44results about How to "Antifreeze effect" patented technology

The invention discloses a prevention and treatment method of the freezing damage of loquat flower and fruit, which comprises the following step of: spraying a CaCl2 (calcium chloride) solution with the concentration of 1-3g / L to a crown of a loquat tree 3-5 days before the coming of frosty weather with the daily minimum temperature of below zero DEG C or the daily highest relative humidity of larger than or equal to 95% according to the weather forecast during the during the period of blossom and fructify of the loquat tree in autumn and winter. When the method is adopted, the influence on loquat due to the freezing damage can be effectively reduced; loss is reduced; the period of growth and recovery of the loquat after the freezing damage is shortened; the fruit quality of the loquat is improved; the yield is increased; the method is beneficial for early maturing; and the economic benefit of peasants is increased.

The invention discloses an all-year ventilation treatment air conditioning unit for a dry-heat cold climate region. The all-year ventilation treatment air conditioning unit comprises a ventilation airduct, an air return air duct and a heat recovery device, wherein the ventilation air duct is sequentially provided with a ventilation opening, a ventilation filtering section, a preheating section, asurface cooling section, a ventilation direct evaporation section, a heating section and an air supply fan section, and the air return air duct is sequentially provided with a return air inlet, an air return filter section, a ventilation direct evaporation section and an exhaust fan section; the heat recovery device is arranged between the preheating section and the surface cooling section in theventilation air duct, and the heat recovery device is arranged between the direct evaporation and the exhaust fan section in the air return air duct. The invention further discloses an application method of the all-year ventilation treatment air conditioning unit for the dry-heat cold and cold climate region. According to the all-year ventilation treatment air conditioning unit and for the dry-heat cold and cold climate region and application method thereof, a set of ventilation treatment machine air conditioning unit can be shared in winter and summer, the use is safe and reliable in all-year, the all-year ventilation energy consumption is less, the operation is economical and environment-friendly, and the quality of indoor air in winter is fully guaranteed.

The invention discloses a valve with an anti-freezing function, and relates to the technical field of valve devices. The valve aims to improve the effect of automatic heating control. The valve specifically comprises a valve body installed on a conveying pipe, wherein an electric heating wire assembly is installed on the outer wall of the valve body in an embedded mode, the electric heating wire assembly comprises a first electric heating wire installed on the surface of the valve body and a second electric heating wire installed at the rotating position of a valve rod in the valve body, a control mechanism for controlling the first electric heating wire and the second electric heating wire to work is installed on the conveying pipe, and two limiting rings are integrally arranged on the circumferential outer wall of the conveying pipe. According to the valve, an air bag, a conductive strip, a conductive sheet and other structures are arranged, the capacity of thermal expansion and coldcontraction of the air bag can be utilized, so that the first electric heating wire and the second electric heating wire work to heat the valve body, moreover, due to the fact that the expansion andcontraction process of the air bag is relatively slow, the phenomenon that the conductive strip and the conductive sheet are repeatedly contacted and separated is avoided, and the working stability ofthe first electric heating wire and the second electric heating wire is guaranteed.

The invention discloses frost resistant emulsified bitumen which is prepared from a composite emulsifier, and a preparation method thereof. The emulsified bitumen comprises bitumen, a cationic emulsifier, an anionic emulsifier, an amphoteric emulsifier, a nonionic emulsifier, an alcohol and water. The alcohol comprises one or more selected from ethanol, propanol, isopropanol and tert butyl alcohol. With the present invention, a combination of the composite emulsifier and the low molecular weight fatty alcohol is adopted for the emulsified bitumen while diluents such as diesel oil or kerosene and the like are not added, such that time of water evaporation is shortened, a hardening rate of mixture is increased, frost resistance is improved (the emulsified bitumen cannot be frozen at a temperature of -5 to -25 DEG C), original excellent properties such as bonding performance of the bitumen and the like are maintained, and shrinkage and cracking of the mixture due to a low temperature in winner or surface loosening of the mixture due to freeze thawing is avoided. The frost resistant emulsified frost resistant can be used for road curing and road maintenance.

The invention discloses a method for preparing quick-freeing concentrated fish soup using ictalurus punctatus trunk bones. The method is as follows: slicing ictalurus punctatus, removing the fish head, fish tail and fish fins from the fish skeleton to obtain a trunk bone about 15 cm in length, washing, draining off, bagging, quick freezing and storing in a freezing manner for later use; then placing the trunk bone in a 0-4 DEG C refrigerator for unfreezing, frying with oil slightly, draining off oil, adding a certain proportion of water, cooking with big fire until boiling, stewing with medium fire, and filtering; taking and cooking the filtrate with soft fire to a certain concentration, adding salt, wei jia xian, monosodium glutamate and cassava modified starch, mixing uniformly, cooling, quick freezing, and storing in a freezing manner. The quick-freeing concentrated fish soup prepared using the method provided by the invention has the advantages of being instant, fresh, delicious, nutritive and convenient to eat, the comprehensive utilization value of the ictalurus punctatus is effectively improved, industrial production is facilitated.

The invention provides a cement mineralizer and a preparation method thereof, and relates to the technical field of cement preparation. The cement mineralizer comprises the following ingredients in parts by weight: 15 to 25 parts of triethanolamine, 10 to 15 parts of diethanolisohydramine, 5 to 15 parts of triisopropanolamine, 2 to 5 parts of an auxiliary agent, 2 to 5 parts of a stabilizer, 1 to 3 parts of lignin calcium sulfate, 1 to 3 parts of molasses, 2 to 5 parts of urea, 5 to 20 parts of water and 60 to 80 parts of industrial waste residues. The preparation method comprises the following steps: weighing corresponding parts by weight of raw materials, mixing triethanolamine, diethanolisohydramine, triisopropanolamine, the auxiliary agent, the stabilizer, lignin calcium sulfate, molasses, urea, polyol and water, and uniformly stirring to obtain a mixture; and adding the industrial waste residues and limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished product. The prepared cement mineralizer can uniformly distribute cement particles and improve the early and later strength of cement.

The invention discloses a composite anti-freezing emulsified asphalt and a preparation method thereof. A formula of the emulsified asphalt comprises asphalt, a cationic surfactant, an anionic surfactant, a zwitterionic surfactant, alcohol, cellulose and water. The preparation method comprises steps of: preparing cellulose, alcohol and the zwitterionic surfactant into a paste at room temperature; and preparing the cationic surfactant into a liquid soap; and uniformly dispersing hot asphalt, the paste and liquid soap by colloid mill to obtain the anti-freezing emulsified asphalt. The emulsified asphalt not only has good freezing resistance, good long-term storage performance and small sieve residual amount, but also avoids irritant odor caused by heated volatile alcohols in the preparation of soap liquid through single usage of alcohol and production process of emulsified asphalt.

The invention discloses a preparation method of a hydrophilic anti-fog film with wear resistance and frost resistance. The method comprises the following steps of: (1) preparing a cellulose solution,a metal iron ion cross-linking agent and a polyacrylic acid solution with certain concentrations; and (2) mixing and oscillating a certain volume of the three solutions, spin-coating the three solutions on a cleaned glass sheet by using a spin coater, taking out the glass sheet after spin-coating is finished, and drying the glass sheet to obtain the glass with the anti-fog performance. According to the method, the hydrophilic anti-fog film with wear resistance and frost resistance is prepared by adopting a simple spin-coating method, and the method has the advantages of a simple process, easiness in operation, controllable reaction conditions, wide sources of raw materials and the like, does not pollute the environment, has an excellent anti-fog effect and good mechanical properties, and does not influence the light transmittance of the glass.

The intelligent water and fertilizer all-in-one machine comprises an outer barrel, and a feeding hopper and a water inlet pipe are installed on the two sides of the top of the outer barrel in a penetrating mode respectively; the device further comprises an irrigation pump, the irrigation pump is installed on the left side of the edge of the bottom of the outer barrel, a movable column is arranged in the installation column in a penetrating mode, the top of the installation column is sleeved with an inner barrel, and a guide ring is fixed to the outer side of the movable column through a transverse rod. And the recovery pump is installed on the right side of the edge of the bottom of the outer barrel, a heater is fixed to the inner wall of the evaporation box, and a vertical rod is installed at the center of the interior of the evaporation box through a bearing. According to the intelligent water and fertilizer all-in-one machine, water and fertilizer are uniformly mixed while being used through power of the irrigation pump, the trouble that water and fertilizer sediment needs to be treated is effectively avoided, energy is effectively saved, meanwhile, internal cleaning and water and fertilizer recycling are achieved through power of the recycling pump, efficient energy conservation and environment protection are achieved, and the situation that the underground environment is affected by water and fertilizer discharge is avoided.

The invention belongs to the technical field of antifreezing agents for fruit trees and specifically relates to an environment-friendly antifreezing agent for the fruit trees and a preparation methodof the antifreezing agent. The invention provides the environment-friendly antifreezing agent for the fruit trees and the preparation method thereof, aiming to overcome defects in the prior art. According to the preparation method, algal polysaccharides and plant-sourced small-molecule polypeptide are prepared into a nano-like lipidosome solution, prohexadione calcium is prepared into nano microcapsule dispersion liquid, and he environment-friendly anti-freezing agent for the fruit trees is formed through the nano-like lipidosome solution, the nano microcapsule dispersion liquid, glycerinum, vitamin E, sodium alginate, 50 wt% aqueous polyethyleneimine (PEI) solution and mannitol. The prepared antifreezing agent can achieve quick-acting and long-acting antifreezing effects, is applicable tomultiple economic crops, such as apple trees, tea, mulberries, strawberries, grapes and various flower and fruit seedlings, and has the antifreezing effect especially for flower buds, sprouts and leaves of the apple trees and the like.

The invention discloses bare concrete. The bare concrete is characterized by being prepared from, by weight, 5-10 parts of surface modified nano-boron fiber, 5-10 parts of kaolin, 10-15 parts of illite powder, 20-30 parts of gravel, 5-10 parts of vermiculite sand, 20-30 parts of silver sand, 40-50 parts of Portland cement, 1-5 parts of a compound additive and 20-30 parts of water. The compound additive comprises, by weight, 20-25 parts of a phosphate borate copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, 2-4 parts of porous magnesium silicate, 0.5-1 part of a defoaming agent, 0.8-1.5 parts of polyaminopropyl biguanide, 0.5-2 parts of hydroxypropyl cyclodextrin, 1-3 parts of an activator and 80-100 parts of water. The invention further discloses a preparation method of the bare concrete. The bare concrete is high in compressive strength, good in corrosion resistance, impermeability and crack resistance and excellent in comprehensive performance, and production and application are safe and environmentally friendly.

The invention discloses emulsified asphalt and a preparation method thereof. The emulsified asphalt comprises asphalts, cationic emulsifiers, zwitterionic emulsifiers, a non-ionic emulsifier, alcohols and water, wherein the alcohols are one or more of ethanol, propanol, isopropanol and tert butyl alcohol. The emulsified asphalt has the following advantages: through synergistic action of the compound emulsifier and lower fatty alcohols, without adding such diluents as diesel or kerosene, the emulsified asphalt can be used for shortening the time of moisture volatilization, speeding up mixture hardening and improving the frost resistance, is not frozen at minus 5-minus 25 DEG C, maintains such excellent properties of the original asphalts as caking property and can be used for avoiding low-temperature shrinkage crack or freeze thawing and looseness of a mixture in winter. The emulsified asphalt is used for highway maintenance and repair.

The invention discloses an intelligent electromagnetic flow sensor, and relates to the technical field of electromagnetic flow sensors. The intelligent electromagnetic flow sensor comprises a measuring tube, a heating box, excitation coils, a connecting tube and a converter; the heating box is fixedly installed at the bottom of the measuring tube, and the two excitation coils are fixedly installedat the top and the bottom of the measuring tube respectively and can generate a constant magnetic field on the cross section of the measuring tube; an induction electrode is further fixedly installedon the measuring pipe and can induct charged particles in fluid, an induction electrode is connected with the converter through the connecting tube, the converter is fixedly installed on the measuring tube through the connecting tube, and a high-performance microprocessor is adopted in the converter. The intelligent electromagnetic flow sensor is reasonable in structure and easy to use and has agood anti-freezing effect; The intelligent electromagnetic flow sensor has a basic filtering effect, can be flexibly taken out to be cleaned after being used for a period of time, the multi-functionaldisc has an inner wall cleaning function, and the sensor is diversified in function and high in economic value.

The invention provides a production process of a low temperature resistant frozen pastry. The production process comprises the following steps that 1, sticky rice is soaked with water for 1 day to 2 days, moisture is filtered out, and the soaked sticky rice is taken out for use; 2, the sticky rice treated in the first step is placed in a container, water is added, the constant temperature ranging from 85 DEG C to 89 DEG C is maintained, stirring is conducted sufficiently for 20 min to 30 min, the treated sticky rice is moved to a water mill, slurry is ground to be paste, and slurry is obtained; 3, xylitol and white soft sugar of which the mass ratio is 1:1 and the slurry treated in the second step by weight are stirred, mixed, heated and cooked, pastry main materials, salad oil and freeze-dried powder are added in sequence and fully stirred till the materials are slimy, and the materials are taken out of a pot and cooled to room temperature, wherein the water content is controlled to range from 2% to 3%. According to the production process of the low temperature resistant frozen pastry, the freeze-dried powder added to the raw materials has an anti-freezing effect, the anti-freezing effect is further achieved by reducing the water content of formed pastry, the mouthfeel is not affected, and the whole production process is simple and can be further applied and popularized.

The invention belongs to the technical field of antifreezing agents for fruit trees and specifically relates to an environment-friendly antifreezing agent for the fruit trees and a preparation methodof the antifreezing agent. The invention provides the environment-friendly antifreezing agent for the fruit trees and the preparation method thereof, aiming to overcome defects in the prior art. According to the preparation method, algal polysaccharides and plant-sourced small-molecule polypeptide are prepared into a nano-like lipidosome solution, prohexadione calcium is prepared into nano microcapsule dispersion liquid, and he environment-friendly anti-freezing agent for the fruit trees is formed through the nano-like lipidosome solution, the nano microcapsule dispersion liquid, glycerinum, vitamin E, sodium alginate, 50 wt% aqueous polyethyleneimine (PEI) solution and mannitol. The prepared antifreezing agent can achieve quick-acting and long-acting antifreezing effects, is applicable tomultiple economic crops, such as apple trees, tea, mulberries, strawberries, grapes and various flower and fruit seedlings, and has the antifreezing effect especially for flower buds, sprouts and leaves of the apple trees and the like.

The invention discloses a municipal flower box lamp which comprises a light box frame, a first isolation plate and a second isolation plate are fixedly connected between the inner bottom walls, closeto one side, of the lamp box frame, a light bar space is formed between the first isolation plate and the second isolation plate; the light bar space is arranged by adopting a matched LED light bar; apressing plate is arranged at the top of the light bar space, the two sides of the pressing plate, the first isolation plate and the second isolation plate are arranged in a Z-shaped mode, a pressingbase is arranged at the bottom of the pressing plate, the pressing base is arranged in a U shape, and a plurality of adjusting bolts are connected to the inner bottom wall of the pressing plate in athreaded and penetrating mode. According to the invention, the space of the light bar is sealed by pouring glue; external water is effectively prevented from entering the lamp strip space to contaminate the LED lamp strip, and the service life of the flower box lamp is effectively prevented from being affected; in addition, the LED light bar is installed on one side of the interior of the light box frame and decorated in a side light-emitting mode, so that the two ends of emitted light are consistent, and the attractiveness of a flower box is guaranteed.

The invention discloses a fair-faced concrete, which is characterized in that it is made of the following raw materials in parts by weight: 5-10 parts of surface-modified nano-boron fibers, 5-10 parts of kaolin, 10-15 parts of illite powder, and 20 parts of gravel ‑30 parts, 5‑10 parts of vermiculite sand, 20‑30 parts of fine sand, 40‑50 parts of Portland cement, 1‑5 parts of composite additives, 20‑30 parts of water. The composite additive includes the following components by weight: 20-25 parts of phosphate-based boric acid-based copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, porous silicon Magnesium acid 2-4 parts, defoamer 0.5-1 part, polyaminopropyl biguanide 0.8-1.5 parts, hydroxypropyl cyclodextrin 0.5-2 parts, activator 1-3 parts, water 80-100 parts. The invention also discloses a preparation method of the fair-faced concrete. The fair-faced concrete disclosed by the invention has high compressive strength, good corrosion resistance, impermeability and crack resistance, excellent comprehensive performance, and safe and environment-friendly production and use.

The invention discloses emulsified asphalt for roads and a preparation method thereof. The emulsified asphalt comprises asphalts, cationic emulsifiers, zwitterionic emulsifiers, alcohols and water, wherein the alcohols are one or more of ethanol, propanol, isopropanol and tert butyl alcohol. The emulsified asphalt has the following advantages: through synergistic action of the compound emulsifierand lower fatty alcohols, without adding such diluents as diesel or kerosene, the emulsified asphalt can be used for shortening the time of moisture volatilization, speeding up mixture hardening and improving the frost resistance, is not frozen at minus 5-minus 25 DEG C, maintains such excellent properties of the original asphalts as caking property and can be used for avoiding the low-temperature shrinkage crack or freeze thawing and looseness of a mixture in winter. The emulsified asphalt is used for highway maintenance and repair.

The invention belongs to the technical field of fire fighting equipment, in particular to an anti-freezing device for fire water for fire fighting, and provides the following scheme for solving the problems in the prior art: the anti-freezing device comprises a water tank body, wherein the outer wall of the bottom of the water tank body is fixedly connected with a base; the outer wall of the top of the water tank body is fixedly connected with a top shell; an air guide gap is reserved between the inner wall of the top of the top shell and the outer wall of the top of the water tank body; at least one evenly-distributed anti-freezing mechanism is arranged in the water tank body; each anti-freezing mechanism comprises a rotating shaft; the outer wall of the side face of each rotating shaft is fixedly connected with at least three evenly-distributed annular rings; each annular ring is of a wave annular rod-shaped structure; and the top end of each rotating shaft extends to the position above the top shell. According to the anti-freezing device, water in the water tank body can be in a flowing state, the anti-freezing effect is achieved, the temperature of the water is increased through heat transfer, so that the effect of preventing the water temperature from being reduced is achieved, freezing prevention can be conducted when external wind power is insufficient, and snow accumulation on the top of the top shell can be prevented.

The invention relates to the technical field of waterproof adhesives, in particular to a preparation method of a waterproof adhesive, which comprises the following components: epoxy resin, an epoxy resin curing agent, an emulsifier, a pH value regulator, an anti-mildew antibacterial agent, an anti-aging agent, an anti-freezing agent, a plasticizer, a defoaming agent and a dispersing agent. The nano-silver, nano-salt and graphene are adopted to achieve mildew-proof and antibacterial effects, the problem that mildew and bacterium breeding are prone to occurring in water or a humid environment after use is solved, use sanitation and bonding performance are effectively guaranteed, calcium lignosulphonate and ethylene glycol are matched to achieve an anti-freezing effect, the problem that use is affected by freezing in a low-temperature environment is avoided, the bentonite, the silica powder and the silica wax are matched to achieve a waterproof effect, and the overall waterproof performance is effectively improved.

The invention discloses an anti-freezing flat-plate solar collector, which belongs to the field of solar heat collectors and comprises a solar collector body, a heat collecting plate is arranged in the solar collector body, and a circulating water path is fixedly mounted at the upper end of the heat collecting plate. A plurality of circulating water pipes fixedly connected with the heat collecting plate are arranged on the circulating water way, a temperature sensing deformation protection mode can be formed through cooperation of a thermal insulation trigger strip, a wrapping type anti-freezing piece and a trigger guide groove, the effect of temperature sensing adjustment is effectively achieved while the heat collecting and exchanging effects of the solar heat collector body and the circulating water way are not affected, and the service life of the solar heat collector is prolonged. And when the temperature is reduced, the circulating water pipe can be rapidly wrapped for heat insulation, damage to the circulating water pipe caused by temperature difference is reduced, the service life of the solar heat collector body is effectively prolonged, the failure rate and the maintenance cost of the solar heat collector body are reduced, and then the environmental applicability of the solar heat collector body is effectively improved.

The invention provides a production process of freeze-resistant pastry, comprising the following steps: 1) soaking the glutinous rice in water for 1-2 days, filtering out the water, and taking it out for later use; 2) placing the glutinous rice treated in step 1) in a container and adding water Keep the temperature at 85-89°C, and fully stir for 20-30 minutes, then move to a water mill, grind the slurry to a slurry, and obtain the slurry; 3) mix xylitol and white cotton sugar in a mass ratio of 1:1 and Step 2) The treated slurry is stirred, mixed, heated and cooked in parts by weight, and then flour, red bean paste, mung bean paste pumpkin powder, green tea powder, bamboo leaf powder, salad oil, freeze-dried powder are added in sequence, and fully stirred until The material is sticky, take it out of the pan and cool to room temperature, and control the water content to 2-3%. Through the method provided by the invention, the freeze-dried powder added to the raw materials can effectively prevent freezing, the whole manufacturing process is simple, and can be further popularized and applied.

The invention relates to an electrical conductive composite material, in particular to a poly(3, 4-ethylenedioxythiophene) composite material and a preparation method and application thereof. The preparation method comprises the steps that sulfonated lignin and a 3, 4-ethylenedithiathiophene monomer are dissolved into water to be reacted with ammonium persulfate in a nitrogen atmosphere, and a poly(3, 4-ethylenedioxythiophene) / sulfonated lignin dispersion liquid is prepared; ammonium persulfate is added into crylic acid to be uniformly stirred, the poly(3, 4-ethylenedioxythiophene) / sulfonatedlignin dispersion liquid is added, after uniform dispersion, the mixture is heated in a water bath until gel is completely formed, the gel is put into glycerinum for soaking, and the obtained poly(3,4-ethylenedioxythiophene) composite material is taken out. According to the product, the composite material has the advantages of freezing resistance, adhesion, plasticity, biocompatibility and the like, and the composite material can be used for preparing a flexible electrode and used for detecting electrocardiogram, electromyogram and the like.