PROCEDE POUR LE MAINTIEN DE LA QUALITE DU MANTEAU NEIGEUX D'UNE INSTALLATION COUVERTE DE SPORT DE GLISSE, ET INSTALLATION POUR LA MISE EN OEUVRE D'UN TEL PROCEDE
    1.
    发明申请
    PROCEDE POUR LE MAINTIEN DE LA QUALITE DU MANTEAU NEIGEUX D'UNE INSTALLATION COUVERTE DE SPORT DE GLISSE, ET INSTALLATION POUR LA MISE EN OEUVRE D'UN TEL PROCEDE 审中-公开
    在室内冬季运动场馆保持雪覆盖质量的方法,以及实施一种此类方法的设施

    公开(公告)号:WO2005106355A1

    公开(公告)日:2005-11-10

    申请号:PCT/FR2005/050265

    申请日:2005-04-20

    Abstract: La présente invention concerne un procédé pour maintenir la qualité du manteau neigeux (3) couvrant la surface d’une piste (2) d’une installation couverte de ski ou autre sport de glisse, laquelle installation comprend - un hall (1) isolé thermiquement recouvrant ladite piste (2), - des moyens de production de neige (4), et - des moyens (5) de régulation de la température de l’air ambiant au sein dudit hall (1). Le procédé conforme à l’invention consiste à faire varier la température de l’air ambiant du hall (1) selon des cycles réguliers ou sensiblement réguliers, par le contrôle des moyens de régulation de la température (5), entre : - une première température T1 (de préférence légèrement positive comprise entre 1 et 5° C), adaptée pour faire subir une fonte partielle superficielle au manteau neigeux (3), laquelle température T1 est maintenue pendant un temps t1 inférieur au temps nécessaire à la fonte totale du manteau neigeux (3), et - une seconde température T2 (de préférence négative, comprise entre -10 et -2° C), adaptée pour la fabrication de la neige par la mise en oeuvre des moyens de production correspondants (4), laquelle température T2 est maintenue par un temps t2 durant lequel une quantité suffisante de neige est fabriquée pour renouveler celle fondue par le temps t1 . La période des cycles de température est avantageusement de l’ordre de 24 heures.

    Abstract translation: 本发明涉及一种在用于滑雪或练习其他冬季运动的室内设施中将雪盖(3)的质量保持在滑雪道(2)的表面上的方法,其特征在于,所述设备包括:绝热屋(1) ),用于调节大厅(1)内的环境空气的温度的装置(5),其包括滑雪道(2),积雪装置(4)。 本发明的方法包括:使用温度调节装置(5)改变大厅(1)中的环境空气的温度,并且规则地或基本上是常规的循环,第一温度T1优选地稍微为正,在1 和5℃,使得积雪覆盖物(3)的表面部分熔化,所述温度(T1)保持时间t1小于积雪融化所需的时间; 和第二温度T2,其优选为负的10至2℃,使得相应的生产装置(4)产生雪,所述温度(T2)保持一段时间t2,在此期间,足够的积雪 是为了补充在t1期间融化的雪而产生的。 温度循环的长度优选为24小时左右。

    FALLING FILM EVAPORATOR
    2.
    发明申请
    FALLING FILM EVAPORATOR 审中-公开
    降膜蒸发器

    公开(公告)号:WO2008080085A2

    公开(公告)日:2008-07-03

    申请号:PCT/US2007/088605

    申请日:2007-12-21

    CPC classification number: F25B39/028 F25B2339/0242 F28D3/02

    Abstract: Falling film and hybrid falling film evaporators are provided for use in a two-phase refrigeration system or process system. The evaporator includes a shell having an upper portion, a lower portion, and a tube bundle having tubes extending substantially horizontally in the shell. A hood disposed over the tube bundle has an upper end adjacent the upper portion above the tube bundle, the upper end having opposed substantially parallel walls extending toward the lower portion, the walls terminating at an open end opposite the upper end. Once liquid refrigerant or liquid refrigerant and vapor refrigerant is deposited onto the tube bundle, the substantially parallel walls of the hood substantially prevent cross flow of refrigerant vapor or liquid and vapor between the tubes of the tube bundle. A flow distributor disposed adjacent the open end between the hood and the shell modifies the refrigerant flow, providing more uniform refrigerant flow distribution.

    Abstract translation: 提供下降膜和混合降膜蒸发器用于两相制冷系统或过程系统中。 蒸发器包括具有上部,下部和具有在壳中基本水平延伸的管的管束的壳体。 设置在管束上方的罩具有邻近管束上方的上部的上端,上端具有朝向下部延伸的相对的基本平行的壁,壁终止于与上端相对的开口端。 一旦液体制冷剂或液体制冷剂和蒸气制冷剂沉积到管束上,则罩的基本上平行的壁基本上防止制冷剂蒸汽或管束的管之间的液体和蒸气的交叉流动。 设置在罩和壳体之间的开口端附近的流动分配器改变制冷剂流动,从而提供更均匀的制冷剂流动分布。

    CHILLER OR HEAT PUMP WITH A FALLING FILM EVAPORATOR AND HORIZONTAL OIL SEPARATOR
    3.
    发明申请
    CHILLER OR HEAT PUMP WITH A FALLING FILM EVAPORATOR AND HORIZONTAL OIL SEPARATOR 审中-公开
    具有薄膜蒸发器和水平油分离器的冷却器或热泵

    公开(公告)号:WO2013147931A1

    公开(公告)日:2013-10-03

    申请号:PCT/US2012/062741

    申请日:2012-10-31

    CPC classification number: F25B43/02 F25B1/047 F25B31/004 F25B2400/23

    Abstract: A refrigerant circuit using a vapor compression cycle, the circuit usable for air conditioning, refrigeration or heat pump purposes. The circuit includes a lubricated compressor connected to an oil separator vessel separate from the compressor, a falling film or hybrid falling film evaporator and a condenser. The oil separator vessel extends substantially horizontally. The oil separator vessel is separated into a primary space and a secondary space by a filter pad configured to substantially remove entrained oil droplets of about 5 µm and larger from the refrigerant entering the oil separator vessel. The primary space is in fluid connection with a discharge of the compressor. The secondary space is in fluid connection with an inlet of the condenser. The circuit has an oil entrainment flow discharge of lubricant from the compressor of at least about two percent by mass relative to refrigerant flow.

    Abstract translation: 使用蒸汽压缩循环的制冷剂回路,可用于空调,制冷或热泵目的的回路。 电路包括连接到与压缩机分离的油分离容器的润滑压缩机,降膜或混合降膜蒸发器和冷凝器。 油分离器基本水平地延伸。 油分离器容器通过过滤垫分离成一次空间和二次空间,该过滤垫构造成基本上从进入油分离器的制冷剂中除去约5μm以上的夹带油滴。 主要空间与压缩机的排放流体连通。 二次空间与冷凝器的入口流体连接。 该回路具有相对于制冷剂流量至少约2质量%的来自压缩机的润滑剂的油夹带流量排出。

    MOTOR COOLING SYSTEM
    5.
    发明申请
    MOTOR COOLING SYSTEM 审中-公开
    电机冷却系统

    公开(公告)号:WO2012082592A1

    公开(公告)日:2012-06-21

    申请号:PCT/US2011/064359

    申请日:2011-12-12

    Abstract: A cooling system provided for a motor powering a compressor in a vapor compression system. The cooling system includes a housing enclosing the motor and a cavity located within the housing. A fluid circuit has a first connection with the housing configured to provide a liquid or two phase cooling fluid to the motor. The two phase cooling fluid is separable into a vapor phase portion and a liquid phase portion. The fluid circuit further has a second connection with the housing to remove cooling fluid in fluid communication with the fluid circuit. The cooling fluid conveyed through the second connection is two phase cooling fluid. The fluid circuit further has a third connection with the housing for receiving and circulating in the cavity the vapor phase portion conveyed through the second connection.

    Abstract translation: 一种用于为蒸汽压缩系统中的压缩机供电的电动机的冷却系统。 冷却系统包括封闭马达的壳体和位于壳体内的空腔。 流体回路具有与壳体的第一连接,该壳体被配置为向马达提供液体或两相冷却流体。 两相冷却流体可分离成气相部分和液相部分。 流体回路还具有与壳体的第二连接,以移除与流体回路流体连通的冷却流体。 通过第二连接输送的冷却流体是两相冷却流体。 流体回路还具有与壳体的第三连接,用于在空腔中接收和循环通过第二连接输送的气相部分。

    FALLING FILM EVAPORATOR
    7.
    发明申请

    公开(公告)号:WO2006044448A3

    公开(公告)日:2006-04-27

    申请号:PCT/US2005/036658

    申请日:2005-10-12

    Abstract: A falling film evaporator is provided for use in a two-phase refrigeration system or process system. The evaporator (80, 280) includes a shell (100) having an upper portion (102), a lower portion (104), and a tube bundle (106) having tubes extending substantially horizontally in the shell (100). A hood (112) is disposed over the tube bundle (106), the hood (112) having an upper end (114) adjacent the upper portion (102) above the tube bundle (106), the upper end (114) having opposed substantially parallel walls (116) extending toward the lower portion (104), the walls terminating at an open end (118) opposite the upper end (114). Once liquid refrigerant (120) or liquid refrigerant (120) and vapor refrigerant is deposited onto the tube bundle (106), the substantially parallel walls (116) of the hood (112) substantially prevent cross flow of refrigerant vapor or liquid and vapor between the tubes of the tube bundle (106).

    VARIABLE FREQUENCY GENERATOR POWER SUPPLY FOR CENTRIFUGAL CHILLERS
    8.
    发明申请
    VARIABLE FREQUENCY GENERATOR POWER SUPPLY FOR CENTRIFUGAL CHILLERS 审中-公开
    用于离心式冷冻机的可变频率发电机电源

    公开(公告)号:WO2013020034A2

    公开(公告)日:2013-02-07

    申请号:PCT/US2012/049490

    申请日:2012-08-03

    Abstract: A generator system is operated at variable speeds to provide power to a plurality of motors. The motors are connected to the generator system through a common electrical bus and a disconnect device. The motors each drive a compressor in a chiller system. The chiller system includes a speed and control algorithm, and a data collection network to obtain operating parameters from the associated chiller system. A control system determines a number of compressors to operate and manages the loads of the chiller systems, and determines an operating frequency of the generator required to obtain an operating speed of the motors to maintain a desired temperature of the chiller system.

    Abstract translation: 发电机系统以可变速度操作以向多个电动机提供动力。 电动机通过公共电气总线和断开装置连接到发电机系统。 电动机每个都在冷却器系统中驱动压缩机。 冷却器系统包括速度和控制算法,以及从相关联的冷却器系统获得操作参数的数据收集网络。 控制系统确定多个压缩机来操作和管理冷却器系统的负载,并且确定获得电动机的运行速度所需的发电机的工作频率以保持冷却器系统的期望温度。

    CAPACITY CONTROL SYSTEM AND METHOD FOR CENTRIFUGAL COMPRESSOR
    9.
    发明申请
    CAPACITY CONTROL SYSTEM AND METHOD FOR CENTRIFUGAL COMPRESSOR 审中-公开
    容量控制系统和离心压缩机的方法

    公开(公告)号:WO2012177582A2

    公开(公告)日:2012-12-27

    申请号:PCT/US2012/043047

    申请日:2012-06-19

    CPC classification number: F04D27/0261 F04D27/0253

    Abstract: A system and method for controlling compressor capacity while maintaining compressor stability includes providing a compressor and a flow reduction device for controlling flow of refrigerant through the compressor; measuring suction pressure and discharge pressure of the compressor; calculating a compressor head factor based on the suction discharge pressures; calculating the speed of sound in the refrigerant; calculating the tip speed of the impeller divided by the speed of sound; calculating the tip speed of the impeller at the minimum Mach number; calculating a multiplier of speed increase as a function of the flow reduction device based on an actuator feed-back signal; determining a minimum rotational speed at which the compressor may operate free from a surge condition; and controlling a rotational speed of the compressor above the minimum rotational speed.

    Abstract translation: 一种用于在保持压缩机稳定性的同时控制压缩机容量的系统和方法包括提供压缩机和流量减小装置,用于控制制冷剂通过压缩机的流量; 测量压缩机的吸入压力和排出压力; 基于吸入排出压力计算压缩机头部因数; 计算制冷剂中的声速; 计算叶轮的叶尖速度除以声速; 以最小马赫数计算叶轮的叶尖速度; 基于执行器反馈信号计算作为流量减小装置的函数的速度增加的乘数; 确定压缩机可以在没有浪涌状态的情况下操作的最小转速; 以及控制压缩机的转速高于最小转速。

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