Kodi kusiyana pakati pa valavu ya SDV ndi valavu yotetezera ndi kotani?

Pali kusiyana kwakukulu pakati pa mavavu a SDV (mavavu otseka) ndi mavavu oteteza pankhani ya ntchito, mfundo yogwirira ntchito komanso zochitika zogwiritsira ntchito. Izi ndi kusanthula mwatsatanetsatane kwa kusiyana pakati pa mavavu awiriwa:

Choyamba, kusiyana kwa magwiridwe antchito

Valavu ya SDV (valavu yodulidwa):

Ntchito yaikulu ndikudula ndikuwongolera kuyenda kwa madzi. Pakachitika ngozi, valavu ya SDV imatha kudula msanga kuyenda kwa zinthu zolumikizira, kuletsa kufalikira kwa ngozi, ndikuwonetsetsa kuti antchito ndi zida zili otetezeka.

Valavu yotetezera:

Ntchito yaikulu ndikuletsa kuwonongeka kwa zida kapena mapaipi chifukwa cha kupanikizika kwambiri. Pamene kupanikizika kwapakati pa zida kapena mapaipi kupitirira mtengo womwe watchulidwa, valavu yotetezera imatseguka yokha, ndipo kupanikizika kumachepetsedwa potulutsa cholumikiziracho kunja kwa dongosolo, motero kuteteza chitetezo cha zida ndi mapaipi.

Chachiwiri, kusiyana kwa mfundo zogwirira ntchito

Valavu ya SDV (valavu yodulidwa):

Mfundo yogwirira ntchito imachokera pa ma actuator a pneumatic. Pambuyo polandira chizindikiro chowongolera, valavu ya solenoid imalamulira kuyatsidwa kwa gwero la mpweya wopanikizika, motero imayendetsa kutsegula kapena kutseka kwa valavu. Mavalavu a SDV amatseguka kwathunthu komanso kutsekedwa kwathunthu, kotero amadziwikanso kuti mavalavu okhala ndi malo awiri.

Valavu yotetezera:

Mfundo yogwirira ntchito imachokera pa mphamvu ya kasupe kapena kulemera. Pamene kupanikizika kwapakati kupitirira mtengo wotchulidwa, kasupe kapena kulemera kumakanikizidwa kapena kusunthidwa, motero kutsegula valavu kuti itulutse kupanikizika. Kupanikizika kukachepa kufika pa mtengo wokhazikitsidwa, kasupe kapena kulemera kumabwerera ndipo valavu imatseka yokha.

Chachitatu, kusiyana kwa zochitika zogwiritsira ntchito

Valavu ya SDV (valavu yodulidwa):

Amagwiritsidwa ntchito kwambiri m'mafakitale a petrochemical, mankhwala, chakudya, zomangamanga ndi mafakitale ena, komanso m'mapulatifomu amafuta a m'nyanja. Ndi oyenera makamaka pazochitika zomwe njira zolumikizirana ziyenera kudulidwa mwachangu kuti ziteteze zida ndi machitidwe.

Valavu yotetezera:

Amagwiritsidwa ntchito makamaka mu ma boiler, ziwiya zopondereza, makina apaipi ndi zida zina kuti apewe kuwonongeka kwa zida ndi ngozi zachitetezo zomwe zimachitika chifukwa cha kupanikizika kwambiri. Ma valve otetezera amagwiritsidwanso ntchito kwambiri mu ma boiler a nthunzi, tanker ya gasi yamafuta osungunuka kapena magalimoto a sitima ya gasi yamafuta osungunuka, Zitsime zopangira, zida zopangira mphamvu ya nthunzi yothamanga kwambiri ndi zochitika zina.

Chachinayi, kusiyana kwina

Makhalidwe a kapangidwe kake:

Kapangidwe ka valavu ya SDV (valavu yodulidwa) ndi kosavuta, nthawi zambiri imakhala ndi magawo awiri a actuator ndi thupi la valavu. Actuator ikhoza kukhala ya pneumatic, yamagetsi kapena ya hydraulic, ndi zina zotero, ndipo thupi la valavu lingasankhidwe malinga ndi makhalidwe a sing'anga ndi zofunikira pakugwiritsa ntchito.

Kapangidwe ka valavu yotetezera ndi kovuta, nthawi zambiri kuphatikizapo thupi, mpando, valavu yophimba, kasupe kapena kulemera ndi zinthu zina. Mitundu yosiyanasiyana ya mavalavu otetezera (monga mtundu wa kasupe, mtundu wa kulemera kwa lever, mtundu wa pulse, ndi zina zotero) ali ndi makhalidwe osiyanasiyana ndi momwe amagwiritsidwira ntchito.

Zofunikira pakuchita bwino:

Zofunikira pakugwira ntchito kwa valavu ya SDV (valavu yodulidwa) zimaphatikizapo magwiridwe antchito otseka, liwiro lotsegulira ndi kutseka, nthawi yogwirira ntchito ndi zina zotero. Posankha, ndikofunikira kusankha malinga ndi momwe ntchito ikuyendera komanso mawonekedwe a media.

Zofunikira pakugwira ntchito kwa valavu yotetezera ndi zokhwima kwambiri, kuwonjezera pa magwiridwe antchito oyambira otsekera ndi liwiro lotsegulira ndi kutseka, komanso ziyenera kuganizira mphamvu yotulutsira madzi, kuthamanga kobwerera, kusiyana kwa kuthamanga kotsegulira ndi kutseka ndi zizindikiro zina zofunika. Zizindikiro izi zimakhudza mwachindunji momwe valavu yotetezera imagwirira ntchito komanso momwe dongosololi limagwirira ntchito bwino.

Mwachidule, pali kusiyana kwakukulu pakati pa mavavu a SDV (mavavu odulidwa) ndi mavavu oteteza malinga ndi ntchito, mfundo yogwirira ntchito, zochitika zogwiritsira ntchito komanso mawonekedwe ake. Kusankha kuyenera kuganiziridwa mokwanira malinga ndi zosowa zenizeni zogwiritsira ntchito komanso momwe ntchito ikuyendera.