Hydraulic wedge gate valve DN400 PN25

1. Kufotokozera ndi Zofunika Kwambiri

Valve ya Hydraulic Wedge Gate ndi valavu yoyenda yozungulira pomwe diski (chipata) yooneka ngati wedge imakwezedwa kapena kutsitsidwa ndi hydraulic actuator kuti azitha kuyendetsa madzimadzi.

Zofunika zazikulu za kukula ndi kalasi iyi:

• Mapangidwe Athunthu Obowola: M'mimba mwake m'mimba mwake umafanana ndi chitoliro (DN400), zomwe zimapangitsa kuti kutsika kwamphamvu kutsika kwambiri kukatseguka ndikulola kuti paipi itseke.
• Kuyenda kwa Bidirectional: Koyenera kuyenda mbali zonse.
• Tsinde Lokwera: Tsinde limakwera pamene valavu imatsegulidwa, kupereka chisonyezero chowonekera bwino cha malo a valve.
• Kusindikiza kwa Zitsulo-ku-Metal: Nthawi zambiri amagwiritsa ntchito mphete ndi mphete zokhala ndi nkhope zolimba (monga zokhala ndi Stellite) pokokoloka ndi kukana kuvala.
• Kumanga Kwamphamvu: Kupangidwa kuti izitha kuthana ndi zovuta zazikulu ndi mphamvu, zomwe zimapangitsa kuti thupi likhale lolemera komanso lolimba, nthawi zambiri kuchokera kuzitsulo kapena zitsulo zopanga.

2. Zigawo Zazikulu

1. Thupi: Chigawo chachikulu chokhala ndi mphamvu, chomwe chimapangidwa kuchokera ku Carbon Steel (WCB) kapena Stainless Steel (CF8M/316SS). Malekezero opindika (mwachitsanzo, PN25/ASME B16.5 Kalasi 150) ndi muyezo wa DN400.
2. Bonnet: Wotsekeredwa m'thupi, amasunga tsinde ndipo amapereka malire okakamiza. Nthawi zambiri boneti yotalikirapo imagwiritsidwa ntchito pofuna kutchinjiriza.
3. Wedge (Chipata): Chigawo chofunikira chosindikizira. Kwa PN25, Flexible Wedge ndiyofala. Ili ndi chodulidwa kapena pozungulira kuzungulira kwake komwe kumapangitsa kuti mpheroyo isunthike pang'ono, kuwongolera kusindikiza ndikubwezera kusintha kwakung'ono pamakonzedwe a mipando chifukwa cha kufalikira kwa matenthedwe kapena kupsinjika kwa mapaipi.
4. Tsinde: Shaft yolimba kwambiri (monga SS420 kapena 17-4PH Stainless Steel) yomwe imatumiza mphamvu kuchokera ku actuator kupita ku wedge.
5. Mphete zapampando: mphete zolimba zopindika kapena zowotcherera m'thupi zomwe mpheroyo imamatira. Iwo amapanga kutseka kolimba.
6. Kuyika: Chisindikizo (nthawi zambiri graphite chifukwa cha kutentha kwakukulu) kuzungulira tsinde, chomwe chili mu bokosi loyikapo, kuteteza kutayikira kwa chilengedwe.
7. Hydraulic Actuator: Makina a piston kapena ma goli a Scotch oyendetsedwa ndi hydraulic pressure (nthawi zambiri mafuta). Imapereka torque / kukankhira kwakukulu komwe kumafunikira kuti mugwiritse ntchito valavu yayikulu ya DN400 motsutsana ndi kupanikizika kwakukulu.

3. Mfundo Yogwira Ntchito

• Kutsegula: Hydraulic fluid imalowetsedwa mu actuator, kusuntha pisitoni. Kuyenda uku kumasinthidwa kukhala mayendedwe a rotary (scotch goli) kapena linear (pistoni) yomwe imazungulira tsinde la valve. Tsinde limalowa m'mphepete mwake, ndikulikweza kwathunthu mu bonnet, osatsekereza njira yolowera.
• Kutseka: Madzimadzi amadzimadzi amayikidwa mbali ina ya actuator, kutembenuza mayendedwe. Tsinde limazungulira ndikukankhira mpheroyo pansi pamalo otsekedwa, pomwe imakanikizidwa mwamphamvu pamphete ziwiri zapampando, ndikupanga chisindikizo.

Chidziwitso Chofunikira: Vavu iyi idapangidwa kuti ikhale yokhayokha (yotseguka kwathunthu kapena yotsekedwa kwathunthu). Siziyenera kugwiritsidwa ntchito poyendetsa kapena kuyendetsa bwino, chifukwa izi zingayambitse kugwedezeka, cavitation, ndi kukokoloka kofulumira kwa mphero ndi mipando.

4. Zomwe Zimagwira Ntchito

Chifukwa cha kukula kwake komanso kuthamanga kwake, vavu iyi imagwiritsidwa ntchito pofunafuna mafakitale:

• Kutumiza ndi Kutumiza Madzi: Kupatula magawo a mapaipi akulu.
• Zomera Zamagetsi: Njira zoziziritsira madzi, mizere yamadzi odyetsa.
• Industrial Process Water: Zomera zamakampani akuluakulu.
• Zomera za Desalination: High-pressure reverse osmosis (RO) mizere.
• Kukonza Migodi ndi Mchere: Mapaipi amatope (ndi kusankha koyenera).

5. Ubwino ndi Kuipa kwake

6. Zofunikira Zofunikira pakusankha ndi Kugwiritsa Ntchito

• Zosankha Zofunika: Fananizani thupi / mphero / mipando (WCB, WC6, CF8M, etc.) ndi utumiki wamadzimadzi (madzi, corrosivity, kutentha).
• Mapeto olumikizira: Onetsetsani kuti miyezo ya flange ndi kuyang'ana (RF, RTJ) ikugwirizana ndi payipi.
• Hydraulic Power Unit (HPU): Vavu imafuna HPU yosiyana kuti ipange hydraulic pressure. Ganizirani za liwiro logwirira ntchito, kupanikizika, ndi kuwongolera komwe kumafunikira (kwapafupi/kutali).
• Fail-Safe Mode: The actuator ikhoza kutchulidwa ngati Fail-Open (FO), Fail-Closed (FC), kapena Fail-in-Last-Position (FL) kutengera zofunikira zachitetezo.
• By-Pass Valve: Pakugwiritsa ntchito kuthamanga kwambiri, valavu yaing'ono yodutsa (mwachitsanzo, DN50) nthawi zambiri imayikidwa kuti igwirizane ndi mpheroyo musanatsegule valavu yayikulu, kuchepetsa torque yofunikira.

Mwachidule, Hydraulic Wedge Gate Valve DN400 PN25 ndi kavalo wothamanga kwambiri, wolemetsa kwambiri kuti ayimitse kapena kuyambitsa kutuluka kwa madzi m'mapaipi akuluakulu, othamanga kwambiri. Kugwiritsa ntchito kwake kwa hydraulic kumapangitsa kuti ikhale yoyenera pazigawo zakutali kapena zodzichitira zokha.