Nɔnyɛɛ kaa gbɛ kɛha nitsumɔhei valves.

Dani abaawo valve lɛ mli lɛ, esa akɛ afee valve lɛ hewalɛ kaa kɛ valve lɛ naatsii he kaa lɛ yɛ valve lɛ hydraulic kaa bench lɛ nɔ. Esa akɛ akwɛ low-pressure valves lɛ mli 20% mli trukaa, ni akwɛ 100% kɛji amɛhe esaaa; Esa akɛ akwɛ 100% ni ji valves ni yɔɔ teŋgbɛ kɛ nɔ ni yɔɔ ŋwɛi lɛ amli. Nibii ni akɛkaa valve lɛ mli hewalɛ kaa ji nu, fɔ, kɔɔyɔɔ, lasu, nitrogen, kɛ ekrokomɛi.

Abɛi valve hewalɛ kaa gbɛ

Hewalɛ ni akɛkaa pneumatic ŋmei valve lɛ he lɛ ji nɔ kome kɛ globe valve lɛ. Yɛ ŋmei valve lɛ nitsumɔ he kaa lɛ mli lɛ, esa akɛ ajie kaa lɛ kɛjɛ ŋmei lɛ naagbee ni hoɔ lɛ mli, esa akɛ agbele ŋmei plɛte lɛ naa, agbe naagbee kroko lɛ naa, ni esa akɛ ŋmei lɛ mli hewalɛ lɛ ashɛ sɛɛnamɔ ni atsɔɔ lɛ he; beni okwɛ akɛ nu ko bɛ ni hoɔ yɛ nɔ ni akɛwoɔ mli lɛ kɛ nibii krokomɛi ni akɛfiɔ he lɛ sɛɛ lɛ, ŋamɔ ŋmɔtɔ plɛte lɛ, gbelemɔ naagbee kroko lɛ, ni okwɛ ŋmɔtɔ valve lɛ. Nɔ ko bɛ ni hoɔ yɛ plɛte lɛ naatsii lɛ he. Ekolɛ akaŋ butterfly valve ni akɛtsuɔ nii kɛkwɛɔ nu ni hoɔ lɛ nɔ lɛ akwɛ koni ana bɔ ni etsuɔ ​​nii jogbaŋŋ ehaa.

Nɔnyɛɛ kaa gbɛ ni atsɔɔ nɔ akwɛɔ valve lɛ

Kwɛmɔ valve kaa shihilɛ: lift check valve disc lɛ axis lɛ yɛ he ko ni kɛ ŋwɛigbɛ lɛ kpãa gbee; ŋwɛi ŋta ni ji swing check valve channel lɛ kɛ disc ŋta lɛ yɛ he ko ni miihe ashɛ ŋwɛi ŋta lɛ he.

Yɛ hewalɛ kaa lɛ mli lɛ, ajieɔ kaa lɛ kɛjɛɔ ŋshɔ lɛ naa kɛyaa sɛɛnamɔ ni atsɔɔ lɛ nɔ, ni agbeɔ naagbee kroko lɛ naa, ni eshɛɔ he koni ena akɛ valve lɛ gbɔmɔtso lɛ kɛ valve lɛ nɔ tsɔne lɛ bɛ nɔ ko ni hoɔ.

Yɛ tsɔne ni akɛtswaa tsɔne lɛ he kaa lɛ mli lɛ, akɛ tsɔne ni akɛkaa nii lɛ woɔ mli kɛjɛɔ kpo lɛ naagbee, ni akwɛɔ tsɔne lɛ hiɛ yɛ tsɔne lɛ mlibotemɔ naagbee lɛ, ni nɔ ko bɛ ni hoɔ yɛ tsɔne ni akɛwoɔ mli lɛ kɛ gasket lɛ he lɛ ni sa.

Nɔnyɛɛ kaa gbɛ ni atsɔɔ nɔ akaa shinaa valve lɛ

Hewalɛ kaa ni yɔɔ shinaa lɛ naa lɛ ji nɔ kome kɛ nɔ ni yɔɔ globe valve lɛ mli lɛ. Gbɛi enyɔ yɔɔ ni atsɔɔ nɔ akaa bɔ ni shinaa lɛ naa valve lɛ mli wa ha lɛ akwɛɔ.

1Gbelemɔ shinaa lɛ koni eha nɔnyɛɛ ni yɔɔ valve lɛ mli lɛ aya hiɛ kɛyashɛ sɛɛnamɔ ni atsɔɔ lɛ he; no sɛɛ lɛ, ŋa shinaa lɛ, jiemɔ shinaa lɛ naa valve lɛ amrɔ nɔŋŋ, kwɛmɔ kɛji nu ko miiho yɛ shinaa lɛ afãi enyɔ lɛ fɛɛ nɔ, loo okɛ kaa mli nii lɛ awo plɔg ni yɔɔ valve lɛ nɔ lɛ mli tɛ̃ɛ kɛyashɛ sɛɛnamɔ ni atsɔɔ lɛ he , kwɛmɔ naatsii ni yɔɔ shinaa lɛ afãi enyɔ lɛ fɛɛ lɛ. Atsɛɔ gbɛ ni yɔɔ ŋwɛi nɛɛ akɛ teŋgbɛ nɔnyɛɛ kaa. Esaaa akɛ akɛ gbɛ nɛɛ tsuɔ nii kɛkaa shinaa naa valves ni nominal diameter lɛ baa shi yɛ DN32mm lɛ nɔ.

2Gbɛ kroko hu ji ni agbele shinaa lɛ koni valve kaa lɛ mli hewalɛ aya hiɛ kɛyashɛ sɛɛnamɔ ni atsɔɔ lɛ he; no sɛɛ lɛ, ŋa shinaa lɛ, ogbele shwilafoi lɛ anaagbee kome, ni okwɛ kɛji nɔ ni akɛfiɔ naa lɛ nɔ lɛ miiho. No sɛɛ lɛ, ku osɛɛ ni okɛ kaa ni yɔɔ ŋwɛi nɛɛ atsu nii ekoŋŋ kɛyashi ebaashɛ he.

Akɛ pneumatic gate valve lɛ mli nibii ni akɛwoɔ mli lɛ kɛ gasket lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ mli tsɔne lɛ he kaa lɛ baatsu nii.

Nɔnyɛɛ kaa gbɛ ni atsɔɔ nɔ ajieɔ nɔnyɛɛ shi valve

1Akɛ hewalɛ kaa ni ji valve ni haa nɔnyɛɛ baa shi lɛ feɔ ekome yɛ fã kome kaa lɛ sɛɛ, ni abaanyɛ aka lɛ hu akwɛ yɛ kpee lɛ sɛɛ. Be ni akɛkaa hewalɛ: 1min kɛha DN<50mm; nɔ ni fe minitii enyɔ kɛha DN65～mm 150; nɔ ni fe minitii etɛ kɛha DN>150mm.

Kɛji akɛ atswa bɔɔlu lɛ kɛ emli nibii lɛ agbe naa lɛ, okɛ tsɔne ni haa tsɔne lɛ mli hewalɛ ni baa shi lɛ mli hewalɛ ni fe fɛɛ lɛ toi 1.5 awo mli, ni okɛ kɔɔyɔɔ afee hewalɛ kaa.

2Akɛ kɔɔyɔɔ ni nyɛɔ eboteɔ mli lɛ he kaa lɛ baatsu nii yɛ gbɛ ni akɛtsuɔ nii diɛŋtsɛ lɛ nɔ. Kɛ́ okɛ kɔɔyɔɔ loo nu miika lɛ, kaa yɛ 1.1 ni ji nominal pressure lɛ mli; kɛji akɛ okɛ steam miika lɛ, okɛ nitsumɔ mli hewalɛ ni fe fɛɛ ni aŋmɛ gbɛ yɛ nitsumɔ mli latsaa lɛ shishi lɛ atsu nii. Srɔtofeemɔ ni yɔɔ tsɔne ni boteɔ mli kɛ tsɔne ni jeɔ kpo lɛ teŋ lɛ he miihia ni akafee nɔ ni baa shi fe 0.2MPa. Gbɛ ni atsɔɔ nɔ akaa lɛ ji: kɛ́ atsake tsɔne ni boteɔ mli lɛ mli hewalɛ lɛ sɛɛ lɛ, fiofio lɛ, atsake tsɔne ni akɛtsakeɔ tsɔne lɛ mli tsɔne lɛ, koni tsɔne ni jeɔ kpo lɛ mli hewalɛ lɛ atsake yɛ gbɛ ni yɔɔ mlɛo nɔ ni eya nɔ yɛ sɛɛnamɔi ni fe fɛɛ kɛ nɔ ni baa shi fe fɛɛ lɛ ateŋ, ni ekɛ ehe akawo mli loo ekɛ ehe akawo mli. Kɛha steam pressure reducing valve lɛ, kɛ́ atsake steam pressure lɛ mli lɛ, aŋmɛɔ valve lɛ sɛɛ beni agbe valve lɛ naa lɛ sɛɛ, ni outlet pressure lɛ ji nɔ ni nɔ kwɔ fe fɛɛ kɛ nɔ ni baa shi fe fɛɛ. Yɛ minitii enyɔ mli lɛ, esa akɛ tsɔne ni ajieɔ lɛ kpo lɛ mli hewalɛ ni yaa hiɛ lɛ ashɛ taomɔ nii ni yɔɔ Table 4.176-22 lɛ he. Yɛ nakai beaŋ nɔŋŋ lɛ, esa akɛ paipii ni yɔɔ valve lɛ sɛɛ lɛ afee Volume lɛ kɛ taomɔ nii ni yɔɔ Table 4.18 lɛ kpãa gbee koni anyɛ ashɛ he; kɛha nu kɛ kɔɔyɔɔ mli hewalɛ ni baa shi lɛ, kɛ́ ato tsɔne ni boteɔ mli lɛ he gbɛjianɔ ni tsɔne ni jeɔ kpo lɛ ji zero lɛ, agbeɔ tsɔne ni tsiɔ tsɔne lɛ naa koni akɛka bɔ ni eyɔɔ mlɛo ha lɛ, ni tsɔne ko ni hoɔ yɛ minitii 2 mli lɛ esaaa.

Nɔnyɛɛ kaa gbɛ kɛha globe valv kɛ thrɔtl valv

Kɛha globe valve kɛ throttle valve lɛ hewalɛ kaa lɛ, bei pii lɛ, akɛ valve ni abua naa lɛ woɔ pressure test frame lɛ mli, agbeleɔ valve disc lɛ, awoɔ medium lɛ mli kɛyashɛɔ sɛɛnamɔ ni atsɔɔ lɛ he, ni akwɛɔ valve lɛ gbɔmɔtso lɛ kɛ valve lɛ nɔ kɛji latsaa kɛ nu ni hoɔ. Abaanyɛ afee hewalɛ kaa lɛ hu yɛ fã kome nɔ. Tightness kaa lɛ ji kɛha valve ni tsiɔ nii anaa lɛ pɛ. Yɛ kaa lɛ mli lɛ, globe valve lɛ valve stem lɛ yɛ shihilɛ ni damɔ shi shiŋŋ mli, agbeleɔ valve disc lɛ, ajieɔ medium lɛ kɛjɛɔ valve disc lɛ shishigbɛ naagbee kɛyaa sɛɛnamɔ ni atsɔɔ lɛ nɔ, ni akwɛɔ packing kɛ gasket lɛ mli; kɛ́ etsɔ kaa lɛ mli lɛ, agbeɔ valve disc lɛ naa, ni agbeleɔ naagbee kroko lɛ koni ana kɛji nu ko miiho. Kɛji akɛ abaaka valve lɛ hewalɛ kɛ emli ŋmɔlɔ he kaa lɛ, abaanyɛ afee hewalɛ he kaa lɛ klɛŋklɛŋ, no sɛɛ lɛ, abaa nɔnyɛɛ lɛ shi kɛyashɛ sɛɛnamɔ ni ato he gbɛjianɔ yɛ ŋmɔlɔ he kaa lɛ mli lɛ nɔ, ni akwɛ nɔ ni akɛwoɔ mli lɛ kɛ gasket lɛ mli; no sɛɛ lɛ, agbeɔ valve disc lɛ naa, ni agbeleɔ tsɔne lɛ naagbee lɛ koni ana kɛji nɔ ni akɛfiɔ tsɔne lɛ he lɛ miiho.

Bɔɔlu valve nɔnyɛɛ kaa gbɛ

Esa akɛ afee pneumatic bɔɔlu valve lɛ hewalɛ kaa lɛ yɛ bɔɔlu valve lɛ fã ni agbele lɛ mli.

1Floating ball valve sealing kaa: kɛ valve lɛ awo shihilɛ ni mli egbele mli fã mli, ni okɛ kaa mli nibii lɛ awo naagbee lɛ eko mli, ni oŋa naagbee kroko lɛ; tsɔ bɔɔlu lɛ nɔ shii abɔ, gbelemɔ naagbee ni agbe naa lɛ beni valve lɛ yɔɔ shihilɛ ni agbe naa lɛ mli lɛ, ni okwɛ bɔ ni bɔɔlu lɛ tsuɔ nii ehaa yɛ packing kɛ gasket lɛ he yɛ be kome too mli. Esaaa akɛ shwiemɔ ko baa. No sɛɛ lɛ, akɛ kaa gbɛ lɛ baa kɛjɛɔ naagbee kroko lɛ nɔ ni atĩɔ kaa ni yɔɔ ŋwɛi nɛɛ mli ekoŋŋ.

2Kaa ni akɛwoɔ bɔɔlu ni yɔɔ shiŋŋ lɛ mli lɛ he kaa: dani aka lɛ, tsɔ bɔɔlu lɛ nɔ shii abɔ ni jatsu ko akawo nɔ, bɔɔlu ni yɔɔ shiŋŋ lɛ yɛ shihilɛ ni mli wa mli, ni akɛ kaa mli nibii lɛ baa kɛjɛɔ naagbee kome kɛyaa sɛɛnamɔ ni atsɔɔ lɛ nɔ; akwɛɔ hiɛkpamɔ naagbee lɛ nitsumɔ ni akɛtsiɔ nii anaa lɛ mli kɛtsɔ tsɔne ni akɛkwɛɔ tsɔne lɛ nɔ, ni tsɔne lɛ jalɛsaneyeli ji 0 .5 kɛyashi 1, sɛɛkuu lɛ ji 1.6 shii abɔ ni akɛkaa tsɔne lɛ. Yɛ be ni ato lɛ mli lɛ, kɛji akɛ nɔ ko ni haa mɔ tsui nyɔɔ emli lɛ bɛ lɛ, no lɛ esa; no sɛɛ lɛ, okɛ kaa lɛ aba kɛjɛ naagbee kroko lɛ nɔ, ni okɛ kaa ni yɔɔ ŋwɛi nɛɛ atsu nii ekoŋŋ. No sɛɛ lɛ, okɛ valve lɛ awo shihilɛ ni mli egbele fã mli, ni oŋa enaagbee enyɔ lɛ fɛɛ, ni okɛ nɔ ni yɔɔ mli lɛ awo mligbɛ ŋmei lɛ mli. Kwɛmɔ nɔ ni akɛwoɔ mli lɛ kɛ gasket lɛ yɛ kaa lɛ mli hewalɛ shishi, ni esaaa akɛ nu ko hoɔ yɛ mli.

3Abaaka bɔɔlu valve ni yɔɔ gbɛi etɛ nɔ lɛ akwɛ kɛji eyɛ tight yɛ he fɛɛ he.