DAB K 55/50 T [111/124] Z1 pb mcw 6 111 npsh hr pv 7 111

DAB K 36/100 M [111/124] Z1 pb mcw 6 111 npsh hr pv 7 111
Ё᭛
105
6.6.3
ދǃ⛁䚼ӊ
೼催⏽ǃ催य़ⱘ԰⫼ϟˈ㋏㒳Ёⱘ⎆ԧ䕀ব៤㪌≑ᔶᗕʽ
⚻Ӹॅ䰽
⺄㾺∈⋉៪㋏㒳݊Ҫ䚼ӊৃ㛑Ӯথ⫳ॅ䰽DŽ
ދǃ⛁䚼ӊᰃᇐ㟈ॅ䰽ⱘḍ⑤ˈᖙ乏䞛পᙄᔧⱘֱᡸ᥾ᮑҹ䙓ܡⳈ᥹
᥹㾺DŽ
7.
ᅝ㺙
⋉ݙৃ㛑Ӯ⅟⬭ᇥ䞣⌟䆩ᯊ࠽ϟⱘ∈DŽᓎ䆂೼᳔㒜ᅝ㺙ࠡ⫼ޔ∈ⷁ᱖⏙⋫DŽ
7.1
⬉⋉ᖙ乏ᅝ㺙೼䗮亢㡃དⱘഄᮍˈ㽕䙓ܡᅝ㺙೼ᙊࡷ໽⇨⦃๗ঞ⦃๗⏽ᑺ䍙ߎ
40°C ⱘഄᮍDŽ
䰆ᡸㄝ㑻䖒ࠄIP55 ⱘ⬉⋉ৃᅝ㺙೼᳝♄ᇬǃ╂⑓ⱘഄᮍDŽབ೼᠋໪ᅝ㺙ˈ䳔䞛প
⡍⅞᥾ᮑᢉᡫᙊࡷ໽⇨DŽ
7.2
фᮍܼᴗ䋳䋷ᓎ䗴෎ৄDŽ䞥ሲ෎ৄ㽕஋ⓚҹ䙓ܡ㜤㱔ˈᑊϨ㽕ᑇ〇ǃമ೎ǃ㗤य़
࡯DŽЎ䙓ܡ݅ᤃᓩ䍋䳛ࡼˈሎᇌᖙ乏㒣䖛䅵ㅫDŽ
བᵰᰃ∈⊹෎ৄˈᅝ㺙⋉Пࠡˈ㽕⹂ֱ∈⊹Ꮖ㒣ޱ೎㒧ᅲˈᑊϨᅠܼᑆ䗣DŽ∈⋉
⬉ᴎ㺙䜡ᬃ㛮Ϣ෎ৄᖙ乏䫮ᅮ⠶೎ˈҹޣᇥ⋉䖤㸠ᯊѻ⫳ⱘ䳛ࡼDŽ
7.3
⹂ֱ䞥ሲㅵ䏃ϡ㽕㒭⋉ষ䗴៤䖛໻ⱘय़࡯ˈ䙓ܡ䗴៤বᔶ៪ᤳണDŽFig. B.
ӏԩ⬅Ѣফ⛁㗠ᓩ䍋ⱘㅵ䏃㝼㚔ϔᅮ㽕᳝䗖ᔧⱘ乘䰆᥾ᮑ䖯㸠ᓹ㸹ˈ䙓ܡ䗴៤⋉
ⱘᡓय़䖛໻DŽㅵ䏃ⱘ⊩݄ϔᅮ㽕Ϣ⋉ⱘ⊩݄ᑇ㸠DŽ
7.4
Ўᇚా䷇ޣ㟇᳔ᇣˈ៥Ӏᓎ䆂೼ㅵ䏃䖯ߎষˈ⬉ᴎᑩ䚼Ϣ෎ৄ䯈ᅝ㺙ޣ䳛఼DŽ
7.5
⋉ⱘᅝ㺙㽕ሑৃ㛑䴴䖥⋉䗕⎆ԧDŽㅵ䏃ݙᕘᖙ乏ϡᇣѢ⋉ষݙᕘDŽབᵰ਌ܹ∈༈
ᰃ䋳य़ˈᖙ乏೼ܹষㅵ䏃ᅝ㺙ϔϾᗻ㛑ড়䗖ⱘᑩ䯔DŽFig. C.
བᵰ਌ܹ⏅ᑺ䍙䖛4 ㉇៪∈ᑇᆑᑺ䖛ᆑˈᓎ䆂਌ܹㅵ䏃Ⳉᕘ㽕↨⋉ܹষⳈᕘ໻DŽ
ㅵᕘϢᔃ༈䯈ⱘϡ㾘߭ㅵ䘧ˈ䛑Ӯ໻໻๲ࡴㅵ䏃ᤳ༅DŽ
ӏԩ⬅ᇣㅵ䏃䗮ࠄ໻ㅵ䏃䛑ᖙ乏⏤䖯䖯㸠DŽ䗮ᐌᭈϾㅵ䘧Ӯ᳝5-7 ໘ϡৠㅵ䏃DŽ
Ҩ㒚Ẕᶹ⹂ֱㅵ䏃ܹষ䖲᥹໘≵᳝ぎ⇨⏫ܹDŽ
⹂ֱ⊩݄੠䖲᥹⊩݄П䯈ⱘൿ೜೎ᅮᅠདˈ䙓ܡ㒭ㅵ䏃Ёⱘ⌕ԧѻ⫳䰏࡯DŽ䙓ܡ
ѻ⫳⇨え⦄䈵ˈᇚㅵ䏃䕏䕏৥⋉ؒ᭰DŽFig. C.
བᵰᅝ㺙໮ৄ⋉ˈ↣Ͼ⋉䛑㽕ᅝ㺙㞾Ꮕⱘ䖯ষㅵ䏃DŽଃϔⱘ՟໪ᰃ໛⫼⋉ˈϔᮺ
Џ⋉থ⫳ᬙ䱰ˈਃࡼℸ⋉ˈ⹂ֱ↣Ͼܹ∈ㅵ䏃া⬅ϔৄ⋉᪡԰DŽ
7.6
៾ℶ䯔ᖙ乏ᅝ㺙೼⋉ⱘϞ⌕੠ϟ⌕ˈҹ䙓ܡ㓈ׂ⋉ᯊ㋏㒳ⱘ∈㹿ᥦߎDŽ
7.7
⋉ϡৃҹ೼៾ℶ䯔݇䯁ᯊ䖯㸠Ꮉ԰ˈབߎ⦄ℸᚙމˈ⎆ԧ⏽ᑺӮϞछ
ᑊ೼⋉ݙѻ⫳⇨ԧ⇨⊵ᇐ㟈ᴎẄᤳᆇDŽབ⋉Ꮉ԰ᯊৃ㛑䳔㽕݇䯁៾ℶ
䯔ˈ㽕ᅝ㺙ϔϾᮕ䗮ㅵ៪ᥦߎㅵ䖲᥹ࠄ⎆ԧಲᬊ㔤DŽ
7.8
Ў⹂ֱ⬉⋉ⱘ㡃ད䖤㸠੠ᗻ㛑䖒ࠄ᳔Շˈ᳝ᖙ㽕ⶹ䘧⋉ⱘ⇨㱔ᷛޚ˄ޔℷ਌ܹ∈
༈˅ˈЎ䰡Ԣ਌ܹ催ᑺZ1ˈৃҹ೼ 义ᡒࠄ৘⾡⋉ⱘNPSH ᳆㒓೒DŽ
䖭ϔ䅵ㅫᕜ䞡㽕ˈ಴Ўᅗৃҹֱ䆕⋉೼≵᳝⇨え⦄䈵ⱘᚙމϟℷ⹂䖤㸠ˈ⇨え೼
৊䕂਌ܹッѻ⫳ˈ㒱ᇍय़࡯ϟ䰡ࠄϔᅮؐˈ⌕ԧЁᔶ៤⇨⊵ˈ䖭ḋᇐ㟈⋉Ꮉ԰ϡ
㾘߭ˈᡀ⿟ϟ䰡DŽ⋉ϔᅮϡ㛑ѻ⫳⇨えˈ಴Ў䖭ḋӮѻ⫳㉏Ԑ䞥ሲ᥊ᠧໄᎼ໻ా
䷇ˈᇚᇍ৊䕂䗴៤᮴⊩ᤑಲⱘӸᆇDŽ
䅵ㅫ਌ܹ催ᑺZ1ˈᖙ乏Փ⫼ҹϟ݀ᓣ˖
Z1 = pb - rqd. N.P.S.H. - Hr - correct pV
Z1
=
⋉䕈Ϣ⋉䗕⎆ԧ៾䴶П䯈ⱘ催ᑺᏂ˄㉇˅
pb
=
ᅝ㺙ഄⱘ໻⇨य़࡯ mcw (
㾕
6, 111
)
NPSH
=
ᖙ䳔⇨㱔ԭ䞣 (
㾕
)
Hr
=
ᭈϾܹষㅵⱘㅵ䏃ᤳ༅˄ㅵ䏃᳆㒓ᑩ䯔˅
pV
=
⎆ԧ佅੠㪌⇨य़DŽ
7, 111
义

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