102results about How to "Reduce the temperature difference between day and night" patented technology

The invention provides a phase-change energy-storage solar greenhouse architectural structure system which can heat a phase-change energy-storage material by virtue of solar energy in the day and allow the phase-change energy-storage material to release heat at night; and the structure system meets the need of agricultural products in winter and the need of people in a working condition. The phase-change energy-storage solar greenhouse architectural structure system comprises a foundation pier, a frozen-insolating laminated plate, a slope crest truss, upright frames at two sides and a rear upright frame or a phase-change energy-storage rear upright plate and/or a phase-change energy-storage rear wallboard and a phase-change energy-storage side wallboard and a self-waterproofing phase-change energy-storage rear top plate, an external-layer fixed top membrane and an internal-layer retractable insulation membrane. In the invention, the structure system is assembled into a phase-change energy-storage solar greenhouse at a construction site.

The invention provides railway structure concrete protecting coating and a preparation method and a using method thereof. The protecting coating comprises a sealing primer layer, a polyurethane middlepaint layer and a fluorocarbon finish paint layer. The protecting coating has excellent adhesion; when the protecting coating is used for protecting a railway concrete bridge, the protecting coatingcan avoid occurrence of a situation that the railway concrete bridge cracks first and then is repaired in a special environmental region, significantly improves the durability of the railway concretebridge, prolongs the service life the railway concrete bridge, can achieve an excellent concrete protecting effect in the case of relatively thin concrete bridge coating thickness, and is convenient and fast to use; the protecting coating can also be used for protecting the surface of a ballastless track structure, and when the protecting coating is applied to the surface of a concrete track plateunder a steel rail or the surface of a ballast bed plate, the temperature difference between day and night due to sunlight irradiation can be reduced, the warpage amount of the track plate can be reduced, the open joints of plate corners or upwarp of the ballast bed plate or other damages can be reduced or even eliminated, and the effect of improving the durability of a ballastless track high-speed railway with a strict requirement on the smoothness is relatively good.

The invention relates to a method that the photosynthesis of plants extensively grew in desert or drought areas is utilized to adjust the carbon dioxide concentration in air and to reduce the greenhouse effect; the invention further relates to an optical, mechanical and electronic integration automatic control protective device. The device of the invention comprises two parts: a sun-shading protective system arranged above the desert with a main function of shading sunshine and an ecosystem arranged at the surface of the desert and taking plants as the main sector, The cooperation of the two parts can achieve the purposes of thoroughly controlling desert, adjusting the carbon dioxide concentration in air and reducing the greenhouse effect.

The invention discloses a deer feces peat compound organic nutritive block for raising ginseng seedlings. Deer feces rich in organic substances and multiple nutrient components and peat are efficiently compounded through a biodegradable starch-based strong water absorption material to develop the environment-friendly nutritive block special for raising the ginseng seedlings, wherein the nutritive block integrates the functions of matrix, nutrient, water retention and soil moisture conservation, disease control, acid and alkali adjustment, container and the like. The method for preparing the nutritive block is applied for the first time in ginseng cultivation, and has obvious effects of shortening the ginseng germinating time and improving the ginseng germinating rate. The novel ginseng cultivation technology for raising the seedlings by using the nutritive block is more flexible, and can save a large amount of forest land and manpower resource, shorten the ginseng cultivation period and prolong the ginseng growth period.

The invention relates to a seaweed biological dry land film. The film is prepared by adopting a method comprising the following steps: dissolving alginate with water, degassing, laying the film and drying to obtain an alginate semi-dry film; immersing the semi-dry film in a mixed aqueous solution containing organic calcium, phosphate and boric acid to carry out a crosslinking reaction; washing; and drying to obtain the seaweed biological dry land film. According to the film, the natural marine biomaterial algin is used as a main raw material to prepare the environment-friendly weakly acid sodium calcium type fully degradable seaweed biological dry land film, wherein the water absorption rate is less than 30 percent, the biodegradation rate is greater than 99 percent, and the transmittance is greater than 97.5 percent. According to the film, the defects of a plastic land film and a degradable plastic land film are overcome, and the technical bottleneck for preparation of the land film from the algin serving as the raw material is also overcome.

The invention discloses a soil structure for turning the desert into an oasis and a method of turning the desert into an energy base. The soil structure comprises an underground drip network, wind power equipment, and a solar generation film and is characterized in that the underground drip network is laid on the surface sand layer on the sand plane, the wind power equipment is installed on the sand plane, the solar generation film is laid on a slant I, and a moisturizing insulation film is laid on the sand plane, a slant II and a bottom plane, water-storing wind-cold-proof plants are grown on the sand plane, the slant II and the bottom plane, the roots of the plants are wrapped, and accordingly the soil structure for turning the desert into the oasis is formed. The soil structure has the advantages that desertification can be changed thoroughly, and the desert is turned into the oasis.

The heat insulating mulching has ethylene-vinyl acetate copolymer resin carrier and is prepared through preparing heat insulating agglomerate with ethylene-vinyl acetate copolymer 40-60 %, inorganic heat insulating agent 20-30 %, solubilizer 10-15 % and dripping agent 10-15 % and through mixing and extruding in a double screw extruder; mixing ethylene-vinyl acetate copolymer resin 10-25 %, linear low density polyethylene 60-80 % and the heat insulating agglomerate 10-15 % and processing with a blow molding machine. The present invention has excellent heat insulating performance and is favorable to crop root system growth and high crop yield and quality.

The invention provides a neutral white pigment preparation used for ancient and famous trees and preparation thereof, which can solve the problem of soil acidity-alkalinity destroy in the current white pigment preparation. The method for preparing the white pigment preparation comprises the following steps: adding polyvinyl alcohol 1788 powder, white pigment powder, a magnesium aluminosilicate suspension auxiliary agent and 80% of water in a stirring cylinder, stirring by a mixer to an uniform state; adding hollow glass bead powder, stirring to the uniform state; cleaning the wall of the stirring cylinder by the rest of water and a rotating shaft, and using the mixer for stirring to the uniform state. The white pigment preparation has the beneficial effect that insect disease of tree, sunburn and frostbite can be prevented, and soil environment after tree brushing can not be influenced.

The invention discloses a phase-change insulating flexible facing material and a preparation method thereof. A specific embodiment is as follows: the phase-change insulating flexible facing material is prepared by the preparation method comprising the following steps: coating mud powder, phase change microcapsules, an adhesive and a cross-linking agent which serve as main raw materials on a template, and baking and molding under gradient temperature, wherein the raw materials include the following components in parts by mass: 30-50% of mud powder, 5-10% of phase change microcapsules, 15-30% of adhesive, 3-6% of organic bentonite, 0.5-1% of emulsifier, 1-5% of auxiliaries, 1-5% of cross-linking agent and 10-20% of water. Compared to an existing flexible facing material, the phase-change insulating flexible facing material disclosed by the invention has the following advantages that on the premise of preventing advantages of an existing flexible high polymer facing material from losing, functions of insulating and decorating are integrated, a construction process is simplified, an application scope of the material is widened and a broad market prospect is guaranteed; the facing material disclosed by the invention does not require high temperature sintering and is beneficial for energy conservation and emission reduction; in addition, the material, in production and use, is free from release of toxic gas, and is harmless to environment and human health.

The invention provides a water-based reflective thermal insulation coating and a preparation method and application thereof. The water-based reflective thermal insulation coating is prepared from, byweight, 30-45 parts of fluorosilicone emulsion, 20-35 parts of silicone acrylic emulsion, 9-18 parts of filler, 15-25 parts of nano titanium dioxide, 0.2-3 part of water-based floating aluminum paste,0.2-3 part of water-based non-floating aluminum paste, 0.9-4.5 part of coalescing agent, and 0.1-0.8 part of a bacteriostatic agent.

The invention discloses a wheat straw biochar fertilizer for sandy soil and a preparation method thereof. The wheat straw biochar fertilizer is prepared from the following raw materials in part by weight: 22-26 parts of tangerine seed powder, 3-4 parts of boric acid, 4-6 parts of sodium bicarbonate, 33-37 parts of bean cake powder, 35-39 parts of crushed bone meal, 12-16 parts of maple syrup, 2-3 parts of silicon sulfate, 110-130 parts of fresh enteromorpha, 5-6 parts of composite microbial agent, 245-255 parts of wheat straw, 26-30 parts of fresh urine, and a proper amount of water. The wheat straw biochar fertilizer employs organic matters as main raw materials, and needs of sandy soil plantation are met in cooperation with high adsorptivity of the biochar; the wheat straw biochar fertilizer has the advantages of good fertilizer conservation and water retention capabilities, the soil temperature is buffered, day and night temperature difference is reduced, and later nutrient demands of crops are ensured; in addition, by means of good permeability of sandy soil, aerobic activities of microbes added in the fertilizer increase, decomposition of organic matters in the fertilizer can be promoted, therefore the utilization rate of the fertilizer is raised and the soil fertility is raised.

The invention discloses a method for improving the survival rate of young trees in the desert. The method comprises the following steps: preparing a soaking mud liquid, that is, the cohesive soil or heavy clay is crushed and sieved (5 mm), the crushed and sieved cohesive soil or heavy clay is added in clean water to be evenly stirred, and the solid-to-liquid ratio is 1:2; a water-retaining agent of 10-30 g is added in every 1000 ml of solution for sufficient stirring, and according to the use area, the lower limit 10 g is taken when the annual mean precipitation is 400 mm above, the upper limit 30 g is taken when the annual mean precipitation is 200 mm below, and the medium value is taken when the annual mean precipitation is 200-400 mm; a woven biological protective disc is soaked in the mud liquid for 24 hours, and dried in the shade for 48 hours; after the tree seedlings are planted, the sand soil around the roots of the tree seedlings is dug for 2-4 cm to take the biological protective disc out, the stems of the tree seedlings are sleeved from notches, and the quick evaporation of soil moisture due to the sustained wind can be effectively inhibited; and meanwhile, the soil temperature of the root layer is increased.

The invention discloses a heat insulation and fertilizer conservation liquid fertilizer. The liquid fertilizer is prepared from the following raw materials, by weight, 38-42 parts of rape straw carbon powder, 6-8 parts of whey powder, 5-7 parts of potassium pyrophosphate, 9-13 parts of triple superphosphate, 55-65 parts of rice bran, 40-46 parts of vinegar residues, 90-110 parts of waste livestock and poultry feathers, 4-5 parts of copper sulphate, 6-7 parts of ferrous sulphate, 5-6 parts of GM microbial preparations and a proper amount of water. Through addition of rice bran, straw carbon powder, vinegar residues and the like, the organic colloid content in the fertilizer is raised, the adsorption surface of soil can be increased greatly after long-term usage, soil particles are cemented, a stable granule structure is formed, the effects of soil on water retention, fertilizer conservation, ventilation and the like are raised, crop root growth is enhanced, the temperature buffer capability of soil is raised through a lot of organic humus, day and night temperature difference is lowered, and the crop growth environment is optimized.

A salt-resistant water-preserving agent for the protecting forest on beach is prepared through preparing sodium polyacrylate from acrylic acid, sodium hydroxide, cross-lining agent and trigger, surface modifying by RE material, and mixing with efficient compound fertilizer and slow-releasing agent. Its advantages are high water-preserving power, high looseness, and high durability.

The invention discloses a preparation method of a phase change material with palm oil as a raw material. According to the invention, palm oil is adopted as a raw material, and methanol is added; after two transesterification reactions, refined methyl ester is obtained; the refined methyl ester is separated, such that saturated fatty acid methyl ester is obtained; the saturated fatty acid methyl ester is mixed with hexadecanol according to a mass ratio of 10:1-2.5:1, such that a binary composite phase change material with phase change temperature of 22-27 DEG C and phase change latent heat of 160-190J/g is obtained. According to the invention, the prepared binary phase change material is subjected to morphological curing either by encapsulating the material with microcapsules or by compounding the material with a porous medium substrate. The material can be combined with a building material to form a composite building envelop structure with an energy-saving property. Therefore, indoor temperature difference between day and night can be effectively reduced, thermal comfort can be improved, and energy consumption can be reduced.

The invention discloses a method of controlling the temperature and the humidity of a rice seedling greenhouse. The method of controlling the temperature and the humidity of rice young seedlings disclosed by the invention is scientific and reasonable; a used technical means is suitable for the growth requirement of the rice young seedlings; a large amount of organic humus are added into a heat preservation agent, so that the buffering capacity of soil to temperature can be improved; the diurnal temperature difference is reduced; a plurality of raw materials added into a moisture preserving agent have high film-forming properties and high moisture preserving properties; after the moisture preserving agent is sprayed on leaf surfaces, film surfaces are generated to reduce the loss of water; meanwhile, the moisture preserving agent contains nutrients in a chelating state, and the nutrients are extremely easily absorbed by the leaf surfaces, and have an extremely strong assisting effect in accelerating the development of young seedlings; an active effect on increasing the yield of rice is achieved.

The invention discloses a thermal-insulation wheat straw biocarbon fertilizer and a preparation method thereof. The fertilizer is composed of the following raw materials in parts by weight: 30 to 40 parts of aquatic product leftovers, 12 to 16 parts of palygorskite, 6 to 8 parts of manganese fulvate, 5 to 7 parts of triple superphosphate, 4 to 5 parts of tartaric acid powder, 4 to 8 parts of calcium ammonium nitrate, 26 to 34 parts of rice bran, 120 to 140 parts of fresh enteromorpha, 5 to 6 parts of composite microbial inoculant, 230 to 240 parts of wheat straw, 29 to 31 parts of fresh urine, and a proper amount of water. The provided biocarbon fertilizer has rich and balanced nutrients; the waste resources such as wheat straw, aquatic product leftovers, and the like are recycled and reused; the added tartaric acid powder can improve the performance of fertilizer on chelating nutrients, at the same time, and the biocarbon fertilizer particle has a dark color, the color of topsoil becomes darker and darker as the content of biocarbon fertilizer increases, so the soil can absorb the thermal energy of UV rays and visible light, the temperature of topsoil is increased, and the temperature of the cultivation layer can be well maintained.

The invention discloses a magnesium sulfate-containing fertilizer capable of increasing the survival rate of cuttings. The fertilizer comprises the following raw materials in parts by weight: 10 to 15 parts of ammonium nitrate, 15 to 20 parts of urea, 15 to 20 parts of potassium phosphate, 4 to 6 parts of calcium magnesium phosphate, 0.1 to 0.2 part of magnesium sulfate, 0.2 to 0.4 part of potassium borate, 0.2 to 0.4 part of calcium chloride, 0.2 to 0.3 part of ferric chloride, 0.1 to 0.3 part of zinc chloride, 0.1 to 0.2 part of manganese sulfate, 0.2 to 0.4 part of sodium molybdate, 50 to 70 parts of a heat-insulating material and 0.1 to 0.2 part of aspartic acid. Nutrient elements and active substances suitable for rooting of the cuttings are provided through mutual cooperation of the materials; soil is loosened, water is retained and the fertilizer is maintained, so that the root system is tightly connected with the soil and the microbial flora of the soil is improved; the soil temperature is maintained, so that the soil temperature is suitable for rooting of the cuttings; under the action of the asparaginic acid, the rooting promoting property is greatly improved and the survival rate of the cuttings is increased.