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    • 2. 发明授权
    • Non-freezing liquid supply system
    • 非冷冻液体供应系统
    • US5445356A
    • 1995-08-29
    • US209981
    • 1994-03-11
    • Roger C. WalshDouglas W. Eggins
    • Roger C. WalshDouglas W. Eggins
    • E03B7/12F04B43/10F16L11/12F16K7/07
    • F16L11/121E03B7/12F04B43/10Y10T137/402
    • A system for pumping liquids that are subject to solidification in the line, uses a compressed gas as an expulsion medium for the liquid. A compound hose pipeline is used, having a variable volume gas chamber adjacent a transfer passage, extending the length of the line. The line may comprise an outer hose that provides an air annulus about a collapsible inner hose, through which the pumped liquid can flow. Air or other gas admitted to the annulus operates to expel the liquid from the inner hose, either upon the loss of pressurization of the liquid in the inner hose, or upon the application of adequate pressure within the gas annulus to discharge the liquid from the inner hose. A compartmented hose has a separating disphragm running the length of the hose, where admission of gas to one side of the diaphragm diminishes the adjoining chamber of the hose. When liquid is pumped, the diaphragm is displaced laterally, permitting full flow in the hose. The system may be self priming, using a source of vacuum to remove the air and expand the volume of the liquid transfer hose portion, to induce filling of the transfer flow portion of the hose or pipeline, followed by an emptying phase, by re-applying air pressure. The system can use piston or centrifugal type pumps. A gas compressor can serve as the sole pumping medium. This "frost-free" water service is suitable for domestic water supply to cottages and the like, and for sprinkler systems.
    • 用于泵送在管线中固化的液体的系统使用压缩气体作为液体的排出介质。 使用复合软管管道,其具有与传送通道相邻的可变体积的气室,延伸线的长度。 管线可以包括外软管,其围绕可折叠的内软管提供空气环,泵送的液体可以通过该软管流动。 进入环形空气或其他气体的作用是在内部软管中的液体失去加压或者在气体环空中施加足够的压力以将液体从内部的内部排出液体时,从内部软管排出液体 软管。 分隔的软管具有运行软管长度的分离单元,其中气体进入隔膜的一侧减小了软管的相邻室。 当液体被泵送时,隔膜横向移位,允许软管充分流动。 该系统可以是自吸式的,使用真空源去除空气并扩大液体输送软管部分的体积,以引起软管或管道的转移流动部分的填充,随后是排空阶段, 施加空气压力。 该系统可以使用活塞式或离心式泵。 气体压缩机可以作为唯一的泵送介质。 这种“无霜”的供水服务适用于别墅等的家庭用水和喷水灭火系统。
    • 4. 发明授权
    • Compound hose system
    • 复合软管系统
    • US5746255A
    • 1998-05-05
    • US365734
    • 1994-12-29
    • Roger C. WalshDouglas W. Eggins
    • Roger C. WalshDouglas W. Eggins
    • E03B7/12F04B43/10F16L11/12F16L9/18F16L55/04
    • E03B7/12F04B43/10F16L11/12F16L11/121F16L11/20
    • A frost-free water supply system drains down to avoid freeze-up during non-pumping periods, its operation being responsive to air pressure within the system. A compound hose used may have an inner hose part co-extruded with the outer hose. The inner hose portion is preferably of flattened section, which facilitates threading of the inner hose within the outer hose, when not co-extruded. The compound hose with a flattened inner section, when its air cavity is sealed at atmospheric pressure conditions, provides an inbuilt air cushion that can generate initial de-watering pressure as high as about 716 gms per square cm (10 psi). The elastic memory, due to its initial flattened shape, also contributes to the de-watering capability of the inner hose. One unepected result, upon draining the liquids, is an unusual "bump" in the residual pressure of the air trapped within the outer hose, whereby the inner hose is more thoroughly flattened and more completely de-watered. Natural or synthetic rubbers may be used, parcticularly for the inner parts. The sealed enclosure of the pipeline by way of the end-fittings when under atmospheric conditions, ensures that in the drained condition the entrapped air returns substantially to atmospheric pressure. As this state prevails for much of the time, the likelihood of air leakage is greatly diminished, while the adverse effects thereof are minimized.
    • 无霜水供水系统排水,以避免在非抽水期间冻结,其运行是响应系统内的空气压力。 使用的复合软管可以具有与外部软管共挤出的内部软管部分。 内软管部优选为扁平部分,当不共挤出时,其有助于内软管在外软管内的穿线。 当其空气腔在大气压力条件下被密封时,具有扁平内截面的复合软管提供内置的气垫,其可以产生高达约716gms /平方厘米(10psi)的初始脱水压力。 弹性记忆体由于其初始的扁平形状也有助于内软管的脱水能力。 在排出液体时,一个不理想的结果是在外部软管中捕获的空气的残余压力中的不寻常的“碰撞”,由此内部软管更彻底地变平并且更完全地脱水。 可以使用天然或合成橡胶,特别适用于内部部件。 在大气条件下,通过端接件,管道的密封外壳确保在排水状态下,夹带的空气基本上回到大气压力。 由于这种状况在很多时间内占主导地位,空气泄漏的可能性大大降低,而其不利影响被最小化。
    • 5. 发明授权
    • Liquid supply system
    • 液体供应系统
    • US5842839A
    • 1998-12-01
    • US502431
    • 1995-07-14
    • Roger C. WalshDouglas W. Eggins
    • Roger C. WalshDouglas W. Eggins
    • E03B7/12F04B43/10F16L11/12F04B17/00F04B43/08
    • E03B7/12F04B43/10F16L11/12F16L11/121
    • A liquid transfer system for liquids that are subject to solidification uses a pipeline, with compressed gas as the liquid displacement medium. The pipeline comprises a substantially rigid outer line and a flexible inner hose, forming with the outer line an intermediate interstitial zone along the inner hose; a check valve located adjacent each end of the inner hose provides uni-directional flow within the system. A gas compressor connected with the interstitial zone by way of a flow control selectively applies pressurized gas or vacuum to the zone. The three possible phases of operation comprise; a first phase, when vacuum is applied to the interstitial zone, to expand the inner hose and induce liquid from the source to substantially fill the inner hose; a second phase when gas pressure is applied to the interstitial zone, to compress the inner hose and expel the liquid toward the point of delivery. The first and second phases are repeatable, to provide cumulative delivery of the liquid. In the third phase, gas pressure is maintained within the interstitial zone to maintain the inner hose collapsed and substantially "dry" so as to prevent "freezing" within the inner hose. A second such pipeline adjoining the first pipeline, working in opposite phased relation, enables substantially continuous flow. The third, purging phase of operation is applied co-extensively to both the pipe-lines. The system can utilize interstitial gas to assist the prime mover on start-up. Liquids other than water can be pumped.
    • 用于固化的液体的液体转移系统使用管道,压缩气体作为液体置换介质。 该管道包括基本上刚性的外线和柔性内软管,与外线形成沿着内软管的中间间隙区; 位于内软管各端附近的止回阀在系统内提供单向流动。 通过流量控制与间隙区连接的气体压缩机选择性地将加压气体或真空施加到该区域。 三个可能的操作阶段包括: 第一阶段,当对间隙区域施加真空时,使内部软管膨胀并从源引起液体以基本上填充内部软管; 第二阶段,当气体压力施加到间隙区时,压缩内部软管并将液体排出到输送点。 第一和第二阶段是可重复的,以提供液体的累积递送。 在第三阶段,气体压力保持在间隙区内,以保持内部软管收缩并基本上“干燥”,从而防止在内部软管内“冻结”。 毗邻第一管道的第二个这样的管道以相反的相位关系工作,实现了基本连续的流动。 第三,清洗作业阶段同时适用于两条管线。 该系统可以利用间隙气体来辅助原动机启动。 可以泵送除水以外的液体。
    • 6. 发明授权
    • Liquid drainage system with pneumatic sensor
    • 带气动传感器的液体排液系统
    • US5584665A
    • 1996-12-17
    • US304930
    • 1994-09-13
    • Roger C. WalshDouglas W. Eggins
    • Roger C. WalshDouglas W. Eggins
    • E03B7/12F04B49/00
    • E03B7/12Y10T137/402
    • In a frost-free water supply system that drains down to avoid freezing, during non-pumping periods, operation of the system is responsive to pressure changes within the system. A pneumatic relay sensitive to changes in one of the fluid pressures operative in the system is located in a portion of the system subject both to water pressure and to the air pressure operating in the system, to provide a pneumatic signal that activates or de-activates one or more system components. One arrangement has a water line discharging into an animal watering bowl within a protected environment. The pneumatic relay is in pressure sensing relation with a localized portion of the water line that remains undrained when the major length of the hose is drained. The pneumatic relay subsequently senses a drop in water pressure, responsive to the re-filling of the bowl. The pneumatic relay is connected to a distant relay, to switch on the pump and recharge the water line, to re-supply the bowl. The relay also may control other system functions, such as reacting to a sharp local rise (or "bump") in pneumatic pressure that occurs in the system at the moment of closure of a float valve, to actuate a relay operating the water line drain valve, or even to switch off the pump. In another embodiment, a low voltage electric float switch located in a water bowl may be used to actuate a master solenoid, to switch on the water supply. A series of such bowls, each with its own float switch may be used, to achieve individual water supply to each bowl from a common, air-charged, frost-free water supply line. This arrangement generally would have line drain valves, to ensure line drainage and an absence of freze-up potential in the line segments between the bowls.
    • 在无霜水供水系统中,为了避免冻结,在非泵送期间,系统的运行响应系统内的压力变化。 对系统中操作的一种流体压力的变化敏感的气动继电器位于系统的一部分中,同时受到水压和在系统中运行的空气压力的作用,以提供激活或去激活的气动信号 一个或多个系统组件。 一种布置具有在受保护的环境内排放到动物浇水碗中的水管线。 当软管的主要长度排出时,气动继电器与水线的局部部分处于压力感应关系,该部分保持不排水。 气动继电器随后响应于碗的重新填充而感测到水压下降。 气动继电器连接到远距离的继电器,打开泵并对水线充电,以重新供应碗。 继电器还可以控制其他系统功能,例如在浮球关闭时在系统中发生的气动压力中的急剧局部上升(或“碰撞”),以致动作继电器操作水管线排水 阀门,甚至关闭泵。 在另一个实施例中,可以使用位于水碗中的低压电浮球开关来致动主螺线管,以接通供水。 可以使用一系列这样的碗,每个具有自己的浮子开关,以从普通的,充气的,无霜的供水管线中获得每个碗的单独供水。 这种布置通常将具有排水阀,以确保管道排水并且在碗之间的管线段中不存在压缩电位。