Q : ഘୁଉ[dm
3
/min(ANR)]ĂSIڇ࿋ڦdm
3
(૬ݛݴ)ᇑ
(ื)ڦ࠲ဣ1dm
3
Ǚ1
ă
S : ᆶၳপ௬[mm
2
]
P1: ฉᆴუ૰[MPa]
P2: ူᆴუ૰[MPa]
t : ࿒܈[ņ]
ጀ) ჱำୁۯࠅ๕(4)ᇑӀำୁڞC ڦࠅ๕(2)ሞb =0.5้၎ཞڦă
(4)ᄓݛ݆
ሞ3๖ڦᄓ࣮ୟฉLjӝԥ֪ᇮথሞದ࠶ฉLjᅜփگᇀ0.6MPaڦᅃۨუ૰ڦუഘ؊ഘ࠸ࢫLjም
ഘ࠸ాუഘಇٷഘLj๑ഘ࠸ాუ૰ই0.25MPa(0.2MPa)ፑᆸăඟኄ߲ݣ้ྺۨኵăݣዃᅃ้ۨ
ࢫ֪ۨഘ࠸ాڦ֘٪უ૰LjӀူ๕໙প௬Săഘ࠸ڦඹӀԥ֪ᇮڦᆶၳপ௬Ljሞࡀۨڦݔྷా
ۨă
JIS B 8373,8374,8379,8381ڦׇࢇĂუ૰ኵ
Psྺ0.5MPa้Ljࠅ๕ڦဣຕ߀ྺ12.9ă
V Ps LJ0.1 293
SǙ12.1Ċlog
10
(
)
čččččččččččč(6)
t PLJ0.1 T
S
: ᆶၳপ௬[mm
2
]
V : ഘ࠸ඹ[dm
3
]
t : ݣ้[s]
Ps: ݣമڦഘ࠸ాუ૰[MPa]
P
: ݣࢫڦഘ࠸ా֘٪უ૰[MPa]
T
: ݣമڦഘ࠸ా࿒܈[K]
2.3ୁཚీ૰
Cv
ኵ
ெࡔՔጚANSI/(NFPA)T3.21.3:1990:Pneumatic fluid power-Flow rating test procedure and
reporting method-For fixed orifice components
ᆩᇑISO6358ૌຼڦᄓ࣮ୟႜᄓLjୁཚీ૰(flow coefficient)Cv ኵӀူ๕ۨᅭă
Q
Cv
= ččččččččččččččč(7)
ŗ
P(P2LJPa)
114.5
T1
ŗ
P: ৢუൽڦუ૰ই[bar]
P1 : ฉᆴൽڦუ૰[barუ]
P2 : ူᆴൽڦუ૰[barუ]:P2=P1lj
ŗ
P
Q
: ୁଉ[dm
3
/sՔጚጒༀ]
Pa : ٷഘუ[barܔ]
T1 : ฉᆴܔ࿒܈[K]
ᄓཉ:
P1LJPa=6.5Ġ0.2barܔĂT1=297Ġ5KĂ0.07bar ŗP 0.14bară
ኄუ૰ই၎ܔᇀฉᆴუ૰ডၭLjৈࢇഘڦუႠփՂ୯ڦׇࢇLjᇑISO6358ሜڦᆶၳୁୟ௬
(effective area)Aཞᄣڦ߁ă
ഘᇸ ࡗ୳ഗ পኹ݅
უ૰ᇮ
࿒܈
უ૰࠲
࣮ୟ
უ૰
უ૰Վ࣑ഗ
้ഗ(้)
უ૰ഗ
ۉى݅
ۉᇸ
ԥ֪ᇮ
ူᆴ
ኝୁ࠶
ฉᆴ
ኝୁ࠶
ഘ࠸
3. JIS B 8390 ڦᄓ࣮ୟ
ۉى݅ୁଉ༬Ⴀ
)ୁଉ༬Ⴀڦ๖ݛ݆*
ۉى݅ୁଉ༬Ⴀ
3.ୁ༹ᆩᇮ
(1) ᅈՔጚ
IEC60534-2-3;1997;Industrial-process control valves. Part 2;Flow capacity, Section Three-
Test procedures
JIS B 2005;1995;݅ڦୁཚీ૰ڦᄓݛ݆
ᇮՔጚ;JIS B 8471;ᆩۉى݅
JIS B 8472;ኖഛᆩۉى݅
JIS B 8473;ᆳᆩۉى݅
(2) ୁଉ༬Ⴀڦۨᅭ
Avኵ;უ૰ֶྺ1Pa้Ljୁࡗ݅(֪ᇮ)ڦڦୁଉᅜm
3
/s๖ڦຕኵăӀူ௬ڦࠅ๕໙ă
Av=Q ĊĊ!!………………………………………………………………………(8)
ŗ
P
Av
ǖୁཚీ૰Ƿm
2
ǹ
Q
ǖୁଉǷm
3
sǹ
ŗ
Pǖუ૰ֶǷPaǹ
!
ǖୁ༹܈Ƿkg/m
3
ǹ
(3) ୁଉ໙๕
ူ௬ᆩํᆩڇ࿋ઠ๖ăଷྔLjୁଉ༬Ⴀ၍ස4๖ă
ᅂ༹ڦׇࢇǖ
ŗ
P
Q
=1.9×10
6
Av ĊĊ ……………………………………………………………(9)
G
Q
ǖୁଉǷL/minǹ
Av ǖୁཚీ૰Ƿm
2
ǹ
ŗ
Pǖუ૰ֶǷMPaǹ
G
ǖԲዘǷ=1ǹ
ԏࢅኖഛڦׇࢇǖ
Q=8.3×10
6
Av
ŗ
P(P2+0.1) ……………………………………………………(10)
Q
ǖୁଉǷkg/hǹ
Av ǖୁཚీ૰Ƿm
2
ǹ
ŗ
Pǖუ૰ֶǷMPaǹ
P1 ǖฉᆴუ૰ǷMPaǹǖ
ŗ
P=P1−P2
P2 ǖူᆴუ૰ǷMPaǹ
ୁཚీ૰ڦ࣑໙ǖ
Av=28×10
-6
Kv=24×10
-6
Cv ……………………………………………………(11)
ሞُ
Kvኵ
āāā
!!
ǖუ૰ֶྺ1bar้Lj࿒܈540ņڦୁࡗ้݅ڦୁଉᅜm
3
/s๖ڦຕኵă
Cvኵ(֖ኵ)ǖუ૰ֶྺ1lbf/in
2
(psi)้Lj࿒܈60°Fڦୁࡗ้݅ڦୁଉᅜUS gal/min๖ڦຕኵă
ᅺُLjഘᆩڦKv, Cvᅺᄓݛ݆ڦփཞLjഄຕኵփᅃዂă
Best Pneumatics
综合
样本
Q : ഘୁଉ[dm
3
/min(ANR)]ĂSIڇ࿋ڦdm
3
(૬ݛݴ)ᇑ
(ื)ڦ࠲ဣ1dm
3
Ǚ1
ă
S : ᆶၳপ௬[mm
2
]
P1: ฉᆴუ૰[MPa]
P2: ူᆴუ૰[MPa]
t : ࿒܈[ņ]
ጀ) ჱำୁۯࠅ๕(4)ᇑӀำୁڞC ڦࠅ๕(2)ሞb =0.5้၎ཞڦă
(4)ᄓݛ݆
ሞ3๖ڦᄓ࣮ୟฉLjӝԥ֪ᇮথሞದ࠶ฉLjᅜփگᇀ0.6MPaڦᅃۨუ૰ڦუഘ؊ഘ࠸ࢫLjም
ഘ࠸ాუഘಇٷഘLj๑ഘ࠸ాუ૰ই0.25MPa(0.2MPa)ፑᆸăඟኄ߲ݣ้ྺۨኵăݣዃᅃ้ۨ
ࢫ֪ۨഘ࠸ాڦ֘٪უ૰LjӀူ๕໙প௬Săഘ࠸ڦඹӀԥ֪ᇮڦᆶၳপ௬Ljሞࡀۨڦݔྷా
ۨă
JIS B 8373,8374,8379,8381ڦׇࢇĂუ૰ኵ
Psྺ0.5MPa้Ljࠅ๕ڦဣຕ߀ྺ12.9ă
V Ps LJ0.1 293
SǙ12.1Ċlog
10
(
)
čččččččččččč(6)
t PLJ0.1 T
S
: ᆶၳপ௬[mm
2
]
V : ഘ࠸ඹ[dm
3
]
t : ݣ้[s]
Ps: ݣമڦഘ࠸ాუ૰[MPa]
P
: ݣࢫڦഘ࠸ా֘٪უ૰[MPa]
T
: ݣമڦഘ࠸ా࿒܈[K]
2.3ୁཚీ૰
Cv
ኵ
ெࡔՔጚANSI/(NFPA)T3.21.3:1990:Pneumatic fluid power-Flow rating test procedure and
reporting method-For fixed orifice components
ᆩᇑISO6358ૌຼڦᄓ࣮ୟႜᄓLjୁཚీ૰(flow coefficient)Cv ኵӀူ๕ۨᅭă
Q
Cv
= ččččččččččččččč(7)
ŗ
P(P2LJPa)
114.5
T1
ŗ
P: ৢუൽڦუ૰ই[bar]
P1 : ฉᆴൽڦუ૰[barუ]
P2 : ူᆴൽڦუ૰[barუ]:P2=P1lj
ŗ
P
Q
: ୁଉ[dm
3
/sՔጚጒༀ]
Pa : ٷഘუ[barܔ]
T1 : ฉᆴܔ࿒܈[K]
ᄓཉ:
P1LJPa=6.5Ġ0.2barܔĂT1=297Ġ5KĂ0.07bar ŗP 0.14bară
ኄუ૰ই၎ܔᇀฉᆴუ૰ডၭLjৈࢇഘڦუႠփՂ୯ڦׇࢇLjᇑISO6358ሜڦᆶၳୁୟ௬
(effective area)Aཞᄣڦ߁ă
ഘᇸ ࡗ୳ഗ পኹ݅
უ૰ᇮ
࿒܈
უ૰࠲
࣮ୟ
უ૰
უ૰Վ࣑ഗ
้ഗ(้)
უ૰ഗ
ۉى݅
ۉᇸ
ԥ֪ᇮ
ူᆴ
ኝୁ࠶
ฉᆴ
ኝୁ࠶
ഘ࠸
3. JIS B 8390 ڦᄓ࣮ୟ
ۉى݅ୁଉ༬Ⴀ
)ୁଉ༬Ⴀڦ๖ݛ݆*
ۉى݅ୁଉ༬Ⴀ
3.ୁ༹ᆩᇮ
(1) ᅈՔጚ
IEC60534-2-3;1997;Industrial-process control valves. Part 2;Flow capacity, Section Three-
Test procedures
JIS B 2005;1995;݅ڦୁཚీ૰ڦᄓݛ݆
ᇮՔጚ;JIS B 8471;ᆩۉى݅
JIS B 8472;ኖഛᆩۉى݅
JIS B 8473;ᆳᆩۉى݅
(2) ୁଉ༬Ⴀڦۨᅭ
Avኵ;უ૰ֶྺ1Pa้Ljୁࡗ݅(֪ᇮ)ڦڦୁଉᅜm
3
/s๖ڦຕኵăӀူ௬ڦࠅ๕໙ă
Av=Q ĊĊ!!………………………………………………………………………(8)
ŗ
P
Av
ǖୁཚీ૰Ƿm
2
ǹ
Q
ǖୁଉǷm
3
sǹ
ŗ
Pǖუ૰ֶǷPaǹ
!
ǖୁ༹܈Ƿkg/m
3
ǹ
(3) ୁଉ໙๕
ူ௬ᆩํᆩڇ࿋ઠ๖ăଷྔLjୁଉ༬Ⴀ၍ස4๖ă
ᅂ༹ڦׇࢇǖ
ŗ
P
Q
=1.9×10
6
Av ĊĊ ……………………………………………………………(9)
G
Q
ǖୁଉǷL/minǹ
Av ǖୁཚీ૰Ƿm
2
ǹ
ŗ
Pǖუ૰ֶǷMPaǹ
G
ǖԲዘǷ=1ǹ
ԏࢅኖഛڦׇࢇǖ
Q=8.3×10
6
Av
ŗ
P(P2+0.1) ……………………………………………………(10)
Q
ǖୁଉǷkg/hǹ
Av ǖୁཚీ૰Ƿm
2
ǹ
ŗ
Pǖუ૰ֶǷMPaǹ
P1 ǖฉᆴუ૰ǷMPaǹǖ
ŗ
P=P1−P2
P2 ǖူᆴუ૰ǷMPaǹ
ୁཚీ૰ڦ࣑໙ǖ
Av=28×10
-6
Kv=24×10
-6
Cv ……………………………………………………(11)
ሞُ
Kvኵ
āāā
!!
ǖუ૰ֶྺ1bar้Lj࿒܈540ņڦୁࡗ้݅ڦୁଉᅜm
3
/s๖ڦຕኵă
Cvኵ(֖ኵ)ǖუ૰ֶྺ1lbf/in
2
(psi)้Lj࿒܈60°Fڦୁࡗ้݅ڦୁଉᅜUS gal/min๖ڦຕኵă
ᅺُLjഘᆩڦKv, Cvᅺᄓݛ݆ڦփཞLjഄຕኵփᅃዂă
Best Pneumatics
综合
样本
前附
16