WO2002075266A1 - Adaptateur destine a l'installation d'une jauge de pression - Google Patents

Adaptateur destine a l'installation d'une jauge de pression Download PDF

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Publication number
WO2002075266A1
WO2002075266A1 PCT/KR2001/001577 KR0101577W WO02075266A1 WO 2002075266 A1 WO2002075266 A1 WO 2002075266A1 KR 0101577 W KR0101577 W KR 0101577W WO 02075266 A1 WO02075266 A1 WO 02075266A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure gauge
fluid
pressure
hole
hollow
Prior art date
Application number
PCT/KR2001/001577
Other languages
English (en)
Inventor
In-Koo Yoo
Original Assignee
Seah Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR10-2001-0013310A external-priority patent/KR100378717B1/ko
Priority claimed from KR2020010007009U external-priority patent/KR200238598Y1/ko
Application filed by Seah Co., Ltd. filed Critical Seah Co., Ltd.
Publication of WO2002075266A1 publication Critical patent/WO2002075266A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G01L19/0015—Fluidic connecting means using switching means

Definitions

  • the present invention relates to an adapter for installing a pressure gauge, which is inserted between a pressure pipe which fluid passes, and a pressure gauge that forms passage for a flow-through of fluid when the pressure gauge is connected.
  • the effect is to measure the fluid pressure while shutting off the passage. When the pressure gauge is removed for breakdown or other irregularities, fluid leakage is prevented.
  • a method is generally used, whereby an intermediate valve is installed onto the pressure pipe and then a pressure gauge is directly installed onto the intermediate valve.
  • a method may be used, whereby a simple adapter for installing a pressure gauge is installed to the intermediate valve, followed by installation of a pressure gauge thereto.
  • an intermediate valve with a tapering screw thread is fitted onto the branching part of a pressure pipe with a tapering screw thread, and then a pressure gauge is connected to the end of the intermediate valve.
  • an intermediate valve is generally used for connection of one pressure pipe to another, and this way the connection part of such a valve formed with a tapering screw thread poses difficulty in connecting with a pressure gauge ordinarily with a plane screw thread; and even if a tape is rolled over the screw thread of a pressure gauge in an effort to prevent leak, the thread in actual engagement will not be enough fully to stop leaking to ensure the safety of the plant.
  • the conventional pressure gauge has its needle heavily shaking at quick violent pressure changes due to turbulent processes of a plant; rendering difficult for pressure gauge reading.
  • an oil-filled pressure gauge is used where oil is instilled in the dial board to keep the needle, affected with resistance from the oil, from getting deformed or damaged at a sudden change of pressure. Use of such pressure gauges would raise production costs, and add to expenses for repair and maintenance.
  • the targets which the present invention is aimed to solve are such problems as listed above for providing an adapter, which automatically shuts off the pipe to stop leaking when taken off the pressure gauge for repair or for other reasons. It is designed to enhances connectivity wherein the passage can be automatically opened after the complete connection of a pressure gauge to the adapter; Thus protecting the needle of a gauge subject to sudden changes of pressure; and defends the gauge from steam damage.
  • the adapter of the present invention comprises:
  • connection section with said connection hole via a pipe-the inside of which has a hollow connected to a pressure pipe-and the outside of which is inserted into a pressure pipe for connection;
  • Fig. 1 is a sectional view of the adapter of the present invention.
  • Fig. 2 is an illustration of the adapter to show its action when a pressure gauge is connected with it.
  • Fig. 3 is a sectional view of the adapter as fitted with a diaphragm.
  • Fig.4 is an illustration of the adapter to show its action when fitted with a diaphragm.
  • Fig. 1 is the sectional view of an adapter of the present invention, separate from a pressure gauge, and Fig.2 is that of one connected with a gauge.
  • the adapter (A) of the present invention has a connection hole 20 in its upper part, and said connection hole 20 has a screw thread 22 formed on its inner circumferential surface to accept a pressure gauge 10 to be connected airtight by a screw. It also has a packing 23 on its bottom surface to accept the gauge 10 and keep it airtight.
  • connection hole 20 In the center of the bottom surface of said connection hole 20 a hole 21 is formed; a hollow 31 is formed and connected with said hole 21, and said hollow 31 is connected through with a pressure pipe 70, as the adapter is inserted in said pressure pipe 70 for connection.
  • a tapering screw thread 32 On the outer side of the connection section 30 forming said hollow 31 a tapering screw thread 32 is formed to meet, for screw connection, a tapering screw thread 71 formed on said pressure pipe 70.
  • the hollow 31 connected a disc 40, which slides upward and downward, has a projection 41 in the upper end for connection with, by insertion in, the hole 21, and has another projection 44 below for insertion in spring 60.
  • a groove for fluid inflow 42 is formed at the upper surface.
  • a filter chamber 52 At the inlet outlet of said hole for controlling flow velocity 51, there is a filter chamber 52, and a filter 54 abutting thereon, it is inserted firmly in said filter chamber 52.
  • a concave part 53 In the upper surface of said controller for flow velocity 50 is formed a concave part 53, where the lower end of spring 60 inserted in the lower projection 44 of said disc 40 is inserted.
  • the form of the filter chamber 52 of the inlet outlet of the hole for controlling flow velocity 51 helps enlarge the contact surface of the fluid which passes through the filter 54, thus raising the efficiency in removal of foreign substances which may be contained in the fluid in passage, and also preventing the hole controlling flow velocity 51 from getting blocked up.
  • the size and length of the hole for controlling flow velocity 51 is to be an important factor in prevention of any shock resulting from abrupt changes of the fluid pressure; its size is preferably 0.2mm ⁇ or less.
  • the present invention renders easy and safe the connection of a pressure gauge with a pressure pipe, whereby preventing fluid from leaking, and makes it possible to buffer the violent impact of a possible abrupt change of pressures, whereby allowing accurate measurement and management of pressure and protecting the gauge from damage even during possible violent changes in pressure.
  • the pressure gauge is protected from high-temperature steam without using supplementary apparatus, such as a siphon tube. No separate intermediate valve is required for connection of the gauge, and so fluid leak can be automatically prevented without separate manipulation at the time of replacement of the gauge, resulting in fast replacement or maintenance work.
  • the present invention provides reduction in material and construction costs since the present invention does not require installation of an intermediate valve. Since it does not require manipulation of opening and closing, the present invention provides simple handling without concerns for malfunctions. Since it does not need supplementary apparatus such as a siphon tube, the present invention provides reduction in cost, with an improvement in external appearance.
  • the present invention also enables precise process management, with reduction in maintenance and management expenses (including personnel expenses, and expenses of acquiring replacement pressure gauges). Due to its extremely small amount of outflow, the present invention can prevent accidents at the time of malfunction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

La présente invention concerne un adaptateur destiné à être monté entre une conduite de pression et une jauge de pression et permettant la formation d'un passage, lorsque la jauge de pression est raccordée à cet adaptateur, pour permettre de mesurer la pression du fluide mais fermer le passage, lorsque la jauge est retirée pour dysfonctionnement ou autre raison en vue de prévenir les fuites de fluide. L'adaptateur, consistant en un creux qui doit être connecté à la jauge de pression et également par une conduite avec un trou de connexion équipé d'une garniture d'un disque, qui a une projection formée pour se déplacer par glissement dans ce trou et venir s'insérer dans cette conduite. Il a également une entrée de fluide traversant l'espace situé au-dessus et autour de cette projection, ainsi qu'une garniture située sous cette projection et destinée à être mise en contact avec la surface supérieure de ce trou pour fermer cette conduite. Cet adaptateur comprend également un contrôleur de la vitesse d'écoulement qui, inséré hermétiquement pour fermer la partie inférieure du creux, a un trou pour vérifier la vitesse d'écoulement et porte des corps élastiques de telle manière qu'il peut protéger la jauge de pression en tempérant la pression du fluide lors de ses brusques changements. Le trou permettant de vérifier la vitesse d'écoulement est un trou très petit qui induit une réduction de la vitesse du fluide s'écoulant dans la jauge de pression. Il permet ainsi d'empêcher un brusque changement de l'aiguille dans la jauge de pression, et de prévenir tout dommage ou toute défaillance de la jauge de pression. En outre, même en cas de fuite du fluide due au dommage de la jauge de pression etc., seule une petite quantité de fluide est déchargée, ce qui prévient tout accident dû à la fuite du fluide. On peut également l'utiliser avec de la vapeur haute température sans tube plongeur ni autres dispositifs supplémentaires.
PCT/KR2001/001577 2001-03-15 2001-09-20 Adaptateur destine a l'installation d'une jauge de pression WO2002075266A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2001-0013310A KR100378717B1 (ko) 2001-03-15 2001-03-15 압력계 연결용 어댑터
KR2020010007009U KR200238598Y1 (ko) 2001-03-15 2001-03-15 압력계 연결용 어댑터
KRUM2001-0007009 2001-03-15
KR2001-0013310 2001-03-15

Publications (1)

Publication Number Publication Date
WO2002075266A1 true WO2002075266A1 (fr) 2002-09-26

Family

ID=27759777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/001577 WO2002075266A1 (fr) 2001-03-15 2001-09-20 Adaptateur destine a l'installation d'une jauge de pression

Country Status (1)

Country Link
WO (1) WO2002075266A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199771A1 (fr) * 2008-12-22 2010-06-23 Schneider Electric Industries SAS Dispositif de mesure d'une grandeur telle la pression à l'intérieur d'une cuve remplie d'un gaz ou d'un liquide
CN104280180A (zh) * 2013-07-09 2015-01-14 郑州椿长仪器仪表有限公司 虹吸管压力表
JP2016094033A (ja) * 2014-11-12 2016-05-26 ニッタ株式会社 テストコネクション付継手
JP2016094954A (ja) * 2014-11-12 2016-05-26 ニッタ株式会社 テストコネクション付継手
RU2660321C1 (ru) * 2017-09-15 2018-07-05 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" (ФГУП "ГосНИИАС") Устройство регистрации параметров быстропротекающих процессов

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6428527A (en) * 1987-07-23 1989-01-31 Smc Corp Manometer
US5612497A (en) * 1992-08-10 1997-03-18 Dow Deutschland Inc. Adaptor for monitoring a pressure sensor to a gas turbine housing
KR970045169U (ko) * 1995-12-30 1997-07-31 대우중공업주식회사 공기 압력 측정기용 어댑터
KR970059105U (ko) * 1997-08-30 1997-11-10 박종수 압력게이지 보호용 자동밸브장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6428527A (en) * 1987-07-23 1989-01-31 Smc Corp Manometer
US5612497A (en) * 1992-08-10 1997-03-18 Dow Deutschland Inc. Adaptor for monitoring a pressure sensor to a gas turbine housing
KR970045169U (ko) * 1995-12-30 1997-07-31 대우중공업주식회사 공기 압력 측정기용 어댑터
KR970059105U (ko) * 1997-08-30 1997-11-10 박종수 압력게이지 보호용 자동밸브장치

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199771A1 (fr) * 2008-12-22 2010-06-23 Schneider Electric Industries SAS Dispositif de mesure d'une grandeur telle la pression à l'intérieur d'une cuve remplie d'un gaz ou d'un liquide
FR2940431A1 (fr) * 2008-12-22 2010-06-25 Schneider Electric Ind Sas Dispositif de mesure d'une grandeur telle la pression a l'interieur d'une cuve remplie d'un gaz ou d'un liquide
CN104280180A (zh) * 2013-07-09 2015-01-14 郑州椿长仪器仪表有限公司 虹吸管压力表
CN104280180B (zh) * 2013-07-09 2016-06-29 郑州椿长仪器仪表有限公司 虹吸管压力表
JP2016094033A (ja) * 2014-11-12 2016-05-26 ニッタ株式会社 テストコネクション付継手
JP2016094954A (ja) * 2014-11-12 2016-05-26 ニッタ株式会社 テストコネクション付継手
RU2660321C1 (ru) * 2017-09-15 2018-07-05 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" (ФГУП "ГосНИИАС") Устройство регистрации параметров быстропротекающих процессов

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