A stopkɔkvalve ji [1] valve ni tsɔɔ mli tɛ̃ɛ ni gbeleɔ ni egbeleɔ oya, ni akɛtsuɔ nii hu kɛhaa adafitswaa nibii ni yɔɔ mli lɛ yɛ bɔ ni sɛɛkuu ni yɔɔ skru seal lɛ hiɛi lɛ ateŋ lɛ tsuɔ he nii kɛ hebuu ni yeɔ emuu kɛjɛɔ adafitswaa ni hoɔ lɛ he kɛji agbele kwraa lɛ hewɔ. Nɔ kroko ni he hiaa ji akɛ, ewaaa akɛ aaatsake ehe awo gbɛi srɔtoi ni akɛtswaa nu lɛ amli, bɔni afee ni valve kome anyɛ ana gbɛi srɔtoi enyɔ, etɛ, loo ejwɛ po ni nu lɛ hoɔ yɛ mli. Enɛ haa bɔ ni afee paipii lɛ aha lɛ feɔ mlɛo, ni ehaa valvɛi ni akɛtsuɔ nii lɛ ayibɔ baa shi, ni ehaa nibii ni akɛtsaa nibii ni he hiaa yɛ nibii ni akɛtsuɔ nii lɛ amli lɛ ekomɛi hu baa shi.
Bɔ ni etsuɔ nii Valves kɛstopkɔkgbɔmɔtsei ni yɔɔ through-holes akɛ fãi ni gbeleɔ kɛ fãi ni gbeleɔ. Plɔg gbɔmɔtso lɛ kɛ [2] tso lɛ tsɔɔ ehe koni enine ashɛ nitsumɔ ni akɛgbeleɔ kɛ nɔ ni akɛgbeɔ naa lɛ nɔ. Ale plɔg valve bibioo ni ajieee lɛ kpo lɛ hu akɛ “cocker”. Plɔg valve lɛ plɔg gbɔmɔtso lɛ ji cone babaoo (cylindrical gbɔmɔtso hu yɛ), ni akɛ conical orifice ni yɔɔ valve gbɔmɔtso lɛ hiɛ lɛ kpãa gbee koni efee sealing pair. Plɔg valve lɛ ji valve ni akɛtsuɔ nii mra fe fɛɛ, ni egbɛjianɔtoo lɛ waaa, egbeleɔ oya ni egbeɔ naa, ni nu ni nyɛɔ eshiɔ lɛ faaa. Plɔg valvɛi ni afɔɔ nitsumɔ lɛ damɔɔ dade plɔg gbɔmɔtso ni agbe naa lɛ kɛ valve gbɔmɔtso lɛ teŋ tsakpaa tɛ̃ɛ nɔ koni ekɛtsi naa, no hewɔ lɛ, naatsii lɛ ehiii, hewalɛ ni akɛgbeleɔ kɛ naagbee lɛ da, ni awoɔ lɛ waaa, ni bei pii lɛ, abaanyɛ akɛtsu nii yɛ tsɔne ni tsiimɔ waaa mli pɛ (ni nɔ kwɔ fe 1 megapascal) kɛ diameter bibioo (ni shɛɛɛ 1 occa0 mm) mli pɛ.
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Taakɛ bɔ ni ato he gbɛjianɔ aha lɛ tsɔɔ lɛ, abaanyɛ aja mli awo henɔi ejwɛ mli: plɔg valve ni mli wa, plɔg valve ni tsiɔ ehe, plɔg valve kɛ plɔg valve ni akɛ mu woɔ mli. Taakɛ tsɔne lɛ he mfoniri lɛ tsɔɔ lɛ, abaanyɛ aja mli awo henɔi etɛ mli: plɔg valve ni tsɔɔ tɛ̃ɛ, valve ni tsɔɔ gbɛi etɛ nɔ ni tsiɔ tsɔne lɛ naa kɛ gbɛi ejwɛ plɔg valve. Ayɛ tsɔne ni akɛwoɔ tsɔne mli lɛ hu.
Ajara plɔg valvɛi amli yɛ bɔ ni akɛtsuɔ nii ahaa lɛ mli ni nɔ ni fata he ji: plɔg valvɛi ni yɔɔ mlɛo, plɔg valvɛi ni wa ni akɛ mu ewo mli, poppet plɔg valvɛi, gbɛi etɛ kɛ gbɛi ejwɛ plɔg valvɛi.
Sɛɛnamɔi ni yɔɔ he
1. Akɛ plɔg valve lɛ tsuɔ nii shii abɔ, ni egbelemɔ kɛ egbelemɔ yaa oya ni ehiɛ waaa.
2. Nu ni tsiɔ plɔg valve lɛ naa lɛ faaa.
3. Plɔg valve lɛ yɛ gbɛjianɔtoo ko ni yɔɔ mlɛo, eyɛ bibioo, eshɛɛɛ, ni ekwɛmɔ hu waaa.
4. Sealing nitsumɔ kpakpa.
5. Ebɛ husu kɛtsɔ gbɛtsɔɔmɔ ni akɛwoɔ mli lɛ nɔ, ni gbɛtsɔɔmɔ ni tsɔɔ mli lɛ baanyɛ afee nɔ ni mɔ fɛɛ mɔ sumɔɔ.
6. Vibration ko bɛ, gbee ni baa shi.
Shinaa valves ni yɔɔ blɛoo
Soft seal gate valve, nitsumɔhe valve, soft seal gate valve ni agbeleɔ kɛ ŋamɔ fãi lɛ ji tooi, gbɛ ni too lɛ nyiɛɔ lɛ ji nɔ ni kɛ nu lɛ gbɛtsɔɔmɔ lɛ kpãa gbee, shinaa lɛ valve lɛ baanyɛ agbele ni eŋa kwraa pɛ, anyɛɛɛ atsake ni atswa throttled. 1200 ji DN50~DN1200, ni hulutsoo be lɛ: ≤200°C.
Nibii ahe shishitoo mla
Shinaa plɛte ni yɔɔ wedge lɛ mli lɛshinaa valve baanyɛ afee nɔ fɛɛ nɔ, ni atsɛɔ lɛ shinaa ni mli wa; Abaanyɛ afee lɛ too hu ni baanyɛ afee nɔ ko ni efite fioo koni ekɛha efeemɔ aya hiɛ ni ekɛto nɔ ni tsɔɔ ŋwɛi ŋta ni akɛfiɔ nii ahe lɛ mli yɛ nitsumɔ lɛ mli lɛ he, ni atsɛɔ lɛ elastic ram.
Seal ni yɔɔ blɛooshinaa lɛ naa valvɛiaja mli awo henɔi enyɔ mli: tso ni agbele naablɛoo seal shinaa valvekɛ diŋ tso ni yɔɔ blɛoo naatsiishinaa lɛ naa valve. Bei pii lɛ, tsɔne ko ni tamɔ trapezoidal thread yɛ tsɔne ni akɛwoɔ ŋwɛi lɛ nɔ, ni tsakeɔ tsɔne ni tsɔɔ tsɔne lɛ mli lɛ mli kɛtsɔɔ nut ni yɔɔ toobi lɛ teŋgbɛ lɛ kɛ gbɛtsɔɔmɔ ŋmei ni yɔɔ valve lɛ gbɔmɔtso lɛ nɔ lɛ nɔ, ni ji, tsɔne ni tsuɔ nii lɛ mli tsɔne ni tsiɔ nii lɛ mli. Kɛji akɛ agbele valve lɛ naa, ni ram lift height lɛ kɛ valve lɛ ŋwɛi ŋta lɛ mlijaa 1:1 yeɔ egbɔ lɛ, nu ni hoɔ lɛ tsiii kwraa, shi anyɛɛɛ akwɛ nɛkɛ he nɛɛ nɔ yɛ be mli ni atsuɔ nii lɛ. Yɛ nitsumɔ diɛŋtsɛ mli lɛ, akɛ tso lɛ yiteŋgbɛ, ni ji, he ni anyɛɛɛ agbele lɛ kadiɔ lɛ akɛ he ni egbele kwraa. Bɔni afee ni abu lock-up ni jɛɔ hulutsoo tsakemɔi amli lɛ he akɔntaa lɛ, bei pii lɛ, agbeleɔ kɛyaa ŋwɛigbɛ he lɛ, ni no sɛɛ lɛ akuɔ sɛɛ akuɔ sɛɛ 1/2-1 sɛɛkuu akɛ he ni valve ni agbele kwraa lɛ yɔɔ lɛ. No hewɔ lɛ, he ni toobi lɛ yɔɔ (ni ji strok lɛ) lɛ ji nɔ ni tsɔɔ he ni valve lɛ gbeleɔ kwraa lɛ. Esa akɛ akɛ valve nɛɛ awo paipii lɛ mli yɛ gbɛ ni yɔɔ ŋwɛigbɛ nɔ.
Taomɔ Nii Fɛɛ
1. Nibii ni kɔɔ he kɛ kui ni yɔɔ mli lɛblɛoo seal shinaa valvesesa akɛ eshɛ taomɔ nii ni yɔɔ paipii ahe mfonirifeemɔ woji amli lɛ ahe.
2. Esa akɛ soft seal gate valve lɛ nɔkwɛmɔnɔ lɛ atsɔɔ maŋ lɛ mli yibɔ ni ataoɔ yɛ gbɛ ni sa nɔ. Kɛji akɛ eji nitsumɔhe lɛ shishitoo mla lɛ, esa akɛ atsɔɔ nɔkwɛmɔnɔ lɛ he shishitsɔɔmɔ ni sa.
3. Nitsumɔ mli nɔnyɛɛ ni yɔɔblɛoo seal shinaa valveebiɔ ni ≥ paipii lɛ nitsumɔ mli hewalɛ, ni enaaa jara lɛ nɔ hewalɛ, nitsumɔ mli hewalɛ ni valve lɛ baanyɛ atere lɛ afee nɔ ni da fe paipii lɛ nitsumɔ mli hewalɛ diɛŋtsɛ lɛ, ni esa akɛ soft seal gate valve lɛ fã fɛɛ fã anyɛ adamɔ valve lɛ nitsumɔ mli hewalɛ leakage value lɛ shii 1.1 naa;
4. Nibii ni afee lɛ ahe mla ni jiblɛoo seal shinaa valveesa akɛ etsɔɔ maŋ lɛ mli shishitoo mla yibɔ ni damɔ nɔ lɛ, ni kɛji akɛ eji nitsumɔhe shishitoo mla lɛ, esa akɛ akɛ nitsumɔhe wolo lɛ afata nibii ahe kpaŋmɔ lɛ he.
Nɔ ni ji enyɔ lɛ, tsɔne ni akɛtswaa shinaa lɛ naa ni yɔɔ blɛoo lɛ
1. Esa akɛ nibii ni akɛfee valve lɛ gbɔmɔtso lɛ afee dade ni akɛfee, dade ni akɛfee, dade ni bɛ ŋmɔlɔ, 316L, ni esa akɛ atsɔɔ dade ni akɛfee lɛ grade kɛ gbɔmɔtsoŋ kɛ tsofafeemɔ mli kaa diɛŋtsɛ lɛ he saji.
2. Esa akɛ stem nibii lɛ abɔ mɔdɛŋ ni amɛná dade stem (2CR13), ni esa akɛ valve ni da lɛ hu afee dade stem ni akɛwo mli.
3. Akɛ aluminum akɔɔble loo akɔɔble ni akɛ aluminum fee nut lɛ, ni eshishijee kɛ ehewalɛ da fe valve stem lɛ nɔ.
4. Esaaa akɛ stem bushing nibii lɛ ahe walɛ kɛ hewalɛ fe valve stem lɛ nɔ lɛ, ni esaaa akɛ electrochemical corrosion ko baa valve stem kɛ valve gbɔmɔtso lɛ nɔ yɛ nu mlibotemɔ shihilɛ lɛ shishi.
5. Nibii ni akɛtswaa ŋwɛi ŋta lɛ
(1) Soft seal henɔi lɛshinaa lɛ naa valves lɛ yɛ srɔtoi, ni gbɛi ni atsɔɔ nɔ atswaa naa kɛ nibii ni ataoɔ lɛ hu yɛ srɔtoi;
(2) Kɛha wedge gate valves folo lɛ, esa akɛ atsɔɔ nibii ni akɛfee, gbɛ ni atsɔɔ nɔ atswaa kɛ gbɛ ni atsɔɔ nɔ ashɛreɔ akɔɔble ŋmɛlɛ lɛ mli;
(3) Gbɔmɔtsoŋ tsofafeemɔ kɛ hetsemɔ he kaa he saji ni kɔɔ soft seal gate valve kɛ valve plɛte ni akɛwoɔ mli lɛ he;
6. Valve shaft ni akɛwoɔ mli
(1) Ejaakɛ naatsii ni yɔɔ blɛoo lɛshinaa lɛ naa valveyɛ paipii lɛ mli lɛ, bei pii lɛ, agbeleɔ ni agbeɔ naa shii abɔ lɛ, ehe miihia ni nɔ ni akɛwoɔ mli lɛ akatsu nii afii babaoo, ni nɔ ni akɛwoɔ mli lɛ etsɛɛɛ, ni nɔ ni haa nɔ ni akɛwoɔ mli lɛ hiɔ shi be kakadaŋŋ;
(2) Esa akɛ valve lɛ mli nibii ni akɛwoɔ mli lɛ hu ahi shi daa kɛ́ agbeleɔ ni agbeleɔ shii abɔ lɛ;
(3) Yɛ taomɔ nii ni yɔɔ ŋwɛi nɛɛ ahewɔ lɛ, valve shaft packing lɛ bɔɔ mɔdɛŋ ni akatsake lɛ kɛyashi wala be fɛɛ mli loo nɔ ni fe afii nyɔŋma;
(4) Kɛ ehe bahia ni atsake nɔ ni akɛwoɔ mli lɛ, esa akɛ bɔ ni afee pneumatic valve lɛ aha lɛ asusu gbɛjianɔtoi ni abaanyɛ atsɔ nɔ atsake yɛ nu ni tsiimɔ yɔɔ mli lɛ shishi lɛ he.
Nɔ ni ji etɛ lɛ, bɔ ni soft seal lɛ tsuɔ nii eha lɛshinaa lɛ naa valve
3.1 Esa akɛ agbele gbɛ ni atsɔɔ nɔ agbeleɔ kɛ agbeleɔ soft seal gate valve lɛ naa yɛ nitsumɔ be mli lɛ mli yɛ ŋmɛlɛtswaa gbɛ nɔ.
3.2 Akɛni bei pii lɛ, akɛ niji gbeleɔ pneumatic valve ni yɔɔ paipii lɛ mli lɛ ni agbeɔ naa hewɔ lɛ, esaaa akɛ ŋmɛlɛtswai ni agbeleɔ kɛ ŋmɛlɛtswai ni agbeleɔ lɛ ayibɔ feɔ babaoo, ni ji akɛ, esa akɛ valve ni da lɛ hu ahi ŋmɛlɛtswai 200-600 mli.
3.3 Bɔni afee ni mɔ kome gbelemɔ kɛ naagbee nitsumɔ lɛ aya hiɛ lɛ, esa akɛ gbelemɔ kɛ naagbee torque ni fe fɛɛ lɛ afee 240N-m yɛ paipii mli hewalɛ shihilɛ lɛ shishi.
3.4 Esa akɛ soft seal gate valve lɛ naagbee nitsumɔ lɛ naagbee lɛ afee square tenon, ni esa akɛ elɛɛmɔ afee nɔ ni sa, ni ekwɛ shikpɔŋ lɛ hiɛ, koni gbɔmɛi anyɛ atsu nii kɛjɛ shikpɔŋ lɛ nɔ tɛ̃ɛ. Valves ni yɔɔ disc discs lɛ esaaa akɛ akɛtsuɔ nii yɛ shikpɔŋ shishi tsɔnei amli.
3.5 tsɔɔmɔ panel ni ji gbelemɔ kɛ naagbee ŋwɛi ŋta ni yɔɔ blɛoo lɛshinaa lɛ naa valve
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(2) Abaanyɛ akɛ dade plɛte ni sɛɛ efooo afee nibii ni akɛtsɔɔ nɔ ko lɛ mli yɛ shihilɛ ni hi jogbaŋŋ mli, kɛjee nakai lɛ, eji dade plɛte ni akɛ mfoniri ekpɛ, ni esaaa akɛ akɛ aluminum hewolo feɔ;
(3) Indicator disc needle lɛ haa mɔ hiŋmɛi nyaa he, ni akɛfiɔ shi shiŋŋ, kɛji akɛ agbeleɔ kɛ agbeɔ naa lɛ he tsakemɔ lɛ ja pɛ lɛ, esa akɛ akɛ rivets atswa lɛ.
3.6 Kɛji akɛ afu soft seal gate valve lɛ mli shɔŋŋ, ni gbɛ ni kã nitsumɔ gbɛjianɔtoo lɛ kɛ display panel lɛ kɛ shikpɔŋ lɛ teŋ lɛ ji ≥1.5m lɛ, esa akɛ akɛ extension rod facility awo mli, ni esa akɛ atswa lɛ shi shiŋŋ bɔni afee ni gbɔmɛi anyɛ akwɛ ni amɛtsu nii kɛjɛ shikpɔŋ lɛ nɔ. No ji akɛ, valve ni yɔɔ paipii lɛ mli lɛ gbelemɔ kɛ egbelemɔ nitsumɔ lɛ esaaa kɛha shikpɔŋ shishi nitsumɔ.
Nɔ ni ji ejwɛ lɛ, nitsumɔ he kaa ni kɔɔ soft seal lɛ he lɛshinaa lɛ naa valve
4.1 Kɛ́ afee valve lɛ yɛ kui amli yɛ gbɛ ko nɔ lɛ, esa akɛ akɛ gbɛjianɔtoo ko ni yɔɔ hegbɛ lɛ awo edɛŋ koni eka nitsumɔ ni nyiɛ sɛɛ nɛɛ ekwɛ:
(1) Torque ni valve lɛ gbeleɔ kɛ naagbee yɛ nitsumɔ mli nɔnyɛɛ shihilɛ lɛ shishi;
(2) Yɛ nitsumɔ mli nɔnyɛɛ shihilɛ lɛ shishi lɛ, ebaanyɛ ekwɛ koni be ni akɛgbeleɔ kɛ be ni akɛgbeɔ .valvni akɛkpa shi shiŋŋ;
(3) Nibii ni tsɔɔ bɔ ni valve lɛ tsiɔ nu ni hoɔ lɛ naa lɛ naa yɛ shihilɛ ni kɔɔ paipii mli nu ni akɛyaa he kroko lɛ shishi.
4.2 Nibii nivalvesa akɛ aka lɛ akwɛ tamɔ nɛkɛ dani ashi nitsumɔhe lɛ:
(1) Kɛ́ agbele valve lɛ naa lɛ, esa akɛ valve lɛ gbɔmɔtso lɛ adamɔ mligbɛ hewalɛ kaa lɛ naa, ni ji valve lɛ nitsumɔ hewalɛ sɛɛnamɔ lɛ shii enyɔ;
(2) Kɛ́ agbe valve lɛ naa lɛ, fãi enyɔ lɛ fɛɛ woɔ valve lɛ nitsumɔ mli hewalɛ ni fa fe 1.1, ni nu ko bɛ ni hoɔ, shi nu ni hoɔ yɛ valve ni akɛ dade efo mli lɛ mli lɛ faaa fe taomɔ nii ni sa lɛ.
Nɔ ni ji enumɔ, mli kɛ kponɔgbɛ nibii ni teɔ shi woɔ ŋmeii ni yɔɔ soft seal gate valve lɛ mli lɛ
5.1 Yɛ valve gbɔmɔtso lɛ mli kɛ kponɔgbɛ (ni oyaiyeli ni tsakeɔ lɛ fata he lɛ), klɛŋklɛŋ lɛ, esa akɛ afee shot blasting, ŋã ni ajieɔ kɛ ŋã ni ajieɔ kɛjɛɔ mli, ni esa akɛ akɛ powder ni bɛ poison epoxy resin lɛ afɔ electrostatically nɔ, ni elɛɛmɔ fe 0.3mm. Kɛji akɛ ewa akɛ akɛ electrostatically baafɔ epoxy resin ni bɛ awui lɛ nɔ yɛ valves wuji ni fe fɛɛ lɛ anɔ lɛ, esa akɛ ashɛ epoxy penti ni bɛ awui ni tamɔ nakai lɛ hu he ni ashɛre nɔ.
5.2 Ehe miihia ni valve gbɔmɔtso lɛ mli kɛ valve plɛte lɛ fãi fɛɛ afee nɔ ni tsiɔ ŋmei naa kwraa, yɛ gbɛ kome nɔ lɛ, ŋmei baafee nɔ ni ŋmei bɛ mli kɛji akɛ awo nu mli, ni ŋmei ni akɛtsuɔ nii yɛ tsɔne mli lɛ hu bɛ dade enyɔ lɛ ateŋ; Nɔ ni ji enyɔ lɛ, ŋwɛi lɛ nɔ tse, no hewɔ lɛ, nu ni nyɛɔ eshɛɔ he lɛ baa shi.
5.3 Hetsemɔ he taomɔ nii ni kɔɔ epoxy resin loo penti ni akɛtsiɔ ŋmeii ni yɔɔ valve gbɔmɔtso lɛ mli lɛ he lɛ esa akɛ aná kaa he amaniɛbɔɔ kɛjɛ hegbɛ ni kɔɔ he lɛ dɛŋ. Esa akɛ tsofai kɛ gbɔmɔtsoŋ nibii ni yɔɔ mli lɛ hu ashɛ taomɔ nii ni sa lɛ ahe.
Be ni akɛmajeɔ: Alemle-09-2024
