公开(公告)号：USRE30261E

公开(公告)日：1980-04-29

申请号：US893482

申请日：1978-04-04

申请人： Warren H. Brand

发明人： Warren H. Brand

IPC分类号： G05D7/01

CPC分类号： G05D7/0126 ,  Y10T137/2615 ,  Y10T137/2617

摘要： The preferred embodiment of the invention disclosed herein includes a main check valve responsive to the rate of flow of fluid to a demand system and a bypass valve metering the flow of fluid to a bypass system. In the closed position of the main check valve, the bypass valve is in a fully open position whereby a predetermined minimum flow from a pressure source is maintained; in an intermediate position of the main check valve responsive to the predetermined minimum rate of flow thereacross, the bypass valve is closed and remains closed from the intermediate position of the main check valve to the fully open position. Operation of the bypass valve is controlled by fluid pressure from the inlet side of the main check valve which acts on a piston associated with the bypass valve and the buildup of pressure is controlled by a pilot valve.

公开(公告)号：US4019527A

公开(公告)日：1977-04-26

申请号：US554401

申请日：1975-03-03

申请人： Warren H. Brand

发明人： Warren H. Brand

IPC分类号： F16K11/10 ,  F16K15/18 ,  F16K31/12 ,  G05D7/01 ,  G05D11/00

CPC分类号： G05D7/0126 ,  Y10T137/2642

摘要： The preferred embodiment of the invention disclosed herein includes a main check valve responsive to the rate of flow of fluid to a demand system and a bypass valve metering the flow of fluid to a bypass system. In the closed position of the main check valve, the bypass valve is in a fully open position whereby a predetermined minimum flow from a pressure source is maintained; in an intermediate position of the main check valve responsive to the predetermined minimum rate of flow thereacross, the bypass valve is closed and remains closed from the intermediate position of the main check valve to the fully open position. Operation of the bypass valve is controlled by fluid pressure from the inlet side of the main check valve which acts on a piston associated with the bypass valve and the buildup of pressure is controlled by a pilot valve.

摘要翻译： 本文公开的本发明的优选实施例包括响应于流体到需求系统的流量的流量的主止回阀和计量流体到旁路系统的旁通阀。 在主止回阀的关闭位置，旁通阀处于完全打开位置，从而保持来自压力源的预定最小流量; 在主止回阀的中间位置，响应于预定的最小流量，旁通阀关闭，并从主止回阀的中间位置保持关闭到完全打开位置。 旁通阀的操作由来自主止回阀的入口侧的流体压力控制，该主止回阀作用在与旁通阀相关联的活塞上，并且压力的积聚由先导阀控制。

公开(公告)号：US4130611A

公开(公告)日：1978-12-19

申请号：US748117

申请日：1976-12-06

申请人： Warren H. Brand

发明人： Warren H. Brand

IPC分类号： F16K11/00 ,  B05B1/16 ,  F16K3/32 ,  F22B5/00 ,  F22G5/00 ,  F22G5/12 ,  B01F3/04

CPC分类号： B05B1/1672 ,  F22G5/123 ,  Y10S261/13 ,  Y10T137/86734 ,  Y10T137/86799

摘要： An attemperator in the form of a steam desuperheater is disclosed herein and comprises a water tube adapted to be connected to a source of water under high pressure and a spray tube communicating with the water tube through a flow-control device for controlling the flow of water from the water tube to the spray tube. The spray tube is adapted to be located in a steam line for injecting cooling water into the steam when its temperature exceeds a predetermined temperature and accordingly is formed with one or more nozzles for injecting a spray of water travelling along an expanding swirling path into the steam, the water being atomized into small droplets which easily evaporate in the steam. Preferably, a plurality of nozzles are provided arranged in rows extending axially of the spray tube and the rows are circumferentially spaced apart. Also, the nozzles preferably communicate with the inside of the spray tube through a series of small ports. A piston movable axially within the spray tube controls the quantity of water discharged into the steam.

摘要翻译： 本文公开了一种蒸汽过热减温器形式的调温器，包括适于在高压下连接到水源的水管和通过用于控制水流的流量控制装置与水管连通的喷管 从水管到喷管。 喷射管适于位于蒸汽管线中，用于当其温度超过预定温度时将冷却水喷入蒸汽中，并且因此形成有一个或多个喷嘴，用于将沿着膨胀旋转通道行进的水喷射喷入蒸汽 ，水被雾化成容易在蒸汽中蒸发的小液滴。 优选地，多个喷嘴被设置成沿着喷射管的轴向延伸的行，并且行周向间隔开。 此外，喷嘴优选地通过一系列小的端口与喷射管的内部连通。 在喷射管内轴向移动的活塞控制排入蒸汽的水量。