专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2002089799A STEAM BYPASS PIPING 失效
公开(公告)号：JP2002089799A
公开(公告)日：2002-03-27
申请号：JP2000283695
申请日：2000-09-19
申请人： HITACHI PLANT ENG & CONSTR CO
发明人： SHIBATA KUNIHIRO
IPC分类号： F17D1/06 , F24F1/00
摘要： PROBLEM TO BE SOLVED: To prevent steam hammering generated in steam piping. SOLUTION: The steam piping 2 raised on a steam header 1 is arranged with a steam main valve 3 for controlling the flow amount of ventilated steam, and provided with a small-diameter bypass pipe 4 so as to put the steam main valve between the bypass pipe 4. A minute quantity of steam is let flow to the steam piping through the bypass pipe, thereby preventing steam hammering at the time of ventilating steam.

2. 实用新型

JPS56157305U 失效
公开(公告)号：JPS56157305U
公开(公告)日：1981-11-24
申请号：JP5599180
申请日：1980-04-25
IPC分类号： F17D1/06 , F01K21/00 , F03G4/00 , F03G7/04

3. 实用新型

JPS5632720Y2 失效
公开(公告)号：JPS5632720Y2
公开(公告)日：1981-08-03
申请号：JP7573173
申请日：1973-06-26
IPC分类号： F16L9/18 , F01K7/22 , F16L59/14 , F16L59/147 , F17D1/06 , F22B37/00 , F22B37/10

4. 实用新型

JPS5633403U 失效
公开(公告)号：JPS5633403U
公开(公告)日：1981-04-01
申请号：JP11349479
申请日：1979-08-20
IPC分类号： F22B37/44 , F16L55/07 , F17D1/06 , F22B37/56

5. 发明专利

JPS4983915A 失效
公开(公告)号：JPS4983915A
公开(公告)日：1974-08-13
申请号：JP13182673
申请日：1973-11-26
IPC分类号： B67D7/02 , B67D7/78 , C03C17/00 , F17D1/06

6. 发明专利

JP4863838B2 Steam supply method according to the steam supply pipe 有权
公开(公告)号：JP4863838B2
公开(公告)日：2012-01-25
申请号：JP2006290838
申请日：2006-10-26
申请人：中国電力株式会社
发明人：浩司種岡
IPC分类号： F01K17/00 , F01D25/00 , F01D25/10 , F17D1/06
摘要： PROBLEM TO BE SOLVED: To solve a problem that steam cannot be smoothly supplied to facilities having a long steam supply pipe since not only there is a risk of condensation of steam in a middle of a supply pipe especially at a start of use but also drain resides during stop of supply to easily cause water hammer at start of use, if the steam supply pipe between a supply source and a supply destination is long. SOLUTION: In this method for supplying steam, a steam supply pipe including a warming up means is used. The warming up means feeds steam to the steam supply pipe 20 for warming up by gradually opening a steam supply source valve 23 or a steam flow control valve 24 divided in a plurality of steps from a closed condition to a partially opened condition with predetermined time intervals after opening an open/close valve 27 of a drain 26 with a steam supply destination valve 25 of the steam supply pipe 20 closed. COPYRIGHT: (C)2008,JPO&INPIT

7. 发明专利

JP2011069479A Check valve and steam supply system using the same 有权
标题翻译：检查阀和蒸汽供应系统
公开(公告)号：JP2011069479A
公开(公告)日：2011-04-07
申请号：JP2009223195
申请日：2009-09-28
申请人： Tlv Co Ltd , 株式会社テイエルブイ
发明人： MATSUKAWA NAOKI
IPC分类号： F16K15/06 , F17D1/06
摘要： PROBLEM TO BE SOLVED: To provide a check valve of a face closed type capable of closing a valve port while a valve element is face-abutted on the whole periphery of a valve seat during its closing and changing inherent characteristic of flow rate of the check valve.
SOLUTION: This check valve 10 has a structure constituted by providing the valve element 24 seated on the annular valve seat 23 provided in an outer peripheral edge part of the valve port 22 while it is face-abutted on the whole periphery of the valve seat 23 to close the valve port 22 and energize the valve element 24 onto a valve closing side by energizing force of an energizing means 25. The valve element 24 moves to leave the valve seat 23 against the energizing force of the energizing means 25 by pressure of fluid flowing in through the valve port 22 to open the valve port 22. This check valve 10 includes a protruding part 30 for controlling flow rate of passing fluid on a valve port 22 side of the valve element 24 while, compared to the area of a clearance A1 formed between a valve seat abutting part of the valve element 24 and the valve seat 23, the area of a clearance A2 formed between an inner face of the valve port 22 and the valve element is kept to be smaller when the valve element 24 moves to leave the valve seat 23.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够关闭阀口的封闭式止回阀，同时阀元件在其关闭期间在阀座的整个周边面对面并改变流量的固有特性的止回阀。解决方案：该止回阀10具有这样的结构，该结构是通过设置安装在设置在阀口22的外周缘部的环状阀座23上的阀元件24，阀座23关闭阀口22，并且通过激励装置25的作用力将阀元件24激励到阀关闭侧。阀元件24移动以克服通电装置25的通电力离开阀座23，由此通过阀口22流动的流体的压力打开阀口22.该止回阀10包括用于控制阀元件24的阀口22侧的通过流体的流量的突出部30，同时与该区域形成在阀元件24的阀座抵接部分与阀座23之间的间隙A1的间隙A2，形成在阀口22的内表面和阀元件之间的间隙A2的面积在va lv元件24移动离开阀座23.版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2003181399A APPARATUS FOR CLEANING INSIDE OF STEAM PIPE 审中-公开
公开(公告)号：JP2003181399A
公开(公告)日：2003-07-02
申请号：JP2001383474
申请日：2001-12-17
申请人： CENTRAL MOTOR CO LTD
发明人： SHIMADA YOICHI
IPC分类号： B08B9/02 , F16L55/07 , F17D1/06 , F24D1/02
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for cleaning the inside of a steam pipe to prevent corrosion of the inside of the steam pipe and equipment using steam. SOLUTION: The apparatus comprises a compressed dry air generator 4 capable of generating a compressed dry air supplied to the steam pipe A3, an air pipe 5 connecting the steam pipe A3 supplied with steam to the compressed dry air generator 4, a compressed air open-close valve 6 capable of switching whether to supply the compressed dry air generated by the compressed dry air generator 4 to the steam pipe A3 or not, and a steam valve 7 provided to the steam pipe A3 and capable of closing the steam pipe A3. COPYRIGHT: (C)2003,JPO

9. 发明专利

JPH10318430A PIPING DEVICE 失效
公开(公告)号：JPH10318430A
公开(公告)日：1998-12-04
申请号：JP14602697
申请日：1997-05-21
申请人： TOSHIBA CORP
发明人： ASAKURA DAISUKE , OISHI TSUTOMU , SHIOYAMA TSUTOMU
IPC分类号： F16K47/02 , F16K47/16 , F17D1/06
摘要： PROBLEM TO BE SOLVED: To effectively prevent generation of high frequency vibration compounding a higher order acoustic mode, in a pipe in the downstream of a steam valve. SOLUTION: In a part opposed to a valve element 3, a valve seat 4 is provided inside a steam valve. In connection to this valve seat 4, an insert pipe 5 is provided, a downstream pipe 6 is connected thereto. A constitution is formed by holding an equal diameter in an outlet of the valve seat 4 and an inlet of the insert pipe 5 and by holding an equal diameter in an outlet of the insert pipe 5 and an inlet of the downstream pipe 6. An internal diameter of the insert pipe 5 is gradually increased along the axial direction. By this insert pipe 5, a high frequency vibration in a pipe compounding a higher order acoustic mode is prevented.

10. 发明专利

JPH10196310A FLASHING METHOD FOR MAIN STEAM PIPE IN STEAM TURBINE EQUIPMENT 失效
公开(公告)号：JPH10196310A
公开(公告)日：1998-07-28
申请号：JP178597
申请日：1997-01-09
申请人： FUJI ELECTRIC CO LTD
发明人： TANAKURA NOBUYUKI
IPC分类号： F01D25/00 , F17D1/06
摘要： PROBLEM TO BE SOLVED: To simplify preparation and posterior works during flashing of a main steam pipe effected prior to trial run of a steam turbine at an installation site. SOLUTION: In case of a flashing work to clean the interior of a pipe through a blow of steam from a boiler against a main steam pipe 3 to interconnect a boiler and a steam turbine 2, prior to trial run of the steam turbine 2 installed at a site, the steam inlet 2a of a turbine casing 2a communicated to a main steam stop valve 4 and the pipe end of the main steam pipe are usually interconnected through a short steam pipe 8 with a flange, and when flashing of the main steam pipe 3 is effected, with the main steam stop valve 4 incorporated in the turbine casing 2a, the short steam pipe 8 is removed, an elbow type pipe coupling 9 for blowing is connected to the pipe end of the main steam pipe 3, and blowing steam 6 fed from the boiler to the main steam pipe 3 through a temporary exhaust pipe 7 connected to the pipe coupling 9 is discharged in the atmosphere.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式