169results about How to "Accurately Control Humidity" patented technology

The invention discloses an air-cooled refrigerator. The air-cooled refrigerator is provided with a box which comprises a shell and a liner; the liner is arranged in the shell, and the space between the liner and the shell is filled with a heat preserving layer; and the liner is sequentially provided with a cold storage chamber, a temperature changing chamber and a freezing chamber from top to bottom. On the interior of the rear side of the freezing chamber, the heat preserving layer is provided with a cold air cavity for containing an evaporator and a draught fan. The cold air cavity is communicated with the freezing chamber through a first air feeding air duct which is located on an air outlet of the inner wall of the freezing chamber, and a freezing air door is arranged. The cold air cavity is communicated with the temperature changing chamber through a second air feeding air duct which is located on an air outlet of the inner wall of the temperature changing chamber, and a temperature changing air door is arranged. The cold air cavity is communicated with the cold storage chamber through a third air feeding air duct which is located on an air outlet of the inner wall of the cold storage chamber, and a cold storage air door is arranged. The invention further discloses a humidifying and freshness keeping method. The air-cooled refrigerator is reasonable in structure, accurate in humidity control and high in practicability, water in the air-cooled refrigerator is kept conserved, and frosting is effectively prevented.

The invention provides a precision humidity control system and a wine cabinet. The precision humidity control system comprises a humidifying module, a dehumidifying module and a controller; the humidifying module is used for ultrasonic humidifying and automatically controls a humidifying water level; the controller controls running of the humidifying module and the dehumidifying module. The invention further provides the wine cabinet with the precision humidity control system. The wine cabinet comprises a box, a door, a refrigerating system and the precision humidity control system; the refrigerating system comprises a compressor, an evaporator and a condenser; the precision humidity control system comprises the humidifying module, the dehumidifying module and the controller; the humidifying module is used for ultrasonic humidifying and automatically controls the humidifying water level; humidifying water for the humidifying module is mainly from condensation circulating water of the evaporator; the controller controls running of the humidifying module and the dehumidifying module. A humidifying unit is modularized, miniaturized and integrated to a liner, no space of the liner is wasted, and when the wine cabinet stops refrigerating, the humidity can still be adjusted to allow dehumidification and precision humidity control.

The invention discloses a space plant culture device and belongs to the technical field of space plant culture. The culture device mainly comprises a plant growth room, a plant culture dish, a root system water supply module, a temperature control module, a humidity control module, a light illumination module, a photographing module and a controller; the root system water supply module is used for providing growth supporting and needed moisture and nutrient liquid to plants; the temperature control module is used for controlling the temperature of the plant growth room; the humidity control module is used for controlling the humidity in the growth room; the light illumination module provides suitable light intensity to the growth of the plants; gas circularly passes through a draught fan and a ventilation pipeline so that the circulation of air in the growth room is realized; the photographing module realizes monitoring and photographing of the growth of the plants; the control modules realize functions including automatic control of a whole plant culture box, data acquisition and the like.

The invention relates to a soft-shelled turtle hatching method, which comprises the following steps of: (1) stacking fertilized soft-shelled turtle eggs layer by layer on the surface of a sand layer of a hatching tray in an incubator, wherein the thickness of the sand layer is 2 to 3 centimeters, and the water content of the sand layer is 7 to 8 percent; (2) covering a sand layer with the thickness of 2 to 3 centimeters and the water content of 7 to 8 percent on the soft-shelled turtle eggs; and (3) after the steps (1) and (2) are finished, regulating the temperature in the incubator to be 33 to 34 DEG C, keeping the relative humidity of air at 85 to 88 percent, ventilating for 1 to 2 hours at noon of every day in the hatching process, and finishing hatching of the soft-shelled turtle eggs after 43 to 45 days. The hatching method is simple and feasible; the special incubator is scientific and reasonable in design and convenient to operate; and manpower is greatly saved, the hatching cost is reduced, the survival rate of soft-shelled turtle fries is improved, and economic benefits of an enterprise are increased.

The invention relates to a gas humidifying system for a fuel cell testing platform. The gas humidifying system consists of a multistage heating system, an online automatic water replenishing system, a humidifying water flow and pressure control system and a gas temperature and humidity real-time monitoring system. The multistage heating system comprises a constant-temperature water bath kettle, a heating controller and heating rods. A plurality of heating rods used for heating the humidifying water are arranged in the constant-temperature water bath kettle and are connected with the temperature controller to realize multistage temperature regulation from 20 DEG C to 100 DEG C. The gas humidifying system for the fuel cell testing platform has the advantages that the temperature control of the humidifying water can be realized through the multistage heating system, the flow and pressure control function of the humidifying water which passes through a perfluorosulfonate membrane tube humidifier is realized, the online automatic water replenishing function is realized, the detection and feedback functions of a real-time online high-temperature-resistant and high-humidity-resistant temperature and humidity sensor is realized and finally the accurate control of gas humidity is realized through the synergistic effect of the functions.

The invention discloses a temperature-and-humidity control system which comprises the components of a humidifying system, wherein a humidifier, a water tank, a circulating water pump and a water heater are connected through pipes for forming a humidifying water circulating path; and a temperature-and-humidity adjusting system which comprises a first heat exchange, a gas-and-liquid separator and asecond heat exchanger, wherein the first heat exchanger, the gas-and-liquid separator and the second heat exchanger are serially arranged in a gas discharging pipe. The pipe for connecting the water heater and the humidifier is communicated with a heat exchange pipe through a tee joint flow regulating valve. The heat exchange pipe is successively communicated with a plurality of heat exchangers for performing temperature regulation on the gas discharging pipe. The gas discharging pipe is also provided with a temperature detecting device and a temperature-and-humidity detecting device. According to the temperature-and-humidity control system, accurate control for the temperature and humidity of the gas is realized through a plurality of heat exchangers. The water in the water heater can beused for humidifying the gas in the humidifier and adjusting the final air inlet temperature and dew point temperature by the heat exchanger, thereby effectively improving heat utilization rate and reducing energy consumption. The invention further discloses a fuel cell testing platform.

The invention provides a heat pump drying system, relates to the technical field of drying equipment, and solves the technical problems of attenuated dehumidification capacity during defrosting and high humidity fluctuation in an air way. The heat pump drying system comprises a heat pump system and a circulating air way; a compressor, a condensation device, an expansion valve, a main evaporation device and an auxiliary evaporation device are arranged on a refrigerant flowing way of the heat pump system; the condensation device and the main evaporation device are both positioned in the circulating air way; the auxiliary evaporation device is positioned outdoors; and when the auxiliary evaporation device is in a defrosting state, the main evaporation device is located in a heat absorption and dehumidification state. The heat pump drying system achieves high drying efficiency and energy conservation, has two functions of dehumidification and hot air drying, is precise in humidity controland suitable for multiple use environments to meet multiple drying requirements, still can perform the dehumidification during defrosting, and is free of system capacity attenuation during defrosting.

The invention provides a microorganism soil sanitation solar energy loop heat pipe system with a changed coiler coiling density. The microorganism soil sanitation solar energy loop heat pipe system comprises a solar device and a loop heat pipe device, the solar device comprises a solar thermal collector and a heat exchanger, the heat exchanger is connected with the solar thermal collector, air isinput into the heat exchanger through a draught fan and is heated in the heat exchanger to form hot air, and the hot air enters the loop heat pipe device; the loop heat pipe device comprises an air inlet channel, an air outlet channel, a loop heat pipe and a gas cavity, the loop heat pipe comprises an evaporation end and a condensation end, and the condensation end is arranged on the wall face ofthe lower portion of the gas cavity; the gas cavity is arranged in soil, the condensation end is coilers located on the outer wall face of the lower portion of the gas cavity, the wall face of the lower portion of the gas cavity is of a round structure, and the density of the coilers is gradually increased from the center of the round structure in the radial direction. By means of the arrangement,heat can be started to be emitted from the outer end of the round structure inwards. The pipe diameters of the coilers on the outer end are larger, so that more heat is needed for achieving overall even radiating, the soil repairing effect is strengthened, and the overall even repairing is achieved.

The invention provides a two-day curing process of an accumulator plate. The process comprises a positive plate curing process and a negative plate curing process. A positive plate and a negative plate are cured firstly and then dried; temperature, humidity and time in each stage can be controlled accurately, the time of the whole process is shortened to be not more than two days, the quality of the cured positive plate and negative plate meets requirements, the production efficiency is improved greatly, and the process is suitable for production.

The invention provides a wet film humidifying system of an air-cooling refrigerator and belongs to the technical field of refrigeration equipment. The wet film humidifying system of the air-cooling refrigerator solves the problems that according to an existing refrigeration humidifying scheme, devices are additionally arranged, more space is occupied, cost is improved, and humidity control cannot be achieved; or an external water source needs to be additionally arranged and use is inconvenient. The wet film humidifying system of the air-cooling refrigerator comprises a freezing chamber and a refrigerating chamber, the freezing chamber and the refrigerating chamber are communicated with an air inlet duct and an air returning duct so that a one-way circulating air path can be formed, a fan and a heat exchanger are arranged in the freezing chamber, a humidification branch is further communicated between the freezing chamber and the refrigerating chamber, the air returning duct is communicated an air inlet of the humidification branch in a forked mode, an air outlet of the humidification branch is communicated with the freezing chamber, an option switch is arranged on the forked portion of the air returning duct, a wet film humidifier is arranged in the humidification branch, a water receiving disc is arranged below the heat exchanger and connected with the wet film humidifier through a water delivery duct. The wet film humidifying system of the air-cooling refrigerator is low in manufacturing cost and environmentally friendly, has the function of automatic regulation and control and can achieve accurate humidity control.

The invention discloses an intelligent adjustment control system for temperature / humidity of a wine cabinet. The intelligent adjustment control system comprises a central processor, an indicating lamp module, a button module, a sensing module, a self-locking module, an illuminating module, a display processing module, a temperature adjusting module, a scheduling module, a humidity adjusting module and a data storage module, wherein the indicating lamp module, the button module, the sensing module, the self-locking module, the illuminating module, the display processing module, the temperature adjusting module, the scheduling module, the humidity adjusting module and the data storage module are connected with the central processor. The sensing module comprises a temperature sensor and a humidity sensor. The temperature sensor is used for acquiring temperature information in the wine cabinet and transmitting the temperature information to the central processor. The humidity sensor is used for acquiring humidity information in the wine cabinet and transmitting the humidity information to the central processor. According to the intelligent adjustment control system, through connection between the central processor and the modules, intelligent adjustment to the temperature and the humidity of the wine cabinet is realized. The intelligent adjustment control system has functions of automatic dehumidification and automatic humidification. Relatively user-friendly design of the whole system is realized. Intelligent analysis can be automatically performed according to an actual condition. The temperature and the humidity in the wine cabinet are accurately controlled for ensuring quality of the wine. The intelligent adjustment control system has relatively high economic benefit and relatively high market value.

The invention relates to a fuel cell humidifier test platform. The fuel cell humidifier test platform is characterized in that the fuel cell humidifier test platform comprises a dry air generating unit, an air heating unit, an air humidifying unit, a data acquisition system and an automatic control system, wherein the dry air generating unit is used for generating dry compressed air having a certain pressure and needed by test; the air heating unit is used for heating the dry compressed air to a test setting temperature; the air humidifying unit is used for generating steam, humidifying the dry compressed air and simulating a humidifying side gas or a humidified side gas of a humidifier to be tested; and the data acquisition system and the automatic control system are used for setting testconditions and collecting test data. The fuel cell humidifier test platform can control the temperature, the relative humidity, the pressure and the mass flow of air before the air flows through thehumidifier and test the pressure drop, the temperature change and the relative humidity change before and after the air flows through the humidifier in order to determine water heat and mass transferin the humidifier, so data bases are provided for the design, optimization and application of the humidifier.

The invention relates to a multi-cold source modular regional cooling energy-saving system of a data center and a control system of the system. The system comprises an air sending system, an air return system and a regional heat exchange system. By integrating a multi-air duct heat exchange system, an evaporation and dried cooling system and a compressed refrigerating system and by switching control of different modes, high-efficiency cooling of a machine room server cabinet of the data center is achieved, and the safety level of the data center is improved; and energy saving and multi-mode intelligent control are achieved according to dry-bulb temperature and wet-bulb temperature of outdoor air, a machine room air sending temperature, an air return temperature, machine room air data acquisition and draught fan frequency change, and the system is high in automation and is accurate and reliable.

A passenger compartment humidity control system is disclosed. In a powered state of a vehicle, an air-conditioning controller automatically acquires the temperature and relative humidity inside a passenger compartment in real time through an in-vehicle temperature sensor and an in-vehicle humidity sensor, and acquires the atmospheric temperature outside the vehicle and relative humidity signals, according to the allowable relative humidity threshold corresponding to the temperature inside the passenger compartment, the related controlled objects are automatically driven to complete the actionssuch as dehumidification, humidification and switching the air conditioning cycle modes in the passenger compartment, so as to control the relative humidity inside the passenger compartment to maintain at a reasonable level; at that same time, the temperature and the relative humidity of the area near the inner wall of a front windshield are detected according to a front windshield temperature and humidity detection module in the humidification process, and whether an air conditioning inner and outer circulation actuator and an air conditioning mode actuator need to be driven is calculated and confirmed. The signal source selection of the system is more reasonable, the passenger compartment can be controlled in the optimal humidity range, the fog problem of the front windshield caused bythe humidification process is simultaneously avoided, and the accurate control over the humidity of the passenger compartment is met.

The invention provides a bedstead-type factory-like toadstool cultivation method. The bedstead-type factory-like toadstool cultivation method includes the steps of selection of toadstool strains, preparation of nutrition bags, selection and treatment of culture media, construction of a cultivation bedstead, seeding and earthing, mycelial culture management and fruiting management. The bedstead-type factory-like toadstool cultivation method has the advantages that the problems of seasonal limitation in toadstool production, unstable safety and yield of cultivated food and the like are solved; mycelial culture and fruiting management are carried out in a same breeding chamber, and accordingly, complexity and cost of production are reduced; pretreated soil media are used as main culture media, an annualized cultivation technique is realized completely through factory-like mushroom house conditions, limitation in climate and season cultivation is broken through, three-dimensional annualized production, high-efficiency ecology and safety in fruiting are achieved, and safe, fresh and delicious toadstool products can be obtained all year round.

The invention relates to a wood drying device and drying method, in particular to a side draught fan type cabin wood drying device and drying method. In order to solve the problems that an existing wood drying production device and method waste energy, pollute environment and prolong the wood production machining period, imported wood has the large medical inspection and insect removing workloads, and an existing wood transportation ship cannot achieve the function of wood drying in the remote transportation way, the device comprises a cabin, a cabin-interior equipment bearing frame, a drying device humidity adjusting air exchange system, a wood drying medium forced circulating system, a heat exchanger system, a drying medium state monitoring sensor system and a dried wood water containing rate monitoring sensor system. The method comprises the steps of wood stacking, cabin cover closing, wood drying, drying degree detection of the wood, and drying medium state adjusting according to a detection result. The device and method are used for drying and insect removal treatment in the wood transportation process.

The present invention provides a pressurization treatment equipment for making tobacco material be on-line puffed. Said pressurization treatment equipment includes a pressure-bearing shell body and a spiral conveying body, on the pressure-bearing shell body a steam inlet, a condensate water outlet, a material inlet and a material outlet are set, in the interior of said pressure-bearing shell body a liner bushing is mounted, the described liner bushing and the spiral conveying body are co-axially mounted, and between the liner bushing and pressure-bearing shell body an interval space is formed. Besides, said invention also provides its working principle and its concrete operation method.

The invention relates to a constant temperature and humidity LED incubator capable of adjusting light intensity. The incubator comprises an incubator body, wind guide walls, a compressor, a humidifier, an evaporator, a heating resistor, a temperature sensor, a humidity sensor, a circulating fan, a shelf and an incubator body control box; the outer layer of the incubator body is a baking finish steel plate, the inner layer of the incubator body is a stainless steel plate, and the portion between the inner layer and the outer layer is filled with polyurethane foamed filler; the wind guide walls are arranged on the left inner side wall and the right inner side wall of the incubator body, and wind guide meshes are evenly distributed in the wall surfaces of the wind guide walls; the compressor and the humidifier are arranged on the top of the incubator body; the evaporator and the heating resistor are arranged at the bottom of the incubator body; the temperature sensor and the humidity sensor are arranged in the incubator body; the circulating fan is arranged at the bottom of the incubator body, receives wind of the left side wind guide wall, the heating resistor and the humidifier and supplies wind to the right side wind guide wall; the shelf is arranged in the incubator body, the two sides of the shelf abut against the wind guide walls; the incubator body control box is connected with an LED lamp panel, the compressor, the humidifier, the evaporator, the heating resistor, the circulating fan, the temperature sensor and the humidity sensor.

The invention discloses a novel heat recovery fresh air fan with mist spraying, cooling and air exhausting functions. The novel heat recovery fresh air fan comprises a cabinet, a fresh air channel, a heat exchanger and an air exhausting channel are arranged in the cabinet; one end of the fresh air channel is an outdoor fresh air inlet, and the other end of the fresh air channel is an indoor fresh air inlet; one end of the air exhausting channel is an indoor exhaust outlet, and the other end of the exhaust channel is an outdoor exhaust outlet; the outdoor fresh air inlet, the indoor fresh air inlet, the indoor exhaust outlet and the outdoor exhaust outlet are all arranged on the side surface of the cabinet; a new fan is arranged at the indoor fresh air inlet, an exhaust fan is arranged at the outdoor exhaust outlet, and both the fresh air channel and the air exhausting channel penetrate through the heat exchanger to enable air to realize heat exchange; and a spraying device is arranged between the indoor exhaust outlet and the heat exchanger. The novel heat recovery fresh air fan is simple in structure, and can cool exhaust air and perform heat recovery on exhaust air, prevents the cross pollution of fresh air and exhaust air and effectively reduces temperature and energy consumption.

The invention discloses an odor smell test standard case and an odor test method implemented by the aid of the same. The odor smell test standard case comprises a constant-temperature chamber, a smell and odor chamber, a sample container, a reference container or reference pipeline, a flow meter, a gas control valve, a clean gas source supply device and standard-grade gas source supply devices. The sample container and the reference container or reference pipeline are positioned in an identical constant-temperature chamber environment, sample gas emitted when test samples are heated and reference gas with different odor grades can be exhausted into the smell and odor chamber, and a test person in the small and odor chamber can compare and detect odor, so that odor grades of the sample gas can be evaluated. The odor and smell test standard case and the odor test method have the advantages that the odor of the gas emitted by the test samples can be evaluated and tested in the unified standard test environment according to the reference gas with the different odor grades, the odor smell test standard case and the odor test method are free of influence of external environments, accordingly, the test accuracy and reliability can be guaranteed, the gas can be conveniently and easily tested and can be tested only by the single test person, and errors due to the fact that odor is tested by different test persons or is tested by the same test person at different times can be prevented.

The invention discloses steaming and baking equipment, a humidity detection method based on the steaming and baking equipment and a humidity control method based on the humidity detection method. Thesteaming and baking equipment comprises a cavity assembly which is provided with a cooking cavity for steaming and baking, a cooling pipe which is communicated with the cooking cavity and is providedwith a pressure relief hole, a humidity sensor which is used for detecting the humidity at the pressure relief hole, and a cooling device which is used for cooling the cooling pipe. The cooling pipe communicates with the cooking cavity, part of steam in the cooking cavity is guided into the cooling pipe, the cooling pipe is cooled through the cooling device, so that the temperature in the coolingpipe is reduced to the preset temperature, then the humidity at the pressure relief hole is detected through the humidity sensor, the effect of detecting the humidity in the steaming and baking equipment is achieved, and therefore the humidity in the cooking cavity of the steaming and baking equipment can be accurately controlled.

The invention provides a drum type sand mixer and a sand mixing method thereof. The sand mixer comprises a drum and an airtight shell. The drum is transversely arranged in the airtight shell in the axis direction. The airtight shell is provided with a vacuum pipe, and the vacuum pipe is used for being connected with vacuumizing equipment so as to pump air in the airtight shell. A rotor and / or a roller are / is further transversely arranged inside the sand mixer. During sand mixing, sand and auxiliary materials are fed into a hopper of a drum, vacuumizing treatment is conducted, drying mixing is conducted, and wet mixing is conducted after vacuum is removed so that mixed sand can be obtained. According to the drum type sand mixer and the sand mixing method thereof, vacuum sand mixing is adopted, so that the influence of air on very light materials is avoided or reduced, the loss that light materials are pumped away by a dust remover is avoided, and sand mixing uniformity is improved. By the adoption of the drum type structure, the drum and the rotor are transversely arranged, a sand mixing dead zone is avoided, the stirring effect is improved, and thus the sand mixing uniformity is improved, the sand mixing quality is improved, and energy consumption is lowered.

The invention discloses a moisture preserving wine cabinet, and belongs to the technical field of wine cabinets. The moisture preserving wine cabinet is designed for solving the problem that a traditional wine cabinet can not preserve moisture as being not provided with a humidity control device. The moisture preserving wine cabinet comprises a cabinet body which is internally provided with a refrigeration system; the refrigeration system comprises a compressor, an evaporator and a humidity control device; the humidity control device comprises a controller, a humidifying water box, a humidity sensor and an electric heater, and the humidity sensor and the electric heater are connected with the controller. When an actual humidity value detected by the humidity sensor is lower than a preset humidity value in the controller, the controller controls the electric heater to heat evaporator defrosting water or supplementary water inside the humidifying water box. The moisture preserving wine cabinet disclosed by the invention realizes humidification by heating the evaporator defrosting water or supplementary water through the electric heater, realizes dehumidification by increasing the rotation speed of the variable frequency compressor and increasing refrigerating output, ensures that the humidity inside the wine cabinet is within an optimal control range, and can be used for accurately controlling the humidity and prolonging the wine storage time.

The invention relates to the field of the processing of jasmine tea, in particular to an automatic scenting machine and scenting method for jasmine tea. The automatic scenting machine is characterizedby comprising a cavity body, wherein a circulating mesh belt conveyor is installed inside the cavity body, the top of the cavity body is provided with a dehumidifying fan, an air inlet pipe, an air outlet pipe and a fan communicated with the air inlet pipe and the air outlet pipe, the outer side lower part of the cavity body is provided with an air inlet assembly communicated with the cavity body, a heating assembly is installed on the inner lower end of the cavity body, the outer side of the cavity body is provided with a humidifier, the humidifier is connected with a humidifying pipeline, the humidifying pipeline stretches into the cavity body, and a temperature sensor and a humidity sensor are installed on the center position inside the cavity body. By adopting the automatic scenting machine for the jasmine tea, the temperature, the humidity and the material flow can be precisely controlled, the clean, programmed-control and automatic processing can be realized, the scenting quality of the jasmine tea is ensured to be clean, hygienic, stable, uniform and consistent, the scented jasmine tea is fresh and strong in fragrance, sweet and mellow in taste and bright in soup color.

The invention discloses a prefabricated concrete member steam curing production line and a steam curing method. The production line is composed of a steam heat source machine system, a steam transmission pipeline, a mold table and a steam curing shed, wherein water is converted into dry steam through the steam heat source machine, the dry steam is distributed to all pipelines through a steam distributing cylinder and finally enters the steam curing shed of a production line, valves on the steam transmission pipeline independently control mold table sets, temperature and humidity control is conducted through the steam curing shed and a temperature and humidity sensing probe, temperature control in a curing process is divided into temperature rise and then natural cooling, the heat preservation time of each stage is strictly controlled, and finally it is ensured that the strength of a component meets the specified requirement after the natural cooling. The prefabricated concrete member steam curing production line and the steam curing method are energy-saving, consumption-reducing, emission-reducing and efficiency-improving, the construction cost is low, the occupied area is small, the site utilization rate is high, the operation flexibility is high, the curing effect is good, the mold stripping time is shortened, the mold stripping strength is improved, the production efficiencyis improved, the component surface is crack-free, and the heat energy utilization rate is high.

The invention discloses an electronic dehumidifying cabinet and method in the electronic dehumidifying technique domain, which comprises the following parts: dehumidifying control panel, dehumidifying control chip, dehumidifying execution part and cabinet body, wherein the dehumidifying execution part contains fan of circulation air, drier in the dehumidifying channel, heater to dry drier and two-direction outlet channel; the control valve accomplishes the alternative circulation of air dehumidifying and drier dehydration in the inlet of dehumidifying channel, which carries the water from drier to dehumidifying cabinet. The invention displays rapid dehumidifying speed with uniform humidity insides, which reaches the precise humidity control without rebounding.

The invention relates to a warehousing method for fresh-keeping of rice. The warehousing method comprises following steps of: (1) constructing or reconstructing a grain depot in the shape of a cuboid, arranging sealing windows at upper potions of walls on four sides and arranging heat-preservation and thermal insulation material inside of walls, wherein the areas of the sealing windows are 10 to 25% of those of walls; (b) arranging a cooling device, a ventilating device, a temperature self-control device, a humidity self-control device into the grain depot; and (c) laying a layer of calcium oxide on the ground of the grain depot and laying a PVC thin film on calcium oxide, drying paddy or rice with moisture content less than 15% by utilizing sunlight and packaging paddy or rice to be piled on the PVC thin film, adding repellents and utilizing the PVC thin film to wrap up pockets, controlling temperature of the grain depot within the range of 10 to 15 DEG C and keeping relative humidity of the grain depot within the range of 30% to 50% for storage, decreasing oxygen-bearing content within the range of 4v% to 10v% after 20 to 30 days till ex-warehouse processing is performed. The warehousing method for fresh-keeping of rice has following beneficial effects: neither rice worms nor moulds can be produced from rice or paddy insulated by the PVC thin film; storage time of rice or paddy can be prolonged; and nutrition and mouth feel can be maintained.

The invention discloses a system for precise hierarchical control of temperature and humidity. The system comprises a fresh air passage, a return air passage, an air supply passage, a first dehumidification device and a cooling device, the fresh air passage is joined with the return air passage and connected into the air supply passage, the first dehumidification device is arranged in the fresh air passage, the cooling device is arranged between the output end of the return air passage and the input end of the air supply passage, the output end of the first dehumidification device of the system is further connected with a fresh air passage branch, the output end of the fresh air passage branch is connected into the return air passage, and the fresh air passage branch is provided with a second dehumidification device. Air supply temperature and humidity can be controlled accurately, reheating during temperature and humidity control of a conventional air conditioner is avoided, re-humidification is avoided, energy consumption for system operation is effectively lowered, and energy conservation and environmental protection are realized.

The invention discloses a multifunctional seedling culturing greenhouse. According to the multifunctional seedling culturing greenhouse, a plurality groups of solar photovoltaic panels are mounted on a greenhouse roof; a plurality layers of floating disc racks are designed on each seedbed shelf; water retaining films are paved inside the floating disc racks; the water retaining films are filled with seedling culturing water; foamed porous plates are placed on the seedling culturing water; seedling matrix bags are placed on the foamed porous plates; atomization nozzles and light supplementing lamps are mounted right above each layer of the floating disc racks; a humidifying curtain and an exhaust fan are mounted on a side surface of a greenhouse frame; a water supply tube is mounted at the upper end of the humidifying curtain; and a water circulating trough is mounted at the lower end of the humidifying curtain. As power is accumulated by using the solar photovoltaic panels on the greenhouse roof, seedlings can be sufficiently lighted at day and night; heat-preservation lamps inside the greenhouse ensure appropriate temperature for the seedlings to grow inside the greenhouse; due to the humidifying curtain on the side surface of the three-dimensional seedbed greenhouse, the air humidity inside the greenhouse can be accurately controlled; and due to the exhaust fan on the side surface of the greenhouse, the greenhouse can be relatively good in air circulation and appropriate to growth of the seedlings.

The invention relates to an electrospinning fiber injection device with the controllable injection environment and a control method of the injection environment, belonging to the field of electrostatic spinning. In order to realize thermostatic control over temperature and humidity of electrostatic spinning and make a spinning space compact and adjustable, the technical key points are described inthat an air-blowing tank is composed of four rectangular support racks; the four rectangular support racks form integrated or detachable connection through a mode of connecting left with right side walls; the upper side wall of each rectangular support rack communicates with the air-blowing tank; the inner side wall and the outer side wall are enclosed walls; then a transverse air-blowing openingis formed in at least one inner side wall of the four rectangular support racks; the lower side wall is equipped with an air-blowing opening, through which an air curtain is sent; and a transverse air-blowing opening is formed in the inner side wall of one rectangular support of the air-blowing tank.