KR20030074743A - 개량형 압력식 유량제어장치 - Google Patents
개량형 압력식 유량제어장치 Download PDFInfo
- Publication number
- KR20030074743A KR20030074743A KR10-2003-7009876A KR20037009876A KR20030074743A KR 20030074743 A KR20030074743 A KR 20030074743A KR 20037009876 A KR20037009876 A KR 20037009876A KR 20030074743 A KR20030074743 A KR 20030074743A
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- Prior art keywords
- flow rate
- pressure
- orifice
- fluid
- critical
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7759—Responsive to change in rate of fluid flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7761—Electrically actuated valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Flow Control (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims (5)
- 유량제어용 오리피스에 유체를 통과시킬 때 오리피스의 상류측 압력(P1)과 오리피스의 하류측 압력(P2)을 이용하여 오리피스를 통과하는 유체유량(Qc)을 QC=KP2 m(P1-P2)n(K는 비례정수, m과 n은 정수)에 의해 연산하는 것을 특징으로 하는 개량형 압력식 유량제어장치.
- 유량제어용 오리피스와, 오리피스의 상류측 배관에 설치한 컨트롤밸브와, 오리피스와 컨트롤밸브 사이에 설치하여 상류측 압력(P1)을 검출하는 상류측 압력센서와, 오리피스의 하류측 배관에 설치하여 하류측 압력(P2)을 검출하는 하류측 압력센서와, 상류측압력(P1)과 하류측 압력(P2)으로부터 연산유량(Qc)을 QC=KP2 m(P1-P2)n(K는 비례정수, m과 n은 정수)에 의해 연산하는 유량연산수단과, 하류측에 유체를 설정유량(Qs)으로 공급하도록 지령하는 유량설정수단과, 설정유량(Qs)과 연산유량 (Qc)의 유량차(ΔQ)를 연산하는 감산수단과, 상기 유량차(ΔQ)를 제로로 하도록 컨트롤밸브를 개폐제어하는 구동부로 구성되고, 하류측 배관에 공급되는 유체의 유량을 설정유량(Qs)으로 제어하는 것을 특징으로 하는 개량형 압력식 유량제어장치.
- 제2항에 있어서, 상기 오리피스로부터 유출되는 유체의 속도가 음속보다 작은 상태에 있는 비임계조건 하에서 작동하는 것을 특징으로 하는 개량형 압력식 유량제어장치.
- 유량제어용 오리피스와, 오리피스의 상류측 배관에 설치한 컨트롤밸브와, 오리피스와 컨트롤밸브 사이에 설치하여 상류측 압력(P1)을 검출하는 상류측 압력센서와, 오리피스의 하류측 배관에 설치하여 하류측 압력(P2)을 검출하는 하류측 압력센서와, 상류측 압력(P1)과 하류측 압력(P2)의 압력비에 의해서 오리피스로부터 유출되는 유체가 임계조건(음속영역)에 있는지의 여부를 판단하는 임계조건 판단수단과, 비임계조건에서는 상류측 압력(P1)과 하류측 압력(P2)으로부터 연산유량(Qc)을 QC=KP2 m(P1-P2)n(K는 비례정수, m과 n은 정수)에 의해 연산하는 비임계유량 연산수단과, 임계조건에서는 상기 연산유량(Qc)을 Qc=KP1(K는 비례정수)에 의해 연산하는 임계유량 연산수단과, 하류측에 유체를 설정유량(Qs)으로 공급하도록 지령하는 유량설정수단과, 설정유량(Qs)과 연산유량(Qc)의 유량차(ΔQ)를 연산하는 감산수단과, 이 유량차(ΔQ)를 제로가 되도록 컨트롤밸브를 개폐제어하는 구동부로 구성되고, 하류측 배관에 공급되는 유체의 유량을 설정유량(Qs)으로 제어하는 것을 특징으로 하는 개량형 압력식 유량제어장치.
- 제3항 또는 제4항에 있어서, 임계압력비(rC)(=P2/P1)는 (2/(n+1))n/(n-1)(단, n은 Cp/Cv로 정의되는 유체분자의 비열비)로 계산되고, 압력비(P2/P1)가 임계압력비 (rC) 이하일 때에 임계조건으로 판단하고, 또한, 임계압력비보다 클 때에 비임계조건으로 판단하는 것을 특징으로 하는 개량형 압력식 유량제어장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001399433A JP4102564B2 (ja) | 2001-12-28 | 2001-12-28 | 改良型圧力式流量制御装置 |
JPJP-P-2001-00399433 | 2001-12-28 | ||
PCT/JP2002/012250 WO2003058363A1 (fr) | 2001-12-28 | 2002-11-22 | Dispositif perfectionne de regulation d'ecoulement du type commande par la pression |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030074743A true KR20030074743A (ko) | 2003-09-19 |
KR100601803B1 KR100601803B1 (ko) | 2006-07-19 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020037009876A KR100601803B1 (ko) | 2001-12-28 | 2002-11-22 | 개량형 압력식 유량제어장치 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6964279B2 (ko) |
EP (1) | EP1475684B1 (ko) |
JP (1) | JP4102564B2 (ko) |
KR (1) | KR100601803B1 (ko) |
CN (1) | CN1279416C (ko) |
CA (1) | CA2423342C (ko) |
DE (1) | DE60219365T2 (ko) |
IL (2) | IL155358A0 (ko) |
TW (1) | TW552491B (ko) |
WO (1) | WO2003058363A1 (ko) |
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- 2001-12-28 JP JP2001399433A patent/JP4102564B2/ja not_active Expired - Lifetime
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2002
- 2002-11-22 KR KR1020037009876A patent/KR100601803B1/ko active IP Right Grant
- 2002-11-22 CN CNB028055896A patent/CN1279416C/zh not_active Expired - Lifetime
- 2002-11-22 IL IL15535802A patent/IL155358A0/xx not_active IP Right Cessation
- 2002-11-22 WO PCT/JP2002/012250 patent/WO2003058363A1/ja active IP Right Grant
- 2002-11-22 DE DE60219365T patent/DE60219365T2/de not_active Expired - Fee Related
- 2002-11-22 US US10/469,151 patent/US6964279B2/en not_active Expired - Lifetime
- 2002-11-22 EP EP02781829A patent/EP1475684B1/en not_active Expired - Lifetime
- 2002-11-22 CA CA002423342A patent/CA2423342C/en not_active Expired - Fee Related
- 2002-12-06 TW TW091135458A patent/TW552491B/zh not_active IP Right Cessation
-
2003
- 2003-04-10 IL IL155358A patent/IL155358A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20040204794A1 (en) | 2004-10-14 |
KR100601803B1 (ko) | 2006-07-19 |
CA2423342A1 (en) | 2003-06-28 |
TW200301414A (en) | 2003-07-01 |
JP2003195948A (ja) | 2003-07-11 |
TW552491B (en) | 2003-09-11 |
US6964279B2 (en) | 2005-11-15 |
CN1279416C (zh) | 2006-10-11 |
DE60219365D1 (de) | 2007-05-16 |
DE60219365T2 (de) | 2007-08-09 |
EP1475684B1 (en) | 2007-04-04 |
CN1494672A (zh) | 2004-05-05 |
EP1475684A4 (en) | 2005-09-07 |
IL155358A0 (en) | 2003-11-23 |
JP4102564B2 (ja) | 2008-06-18 |
IL155358A (en) | 2006-10-05 |
CA2423342C (en) | 2007-03-06 |
WO2003058363A1 (fr) | 2003-07-17 |
EP1475684A1 (en) | 2004-11-10 |
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