Mfundo Yogwira Ntchito ndi Ubwino wa Taike Valve Plug Valve

Pulagi valve, valavu yomwe imagwiritsa ntchito plug thupi lokhala ndi dzenje ngati membala wotsegulira ndi wotseka. Thupi la pulagi limazungulira ndi ndodo ya valve kuti likwaniritse kutsegula ndi kutseka, Vavu yaing'ono ya pulagi yopanda kulongedza imadziwikanso kuti "tambala". Thupi la pulagi la valavu ya pulagi nthawi zambiri ndi thupi lokhazikika (lomwe limadziwikanso kuti silinda), lomwe limagwirizana ndi bowo lopindika la thupi la valavu kupanga awiri osindikiza. Pulagi valve ndi mtundu woyambirira wa valavu yomwe imagwiritsidwa ntchito, yokhala ndi mawonekedwe osavuta, kutseguka mwachangu ndi kutseka, komanso kutsika kwamadzimadzi. , kutsegulira kwakukulu ndi kutseka mphamvu, komanso kuvala kosavuta. Amagwiritsidwa ntchito pochepera (osapitilira 1 MPa) komanso m'mimba mwake pang'ono (osakwana 100 mm). Pofuna kukulitsa ma valve ogwiritsira ntchito mapulagi, zida zambiri zatsopano zapangidwa. Vavu ya pulagi yopaka mafuta ndiye mtundu wofunikira kwambiri. Mafuta apadera opaka mafuta amabayidwa kuchokera pamwamba pa pulagi pakati pa dzenje la valve ndi thupi la pulagi kuti apange filimu yamafuta kuti achepetse kutsegula ndi kutseka torque, kupititsa patsogolo ntchito yosindikiza ndi moyo wautumiki. Kuthamanga kwake kogwira ntchito kumatha kufika 64 MPa, kutentha kwakukulu kogwira ntchito kumatha kufika 325 ℃, ndi m'mimba mwake kufika 600 mm. Pali njira zosiyanasiyana zopititsira ma plug valves. Mtundu wowongoka wamba umagwiritsidwa ntchito kwambiri podula madzimadzi. Mavavu a pulagi anjira zitatu ndi zinayi ndi oyenera mavavu osinthira madzimadzi. Wotsegula ndi wotseka wa valavu ya pulagi ndi silinda ya perforated yomwe imazungulira pafupi ndi axis perpendicular to channel, potero kukwaniritsa cholinga chotsegula ndi kutseka njira. Mavavu omangira amagwiritsidwa ntchito kwambiri potsegula ndi kutseka mapaipi ndi media media.

Ubwino waukulu wa mavavu a pulagi ndi awa:

1. Yoyenera kugwira ntchito pafupipafupi, kutsegula ndi kutseka mwachangu komanso mopepuka.

2. Low madzimadzi kukana.

3. Kapangidwe kosavuta, kakulidwe kakang'ono, kulemera kopepuka, ndi kukonza kosavuta.

4. Ntchito yabwino yosindikiza.

5. Njira yoyendetsera sing'anga imatha kukhala yosasunthika, mosasamala kanthu za njira yoyika.

6. Palibe kugwedezeka, phokoso lochepa.

7. Mavavu a pulagi amatha kugawidwa m'mitundu inayi molingana ndi kapangidwe kake: mavavu olimba a pulagi, mavavu odzisindikiza okha, mavavu a pulagi, ndi mavavu a pulagi a jekeseni wamafuta. Malinga ndi mtundu wa tchanelo, imatha kugawidwa m'mitundu itatu: molunjika kudzera mumtundu, njira zitatu, ndi njira zinayi.