公开(公告)号：US20240353044A1

公开(公告)日：2024-10-24

申请号：US18138724

申请日：2023-04-24

申请人： RICH FULL HARDWARE CO., LTD.

发明人： CHIA-HAN HSIEH

IPC分类号： F16L55/055 ,  F16L55/053

CPC分类号： F16L55/055 ,  F16L55/053

摘要： A water hammer absorption device is provided with a movable water plug inside a water hammer pipe; the both ends of the water hammer pipe are respectively connected with a joint and cover, where the joint is connected to a connecting pipe, and the cover closes the water hammer pipe, it is characterized in that the inside of the water hammer pipe opposite to the joint is provided with non-return diaphragm adapted to close the internal part of the water hammer pipe, the non-return diaphragm prevents the high-pressure air from leaking out, and the side of the water hammer pipe having the non-return diaphragm is closed through the cover to strengthen the airtightness of the internal space.

公开(公告)号：US12006926B1

公开(公告)日：2024-06-11

申请号：US16879965

申请日：2020-05-21

申请人： W. H. Barnett, Jr.

发明人： W. H. Barnett, Jr.

IPC分类号： F16K15/06 ,  F04B11/00 ,  F04B15/02 ,  F16L41/03 ,  F16L55/055 ,  E21B43/26

CPC分类号： F04B11/00 ,  F04B15/02 ,  F16L41/03 ,  F16L55/055 ,  E21B43/2607

摘要： The anti-cavitation device comprises a housing and valve assembly. A fluid end comprises one or more intake chambers, one or more exhaust chambers, a compression chamber, a plunger chamber, and one or more intake manifolds. The intake manifolds are fluidly connected to the intake chambers such that the intake manifolds are adapted to deliver the hydraulic fracturing fluid to the intake chambers. The intake chambers comprise intake valve assemblies adapted to regulate flow from the intake chambers to the compression chamber. One of the intake chambers comprises an anti-cavitation chamber positioned across from and co-planar with the plunger chamber. The anti-cavitation device is positioned within the anti-cavitation chamber. A method of reducing cavitation is provided, the method comprises the step of inserting the anti-cavitation device into the access opening of the fluid end. The anti-cavitation device may be used in existing, previously used, or new fluid ends.

公开(公告)号：US11920720B2

公开(公告)日：2024-03-05

申请号：US17321043

申请日：2021-05-14

申请人： Saudi Arabian Oil Company

发明人： Mohamed Ahmed Soliman ,  Ali Hamoud Hassan Alshehri

IPC分类号： F16L55/055 ,  F16K17/196 ,  F16L55/045 ,  F17D1/20 ,  E03B7/07 ,  F16K15/06 ,  F16K17/18

CPC分类号： F16L55/055 ,  F16K17/196 ,  F16L55/045 ,  F17D1/20 ,  E03B7/075 ,  F16K15/066 ,  F16K17/18

摘要： A water hammer mitigation system includes a branch connection with ends coupled to a main pipeline, where a first end connects at a surge point on the main pipeline and a second end fluidly connects to the main pipeline at a distal point. A bi-directional surge relief device is disposed on the branch connection, and is operable to move to a first open configuration to permit pipeline fluid within the main pipeline to flow through the branch connection when surge point pressure reaches a designated pressure. The device can also move to a second open configuration when surge point pressure reaches another designated pressure. The device is closeable when surge point pressure is between the designated pressures.

公开(公告)号：US20230160515A1

公开(公告)日：2023-05-25

申请号：US17779073

申请日：2021-04-13

申请人： CHINA THREE GORGES CORPORATION ,  CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH

发明人： Huichao DAI ,  Hao WANG ,  Jiazhen LI ,  Xinlei GUO ,  Yongxin GUO ,  Tao WANG ,  Hanqing ZHAO ,  Hui FU ,  Jiajia PAN

IPC分类号： F16L55/055 ,  F16K24/04 ,  F16K15/03

CPC分类号： F16L55/055 ,  F16K24/046 ,  F16K15/034

摘要： The present invention relates to a variable-flow-path air valve for water hammer prevention and a design method. The variable-flow-path air valve includes a valve body with a top provided with an air intake-exhaust port. A ball valve seat and a floating ball are arranged below the air intake-exhaust port. The valve body is provided with at least one swing check valve configured to be opened inward. The swing check valve includes: a swing valve disc connected to a valve body hinge, a variable-flow-path air inlet controlled by the swing valve disc to open and close, a device for limiting the opening degree of the swing valve disc, and a sealing device. In the present invention, the air valve takes in air through the air intake-exhaust port and the variable flow path, and discharges air only through the air intake-exhaust port.

公开(公告)号：US11112050B2

公开(公告)日：2021-09-07

申请号：US16504635

申请日：2019-07-08

申请人： Lennox Industries Inc.

发明人： Steve Schneider ,  Eric Perez ,  Aylan Him ,  Miguel Montemayor

IPC分类号： F16L55/055 ,  F25B49/02 ,  F24F1/36 ,  F24D19/10 ,  F24D3/18 ,  F25B39/04 ,  F25B30/02 ,  F24D17/02 ,  F04B49/06 ,  F04B49/20 ,  F24F140/30 ,  F24F11/54

摘要： One aspect, as provided herein, is directed to a multi-stage fluid control system for a fluid source heat pump system. This embodiment comprises compressors configured to operate as separate, heat exchange stages, condensers each being fluidly coupled to at least one of the compressors by refrigerant tubing and having intake ends coupled together by a fluid intake manifold. This embodiment further includes output conduits coupled to each of the condensers and that are couplable to a distal location. Further included is a modulating valve control system interposed the output conduits. The modulating valve control system is configured to stage a flow of fluid through the condensers based on a number of operating compressors.

公开(公告)号：US20180058620A1

公开(公告)日：2018-03-01

申请号：US15248759

申请日：2016-08-26

申请人： Chevron U.S.A. Inc.

发明人： Antonio Critsinelis ,  Sid Mebarkia ,  Meirong Huang ,  Brady Lee Kirchof ,  Lauren E. Reiners ,  Baha T. Tanju

IPC分类号： F16L55/05 ,  F16L55/055

CPC分类号： F16L55/05 ,  E21B43/01 ,  F16L55/055 ,  F16L57/00 ,  G01L1/00

摘要： Disclosed are processes and systems for preventing overpressurization of piping transporting fluid produced from a pressure source to a receiving facility in which the fluid passes through a high integrity pressure protection system (HIPPS). A relief device is provided in the piping in fluid communication with the HIPPS. In the event that fluid passing through the HIPPS during the valve closure time period has a property exceeding an activation property, the relief device is activated thereby allowing the fluid passing through the HIPPS during the valve closure time period to flow to a fluid containment volume. The fluid containment volume has sufficient volume such that upon the start of the closure of the valve in response to the pressure surge, a portion of the fluid passing through the HIPPS during the valve closure time period is absorbed by the fluid containment volume thereby lessening pressure increase in the piping.

公开(公告)号：US09885373B1

公开(公告)日：2018-02-06

申请号：US15290202

申请日：2016-10-11

申请人： HONEYWELL INTERNATIONAL INC.

发明人： Steve Abel ,  Matt McClure ,  Kellan Geck

IPC分类号： F16L55/04 ,  F15B1/24 ,  F16L55/05 ,  F16L55/055

CPC分类号： F15B1/24 ,  F15B2201/31 ,  F15B2201/411 ,  F16L55/04 ,  F16L55/041 ,  F16L55/053 ,  F16L55/055

摘要： A fluid accumulator includes a tank, a piston, and a valve. The piston is movably disposed within the tank and divides the tank volume into a first fluid volume and a second fluid volume. The valve is coupled to the tank and includes a valve body, a valve element, a valve spring, a piston contact element, and a load limiter spring. The valve element is disposed within the valve body and is movable between an open position and a closed position. The valve spring has a first spring constant and supplies a force to the valve element that urges the valve element toward the open position. The piston contact element is spaced apart from, and is movable relative to, the valve element. The load limiter spring engages the valve element and the piston contact element, and has a second spring constant that is greater than the first spring constant.

公开(公告)号：US08950365B2

公开(公告)日：2015-02-10

申请号：US13976771

申请日：2012-04-05

申请人： Naoaki Hirota

发明人： Naoaki Hirota

IPC分类号： F22D1/46 ,  F16L55/055 ,  F22B1/02 ,  F22B37/00 ,  F22B37/22 ,  F22D11/00 ,  G21D1/00

CPC分类号： F16L55/055 ,  F22B1/025 ,  F22B37/002 ,  F22B37/228 ,  F22D11/00 ,  G21D1/00 ,  Y10T137/4531

摘要： There are provided a generator internal pipe section that extends in the horizontal direction inside a steam generator; and a communication pipe section that is connected to the generator internal pipe section and is provided with a communication path, wherein one end of the communication path is connected to the pipe path at an upper end of a cross-section perpendicular to the flow direction of the cooling water in the pipe path and the other end of the communication path is positioned at the downside in the vertical direction in relation to one end of the communication path, and wherein one end side and the other end side of the communication path are connected at a position existing at the upside in the vertical direction in relation to one end.

摘要翻译： 在蒸汽发生器内部设置有沿水平方向延伸的发电机内管部分; 以及连通管部，其与所述发电机内管部连接并设置有连通路径，所述连通路径的一端在与所述连通路的流动方向垂直的截面的上端的上端连接到所述管路 管路中的冷却水和连通路径的另一端相对于连通路径的一端位于垂直方向的下侧，连通路径的一端侧和另一端侧连接 相对于一端在垂直方向上方存在的位置。

公开(公告)号：US20070068577A1

公开(公告)日：2007-03-29

申请号：US11425028

申请日：2006-06-19

申请人： Tadahiro OHMI ,  Nobukazu IKEDA ,  Kouji NISHINO ,  Masaaki NAGASE ,  Ryousuke DOHI ,  Ryutaro NISHIMURA

发明人： Tadahiro OHMI ,  Nobukazu IKEDA ,  Kouji NISHINO ,  Masaaki NAGASE ,  Ryousuke DOHI ,  Ryutaro NISHIMURA

IPC分类号： F16K31/36 ,  F16L55/055 ,  F16K47/02

CPC分类号： F16K47/02 ,  F16K47/023 ,  F16L55/043 ,  Y10T137/0324 ,  Y10T137/0379 ,  Y10T137/0396 ,  Y10T137/7761 ,  Y10T137/86389 ,  Y10T137/86461

摘要： A fluid passage is emergently-closed in a short time without causing a water hammer by an extremely simple device and operation. A water hammerless closing device includes an actuator operated valve provided in a fluid passage, an electro-pneumatic conversion device for supplying a 2-step actuator operating pressure Pa to an actuator operated-type valve, a vibration sensor removably secured to the pipe passage on the upstream side of the actuator operated-type valve, and a tuning box receiving a vibration detection signal Pr from the vibration sensor and delivering a control signal Sc to the electro-pneumatic conversion device for controlling the step operating pressure Ps′ of the 2-step actuator operating pressure Pa so that, with the control signal Sc being regulated, the electro-pneumatic conversion device outputs the 2-step actuator operating pressure Pa with the step operating pressure Ps′ capable of bringing the vibration detection signal Pr substantially to zero.

摘要翻译： 流体通道在短时间内紧密关闭，而不会通过非常简单的装置和操作造成水锤。 无水锤关闭装置包括设置在流体通道中的致动器操作阀，用于向致动器操作型阀提供2级致动器操作压力Pa的电动气动转换装置，可拆卸地固定到管道上的振动传感器 执行器操作型阀的上游侧和从振动传感器接收振动检测信号Pr的调谐箱，并将控制信号Sc传送到电动气动转换装置，以控制2- 步进致动器操作压力Pa，使得在控制信号Sc被调节的情况下，电动气动转换装置将能够使振动检测信号Pr基本上为零的步进操作压力Ps'输出2步致动器操作压力Pa。

公开(公告)号：US5816291A

公开(公告)日：1998-10-06

申请号：US737475

申请日：1996-11-18

申请人： Leif Johannesson

发明人： Leif Johannesson

IPC分类号： F04B11/00 ,  F16L55/055 ,  F16L55/04

CPC分类号： F04B11/0025 ,  F16L55/055 ,  Y10T137/7848 ,  Y10T137/7935

摘要： A shock absorber in a liquid conduit (4) is provided. The shock absorber comprises a closed liquid tank (10), which is partly filled with gas and has a joint means (11) connected to the conduit (4). Via the joint means, liquid can flow to and from the tank (10) for compressing and decompressing the gas. The joint means (11) comprises a check valve means which, in its forward direction, permits a substantially free liquid flow from the conduit (4) to the tank and, in its rearward direction, permits throttled liquid flow from the tank to the conduit.

摘要翻译： PCT No.PCT / SE95 / 00526 Sec。 371日期：1996年11月18日 102（e）1996年11月18日日期PCT提交1995年5月12日PCT公布。 公开号WO95 / 32387 日期：1995年11月30日提供液体导管（4）中的减震器。 减震器包括封闭的液体罐（10），其部分地填充有气体并且具有连接到导管（4）的接合装置（11）。 通过接合装置，液体可以流入和流出罐（10），用于压缩和减压气体。 接头装置（11）包括止回阀装置，其在其向前的方向上允许基本上自由的液体从管道（4）流到罐，并且在其向后的方向上允许节流的液体从罐流到管道 。