公开(公告)号：WO1997044719A1

公开(公告)日：1997-11-27

申请号：PCT/US1997008597

申请日：1997-05-22

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  KANN, Meng, Jeng

IPC: G05D16/20

CPC classification number: F04D27/02 ,  F04D27/0207

Abstract: A method for controlling working fluid surge in a centrifugal compressor (12, 14). According to the method, surge detection is accomplished by calculing the time rate of change of first and second compressor operating parameters; comparing the calculated time rates of change of the first and second compressor operating parameters with acceptable set points for the first and second compressor operating parameters, and if both calculated rates of change are greater than or equal to the respective set point rates of change, then effecting a change in the flow of fluid through the inlet valve to avoid the surge condition. In one embodiment of the invention, the discharge pressure (56) and change in current (60) drawn by the prime mover (18) are calculated and compared with reference set points to determine if the surge condition is present. In an alternate embodiment of the invention, the presence of a surge condition is determined by calculating and comparing discharge pressure (56) and discharge temperature (58) with reference set points.

Abstract translation: 一种用于控制离心压缩机（12,14）中的工作流体浪涌的方法。 根据该方法，通过计算第一和第二压缩机运行参数的时间变化率来实现浪涌检测; 将第一和第二压缩机运行参数的计算时间变化率与第一和第二压缩机运行参数的可接受设定点进行比较，以及如果两个计算的变化率都大于或等于相应的设定点变化率，则 影响通过入口阀的流体流动的变化，以避免浪涌状况。 在本发明的一个实施例中，计算排气压力（56）和由原动机（18）拉出的电流变化（60），并将其与参考设定点进行比较以确定是否存在喘振状况。 在本发明的一个替代实施例中，通过用参考设定点计算和比较排放压力（56）和排放温度（58）来确定浪涌状况的存在。

公开(公告)号：WO1997023707A1

公开(公告)日：1997-07-03

申请号：PCT/US1996018736

申请日：1996-11-22

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  LYON, Leland, H.

IPC: E21B21/00

CPC classification number: E21B21/002

Abstract: A device for use within the backhead of a down hole percussive drill, for removing debris from a drillhole, includes a flow control member in the drill backhead for inducing cyclonic flow of percussive fluid, to concentrate the heavier water and other matter away from the lighter percussive gases, a separator in the backhead that separates the water and other matter, passageways in the backhead for ejecting the separated water and other matter, a sealing member for sealing the backhead passageways against back flow of debris from the drillhole annulus, and an indexing member for positioning the separator so as to permit a pre-selection of flow amounts of removed water and other matter.

Abstract translation: 用于从钻孔中去除碎屑的井下冲击钻的后端中的装置包括在钻头后端中的流量控制构件，用于诱导冲击流体的气旋流，将较重的水和其它物质集中在较轻的位置 冲击气体，分离水和其他物质的后端中的分离器，用于喷射分离的水和其他物质的后端中的通道;密封构件，用于密封背部通道以防止来自钻孔环的碎屑的回流，以及索引 用于定位分离器的构件，以便允许预先选择去除的水和其它物质的流量。

公开(公告)号：WO1996035515A1

公开(公告)日：1996-11-14

申请号：PCT/US1995015354

申请日：1995-11-20

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  MUTTER, Troy, B. ,  SEITH, Warren, A.

IPC: B05B01/34

CPC classification number: A47L9/02 ,  B23Q11/0046 ,  B24B55/10

Abstract: A venturi nozzle (1) for high entrainment vacuum use for random orbital sander dust collection having a nozzle design which improves the nozzle jet (10) to promote a uniform velocity profile (7) across the diameter of the jet nozzle (1) as well as a thin shear layer (6) by providing a shallow angle nozzle (1) approach, a smooth transition flow into the nozzle throat (2) and an accurate nozzle departure radius (3).

Abstract translation: 用于高夹带真空的文丘里喷嘴（1）用于随机轨道砂光粉收集，其具有喷嘴设计，其改进喷嘴射流（10）以促进穿过射流喷嘴（1）的直径的均匀的速度分布（7） 作为薄剪切层（6），通过提供浅角喷嘴（1）的方法，流入喷嘴喉部（2）的平滑过渡流和精确的喷嘴离开半径（3）。

公开(公告)号：WO1996003583A1

公开(公告)日：1996-02-08

申请号：PCT/US1995008933

申请日：1995-07-17

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  LUTHI, Oscar

IPC: F04D07/04

CPC classification number: F04D7/04 ,  F04D29/448

Abstract: Deflecting vanes (26, 28, 30), confronting the blades of the impeller-inducer (14a), and fixed in the housing, inhibit the formation of a vortex upstream of the impeller-inducer (14a). Too, the vanes direct the recirculation flow back into the central zone of the pump. The impeller-inducer is force-fed by its own recirculation.

Abstract translation: 面向叶轮引导器（14a）的叶片并固定在壳体中的偏转叶片（26,28,30）抑制在叶轮诱导器（14a）上游的涡流的形成。 叶片太脏，导致再循环流回到泵的中心区域。 叶轮诱导器由其自身的再循环强制供给。

公开(公告)号：WO1996003196A1

公开(公告)日：1996-02-08

申请号：PCT/US1995008931

申请日：1995-07-17

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  LUTHI, Oscar

IPC: B01D33/82

CPC classification number: B01D33/82

Abstract: A rotary filter valve is provided with a variable restriction of the timing plate which minimizes bypass gas entering the vacuum system during emergence of the filter elements from the submerged condition.

Abstract translation: 旋转式过滤器阀具有定时板的可变限制，其使过滤元件从浸没状态出现期间最小化进入真空系统的旁路气体。

公开(公告)号：WO1996001921A1

公开(公告)日：1996-01-25

申请号：PCT/US1995008141

申请日：1995-06-29

Applicant: INGERSOLL-RAND COMPANY ,  PULP AND PAPER RESEARCH INSTITUTE OF CANADA

Inventor： INGERSOLL-RAND COMPANY ,  PULP AND PAPER RESEARCH INSTITUTE OF CANADA ,  ROY, Brian, P. ,  VAN LIEROP, Barbara ,  BERRY, Richard, M. ,  BARDSLEY, Donald, E.

IPC: D21C09/16

CPC classification number: D21C9/1057 ,  D21C9/10 ,  D21C9/163 ,  F01N1/089 ,  F01N3/06 ,  F01N2230/06 ,  F01N2270/02 ,  F01N2270/08 ,  F01N2450/20 ,  F01N2470/06 ,  F01N2470/24 ,  F01N2490/08

Abstract: A process is disclosed which leads to a substantial improvement in the efficiency of bleaching lignocellulosic and like materials with hydrogen peroxide. This has been achieved by reducing the rate and extent of non-productive decomposition of peroxide. The bleaching of lignocellulosic materials at increased temperatures and pressures accelerates the rate of pulp bleaching and the rate of peroxide decomposition. Conventional bleaching technology limits these non-productive reactions by including silicates or chelating agents in the bleaching solution. Here it is shown that a substantial part of the peroxide decomposition that occurs upon exposure to process equipment is decreased substantially by using an appropriate metallurgy. A bleaching vessel having at least a contact surface, i.e., a surface in contact with the processed pulp, constructed from zirconium, niobium, hafnium, tantalum or alloys thereof is described which limits peroxide decomposition. The use of zirconium, niobium, hafnium, tatalum or alloy thereof eliminates the requirement for silicate and other sequestering agents in the bleaching solution. This novel bleaching technology is used to improve the efficiency of alkaline peroxide with both conventional as well as with new high temperature lignocellulosic bleaching processes or processes which generate peroxide species under alkaline conditions.

Abstract translation: 公开了一种方法，其导致用过氧化氢漂白木质纤维素和类似材料的效率的显着改善。 这是通过降低过氧化物非生产性分解的速度和程度来实现的。 木质纤维素材料在升高的温度和压力下漂白加速了纸浆漂白速率和过氧化物分解速率。 常规漂白技术通过在漂白溶液中包含硅酸盐或螯合剂来限制这些非生产性反应。 这里表明，暴露于加工设备中发生的大部分过氧化物分解通过使用适当的冶金基本上降低。 描述了由锆，铌，铪，钽或其合金构成的至少具有接触表面即与加工纸浆接触的表面的漂白容器，其限制了过氧化物分解。 使用锆，铌，铪，钽或其合金消除了对漂白溶液中的硅酸盐和其它螯合剂的需求。 这种新颖的漂白技术用于提高碱性过氧化物的传统效率，以及在碱性条件下产生过氧化物质的新型高温木质纤维素漂白方法或工艺。

公开(公告)号：WO1995008664A1

公开(公告)日：1995-03-30

申请号：PCT/US1994010731

申请日：1994-09-21

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  MILLER, William, J.

IPC: D21C07/00

CPC classification number: D21C9/147 ,  D21C9/1026

Abstract: Pulp slurry of medium consistency is impregnated with oxygen gas and alkali, and agitated in a high shear mixer (12), under pressure, has the temperature thereof elevated, as well as the pH thereof, and is agitated for an extended time in contact mixer (14). The high shear mixer (12) has sources of slurry (8), alkali, oxygen gas (22) and steam (24) conducted thereto, and a pressurized vessel (16) receives the delignified product.

Abstract translation: 中等稠度的浆浆用氧气和碱浸渍，并在高剪切混合器（12）中在压力下搅拌，其温度升高，其pH值高，并在接触混合器中搅拌较长时间 （14）。 高剪切混合器（12）具有浆料（8）的来源，碱性物质，氧气（22）和蒸汽（24）），加压容器（16）接收脱木素产品。

公开(公告)号：WO1994026388A1

公开(公告)日：1994-11-24

申请号：PCT/US1994004962

申请日：1994-05-05

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  LUTHI, Oscar ,  ABDULMASSIH, Antoine, G. ,  MERCHEL, Frank, J., III

IPC: B01D33/06

CPC classification number: D21F3/083 ,  B01D33/067 ,  B01D33/073 ,  B01D33/37 ,  B01D33/466 ,  B01D33/74 ,  B01D33/742 ,  B01D2201/282 ,  B01D2201/38 ,  B30B9/20

Abstract: An anti-rewet deck is provided for press rolls (3) used to increase consistency of fibrous pulp sluryy from approximately 4 percent up to about 30 to 50 percent. This is accomplished by biasing the location of the drainage holes (140) in the roll shell to the forward edge of the drainage compartments within the roll shell. To avoid the necessity for handing of the rolls, a mechanism is provided for accomplishing the purposes of minimizing rewet at practical production rates by providing baffle plates (175, 177) which effectively orient the draining pattern in the desired direction. Such baffles can be permanently or removably installed once the desired handing of the rolls is determined.

Abstract translation: 为压榨辊（3）提供抗再润湿甲板，用于提高纤维纸浆的稠度约4％至约30％至50％。 这通过将辊壳中的排水孔（140）的位置偏置到辊壳内的排水隔室的前边缘来实现。 为了避免搬运辊的必要性，提供了一种机构，用于通过提供有效地将排水图案定向在所需方向的挡板（175,177）来实现在实际生产率下使再润湿最小化的目的。 一旦确定了所需的辊的搬运，这种挡板可以永久地或可移除地安装。

公开(公告)号：WO1994023848A1

公开(公告)日：1994-10-27

申请号：PCT/US1994004136

申请日：1994-04-14

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  YOUNG, Douglas ,  ABDULMASSIH, Antoine, G.

IPC: B07B01/22

CPC classification number: D21D5/026 ,  B01D29/356 ,  B01D29/78 ,  B01D29/86 ,  B01D29/908 ,  B01D2201/184 ,  B01D2201/287 ,  B07B1/20

Abstract: A hydrodynamic device for generating negative pressure excursions in a pulp slurry during fine screening, includes a plurality of half-foil members (123) disposed on a substantially cylindrical outer surface of a rotor (121). The rotor (121) is mounted within and co-axial with a substantially cylindrical screen (95) having a circumferentially continuous apertured zone to define an annular screening chamber (93) between the rotor (121) and the screen (95). The half-foil members (123) are collectively at least axially co-extensive with the apertured zone and have a leading edge which, also collectively, is inclined at a spiral angle relative to the axis of the rotor such that during rotation, the collective leading edge of the half-foil members conduct large particles downwardly through the screening chamber. A selection of hydrodynamic foil configurations is provided in order to adapt to a wide range of pulp types and screening conditions.

Abstract translation: 一种用于在精细筛选期间在纸浆中产生负压偏移的流体动力装置包括设置在转子（121）的基本上圆柱形的外表面上的多个半箔构件（123）。 转子（121）安装在具有周向连续有孔区域的基本上圆柱形的筛网（95）内并与其同轴，以在转子（121）和筛网（95）之间限定环形筛分室（93）。 所述半箔构件（123）与所述有孔区域共同至少轴向共同延伸并且具有前缘，所述前缘也共同地相对于所述转子的轴线以螺旋角倾斜，使得在旋转期间，所述集合 半箔构件的前缘使大颗粒向下通过筛分室。 提供了一系列流体动力学箔结构，以适应各种纸浆类型和筛选条件。

公开(公告)号：WO1994020725A1

公开(公告)日：1994-09-15

申请号：PCT/US1994001252

申请日：1994-02-03

Applicant: INGERSOLL-RAND COMPANY

Inventor： INGERSOLL-RAND COMPANY ,  FU, Chuen-Cheng ,  LAY, Warren, T.

IPC: E21B04/00

CPC classification number: B25D9/14 ,  E21B4/14

Abstract: A pressure sensitive valve (200) for a fluid-actuated percussive drill (10) includes passageways (44) for fluid flow to expose a valve surface to a burst of short-interval, high pressure fluid from a drive chamber (36) to cause early closing of the valve (200).

Abstract translation: 用于流体致动的冲击钻（10）的压敏阀（200）包括用于流体流动的通道（44），以将阀表面暴露于来自驱动室（36）的短间隔高压流体的爆发，从而使 早期关闭阀门（200）。