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    • 3. 发明专利
    • COOLING CONTROL FOR CULTIVATION HOUSE WITH FOG COOLING AND DEVICE THEREFOR
    • JP2000083490A
    • 2000-03-28
    • JP25714098
    • 1998-09-10
    • KUBOTA KK
    • TANIGUCHI MASAHIROONO MINORU
    • A01G9/24A01G25/02F24F5/00
    • PROBLEM TO BE SOLVED: To manifest the cooling effect that permits the year-round cropping, as the power consumption is reduced by controlling the ventilation fan and fog cooling corresponding to the cooling loads, for example, the amount of solar radiation, the outside air temperature, the outside air humidity and the like. SOLUTION: While the room temperature of the cultivation house is in the range that is controllable to the target cooling temperature only by forced ventilation, the ventilation fan is operated at a prescribed amount of the ventilation at a temperature higher than that at the start of ventilation. In the case where the temperature rises up to the range that is uncontrollable only by forced ventilation and requires the fog cooling operation, the fog cooling installation is operated at a prescribed fog injection rate at a temperature higher than the starting temperature for the fog cooling, and the operation is stopped when the temperature reduces down lower than the fog-cooling stopping temperature and/or when the humidity in the measuring chamber becomes lower than that at which the fog cooling is stopped.
    • 9. 发明专利
    • DRAINAGE DEVICE
    • JPH06316958A
    • 1994-11-15
    • JP10536593
    • 1993-05-06
    • KUBOTA KK
    • MIURA AKIOTANIGUCHI MASAHIRO
    • E02B8/00E03F5/22
    • PURPOSE:To facilitate drainage work and provide an economically advantageous drainage device by providing in the wall of a waterway a sluice gate, a drainage pump insertion hole through which a drainage pump can be taken in and out, a communication passage, and a delivery passage. CONSTITUTION:An inner water side 2 and an outer water side 3 separated by a wall 1 of waterway are connected with each other through a sluice gate 4, and there are provided in the wall 1 a drainage pump insertion hole 6 through which a drainage pump 5 can be put in and out, a communication passage 7 for connecting the insertion hole 6 and the inner water side 2, and a delivery passage 8 for delivering water delivered by the pump 5 to the outer water side 3. Next, when the water level on the side 2 is higher than that on the side 3, a door 4 is opened to allow the water to flow naturally from the side 2 to the side 3. If required, a drainage pump vehicle is brought onto the wall 1 and the pump 5 is inserted into the hole 6 to install it therein, so that the pump 5 is operated to forcibly discharge the water on the side 2 to the outer side 3 through the passage 8. As a result, drainage work can be facilitated and there is no need to build a pump site so that an economically advantageous drainage device can be obtained.
    • 10. 发明专利
    • SNOW PRODUCING MACHINE
    • JPH04302974A
    • 1992-10-26
    • JP6657891
    • 1991-03-29
    • KUBOTA KK
    • TANIGUCHI MASAHIROHIRAFUJI TAKEFUMIDOI YOSHIHIRO
    • F25C3/04
    • PURPOSE:To produce snow without use of an air compressor by a method wherein a nozzle ring is attached on an air outlet of a tubular snow producing machine main body in which a blower is installed, and the nozzle ring is provided with high-pressure water jet nozzles and water-snow production accelerator mixture jet nozzles. CONSTITUTION:When a blower 2 and pumps 7 and 10 of a snow producing machine main body 1 are operated, water drops 12 are blown from many high- pressure water jet nozzles 5 in the oblique forward direction and in the inward direction of the radius of a nozzle ring 4, and mixture liquid is blown from two or more mixture jet nozzles 6 in the oblique forward direction, that is, into cold air. Snow production accelerator contained in the mixture liquid serves as catalyst of ice crystal core formation and ice cores 13 are formed at higher temperatures than in former method. The water drops 12 are super-cooled down by cold air jet stream A, strike against the ice cores 13 and turn into water drops containing ice cores. The water drops containing ice cores exchange the latent heat with ambient air until they turns into ice-water mixture, thus snow-like crystals are produced and carried by the air jet stream A.