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62results about How to "Absorb enough" patented technology

Frost-less air-source heat pump hot water unit and proportional-integral-differential control method for same

The invention discloses a frost-less air-source heat pump hot water unit and a proportional-integral-differential control method for the same. The proportional-integral-differential control method includes performing computation according to received air temperature and humidity parameters, received air pressure parameters and received surface temperature parameters of an evaporator when outdoor temperature parameters which are transmitted by a temperature and humidity sensor and are received by a computation controller are lower than 0 DEG C, controlling the opening of an electronic expansion valve according to a computation result and regulating the surface temperature of the evaporator by means of increasing or reducing the opening of the electronic expansion valve so that the surface temperature of the evaporator is constantly higher than a frost formation point; and enabling a silicon-controlled power regulator to judge a suction superheat degree of a compressor according to received suction temperature and suction pressure of the compressor, increasing or reducing the power of an electric heater and maintaining that the suction superheat degree of the compressor only varies within a set value range. The frost-less air-source heat pump hot water unit and the proportional-integral-differential control method have the advantage that adjustment for the opening of the electronic expansion valve is matched with adjustment for the power of the electronic heater, so that the purpose of maintaining safe and efficient running of a system is achieved.
Owner:NANJING NORMAL UNIVERSITY +1

Frostless air handling unit and proportion-integration-differential control method thereof

The invention discloses a frostless air handling unit and a proportion-integration-differential control method of the frostless air handling unit. The frostless air handling unit comprises a circulating working return circuit and a controllable silicon power adjuster, wherein the circulating working return circuit is composed of a compressor assembly, a condenser, an electronic expansion valve and an evaporator assembly, the compressor assembly, the condenser, the electronic expansion valve and the evaporator assembly are sequentially connected along the refrigerating fluid flowing direction. When a calculation controller receives an outdoor temperature parameter transmitted by a temperature-humidity sensor and the temperature parameter is lower than 0 DEG C, the calculation controller carries out calculation according to received air temperature and humidity parameters, an air pressure parameter and an evaporator surface temperature parameter, controls the opening degree of the electronic expansion valve according to the calculation results, and adjusts evaporator surface temperature through increase or reduction of the opening degree of the electronic expansion valve. Meanwhile, the controllable silicon power adjuster judges an air suction superheat degree of a compressor through received compressor air suction temperature and air suction pressure, adjusts increase or reduction of electric heater power, and maintains the air suction superheat degree of the compressor to be kept in a preset value range. According to the frostless air handling unit and the proportion-integration- differential control method of the frostless air handling unit, the aim of maintaining safe and high-efficiency operation of the system is achieved.
Owner:宁波沃弗圣龙环境技术有限公司 +1

Liquid fertilizer for improving yellowing of crops

The invention discloses liquid fertilizer for improving yellowing of crops. The liquid fertilizer is prepared from the following components in percentage by weight: 15 percent to 25 percent of compound sugar alcohol, 10 percent to 20 percent of compound amino acid, 35 percent to 50 percent of acidic organic fertilizer, 5 percent to 15 percent of calcium fertilizer, 5 percent to 15 percent of microelement and the balance of water. According to the liquid fertilizer disclosed by the invention, the microelement and the compound amino acid form a compound through utilizing a reasonable proportion relation of the acidic organic fertilizer, the compound amino acid, the calcium fertilizer, the compound sugar alcohol, the microelement and the water, so that the absorption capability of crops on the microelement is improved and the utilization rate of the fertilizer is improved; meanwhile, the compound sugar alcohol and mineral elements in soil form a compound so that the environment of the soil is improved and the permeability of the soil is improved, and furthermore, a root system can easily absorb nutrients from the soil; meanwhile, the compound can also enter phloem parts of the crops and the nutrients needed by the growth of the crops are met; the utilization rate of the fertilizer is improved and the yellowing of the crops is improved.
Owner:SICHUAN ANDA CHEM CO LTD

Intelligent flowerpot

The invention discloses an intelligent flowerpot, which comprises a flowerpot body, a water supply device, a drain pipe and a humidity sensing device, wherein the flowerpot body comprises an outer flowerpot body and an inner flowerpot body; the inner flowerpot body is accommodated in the outer flowerpot body; the bottom of the inner flowerpot body is provided with a plurality of drain holes; the inner flowerpot body and the outer flowerpot body form an accommodating space; the water supply device is arranged in the flowerpot body; the drain pipe is arranged in the inner wall of the inner flowerpot body; the water inlet of the drain pipe is connected with the water outlet of the water supply device; the drain pipe receives water supplied by the water supply device and drains the water to the inner flowerpot body; the humidity sensing device is arranged in the flowerpot body, is connected with the water supply device, detects the humidity value of soil in the inner flowerpot body, and controls the water supply device to or not to supply water according to the detected humidity value. Therefore a plant in the flowerpot body can absorb sufficient water and the aim of automatically supplying water is fulfilled; moreover, when the water supplied to the inner flowerpot body is excessive, the rest water can be discharged to the accommodating space through the drain holes, sanitation around the flowerpot body is kept, a good growing environment is provided for the plant, and the healthy growth of the plant is further guaranteed.
Owner:HUIZHOU HENGLIDA IND DEV

Refrigerant heating apparatus

The invention provides a refrigerant heating apparatus and an air conditioner. The refrigerant heating apparatus is easy to manufacture and produce and has reliability guaranteed; the convective heat transfer coefficient between the refrigerant heating apparatus and a refrigerant is increased while the heat transfer effect is good. The technical scheme includes that the refrigerant heating apparatus comprises a casing, an electric heating pipe and a refrigerant inlet pipeline; the casing is provided with a refrigerant inlet, a refrigerant outlet and an electric heating pipe mounting port; the electric heating pipe extends into an inner cavity of the casing through the electric heating pipe mounting port and a power supply terminal of the electric heating pipe is disposed outside the casing; the refrigerant inlet pipeline is connected with the casing at the position of the refrigerant inlet; the outer surface of the electric heating pipe is of a rib structure capable of strengthening heat transfer. The rib structure is threaded rib or circular rib or bar-like rib structure. The threaded rib is wound on the outer surface of the electric heating pipe spirally, and the distance L between the outer end of the threaded rib and the wall of the inner cavity of the casing is smaller than the one twenty of the diameter D of a refrigerant vessel.
Owner:GREE ELECTRIC APPLIANCES INC

High-temperature heating device of FDM printer, printer and printing process

The invention discloses a high-temperature heating device of a FDM printer, the printer and a printing process. The high-temperature heating device of the FDM printer comprises a first heating moduleused for heating a printing wire material to a high-elastic state from a glass state and a second heating module used for heating the printing wire material to a viscous liquid state from the high-elastic state, wherein the first heating module and the second heating module are sequentially arranged along a feeding direction; the first heating module is internally provided with a first printing wire material conveying passage used for the movement of the printing wire material; the second heating module is internally provided with a second printing wire material conveying passage used for thefurther movement of the printing wire material; one end of the first printing wire material conveying passage is connected with a printing wire material feeding device; the other end of the first printing wire material conveying passage communicates with one end of the second printing wire material conveying passage via a throat pipe; and the other end of the second printing wire material conveying passage communicates with a nozzle. The high-temperature heating device of the invention can heat the printing wire material with a high melting point and has the advantages of high printing precision and good printing effect.
Owner:SOUTH CHINA INST OF COLLABORATIVE INNOVATION

Selenium-rich pig raising technology

The invention relates to the technical field of pig raising, in particular to a selenium-rich pig raising technology. The technology includes the steps of firstly, establishing a pig farm; secondly, determining the raising density; thirdly, conducting conventional raising; fourthly, conducting selenium-rich raising. The selenium-rich raising step includes the substeps of starting to feed pigs with a natural selenium-rich green feed (the selenium content of 0.10-0.40 mg/kg) 60 days before slaughtering, and feeding the pigs with a sufficient amount of selenium-containing feed every day according to a normal raising technological standard until slaughtering; or the selenium-rich raising step includes the substep of starting to feed the pigs with an artificially-prepared selenium-containing feed 60 days before slaughtering. A method for preparing the selenium-containing feed includes the steps of preparing 400 kg of feed for every 40 g of meat egg type selenium-containing nutrition powder, feeding the pigs with a sufficient amount of selenium-containing feed continuously for 45 days or longer according to the normal raising technological standard, stopping feeding the pigs with the selenium-rich feed 10 days before slaughtering. The pork pigs raised through the selenium-rich pig raising technology are environmentally friendly, fresh and tender in meat and suitable for popularization in the field, and the selenium content is up to standard.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI +2

Industrial cultivation method for basswood of edible mushrooms

InactiveCN114027092AAccelerate the speed of bacteriaRetain qualityCultivating equipmentsMushroom cultivationBiotechnologyMycelium
An industrial cultivation method for basswood of edible mushrooms comprises the following steps: 1) preparing basswood: selecting the basswood which is uniform in thickness, tall and straight and free of bending, cutting the basswood into a plurality of basswood sections, hollowing the central parts of the cut basswood sections to form basswood central holes, and punching a plurality of small through holes in the surface layers of the basswood sections by using punching equipment; 2) preparing strain blocks, namely implanting strains into the edible mushroom culture medium in an artificial inoculation or mechanical inoculation manner, and keeping for later use after the strains grow into the strain blocks; 3) sterilizing: sterilizing the basswood sections; 4) inoculating: putting the culture medium containing the strain blocks into the basswood center hole, and then sealing one end of the center hole; 5) carrying out mycelium culture: placing the basswood sections obtained in the fourth step in a culture room to be subjected to mycelium culture; and 6) fruiting. According to the method, the defect that traditional basswood edible mushrooms cannot be cultivated in a large-scale industrial mode is overcome, the cultivation period is short, and edible mushroom sporocarp is good in quality and sufficient in flavor.
Owner:随州菇鲜美农业发展有限公司

Frostless air handling unit and proportion-integration-differential control method thereof

The invention discloses a frostless air handling unit and a proportion-integration-differential control method of the frostless air handling unit. The frostless air handling unit comprises a circulating working return circuit and a controllable silicon power adjuster, wherein the circulating working return circuit is composed of a compressor assembly, a condenser, an electronic expansion valve and an evaporator assembly, the compressor assembly, the condenser, the electronic expansion valve and the evaporator assembly are sequentially connected along the refrigerating fluid flowing direction. When a calculation controller receives an outdoor temperature parameter transmitted by a temperature-humidity sensor and the temperature parameter is lower than 0 DEG C, the calculation controller carries out calculation according to received air temperature and humidity parameters, an air pressure parameter and an evaporator surface temperature parameter, controls the opening degree of the electronic expansion valve according to the calculation results, and adjusts evaporator surface temperature through increase or reduction of the opening degree of the electronic expansion valve. Meanwhile, the controllable silicon power adjuster judges an air suction superheat degree of a compressor through received compressor air suction temperature and air suction pressure, adjusts increase or reduction of electric heater power, and maintains the air suction superheat degree of the compressor to be kept in a preset value range. According to the frostless air handling unit and the proportion-integration- differential control method of the frostless air handling unit, the aim of maintaining safe and high-efficiency operation of the system is achieved.
Owner:宁波沃弗圣龙环境技术有限公司 +1

Special hot air nonwoven fabric for face masks and manufacturing method of special hot air nonwoven fabric for face masks

The invention provides a special hot air nonwoven fabric for face masks and a manufacturing method of the special hot air nonwoven fabric for face masks. The hot air nonwoven fabric is made of PE / PETsheath-core composite fiber of a concentric structure, wherein a sheath layer material of the PE / PET sheath-core composite fiber is PE; a core layer material is PET; the PE / PET sheath-core composite fiber comprises a first ingredient and a second ingredient; the first ingredient is PE / PET composite fiber with the thickness of 2 D, the length of 38 mm and the sheath-core ratio of 40 / 60; the secondingredient is PE / PET composite fiber with the thickness of 1.5 D, the length of 38 mm and the sheath-core ratio of 50 / 50; and the mass ratio of the first ingredient to the second ingredient is 2:8. The special hot air nonwoven fabric for face masks and the manufacturing method of the special hot air nonwoven fabric for face masks provided by the invention have the advantages that the prepared hotair nonwoven fabric has the good fluffy effect and good air permeability; when the special hot air nonwoven fabric is applied to face mask products, the wearing comfortable feeling is improved; the cooling feeling effect at the inner side of the face mask is also realized; the problems of sultry and damp feelings, allergy and the like generated when the weather is hot or the face masks are worn for a long time are solved; the manufacturing method is simple; the flexibility is high; and good development prospects are realized.
Owner:JIANGSU SHENGFANG NANO MATERIAL TECH CO LTD

Frost-less air-source heat pump hot water unit and proportional-integral-differential control method for same

The invention discloses a frost-less air-source heat pump hot water unit and a proportional-integral-differential control method for the same. The proportional-integral-differential control method includes performing computation according to received air temperature and humidity parameters, received air pressure parameters and received surface temperature parameters of an evaporator when outdoor temperature parameters which are transmitted by a temperature and humidity sensor and are received by a computation controller are lower than 0 DEG C, controlling the opening of an electronic expansion valve according to a computation result and regulating the surface temperature of the evaporator by means of increasing or reducing the opening of the electronic expansion valve so that the surface temperature of the evaporator is constantly higher than a frost formation point; and enabling a silicon-controlled power regulator to judge a suction superheat degree of a compressor according to received suction temperature and suction pressure of the compressor, increasing or reducing the power of an electric heater and maintaining that the suction superheat degree of the compressor only varies within a set value range. The frost-less air-source heat pump hot water unit and the proportional-integral-differential control method have the advantage that adjustment for the opening of the electronic expansion valve is matched with adjustment for the power of the electronic heater, so that the purpose of maintaining safe and efficient running of a system is achieved.
Owner:NANJING NORMAL UNIVERSITY +1

Solar power generation photovoltaic panel for greenhouse

The invention discloses a solar power generation photovoltaic panel for a greenhouse, and relates to the technical field of solar power generation. The solar power generation photovoltaic panel for the greenhouse comprises a mounting mechanism, a supporting rod is movably connected to the mounting mechanism through a limiting bolt, a limiting plate is movably connected to the top of the supportingrod through a rotating shaft, a main plate is fixedly connected to the top of the limiting plate, an adjusting ring is movably connected to the front surface of the limiting plate through a rotatingshaft, and an adjusting nut matched with the adjusting ring is movably connected to the supporting rod through a rotating shaft. The solar power generation photovoltaic panel for the greenhouse has the advantages that through the improvement of the mounting mechanism, a clamping device, a main plate and an external photovoltaic panel body, when the solar power generation photovoltaic panel is usedin the production of the greenhouse, the effective area of a photovoltaic assembly can be well adjusted according to actual situations to ensure that crops in the greenhouse can absorb enough sunlight, and the production efficiency of the crops is improved while the use difficulty is reduced.
Owner:山东嘉喆新能源科技有限公司
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