Insulation resistance drop detector and method of detecting state thereof
    41.
    发明授权
    Insulation resistance drop detector and method of detecting state thereof 有权
    绝缘电阻跌落检测器及其状态检测方法

    公开(公告)号:US07005860B2

    公开(公告)日:2006-02-28

    申请号:US10959503

    申请日:2004-10-07

    IPC分类号: G01R31/00 G08B21/00

    摘要: An insulation resistance drop detector 50 and a method of detecting a state of malfunction of the detector 50 are provided. When open of a coupling capacitor Co or malfunction of a lowpass filter 53 is occurred, a time constant of the low pass filter 53 is decreased and a rising time of an output of the lowpass filter 53 against an output of a pulse signal P1 becomes shorter than that in a state of normal. Thereby, malfunction of the detector 50 can be detected based on the output of the filter 53 corresponding to change of frequency of the pulse signal P1.

    摘要翻译: 提供绝缘电阻降检测器50和检测器50故障状态的方法。 当耦合电容器Co断开或低通滤波器53发生故障时,低通滤波器53的时间常数减小,低通滤波器53的输出与脉冲信号P1的输出的上升时间成为 短于正常状态。 由此,可以基于与脉冲信号P 1的频率变化对应的滤波器53的输出来检测检测器50的故障。

    Semiconductor optical amplifier, and optical module using the same
    42.
    发明申请
    Semiconductor optical amplifier, and optical module using the same 有权
    半导体光放大器和使用其的光模块

    公开(公告)号:US20050025414A1

    公开(公告)日:2005-02-03

    申请号:US10851910

    申请日:2004-05-20

    CPC分类号: H01S5/026 H01S5/0262 H01S5/50

    摘要: The present invention provides a polarization dependency-free, gain-saturated high function semiconductor optical amplifier and optical module at industrially low cost. The gist of the present invention is to structurally separate the optical signal propagating waveguide from another optical waveguide which serves as a lasing optical cavity for optical amplification in such a manner that the two optical waveguides are formed in the same plane but not parallel to each other.

    摘要翻译: 本发明提供了一种无偏振无关,增益饱和的高功能半导体光放大器和光模块,工业成本低。 本发明的要点是将光信号传播波导与用作光放大的激光光学腔的另一光波导结构地分开,使得两个光波导形成在同一平面上但不彼此平行 。

    Mine cooling power recovery system
    45.
    发明授权
    Mine cooling power recovery system 失效
    矿山冷却回收系统

    公开(公告)号:US4991998A

    公开(公告)日:1991-02-12

    申请号:US432902

    申请日:1989-11-07

    CPC分类号: E21F3/00 F02B2075/027

    摘要: A mine cooling power recovery system wherein a low-pressure slurry pump for charging the mud slurry produced in a mine into a pressure changeover feed chamber is arranged in parallel to a warm water charging low-pressure pump and each of outlets of the two pumps has a changeover valve so that a single power recovery system pumps up both the mud slurry and a warm water out of the mine. A slurry sedimentation tank may be provided on the ground surface.

    摘要翻译: 一种矿井冷却功率回收系统,其中将用于将在矿井中产生的泥浆淤浆装入压力转换进料室的低压浆料泵与热水充注低压泵并联布置,两个泵的每个出口具有 一个转换阀,使得单个动力回收系统将泥浆和温水从矿井中抽出。 可以在地面上设置淤浆沉淀池。

    Float of slurry pressure feeding system
    46.
    发明授权
    Float of slurry pressure feeding system 失效
    泥浆压力输送系统浮子

    公开(公告)号:US4387595A

    公开(公告)日:1983-06-14

    申请号:US250665

    申请日:1981-04-03

    IPC分类号: B65G53/30 F04F1/14 G01F23/06

    CPC分类号: F04F1/14

    摘要: A float of a system for pressure feeding of slurry including a main body in the form of a bellows having a liquid and a gas sealed therein. The float has an apparent specific gravity which may vary depending on the value of pressure of a slurry or a driving liquid, whereby the slurry can be continuously fed from at least one slurry supply chamber by a driving liquid under high pressure to a desired destination.

    摘要翻译: 用于压力供给浆料的系统的浮子,包括具有液体和气体密封的波纹管形式的主体。 浮子具有明显的比重,其可以根据浆料或驱动液体的压力值而变化,由此浆料可以通过高压下的驱动液体从至少一个浆料供给室连续供给到期望的目的地。

    Control system of apparatus for transporting slurry
    47.
    发明授权
    Control system of apparatus for transporting slurry 失效
    运输浆料的设备控制系统

    公开(公告)号:US4231686A

    公开(公告)日:1980-11-04

    申请号:US72672

    申请日:1979-09-05

    IPC分类号: B65G53/30 B65G53/66

    CPC分类号: B65G53/30

    摘要: A control system for an apparatus for hydraulically transporting sedimentation prone slurry containing pulverized or powdered solid material mixed with water. A pipeline resistance of a slurry transport pipe at a proper location is detected by varying the flow rate of the slurry at the starting point of slurry transportation, and the critical flow velocity for slurry sedimentation is determined by using the pipeline resistance. The slurry is economically transported at the flow velocity above the critical flow velocity.

    摘要翻译: 用于液体输送含有粉碎或粉末状固体材料与水混合的沉降倾向浆料的装置的控制系统。 通过改变浆料运输起点处的浆料流速来检测浆料输送管道在合适位置处的管道阻力,通过使用管道阻力确定淤浆沉降的临界流速。 浆料以高于临界流速的流速经济地输送。

    Horizontal type hydrohoist
    48.
    发明授权
    Horizontal type hydrohoist 失效
    水平式水力搅拌机

    公开(公告)号:US3938912A

    公开(公告)日:1976-02-17

    申请号:US447357

    申请日:1974-03-01

    摘要: There is disclosed a horizontal type hydrohoist, in which slurry is forced to feed under lower pressure into feed pipes which are connected to a transport pipeline at their one ends and to a high pressure clear water pump at the others, said pump being adapted to deliver clear water under a high pressure, after which clear water is transferred under a high pressure through said feed pipe from said high pressure clear water pump, thereby transferring said slurry. This hydrohoist system presents the provision of means for preventing mixing and its spreading at the boundary portion between slurry and water within the feed pipes. More particularly, a separator which is designed not to rotate during the transfer is inserted in the aforesaid boundary portion in a manner that the separator may be transferred together with fluid, thus preventing the mixing of water with slurry as well as the resultant spreading thereof. According to a further aspect of the invention, at the completion of the slurry transfer under a high pressure, the separator is caused to be gradually slowed down to stop for the purpose of obviating a water hammer phenomenon within the pipings. In addition, after the removal of the slurry remaining around the separator by using a high pressure water, the feeding of the high pressure water is interrupted, thereby preventing mixing and its spreading at the boundary portion of water with slurry at the time of the subsequent introduction of slurry under lower pressure.

    摘要翻译: 公开了一种水平型水力搅拌器,其中迫使浆料在较低压力下进料到在其一端连接到运输管线的进料管中,并在另一端连接到高压清水泵,所述泵适于输送 在高压下清水,之后通过所述高压清水泵通过所述进料管在高压下将澄清的水转移,从而转移所述浆料。 该水驱系统提供了防止混合和在进料管内的浆料和水之间的边界部分扩散的装置。 更具体地说,在转移期间设计成不转动的分离器以分离器可与流体一起转移的方式插入上述边界部分中,从而防止水与浆料的混合以及由此产生的扩散。 根据本发明的另一方面,在高压下的浆料转移完成时,为了避免管道内的水击现象,使隔膜逐渐减速停止。 此外,在通过使用高压水除去残留在隔板周围的浆料之后,中断高压水的供给,从而防止混合,并在随后的浆料中在浆料的边界部分扩散 在较低压力下引入浆料。