the liquid is needed along the liquid guide pipe; and after the liquid is used, the other end of the liquid guide pipe is covered with the upper cover, air is prevented from entering,and the probability that the liquid goes bad is reduced.

The invention discloses a rotary feeding mechanism. The mechanism comprises a rotary barrel, wherein a supporting column is fixedly installed at the lower end of the rotary barrel, an anti-skid base is fixedly installed at the lower end of the supporting column, a top cover is fixedly installed at the upper end of the rotary barrel, a filter cotton net is fixedly installed on the right side of the upper end of the top cover, a bearing is fixedly installed on the left side of the upper end of the top cover, an inner rotating cylinder is fixedly installed on the inner side of the bearing, the upper end of the inner rotating cylinder fixedly communicates with a feeding channel, and a feeding hopper is fixedly installed at the upper end of the feeding channel. According to the rotary feeding mechanism, all internal parts cooperate with one another, so that the overall working efficiency of the mechanism is effectively improved, the mechanism is more reasonable, the mechanism can control rotary feeding of materials, the entering materials are limited step by step, the phenomenon that the mechanism is blocked and operation of the mechanism is affected due to the fact that a large number of materials enter the mechanism at the same time is avoided, an operation effect of the mechanism is improved, and the mechanism is better in use effect and safer.

The invention discloses fully automatic multiple adjustable fluid filler injecting production equipment and a filler injecting technology. The filler injecting production equipment comprises a longitudinal queue material adjusting device, a horizontal queue material adjusting device and a filler injecting machine from an input end to an output end, wherein the longitudinal queue material adjustingdevice comprises a dividing device for dividing fed foods into longitudinal queues to be conveyed, the horizontal queue material adjusting device comprises a dividing device for dividing the foods ineach longitudinal queue to enable the foods to be aligned horizontally with the foods in the adjacent longitudinal queues, the filler injecting machine comprises a conveying table of the filler injecting machine, a food filler pumping device, and a food filler injecting device, the conveying table is used for conveying foods to be processed, the food filler pumping device pumps out a filler in the hopper and supplies the filler to the food filler injecting device, and the food filler injecting device is arranged on the conveying table for filler injection on the foods; and the food filler injecting device is provided with a movable driving device for driving the food filler injecting device to simultaneously move along with the conveyer belt of the conveying table while performing fillerinjecting. Full automation is adopted for filler injection on the conveyed foods, so that the working precision and the working efficiency can be improved.

The invention discloses a fresh-keeping freezer for frozen meat. The fresh-keeping freezer comprises a freezer body and an outer handle, and a thermal insulation layer is installed in the freezer body; an observation frame is arranged in the thermal insulation layer, and an observation window is fixed in the observation frame; a convection fan is installed on the left side of the observation window, and a first supporting frame is fixed to the bottom end of the freezer body; a second supporting frame is arranged on the right side of the first supporting frame, and a transition bin is arrangedat the top end of the second supporting frame; a longitudinal sealing strip is installed on the left side of the transition bin, and a transition box is arranged in the transition bin; an outer door is installed on the outer surface of the transition box, and an inner door is arranged on the right side of the outer door; and an outer handle is mounted on the outer surface of the outer door. The fresh-keeping freezer for the frozen meat is provided with the observation frame and the observation window, and can facilitate observation of the frozen meat in the freezer body; and a user can conveniently adjust the temperature at any time, and the freezer is more user-friendly.

The invention discloses a device and method for automatically mixing and refilling automotive windshield cleaning fluid. Two ends of a water pump are connected in parallel with a liquid return pipe; afirst extraction solenoid valve is arranged on the liquid return pipe; a liquid drain pipe is led out between a liquid return pipe communicating end on a filling pipe and the water pump; a second extraction solenoid valve is arranged on the liquid drain pipe; a first filling solenoid valve is arranged between a liquid return pipe communicating end on an output pipeline and a mixed finished product barrel; a second filling solenoid valve is arranged between a liquid return pipe communicating end on a filling pipe and a liquid drain pipe lead-out end. With the adoption of the liquid return pipeand the liquid drain pipe and in combination with opening fit of four solenoid valves, old cleaning fluid is pumped back and then new fluid is filled, the automotive windshield cleaning fluid in an automotive windscreen wiper is completely replaced, secondary pollution caused to the new filled automotive windshield cleaning fluid is avoided, the probability of deterioration of concentrated automotive windshield cleaning products occurring during use is reduced, the running safety is improved, and the device is convenient to use and cost-saving.