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128results about How to "Lower the temperature" patented technology

Solar energy powered air blowing and self-supplied water evaporating type cooling umbrella

The invention relates to a solar energy powered air blowing and self-supplied water evaporating type cooling umbrella, in particular to an umbrella which uses power generated by solar energy to drive an electric fan to force air to convect so as to accelerate the evaporation of a water absorption layer of an umbrella fabric to cool, which belongs to the field of articles for daily use. The umbrella comprises the umbrella fabric, a long rib, an umbrella support, an upper nest, a lower nest, an umbrella stem, a handle and the like and has a structural shape similar to that of the common umbrella, wherein the umbrella fabric is a water absorption layer-containing single-layer umbrella fabric, a composite umbrella fabric or a double-layer umbrella fabric and is cooled by water evaporation; the umbrella is also provided with an umbrella fabric water supply device; the top or the bottom of the umbrella is provided with a water storage bottle; both the umbrella stem and the umbrella handle are hollow; a cavity stores water; the water is gradually diffused around from the central part of the water absorption layer of the umbrella fabric to the whole umbrella fabric; the electric fan is arranged between two layers of umbrella fabrics or in a space enclosed by the umbrella fabric, the long rib and the umbrella support of the umbrella to speed up air convection; the umbrella is also provided with an electric fan power supply device, namely a power supply which consists of solar energy battery panels and is used for supplying power to the electric fan; and a power switch can be automatically controlled by unfolding or folding the umbrella.
Owner:朱嘉慧

Process for controlling and improving die steel continuous casting thick slab internal quality

ActiveCN103600049ALower the temperatureControl and improve segregationWater flowEngineering
The invention relates to a process for controlling and improving die steel continuous casting thick slab internal quality. By means of control of water amount of a vertical section, a bent section and a straightening section of a continuous casting machine, the water flow of the vertical section is controlled between 12m3 / h and 19m3 / h, the inner arc water flow of the bent section is between 18m3 / h and 26m3 / h, the outer arc water flow of the bent section is between 20m3 / h and 28m3 / h, the inner arc water flow of the straightening section ranges from 4m3 / h to 7m3 / h, and the outer arc water flow of the straightening section ranges from 6m3 / h to 10m3 / h. Through the control of the inner arc water flow and the outer arc water flow of the vertical section and the inner arc water flow and the outer arc water flow of the bent section, the return temperature in the casting blank cooling process is lowered, and cracks generated due to thermal stress are reduced or eliminated; the blank temperature at a straightening interval is controlled to range from 900 DEG C to 1100 DEG C, and cracks generated due to straightening force are reduced or eliminated; sector-shaped section pressing is carried out close to a condensation ending point so that pressing force can be transmitted to the casting blank center, and the problems of thick slab center segregation, center loosening and shrinkage are controlled and solved.
Owner:NANJING IRON & STEEL CO LTD

Processing method of protecting SOD of concentrated rosa roxburghii juice

The invention discloses a processing method of protecting SOD of concentrated rosa roxburghii juice. The processing method comprises the following steps of refrigerating rosa roxburghii fruits, performing low-temperature cleaning, performing low-temperature oxygen-separation breaking and squeezing, performing reverse osmosis membrane concentration of pre-microfiltration, and performing sealing and cold storage, wherein the step of low-temperature oxygen-separation breaking and squeezing is used for leading inert gas to a breaking machine and a squeezing machine set for separating oxygen and maintaining positive pressure environment, so that the breaking and squeezing process is in a low-temperature oxygen-separation state; the step of reverse osmosis membrane concentration of pre-microfiltration is used for performing membrane concentration after compressed fruit juice is subjected to multi-level filtration (including microfiltration), wherein the concentration process is in the low-temperature oxygen-separation state. In an entire production course of the processing method, any foreign chemicals (free from pollution) are added, steam is not needed in the production course, and the electricity consumption is low; and drained waste water drained by cleaning fruits, and rosa roxburghii dry residues can be cycled in a green ecological manner. The processing method disclosed by the invention is an environmentally-friendly energy saving technique, and is particularly suitable for being used in Guizhou regions with good ecology and low temperature.
Owner:贵州宝寿生物科技有限公司

Efficient planting device for agricultural planting

The invention discloses an efficient planting device for agricultural planting. The device comprises a greenhouse body and a greenhouse ceiling, water collection tanks are arranged at the tops of theouter sides of both the left side and the right side of the greenhouse body, filtering nets are arranged at the tops of the water collection tanks, the bottoms of the water collection tanks are both connected with water accumulation boxes through lower water pipes, the water accumulation boxes at the left side and the right side are both connected with spraying pipes located at the upper sides inside the greenhouse body through connection water pipes, and water pumping pumps are connected to the bottoms of the connection water pipes. According to the efficient planting device for agriculturalplanting, rainwater can be effectively collected and utilized to conduct irrigation, the using cost of the greenhouse is lowered, the effects of conducting ventilation and maintaining the indoor temperature and humidity to be stable can be achieved, the planting effect is improved, a fan is arranged in the channel, through a controller, a walking mechanism is controlled to move, a sunshade screenis driven to be unfolded, the temperature inside the greenhouse is lowered, and the greenhouse does not need to be manually covered with the sunshade screen, besides, salt for melting snow can be uniformly sprayed to the greenhouse ceiling in the circumferential direction, the spraying effect is good, the coverage area is large, and the snow melting effect is good.
Owner:尚许静

Method for reducing corner cracks of small low-carbon boron-containing steel square billet

ActiveCN107052294AStable control of surface qualityHigh strengthBoron containingGoverning equation
The invention discloses a method for reducing corner cracks of a small low-carbon boron-containing steel square billet. The method includes primary cooling and secondary cooling. A reasonable primary cooling water amount and secondary cooling water amount governing equation during continuous casting is given out on the basis that the crystallizer water inlet temperature, season or environmental temperature change influences are fully considered, the proper secondary cooling water distribution ratio of all areas is adjusted on this basis, the first area accounts for 35%-40%, the intermediate area apart from the first area and the tail area accounts for 52%-60%, the tail area accounts for 5%-8%, and therefore the corner temperature of a casting blank at a bent straightened area can be controlled more stably, and a third brittleness temperature interval of low-carbon boron-containing steel is reasonably evaded. By the adoption of the method, through optimized control over a continuous casting cooling technology of the small low-carbon boron-containing steel square billet, the corner crack defect of the casting blank can be greatly reduced, the crack occurrence rate is lowered to be within 0.5% from 6.67% before, surface quality of the casting blank can be stably controlled, and the quality of final products is improved.
Owner:INST OF RES OF IRON & STEEL JIANGSU PROVINCE

Horticultural composite phase change pipe and preparation method thereof

The invention discloses a horticultural composite phase change pipe and a preparation method thereof; the prepared horticultural composite phase change pipe takes inorganic phase change material as the main material and is sealed in a polyethylene pipe; and the inorganic phase change material is prepared from the inorganic phase change material in percentage by mass: 8.8 to 10.6 percent of Na2SO4, 72 to 74 percent of Na2HPO4.12H2O, 1.5 to 3.5 percent of CaC12, 1 percent of Na2B4O7.10H2O, 0 to 1 percent of CMC and the balance water, and the sum of the percentage of the inorganic phase change material is 100 percent. The preparation method comprises the following steps that: the inorganic phase change material is prepared and mixed according to different phase change temperature and latent heat requirements; and then the mixed inorganic phase change main material is inorganically heated to the temperature which exceeds the phase change temperature, and then the material is changed into liquid state; the liquid material becomes saturated solution; liquid filling equipment seals the saturated solution with the polyethylene pipe; and when in sealing, the actual pipe diameter and the length of sealing is adjusted according to the bearing capability of different building walls and the required heat load, and the horticultural composite phase change pipe is prepared.
Owner:NORTHWEST A & F UNIV

Hard wood cutting seedling culture method of Tamarix taklamakanensis

The invention discloses a hard wood cutting seedling culture method of Tamarix taklamakanensis. The method comprises the following steps of (1) cutting collection and pruning; (2) cutting rooting induction; (3) cutting forcing cultivation in bootbed; (4) cutting seedling culture in a container; (5) rooting seedling field transplantation. According to the hard wood cutting seedling culture method of Tamarix taklamakanensis, appropriate rooting powder is selected for rooting induction and cutting forcing treatment in bootbed, so that healing and rooting of the bases of cuttings are effectively promoted; moreover, through rational control over the cutting forcing temperature and time, environmental conditions of low air temperature and high earth temperature are created for the cuttings of Tamarix taklamakanensis; compared with a traditional cutting method of Tamarix taklamakanensis, the survival rate of the cuttings is increased by 10 percent; by means of the hard wood cutting method ofTamarix taklamakanensis, the growth is fast, the survival rate is high, the seedling culture period is obviously shortened, and the cutting reproduction efficiency and the cutting seedling culture survival rate are obviously improved; the pseudo alive phenomenon that the cuttings of Tamarix taklamakanensis sprout is effectively controlled, and the problems that by means of cutting of the cuttingsof Tamarix taklamakanensis, rooting is difficult and the reproduction coefficient is low are solved.
Owner:GANSU DESERT CONTROL RES INST

Areca catechu controlled-release fertilizer and preparation method thereof

The invention discloses an areca catechu controlled-release fertilizer and a preparation method thereof. The controlled-release fertilizer is prepared by compounding ingredients, such as reactive film forming and enveloping urea with enveloping quantity of 4%and enveloping quantity of 5% (at different nutrient release periods), urea, diammonium phosphate, potassium sulfate and borax. The special nutrition-synchronized controlled-release fertilizer for areca catechu, disclosed by the invention, is compounded according to the characteristics, nutrient demand law and required nutrient elements of the normal growth, development and cultivation of areca catechu, nutrients required by areca catechu can be supplied continuously and synchronously, the needs of three key elements, namely nitrogen, phosphorus and potassium, and a nutrient element, namely boron, in a yearly growth period of areca catechu are met, and the fertility is more lasting, so that the plant body resistance is effectively adjusted, the diseases are reduced, the yield is increased, the quality of crops is greatly improved, and the mouth feel of areca catechu is good; the problem of high cost caused by the fact that the controlled-release fertilizer is used alone is solved; and meanwhile, the fertilization times can be decreased by 1-2 times, so that the labor intensity is reduced.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Desert greening method by covering heat-insulation and moisture-retention pots

InactiveCN102498848ALower maximum temperatureLower the temperatureHorticultureAtmospheric temperatureEngineering
The invention relates to an assembled heat-insulation and moisture-retention pot desert greening technology, which is characterized in that pot bodies with the functions of cooling, heat insulation, sand fixing, moisture retention and the like are covered in the desert, a few heavy objects (such as fine sand) are added into each heat-insulation and moisture-retention pot, and the heat-insulation and moisture-retention pots are pressed and fixed on the sand bed surface by virtue of the weight of the heavy objects; and at the same time, one or more small pores are opened at the edge of each pot, and after different pots are assembled, the assembled small pores provide plant growth spaces. According to the invention, the heat-insulation and moisture-retention pots adopt an assembled manner, can be prepared from organic polymer materials by foaming treatment, have a heat insulation function and can be repeatedly used. By adopting the technology for desert greening, the solar absorption by the sand bed on the terrene is extremely reduced, thus the surface layer temperature of the desert, the ground atmospheric temperature and the like are reduced; and the soil layer temperature on the terrene is increased at nighttime or in winter, thus the day and night temperature difference of the shallow strata is reduced.
Owner:周希圣

Power distribution box with heat dissipation function and convenient and quick to mount

The invention relates to a power distribution box, particularly to the power distribution box with a heat dissipation function and convenient and quick to mount, and aims to provide the power distribution box with the heat dissipation function and convenient and quick to mount by solving the technical problems. For solving the technical problems, the invention provides the power distribution box with the heat dissipation function and convenient and quick to mount. The power distribution box comprises a box body, a first screen plate, a second screen plate, an air blowing apparatus, a bracket and the like; the first screen plate is embedded in the bottom of the box body; the second screen plate is embedded in the top of the box body; the air blowing apparatus is arranged on the lower part of the interior of the box body; the bracket is arranged on the top of the air blowing apparatus; a mounting frame is arranged at the upper end of the bracket; an opening, which is positioned just in the right side of the mounting frame, is formed in the right wall of the box body; and a clamping apparatus is arranged on the left wall of the box body. The power distribution box achieves the effects of quick mounting speed, convenience in mounting and high heat dissipation; a first baffle and second baffle can baffle rain water, so that rainwater can be prevented from entering the box body; by virtue of the clamping apparatus, the power distribution box can be mounted and fixed more conveniently and quickly by people; and in addition, the power distribution box is safe and stable and high in generalizability.
Owner:BEIJING JINGCHUANGDA SCI & TECH

Main transformer radiator intelligent frequency conversion fan with photovoltaic conversion function and using method thereof

ActiveCN103982454ALower the temperatureThe natural cooling effect of the main transformer is goodPump controlNon-positive displacement fluid enginesTransformerFrequency conversion
The invention relates to a main transformer radiator intelligent frequency conversion fan with a photovoltaic conversion function and a using method thereof. The main transformer radiator intelligent frequency conversion fan comprises a main transformer body and an oil flow radiator communicated with the main transformer body. The main transformer radiator intelligent frequency conversion fan with the photovoltaic conversion function is characterized in that the main transformer radiator intelligent frequency conversion fan connected with a photovoltaic conversion system is mounted on the oil flow radiator, the main transformer radiator intelligent frequency conversion fan is connected with a control module, the control module is used for automatically starting and stopping the main transformer radiator intelligent frequency conversion fan through the temperature tested by an on-line oil temperature thermoscope connected to the main transformer body according to a preset oil temperature value. The main transformer radiator intelligent frequency conversion fan and the using method thereof are reasonable in design, capable of achieving energy saving and environmental protection, and capable of effectively solving the radiation problem under long-time working of the main transformer body.
Owner:STATE GRID CORP OF CHINA +5

Protective cultivation method of young tea trees of Ruixue No.1 tea

Disclosed is a protective cultivation method of young tea trees of Ruixue No.1 tea. The protective cultivation method includes steps: before spring tea in a new tea garden planted in autumn and winter germinates and unfolds in the next year, covering a small arch shed with a thin film and a shade net; during planting, for a new tea garden planted before spring, directly covering a small arch shed with a shade net; uncovering the thin film at the later stage of germinating and unfolding of the spring tea, and uncovering the shade net on early June; applying quick-acting nitrogen fertilizer for one time from middle April to early May, and then performing conventional tea garden management of the current year; if the trees develop not well enough in the current year, applying the quick-acting nitrogen fertilizer for one time before spring tea germinates and unfolds of the next year; in spring of the next year, when the trees develop well in the previous year, fully plucking over fish leaves of spring tea, removing whitened shoots, and performing shaping and trimming after spring; when the trees develops not well enough in the previous year, performing shaping and trimming before spring, covering the small arch shed with the thin film and the shade net to promote spring shoots to return green, uncovering the thin film and the shade net like the previous year, and performing conventional tea garden management. By the protective cultivation method, whitening of shoots is controlled, and the shoots are prevented from physiological damage like sunlight burning.
Owner:宁波黄金韵茶业科技有限公司
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